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1. Create a Drawpath Data Page The Drawpath data page displays an overhead map of a LINDA dataset path The map can display the locations along the path where data were taken and where an event marker was entered Adjusting a data point s angle can modify the path Directional corrections to the points along the path can be made at any existing vertices a point in the path where a change in direction occurs or any data point along the path to create a new vertex To see an overhead view of the path used to create the dataset you will need to create a Drawpath data page To create a Drawpath data page e Right click on the Dataset name Parking Garage the Workspace window tree e Choose Create Data Pages Drawpath from the context menu e Anew data page tab named Drawpath will be added to the dataset sheet and it will be activated e Your screen should look like the picture below after the Drawpath data page has been created The up and back pattern that started on the left side of the screen should have continued throughout the dataset However due to the omission of a turn the path is incorrect EMCALC 2000 Huot Tow 6 Din d Ver Commeicaion Jock Winde be E alla 039 eet mio lre 5 HN Cl Pan Garage 119 120 You will notice that each event there is only one is marked on the drawpath by a black circle and all data measurements are marked by gray arrows wh
2. My EMDEN Finn Copp cl S00 kV Lina Mag Copy el 500 M iw Di T My Project MICA CCsitiCagn of 500 KV Line Map nib ATE Bret renta oe J Gerne Exprsan Tera Jy Demi 10 Map Gier Wim 7 112 Change the Legend Style e Click the right mouse button on the 3D Map chart to display the 3D Chart Control Properties dialog box e Click on the Legend tab The General sub tab should be active e From the Type list box choose Continuous You will notice the legend change immediately e Click on the Border sub tab Choose Plain from the Type dropdown list box A thick lined border will be drawn around the legend e Enter the number 1 into the Width field then click on the Apply button The thick line will be changed to a thin line e Click the OK button on the 3D Chart Control Properties dialog box e Your screen should now look like the picture below EMCALC 2000 Cops of 500 bY Lise Map Kb Fie Ed Yew Garmin Lock indas Lie j 3 leixi Des ar Enno were vet 5 stus t EMDEN Fez Q 24 Copp ol LOK tna Mag W Map uncer 2006 4 Tk Lees Fey Project MC At CDC cp ot 500 kY Line Map re HERSE krena A Geter Tr j pE D EI 113 Change the 3D Map Title Let s change the size and style of the chart title e Click the right mouse button on the chart to display the 3D Chart Control Properties dialog box e Click on the Titles tab e The Header
3. 2 tette terme bat 108 Change Floor and Cellinig 2 2 20er 112 Change the Legend Style Haren etre tte hime tuts 113 Change the 3D Map Title 114 Save Changes and EXit 2 etaient datio bab roga ied 115 Quick Tour 6 116 Introduction to Quick Tour O ereraa a 117 Open the Quick Tour 6 Data File sssssssssem 118 Create a Drawpath Data Page sssssssseeeemnn 119 Locate the Record to be Modified sssssssssssssssseee 121 Modify the Angle dai tete Ro Ree Pr ROO eben 123 Gorrectthe Angle i oma e de de re a e DO dee do UE 125 Save the Changes and Exit sssssssssss eene 126 EMCALC 2000 Basics 127 The BASICS usted nextel aspectus tl oet a AEE E 128 Tetrmlnology 1 iem HER ee PERDRE ee Hd 129 Record Types iacere bert d o de o pt a a 131 Unit ypes mio eL eee epo rob edet re tad der etis 133 The Application 2 ten E etd EU aret 134 Workspace Window sssssssssssseseneeeenenen enemies 136 Databook WiIndOoW 4 dt aan 137 Real Time Monitor Window sssseeeenn ene 139 Databooks 140 Databook Fil68 42 He H dee epi ex ov cier 141 Creating a New Databook sssssssseeee eee 143 Opening a Databook ida been te tn etu tpa celu Mag edge 144 Savingra Databook 5 dene adri 145 Closing aiDatabook e eem tatus eb tacite 146 Renaming a Databook d ep bm tee pb ebur 147 Copying ia Databook seit
4. 335 Field Polarization Typically magnetic field calculations derive the value of the major axis of the magnetic field ellipse at a given location This is the value measured when a single axis meter is aligned in space to read the maximum field The EMDEX II resultant reading can differ significantly from the calculated field results or a single axis meter reading when the measured field is elliptically polarized In the special case of a circularly polarized field the magnetic field resultant can be 1 4 times greater than the major axis field In the case of a linearly polarized field the resultant and the major axis field values are identical A detailed discussion of polarized fields and the resultant value is found Appendix I 336 Rough Handling Due to the nature of the magnetic field sensors on the EMDEX Il a sudden shock to the meter such as dropping it can cause a sharp spike in the field reading Always take precautions against sudden jarring or violent sudden movement of the instrument If the meter is dropped or jarred we suggest that you have its calibration checked 337 Power Requirements of EMDEX II The operating voltage range for the EMDEX II is 6 5 volts to 10 0 volts If the battery voltage falls below 6 0 volts the EMDEX II s memory and any data it has collected may be cor rupted or lost It is important that a constant power source of 6 5 10 0 volts be maintained when the EMDEX II is in use Note If
5. 346 10 15 10 30 10 30 1 6 days 2 5 days 4 9 days 26 0 hrs 43 3 hrs 3 6 days 10 8 days 108 days 13 0 hrs 21 6 hrs 43 3 hrs 5 4 days 54 1 days 5 9 hrs 9 8 5 4 days 8 1 days 16 161 days 85 hrs 142 2 hrs 11 8 days 35 5 days 355 days 42 6 hrs 71 1 hrs 142 2 hrs 17 8 days 178 days 19 4 hrs 32 3 day 4 5 day day 25 hrs Not Test ed Not Test ed Not Test ed Not Test ed 25 hrs Not Test ed Not Test ed Not Test ed Not Test ed 25 hrs Not 14 4 day 16 day 21 day 100 hrs Not Test Not Test ed Not Test Not Test ed 100 hrs Not Test ed Not Test ed Not Test ed Not Test ed 100 hrs Not onic Resu Itant X y andz STA NDB Mode 10 15 30 hrs 19 7 hrs 29 5 hrs 2 5 days 24 days 18 180 days hrs 2 7 days 4 0 days 8 0 days 81 days 59 592 days Test ed Not Test ed Not Test ed Not Test ed Not Test ed day Test ed Not Test ed Not Test ed Not Test ed Not Test ed 21 day 347 Appendix E 348 Using the EMDEX LITE The EMDEX LITE meter is designed to be very easy to use with a minimal user interface consisting of a power switch and a data collect switch see the figure below The three user parameters th
6. Count 12 254 Chart rea PlotCube View3D Levels ChartStyles Axes ChartGroup Styles Tiles Legend General FillStyle Style3 Pattern Dotted Style4 AR Style5 y Width fi Color Add 000080 m RGE Name NavyBlue ContourStyles a Style2 Cancel Apply Help The number of ContourStyles should always be one more that the number of ContourLevels Notice that the number of styles in the tree is twelve This is also denoted by the Count 12 text located below the Remove button Remember that the number of ContourLevels was eleven There is a tight correlation between the ContourStyles listed in the Styles tab and the ContourLevels listed in the tree control on the Levels tab Style1 is used to denote field levels up to Level1 Style2 denotes fields between Level1 and Level2 Style3 denotes fields between Level2 and Level3 and so on Style12 is used to denote the fields that are greater than the highest level Level11 defined on the Levels tab Select the style that you want to change in the tree control and it s current data will show up in the tab on the right You can change the pattern used to draw the contour line by choosing a new pattern in the dropdown list box The contour line will be updated on the chart immediately You can also change the width in pixels of the contour line by entering a new value in the Width field The
7. Nw O w ow ON NO o EMCALC program converts this value to the actual date and time the measurement was started using the PC s system time and the value in this field EMCALC then overwrites this field with the number of seconds since 00 00 00 January 1 1970 Maximum analog to digital A D broadband resultant value in digital units Maximum A D harmonic resultant value in digital units Maximum A D broadband E channel value in digital units Maximum A D harmonic E channel value in digital units Number of distance strobes from the LINDA Measurement Wheel accessory Contains the 8 character Data File name of the original Data File to which this Data Set belonged Not used ASCII label which describes the data in the Data Set This is entered by the user when the file is transferred from the EMDEX II or LITE to the PC Not used Record type NNI ON GON AN ONTON OD 20 ON E C5 Oo N 1 Broadband resultant 2 Broadband resultant harmonic resultant 3 Broadband resultant broadband E field 4 Broadband resultant harmonic resultant Broadband E field harmonic E field 5 Broadband x y z resultant 6 Broadband x y z resultant harmonic x y z resultant 7 Broadband x y z resultant azimuth cumulative LINDA Wheel strobes Event recalculation status flag Contains the byte offset location of the descriptive geometric and cumulative exposure statistics for this Data S
8. 140 Bearing Indicator 5 200 To get a reliable direction bearing choose an area free from power lines and metal structures In the interior of a building or home this may be impossible In those circumstances we recommend that changes in direction be recorded relative to the current direction of travel 375 Since the compass is easily affected by the environment try not to rely on it to travel in straight lines It is more reliable to choose a distant object as a target and walk straight toward it 376 Measuring Non linear Paths The 3D Map in EMCALC 2000 creates a 3 dimensional representation of the measurement path and the magnetic field strength EMCALC 2000 assumes that all measurements made between direction changes recorded on the EMDEX II are along a straight line If you wish to measure the fields along a curved path we recommend that you approximate the path by breaking up the measurement into a number of straight line paths For instance a circular area could be mapped with 4 straight lines a square or 8 straight lines an octagon Some measurement applications make it impossible to travel along straight lines If the measurement path is a simple curve such as a circle of known diameter the distance along the circumference is sufficient to determine the position of each measurement If the path is an irregular or complex curve event markers may be used to indicate when certain features along the path were rea
9. 1990 lt gt lt 406 The Data File Header The first 110 bytes of an MDX file are composed of the Data File Header with the format shown in the table below Byte 0 1 8 9 Description Unique ID identifies this file as an EMCALC Data File The value is OXAAFO hexadecimal for data files prior to EMCALC 2 1 For data files after version 2 1 the value is OXBBFO hexadecimal This allows the EMCALC analysis software to identify EMCALC Data Files Unique ID same value as byte 0 1 This contains the version number of the TTBASIC program Time set flag This field is not currently used Contains the current error code if any at time of offload Possible error codes of interest are 9 DC offset 30 10 through 17 diagnostic error 20 low battery 21 memory full 22 maximum number of Data Sets exceeded See Appendix L for a more detailed explanation Unit status at time of offload 0 normal 2 low battery 3 memory full 4 maximum number of Data Sets Number of Data Sets in the file 20 max 407 408 10 13 14 93 94 95 109 The EMDEX II uses this field to record the number of 10 ms intervals the unit has been on When the Data File is transferred to the PC the EMCALC program converts this value to the actual date the unit was turned on by using the PC s system time and the value in this field EMCALC then overwrites this field with the number of seconds sinc
10. Keep in mind that if you decide to make Xerox copies of the printed charts then you will not be able to distinguish the different components on the copies unless you make color copies To change the line styles of the chart components e Right click on the chart to display the 2D Chart Properties dialog box e Click on the ChartStyles tab The dialog box should look like the picture below 2D Chart Control Properties Ea Axes ChartStyles Titles Legend Chart rea PlotArea ChartLabels LineStyle Symbolstyle Style2 Pattern Solid v Style3 Styled iB Width f RR Styles Color AGB furroooo m Name Red ChartGroupl a Count 16 Cancel Apply Help Change to solid lines e The Pattern field controls the line style solid dashed dotted etc e The Width field controls the width of the line in pixels e The Color field sets the color of the line e There are a total of 16 styles in this chart The first four styles listed in the tree control correspond to the Resultant X Y and Z series on the chart respectively e Change Style1 Width field from 1 to 4 then press the lt Tab gt key The chart will be updated e Click on Style2 in the tree control Choose Solid from the Pattern dropdown list and change the Width to 3 The chart will be immediately updated with the new solid line 99 e Click on Style3 in the tree control Choose Solid from
11. The selected serial port must be available and must not currently be used by any other application EMCALC 2000 will display the following error message if it was not able to access the serial port An error occurred while initializing communications port Make sure no other applications are accessing the same port Close down any applications that may be using the port and confirm that you have selected the correct Port Number in the Communications tab of the Options dialog box The On Off switch should be in the ON position The word on will appear on the EMDEX LITE s LCD display If you were collecting data the Data Collection switch on the meter must be in the IDLE ENP position Do not turn the on off switch to the off position or you will lose your data The word done will appear on the EMDEX LITE s LCD display in this situation Downloading Data from an EMDEX LITE To download the data from your LITE e First make sure you have completed the EMDEX LITE Communications Checklist before proceeding e From the main menu choose Communication EMDEX LITE Download Data e You will be presented with the following dialog box EMCALC 2000 x Make sure the communications cable is plugged in the LITE s data collection switch has been tumed off and no other applications are accessing the same port before downloading the data Do not power off the LITE prior to downloading or all data will be lost
12. After all of the input data has been entered pressing the OK button will initiate the dataset conversion process A new dataset named Converted LINDA will be assigned to an Untitled Databook and it will be activated The new dataset will also be added to the bottom of the workspace tree control Depending on how you have your program options set up the Drawpath page may not be created If this is the case then right click on the Converted LINDA dataset name in the Workspace tree and choose Create Data Pages Drawpath from the context menu A Drawpath page will be added that lets you view the path that you just created You can similarly add the 3D Map and Contour Map pages For our example the Drawpath page might look like the picture below Conv ted LINDA Fe cuu rich rw o een Qe Maced iom D Datace t I CormutedLNDA Fin Cormeted URDA a 294 Appendix A 295 Fundamental Calculation Check The EMDEX II meter was originally envisioned as a meter to measure magnetic fields generated by load currents in transmission and distribution systems Measurements can be made over two frequency ranges the broadband frequency range from 40 to 800 Hz and the harmonic frequency range from 100 to 800 Hz The broadband measurement includes the fundamental power frequency of 50 60 Hz out to the 13 harmonic whereas the harmonic measurement includes only the harmonics and excludes the fundamenta
13. Lc gt e 101630 AM 1014 AM 101650 4M 101500 4M 015104M 103520 AM 101530 AM ILL Tees PEN IR 104425 AN 101532 AM E M Pech CALC Date Qack Tour 3 nib TIER iesus V arie Y Gomme X Ens Ten NN e Look at the various data pages for the group dataset by clicking on the tabs at the bottom Descriptive Order Geometric and Exposure e You will notice that the number of records in the group dataset is 106 This is the 88 combined total of all the records in Dataset 1 Dataset 2 and Dataset 3 89 View the Field vs Time Group Chart The Field vs Time chart for a group dataset is somewhat different than the other pages It does not display a chart consisting of all the dataset records combined Rather it displays each dataset in the group as a separate data series on the chart For example it will display the Resultant magnetic field for Dataset 1 Dataset 2 and Dataset 3 simultaneously This means that when each dataset contains a different number of records then the line that represents each data series will be a different length The start time for the group chart is the start time of the first dataset Dataset 1 in this case To view the group Field vs Time chart e Click on the Field vs Time tab at the bottom of the databook window to activate the chart page e Since one dataset Dataset 2 contains much higher fields than the other two it is difficult to see the
14. Quick Tour 4 Customizing a Field vs Time chart Quick Tour 5 Customizing a 3D Map chart Quick Tour 6 Making corrections to the Drawpath 30 Quick Tour 1 31 Introduction In this Quick Tour you will learn the various parts of the user interface by opening a sample data files viewing the statistics viewing some charts modifying some charts and printing some results 32 Start EMCALC 2000 To start EMCALC 2000 e From the Start menu in Windows choose Programs EMCALC 2000 then click on the EMCALC 2000 icon which looks like this uf After the splash screen is displayed the EMCALC 2000 main window will be displayed as shown below 33 Open a File Open the file Quick Tour 1 mbk located in the Data subdirectory e Select File Open from the main menu or click on the Open 3 button on the main toolbar e The Open File dialog box will be displayed e Select the Quick Tour 1 mbk file e Click on the Open button e The Databook Window will be displayed as shown below Dataset a Sheet tab olectod mide wadung bre Cargbellinn toEnesech s office domin Cobalt Databook Window 0 12 300 Tees hat 868 122607 P EMy Pac ENCALDD ata uic T cua T obl e Maximize the Databook window by clicking on the maximize button in the upper right corner of it s title bar It should look like the picture below after maximizing 34 8 g To A T 2 38 E 35 View the Events
15. Start Stop Event 1 and Event 2 These are the names of the labels automatically placed on your chart by the program e The Start and Stop entries correspond to the start time and stop time labels that always appear on the bottom left and bottom right of the chart respectively Do not modify these labels and never delete them or any labels by clicking on the Delete button NOTE never add or delete labels via this dialog box because it will prevent the program from tracking the event labels on the Events page If you want to remove a label then delete the event from the Events page e The Event 1 and Event 2 entries correspond to the first and second events respectively There will always be one event label on the chart for every event in the dataset e Select the label titled Event 2 by clicking on it in the tree You will notice that some of the other data on the dialog box changes when the Event 2 label is selected 78 In the Offset field change the number from 100 to 200 then press the lt Tab gt key This will move the label vertically up on the chart by 100 pixels or 200 pixels from the X axis The Offset field is the only field that you will most likely modify on this tab You can try playing with the following parameters Anchor Adjust Rotation IsShowing and IsConnected to see how they affect the label Never modify or click on the following Add Remove AttachMethod or Name The dialog box and chart
16. Until you have registered the software with Enertech Consultants the program will only run in demo mode While running in demo mode the software will not allow you to save files or perform communications with your EMDEX meter To install EMCALC 2000 from CD ROM e Insert the CD ROM disk labeled EMCALC 2000 into your CD ROM drive e fthe setup program does not automatically start then from the Windows Start menu click Run e Type RASETUP where R is the drive letter of your CD ROM The Setup program prompts you through the installation process Follow the instructions on the screen Network issues Due to the software protection it is not recommended that you install the EMCALC 2000 software a network drive You can save data files to a network drive and you can print to a network printer If installing on an NT 4 0 system you may need to have administrative rights in order for some files to register themselves properly Check with your system administrator if you have problems File Association The setup will associate the file extension MBK with the EMCALC 2000 program This allows you to double click on a MBK file in the Windows Explorer and it will automatically launch EMCALC 2000 If you already have a program that uses this extension then the association will be overwritten by this setup If you uninstall EMCALC 2000 the file association WILL NOT be set back to the previous program The Windows registry keys that control
17. a default chart template is used to set many of the chart attributes like line colors line styles font sizes grid marks etc The attributes for the default 2D chart template are stored in a file on your hard disk This file has the name Default2Dchart OC2 and is located in your installation directory If you want to permanently change the attributes of the default 2D chart template and thus affect all future 2D charts that are to be created then you need to modify this default chart To change the default 2D chart e First make sure the Show All Chart Edit Properties checkbox is checked on the General tab of the Options dialog box e Activate any 2D chart page such as Field vs Time or Field vs Distance e Right click on the 2D chart itself to bring up the 2D Chart Control Properties dialog box e With the Show All Chart Edit Properties box checked the 2D Chart Control Properties dialog box should look like the picture below 2D Chart Control Properties x hart rea Plot rea ChartLabels View3D Markers i Axes ChartGroups ChartStyles Titles Legend General Border Interior Image About IsBatched M IsDoubleBuffered Load Save Cancel Apply Help e Click on the Load button to display the standard Windows Open dialog box e Browse to your installation directory and select the file named Default2Dchart OC2 e Click on the Open button to load the defa
18. respectively 130 Record Types Record type indicates the type of data collected in an EMCALC dataset If the data was collected using an EMDEX II the BANDWDTH and STORAGE options on the EMDEX II determine the record type collected by the meter See the topics Setting the Frequency Response and Setting the Data Storage in Appendix D of this document If the meter is an EMDEX II running the LINDA Operating Software or an EMDEX LITE the record type is fixed Each record represents a data frame that is a single measurement taken by the meter For example if the sample rate for the meter is 1 5 seconds a data record data frame is created every 1 5 seconds Record types are important if you are attempting to group more than one datasets together and analyze them as a whole The Table below explains the different record types recognized in EMCALC 2000 Rec Data Collected Meter ord Typ e 1 Broadband resultant EMDEX II 2 Broadband resultant EMDEX II Harmonic resultant 3 Broadband resultant EMDEX II Broadband E field 4 Broadband resultant EMDEX II Harmonic resultant Broadband E field Harmonic E field 5 Broadband x y z resultant EMDEX Il EMDEX LITE 6 Broadband and EMDEX II Harmonic x y Z resultant 7 Broadband x y Z EMDEX II w LINDA resultant Distance Direction 131 132 Unit Types The unit type indicates which meter was used to collect the data A dataset s unit type can be found on the dataset properties d
19. should be selected in the Titles tree control on the left side of the dialog box e Click on the Font sub tab e Next click on the Change Font button E to the right of the font Description field This will display the standard Windows Font dialog box e Change the font size to 12 and the style to Bold then click on the OK button The chart is immediately updated with the new font size and style e Click on the OK button in the 3D Chart Control Properties dialog box e Your final screen should look like the picture below EMCALC 2000 Cops of SOD LY Line Mep De Fie Ed Ver Commancaton rok Widow telp altixi Des sr F iMG wre vest Ati sit 2 eat at Map under 500KV E 230kV Lines rr w 114 Save Changes and Exit Before exiting EMCALC 2000 save the file e Click on the Save button on the toolbar e A status message will be displayed in the status bar at the bottom of the application window The word Ready will be displayed when the file has been saved to disk Exit EMCALC 2000 e Choose File Exit from the main menu This concludes Quick Tour 5 115 Quick Tour 6 116 Introduction to Quick Tour 6 In this quick tour you will learn how to modify the path for a record type 7 data file This is data that was collected with a LINDA measurement wheel Sometimes when collecting data with the wheel a user will forget to enter a turn Rt 90 Lt 90 etc into the meter
20. 20 E 12 20 28 PM Cancel e Click DONE to commit the data e You will then be presented with a databook window that contains views of each dataset in the databook The Raw MDX file When you download data from an EMDEX II there are two files that get saved to your hard drive one is the EMCALC 2000 databook file MBK extension and the other is an EMCALC 95 data file MDX extension However any changes and editing done in EMCALC 2000 will not be reflected in the MDX file The MDX file is saved only for use with EMCALC 95 or as a backup in case the MBK file gets destroyed or corrupted The Save As dialog box checks for the prior existence of the MDX file and will ask if you wish to replace the MDX file or both the MBK and MDX files if both exist accordingly EMCALC 2000 updates the MDX file with the Start Time and Descriptions that were entered on the Download Information dialog box The Descriptions that are saved to the MDX file are truncated to 30 characters to be compatible with EMCALC 95 EMCALC 2000 can open MDX files directly from the File Open dialog box 180 Uploading a Program to an EMDEX II Sometimes it is necessary to override the default operating program that is burned into your EMDEX Il s Erasable Programmable Read Only Memory EPROM This could occur if you have the Standard operating program in your meter and you want to use the LINDA wheel In this case you need to upload the LINDA operating
21. 341 EMDEX Il Frequency Response Frequency response is defined as the change in response of the EMDEX II to signals of different frequencies Frequency response can be thought of as the sensitivity of the meter to signals within a certain frequency range The EMDEX II is calibrated to measure 60 or 50 Hz electric and magnetic fields using two software selectable frequency bands Broadband ranging from 40 800 Hz and Harmonic which is sensitive to 100 800 Hz fields The strongest power frequency magnetic and electric fields are typically at the main transmission frequency of 50 or 60 Hz called the fundamental Harmonic signals can occur at integral multiples of the fundamental For example a fundamental at 60 Hz has harmonics at 120 Hz 180 Hz 240 Hz and so on A field with strong harmonic components will show strengths in the harmonic band almost as high as broadband If the fundamental frequency is predominant the harmonic band will have low readings relative to the broadband The 50 or 60 Hz fundamental is not directly measured by the EMDEX II but is calculated from the harmonic and broadband measurements If a field is dominated by harmonic frequencies the value calculated for the fundamental frequency by EMCALC may be in error by a significant amount See Appendix A for a detailed discussion of the Fundamental Calculation Check 342 EMDEX Il Broadband Frequency Response 40 800 Hz Magnetic fields in the frequency band from 4
22. 6 7 A D Broadband resultant in digital units 8 9 Total number of LINDA wheel strobes since the beginning of the data set 10 11 Azimuth reading in degrees from reference direction 12 Key byte Bit 0 Event mark O no 1 yes 1 2 Scale factor 3 4 Not used 5 Bad data flag 6 7 Not used 13 Reserved 420 Index 2 2D Charts area iio 280 3 O A T A E A E N nals 281 A Abbreviations ime NEA 23 ACCESSING Helps deii de daa ee e EE erbe e ER MR AREE ER EIN AR MARRE RERO sae onde 29 Acknowledgements 5 aia 11 Activating a Dataset Sheet 5t cnet iia 155 Addam Eventi tinta ie 216 Adding Data PAGS sci ie o itae a HEHE 173 Adjust Event Label Locations 3 iia 79 AMPLO JI Hr T IP RR e RUDI IN ORUM 19 Amp Logger Frequency Response sssssssseee eene nene 396 Amp Logger Hardware Specifications ene 395 ASCII Data Page nete uenientem aite ARR p E ee 233 Attaching the EMDEX II to the LINDA Measurement Wheel seemmm 365 B Backward Coripatibility coo ini 4 e Ee RR PO GER a 21 Basic Operation of the EMDEX ll ssesssesee nemen ener nnne nnne 317 Before you Begin Special Operating Considerations sssseseeee ee 387 Bir Definitions Tab iii pe RE LR ee Here 207 C Calculation Check Data Page sss nennen rn 230 Change EMDEX Il Parameters u ae een ne BR rena dena 188 Change EMDEX LITE ParametefS cibis isabit esaii nnrir aRa
23. ASCII from the context menu Or e Click on the databook name in the workspace window tree activating the databook window e Select File Export to ASCII from the main menu Then e You are then presented with the standard Windows Save As dialog box Use this dialog box to browse to the directory in which you wish to save the ASCII file and enter the name of the ASCII file e When finished click the Save button e You will be prompted for a filename for every dataset in the databook 149 Databook Properties To view or change the databook properties e Right click on the databook name in the workspace window tree e Choose Properties from the context menu e The Databook Properties dialog box will be displayed as shown below e Make any necessary changes and click on the OK button Databook Properties x File Record Type 3 Sample Data mbk Author Eimer M Fields Company Enertech Consultants Comments This data was collected in the lab for testing purposes only zi Cancel e Author This field should be automatically filled with the name of the registered user You can enter a new name if desired e Company This field should be automatically filled with the name of the company of the registered user You can enter a new name if desired Comments Enter any comments pertinent to the databook This field does not auto wrap so you will need to manually enter carriage returns by pressing the lt Enter
24. Bandwidth Broadband y Display Reus m Op Mode Noma El Sample Rate fs Ff sec Cancel The options for Storage are Resultant Resultant and XYZ Axes and Resultant and E Channel The options for Bandwidth are Broadband and Broadband and Harmonic The options for Display are Resultant Single Axis Electric Field and Battery The options for Operation Mode are Normal and Survey The Sample Rate can range from 1 5 to a maximum of 327 seconds between each measurement reading You can type in a specific value or select one of the more common sample rates from the drop down list Make your selections and click the OK button EMCALC 2000 takes almost no time at all to update the meter parameters and displays the message Successfully uploaded EMDEX Il meter parameters You are now ready to collect data using the new parameters that you selected 185 EMDEX LITE Communications Checklist Before attempting any communications with your EMDEX LITE meter you should go over the following checklist and make sure everything has been set up properly To setup the communications for your EMDEX LITE 186 Make sure that you have the correct cable attached to the serial port of your computer and that it is securely plugged into the EMDEX LITE meter from which you will be downloading or uploading This procedure is described in the topic titled Connect the Serial Cable in Quick Tour 2 of this document
25. EMDEX II and your computer you must ensure that EMCALC 2000 knows which COM port is attached to the communications cable You set this up in the Options dialog box If it is not already running start EMCALC 2000 Click on the Options icon on the toolbar to display the Options dialog box Click on the Communication tab Make sure that the Port Number setting matches the COM port to which the EMDEX II Communications cable was attached If you attached the cable to COM 1 then select the port number COM1 from the drop down list box If you attached it to COM 2 then select the port number COM2 from the drop down list box Also make sure the Open file after downloading and Parse real time data check boxes are checked The dialog box looks similar to the picture below Broadband Resultant 4 seconds BOWSER 65 Start Real Time Monitoring We will now look at the data as it is collected and stored on the EMDEX Il To do this e Click on the Toggle Real Time Monitor button on the toolbar e The Real Time monitor window will be displayed at the bottom of the screen You will notice that rows of data will be added to the window each time the EMDEX II takes a measurement e The window will look similar to the picture below 192 IBrcachend ban D Y Real Time Moniter at COM 1 The columns are described as follows Bandwidth the filter that was used to collect the data record This c
26. Enter the text Quick Tour 3 with Group Dataset in the File name field Click on the Save button A status message will be displayed in the status bar at the bottom of the application window The word Ready will be displayed when the file has been saved to disk You will notice that the name of the databook has changed to Quick Tour 3 with Group Dataset in the application title bar and on the tree control Close the databook by first activating the databook window and then choosing File Close from the main menu Another way to close the databook is to right click on the databook icon named Quick Tour 3 with Group Dataset in the Workspace window and then choosing Close from the context menu Exit EMCALC 2000 Choose File Exit from the main menu This concludes Quick Tour 3 92 Quick Tour 4 93 Introduction to Quick Tour 4 In this quick tour you will learn some advanced charting techniques that enable you to customize the look of your 2D charts The techniques learned in this Quick Tour can be used on both Field vs Time and Field vs Distance charts You will learn how to do the following e Change the appearance of the chart header and footer e Change the color and style of the lines for the chart series e Change the appearance of the Y axis 94 Open the File e If EMCALC 2000 is not already running then start it e Open the file named Fields from Laser Printer mbk located in the Sa
27. External Probe is set to E Probe EMCALC 2000 x CAUTION Electric field measurements require that there is no electrical connection to the meter during the measurement Le no cables are plugged in This makes real time monitoring of electric fields very unreliable We recommend recording electric field measurements with an E Probe and then downloading the data Cancel e Whenever the RTM window is closed real time monitoring stops Thus deselecting the View gt Real Time Monitor menu item will not only close the real time monitor window it will also stop the data monitoring e Data is cleared from the real time monitor window whenever you start monitoring You can still view and hide the data after stopping real time monitoring by toggling the View gt Real Time Monitor menu item which will simply toggles the real time monitor window starting real time monitoring 195 Program Options 196 Global Options Global Options consist of a General Tab a Units Calibration Tab a Bin Definitions Tab a Charts Tab and a Communications Tab Global Options will be applied to all new databooks and all MDX and LTE files opened in EMCALC 2000 Once a databook is created each dataset within the databook will have its own set of options called Dataset Properties Global Options can be view modified by e Selecting Tools Options in the main menu Or e Clicking on the Options button on the toolbar e The Options dialog box sh
28. Measure ard LITE ment Accuracy 0 01 70 0 G e 0 1 8 calibrated 700 mG frequency 8 355 356 of 50 60 Hz 27 C Measure ment Method Operating Program Power Maximum Sample Rate Temperat ure Errors Real Time Clock Duration of Data Memory True RMS measurement Residing in EEPROM Memory Standard 9 Volt battery 4 Seconds 3 per 10 C in range of 0 50 C Maintains elapsed time for 30 days after data collection has stopped With unit in IDLE mode data can be maintained in memory up to 200 days with an alkaline 9V battery EMDEX LITE Frequency Response The figure below plots the frequency response of the EMDEX LITE Unlike the EMDEX Il the LITE does not have a harmonic bandpass option Normalized Signal Strength 1 10 100 1000 10000 Frequency Hertz 357 Appendix F 358 Using the LINDA Wheel The LINDA Measurement Wheel shown in the figure below is an accessory to the EMDEX II meter which enables the EMDEX II to make magnetic field and location measurements The data collected with the LINDA wheel can be displayed in EMCALC 2000 as Field vs Distance 3D Map or Contour Map A special program the LINDA Internal Operating Program must be running on the EMDEX II to use the LINDA System The LINDA Internal Operating Program normally must be transferred from your PC to the EMDEX II each time the EMDEX II is turned on However the LINDA program can be permanently bu
29. Previous Zoom and Reset Zoom buttons are also activated on the toolbar You can keep zooming in on the data until there is a minimum of 3 data records displayed on the chart or until a maximum of 20 zoom levels have been created At that point defining a new zoom window will not change the chart Click on the Previous Zoom button to go back one zoom level Click on the Reset Zoom to reset the zoom level back to the entire data set 263 Field vs Time 264 What is a Field vs Time chart A Field vs Time chart is a plot of field quantity such as magnetic field resultant against time The field intensity i e milligauss is plotted on the vertical Y axis and time is plotted on the horizontal X axis Only record types 1 through 6 can be displayed as a Field vs Time chart The picture below shows an example of a Field vs Time chart Kb pe Eat Yew Commesca on Lock Winde tile i aizi zi josu se st leioo erre ir mal ee j Dv Sn Sastean Hot Rovs Bosmana Pesuttant i t E z 265 The Field vs Time Toolbar The active buttons on the Field vs Time chart toolbar are described below Depending on the record type certain buttons may be disabled show hide the X component of the magnetic field show hide the Y component of the magnetic field show hide the Z component of the magnetic field show hide the Resultant magnetic field show hide the E field component show hide the Broadband filter data for all the vis
30. Re ioter tee 33 Open a E1e s ette tH DE Ee cono e e a 34 View the Events Page deo dedere ehren 36 View the Descriptive Statistics sssssssssssseene 37 View the Order Statistics eeesssssssssssseen emen 38 View the Geometric StatiStiCS oooononnonnionncnnnnnnnnocononnccncnncnnnnrnnoncnnnnnnnnnnnnnnnno 39 View the Exposure Time Statistics ssssssssssseeeeneeees 40 View the Field vs Time Chart sssssssssseeeemeeenenes 41 ZOOM the Chat on tai a a eroa e a 43 Cursor Read QUt nun Ore I E teres te iR 45 Print the Chat ed ote a IG PO IN PO dere ee e lan 47 Printthe Event Lista uu iier erem am ern 49 Open Another FIle rer eee eto ale nannten 50 View the DrawPath Page sssssssseeeeenm emnes 52 Create a 3 D Map zie eni ree alien I MAD men 54 Create a Contour Map sss enne 56 Change the Contours to Zones ssssssssse eee 58 Save the File and EXIt a tt ita 59 Quick Tour 2 60 Introduction to Quick Tour 2 eene 61 Start Data Collection reed 62 Connect the Serial Cable ooooononniciccnnnncininnococcccconccocnnononcnnncnnnnnannrnoncnnnnnnnnnnns 63 Sethe COM Port enm ici 65 Start Real Time Monitoring seen 66 Resize the Real Time Monitor Window ccceceeeeeeeeeeeeecaeeeeeeeeeeeenaees 68 Testitlie Meter ono tt data 69 Mark ain Event een er ot Oeo tert teres dde ee ded 7
31. The Convert Dataset dialog box will appear as shown in the figure below Convert Dataset Ed Source Dataset Dataset Dataset 1 Dataset Number 1 Cancel Number of Events 8 New Dataset Distance Units Fest Scale 1m Event Record Resultant ms x Y m 1 j e The source dataset used for the conversion is presented at the top of the screen along with the dataset number and the number of event markers within the dataset e The Distance Units Feet or Meters are used to map the X and Y coordinate values e The Scale factor is a multiplier that is uniformly applied to the coordinate values that you will enter for each event marker later on For example if the Distance Units were values taken directly from a 1 4 scale blueprint without converting from 293 EMCALC 2000 the 1 4 scale then a scaling factor of 4 could be entered here to convert all of the coordinate data to the actual full scale values For our example and in most cases a scaling factor of 1 would be correct At the bottom of the screen an event marker table is presented which lists each event marker recorded in the dataset along with the associated record number and Resultant magnetic field value The X and Y coordinate values for each event marker are input next For our example these coordinate values would be the values listed in the table shown previously
32. While still holding down the left mouse button drag the mouse cursor horizontally across the chart until it is just to the right of the large spike in the data just after the event titled Crossing Dillon Ave You will see a black Zoom box drawn as you move the mouse It will look like the picture below JM E Maik Dernier E e Quick Tour 1 Data collected while walking hom Campbell Inn Walk Downtown to Enertech s office in downtown Campbell Under Dietribatica Lie Broadband Resultant al Er ca qoa taber 4 4 k 5 3 Under 16k Tower Comer hg Din Ase Magnetic Field mG 1230 PM 23 1240 PM Ju4m17 19399 JULO1 rr 999 1228 07 PM 12 40 52 PM E My Progects EMCALC Data Quick Tour 1 mbk E NME 2 Let up on the left mouse button The chart will be redrawn to display only those records that fell within the zoom window It should look similar to the picture below It may not look exactly like the picture below since you may not have zoomed in on the same data which was used to make the screen shot below 43 a T amp Q amp Quick Tour 1 Data collected while waking hom Campbell Inn 8 Walk Downtown lo Enertech s office in downtown Campbell 70 60 50 40 30 o u i 1233 PM 12 34 PM 12 35 PM 12 36 PM Tire 4011999 Jui0t 1999 12 32 34 PM 12 36 16 PM E My Progects EMCALC Data Quick Tour 1 mbk Notice that the start and stop time labels
33. Xow e S and We respectively 222 Exposure Time Data Page Exposure time integral data page displays all exposure information for all measurement quantities which may be present in the dataset For example the EMDEX II may have been set up to collect harmonic as well as broadband measurements Therefore in this example both broadband and harmonic exposure statistics would be available on this data page and can be seen by simply scrolling the view down At the bottom of each measurement you will see one row which contains the exposure time integral total If printed or copied all measurement quantities on the data page will be selected at once EMCALC 2000 Hecord Type 5 Sarge Data Rh Ein Eee Ye Greater Tonk Since Line aigixi Desu gt r at m on D File E My PerfectiEMCA C Dab9iecond Tae 5 Sano Data mik Ol Deme Descnip on Working n ofice at computer 2 PRecad Type 24 t Dotecet Number 1 M Owtnostt Start T me Oc902 1 992 03 37 58 AM 0 Oak lar Biop Time Orv 932 03 59 45 PM a Web Demum v Number of Records 8836 Pecad fps 5 Sarge t 1a al D n Sampie Rate 30 seconds Bin Type Liceo Total Biss 5 000 moe 14 043 005 005 006 000 000 000 000 001 000 000 Yo 4 t 5 0 0 0 nan 000 000 002 1102 i004 X Y RAT i 0 The exposure time integral X is calculated using the equation where f is the magnetic or electric field resultant AT isthe sample time and N is the number of measuremen
34. Z axis data do not rotate the meter at each turn or the X and Z axes will be interchanged Upon reaching the stopping point press the EVENT button to denote the stopping location and terminate data collection The picture below presents a typical room layout with a sample measurement path and X amp Y coordinate values 290 Mark an event at every turn Be sure to mark events at the start and end of data collection and every time you make a turn Data records collected prior to the first event marker are discarded in the EMDEX II to LINDA dataset conversion process since the program identifies the first event marker as the starting location Similarly data records collected after the last event marker are also discarded in the EMDEX II to LINDA dataset conversion process since the program identifies the last event marker the stopping location Placement of event markers is very important because the conversion process will only create a LINDA dataset if it can find event markers in the original dataset If you should happen to accidentally miss recording an event marker or perhaps get a double event marker at the same location then you should use the add edit delete event marker features within the event data page to add missing event markers or delete any erroneous event markers The sample room is 16 feet long by 8 feet wide with a doorway at the upper left hand corner The sample measurement path begins near the doorway at event marke
35. an average reading of 0 04 mG with occasional peak readings of 0 3 mG It is difficult to precisely specify the performance of an instrument with regard to readings generated by motion in the earth s field since the performance of the instrument is dependent on the behavior of the subject wearing it Generally minimal errors will be caused by the geomagnetic field However if the orientation of the meter rapidly changes with respect to the geomagnetic field e g while mounted on a spinning bicycle wheel a significant earth s field reading might be generated 404 Appendix K 405 MDX File Description In addition to databooks a file with a MBK extension EMCALC 2000 creates a file with a MDX extension whenever you download data from an EMDEX II meter This file contains the raw data that was in the EMDEX II meter This MDX is compatible with older versions of EMCALC versions 95 and 2 x The MDX file is divided into 3 main areas Data File Header Data Set Headers and Data Records A pictorial description of the file layout is shown in the figure below The first Dataset has 2 500 records and the second Data Set contains 1 990 records gt Data File Data Set 1 Data Data Data i Header Header Record Record Record i i i 1 i 2 3 gt lt gt lt Data Data Set 42 Data Data Data Record Header Record Record Record 42500 i 1 i 2 i
36. being collected with your EMDEX meter For more detailed information about using this window see the Real Time Monitoring topic in the Communications section of this manual 139 Databooks 140 Databook Files A Databook is equivalent to a document or file used by EMCALC 2000 The new files which will reside on your hard drive have a MBK extension and can contain an unlimited number of datasets Downloading data from an EMDEX II meter will create two files a raw data file MDX extension and a databook file MBK extension When you save a file in EMCALC 2000 it will a ways save changes to the databook MBK file Therefore no changes will be saved to the MDX file The same is true for downloading data from an EMDEX LITE Two files will be created a raw data file LTE extension and a databook file MBK extension As with the MDX files no customizations made through EMCALC 2000 will be saved back to the LTE file therefore the LTE file will remain in its initial state after download Both the MDX and LTE files created by previous versions of EMCALC EMCALC 95 or by downloading data in EMCALC 2000 can be read by EMCALC 2000 and converted into MBK files Likewise MDX and LTE files created by EMCALC 2000 after downloading data can be read by the previous version of EMCALC EMCALC 95 Extension Created By Description MBK EMCALC 2000 Data file saved in EMCALC 2000 MDX BTE eb Data file transferred from the EMDEX I
37. change to all open datasets use the global options under Tools Options in the main menu To view modify the Dataset Properties e Right click on the dataset name in the workspace window tree e Choose Properties from the context menu e Dataset Properties dialog box will be displayed e Make any necessary changes and click on the OK button Dataset Properties Ea Dataset Properties Units Calibration Bin Definitions Charts Databook Point Source Dataset Description n electric fan and a field generation coi Start Time 3 21 24 PM Ed Stop Time Jul 08 1831 03 24 36 PM Record Type 7 Number of Records 123 Sample Rate 1 5 sec Number of Events 0 Unit Type LINDA 1 Cancel Apply 163 The Dataset Properties Tab on this dialog box is unique Its fields are described below Databook contains the full path name of the databook file MBK that this dataset belongs to Dataset is the name of the dataset This text is used for the name of the dataset sheet tab so it is usually a good idea to keep this to a short name Use the Description field below for a longer description of the dataset Description can be used to enter some text that describes the dataset This text is used as the Header for the charts and is also displayed in the header portion of all the spreadsheet pages This field does not auto wrap so you will need to manually enter carriage returns by
38. charts that are much nicer looking e Plot multiple parameters X Y Z and Resultant on a single chart e Plot multiple datasets on a single chart e Greater flexibility in customizing the look of charts e Add annotations event descriptions to the charts e Add descriptions to event marks e Copy data from spreadsheets or charts into the Windows clipboard e A Real Time Monitoring window now displays actual data mG or uT rather than internal units e Progress bar is displayed while downloading data from a meter e Include or exclude the addition of the half binwidth to every data point e Parameters such as magnetic field units electric field units calibration constants are now stored in the data files EMCALC 2000 does not contain the following features that were part of previous versions of EMCALC 95 e Multi page printouts of charts e Cumulative Distribution chart e Histogram chart of exposure e Intermittency chart and statistics e Aggregated files e Merged files e Concatenated files e Special Analysis files e Converting EMDEX 1 x files e Converting old EMDEX i e DATACALC files e Batch processing 12 NOTE you can still perform some of the file operations Concatenate Aggregate and Convert in EMCALC 95 then use the new EMCALC 2000 program to open the MDX file that was generated Also any data that was downloaded with EMCALC 2000 can be opened by EMCALC 95 However you need to open the
39. check statistics to EMCALC 2000 you must not add half bin width to the EMCALC 2000 results To do this see the Units Calibration Tab topic in the Global Options section of this document 226 ASCII ASCII Data Page The ASCII data page allows you to view all the data collected in its raw form This data page is not created by default The option to create the ASCII data page is located in the Global Options General Tab Once the databook has been opened you can also create the ASCII views by right clicking on the dataset name in the workspace tree control and selecting Create ASCII View from the context menu The ASCII data page can be copied and printed in the same way as all other data pages Exporting the data to ASCII files or copying the ASCII data page to the clipboard to paste into other commercial software packages allows you to review and analyze the individual measurements and run further tests on the data which are not implemented in EMCALC 2000 The figures below show sample output of an ASCII data page The ASCII data page is composed of an upper section presenting the dataset header information and a lower section showing the content of the individual measurements You can use the vertical scroll bar on the right side of the data page to scroll through the data You can use the horizontal scroll bar to view data that is off the screen in the horizontal direction ASCII Data Page header section File E Uy PectecteL EMCAL CID
40. click on the Apply button The chart is updated so that the maximum value on the Y axis is now 5 5 milligauss instead of 6 e Click on the right arrow o button until the Axis Grid Lines tab is visible e Click on the Axis Grid Lines tab to activate it e Change the Gridlines Spacing from 1 to 0 5 then click on the Apply button The chart is updated so that there is now a grid line at every 5 milligauss tick mark on the Y axis e Click on the right arrow D button until the GridStyles tab is visible e Click on the GridStyles tab to activate it e Change the pattern to Solid The chart will be immediately updated e Click on the OK button Your chart should look like the picture below 101 3 5 102 Print the New Field vs Time Chart Now you can get a printout of the new chart that you just customized e Click on the Print button on the toolbar to bring up the Print dialog box ett Packard LaserJet 5P e Make sure the printer that you want to send the chart to is currently selected in the Name field under the Printer heading If not then choose the correct printer from the drop down list box e Click on the OK button e A status message will be displayed indicating that the chart was sent to the printer e Retrieve the printout from your printer 103 Save the Changes and Exit the Application Before exiting EMCALC 2000 save the file e Click on the
41. contour line will be updated on the chart immediately There are three fields on this tab that let you change the color of a Style The RGB field define the amount of Red Green and Blue color to mix in order to come up with a new color only geeky programmers know what this hexadecimal number means so it is not recommended that you use this field The Name field can be used to select from about a hundred different predefined colors however you cannot see the color until after you have selected it The preferred method of choosing a color is to click on the color button to the right of the RGB field This displays the standard Windows Color dialog box that lets you see the colors that you choose Click on the color button to display the Color dialog box The currently selected color is highlighted in the pallet box and is displayed in the Color Solid field It looks like the picture below Color Basic colors Click Here 7 to Select Red m EEEH E ES EN ES ON NND E A EE EEE BT Custom colors BEE Bea ee BEE BE ff Define Custom Lolos gt gt Cancel Currently Selected Color Hue 40 Red 255 Sat 240 Green 255 ololSolid um EJ Blue T Add to Custom Colors e To select a new color click on the colored square that contains the color you want then click on the OK button e The portion of the 3D Map that you modified will be repainted using the new color e Click the OK button on th
42. created The Group page will only be created if all the datasets in the databook contain the same data types record type sample rate and unit type Show Startup Screen indicates whether the EMCALC 2000 startup screen and sound should be displayed Show All Chart Edit Properties specifies whether to show all tabs on the 2D and 3D Chart Properties dialog boxes that are displayed when you right click on a chart data page This will give you some advanced customization options for the charts 200 Units Calibration Tab The Units Calibration tab allows you to set magnetic units external probe distance units the wheel calibration constant and maximum allowable error which is used in the calculation check data page You can also check whether to include saturated data and whether or not to add a half bin width to each data point Options x General Units Calibration Bin Definitions Charts Communication Amperes Electrical Units Distance Units Feet te Wheel Calibration Constant 1 ft Maximum Error in Fundamental Calculation 20 zx v Include Saturated Data Add Half Bin width Field Value Precision 2 E Apply Cancel Magnetic Units can be set to milliGauss mG or microTesla uT External Probe can be set to Amp Logger 50 Hz E Probe 60 Hz E Probe or Other if you have an external probe that is not in the list Electric Calibration Constant is a characteristic of the elec
43. downloading and allows you to watch the data as the program is processing it from the meter Both the Workspace window and the Real Time Monitor window can be toggled on and off using the corresponding toolbar buttons and 5 They can also be controlled by the main menu options View Workspace and View Real Time Monitor respectively Combined these three windows allow for easy viewing and manipulating of the statistical analyses charts and maps of the magnetic field data collected with your EMDEX meters The picture below shows the various parts of the EMCALC 2000 application EMCALC 2000 Plecord Type 3 Sampke Data ern Et mw oammanca on Jook Window tjsp naug eeatimirc Jai 3 EMDEN Fins a 2 Qh Rend Type 3 Sample C IC Record pps 1 Sample C pxcectterci feiert Ervectard E Component 0 Oty oa CL CO s facorz Type 2 Sarpi Tata nib A Eve A brin J rie J eundi J Een Tere tite twee Workspace Real Time Monitor Window Window 134 Databook Window 135 Workspace Window At the top of the tree is the EMDEX Files folder This contains all the databook files that are currently open in EMCALC 2000 Each databook is identified with a book icon e Below each databook the tree lists all the datasets that are defined within the databook Each dataset is identified by a dataset icon a The items in the tree behave in much the same way as they do in the Microsoft Windows 95 explorer
44. ff C MetaFile Use True Type Fonts Select Max Rows Cols 50 E Show Event Markers determines whether data points which were marked with an event marker are initially designated on the Drawpath map and chart displays You can also control this on a chart by chart basis from the main toolbar Scale X and Y Axes Equally allows you to set the x and y axes to the same scale or allow EMCALC to modify the scales of the two axes so the Drawpath 3D and Contour Maps fills the screen This option is helpful if one dimension of the data path is especially elongated or narrow compared to the other 205 Titles specify which information will be included on hardcopy printouts of the Drawpath and chart displays Origin Coordinates specifies the coordinate values for the origin lower left corner of the Drawpath data page There are three Origin Coordinate choices available Relative Values The origin coordinates are set to the relative distance values as recorded by the EMDEX II and LINDA during the measurement session The starting point is referenced as 0 0 and relative distances are measured from that starting point 0 0 The origin coordinates are set to X 0 and Y 0 User Defined Values The origin coordinates that have been specified by the user Format can be Bitmap or Metafile Bitmap Charts are printed and copied to clipboard in bitmap format Metafile Charts are printed and copied to clipboard in Win
45. gt key on your keyboard The data in this field is not used anywhere in the program but is only for the users clarification of the data 150 Datasets 151 Datasets An EMCALC 2000 databook is composed of 1 or more datasets Each dataset represents a measurement session with an EMDEX Il or EMDEX LITE where the user started and ended the measurement session The EMDEX II can be started and stopped up to 20 times before the data must be transferred to the PC The EMDEX LITE is capable of storing only one dataset When the data is transferred to EMCALC each dataset can be identified with a dataset description and tab ID All datasets in an open databook are listed in the Workspace window below their corresponding databook Also as stated earlier each dataset in a databook corresponds to a dataset sheet or top tab in the databook window 152 Activating a Dataset Sheet To activate or view the dataset sheet for a given dataset within a databook e Click on the dataset name in the Workspace window tree Or e Select the corresponding dataset tab at the top of the Databook window The dataset sheet will be activated and the dataset name on the Workspace tree will be highlighted Click on one of Click on one of the dataset f the dataset names in the tabs to activate Workspace it s datasheet Window to activate it s datasheet f n 323 9 100 Hecord Type 5 Sarde Data D dioses MOE X y bte La von Daumen Vaf Viren to
46. i Cancel e When everything is ready to begin downloading click the OK button Canceling at this point will return you to EMCALC 2000 without trying to communicate with the meter e EMCALC 2000 will attempt to open the port If the port is unavailable and cannot be opened for some reason you will be prompted with the following dialog box allowing you to retry after you have corrected the cause of the communications failure EMCALC 2000 x x Could not communicate with the EMDEX The problem can be one of the following The EMDEX is not tumed on The EMDEX cable is not plugged in properly The COM port specified in the setup is incorrect Please check these conditions before proceeding Cancel e If the port was opened successfully EMCALC 2000 will prompt you with a Save As dialog box where you can type the filename to which the downloaded data will be saved Type in any valid filename up to 256 characters An extension of MBK will be automatically appended to the filename e Once you click the OK button EMCALC 2000 will check that the entered filename doesn t already exist that you re not trying to save to a read only disk and that it contains only valid characters valid characters are letters numbers a space and underscore characters EMCALC 2000 will then establish communications with the EMDEX LITE meter and begin to download the data The EMDEX LITE meter 187 will display ready on it
47. in Relative mode e Bring the LINDA Wheel to a complete stop This automatically halts the measurements e Press the lt gt or lt gt button on the EMDEX II until TURN appears on the EMDEX Il display This is followed by a 0 e Toggle using the lt gt or lt gt buttons until the desired direction indicator appears on the display Lt 45 45 turn to the left Lt 90 90 turn to the left Lt 135 135 turn to the left 180 Reverse direction Rt 45 45 turn to the right Rt 90 90 turn to the right Rt 135 135 turn to the right e This corresponds to directions shown in the figure below e When the correct direction indicator appears start walking in the new direction The measurements automatically resume 368 Gurrent Direction 180 Right 90 Right 369 Starting Data Collection with LINDA With the LINDA program loaded into your EMDEX II it will only collect data while the LINDA Measurement Wheel is in motion Therefore the EMDEX II is not making measurements while you are trying to enter direction changes into the unit That way you only get the data you are really interested in Follow these steps to begin making LINDA measurements with your EMDEX Il 370 Set the desired measurement options described in Setting Measurement Options on page Error Bookmark not defined The OP MODE option must be set to normal in order for the meter to collect data Select the RUN option Press the EVENT butto
48. increases to about 5096 Therefore we recommend making electric field measurements separately from magnetic field measurements in order to maintain the accuracy of the magnetic field measurements without shielding interference from the E Probe s plates 398 Appendix I 399 The Magnetic Field Resultant Calculation and Polarization Although the EMDEX II and LITE measure each magnetic field axis separately both meters support an option where a single combined reading is calculated that reflects the strength of the magnetic field This value called the resultant amp is defined to be where Bi By and B are the Y and Z vector components of the magnetic field respectively The resultant value reflects the strength of the broadband 40 800 Hz or harmonic 100 800 Hz fields depending on the selected frequency response of the meter the EMDEX LITE measures only the broadband frequencies The magnitude and direction of AC magnetic and electric fields constantly change and are typically represented at a point in space by a vector whose direction represents the direction of the field and whose length represents its magnitude This vector representing the changing magnitude and direction of a magnetic field would appear to rotate around the point in space and follow an outline of an ellipse with a major axis of M mG and a minor axis of m mG see the figure below Such a field said to be elliptically polarized is typic
49. it begins to take data within 20 seconds of turning it on e Make sure the unit is in the OFF position for at least 10 seconds before powering the LITE ON Otherwise the unit may not work properly e The LCD on the LITE displays on when it is ready to collect data e When you want to begin the measurement session slide the Data Collect switch to the Data Collect position e The unit will momentarily display LIF and display the percentage of usable power left in the 9 volt battery the battery life is not displayed if the magnetic field resultant is selected as the LCD display option e The display on the LCD depends on the display option programmed in the unit e fthe display option is set to Resultant the magnetic field resultant is shown using the selected system of units e Ifthe display option is set to x y z Axes the LCD cycles through a display of the x y and z field components There is a noticeably longer pause after the z component to indicate which axis is on the display e Ifthe display option is set to No Display dAtA flashes on the LCD at a rate equal to the sample rate e The unit continues to take data until its memory fills you slide the Data Collect switch to the dle End position or until the battery voltage becomes too low donE is displayed on the LCD when the unit is in the dle End mode The data remains in the LITE s memory until you turn the unit off Note You will not be able to use the unit for ano
50. lo Enenech s office in downtown Campbell 50 40 Broadband Resultant dots hg Can poe Ba Kit gOdnai we Magnetic Field mG Vader 16k Tower 30 1230 PM 1235 PM 1240 PM Ju 0111 999 JULO1 A 999 1228 07 PM 12 40 52 PM E My Progects EMCALC Data Quick Tour 1 mbk e The Field vs Time chart is simply what its name implies It is an X Y chart that contains time data along the X axis and field data along the Y axis e You will notice that each event is marked on the chart and its description is displayed e The start and stop times of the dataset are labeled at the left and right edges of the X axis respectively e The Chart toolbar contains certain buttons that are enabled and disabled The only aR buttons that are enabled are the Resultant Broadband and Event Mark buttons mi This is because only Broadband Resultant data was collected when this dataset was created 41 42 Zoom the Chart Many times there are so many records in a dataset that it is difficult to really see what is going on with the chart You may want to Zoom In or expand a section of the chart You can do this by simply clicking and dragging a Zoom Window directly on the chart To do this EMCALC 2000 Quick Tour 1 1 Ele Edt View Communication Tools Window Help la xj Dag eet emona E eE ee eR Click and hold down the left mouse button just to the left of the event titled Crossing Campbell Ave
51. magnetic field occurring at 60 Hz or 50 Hz depending on the calibration of the meter is called the fundamental The fundamental is not directly measured by the EMDEX II but is calculated from the broadband and harmonic values Harmonic The EMDEX II can measure the magnetic field occurring at frequencies between 40 800 Hz and 100 800 Hz The 100 800 Hz range is called the harmonic bandwidth The ability of the EMDEX II to record the harmonic bandwidth is a user specified option see the topic Setting the Frequency Response in Appendix D Fundamental The EMDEX II can measure the magnetic field occurring at frequencies between 40 800 Hz and 100 800 Hz The 100 800 Hz range is called the harmonic The 40 800 Hz range is called the broadband The magnetic field occurring at 60 Hz or 50 Hz depending on the calibration of the meter is called the fundamental The fundamental is not directly measured by the EMDEX II but is calculated from the broadband and harmonic values There are certain conditions under which the fundamental displayed by the EMCALC screens may be in error by more than 1096 These conditions are described in Appendix A of the document Resultant The resultant Br is a scalar quantity derived from the magnitude of the three sensor readings taken from the EMDEX Il and EMDEX LITE It is defined as B B B B 129 where B 5 By and B are the magnitude of the field in the direction of the x y and z sensors
52. measurements Options resultnt Magnetic field resultant X chanel Magnetic field x axis component E chanel Electric field sensor current in pA Battery Percent usable battery voltage Displays miscellaneous EMDEX II status quantities bat lt gt remaining usable battery voltage type n Unit type O Standard 7 High Field mem lt gt remaining data memory ver program version number lt n gt K RAM Total available data memory in Kbytes units lt u gt Units of Magnetic field flux mG milligauss G Gauss uT microtesla mT millitesla Changing the Battery on the EMDEX II Do not run the battery lower than 2596 of its usable charge We recommend that the battery be changed if it reads lower than 4096 You can check the charge on the battery when the unit is turned on the LCD momentarily displays the amount of usable charge left on the battery or you may check the battery life using the STATUS option Replace batteries reading 25 or lower When in doubt replace the battery with a fresh 9 volt alkaline or lithium battery Important Transfer any data in the meter to the PC before changing the battery or you will lose your data To change the batteries e Remove the battery cover on the meter exposing the battery compartment communications jack and ON OFF switch e Turn the EMDEX II off e Unhook the old battery if present and replace it with a fresh 9 volt alkaline or lithium battery See the picture b
53. number means so it is not recommended that you use this field The Name field can be used to select from about a hundred different predefined colors however you cannot see the color until after you have selected it The preferred method of choosing a color is to click on the color button to the right of the RGB field This displays the standard Windows Color dialog box that lets you see the colors that you choose Click on the color button to display the Color dialog box The currently selected color is highlighted in the pallet box and is displayed in the Color Solid field It looks like the picture below 247 Color Basic colors Click Here 7 md NWINENMNNI E EE NEN ES EN NN N EERE BT Custom colors BEE Bea ee BEE BE ff Define Custom Lolos gt gt Cancel Currently Selected Color Hue 40 Red 255 Sat 240 Green 255 ololSolid um EJ Blue T Add to Custom Colors e To select a new color click on the colored square that contains the color you want then click on the OK button e The portion of the 3D Map that you modified will be repainted using the new color e Click the OK button on the 3D Chart Control Properties dialog box Note you are not required to view the Levels tab when changing the color of the bands It was only listed in the steps above so you will understand the relationship between a Level and a Style 248 Contour Map 249 What is a Contour
54. on the tab for Dataset 2 to activate it s page You can also activate a dataset by clicking on its name on the tree that is located in the Workspace window After activating the dataset your screen should look like the picture below Op La yoo mmm oh rm Ho MEA A ies JN 10 16 00 AM 1216 10 AN 21620 AM 1018 30 AM an Tras AIM 103547 AM Ey Past INCALO Da ack Tour I nbl e Click on the tab for Dataset 1 to activate it s page It should look like the picture below 86 Ar 103425 aM 87 Create the Group Dataset If you wanted to know what the statistics were for all the datasets combined then you need to create a Group dataset A group dataset is a new dataset that contains statistics and a single chart for all the datasets combined A Group dataset does not have an Events tab nor an ASCII Data tab To create a Group dataset e Right click on the databook name Quick Tour 3 on the tree in the Workspace window e Choose Create Group Dataset from the context menu e Anew dataset tab named Group will be added to the databook window and it will be activated You cannot rename a group dataset and it is always the last dataset in the databook e You will notice that the icon placed on the tree and in the tab for the Group dataset is different than a normal dataset e Your screen should look like the picture below after the group dataset has been created CALC 2090 dusk
55. ounces 784 g Operating Temperature32 140F 0 60C Operating HumidityO 95 Power9 volt alkaline or lithium batteryOperational ModesNormal sample data stored in memory Survey Display data values only Data TypesMagnetic Field rms resultant BroadbandMagnetic Field rms Resultant HarmonicEquivalent Electric FieldOn board computerTattletale Model V with 5X1 expansionMemory156 Kb CMOS RAM 512 Kb Memory Expansion Available A D ResolutionO 196 at full scale 10 bit resolution Sampling IntervalsMaximum 1 sample per 1 5 secondsMinimum 1 sample per 327 secondsSensorsThree 3 orthogonally oriented magnetic field sensor coilsAUX JackDesigned to accept a signal from an external electric field or other special sensor Maximum input current 0 99 mAREMOTE JackDesigned to send a low to high transition to the signal counter of the Model V computer when the input resistance raises from below 1000 to above 10000 Frequency BandwidthBroadband 40 800 HzHarmonic 100 800 HzFrequency ResponseBroadband Total variation of 30 over entire rangeHarmonic 100 Hz 10 to 45 120 Hz 25 to 30 150 Hz 25 to 0 180 800 Hz 25 to 25 Low Frequency Field Rejection10 Hz signal Greater than 1000 to 12 Hz signal Greater than 106 to 1Total Harmonic DistortionMeasurements of THD down to 3 distortionMeasurement Accuracy calibration frequency 50 60 HzResultant Broadband Magnetic Field StandardHigh Field0 1 3000 mG4 120 000 mGTypical 33 Worst Case 10 0 01 300 p T0 4 1
56. page shows the field levels in the data below which a certain percentage of the measurements fall For example order statistics will tell you that 90 of the measurements are below 8 3 mG Therefore 1 5 10 and 99 show the values below which 1 5 10 and 99 of the data fall In other words if the value 11 306 mG is found in the 99 column then 99 of the measurements in that dataset are equal to or below 11 306 mG or conversely only 1 or the data exceed this value The first column below the data page header displays the type of measurement in the dataset e g Broadband Resultant jose File E ty PerpectiEMCA CO Date cord Toe 5 Sano Data mok Descnptien Working in ofice al computer 1450 1712 0 300 0400 0620 D 500 0 308 40 hn b md 0 300 0500 0 820 1 200 Note If the pth percentile 1 5 10 or 99 is not a multiple of the total number of records in the dataset then EMCALC 2000 will take the average of the pth record and p 1 record For example 596 of 66 records is 3 3 therefore to calculate the 5 percentile EMCALC averages the 3rd and 4th record of the sorted data points This is the same algorithm used by Stata a commonly used statistical analysis package Note to EMCALC 95 users Results may vary between EMCALC 95 and EMCALC 2000 due to the averaging method described above EMCALC 2000 averaged results will lie closer to the actual percentile verses EMCALC 95 s method of pulling the res
57. speed of your computer and the size complexity of the databook To speed up opening a databook in EMCALC 2000 be sure to uncheck Always create Statistics and Always create ASCII view and any of the charts that you think you will not need on the Global Options General Tab You can always add these data pages later if needed 144 Saving a Databook To save the active databook e Click on the Save Databook icon in the main toolbar Or e Select File Save from the main menu To save any databook e Right click on the databook name in the workspace window tree e Choose Save Databook from the context menu Note the File Save button and menu items corresponds to the active databook in the databook window With the current design EMCALC 2000 could take a significant amount of time to save the databook file This depends on the speed of your computer and the size complexity of the databook 145 Closing a Databook To close the active databook e Click on the close window icon x in the upper right hand corner of the databook window Or e Select File Close from the main menu To close any databook e Right click on the databook name in the workspace window tree e Choose Close from the context menu If you made changes to any of the datasets in the databook you will be asked whether or not you would like to save the databook before closing All of the datasets contained in the databook will also be closed The datab
58. text RbzX X Where X X is some number These numbers represent the resultant magnetic field intensity currently being detected and stored by the meter Toggle Buttons On Off Switch Event Button Communications Battery Cover LCD Screen 62 Connect the Serial Cable Connect the serial communications cable between your computer and the EMDEX Il e Plug one end of the serial cable into a COM port on the back of your PC remember if itis COM1 or COM2 If your computer has a 9 pin port then you need to use a 9 pin to 25 pin adapter and attach it to the port before attaching the EMDEX II serial cable to the computer The EMDEX LITE cable has 9 pins so no adapter is needed for it unless your computer has a 25 pin port e Most computers clearly label the COM ports as Serial or COM 1 Refer to your computer user manual if you need help locating the COM port connector e The picture below shows the EMDEX II communications cable and a 9 pin adapter being attached to the COM1 port on the back of a desktop computer Communications Cable 9 pin Adapter COM 1 Port e Plug the other end of the serial cable into communication port on the EMDEX II meter e The picture below shows the EMDEX Il communications cable being plugged into the communications port on the EMDEX II meter 63 Communications Cable Communications Port 64 Set the COM Port Before attempting any communications between the
59. the picture below Ww E 50 meters 50 meters 50 meters Start End Changes in direction can be recorded two ways Relative or Compass In Relative mode angles turns are entered Relative to the current direction of travel Using this method you would record the example above as e Traveled North 50 meters e Turned right 90 e Traveled 50 meters e Turned right 90 e Traveled 50 meters 364 In Compass mode angles turns are entered as compass headings That is directions are recorded relative to a fixed direction usually geomagnetic North If geomagnetic North and due North 0 were the same the trip described above would be recorded Traveled at heading of 0 for 50 meters Turned to a heading of 90 Traveled 50 meters Turned to a heading of 180 Traveled 50 meters Each direction is assigned a compass value from 0 to 360 0 corresponds to North 90 to East 180 to South and 270 to West as shown in the figure below North Q East 90 South 180 365 Setting the Direction Option To select the Direction option e Select DIRECTION from the EMDEX II s main menu by pressing the lt gt button e Press the EVENT button one time to display the current direction option e The LCD displays the current Direction option Rt Lt relative to current direction or Compass relative to a compass direction If the displayed Direction option is OK pressing the EVENT button returns you to the m
60. the zoom window It should look similar to the picture below It may not look exactly like the picture below since you may not have zoomed in on the same data which was used to make the screen shot below EMCALC 2000 Quick Tour 1 FUTT Ir Edt View Communication Tools Window Help De m eate fw rea 270 Jul E walk Downtown Emdex Files ee Quick Tour 1 Dala collected while waking from Campbell Inn 12 Walk Downtown to Enertech s office in downtown Campbell Broadband Resultant Magnetic Field mG Ys hg Can pos iue EMO Mae fue 1233 PM 12 34 PM 12 35 PM 1236 PM Tire Jui01 1939 Julio 1989 1232 34 PM 12 36 16 PM E MMy Progects EMCALC Data Quick Tour 1 mbk Notice that the start and stop time labels have changed to indicate only the data that is displayed The Previous Zoom and Reset Zoom buttons are also activated on the toolbar You can keep zooming in on the data until there is a minimum of 3 data records displayed on the chart or until a maximum of 20 zoom levels have been created At that point defining a new zoom window will not change the chart Click on the Previous Zoom button to go back one zoom level Click on the Reset Zoom to reset the zoom level back to the entire data set 271 Cursor Readout of Data You e E can use the mouse to get a reading of the data in the chart Place the mouse cursor somewhere inside the plot area the area inside the box defined by the X a
61. this equation for the true fundamental gives 2 c Por 25 sys 5 297 Then the ratio of the true value of the fundamental to the calculated value is 6 In terms of measured quantities this ratio is F 1 6 H F 1 6 8 H 7 The value under the radical is always less than or equal to 1 so the expression shows that the calculated value is always equal to or larger than the true value This expression is used to establish a criteria for limiting the error to a specified fractional value e or equivalently to a percentage error of x 100 The fractional error is given by F F LE F 8 or equivalently Peal F l e Substituting the value for EJE given above yields 298 9 Solving this equation for the ratio of H to B gives 10 For given values of and this expression determines the maximum ratio between the measured harmonic and broadband values for which the error in the calculated fundamental is less than x 100 So What Previously we presented two different examples to illustrate the potential fundamental calculation problem To further analyze this matter let s consider other hypothetical situations which are shown in Table A 1 For the first case hypothetical values are reported for a transmission line where there is a low harmonic content Suppose that the true broadband field is 100 mG and the true harmonic field is
62. vi Camrwizaion Tode Help 0 0 0 0 0 o o n 68 Test the Meter If you want to see the meter in action and ensure that it is in fact doing something then With the serial cable still attached try moving the meter close to a magnetic field source Since you are at your computer you can move the meter close to your computer s monitor f you have a laptop PC or a desktop LCD panel then this will not be a good magnetic field source Move the meter close to the monitor and you should see the values increase on the computer screen and on the meters LCD Usually the back of the monitor creates higher fields than the front Move it away from the monitor and you will see the fields decrease 69 Mark an Event While collecting data with your meter a special event may occur and you want to mark that event in the data For example you may want to mark the data at the time you walked into an elevator Or while performing a lateral profile on a transmission line you may want to mark an event at the edge of the right of way one under center of the line and another at the other edge of the right of way You can only mark events with EMDEX Il meters The EMDEX LITE does not have an Event button To mark an event in the data e Press the Event button on the front panel of the EMDEX II meter e You will notice that the text e
63. vs Time Chart c cccccceceeeceeeeceeeceeeeeeeeeeeaeeaeceeeeeeeeeqsanaeceseeeseeeenueeaeeeeeeeeneeea 270 Workspace Window eat lan tete ae a nn er esed end 137 Z ZOOM ANG CA is EE 44 Zooming the Field vs Distance chart essre eienenn innet an EIE En ETEA AEA TEREA AATE EE 268 Zooming the Field vs Time Chart sssssssssseeee eene mener enne nnns 274 426
64. will be presented with a dialog box requesting information about the event to be added e If the record type is 1 through 6 then you will see the following dialog box Date sep 230 1992 v 32 Time 5 32 15 PM r Description e Ifthe record type is 7 LINDA then you will see the following dialog box 211 212 Enter the start date time or distance at which the event occurred Enter a description for the event This description will be displayed on the Field vs Time and Field vs Distance charts Click on the OK button The new event will be inserted into the proper order in the event list The remaining events will be renumbered as necessary Delete and Event To delete an event e Right click on the event you wish to delete e Select Delete Event from the context menu e The event will be deleted from the list and the remaining events will be renumbered as necessary 213 Edit an Event To edit all the data for an event e Right click on the event you wish to modify e Select Edit Event from the context menu e This will present you with a dialog box containing editable information about the event e Change the information as necessary then click on the OK button e The event will be updated with the new information If you changed the date time or distance the remaining events will be renumbered as necessary To quickly edit just the description e Double click
65. will look similar to the picture below after pressing the Tab key Notice that the Event 2 label has been move up on the chart by 100 pixels or 200 pixels from the X axis It is important to note that the offset of the labels is always in pixels This means that depending on the size of the databook window the vertical location of the event label could change relative to the X axis It is recommended that you always maximize the databook window prior to making adjustments to the label locations And always print the charts with the window maximized Aen Chip Taken Leger Chartissa Fresas Char abre N General tonar imn Fort E Step Ngee Evert 2 Pose x acta dote fic 2 P ded Osa colectod chang Quick Tou 2 I 2 via E E pa E Ervactard fandt c 1 IE 5 8 1102 AM 1100 4 11 04 AM AN pee Tre DIDA 295 110021 AN 11 DIOC AM Eg Propi t MCAL OD andy Fest Data r t Pint v Tene UT P You can add a border around the event label from the Border tab You can change the color of the event label text from the Interior tab You can change the font style size bold italic etc for the event label text from the Font tab 79 80 Create ASCII Data Let s say that you wanted to view the actual data numbers in the databook Or that you wanted to create an ASCII file containing the measurement data so you can import it into another statistical package f
66. with its own help system so you can get detailed help on all the tabs and fields in the dialog box e Many changes to this dialog box will update the chart immediately so you can see the effect of your modifications e There is no undo feature so you will need to manually reset the values if you make a mistake 262 Zooming the Field vs Distance chart You can zoom in on portions of the Field vs Distance chart in order to get a better view of some of the data There is a maximum of 20 zoom levels You can zoom in up to 20 times then zoom back out 1 level at a time or reset the zoom level to the entire chart To zoom in on a portion of the chart You define a zoom area using the mouse to indicate the left and right edges of a zoom window Click and hold down the left mouse button on the portion of the chart where you want start the zoom window While still holding down the left mouse button drag the mouse cursor horizontally across the chart until it located at the end of the zoom window You will see a black Zoom box drawn as you move the mouse Let up on the left mouse button The chart will be redrawn to display only those records that fell within the zoom window Notice that the start and stop distance labels have changed to indicate only the data that is displayed The time on the start label is unchanged since the start time of the dataset not the zoom window is always displayed on the Field vs Distance charts The
67. xf aT mes I f ee 1777 ELTERN VIENEN ES EVE DAS Esl II IAS VIVOS NINA ENOTA ANA Josue yy mino Il A un ends n UP m d Le atest Danat CL Dataset 2 E EMDEN Fin LH a B 3 Pac Type 59 Dada 3 Datacet t Diane 2 18 x Danes 3 AA 2 Paco Iron 2 Sangi Day W Orati 4 Pecod type 1 Sach Dats A li Dee t 14 A J JA qM Poco Tips 35360 Data AN n N Bi Duas t ur Nm Jin I PL S N X Jf at LER y J all V 5 E sat y 3 10 Eroscterd wutet D3 Brcacterd K Component z Broacberd Y 08 Wrcacterd 7 Comporert or 06 T oo rr Da nap 02 1016 20 AM 101700 AM 101710 AM 1017 20 AM DE Tre Aunt nene 10 16 43 AM 3017 28 AM 4 CM Prset ECL Cal fisco Type 5 Sangis Outs 7 diat cats mik Belsbesks 4 fi Eme A Desert Cor Ges J Espora froe re m nm Reay FEES Res pisa 153 Renaming a Dataset To rename a dataset e Right click on the dataset name in the workspace window tree e Choose Rename Dataset from the context menu e Enter a new name directly in the tree for the dataset then press the Enter key on your keyboard Or e Right click on the dataset tab and select Rename from the context menu e The Rename dialog box will be displayed e Enter a new name for the dataset and click on the OK button The new dataset name will appear in the tree and on the tab 154 Copying a Dataset into an Existing Databook To create a copy of a dataset e Right click on the dataset na
68. 0 Stop Data Collection cti er tet eee HORE ac main 71 Stop Real Time Monitoring nme 72 Download the Data italia ee E estet cit gd 73 Edit the Event Marks iento a eee ede OD esee cloud 75 View the Chart 5 excess ccs iets eret leder OG ERE ere cce nn 77 Adjust Event Label Locations 4444snnnnnenennnnnneennnnnnn nennen nenn 78 Create ASCll Dalaran Hann ere e Dern ede den iet ee 81 Close the Databook ennei eno te Penne eier 82 Quick Tour 3 83 Introduction to Quick Tour 3 ssssssssssseeeeeemeeneen nnns 84 Open the Data File en ner e rens 85 View the Datasets retener he e tat i pee da 86 Create the Group Dataset ooooononccccccccncccccocononcnccnncnncnnononnnnncnnnnnannmnncnnnnnncnnnns 88 View the Field vs Time Group Chart sss 90 Close and EXIE ose aneinander 92 Quick Tour 4 93 Introduction to Quick Tour 4 94 Open the Files 0 3 tota nd d t d ec ded 95 Change the Chart Titles edita ere etta re ees 97 Change the Series Lines cnica ae ug cb M va P ed Ra 99 Changa th Y axis a diete Dae orto d e n a e e d 101 Print the New Field vs Time Chart ooooooococococccncccccoconononnncnnnnnonnnnnnonncnnnnnnnnnns 103 Save the Changes and Exit the Application nes 104 Quick Tour 5 105 Introduction to Quick Tour Decraene e nnns 106 Open the Quick Tour 5 Sample File sssssssssssesee 107 Change the Color Barids
69. 0 800 Hz measure within 30 of the fundamental frequency fields 50 or 60 Hz Frequencies below 40 Hz are strongly attenuated and frequencies above 800 Hz are attenuated proportional to the frequency see figure below Normalized Signel Strength 343 EMDEX Il Harmonic Frequency Response 100 800 Hz Magnetic fields in the frequency band from 100 800 Hz measure within 30 of the fundamental frequency fields 50 or 60 Hz Frequencies below 100 Hz are strongly attenuated and frequencies above 800 Hz are attenuated proportional to the frequency see figure below 344 Estimates of operational Battery Life Battery life times reflect typical values and may vary significantly between individual battery cells Mercury battery test times were not available at the publication of this manual Memory Capacity Sa 156 512 Alka Lithi mp Kb Kb line um le Ra te se c Broa 1 5 21 6 71 1 35 100 dban hrs Hrs hrs hrs d Resu 3 43 3 142 2 40 100 Itant hrs Hrs hrs hrs 5 3 0 9 9 2 5 9 6 days days day day S S 10 6 0 19 7 4 14 4 days days day day S S 15 9 0 29 6 4 5 16 days days day day S S 30 18 59 7 21 30 180 592 day day 0 days days S S Broa 1 5 5 9 19 4 35 100 dban hrs hrs hrs hrs d Resu 3 11 8 38 8 40 100 Itant hrs hrs hrs hrs X y 5 19 7 2 7 2 5 9 6 andz hrs days day day S S 345 Broa dban d amp Harm onic Resu Itant Broa dban Harm onic and E Field Resu Itant Broa dban Harm
70. 0 EI WARNING EMCALC 2000 cannot prevent you from loading a High Field program into a Low Field unit or vice versa If this were to happen then the data WILL BE ERRONEOUS This option should only be used for programs that you have developed yourself Do you wish to upload the selected program E My Projects EMCALC T tbasic E5030LTC BAS j Cancel e For each line of the operating program file that EMCALC 2000 uploads the EMDEX I meter echoes that line giving the opportunity for EMCALC 2000 to verify that the EMDEX II meter has correctly received each line of the program If EMCALC 2000 detects an error in transmission an error is displayed Data integrity check failed An error occurred during transmission Please make sure the cables are securely plugged in and try again You must turn off the meter and turn it back on before trying to upload a program again e After EMCALC 2000 successfully completes uploading the selected program to an EMDEX II meter a dialog box displays the message Successfully uploaded program to an EMDEX II meter with the name of the operating program file that was uploaded e You are now ready to collect data using the new operating program that you selected 182 183 Change EMDEX II Parameters Sometimes it is necessary to change the default parameters for the meter Sample Rate Storage Bandwidth Op Mode amp Display Though you can do this on the meter itself by using the progra
71. 0 mG Bm 100 mG 300 Hm 9 5 mG Hm 66 5 Hm 95 mG Hm 66 7 mG mG Fc 99 5 mG Fc 71 4 mG Fc 31 2 mG Fc 74 5 mG Allowable H B x 0 86 H B x 0 59 H B 0 095 H B 0 665 H B 0 95 H B 0 667 The theoretical frequency response of the harmonic circuit filter for harmonic measurements with an EMDEX II is given in figure below This figure shows how the response varies with frequency Frequencies which exhibit the most deviation are near 120 Hertz 180 Hertz and 400 Hertz Gain 100 20 An 4n 3mo 600 SKI 1000 Frequency Hz A Monte Carlo simulation was performed to determine the overall variance in the frequency response of the harmonic filter due to normal tolerances in the electronic components The result of this simulation for 50 runs is shown in the figure below Note that the variation in frequency response is larger at the lower frequencies less than 300 Hertz This Monte Carlo simulation was used to evaluate the potential difference between true and measured values due to harmonic filter response 301 Db Gain 100 200 MH 400 500 60 RDO 1000 Frequency Hz To evaluate the actual as built EMDEX II harmonic filter frequency response six meters from three different production runs were characterized by measurements The results of these measurements are shown in the figure below The actual EMDEX Il meter response varies as expected within the normal tolerances of the electronic cir
72. 00 e Choose File Exit from the main menu This concludes Quick Tour 1 59 Quick Tour 2 60 Introduction to Quick Tour 2 In this Quick Tour you will collect some data with your meter EMDEX II or EMDEX LITE perform some real time monitoring of the meter data collection download the data from the meter and then view the results For simplicity we will be assuming you have an EMDEX II meter If you have an EMDEX LITE the procedures are similar but the screen shots may look different 61 Start Data Collection Remove the plastic battery cover on the EMDEX II meter Leave the battery cover off for the remainder of this Quick Tour e Turn the power switch located under the battery cover to the On position e After a brief power up sequence the meter will display STANDBY on its LCD screen If a LINDA program was burned into your meter then it will display the word LINDA If LINDA is displayed then you cannot perform this Quick Tour unless you first upload the Standard operating program into your meter See the topic titled Change EMDEX II Parameters in the Communications section of this document e Press the toggle button on the front panel of the EMDEX II meter one time to enter run mode The word Run will be displayed on the LCD e Press the EVENT button on the front panel of the EMDEX II meter one time to start data collection The text start 1 will be displayed briefly followed by the
73. 10 mG The true fundamental field would therefore be 99 5 mG If the error in filtering and component tolerance of the EMDEX Il is assumed to be 5 then the measured broadband value would be 100 mG and the measured harmonic value could be 9 5 mG 596 low The calculated fundamental value would be 99 55mG which is very close to 99 5 mG Equation 10 provides the formula for establishing acceptance criteria for the ratio H Bu In Example 1 we assumed a tolerance of 5 9 0 05 and an acceptable error limit of 20 0 20 Therefore the acceptance ratio for H B is 0 86 or less The actual ratio H B is 9 5 100 or 0 095 which is much less than 0 86 and is acceptable Next consider a hypothetical industrial environment with a strong harmonic component 299 Suppose that the true broadband field is again 100 mG and the true harmonic field is 70 mG The true fundamental field would be 71 4 mG Assuming a 5 error in the harmonic measurement the broadband value would be 100 mG and the harmonic value could be 66 5 mG 5 low The calculated fundamental would be 74 7 mG where the ratio H B is again less than 0 86 Next consider taking hypothetical measurements on an airplane where the strongest magnetic field present is at 400 Hertz Suppose that the true broadband field is 100 mG and the true harmonic field is also 100 mG i e No 50 60 Hz fields The true fundamental in this case would be 0 mG However assuming a 5 harmonic m
74. 181 EMDEX Electric Field Ranges ener eterne ntur Enn RR Rn nua na 346 EMDEX II Frequency Response 4444444444400nnnnnnnnnnnnnsnennnnnnnennnnnnnnannnnnnennnnnnsnannnnnnn nn 347 EMDEX II Hardware Specifications eene 344 EMDEX II Harmonic Frequency Response 100 800 Hz sse 349 EMDEX II LCD Error and Warning Messages ssssem emm emm 319 EMDEX II Magnetic Field Range sseseeeeeenn emm nennen nemen nennen 345 stp INSCR T TED 16 EMDEX LITE Communications CheckliSt ooocccccncccccononnconcnnnncnonnononononcnonnorncrnnonnnnononarinnos 190 EMDEX LITE Frequency Response ccccccccconononcconcnncnnnnononncnncnnnnnnnnnnnnnnnncnnnnnnnn nn nn nennen nre ennn 362 EMDEXTLITEMEIER 121 a tit dd 17 EMDEX LITE Specifications cer ae Hensel 360 EMDEX LITE Typical Battery Life and Data Collection Times usnesnnnnnennennnnenn nn 359 A cient eta IR c bereit ertet EEE aie ota Seid TE ET 20 Estimates of operational Battery Life ssssssssssseeee emm emm ens 350 Events Data Pages 2 22 22 enden ite aa eq e Hr ace eae ER SRI Ran 214 Export to ASCILEIG 2 2 2 a a td dai 240 Expos re Time Data Page umd ein dde 228 F Field Polariz tion s n A A a ik 341 Field vs Time Chart di a a dh anal ala 96 Fundamental Calculation Check ccccccccccececcesesececeeeceeaseeseeeeeeseaueeseeeeeeeeaueaseceeeseeaeaaaeseeeees 301 G Genera
75. 2 000 uTTypical 3 Worst Case 10 Equivalent Electric Field Typical Accuracy 5 plus sensor accuracyWorst Case Accuracy 15 plus sensor accuracyMeasurement MethodTrue RMS Measurement with Crest Factor Crest Factor Error Crest Factor 2 1 Additional 2 Crest Factor 3 1 Additional 5 Note The Crest Factor of a periodic signal is the ratio of its crest peak maximum to its root mean square rms value Temperature ErrorsReadings will vary no more than 2 per 10C change of temperature in the range of OC to 50C 339 EMDEX II Magnetic Field Range Sta nda rd Hig Fiel Scale Range mG Resolut ion mG Range mG Resolut ion mG 0 1 11 0 1 4 440 0 2 322 7 1 20 8 0 128 3000 3 2 5 120 120 00 128 For the Standard EMDEX II the measurement resolution is actually 0 0125 mG on range zero but values are rounded to the nearest 0 1 mG by the internal operating program For range 0 on the High Field EMDEX II the resolution is 0 5 mG but values are rounded to the nearest multiple of 4 mG 340 EMDEX II Electric Field Ranges Scale 0 1 2 Full DURO f 0 05 0 896 Scale 6 HA 1 39 19 66 0 Resolut 0 0003 0 01 0 256 ion uA 6 Electric field ranges are given in microamps pA of injected 60 Hz current Each electric field sensor will have a calibration constant in yA per 1 kV m electric field For example the 60 Hz E Probe has a constant of 0 0001493 uA V m
76. 235 PM 1240 PM Time Ju0171999 Jduip1 rss 12 28 07 PM 12 40 52 PM E AMy Provects EMCALC Data Quick T our T mbk IIT NI z e Letupon the shift key to stop the cursor readout e Move the mouse slightly and the cross hairs disappear but the readout will still show the last data point that was displayed e To clear the chart just click on one of the other tabs at the bottom of the screen i e Exposure Time then click on the Field vs Time tab This causes the chart to be refreshed and the cursor readout is cleared 45 46 Print the Chart To get a print out of the chart e First make sure the Field vs Time chart is displayed If not click on the Field vs Time tab at the bottom of the screen e Maximize the chart window by clicking on the maximize button in the upper right corner of the databook window or by double clicking on the title bar at the top of the databook window e Setup the printer for Landscape mode this works best for Field vs Time charts by choosing File Print Setup from the main menu e The Print Setup dialog box will be displayed Print Setup Hewlett Packard LaserJet 5P e Click on the Landscape radio button located under the Orientation heading Then click on the OK button e Click on the Print button on the toolbar to bring up the Print dialog box 47 48 Make sure the printer that you want to send the chart to is currently selected in the Nam
77. A program or a custom program For a Standard program you can select the external probe attached to your meter None Amp Logger 50Hz E Probe 60Hz E Probe or other Options None Amp Logger and Other all select the same program which allows you to use an Amp Logger as a default Then you can specify the magnetic units with which you wish to display the readings on the meter milligauss Gauss or microtesla millitesla e Any selections you make in this dialog box are only temporary and will not be remembered by EMCALC 2000 To permanently change the default settings for this dialog box you must set them in the Communications tab of the Options dialog box e For your convenience if you select to upload an E Probe program EMCALC 2000 will automatically set the meter parameters to store Resultant and E Channel data display the Electric Field readings at the minimum sample rate of 3 seconds e Once you have confirmed your selections click the OK button and EMCALC 2000 will begin uploading the program While uploading a dialog box displays how many bytes have been uploaded and the total size of the file that s being uploaded The LCD display on the meter should read Comm PC during the upload Note If you select a custom program to upload EMCALC 2000 will display the following warning message before starting to upload Click OK to start uploading the selected custom program Click Cancel to select a different program to upload EMCALC 200
78. Broadband resultant in digital units 2 Key Byte Bit 0 Event mark O no 1 yes 1 2 Scale factor 3 Bad data flag data was saturated 4 7 Not used 413 Data Record Type 2 Record Type 2 is a 5 byte record containing the broadband magnetic field resultant and the harmonic magnetic field resultant This record type is used when the EMDEX II STORAGE option is set to resultnt magnetic field resultant and the BANDWDTH option is set to bb amp har broadband and harmonic Byte Description 0 1 A D Broadband Resultant in digital units 2 3 A D Harmonic Resultant in digital units 4 Key byte Bit 0 Event mark O no 1 yes 1 2 Broadband scale factor 3 4 Harmonic scale factor 5 Broadband bad data flag 6 Harmonic bad data flag 7 Not Used 414 Data Record Type 3 Record Type 3 is a 5 byte record containing the broadband magnetic field resultant and the broadband E channel data This record type is used when the EMDEX II STORAGE option is set to rsIt amp E magnetic field resultant and E field and the BANDWDTH option is set to broadbnd broadband only Byte Description 0 1 A D Broadband Resultant in digital units 2 3 A D Broadband E channel in digital units 4 Key byte Bit 0 Event mark O no 1 yes 1 2 Resultant scale factor 3 4 X E channel scale factor 5 Resultant bad data flag 6 E channel bad data flag 7 Not used 415 Data Record Type 4 Record Type 4 is a 10 byte data record con
79. Control Properties dialog boxes do not let you undo your customizations this can be a problem If you find that you have really messed up your chart you can use the View Reconstruct Chart on the main menu to put the chart back to the way it looked when it was created for the very first time This means the fonts line colors line styles event mark positions will all revert back to what they were before you ever performed any customizations 277 Print a Chart You can get a hardcopy of all charts by printing them To get the best looking output it is best to first maximize the chart window before printing To print a chart e Maximize the chart window by clicking on the maximize button in the upper right corner of the databook window or by double clicking on the title bar at the top of the databook window e Click on the Print button on the toolbar to bring up the Print dialog box wlett Packard LaserJet 5P e Make sure the printer that you want to send the chart to is currently selected in the Name field under the Printer heading If not then choose the correct printer from the drop down list box e Click on the OK button e A status message will be displayed indicating that the chart was sent to the printer e Retrieve the printout from your printer 278 Copy a Chart The chart data pages are unique in that you can make duplicates or copies of them The copies are contained on their own data page and you c
80. Font button 5 to the right of the font Description field This will display the standard Windows Font dialog box Change the font size to 18 and the style to Bold then click on the OK button The chart is immediately updated with the new font size and style Click on the OK button in the 2D Chart Properties dialog box Your final screen should look like the picture below TEE Kb te Eat yew Comes Lech incom lalo alix Des eetimioao fwtitn 1mm 98 HP LaserJet 5p Printer Brcacerd Farid ant X Component Wir C rooney Component Broadband Z Component m c c it ENDEN on das 012 enfe printer comes down 4 1003 am 10 06 4M UE 1005 13 4M Fb v Tune AE TAO NINA CRA MENTA Change the Series Lines Each component X Y Z Resultant E in a chart is represented by a different series Each series is displayed on the chart as a line Each line is a different color and has a unique line style solid dotted dashed etc A unique line style is used so that if you print on a black and white laser printer as most people do then you can distinguish the different components on the chart Though this enables you to distinguish the different components the line styles that are not solid dashed dotted etc often make it difficult to see all the data If you are fortunate enough to have a color printer then you can change all the line styles to solid and use the color to distinguish the data
81. I meter EMCALC 95 or LTE Data file t f fi th EMCALC 2000 ata file transferred from the EMDEX LITE meter Databooks are essentially a grouping of one or more measurement sessions called datasets Suppose for example you measured the magnetic field in several different locations and recorded these measurement sessions in a single data file The EMDEX II allows you to start and stop up to 20 measurement sessions before you must transfer the data to the PC A dataset is created in the meter s memory for each of these sessions After transferring the data from the meter to the computer each of the individual measurement sessions are stored in a separate dataset within the data file or databook Once the databook is created EMCALC 2000 allows any number of datasets to be copied and pasted to and from any databook therefore allowing more then 20 datasets per databook as the meter currently limits A databook can also contain a group dataset A group dataset is an analysis of all the datasets currently in one databook assuming they are all of the same record type unit type and sample rate i e having the same data such as all broadband resultant or all broadband x y z etc Group datasets can automatically be created by the program when a databook contains two or more datasets all of the same type if you have the Always Create Group Dataset option turned on in the Options dialog box 141 142 Creating a New Databook A new databo
82. MDX file or the LTE file since EMCALC 95 will not recognize the new MBK databook format used by EMCALC 2000 13 Key Features of EMCALC 2000 EMCALC 2000 supports the following communication statistical graphical and data management features 14 Data transfers and communication with the EMDEX Il and EMDEX LITE through serial ports COM1 COMA Descriptive geometric and percentile statistical analysis Graphical analysis includes Field vs Time Field vs Distance 3 D Maps and magnetic field contour maps available for datasets collected using the LINDA Measurement Wheel System or converted datasets Separate analysis of the x y and z components and the resultants of the fundamental 50 or 60 Hz broadband 40 800 Hz and harmonic 100 800 Hz fields ASCII representation of datasets Event marker and start time editing support Converting EMDEX II datasets to LINDA datasets Creating datasets from subsets of existing datasets Modifying the path walked in LINDA dataset Previous EMCALC Users Previous users of EMCALC will notice a big difference in the user interface for EMCALC 2000 Though dramatic this new design enables the program to be more flexible The program interface is more contemporary and intuitive and is less menu driven than its predecessors Data is viewed in tabbed windows that are quickly accessed with the click of the mouse rather than drilling down through a maze of menus and submenus A new tree c
83. Map The Contour Map data page displays a magnetic field contour map of the area surveyed in an EMDEX II LINDA dataset The picture below shows an example of a Contour Map r 1 r 100 200 Distance ft Ly Pasco E VICALCNDaka kV Ling Map rbd 250 The Contour Map Toolbar The active buttons on the Contour Map toolbar are described below px uet display the X component of the magnetic field Y display the Y component of the magnetic field z display the Z component of the magnetic field display the Resultant magnetic field 251 Customizing the Contour Map The Contour Map is created using a 3D Chart Control that is very flexible This control lets you customize many aspects of the chart such as the number and color of the bands the size of the fonts the axis labels the legend style etc To customize the Contour Map e Right click on the Contour Map chart itself e This will display the 3D Chart Control Properties dialog box shown below 3D Chart Control Properties Eg ai Chart rea PlotCube View3D Levels ChartStyles Aes ChartGroup Styles Titles Legend er Scale Title GridLines GridStyle Font Y Min v IsDefault m J E E Max 370 571 VW IsDefault Cancel Apply Help e This dialog will allow you to make the several common modifications to the chart e t comes with its own help system so you can get detailed help on all the tabs and fields in the di
84. Median All values are in milligauss mG Deecnption Data collected wine walking from Camprel Inn Y Enertech s office ie dorm Camp i i i i l 37 View the Order Statistics To view the Order statistics for the dataset e Click on the tab named Order at the bottom of the screen e You will be presented with a screen similar to the one below e Displayed below the Data Sheet Header are the Order statistics Percentiles for the dataset 1 5 10 25 50 75 90 95 and 99 All values are in milligauss mG e Depending on your screen resolution and system font size the higher percentiles may not be visible If this is the case you need to use the scroll bar at the bottom of the page to scroll to the page to the left and thus display the data 38 View the Geometric Statistics To view the Geometric statistics for the dataset Click on the tab named Geometric at the bottom of the screen You will be presented with a screen similar to the one below Displayed below the Data Sheet Header are the Geometric statistics Mean and Standard Deviation ecnpton Data collected while waking from Camprel Inn D Enertech s office in dormir C atip i j i l Tt 39 View the Exposure Time Statistics To view the basic Exposure Time statistics for the dataset e Click on the tab named Exposure Time at the bottom of the screen e You
85. Page To view a list of the event marks that are contained in the dataset e Click on the tab for the Data Page named Events at the bottom of the screen e You will be presented with a screen similar to the one below e The top several rows of information are known as the Data Sheet Header and consist of the file name of the databook the description of the dataset the ordinal number of the dataset within the databook the start and stop times of the dataset and the total number of records in the dataset e Displayed below the Data Sheet Header are all the events in the dataset this dataset contains seven events along with their pertinent information This includes the record number in which the event occurred the time stamp of the event the description of the event entered by the user and all the field values associated with the event e This page is also used to edit the event list Events can be added deleted and edited time and description Ema mg Dire Ae A Enertech s Fore coor Ju91 1598 12 38 Z8 PM Jui 1 1898 12 40 41 PN 36 View the Descriptive Statistics To view the basic Descriptive statistics for the dataset Click on the tab named Descriptive at the bottom of the screen You will be presented with a screen similar to the one below Displayed below the Data Sheet Header are the Descriptive statistics for the dataset Minimum Maximum Mean Standard Deviation and the
86. Save button on the toolbar e A status message will be displayed in the status bar at the bottom of the application window The word Ready will be displayed when the file has been saved to disk Exit EMCALC 2000 e Choose File Exit from the main menu This concludes Quick Tour 4 104 Quick Tour 5 105 Introduction to Quick Tour 5 In this quick tour you will learn some advanced charting techniques that enable you to customize the look of your 3D Surface charts You will learn how to do the following e Change the colors of the bands on the chart e Add ceiling contour lines e Remove the floor contour lines e Change the legend type 106 Open the Quick Tour 5 Sample File e If EMCALC 2000 is not already running then start it e Open the file named 500 kV Line Map mbk located in the Sample Data directory This file contains a single dataset with record type 7 LINDA spatial series data e Maximize the databook window e Activate the 3D Surface chart page by clicking on the 3D Map tab at the bottom of the databook window e Since we don t want to change the original file let s save a copy of this file under a new name and then work with the copy e Choose File Save As from the main menu e Enter the name Copy of 500 kV Line Map in the File name field then click the OK button e The new file will be saved to disk The new name appears on the tree in the Workspace window and in the ap
87. T button exits the option without changing it e Press the lt gt or lt gt buttons to toggle through the Display options e Setthe Display option to the value on the LCD by pressing the EVENT button DISPLAY appears on the LCD indicating that you have completed the selection 327 Taking Measurements with the EMDEX Il The EMDEX II allows you to start and stop up to 20 measurement sessions called datasets before you must download data to the PC Data sets are independent from each other and can have completely different measurement options 328 Starting Data Collection Follow these steps to take data using the EMDEX II Set the desired measurement options The OP MODE option must be set to normal in order for the meter to collect data Select the RUN option The LCD displays start lt n gt where n is the n data set started since the meter was last turned on This is followed by any diagnostic error messages that may have occurred during start up If no error messages are displayed data collection begins after a few seconds The LCD shows whatever quantity was selected using the DISPLAY measurement option If the DISPLAY option specified more than one quantity the EMDEX II Switches between the quantities The symbol in the right column of the table below is used to designate the quantity described in the left column Quantity LCD Symbo Broadband Resultant Rb Magnetic Field Harmonic Resultant Rh Magnet
88. Table of Contents Table of Contents 1 Introduction to EMCALC 2000 8 Melcome sette butt oct D LEID E LE d 9 Legal Notices tete pP OW RR 10 Acknowledgements eet ne ar a ER e Re 11 New Features in EMCALC 2000 sssssssseeeeeeeeme eren 12 Key Features of EMCALC 2000 eene meer 14 Previous EMCALC Users coooooccococonocococonccncnnononccnncnnnnnnnnnnnnnnnnnnnnnannnnnncnnnnnnnnanns 15 EMDEX 11iMeter essen en IE e aes 16 EMDEXLITE Meter cii tortue eaaet t RR d es 17 LINDA Measurement Wheel ssssssssssseeeeeee enne 18 Amp E ggers t ee teu eene a 19 E Probe cel xc i MERE ri aM a MA UM 20 Backward Compatibility nemen 21 Getting Started ctas dd ER 21 Contacting Technical Support ssssssssssse e 21 AD Deviations ete eter tibt ame ane eg danas ace 22 Installation 23 Installation Requirements cccccccceececceceeeeeeeceeaeceeeeeeeeeeeeceueaeeeeeeeeeteenaees 23 Installation Instructions esssseseeseneeenn een 24 Registering the Software uunsnnsesnnnnnnnnennnnnnnnnnnnnnnnennnnnnnnnennnnnnn nn 26 Starting and Exiting EMCALC 2000 ssssssseee eee 27 Accessing Heli traia 28 Uninstalling EMCALC 2000 00 00 ccc ceeececcece eee eeeeeeceneaeeeeeeesetecaeaeeeeeeeeeeeenaees 28 Quick Tours 29 What are Quick Tours o ga rer ea aea aa A la Rae Taa 30 Quick Tour 1 31 Introduction 3 322 ree rhe iret dei ed e te in 32 Start EMCAL C 2000 A ent e eO
89. The EMDEX Electric and Magnetic Field Digital Exposure System is a hardware and software package designed to measure record and analyze electric and magnetic field power frequency The complete system consists of one or more of the following components The EMDEX II exposure meter The EMDEX LITE exposure meter The Linear Data Acquisition LINDA Wheel which uses the EMDEX II meter The EMDEX II Amp Logger Model 200A An interface device which allows the EMDEX II to be used as a recording clamp on ammeter with a Fluke AC current probe The EMDEX II Electric Field Probe The EMCALC 2000 Software Legal Notice The EMDEX exposure system including hardware EMCALC 2000 software and documentation was prepared by Enertech Consultants of Santa Clara County Inc Neither Enertech nor any person acting on its behalf a makes any warranty expressed or implied with respect to the use of any information apparatus method or process disclosed in this exposure system or that such use may not infringe privately owned rights or b assumes any liabilities with respect to the use of or for damages resulting from use of any information apparatus method or process disclosed in this exposure system The non transferable and non exclusive program license granted by Enertech to purchasers of this exposure system and software package may not be assigned sublicensed or otherwise transferred without written consent from Enertech No right to pr
90. This error can be seen on the Drawpath data page when the software reconstructs the path that it thinks the user traversed When an obvious error like a missing turn is noticed it can be easily fixed using the Modify Angle feature on the Drawpath page You will use this feature of the software when you follow the steps in this quick tour 117 Open the Quick Tour 6 Data File Open the file Quick Tour 6 mbk located in the Data subdirectory mm ln Select File Open from the main menu or click on the Open button 5 on the main toolbar The Open File dialog box will be displayed Select the Quick Tour 6 mbk file Click on the Open button The Databook window will be displayed with it s only dataset Parking Garage activated Maximize the Databook window by clicking on the maximize button in the upper right corner of it s title bar It should look like the picture below after maximizing Notice that this dataset contains a Field vs Distance data page The dataset was collected using a LINDA measurement wheel which collects distance measurements as well as magnetic field measurements Therefore it has record type 7 data which contains spatial series data and magnetic fields X Y Z and resultant data PTE TE TNE Dawes tmi mm 118 A Parking Garage Compses mode i t Ly z Dinars In Wy Project MC AL COstwiQuick Tour 8 mich OEA EIA One
91. Unit of computer memory 1 Kb 1000 bytes Length 1 m 3 28 ft Frequency 1 Hz 7 1 cycle second Magnetic Flux Density field strength 1000 mG 1 G 105 mT 1T 10 uT 1 T 1 uT 10 mG Time 1 s 1000 ms Electric potential 1 kV 1000 V Electric field strength Installation Installation Requirements Software Requirements e Windows 95 Windows 98 or Windows NT 4 0 at least Service Pack 3 Warning This application was not tested on nor is it supported when running on Window NT 3 51 or earlier This application does not run on Windows 3 x or earlier Minimum Hardware Requirements e 166 MHz Pentium CPU a 300 MHz Pentium Il or faster processor recommended e 32 MB RAM 64 MB recommended e 15 MB of hard disk space e Color Video adapter capable of more than 256 colors If you run your video settings at 256 colors or less then the colors for some charts may not be displayed correctly e Color monitor 17 recommended e Laser or Color printer If running on Windows NT 4 0 it is recommended that your printer have at least 5 MB of memory installed in order to print 3D surface charts 23 Installation Instructions Installing EMCALC 2000 is very easy Just insert the appropriate disk and the follow the prompts on the screen Please be sure to read every screen before advancing Important This program contains a software protection mechanism that only enables the software to be installed on a single machine
92. You can expand and contract various levels of the tree by clicking on the plus or minus sign next to the tree item The picture below shows a view of the Workspace Window Jxi c g EMDEX Files gt Record Type 3 Sample Data E Dataset 1 gt Record Type 1 Sample Data s Dataset 1 El amp Record Type 2 Sample Data s Dataset 1 El gt Record Type 5 Sample Data 3 datasets Dataset 1 Dataset 2 Dataset 3 Open Databooks Datasets within a Databook 136 Databook Window The Databook window contains all of the data for a given databook It is the window that you will interact with the most when working with the EMCALC 2000 The databook window is a tabbed window that contains tabs for datasets statistical analyses and chart displays The databook window consists of two sets of tabs The set of tabs positioned at the top of the window are called dataset sheets and the tabs positioned at the bottom of the window and are called data pages A databook window will contain a dataset sheet and tab for each dataset in a databook You can view datasets easily by clicking on their corresponding tab Right clicking on a dataset tab will also pop up a context menu which will allow you to delete or rename the dataset Each dataset sheet contains several nested data pages bottom tabs Data pages contain statistical analysis graphs and maps of the dataset The v
93. a page that you want to print is activated by clicking on its tab at the bottom of the screen e Setup the printer by choosing File Print Setup from the main menu e The Print Setup dialog box will be displayed Print Setup RES r Printer Name Hewlett Packard LaserJet 5P Properties Status Ready Type Hewlett Packard LaserJet 5P Where LPT1 Comment Paper Orientation Size Letter C Portrait Source Automatically Select Landscape Network Cancel e Click on the Landscape radio button located under the Orientation heading Then click on the OK button e You will be back to the main application screen e Click on the Print button on the toolbar to bring up the Print dialog box 171 172 Make sure the printer that you want to send the chart to is currently selected in the Name field under the Printer heading If not then choose the correct printer from the drop down list box Click on the OK button A status message will be displayed indicating that the data page was sent to the printer Retrieve the printout from your printer Copying Data Pages You can copy the entire contents of any data page to the Windows clipboard To copy a data page e Select the data page tab you wish to copy e Select Edit Copy All from the main menu e Atthis point you can paste the data page into a word processor spreadsheet or statistical analysis and run furth
94. ain menu without changing it e Continue pressing the lt gt or lt gt buttons to toggle between Rt Lt and Compass e Set the Direction option to the value on the LCD by pressing the EVENT button DIRECTION appears on the LCD indicating that the selection is complete 366 Setting the LINDA Display Options When collecting data with the LINDA wheel the EMDEX II can display either the magnetic field or the distance and angle information The default is to display the magnetic field To change the display option Select the DISPLAY menu item Press the EVENT button to view the current display option The LCD shows the Display selection R broad or Dist Az If itis OK pressing the EVENT button exits the option without changing it Press the lt gt or lt gt buttons to toggle through the Display options Set the Display option to the value on the LCD by pressing the EVENT button DISPLAY appears on the LCD indicating that you have completed the selection The DISPLAY menu choices are described in the table below Displa yed Quanti Description ty R Broadband Resultant magnetic broad field Dist Distance Azimuth Direction in Az degrees from starting direction 367 Recording Direction Changes in Relative Mode In Relative mode changes in direction are entered relative to your current direction of travel Relative mode is used when the DIRECTION option is set to Rt Lt To enter a direction change
95. ally depending upon the strength of the measured magnetic field When the meters are first turned on and begin to collect field data they start in the lowest field range to optimize the measurement resolution i e they measure lower field values more accurately typically within 0 1 mG As magnetic field levels increase the meter begins to reach the upper end of the lower range and automatically switches into the next higher range If magnetic field levels continue to increase the meter continues to automatically switch into higher field ranges until the maximum limits of the meter are reached At that point the meter can only record the maximum magnetic field value capable in the meter EMDEX meters have their own number of field ranges and preset range field strength intervals depending on the type of meter EMDEX Il EMDEX LITE standard version or high field version While the EMDEX meter is measuring magnetic field levels the internal operating program monitors the field strengths If the program detects a field strength that is about 8596 of the full range value full scale value or higher the operating program automatically switches to the next higher range for the next measurement unless the meter has already reached its highest range Similarly whenever the internal operating program detects a field strength that is about 5 of the full range value full scale value or less the operating program automatically switches to the n
96. ally produced by 3 phase distribution and transmission lines Magnetic Fleld Vector 400 There are two special cases of elliptical polarization of special interest linear and circular polarization Linear polarization occurs when the minor axis of the magnetic field ellipse m is zero The vector of a linearly polarized field simply oscillates along a straight line see the figure below Magnetic Field Vector Major Axis M Minor Axis 0 Circular polarization occurs when the minor axis m is equal in magnitude to the major axis M of the field ellipse The vector of a circularly polarized field circles around the location in space with a constant magnitude M or m see the figure below m Minor Axla Magnetic Fleld Single axis field meters are commonly used to establish the maximum field flux density by orienting the meter in space until a maximum reading is achieved Magnetic field calculation packages also calculate a maximum flux density from 3 phase power lines based on current phase and other electrical parameters This maximum corresponds to the major axis of elliptically polarized magnetic fields Since the resultant displayed by the EMDEX II and LITE is calculated from three orthogonal axes a resultant reading 401 reflects not only the magnitude of the major axis of the magnetic field ellipse but the minor axis as well The difference between the resultant and the field s major axis is depen
97. alog box e Many changes to this dialog box will update the chart immediately so you can see the effect of your modifications e There is no undo feature so you will need to manually reset the values if you make a mistake 252 Change the Colors of the Contour Lines To change the color of the contour lines that represent the different levels of magnetic field intensity 3D Chart Control Properties Ed Remove Click the right mouse button on the 3D Map chart to display the 3D Chart Control Properties dialog box Next click on the Levels tab This tab lets you define the contour levels that are used to draw the contour lines on the chart Notice that the eleven ContourLevels defined for this chart are 0 5 1 2 5 10 25 50 100 500 1000 and 3000 The number of levels is denoted by the number 11 in Levels field which is located above the Load button The dialog box will look like the picture below Axes ChartGroup Styles Titles Legend Chart rea PlotCube View3D ChartStyles ContourLevels a General IsDefault Levels Load Save 0 me Add Cancel Apply Help Now click on the Styles tab and then click the LineStyle sub tab to activate it This tab lets you modify the color and line style used to draw the contour lines on the chart The dialog box will look like the picture below 253 3D Chart Control Properties ES Remove
98. an be either Broadband 40 800 Hz or Harmonic 100 800 Hz B scale the gain setting scale that the auto ranging circuitry was on when the magnetic field data record was collected This can be 0 1 or 2 depending on the magnetic field intensity This value is only provided for technicians and is usually used when calibrating the instrument X value this is the magnetic field intensity detected by the X axis coil 66 Y value this is the magnetic field intensity detected by the Y axis coil Z value this is the magnetic field intensity detected by the Z axis coil Resultant this is the resultant magnetic field which is obtained by squaring each of the X Y and Z values adding them then taking the square root 67 Resize the Real Time Monitor window You can enlarge the size of the Real Time Monitor window so that more rows of data will be displayed e Place the mouse cursor on the horizontal line that defines the top border of the Real Time Monitor window e The mouse cursor will change to this when you have placed it in the right spot indicating that you can resize the window e Click and hold down the left mouse button and drag the mouse cursor straight up You will see the Real Time Monitor window being enlarged vertically e When it is about two thirds the height of the EMCALC 2000 main window let up on the mouse button e Your screen should look similar to the picture below when done Ele
99. an customize them without affecting any other chart They are also saved to the file so you can recall them later To make a copy of a chart Right click the mouse on the tab name at the bottom of the databook window i e Field vs Time or 3D Map Choose Copy from the context menu A new tab will be added at the end of all the data pages in the databook The new tab will have the same name as the chart you copied from but with the words Copy of inserted in front You can do anything to this chart that you can to the original charts You can even make a copy of a copy 279 Rename a Copied Chart To rename a copied chart e Right click the mouse on the tab name at the bottom of the databook window i e Copy of Field vs Time or Copy of 3D Map e Choose Rename from the context menu e Enter a new name in the dialog box and click the OK button e The new name will appear in the data page tab at the bottom of the databook window 280 Delete a Copied Chart You can only delete a copied chart using these instructions To delete a copied chart e Right click the mouse on the tab name at the bottom of the databook window i e Copy of Field vs Time or Copy of 3D Map e Choose Delete from the context menu e The chart tab will be removed and the Events page which is the first data page will be activated 281 Changing the Default 2D Chart When a 2D chart is first created
100. ant e All new Field vs Time and Field vs Distance charts that get created from now on will have the attributes of the default 2D chart Any existing charts that had already been customized will keep their customizations If you want to apply the new default chart attributes to an older customized chart then use the View Reconstruct Chart option on the main menu Note if you accidentally mess up the default 2D chart there is a copy of the original default chart in the Data subdirectory and it is named Copy of Default2Dchart OC2 283 You can Load this file then Save it to your installation directory as Default2Dchart OC2 Answer Yes to the question about overwriting the file 284 Changing the Default 3D Chart When a 3D chart is first created a default chart template is used to set many of the chart attributes like line colors line styles font sizes grid marks etc The attributes for the default 3D chart template are stored in a file on your hard disk This file has the name Default3Dchart OC3 and is located in your installation directory If you want to permanently change the attributes of the default 3D chart template and thus affect all future 3D charts that are to be created then you need to modify this default chart To change the default 3D chart 3D Chart Control Properties Ea First make sure the Show All Chart Edit Properties checkbox is checked on the General tab of the Options dialog
101. are displayed on the chart Activate the chart page by clicking on the Field vs Time tab at the bottom of the databook window Verify that the event labels now contain the descriptions that you entered on the Events page The chart should look similar to the picture below vt Ef vr TU oU jas Dita cobected dung Dusch Tou 2 7T Adjust Event Label Locations Lets assume that one of the event labels is not completely readable because the line that defines the data in chart is covering part ofthe label You may want to adjust the position of the label either up or down to make the label more readable To adjust the event labels e If not already active activate the chart page by clicking on the Field vs Time tab at the bottom of the databook window e Click the right mouse button somewhere on the chart to display the 2D Chart Properties dialog box e Click on the tab with the name ChartLabels e The dialog box should look like the picture below 2D Chart Control Properties x Axes ChartStyles Titles Legend Chart rea PlotArea E s General Border Interior Font ChartLabels Stop Name Start Offset o Event 1 Event 2 Anchor Best y v IsShowing Add Adjust Center y IsConnected Rot None v Coord Remove X 73 Y 2557 AttachMethod Count 4 Cancel Apply Help e On the left had side of the ChartLabels tab is a tree control that contains 4 entries
102. arious data pages displayed will depend on the type of dataset selected However all dataset sheets will contain an Event data page a Descriptive statistics data page an Order statistics data page a Geometric statistics data page and an Exposure time integral data page Other data pages include a calculation check data page Field vs Time data page Field vs Distance data page Contour map data page 3D Map data page Drawpath data page and an ASCII view data page Each data page can easily be viewed by clicking on their corresponding tab The picture below shows a view of a Databook Window and its various parts 137 Dataset gt Record Type 5 Sample Data 3 datasets Al ES E Dataset i E Dataset2 E Datasets Broadband Resultant Broadband X Component Sass Broadband Y Component 2 227 Broadband Z Component Magnetic Field mG 10 15 AM Juni 11999 Tma Jun 11 1999 10 14 25 AM 10 15 32 AM Ey Projects EMC AL CiData Record Type 5 Sample Data 3 datasets mbk 42 I Events JA Descriptive A Order A Geometric A Exposure Time A Field vs Time M Data Pages 138 Real Time Monitor Window The Real Time Monitor RTM window is located at the bottom of the application window and is not activated by default when you start EMCALC 2000 You can show and hide it by clicking on the Toggle Real Time Monitor button on the toolbar This window is used to view the live data that is
103. ark am Event rectus rn nter Henna ni beside avem ie M ue oa es 71 Marking Events During Data Collection ssesee eene 336 MDX File DescriptlOr 2 42 a tret tin e eee ERO MEL dent FO dera ue 411 Measuring Non linear Paths oooooonnnnccccnnoocccccononcccnononcncnonncncnnnnnnnc nano emen enne enne nennen nnne 382 Modify thie Angle 1i crt cerei ence HR rode P EE DAE RES 124 Modifying the Path n edm ica enter 245 N New Features in EMGALC 1 ee ea ch ete eee ue e eun eee e ia d 12 NeW TLODIC A A EN eR RE REL Rae 135 151 O Open a leia A ER LEHRE 35 Open Another Ellen eor teret Lente tee en LH Hahn 51 Open the Data File ici ae Lene dut aon te He eee 86 Open the Quick Tour 5 Sample File sse eene eene 108 Open the Quick Tour 6 Data File ssssssssssssseseeeeeeemere nennen nee eren nnne 119 Openinga Databook terree ee nenn nn de ede d nde d dd 146 Order Statistics Data Page een nen nn dh rn 224 P Page Setup ze a at tt ee ete 178 179 Performing Electric Field Measurements oooononcccnnnocccccononcnccononcncnononcnnnn nana eene 402 Power Requirements of EMDEX ll ssssssssseeseeeneeee eene enne nn en ne rrerrnnn nns 343 Preparing for Electric Field Measurements ssssseseeee eene 401 Previous SUBCALC RESICALC UsSers sss eene nc narran ener ener nnne 15 Prtit d Chariot TO 283 Prntthie hart sudor cce a eec ocior mac T fe
104. ate Ond Type 2 Sampie Data mbk Datsset Number 1 roon Number 1 0 sion Number 20 Broadband 4 Harmoni e Resuttant OS Hormal Biop Time OryDi 932 10 48 15 AM Mu Broadband Result 21 20 mG Ma Harmon Rosutant 57 60 mo Mas Broaddand E Not watlabie Max Harman E Not vallas ParartFta SAMPLE Description Working in offen at home Rat Tee 2 Lint Tyee EMDEX II 001 Mumbse of Clicks Hot Adela t Direction Made Not Avatstee Eancatenater File hin Converted EMDEX 1x File No Converted EMDE File No Converted to LINDA Flo Na XY Origin Coordnatas Nat valable 00 Berrios J one ASCII Data Page data section after using the vertical scroll bar 228 une S Sep3099 05 3325 Sewa 05 3335 Senao 053345 1031 Sep Ssnij099 053435 Serge 053445 Sendan 093435 The following fields are shown in the data page header File contains the name of the EMCALC databook represented Dataset Number contains the number of the dataset represented EMCALC Version Number is the EMCALC version used to download the data from the meter TT Basic Version Number is the version of the operating program in the meter used to collect the data Bandwidth displays the selected frequency response for the dataset See Broadband Fundamental and Harmonic Data Storage displays the setting of the STORAGE option on the EMDEX ll for this dataset S
105. ay is blank press the EVENT button until the word STANDBY or LINDA is displayed Cancel When everything is ready to begin downloading click the OK button Canceling at this point will return you to EMCALC 2000 without trying to communicate with the meter EMCALC 2000 will attempt to open the port If the port is unavailable and cannot be opened for some reason EMCALC 2000 will prompt you with the following dialog box allowing you to retry after you have corrected the cause of the communications failure EMCALC 2000 x x Could not communicate with the EMDEX 178 The problem can be one of the following The EMDEX is not tumed on The EMDEX cable is not plugged in properly The COM port specified in the setup is incorrect Please check these conditions before proceeding Cancel If the port was opened successfully EMCALC 2000 will prompt you with a Save As dialog box where you can type the filename to which the downloaded data will be saved Type in any valid filename up to 256 characters An extension of MBK will be automatically appended to the filename Once you click the OK button EMCALC 2000 will check that the entered filename doesn t already exist that you re not trying to save to a read only disk and that it contains only valid characters valid characters are letters numbers a space and underscore characters EMCALC 2000 will then establish communications with the EMDEX II meter and
106. begin to download the data The EMDEX II meter will display Comm PC on its LCD while downloading e During the download a status message is displayed that indicates the dataset currently being downloaded and the number of bytes that has been downloaded Communication Downloading Data Set 1 of 1 Bytes Read 1792 LIT II II E e Once the download is complete a dialog box will prompt you for the date time and descriptions of each dataset If external probe data is included in the dataset the External Probe field is enabled which allows you to select the external probe you used Amp Logger 50Hz E Probe 60Hz E Probe or Other Selecting Other enables the user to specify a custom calibration constant for the data gathered by an unknown external probe If you always use the same external probe it is easier to set the default in the global options Units Calibration tab and those settings will be always entered as default in the Download Information dialog box Download Information ENDEX E 0 Brosdaand Resulted 15 EMOEXT 0 Broad amp Henn Reuter 2 XYZ 30 EMOEXI 0 e The date and time should be correct so you only need to enter a description If the date and time are not correct then double click on the field to bring up a dialog box that lets you modify both entities Only the first dataset can be modified since all the other datasets are dependent on it s start date time 179 08 09 1999
107. bottom of the tree control will select the last item in the tree which will most likely be another dataset Since coping a dataset into another dataset is not allowed in EMCALC 2000 you will receive an error message and the sequence will exit 156 Deleting a Dataset To delete a dataset from a databook e Right click on the dataset name in the workspace window tree e Choose Delete from the context menu Or e Right click on the dataset tab and select Delete from the context menu 157 Creating a Group Dataset If you want to know what the statistics were for all the datasets combined then you need to create a Group dataset A group dataset is a new dataset that contains statistics and a single chart for all the datasets combined A Group dataset does not have an Events tab or an ASCII Data tab and they cannot be created To create a Group dataset e Right click on the databook name in the workspace window tree e Choose Create Group Dataset from the context menu e Anew dataset tab named Group will be added to the databook window and it will be activated You cannot rename a group dataset and it is always the last dataset in the databook e You will notice that the icon placed on the tree and in the tab for the Group dataset is different than a normal dataset This option will only be enabled if there are two or more datasets in the databook and all of the datasets are of the same type same record type and sampl
108. box Activate any 3D chart page such as 3D Map or Contour Map Right click on the 3D chart itself to bring up the 3D Chart Control Properties dialog box With the Show All Chart Edit Properties box checked the 3D Chart Control Properties dialog box should look like the picture below Chartres PlotCube ChartLabels View3D Levels ChartStyles Cor Axes ChartGroup Styles Titles Legend General Border Interior Image About IsBatched v IsDoubleBuffered UseTrueType Load Save Cancel Apply Help Click on the Load button to display the standard Windows Open dialog box Browse to your installation directory and select the file named Default3Dchart OC3 Click on the Open button to load the default chart Your screen will look similar to the picture below 285 EMCALC 2000 08 kY Line Mag b pie La yew Commaican Lock inem tine alexi Osu e at MO t th aR proe eel rem aoe Leve Cattle Cons aes nase Sues The Legend General Horde inire Image Asse EMCALC 2000 Cord 30 Chart Terginte eti Von NI o Hanes cs 200 En 4 My e 109 949 Mabe Gustce abore hen save Fes Chir uti Te Save Dulon on Pe Corto b forts Ji J One A Genetic Donum Tre T Dem mane mm 7 Resch I Note if you want to view the default 3D chart as a Contour Map go to the ChartGroup tab General sub tab an
109. cation until it has been properly registered To exit EMCALC 2000 e From the File menu select Exit e f any databooks have not been saved you will be prompted to save them 27 Accessing Help Help contents You can access the EMCALC 2000 help system by doing the following From the Help menu select Contents The Help Contents tab appears select the book or page or use the Index or Find tabs Uninstalling EMCALC 2000 To remove the EMCALC 2000 software from your system 28 Go to the Windows Control Panel Open the Add Remove programs icon Choose EMCALC 2000 from the list Click on the Add Remove button Follow the instructions The Uninstaller does not remove any files that it did not put on your system Therefore after the Uninstall process is complete you may need to manually remove any data files that you created with the application You will also need to manually delete the EMCALC 2000 directory using the Windows Explorer Quick Tours 29 What are Quick Tours Quick Tours are short hands on tutorials that help you get up and running quickly with the new EMCALC 2000 program Each Quick Tour is designed to take a short amount of time 5 15 minutes so you can mix and match them to get the specific training you desire Quick Tour 1 Open a sample file view and print the results Quick Tour 2 Collect data with an EMDEX Il download view statistics and charts Quick Tour 3 Creating a Group dataset
110. ce Tree e Choose Create 3D Map from the context menu e This will add a new page to the databook window called 3D Map and it will be activated This page contains a 3D surface chart that looks like the picture below EMCALC 2000 Point Sowce A Rh pu Ed yew Conmancaton Look Wirken teo agi xi DaQ etim na e 3 were An elector tan arci a field ation cod f Dataset t mda ganar Qe Record I pps Sample C W Ove 2 Pori sorce pq 08 g 74 t oe O Damme a AAN 2 er a a 0 i Wv IM ARO e You can rotate the chart by clicking on the rotation buttons on the toolbar Rotate MM Rotate Counter Clockwise Elevate Up E and Elevate DI Down i e Try clicking several times on each button to see the chart from different perspectives e Click on the Reset Elevation Rotation button put the chart back to the default perspective view e You can look at the various components of the magnetic field X Y Z or Resultant 54 by clicking on the corresponding component button on the toolbar Try clickin Resultant field g on the X Component Lx Y Component ur Z Component E and R buttons respectively to see the different components of the magnetic 55 Create a Contour Map Unless you specify otherwise a Contour Map is not created when you open a record type 7 LINDA dataset You can change this default action in the General tab on the Options dialog box A Contour map di
111. ched However the EMCALC 2000 mapping feature will not be able to create an accurate representation of the path unless each direction change is recorded in the EMDEX II 377 The Effect ofthe LINDA Measurement Wheel on Field Measurements Both the bracket and handle on the LINDA Measurement Wheel are composed of non magnetic aluminum to minimize the effect on the LINDA Compass Field tests indicate that the direction bearing taken with the compass can be affected by less than 5 A determination of the effect of the 063 aluminum bracket on the EMDEX II magnetic field readings was conducted in fields of 100 mG and 200 mG along an axis perpendicular to the EMDEX II and the bracket When the bracket was in contact with the EMDEX ll the field was attenuated less than 2 at both 100 mG and 200 mG 378 Effects of Terrain Jolting or jarring motions as would be present on rough terrain affects the EMDEX II magnetic field measurements in two ways First the meter is influenced by motion in the Earth s magnetic field see Appendix J causing a higher than actual reading Second the ferrite cores of the sensor coils generate signal noise when they are subjected to rough vibration This signal noise includes the broadband frequency response of the meter and causes a higher than actual reading If either of these motions coincide with the EMDEX II s sample interval the magnetic field measurement will be higher than the actual power frequency f
112. cuit components of the harmonic filter The comparison between theoretical and measured circuit performance demonstrated that the EMDEX II harmonic filter is within expected tolerances Gain Db 100 am ann EU SO 500 LH 100 Frequency Hz 302 As shown in figures above the value of 5 the difference between the true and the measured value due to filtering depends on frequency In general 5 is chosen as the maximum error for any frequency Consequently when the error criteria is exceeded it implies that the calculation of the fundamental value may exceed the error limits It is possible in such cases that the reported fundamental values are indeed correct The default value for 6 used in the EMCALC 2000 calculations is 0 20 and corresponds to the maximum differences about 2096 that can occur due to the harmonic response The value for e the fractional error of the fundamental calculation is chosen arbitrarily to yield an allowable percent error in the fundamental EMCALC 2000 has been modified to take into account this limit and uses a default value of 2096 0 20 The user can adjust this allowable error value in EMCALC 2000 303 Appendix B 304 Saturated Data EMDEX ll and EMDEX LITE meters are auto ranging magnetic field meters This means that each type of meter has several predefined magnetic field strength intervals or ranges for making measurements These meters change from one field range to another automatic
113. d uncheck the IsZoned IsMeshed and IsShaded check boxes It does not matter which chart 3D Map or Contour Map you edit the same default chart it used for both types EMCALC 2000 automatically sets these check boxes depending on the chart type e You can customize most of the attributes on this chart using the 3D Chart Control Properties dialog box e When you have finished your customizations go back to the Control tab on the 3D Chart Control Properties dialog box e Onthe General sub tab click on the Save button to display the standard Windows Save As dialog box e Again select the file named Default3Dchart OC3 file and click on the Save button e Answer Yes to the question about overwriting the file e This will overwrite the old default chart with the new customizations that you set up e Click on the OK button e To see your new changes applied to the current chart choose View Reconstruct Chart from the main menu and answer Yes to the question e The attributes from the default 3D chart will be applied to the data for the current dataset e You can save your new databook if you want e All new 3D Map and Contour Map charts that get created from now on will have the attributes of the default 3D chart Any existing charts that had already been customized will keep their customizations If you want to apply the new default 286 chart attributes to an older customized chart then use the View Reconstruct Chart opt
114. dent on the degree of the field s polarization At one extreme the resultant for a linearly polarized field i e where the minor axis m is zero is equal to the major axis value The maximum field reading produced by a single axis meter would be equal to the resultant At the other extreme the maximum difference between a single axis meter reading and the meter occurs when the magnetic field is circularly polarized i e the major and minor axis are equal in that case the resultant is V2 or 1 41 times greater than the magnitude of the major axis 402 Appendix J 403 Rejection of Earth s Magnetic Field The EMDEX II and EMDEX LITE are designed to measure AC magnetic fields from 40 800 Hz and 40 1000 Hz respectively Fields at other frequencies are attenuated by a specified rejection factor The earth has a 300 600 mG DC magnetic field If the meter is rotated or moved in this field its sensors will pick up a low frequency AC field due to the meter s changing orientation in the DC field The EMDEX II and LITE are designed to strongly reject these low frequency fields Typically the meters are worn in a belt pouch While walking normally they measure an average field level less than 0 03 mG due to the earth s field occasional peak readings of 0 1 or 0 2 mG may occur due to random worst case motions Shoulder mounted meters typically have even lower readings An instrument worn in a loose pocket will have slightly higher readings
115. dialog box will look like the picture below 246 3D Chart Control Properties x Chart rea PlotCube View3D Levels ChartStyles Axes ChartGroup Styles Tiles Legend ContourStyles a General ei LineStyle Color Style2 Style3 RGB 0000s0 m Style4 Style5 x Name NavyBlue Add Remove Count 12 Cancel Apply Help The number of ContourStyles should always be one more that the number of ContourLevels Notice that the number of styles in the tree is twelve This is also denoted by the Count 12 text located below the Remove button Remember that the number of ContourLevels was eleven There is a tight correlation between the ContourStyles listed in the Styles tab and the ContourLevels listed in the tree control on the Levels tab Style1 is used to denote field levels up to Level1 Style2 denotes fields between Level1 and Level2 Style3 denotes fields between Level2 and Level3 and so on Style12 is used to denote the fields that are greater than the highest level Level11 defined on the Levels tab Select the style that you want to change in the tree control and it s current data will show up in the tab on the right There are three fields on this tab that let you change the color of a Style The RGB field define the amount of Red Green and Blue color to mix in order to come up with a new color only geeky programmers know what this hexadecimal
116. ding the lt gt or lt gt button down respectively Start walking in the new direction The measurements automatically resume 371 372 Stopping Data Collection with LINDA Once you are finished mapping with your LINDA wheel you can stop data collection by e Hold down both the lt gt and lt gt buttons e While the lt gt and lt gt buttons are still held down press the EVENT button e The EMDEX II displays stop n where n is the n data collection made since the meter was last turned on Up to 20 data sets can be recorded before the data must be transferred The meter then goes into standby mode and displays the word LINDA on it s LCD e n standby mode you can transfer the data to the computer or store the device for a short period until beginning the next data set The EMDEX Il enters a sleep mode to conserve You may use the same measurement options as the previous data set by starting another data set or you may change the options Important Be sure to transfer the data to a computer when finished f the EMDEX Il is allowed to sit for an extended period with the battery at 0 the data may be lost 373 How to Use the Compass A compass is mounted on the LINDA Measurement Wheel to help you determine direction changes during a measurement session The figure below shows the essential parts ofthe compass Direction of Travel Arrow Bear In car Alignment p Bearing P Compass Needie Adjustmen
117. dows Enhanced Metafile format True Type Fonts specified whether to use true type fonts in the 3D and Contour Map chart displays If this option is turned off then vector fonts are used Set Max Rows Cols controls the algorithm used to map the known data points for a LINDA file into a set grid pattern that can be used by the 3D and Contour Maps A high number will cause more points to be generated in the X Y grid resulting in a smoother plot A low number causes fewer points to be generated in the X Y grid resulting in a courser plot Higher numbers cause the calculations to take longer and require more memory to complete the chart At some point you get diminishing returns with this value and no change can be seen in the resulting chart A reasonable number for this value is 50 but you can play with it depending on your data and the power of your PC 206 Communication Tab This tab is used to set up the options for communications between your PC and your EMDEX meters The Communication Tab looks like the picture below Resultant Broadband Resultant 4 seconds v BIGWSELT The fields are described below EMDEX II Parameters These are the default parameters that show up in the Set EMDEX II Parameters dialog box when you choose Communications EMDEX II Set Meter Parameters from the main menu EMDEX Program This is the default setting on the Upload EMDEX II Program dialog box when you choose Commu
118. e 3D Chart Control Properties dialog box Note you are not required to view the Levels tab when changing the color or line style of the contour lines It was only listed in the steps above so you will understand the relationship between a Level and a Style 255 Changing Contour Levels The default contour levels that are created for every contour chart are 0 5 1 2 5 10 25 50 100 500 1000 and 3000 You can add and remove as many contours as you like You can even let the chart control automatically pick contours for you though you won t get nice round numbers for the contour levels To change the contour levels 3D Chart Control Properties Eg Remove Click the right mouse button on the 3D Map chart to display the 3D Chart Control Properties dialog box Next click on the Levels tab This tab lets you define the contour levels that are used to draw the contour lines on the chart Notice that the eleven ContourLevels defined for this chart are 0 5 1 2 5 10 25 50 100 500 1000 and 3000 The number of levels is denoted by the number 11 in Levels field which is located above the Load button The dialog box will look like the picture below Axes ChartGroup Styles Titles 7 Legend Chart rea PlotCube View3D ChartStyles ContourLevels 4 General IsDefault levels LN 0 El Add Cancel Apply Help Click on the Add button to add a new con
119. e intend pate cnn ep ete ne abs 394 Sensor Description e eed t eret eei un hen 395 Preparing for Electric Field Measurements sseeene 396 Performing Electric Field Measurements sse 397 Magnetic Field Measurments ooooonoccccnnnocccccnnoncccnonannncnonanncncnn nn nemen 398 Appendix I 399 The Magnetic Field Resultant Calculation and Polarization 400 Appendix J 403 Rejection of Earth s Magnetic Field sssee 404 Appendix K 405 MDX File Descriptio ea e a a nenn 406 The Data File Header irr dd ed erede dere tts 407 Data Seti Headers nii ede ere ro dee ederet 409 Data Record Type Vice 25 nite te rte dee der 413 Data Record Type Z eniin pe ettet e b ederet 414 Data Record Type S 322 222 ee eda deret ede E deren 415 Data Record Type 4 4 a beber 416 Data Record Type b ei ecd erede dee Edere 418 Data Record Type 6 iie e eee eden ederet 419 Data Record Type 2 eie ee ie eed edere eere EE 420 Introduction to EMCALC 2000 Welcome Welcome to EMCALC 2000 This is the latest version in a long line of communications and analysis software that was designed specifically for your EMDEX Il and EMDEX LITE EMF meter EMCALC 2000 is a completely new 32 bit application that runs on Microsoft Windows 95 98 or Windows NT This new program contains many of the same features of the earlier versions and contains several new features unique to this product
120. e 00 00 00 January 1 1970 Data Set Header addresses This is an array of 20 4 byte addresses for the Data Sets in this file Each n element consists of the byte offset location of the n Data Set Unused offsets are set to OXFFFF hexadecimal EMCALC Version number Reserved for future use Data Set Headers There is one Data Set Header for each Dataset in the MDX file An MDX file can contain a maximum of 20 Data Sets Each Dataset is preceded by a 100 byte Dataset Header with the format shown in the table below o pg eo wor O gt o N O oat A gt Description Data stored 0 resultant 1 resultant and E channel Bandwidth 0 broadband 1 broadband and harmonic Operational mode always 0 Diagnostic code Prior to the first measurement in a Data Set the EMDEX Il hardware performs a hardware diagnostic The result of the diagnostic is encoded in this field see Appendix L A non zero value indicates an error Sample rate in units of 10 ms If set to 1 then use the sample rate starting at offset 90 Number of event marks in the Data Set Percent useful battery voltage remaining at the end of the Data Set Number of data frames records in the Data Set The EMDEX II uses this field to record the number of 10 ms intervals the unit has been on When the Data File is transferred to the PC the 409 410 P KN ON o 0 gt NN ON on AN WN NN O0
121. e Data Pages section of this document 275 3D Charts The 3D Map and Contour Map are created using a 3 party tool called OlectraChart 3D This tool is very powerful and is highly configurable by the user Whenever you click your right mouse button on a 3D chart the 3D Chart Control Properties dialog box is displayed This dialog box contains several tabs and sub tabs that allow you to customize just about everything on the chart If you check the box titled Show AII Edit Properties on the General tab of the Options dialog box then even more tabs appear on the dialog box In this mode you can change anything on the chart Be careful though because it will even allow you to edit the data in the chart The charts do require a lot of memory Depending on the configuration of your PC and how much data is in the chart it could take a significant amount of time to generate the charts In order to improve performance you should only create the charts that are necessary By default EMCALC 2000 creates the Field vs Time or Field vs Distance charts when a new databook is opened You can manually add the 3D Map and Contour Map charts if necessary For instructions on how to do this see the topic titled Adding Data Pages in the Data Pages section of this document 276 Reconstruct a Chart Since you can customize just about everything on the charts you may find yourself in a situation where you have customized too much Since the 2D and 3D Chart
122. e chart sssssssssese eene enne 273 D Data Pages ie e te it atan 170 171 Data Record Type i tette iind lee 418 Data Record TYPE Z rriren enteignet 419 Data Record Ty USUS 420 Data Record Type 4 O 421 Data Record Type 5 etti ien etie esq titi deb ti edel 423 Data Record A ete idee ec ede needed 424 Data Record Type 7 2 REM 426 DataSet Headers ehrt era oeignb ein 414 Databook Piles4a UEM 143 DatabooKPro erflies zu een a pda SEP era 152 Databook WindOoW ee gta neo eo 139 Dataset Properties sanieren HE RED etel cete edet Rete 166 167 BEC EEUU 154 Deleteca Copied Glhiart s t ea een 286 Delete a Group Dataset 2 re rent tie tuse hu i tutela redu ata echtes 162 Delete and Ein LI ILI IUIUS 218 BIS UIDEERBIICIIIS E 159 Descriptive Statistics Data Page nee ea 222 Download the Dat is eintritt textil emer n exce uai ce aeter ba ba 74 Downloading Data from an EMDEX Woeii aeee naan EEE nennen nennen nennen 182 Downloading Data from an EMDEX LITE sssssseeee eem emm enn eren nennen nnns 191 Drawpath Data Page u trt tette ie ee menge decididas 242 422 E Edit an Event ars A ee tbe kon et ovid ee erus 219 Editthe Event Marks ura ded A td ti n 76 Effects ot METAN en en dia 384 EMDEX II Broadband Frequency Response 40 800 Hz oooooocccicocccccoconcnicononcncconananccnnannnnnnnno 348 EMDEX Il Communications Checklist esses
123. e charts Note in this version of EMCALC 2000 the cursor readout is limited to the first series in the chart which is always the Broadband Resultant series This is true even ifthe Broadband Resultant series is hidden 273 Chart Basics 274 2D Charts The Field vs Time and Field vs Distance charts are created using a 3 party tool called OlectraChart 2D This tool is very powerful and is highly configurable by the user Whenever you click your right mouse button on a 2D chart the 2D Chart Control Properties dialog box is displayed This dialog box contains several tabs and sub tabs that allow you to customize just about everything on the chart If you check the box titled Show All Edit Properties on the General tab of the Options dialog box then even more tabs appear on the dialog box In this mode you can change anything on the chart Be careful though because it will even allow you to edit the data in the chart The charts do require a lot of memory Depending on the configuration of your PC and how much data is in the chart it could take a significant amount of time to generate the charts In order to improve performance you should only create the charts that are necessary By default EMCALC 2000 creates the Field vs Time or Field vs Distance charts when a new databook is opened You can manually add the 3D Map and Contour Map charts if necessary For instructions on how to do this see the topic titled Adding Data Pages in th
124. e databook Always create Field vs Time indicates whether all new databooks opened in EMCALC 2000 will automatically create a Field vs Time data page for each dataset containing time series data within the databook Always create Field vs Distance indicates whether all new databooks opened in EMCALC 2000 will automatically create a Field vs Distance data page for each dataset containing spatial series data within the databook 199 Always create Drawpath indicates whether all new databooks opened in EMCALC 2000 will automatically create a Drawpath data page for each dataset containing spatial series data within the databook Always create 3D Maps indicates whether all new databooks opened in EMCALC 2000 will automatically create a 3D Map data page for each dataset containing spatial series data within the databook Always create Contour Maps indicates whether all new databooks opened in EMCALC 2000 will automatically create a Contour Map data page for each dataset containing spatial series data within the databook Always create ASCII view indicates whether all new databooks will automatically create an ASCII data page for each dataset Since creating an ASCII data page may take some time depending on the size of the dataset we recommend not selecting this option and creating the ASCII view when needed Always create Group Dataset indicates whether all new databooks will automatically create a Group dataset page when a new databook is
125. e directory in which you wish to save the ASCII file and enter the name of the ASCII file e When finished click the Save button e The file will be created on your hard disk 235 Drawpath 236 Drawpath Data Page The Drawpath data page displays an overhead map of a LINDA dataset path The map can display the locations along the path where data were taken and where an event marker was entered Adjusting a data point angle can modify the path Directional corrections to the points along the path can be made at any existing vertices a point in the path where a change in direction occurs or any data point along the path to create a new vertex Drawpath options are set through the dataset options chart tab EMCALC 2000 Focord Type 7 b De La Yow mrt Inh Miri He TLLA RU sa Deu se SF rio i pee ee ul Domes 2 eset 2 D Wak Dovetomn SA Record I pps 2 Sanpla C 8 Dumont t Pont force li De 3 Das 2 The legend to the right of the screen displays the symbols used on the map O shows the location of event marker on the path if the Show Event Markers option is set shows the location of the beginning of the path x shows the location of the end of the path lt shows the location of field measurements on the path and the direction of the LINDA Measurement Wheel 237 238 The Drawpath Toolbar The active buttons on the Drawpath toolbar are described below 1
126. e eene 369 Sensor Description ret ern en lea 400 Set the GOM Port sew Acne lie il id ii eae 66 Setting Measurement Options sssssssssseeee nenne nennen eere nnne n nnne nns 325 Setting the Data Storage dee dee iaa 329 Setting the Direction Option en ee ee erden 371 Setting the EMDEX Il Display Options sseeen meme 391 Setting the EMDEX Il Sample Rate ssssseseeeneeeene nennen nennen nnns 392 Setting the EMDEX Il Storage Options ssseseeenn nnne 390 Setting the Frequency Response sss eene eene enne nn nara ennemi nennen nnns 328 Setting the LCD Display iecore ce tes nage Rn re 331 Setting the LINDA Display Options ssesseeeeeenn ennemis 372 Setting the Sample Rate sssssssssssssseeeee nennen nnnm nennen nennt ennemis 326 StartEMGAEC 2000 2 to oe piece Eden 34 Start Real Time Monitoring ici cereo ceto ln ad he en 67 Starting and Exiting EMCALC 2000 aieiaa anaa ia eaa AROERI eene nere nennen enne nennen 28 Starting Bata Gollectloni ueste ee rte ae ee 334 Starting Data Collection with LINDA sseeee nnn emen emnes 375 STAUS CS etn 221 otop Data Goll amp ctlOn 5 nn rennen Mein 72 Stop Real Time Monitoring oce eA Anne ne ete tele Le 73 Stopping Data Collection tree ein un 337 Stopping Data Collection with LINDA 2444440s0ensnnnnennnnnnnnnenennnnennnnnnnnanennnner
127. e field under the Printer heading If not then choose the correct printer from the drop down list box Click on the OK button A status message will be displayed indicating that the chart was sent to the printer Retrieve the printout from your printer Print the Event List To get a printout of the events in the dataset Click on the Events tab at bottom of the databook window This activates the Events data page Change the orientation of this page to landscape by choosing File Print Setup from the main menu On the Print Setup dialog box click on the Landscape radio button then click on the OK button Click on the Print button on the toolbar to bring up the Print dialog box Make sure the printer that you want to send the event list to is currently selected in the Name field under the Printer heading If not then choose the correct printer from the drop down list box Click on the OK button A status message will be displayed indicating that the event list was sent to the printer Retrieve the printout from your printer 49 Open Another File Let s look at a file that contains record type 7 data Record type 7 data is spatial as opposed to time series data that was collected using the LINDA LINear Data Acquisition wheel An electric fan was placed in the middle of a room and a magnetic field generation coil was placed in one corner The LINDA wheel and an EMDEX II were used to map the magnetic fields Ope
128. e meter should have the word on displayed on its LCD e You are now ready to collect data using the new parameters that you selected 192 Real Time Monitoring While recording measurements with an EMDEX II or EMDEX LITE meter the data displayed on the meter is also sent out to the communications port Thus it is possible to monitor live data as the meter is collecting measurements The Real Time Monitor RTM window displays the live measurement data that the meter is collecting EMCALC 2000 will automatically detect whether an EMDEX II or an EMDEX LITE meter is attached and format the output accordingly To display the RTM e Make sure that your meter is on and collecting data e Make sure that the serial communications cable is plugged into the meter e Click on the Toggle Real Time Monitor button on the toolbar e This will display the RTM window at the bottom of the EMCALC 2000 application window If monitoring an EMDEX II the screen will look similar to the picture below mme 193 The columns for the EMDEX II RTM are described as follows Bandwidth the filter that was used to collect the data record This can be either Broadband 40 800 Hz or Harmonic 100 800 Hz B scale the gain setting scale that the auto ranging circuitry was on when the magnetic field data record was collected This can be 0 1 or 2 depending on the magnetic field intensity This value is only provided for technician
129. e rate If you always want a Group dataset added for every databook then make sure the Always Create Group Dataset box is checked on the General tab of the Global Options dialog box The picture below shows and example of a databook in which a Group dataset has been added 158 en 101630 AM 1034 AM 101450 4M 1015004M 3015104M 103520 AM 101530 AM AENA Tem dun A 1296 101425 AM 101532 AM 159 Delete a Group Dataset To delete a dataset from a databook e Right click on the Group dataset name in the workspace window tree e Choose Delete from the context menu Or e Right click on the Group dataset tab and select Delete from the context menu The Group dataset will be removed from the databook window and from the Workspace tree 160 Create a Subset Dataset Sometimes you may want to create a new dataset that consists of a portion subset of another dataset For instance you may want to pull out just the time series data between 8 00 AM and 5 00 PM for a separate analysis You can do this by creating a subset dataset You create a subset by using a data window which specifies two points between which measurement data are to be analyzed After defining a data window only those portions of the data which fall within the data window are used to create the new dataset Data windows can be defined as periods of time between event markers between date and time stamps or between distance l
130. e sample rate LCD display units and LCD display options are programmed into the meter using the EMCALC 2000 software See the topic titled Change EMDEX LITE Parameters in the Communications section of this document Once the appropriate meter parameters are selected the LITE is simply turned on for the duration of the measurement session The operating parameters and the operating program are stored in the meter and remain if the unit is powered off The data must be tranferred to the PC before the unit is turned off Power Switch Data Collect Switch Communications Port 349 Hardware Versions of the EMDEX LITE There are two hardware versions of the EMDEX LITE the Standard LITE which measures power frequency magnetic fields in the range 0 05 700 mG and a High Field LITE which measures fields in the 0 005 70 G 5 70 000 mG range If the unit is a High Field LITE it is indicated on the front label of the meter otherwise the unit is a Standard LITE Both hardware versions of the LITE measure a frequency range of 40 1000 Hz The Standard LITE and High Field LITE require different operating programs Fortunately EMCALC 2000 automatically determines which unit is connected and installs the appropriate operating programs 350 Changing the Battery The LITE runs off a standard 9V battery housed in a small battery compartment located in the backside of the unit behind the plastic slip cover We recommend that you use
131. easurement error the measured broadband reading would be 100 mG and the measured harmonic reading could be 95 mG In this case the calculated fundamental value would be 31 2 mG which is erroneous and the ratio H B is much greater than 0 86 This is the worst case scenario when the EMDEX II is taking measurements in a purely harmonic environment little or no 50 60 Hz is present Again however the broadband and harmonic values would be OK it is the calculated fundamental that has the potential for a problem The table below provides another hypothetical example of a situation which may cause problems with the calculated fundamental due to tolerance errors in the EMDEX Il The B H F B H values for are assumed to be the true values Values for and are measured and F is calculated from them Some of these situations may be rare and even in 50 60 Hz environments with large harmonic fields as previously shown in example 2 the EMDEX II measures well within accuracy specifications The strength and frequency of the harmonic field are the key factors in determining the extent to which this problem can occur Assumed True Values EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 EXAMPLE 4 Trans Line Industrial Airplane Equipment B 100 mG B 100 mG B 100 mG B 100 mG H 10 mG H 70mG H 100 mG H 80 mG F 99 5 mG F 71 4 mG F 0 mG F 60 mG Assume component tolerance amp filtering variation 6 5 9 20 Bm 100 mG Bm 100 mG Bm 10
132. ect the bb amp har option 323 Setting the Data Storage The STORAGE measurement option is used to select what data is to be stored You may store the resultant magnetic field or both the resultant magnetic field and electric field To select the Data Storage e Select the STORAGE measurement option e The LCD displays the current Data Storage selection resultnt resultant magnetic field only rsIt amp E resultant magnetic field and electric field or rslt xyz resultant and x y and z components of the magnetic field e Continue pressing the lt gt or lt gt buttons to toggle between resultnt rslt amp E and rsit xyz e Setthe Data Storage to the value on the LCD by pressing the EVENT button STORAGE appears on the LCD indicating you have completed the selection Storing the Electric Field The EMDEX II is not supplied with a sensor to measure the electric field you must either purchase one like the Enertech E Probe or supply one that produces a known current in nanoAmperes per Volt meter of electric field strength The sensor plugs into the EMDEX Il using a subminiature phone jack Switchcraft model 850 mating plug or equivalent The sensor current to electric field ratio called the Electric Calib Constant is entered in EMCALC 2000 software and is used to compute the magnitude of the electric field See the topic titled Units Calbibration Tab in the Program Options section of this document To set the data st
133. ectory in which the file will be created Click on the Save button A comma separated text file with the name you specified will be created in the directory that you specified You can now view the file with the Windows notepad application or you can import it into a spreadsheet such as Microsoft Excel 81 Close the Databook Since the databook was modified when you customized the chart and created an ASCII Data view you should save the databook before closing the file e Choose File Save from the main menu or click on the Save icon on the toolbar A status message will be displayed in the status bar at the bottom of the application window The word Ready will be displayed when the file has been saved to disk e You can close the databook by first activating the databook window and then choosing File Close from the main menu Another way to close the databook is to right click on the databook icon named My First Data in the Workspace window and then choosing Close from the context menu Exit EMCALC 2000 e Choose File Exit from the main menu This concludes Quick Tour 2 82 Quick Tour 3 83 Introduction to Quick Tour 3 In this quick tour you will open a data file that contains 3 datasets You will learn how to create a group dataset which allows you to obtain statistics on the combined data of all the datasets in a databook A group dataset can only be created if all the datasets in the databook contain the same t
134. ectric field sensor was designed for performing electric field measurements with the EMDEX II electric and magnetic field meter The E Probe consists of two aluminum plates calibrated to produce an induced current which the EMDEX II meter can read and convert to determine an equivalent electric field measurement value The E PROBE has a range of 0 010 to 13 kV m 10 to 13 000 Volts per meter with an accuracy of about 5 and resolution of about 1 V m this conforms to the IEEE Standard Accompanying the E Probe sensor is an insulated expandable fiberglass pole instruction booklet and software 394 Sensor Description The E Probe consists of two aluminum plates separated by four insulated nylon spacers The EMDEX II field meter should be placed between the two plates during electric field measurements The lower plate contains three plastic guides for locating the EMDEX II field meter Two small plastic pads are located on the upper plate to help prevent the EMDEX II meter from sliding out from between the electric field sensor plates during use A square acrylic cube is mounted underneath of the lower plate to allow the fiberglass handle to be screwed into it The figure below presents a diagram of the E Probe with an EMDEX II meter and the fiberglass handle EMDEX Il Meter Fiberglass Pole Upper E Probe Plate Sensor Lower Plate Connector to AUX Jack Bushing 395 Preparing for Electric Field Measure
135. ee the EMDEX II User Manual 229 Operation Mode displays the setting of the OP MODE option on the EMDEX ll for this dataset See the EMDEX II User Manual Diagnostic Code is the result of an internal diagnostic run during the operation of the EMDEX Il A non zero value represents an error Sample Rate is the time taken between measurements Number of Events is the number of event markers in the dataset End Battery displays the of remaining usable battery voltage at the end of the dataset measurement Number of Records shows the total number of data records or measurements in the dataset Saturated Data Records shows the total number of saturated data records or measurements in the dataset Half Bin Width Added indicated whether half bin width was added to all data records or measurements in the dataset Filler Records shows the total number of filler records in the dataset This value is carried over from EMCALC 95 and will always be set to zero for any new datasets created with EMCALC 2000 For all EMCALC 95 users who open old MDX files with EMCALC 2000 see EMCALC 95 user manual for a description of filler records Start Time is the start time of the measurements in the dataset Stop Time is the end time of the measurements in the dataset Max Broad Resultant displays the maximum broadband resultant value in the indicated units 230 Max Harm Resultant displays the maximum harmonic resultant value in the indicated un
136. efault 3D Chart sss 285 Convert To LINDA 288 Converting to a LINDA Fie ibisi a aaa mmm 289 Gollecting the Data ie 290 Converting the Data ana Me a sel 293 Appendix A 295 Fundamental Calculation Check 4444442244440 ne nnnnnnnennnnnnnennnnn e 296 Appendix B 304 Saturated Data cioe et ecole iet em aret eerie ee i d tr Rees 305 Appendix C 306 Half Binwidth VIGE e ra e EE A AEE EEE EET A AEAEE 307 Appendix D 310 Using the EMDEX Il Meter nci 40 es HE n re bru 311 Basic Operation of the EMDEX llI sssssssssseeeenee en 312 Tumming on the EMDEX lli cti ttt et her tee t e t 313 EMDEX II LCD Error and Warning Messages n 314 Interacting with the EMDE ll essen nnnm 315 Changing the Battery on the EMDEX ll essem 317 Turning Off the EMDEX II irte re ette te 318 Checking the Status of the EMDEX ll sem 319 Setting Measurement Options sss eem 320 The EMDEX II s Start Up Default Measurement Options 320 Setting the Sample R te eiserne 321 Setting the Frequency Response sssse eem enm 323 Setting the Data Storage iac near 324 Storing the Electric Field ioc riadas 324 Setting the LCD Display score 326 Taking Measurements with the EMDEX ll enn 328 Starting Data Collection itt nodi iit t nett aeter aite ha sede edocti 329 Marking Events During Data Collectio
137. eld vs Distance Toolbar The active buttons on the Field vs Distance chart toolbar are described below show hide the X component of the magnetic field show hide the Y component of the magnetic field j show hide the Z component of the magnetic field show hide the Resultant magnetic field is not available for record type 7 LINDA data show hide the Broadband filter data for all the visible components is not available for record type 7 LINDA data is not available for record type 7 LINDA data m show hide the event marks go to the previous zoom level reset the zoom level to the entire chart 260 261 Customizing the Field vs Distance chart The Field vs Distance chart is created using a 2D Chart Control that is very flexible This control lets you customize many aspects of the chart such as the color of the lines that represent each series the size of the fonts the axis labels the legend style etc To customize the Field vs Distance chart e Right click on the Field vs Distance chart itself e This will display the 2D Chart Control Properties dialog box shown below 2D Chart Control Properties Ed E ChartStyles Titles Legend Chart rea Plot rea ChartLabels pre General Annotation Scale Title ar gt 5 M IsShowing IsLogarithmic IsReversed Asi rercent Cancel Apply Help e This dialog will allow you to make the several common modifications to the chart e t comes
138. elow for the proper way to insert the battery Improper insertion could result in as much as a 2 error in the Y axis measurement value STEP 1 e f you are about to begin a measurement session turn the EMDEX II on e Replace the battery cover until it snaps in place 317 Turning Off the EMDEX II All data and current measurement parameter selections are erased when the power switch is turned off Data collection on the EMDEX II can be started and stopped up to 20 times before you need to transfer the data to the PC If you are making a series of measurements the EMDEX II is designed to be left on in between each measurement session called data sets At the end of a data set the EMDEX II is returned to the STANDBY mode where it waits for 3 minutes before going into a sleep mode With a fresh alkaline battery the EMDEX II can stay in sleep mode for about 6 days retaining all measurement parameter selections and data Pressing the EVENT button wakes up a sleeping EMDEX Il After conducting all field measurements downloading the data and verifying the integrity of the data the EMDEX II meter can be turned off 318 Checking the Status of the EMDEX II The STATUS measurement option is used to display the current status of the following quantities Percentage of remaining usable battery charge The Unit Type of the meter The unit types are 0 Standard EMDEX II 7 High Field EMDEX II Percentage EMDEX II memory re
139. eneral tab Event Descriptive Order Geometric Exposure Time and Calculation Check data pages contain header information pertaining to the dataset at the top of each view followed by the statistical data below The following fields are shown in all data page headers File contains the name of the EMCALC 2000 databook filename Description contains the dataset description Dataset Number contains the index number of the dataset within the databook Start Time contains the start time of the dataset Stop Time contains the stop time of the dataset Number of Records contains the number of records or data measurements in the dataset In addition to the information listed above the Exposure Time data page header displays the following fields Sample Rate the time taken between measurements Bin Type contains the bin type used to calculate the statistics This value can be either linear or logarithmic Total Bins the total number of magnetic field bins and electric fields bins if the dataset contains e field data The Calculation Check data page header also displays the following field Maximum Allowable Error in Fundamental Calculations the current error criterion used in the test to compute the Fundamental frequency This value is set in the Units Calibration tab All data pages can be printed and copied to the clipboard and saved to another file 168 Adding Data Pages To add a data page that currently does n
140. er tests on the data collected Note Copying the ASCII data page my take a considerable amount time depending on the size of the dataset 173 Page Setup The Page Setup dialog box allows you to customize the printed output of the spreadsheet style data pages Events Descriptive Order Geometric Exposure Time Calculation Check and ASCII The Drawpath and chart pages do not allow the user to modify the default page setup These views are always printed using the maximum printable area To customize the printed output e Activate the data page that you want to print e Choose File Page Setup from the main menu e This displays the Page Setup dialog box shown below e Make the appropriate changes then click on the OK button e The changes will take affect when you print Page Setup M M M M M M Margins allows you to specify the left right top and bottom minimum margins on the page 174 Titles and GridLines allows you to specify whether to print row headers column header print frame or outlining grid frame vertical lines horizontal lines and only black and white print that is no data page column header shading or color Row headers and column headers in the page setup dialog box have no meaning in the current version of EMCALC 2000 Therefore checking and uncheck these options will have no affect on the data page printouts Preview shows how the grid view will look after modifying T
141. es dialog box e Next click on the tab named ChartGroup This will display the ChartGroup tab and it s General sub tab is activated e Check the box titled IsZoned and you will notice the contour chart has changed Each contour zone has now been filled with an appropriate color e Also notice that the legend has changed to indicate the field level range for each contour zone e Click on the OK button e Your Contour map should look like the picture below Rb fie Lat Yue Commence Tock inom bila leid paug eetiminal s INT 7 totus An deci tan ed kd ger on cod B 10 t Disiance f E 39 Pasan MOC Da Point Sous rik 58 Save the File and Exit Let s save the Point Source file that you just modified e Select the databook named Point Source in the Workspace window by clicking on it with the left mouse button e Next click the right mouse button on it to display the context menu e Choose Save from the context menu e A message is displayed in the status bar at the bottom of the application window indicating the status of the save process The word Ready appears in the status bar when the file has been saved Close the databooks e Right click on the icon named EMDEX Files located at the very top of the tree in the Workspace window e Choose Close All Databooks from the context menu to close both databooks that are currently open Exit EMCALC 20
142. et in the Data File If the statistics have not yet been computed this field is zero Not used Direction mode for LINDA Measurement Wheel 0 Compass 1 Relative Lt Rt mode Number of direction changes made with LINDA Wheel Address of map record for LINDA data Maximum magnetic scale factor Maximum electric scale factor EMDEX II Unit type 2 Original EMDEX 1 EMDEX II Version 1 2 411 412 Po wo oo oo O oo C1 00 oo o o ao 0 EMDEX II Version 2 x 7 High Field EMDEX II 20 Low Field Low Resolution LITE 21 Low Field High Resolution LITE 22 High Field Low Resolution LITE 23 High Field High Resolution LITE Reserved for future use Byte offset location of the intermittency statistics from this data set in the data file Contains OxFFFF if the intermittency statistics have not been computed Sample rate in units of 10 ms EMCALC Version number used to calculate the descriptive geometric and cumulative distribution statistics EMCALC Version number used to calculate the intermittency statistics Reserved for future use Data Record Type 1 Record Type 1 is a 3 byte record containing the broadband magnetic field resultant Record Type 1 is the default record type when the EMDEX II is first turned on This record type is used when the EMDEX II STORAGE option is set to resultnt magnetic field resultant and the BANDWDTH option is set to broadbnd broadband only Byte Description 0 1 A D
143. ext lower range for the next measurement This will increase the measurement resolution unless the meter is already at its lowest range This methodology for controlling the auto ranging feature allows the meter to record with a maximum sensitivity resolution and still be able to adjust for varying field strengths During measurements situations can occur which cause the meter to record magnetic field values at the uppermost end of a field range before the internal operating program can switch the meter to the next higher field range For example the EMDEX can quickly be placed near a strong field source Or the EMDEX could be programmed with a long sampling interval and moved from a low field area to a high field area in between recording samples In these examples the EMDEX would record the magnetic field value at the uppermost end of its current range setting presumably a lower range The internal operating program immediately responds by switching the meter up to the next higher range in preparation for the next measurement However the current recorded measurement data are inaccurate because the actual field was much higher than the meter was able to instantaneously record These data are termed saturated data which denotes that the measured field increased more quickly than the EMDEX could adjust for or that the field exceeded the maximum measurable value of the EMDEX In either case a flag is set in the data record to denote that t
144. fications to the chart e t comes with its own help system so you can get detailed help on all the tabs and fields in the dialog box e Many changes to this dialog box will update the chart immediately so you can see the effect of your modifications e There is no undo feature so you will need to manually reset the values if you make a mistake 245 Change the Colors of the Bands To change the color of the bands that represent the different levels of magnetic field intensity e Click the right mouse button on the 3D Map chart to display the 3D Chart Control Properties dialog box e Nextclick on the Levels tab This tab lets you define the contour levels that are used to draw the color bands on the 3D Map Notice that the eleven ContourLevels defined for this chart are 0 5 1 2 5 10 25 50 100 500 1000 and 3000 The number of levels is denoted by the number 11 in Levels field which is located above the Load button e The dialog box will look like the picture below 3D Chart Control Properties Ed Axes ChartGroup Styles Titles Legend Chart rea PlotCube View3D ChartStyles ContourLevels a General IsDefault Levels Load Save 0 tod Add Remove Cancel Apply Help e Now click on the Styles tab and then click the FillStyle sub tab to activate it This tab lets you modify each of the colors used to fill the bands on the chart e The
145. gether in the EMDEX Il s computer memory for that particular record Later when EMCALC 2000 needs to compute the actual field value the previous formula is used That is Field 102 0 0125 1 275 mG If the Add Half Bin Width checkbox is checked on the Units Calibration tab of the Options dialog box then the formula is slightly different It becomes Field A D Resolution Resolution 2 0 For the previous example this becomes Field 102 0 0125 0 00625 1 28125 mG Why use the Add Half Bin Width option 308 Some people believe that since the EMDEX meter actually takes a range of field values and converts it to a single number then a better representation of the data would be the value in the middle of the range rather than the value at the bottom of the range Adding a half bin width half the resolution to each data value will do just that It is up to you to decide how you want to compute your statistics Note by adding the half bin width there will never be a zero value for any data point in the dataset All zero values would be set to the value of the lowest scale s resolution divided by two For a standard EMDEX ll this would be 0 00625 milligauss When rounded to two decimal points of accuracy for display on the spreadsheets this value becomes 0 01 milligauss EMCALC 2000 vs EMCALC 95 EMCALC 2000 lets you choose whether or not to add the half bin width to each data point This data is then used cons
146. h the Amp Logger is 3 seconds e Press the EVENT button to select the displayed sample rate 387 Using the Linesplitter Accessory The Linesplitter is an optional accessory to the Amp Logger that divides the current from a regular electrical socket and allows you to measure each side of the circuit separately Since the probe measures the net current it encloses simply clamping it around a power cord for instance will result in a reading of zero amperes To measure the actual current draw of a device the Linesplitter is used to split the current in the cord so each side can be measured separately The Linespiltter can carry a maximum continuous current of 15 amperes 16 20 amperes can be carried for a period of one minute or less Do not exceed these limits e To use the Linesplitter to measure the current from an electrical outlet e Plug the line cord into the Linesplitter e Plug the Linesplitter into the desired outlet e Clamp the Amp Logger Current Probe around the opening labeled 1X for a direct reading of the current Use the 10X opening for more sensitive readings See the figure below 10x Opening 1x Opening e Begin measurements with the EMDEX Il and Amp Logger Note If the 10X opening is used to make measurements The Electric Calibration Constant in EMCALC 2000 must be set to 0 752 when analyzing the data instead of 0 0752 You will need to set the External Probe to Other and manually enter an Electric Calib
147. have changed to indicate only the data that is displayed The Previous Zoom and Reset Zoom LEX buttons are also activated on the toolbar You can keep zooming in on the data until there is a minimum of 3 data records displayed on the chart At that point defining a new zoom window will not change the chart Click on the Previous Zoom button to go back one zoom level Click on the Reset Zoom to reset the zoom level back to the entire data set Cursor Read Out You can use the mouse to get a reading of the data in the chart e Place the mouse cursor somewhere inside the plot area the area inside the box defined by the X and Y axes e Hold down the Shift key on your keyboard e Move the mouse back and forth horizontally across the chart e Asetofcross hairs will be displayed that track the data in the chart e Areadout of the data in the chart is displayed at the top of the chart and is updated as you move the cursor It may slightly cover the chart header but that is OK it was designed that way BEE ik e am Ta INNE Osa tear eleal erekere eaa 0 hs 3j Wak domeienn Emdex Files E Quick Tour 1 ecord 29 of 511 t Jul 01 1999 at 12 28 49PM 11 00 mG Cursor Walk Downtown lo Enertech s office in downtown Campbell Readout 30 20 i Cross Ha 60 z 50 e E i F i 3 3 3 LH is I 40 2 Es amp E 2 pa oo e L 5 23 Broadband Resultant Bot ji MEN z 2 RE H 1230 PM 1
148. his particular data point was saturated data In EMCALC the user has the option of whether or not to include saturated data with the other measurement data for purposes of statistical analysis 305 Appendix C 306 Half Binwidth Values Probably a better name for the Add Half Bin Width would be Add Half the Resolution of the Scale in which the data was collected However that is too long so the existing name will have to suffice Background The EMDEX meters are auto ranging devices This means that they automatically change their internal gain settings depending on the ambient field source being measured The EMDEX II has three gain settings or scales and the EMDEX LITE has two scales When making measurements the EMDEX meter must convert an analog signal the magnetic field into a digital value that can then be stored in it s internal memory This digital value is what is used for statistics and charts in the EMCALC 2000 software In converting the analog signal to a digital value the EMDEX meter uses an Analog to Digital A D converter that is embedded in its internal computer The A D converter takes a range of analog signals and converts them to a single digital number This digital number is referred to as a bin and its resolution is referred to as the bin width There are a limited number of bins available on each scale For an EMDEX II there are 1024 bins per scale and an EMDEX LITE has 2048 bins per
149. ial Cable vicios bee ie ide de dtu 64 Contacting Technical Support essssssssssssesssseeeneereerenen enne enn rn nnn n nn neneerernnns 21 Converting ithe Dalar 2 nr d edet ee reihen 298 Gonverting to LINDA a honc teet IR Code e nennen 294 Copy a Chau nie Hehe ned 284 Copying a Databook sis one p att eade IR edo a 150 Copying a Dataset into an Existing Databook sssssseee emen 157 Copying a Dataset into an New Databook sss nene nennen 158 Copying Data Pages 3 a eie fed tte erede eed ce tete dte o edi 177 Gorrectthe Angle 2 22 pin A toi a 126 Create a 3 D Map 5 aeg oer De Ere A dia 55 Create a Contour Map trn eU eden e reu des a Me E Dada 57 Create a Drawpath Data Page ssssssssssseeee eene nennen nennen nnne nnne 120 Create a Subset Dataset 2 na e ene 163 Greate ASCII Data Ru t cited baee ilu e e etd 82 Create the Group Dataset iinis ieren ei ie a en ener rrr n nnne nn neret nens 89 Greating a Group Bataset edet eue Pod ee e eed eds 160 Creating a New Databook ssssssssesssseeeee nennen een e a a a ai nnns 145 Cursor Read Out s ei il ecu b teo DU aided d coa Re a eR d 46 Cursor Readout of Datei rit 2 2 cm fed i e Red e ete edle deep 277 Customizing the 3D Map tre ee eed E te In 250 Customizing the Contour Map sss ennemi nennen enne nnne 257 Customizing the Field vs Distance chart emere 267 Customizing the Field vs Tim
150. ialog box and ASCII data page in EMCALC 2000 The table below lists the varieties of unit types Meter Type EMDEX I EMDEX II EMDEX II EMDEX II EMDEX II High Field EMDEX II High Field EMDEX II EMDEX LITE EMDEX LITE High Field EMDEX LITE High Field EMDEX LITE Operating Program N A NORMAL 1 x NORMAL 2 x 3 x LINDA 1 x LINDA 2 x 3 x NORMAL 2 x 3 x LINDA 2 x 3 x Resultant Only XYZ or No Display Resultant Only XYZ or No Display Unit Type as Shown on Screen EMDEX 2 EMDX2 1 EMDX2 0 LINDA 1 LINDA 0 EMDX2 7HF LINDA 7 HF LITE 20 LITE 21 LITE 22 HF LITE 23 HF Unit Type as Shown in ASCII Output Old Style EMDEX 2 EMDEX II 1 EMDEX II 0 LINDA 1 LINDA 0 High Field EMDEX II 7 High Field LINDA 7 LITE 20 LITE 21 High Field LITE 22 High Field LITE 23 133 The Application The EMCALC 2000 application contains three main windows the Workspace Window on the left the Databook Window on the right and the Real Time Monitor Window at the bottom The Workspace window contains a tree control that shows the files that are currently open in the application This window allows you to open create and modify databooks and the datasets within them The Databook window contains documents and tabbed views displaying charts and statistical analyses which correspond to the databooks and datasets in the workspace window The real time monitor window is used only during
151. ible components show hide the Harmonic filter data for all the visible components show hide the Fundamental filter data for all the visible components E show hide the event marks go to the previous zoom level reset the zoom level to the entire chart 266 267 Customizing the Field vs Time chart The Field vs Time chart is created using a 2D Chart Control that is very flexible This control lets you customize many aspects of the chart such as the color of the lines that represent each series the size of the fonts the axis labels the legend style etc To customize the Field vs Time chart e Right click on the Field vs Time chart chart itself e This will display the 2D Chart Control Properties dialog box shown below 2D Chart Control Properties Ed E ChartStyles Titles Legend Chart rea Plot rea ChartLabels pre General Annotation Scale Title ar gt 5 M IsShowing IsLogarithmic IsReversed Asi rercent Cancel Apply Help e This dialog will allow you to make the several common modifications to the chart e t comes with its own help system so you can get detailed help on all the tabs and fields in the dialog box e Many changes to this dialog box will update the chart immediately so you can see the effect of your modifications e There is no undo feature so you will need to manually reset the values if you make a mistake 268 Zooming the Field vs Time chart You can z
152. ic Field Broadband x axis Magnetic Xb Field Harmonic x axis Magnetic Xh Field Broadband y axis Magnetic Yb Field Harmonic y axis Magnetic Yh Field Broadband z axis Magnetic Zb Field Harmonic z axis Magnetic Zh Field Broadband Electric Field Eb Harmonic Electric Field Eh 329 330 Marking Events During Data Collection e You may place special markers in the data during a measurement by pressing the EVENT button e During data collection press the EVENT button on the EMDEX II e The LCD quickly displays an event number e g evnt 1 to confirm that a marker has been registered in the data set e Itis a good idea to write the event number and a description of the event in a log book for later reference 331 Stopping Data Collection The EMDEX II automatically stops collecting data and goes into STANDBY mode if e The battery voltage reaches a minimum value e The EMDEX Il memory is full e Twenty data sets have been collected To manually halt data collection e Hold down both the lt gt and lt gt buttons e While the lt gt and lt gt buttons are still held down press the EVENT button e The EMDEX II displays stop n where n is the n data collection made since the meter was last turned on Up to 20 data sets can be recorded before the data must be transferred The meter then goes into STANDBY mode e n STANDBY mode you can transfer the data to the computer or store the device for a short
153. ich point in the direction of travel The path dimensions are displayed on the corners of the outlying square along with the distance units in the lower left corner The Drawpath toolbar contains certain buttons that are active highlighted inactive normal and disabled grayed The only buttons that are active are the Event Marker button and the Record Marker button js The Modify Path and Pa MM 2 m Traverse All Records buttons are inactive The Undo button is disabled since there is nothing to undo at this point Locate the Record to be Modified The path that was actually walked with the LINDA wheel was a back and forth pattern starting in the lower left of the screen traveling to the right and should have ended in the upper right corner However turn number 10 was either entered incorrectly or did not get entered at all You must now enter the missing turn It is located around record number 75 we know this because we wrote the quick tour In reality you would need to approximate where you think the missing turn should be modified or added If you entered an event mark each time you made a turn then it would be an easy task to find the missing turn because it would show up as a black circle located somewhere in the middle of a line segment rather than being located at an angle To locate the record to be modified e Select the Modify Path button it the toolbar This puts you in Edit Mode e You will notice a red c
154. icture below 108 3D Chart Control Properties x Chart rea PlotCube View3D Levels ChartStyles Axes ChartGroup Styles Tiles Legend ContourStyles 4 General I LineStyle Color Style2 Style3 RGB 0000s0 m Style4 Style5 x Name NavyBlue Add Remove Count 12 Cancel Apply Help The number of ContourStyles should always be one more that the number of ContourLevels Notice that the number of styles in the tree is twelve This is also denoted by the Count 12 text located below the Remove button Remember that the number of ContourLevels was eleven There is a tight correlation between the ContourStyles listed in the Styles tab and the ContourLevels listed in the tree control on the Levels tab Style1 is used to denote field levels up to Level1 Style2 denotes fields between Level1 and Level2 Style3 denotes fields between Level2 and Level3 and so on Style12 is used to denote the fields that are greater than the highest level Level11 defined on the Levels tab This chart does not contain any fields less than 0 5 milligauss Level1 so there is no band that is colored using the NavyBlue color defined for Style1 The fields go from 0 7 mG up to 48 2 mG according to the Descriptive Statistics page Therefore only Styles 2 3 4 5 6 and 7 will used to color the bands on the chart The corresponding colors for these levels are Blue LightB
155. iei tti ebat eda qe ebat taret 148 Exporting a Databook to an ASCII File ee 149 Databook Propertles 1 2 iicet tad o tirita 150 Datasets 151 Data ii ouai tun aoi ehm te eiat 152 Activating a Dataset Sheet eene eene 153 R namirng a Dataset ipeo Te beaten TAAS 154 Copying a Dataset into an Existing Databook 155 Copying a Dataset into an New Databook ssssseee 156 Del tingva DataSet pete penderet 157 Creating a Group Dataset sssssssseee emen 158 Delete a Group DataSet sissi ai ar a E a a E Aea EE T 160 Create a Subset Dataset 44us4snneeennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnn TRR 161 Dataset Properties denne xe net HERE ken 163 Data Pages 166 Data Pages eo ed e ant nb or bot ection eb des 167 Adding Data Pages m e tb e b iie ari ea 169 Removing Data Pages ime etri t rbd abe Rue ende 170 Printing Data Pages ian ceo ideen 171 Copying Data Pages ont nennen 173 Page Setup ale t liar db 174 Communications 176 EMDEX Il Communications Checklist eene 177 Downloading Data from an EMDEX ll 178 The Raw MDX file hene teo EG be ci e era 180 Uploading a Program to an EMDEX ll seme 181 Change EMDEX II Parameters ssssee emm 184 EMDEX LITE Communications Checklist eeeeeee 186 Downloading Data from an EMDEX LITE sssssseen m 187 The Raw ETE file 2 tr
156. ield The type of terrain where field readings are conducted can influence the accuracy of the distance measurements The normal accuracy of the measurement wheel is about 1 296 for flat paved surfaces Rough and or irregular terrain can result in distance errors of 6 8 or more depending up the severity of the terrain and the rate of speed of the measurement wheel Slower speeds will help to minimize these effects If accurate distance measurements are important the path should be pre measured using a tape measure and compared with the reading on the mechanical odometer If a discrepancy is found then a uniform calibration factor K can be calculated where is the mechanical odometer reading and D is the actual measured distance The value of amp is then used as the Wheel Calibration Constant described in the Units Calibration tab of the Program Options Be sure the distance unit of the Wheel Calibration Constant in feet or meters and the tape measure are the same This action will correct the distances shown on a Field vs Distance graph 379 Appendix G 380 Using the Amp Logger The Amp Logger is a small accessory designed to be an interface between an EMDEX II meter and a Fluke 80i 600 AC Current Probe The Amp Logger allows the EMDEX II to record magnetic field and electric current data simultaneously The probe clamps around a current conductor and is then plugged into the Amp Logger The Amp Logger has a sub m
157. iew the DrawPath page e Click on the DrawPath tab at the bottom of the databook window to activate the DrawPath page e Your screen should look like the picture below EMCALC 2000 Port Sowce l Kb pe Es yew Common Lock windo bin algixi Dau vario Mn mem mm e El dataset O EI IA NANA ETNIA Nos Yess e You can see that the dimension of the mapped area was approximately 12 by 18 feet e The origin 0 0 of the DrawPath is located where the path starts Drawpath employs a typical cartesian coordinate system Positive and negative X coordinates emanate from the origin to the right and left of the screen respectively Positive and negative Y coordinates emanate from the origin to the top and bottom of the screen respectively e In this dataset the origin is located in the lower right hand corner of the room The user walked in a back and forth pattern that fairly well covered the entire room e The Toggle Record Markers button is used to show and hide the little arrows that indicate where a magnetic field measurement was taken Turn off the record 52 markers by clicking on this button 53 Create a 3 D Map Unless you specify otherwise a 3D Map is not created when you open a record type 7 LINDA dataset You can change this default action in the General tab on the Options dialog box To create a 3D Map e Right click on the dataset icon named Point Source in the Workspa
158. ill induce a current on the upper sensor plate A current will also be induced on the lower plate but will be a smaller current due to the shielding of the upper plate Since the size and distance between the two plates is known the electric field can be calculated by measuring the induced currents on the upper and lower plates The EMDEX II meter will read and convert the induced current into an equivalent electric field measurement value The upper sensor plate and lower sensor plate must be isolated from each other by the non conductive nylon posts in order to accurately measure and calculate the equivalent electric field If any contact or conductive path is made between the two plates then their induced currents will become equal i e the two plates are shorted together and the electric field reading will be zero 397 Magnetic Field Measurments Because of the thickness of the aluminum plates the E Probe will partially perturb the magnetic field within the area between the two plates at the location of the EMDEX II meter Since the magnetic field sensor coils are built into the EMDEX II meter the magnetic field levels recorded by the EMDEX II meter while situated within the E Probe will be slightly low Using the E Probe at 50 Hertz the EMDEX II will record the magnetic field as about 2 to 6 lower than the actual field value single axis worst case value This error will increase with frequency at 800 Hertz this single axis error
159. in error in excess of the EMDEX Il s operating specifications due to the accuracy limits of the broadband and harmonic bandwidth The Fundamental Calculation Check data page provides an estimate of the number of measurements which may be in error by more than a user specified amount Maximum Allowable Error A full discussion of the error associated with the fundamental calculation is found in Appendix A File E My Protect EMCAL CDM rond Type 6 Sample Data mik Deecnpton Sample fie of recerd type 6 Maximum Allowable Error shows the current error criterion used in the test You may set this to any value between O absolute accuracy required and 100 any accuracy is allowable Under most circumstances 20 is an acceptable value see the Units Calibration Tab topic in the Global Options section of this document Number Exceeded Error Limit and Percent Exceeded Error Limit shows the number of observations whose error may exceed the allowed limit It is important to realize that this screen is not stating that these measurements are in error The screen is stating that it is possible that the difference between the true value 225 of the fundamental and EMCALC 2000 s calculated value is beyond the acceptable specified error Note to EMCALC 95 users EMCALC 95 does not add a half bin width to individual data measurements when calculating the fundamental calculation check statistics Therefore to compare EMCALC 95 fundamental calculation
160. in the description field of the Event data page You can type directly into the field e Press the lt Tab gt key when done e The new description will be added to the event 214 Statistics 215 Statistics The Statistics are considered as a set and include the following data pages Descriptive Order Geometric Exposure Time and Calculation Check Though you can view print and copy these pages individually they are added and removed as a set 216 Descriptive Statistics Data Page Descriptive statistics data page includes maximum minimum mean standard deviation and median values of the dataset The first column below the data page header displays the type of measurement in the dataset e g Broadband Resultant The minimum is the smallest value occurring in the set of measurements The maximum is the largest value occurring in the set of measurements The mean is the average value of a set of measurements The mean Xon is defined by 1 N ne 217 where Xi are the individual measurements and N is the number of measurements The standard deviation 5 of a set of measurements is defined as LE NOD XS Y 5 i 0 where Xavg is the mean of the measurements Xi are the individual measurements and N is the number of measurements The median of a set of measurements is the measurement value above which half of the measurements lie 218 Order Statistics Data Page Order statistics data
161. iniature phone plug which connects to the EMDEX II through the AUX jack The current in the conductor induces a current in the probe that is adjusted by the Amp Logger before going to the EMDEX II EMCALC 2000 translates the AUX jack current back to the magnitude of the conductor current This allows the EMDEX II to be used as a recording clamp on ammeter Warning The Amp Logger with its Fluke camp on probe is designed to work only on LOW voltage alternating current circuits that do not exceed either 750 volts or 200 Amps For example currents could be measured on the following types of circuits secondary circuits utility service drops low voltage industrial or commercial building wiring house wiring neutrals water pipes or ground rods The Amp Logger has a maximum current rating of 200 Amps and care must be taken to connect leads in the proper sequence as described in the topic titled Connecting the Amp Logger to the EMDEX Il described later in this section EMDEX II Amp Logger N Fluke Current Probe 381 Before you Begin Special Operating Considerations There are a few important considerations you need to take into account before using the Amp Logger with the EMDEX II meter 382 The Fluke 80i 600 AC Current Probe used with the Amp Logger EMDEX II is rated from 1A to 600A at a maximum voltage of 750 VAC rms The Amp Logger is rated to 200 A Do not use this device beyond its rated 200 Amp or 750 VAC rating Se
162. int or copy in whole or part the licensed programs or documentation is granted except for back up purposes or for archive purposes The licensee agrees not to provide or otherwise make available any licensed program or documentation to any person other than licensee 10 Acknowledgements The development of the EMDEX Electric and Magnetic Field Digital Exposure System was made possible through the contributions of many people The EMDEX EMCALC design teams consisted of Software Hardware Documentation John R Pappa J C Niple Designer John R Pappa Manager Jennifer Patton Jennifer Patton Lead Programmer Vladimir Serdyukov Vladimir Serdyukov Peter Seo 11 New Features in EMCALC 2000 Since the new EMCALC 2000 is a Windows application the interface is completely different The new interface alone enables for many enhanced features These features are listed below e Works on Windows 95 98 and NT 4 0 operating systems e Atree control allows a user to see which files databooks are open and lists the datasets contained in the files e The new tree control allows for powerful databook dataset editing capabilities such as copying deleting and renaming e Datasets can be copied by simply dragging them from one databook into another e Anew spreadsheet style interface makes presentation of the results much more intuitive e Send output to any printer supported by the Windows operating system e Presentation quality
163. ion on the main menu Note if you accidentally mess up the default 3D chart there is a copy of the original default chart in the Data subdirectory and it is named Copy of Default3Dchart OC3 You can Load this file then Save it to your installation directory as Default3Dchart OC3 Answer Yes to the question about overwriting the file 287 Convert To LINDA 288 Converting to a LINDA File This feature allows users to simulate Field versus Distance measurements without using a LINDA measurement wheel This function is particularly useful when a user wants to map magnetic fields around a large area or room but due to obstacles or other obstructions using a LINDA wheel would be especially difficult or impossible You can even use this feature to map a vertical wall or ceiling 289 Collecting the Data The data Though any EMDEX II time series dataset record types 1 through 6 can be converted to a LINDA dataset record type 7 it is best to set the meter up to collect X Y Z and Resultant data record type 5 at a 1 5 second sample rate LINDA data consists of X Y Z and Resultant record type 7 magnetic field data only Converting a record type 1 dataset Resultant only will result in the X Y and Z values of the converted file being set to zero since they don t exist in the source file Converting a record type 3 Resultant and E field will result in the E field data being ignored Converting any file that contai
164. ircle drawn at the starting position of the path marking your current location e Move this circle by selecting the up arrow move forward on your keyboard By default the circle will skip to the next vertex or change in angle in the path e Notice the information about your current position displayed in the lower left corner of the status bar This information is updated automatically while you traverse the path and displays the current record number total distance from the start location to the current position along the path current record s angle and the X and Y coordinate information for the current position After pressing the up arrow once the status bar should display Record 11 Distance 39 0 Angle 90 0 X 0 0 Y 39 0 e Continue pressing the up arrow until you reach record number 64 Pal n e Now activate the Traverse All Records button in the toolbar by pressing it with the mouse This will allow you to start moving through every data point in the path not just the turns e Continue pressing the up arrow until you reach record number 75 e Your current position according to the status bar should now be Record 75 Distance 239 0 Angle 0 0 X 38 0 Y 39 0 e The screen should look like the picture below 121 122 Modify the Angle You need to enter an angle change at record number 75 so as to correct the path To Modify the Angle e Double click anywhere on the Drawpath or press lt Alt A gt on yo
165. is displayed select it by pressing the EVENT button The LCD displays RATE indicating that you have completed the selection 321 322 Setting the Frequency Response The EMDEX II has two software selectable frequency bandwidths The broadband response measures all signals from 40 Hz up to 800 Hz The harmonic band measures all signals from 100 Hz up to 800 Hz Collected data can be either broadband only or broadband and harmonic This selection is made using the BANDWDTH measurement option In order to collect broadband and harmonic magnetic field data the sample rate must be at least 3 seconds to allow time for both measurements as shown in the table above The primary frequency of the field called the fundamental frequency is not directly measured by the EMDEX II but calculated using the broadband and harmonic quantities To select the Frequency Response e Select the BANDWDTH measurement option e The EMDEX II displays the current selection broadbnd broadband only or bb amp har broadband and harmonic If the displayed option is OK pressing the EVENT button exits the option without changing it e Continue pressing the lt gt or lt gt buttons to toggle between broadbnd and bb amp har e Setthe Frequency Response to the value on the LCD by pressing the EVENT button BANDWDTH appears on the LCD indicating that you have completed the selection Note If you desire an analysis of the fundamental frequency you must sel
166. is first turned on the measurement rate RATE option is set at 1 5 seconds per sample The fastest allowed time depends on the frequency response BANDWDTH option For instance measuring broadband and harmonic magnetic field data requires a minimum 3 second sample rate Measuring broadband and harmonic magnetic fields and the electric field requires a minimum 5 second sample rate If the RATE is not adequate for the BANDWDTH the EMDEX II displays RATE ERR on the LCD as soon as you begin the measurement If this happens increase the RATE or adjust the BANDWDTH or STORAGE option to some other value See the table below for minimum sample rates for certain storage types BANDWDTH STORAGE STORAGE bb amp broadbnd har Setting broadband broadband and harmonic resultnt 1 5 sec 3 sec resultant rsit 8 E 3 sec 5 sec resultant and E rsit xyz 1 5 sec 3 sec resultant and x y and z Change the sample RATE using the following procedure e Select the RATE menu item e The EMDEX II Display shows the current sample rate If the displayed rate is OK pressing the EVENT button exits the option without changing the sample rate e Toggle to another sample rate using the lt gt and lt gt buttons until you get to the desired rate You can choose a sample rate of 7 5 3 5 10 15 30 60 120 or 300 seconds You can set the measurement rate to any value between 1 5 and 327 seconds using EMCALC 2000 e Once the desired rate
167. istently throughout the program for every data page Events all Statistics ASCII and all Charts EMCALC 95 on the other hand did not give you the option to add the half bin width EMCALC 95 always added the half bin width when computing all statistics except the Fundamental Calculation check EMCALC 95 did not add the half bin width when displaying charts or when dumping the data to an ASCII file 309 Appendix D 310 Using the EMDEX II Meter The EMDEX Il shown in the Figure below is a programmable data acquisition meter designed primarily to measure magnetic field intensity It consists of an 8 bit computer with an ultraviolet erasable programmable read only memory EPROM operating program 156k bytes of CMOS RAM for data storage a signal processing board and magnetic field sensors Toggle Buttons Communication Event Port M x REMOTE LINDA Wheel Jack AUX E Field Sensor Jack There are two versions of the EMDEX II meter available The Standard EMDEX II measures fields from 0 1 mG to 3 0 Gauss The High Field EMDEX II measures fields from 4 mG to 120 Gauss The two units can be identified by the color of the EMDEX II lettering on the case the Standard EMDEX II has white lettering while the High Field EMDEX II has yellow lettering 311 Basic Operation of the EMDEX Il The EMDEX II features an easy to use push button interface allowing you to program its measurement options mark events directly in the data a
168. itles and GridLine attributes Page Order allows you to specify whether to print the rows and then the columns or the columns and then the rows For example if a grid sheet were going to take four pages to print and the second and forth pages only contained two columns which did not fit on the first and third page you could set the first columns then rows options This would print the first and third pages followed by the second and forth page Center on Page allows you to center the grid view horizontally and or vertically on the page Save setting to profile check this box to save the setting on this dialog box so that next time you run EMCALC 2000 the same values will be used 175 Communications 176 EMDEX Il Communications Checklist Before attempting any communications with your EMDEX II meter you should go over the following checklist and make sure everything has been set up properly To setup the communications for your EMDEX Il e Make sure that you have the correct cable attached to the serial port of your computer and that it is securely plugged into the EMDEX II meter from which you will be downloading or uploading This procedure is described in the topic titled Connect the Serial Cable in Quick Tour 2 of this document e The selected serial port must be available and must not currently be used by any other application EMCALC 2000 will display the following error message if it was not able to access the serial p
169. its Max Broad E displays the maximum broadband E field Max Harm E displays the maximum harmonic E field Parent File is the name of the original EMCALC data file when the data was transferred from the EMDEX II or LITE This field provides an audit trail to the original data file if this file is the result of EMCALC file functions which create sibling data files from the parent file Description displays the dataset label Record Type is the record type contained in this dataset Unit Type is the type of unit that was used to collect the data Number of Clicks indicates the number of measurement wheel sensor signals each signal represents a unit of distance traveled by the wheel Direction Mode can be Relative to indicate that the LINDA was in relative direction mode Rt Lt mode or Compass mode See the LINDA User Manual for more information Concatenated File indicates if this is a concatenated file EMCALC 2000 currently cannot create concatenated files Aggregated File indicates if this is an aggregate file EMCALC 2000 currently cannot create aggregate files Breakout File indicates if this is a breakout file EMCALC 2000 currently cannot create breakout files 231 Converted EMDEX 1 x File indicates whether the dataset was converted from an EMDEX 1 x version file EMCALC 2000 does not convert EMDEX 1 x files Converted EMDEX File indicates whether the dataset was converted from an old EMDEX 100 or EMDEX C ve
170. ium cell Interacting with the EMDEX Il The EMDEX II has three control buttons a large Event Mark Button labeled EVENT and the two smaller Toggle Buttons labeled and From now on we will refer to these toggle buttons as lt gt and lt gt These three push buttons allow you to select measurement options through a system of menus similar to menus found in many computer programs There are 10 menu items used to select various EMDEX ll options as shown in the table below Menu Optio STAN DBY RUN RATE OP MOD BAND WDT STOR AGE Description Standby mode The meter is waiting for your instructions or waiting for data from a PC Begins measurements Specifies the Sample Rate sets the rate at which the meter takes measurements Options 1 5 3 5 10 15 30 60 120 or 300 seconds Specifies the operational mode determines whether measurements are stored or simply displayed on the LCD Options normal Data collection mode survey Survey mode data not stored Specifies the frequency response bandwidth of the meter Options broadbnd Broadband 40 800 Hz bb amp har Broadband and Harmonic 100 800 Hz Specifies the kind of data stored in the meter Options resultnt Magnetic field resultant rsit 8 E Magnetic and electric field resultant rsit xyz Magnetic field resultant x y and z components 315 316 DISP LAY STAT Specifies the information displayed on the LCD during
171. l Values for the fundamental are calculated from the measured broadband and harmonic values in EMCALC 2000 Errors in the calculated fundamental can result from small errors in the measured broadband and harmonic values In most typical power frequency EMF environments the dominant component of the magnetic field is the 50 60 Hz fundamental In these cases the calculated values of the fundamental are accurate However occasionally one may encounter an environment where harmonic components dominate such as an airplane at 400 Hz In this special case EMCALC may report a calculated fundamental value that is substantially in error There is nothing wrong with the EMDEX II but in special cases small filter and tolerance errors can affect the calculated fundamental values Although the circumstances in which this problem occurs are unusual it is important to fully understand the potential calculation error so that data can be interpreted in a meaningful way Note that this discussion applies only to the calculated fundamental and that the results reported for the broadband and harmonic resultant are not affected The calculated fundamental Fc is given by the expression where P and Hnare the measured RMS values of the broadband and harmonic components As an illustration of how errors may arise consider a particular case where an EMDEX II is in a pure 300 Hz magnetic field of 100 mG Suppose that the measured broadband value is 100
172. l A NN 203 Geometric Statistics Data Page ooooocccccccccccccococoncconcnncnnnnonnnncnnnnnnnnnnno nn ncn nennen nennen nnne nene 226 Getting Started sei oe e E d bue du a eed arbe tue aei oda 21 Global Option Sente e e te tende be eet Lee mec ai 201 H Half Binwidtli Values eerte ert eed ecrit deer e ttu ee e TE TE S 312 Hardware Versions of the EMDEX LITE oooccccncncccconocononnnononononoconcnnonononnconnononnnonnnonnrnnnnnnnanonons 355 How to Use the Compass nee eet eiat dit 379 instalation NSU CIONS nta nahen a c e e fang tn 25 Installation Requiremierits deter tte RR ana 24 Interacting with the EMDEX ll eene emen nnnm ennemis nnne nnne 320 Introducir eee d oid det te sa felis eram teint uestri ci 33 Introduction to Quick TOUF A e e c tod a a te a Bea eda ne nk ad 62 Iritroduction to Quick Tour 9 ii a e nr RE RR ERE RA 85 Introduction to QUICK TOUR e 1 e dada a a 95 Introduction to QUICK TOUP D caridad ER a Rd ea d Ta us 107 Iritroduction to QUICK Tour 6 near 118 K Key Features of EMCALC 2000 ssssssssseseseeeeene nennen enne ener nennen nennen nnns 14 423 L Legal NOUCE 2 5 2 nie nl 10 LINDA Measurement Wheel 0444444444400n0nnnnnnnennnnnnannnnnnnennnnnnnnnnnnnnnennnnnsnannnnnnn nn 18 Locate the Record to be Modified 4444s444neeennnnnnnnnnnnnnnnnnnnnnnennnnnnnennnnnnnnnnnn nes nnnn nenn 122 M Magnetic Field MeasurMents tico I E en teen 403 M
173. ld Harmonic x axis magnetic field Broadband y axis magnetic field Harmonic y axis magnetic field Broadband z axis magnetic field Harmonic z axis magnetic field Broadband electric field Harmonic electric field To select the EMDEX II for use as a survey meter e Select the OP MODE measurement option e The LCD displays the current Data Collection Mode normal or survey e Press the lt gt or lt gt buttons until survey is displayed on the screen e Press the EVENT button OP MODE appears on the LCD indicating that you have completed the selection e Select the RUN option e The LCD displays start This is followed by error messages if any If no error messages are displayed measurements begin after a few seconds Note Under certain circumstances the harmonic bandwidth readings in survey mode can be significantly different from the actual field value However readings taken with a calibrated meter in the normal data collection mode may be taken with confidence This possible discrepancy occurs only in survey mode 334 To change the survey quantity displayed on the LCD e Press the lt gt or lt gt button to toggle through the quantities in Table 2 6 The LCD displays the symbol of the quantity and its value For example Zh 5 6 displays the z axis harmonic magnetic field strength as 5 6 milliGauss e Press the lt gt lt gt and EVENT buttons simultaneously to stop the display and return to STANDBY
174. ll save this file under a different name To save the file with a new name e Choose File Save As from the main menu The standard Windows Save As dialog box will be displayed e Enter the text Quick Tour 6 Drawpath Corrected in the File name field e Click on the Save button e A status message will be displayed in the status bar at the bottom of the application window The word Ready will be displayed when the file has been saved to disk e You will notice that the name of the databook has changed to Quick Tour 6 Drawpath Corrected in the application title bar and on the tree control e Close the databook by first activating the databook window and then choosing File Close from the main menu Exit EMCALC 2000 e Choose File Exit from the main menu This concludes Quick Tour 6 126 EMCALC 2000 Basics 127 The Basics This section of the user manual explains the basic concepts required to operate the EMCALC 2000 software This section assumes that you have a basic understanding of computers and the Windows operating system 128 Terminology Throughout the user manual there will be some terms that are used which you may or may not be familiar Some of the more common terms that are repeated throughout the manual are listed below Broadband The EMDEX II can measure the magnetic field occurring at frequencies between 40 800 Hz and 100 800 Hz The 40 800 Hz range is called the broadband The
175. ll remained We strongly recommend that the battery be changed if the unit indicates a battery level of 4096 or less If the measurement is especially important a new battery should be installed If there are any errors found during the internal checks a message appears on the LCD see Table below These errors must be corrected before data collection can begin After the diagnostic check the EMDEX II display will read STANDBY This indicates that the meter has completed its initial tests and is ready for further instructions 313 EMDEX II LCD Error and Warning Messages LCD Messag e BAD PROG DIAG ERR MEM FULL MAX DS RATE ERR LOW BAT 314 Description Incorrect Operating Program Either a High Field program is loaded on a Standard EMDEX II or Standard program is loaded on a High Field EMDEX II Diagnostic check error The unit must be returned for repair See Appendix E for service information The internal memory of the meter is full Transfer your measurements to the PC see page Error Bookmark not defined The maximum number of data sets 20 has been reached Transfer your measurements to the PC see page Error Bookmark not defined The Sample Rate set in the RATE option is lower than the minimum allowed for the current measurement options See Table 2 4 page Error Bookmark not defined Low battery voltage Replace the 9 Volt battery with a fresh alkaline mercury or lith
176. lower field data In situations like this it is often helpful to use a logarithmic scale on the Y axis e To change the scaling on the Y axis right click on the chart This displays the 3D Chart Control Properties dialog box e Click on the Axes tab e Select the Y axis on the Axes tree control e Next on the General sub tab check the box titled IsLogarithmic This will cause the Y axis in the chart to change immediately to logarithmic scale e Your screen should look like the picture below after checking the IsLogarithmic box Gas Dam WiIAWAN QI440 AM 101420 AM 10 500 AM IQISIQCAM 101520 AM 101530 AM ING ma E 101425 AM 1035 32 AM E My Propecia EN CALCD aah Tour 3 nth ALS ber A Grier A Greeti Espa as Ton Fa v Tene 90 Notice that you can now make out what the field levels are for Dataset 1 and Dataset 3 Click on the OK button Try clickin Resultant field g on the X Component iex Y Component ur Z Component E and R buttons respectively to see the different components of the magnetic 91 Close and Exit Since the databook was modified when you added the group dataset the program will ask you if you want to save the file before closing it To preserve the original file you will save this file under a different name To save the file with a new name Choose File Save As from the main menu The standard Windows Save As dialog box will be displayed
177. lue Cyan 008000 a dark green Green and Yellow Lets change the Yellow band There are three fields on this tab that let you change the color of a Style The RGB field define the amount of Red Green and Blue color to mix in order to come up with a new color only geeky programmers know what this hexadecimal number means so it is not recommended that you use this field The Name field can be used to select from about a hundred different predefined colors however you cannot see the color until after you have selected it The preferred method of choosing a color is to click on the color button to the right of the RGB field This displays the standard Windows Color dialog box that lets you see the colors that you choose Click on the yellow color button to display the Color dialog box The currently selected color is highlighted in the pallet box and is displayed in the Color Solid field It looks like the picture below 109 Color Basic colors Click Here 7 to Select Red m EEEH E ES EN ES ON NND E A EE EEE BT Custom colors BEE Bea ee BEE BE ff Define Custom Lolos gt gt Cancel Currently Selected Color Hue 40 Red 255 Sat 240 Green 255 olorlSolid Lum EJ Blue Add to Custom Colors e To select a new color click on the colored square that contains the color you want For this example click on the red square that is in the second row first column then click on
178. mG i e no error and the measured harmonic value is 99 mG i e 1 error The fundamental 50 60 Hz value that would be calculated by EMCALC in this case would be 100mG Y 99mG 214 1 mG 296 That is a 1 mG 1 error in the harmonic measurement could result in a 14 mG error in the calculated 50 60 Hz fundamental value reported by EMCALC Now consider the other extreme where the field has a pure fundamental frequency of 50 60 Hz Again assume that the measured broadband value is 100 mG no error but assume that the measured harmonic value is 1 mG rather than the true value of 0 mG Then the calculated value for the fundamental is 100 005 mG which is in error by only 0 005 mG No big deal These examples illustrate the fact that the fundamental calculation error under consideration here is only of concern when the broadband and harmonic signals have similar magnitudes i e a high harmonic content with little or no fundamental The error in the calculated fundamental value can be determined as follows Let the true fundamental harmonic and broadband RMS amplitudes be designated F H and B respectively F H and B are related by the equation B NF H 2 Assume the broadband signal is measured without error i e B Ey but that the harmonic value is in error by the amount SO that i z 1 H 3 Combining equations 1 2 and 3 and simplifying yields F 4F 26 8 H 4 Solving
179. maining Version number of the EMDEX II Operating Program If this number is lower than 2 1 the description of the meter in this manual may not match the meter s characteristics The amount of memory installed in the unit The units of the displayed magnetic field To display the status of any of these quantities Select the STATUS measurement option Press the lt gt or lt gt buttons to display the various status values Press the EVENT button to exit the option 319 Setting Measurement Options This section describes the available measurement options on the EMDEX Il The following topics are covered The Default Options on the EMDEX II Setting the sample rate Selecting the frequency bandwidth measured Specifying the kind of data stored Collecting Electric Field Data The EMDEX Il s Start Up Default Measurement Options When the EMDEX ll is first powered on it is in STANDBY mode and the measurement options are set to the values shown in the table below Sample Rate 1 5 1 5 seconds between measurements Operational normal Display and store measurements in memory Mode Bandwidth broadbnd Measure broadband frequencies 40 Hz to 800 Hz Storage resultnt Store the magnetic field resultant Display resultnt Display the magnetic field resultant on the LCD You may modify any of these parameters using the procedures described in the sections below 320 Setting the Sample Rate When the meter
180. me you wish to make the copy from in the workspace window tree e Choose Copy from the context menu e Again from the workspace tree right click on the databook name that you would like to paste the dataset into e Choose Paste from the context menu e Select the dataset in the workspace window tree and drag and drop it in the desired databook in the tree e You ll see a new dataset displayed in the databook It will have the same name as the dataset from which you made the copy You are now free to start modifying the new dataset NOTE You may select multiple datasets in the workspace window at one time to copy and paste into a databook but you may only drag and drop one dataset at a time 155 Copying a Dataset into an New Databook To create a copy of a dataset e Select the dataset in the workspace window tree e Drag and drop the dataset into the open area to the left of the dataset icon in the workspace window e The program will automatically create a new Untitled Databook containing a copy of the dataset and attach it to the bottom of the workspace tree The easiest way to drag a dataset into an open area is to select the dataset and drag it to the open area directly to the left of the dataset icon in the workspace tree Dragging the dataset straight down through the tree control will select all databooks and dataset lying below the selected dataset in the tree Thus dragging the dataset to the open area at the
181. measurements are stored or simply displayed on the LCD Options Normal Data collection mode Survey Survey mode data not stored Specifies the information displayed on the LCD during measurements Options R broad Magnetic broadband resultant Dist Az Distance and azimuth angle of travel Specifies the way in which changes in direction are to be indicated on the EMDEX Il Rt Lt Record direction changes relative to the current direction of travel Compass Record direction changes relative to a fixed reference direction Specifies the distance units shown on the LCD if the DISPLAY option is set to Dist Az Feet Display the distance in english units Meters Display the distance in metric units STAT Displays miscellaneous EMDEX II status quantities bat lt gt remaining usable battery voltage mem lt gt remaining data memory ver program version number lt D gt lt A gt The total distance D and the current direction heading A lt n gt K RAM Total available data memory in Kbytes type n Unit type O Standard 7 High Field units lt u gt Units of Magnetic field flux mG milligauss G Gauss uT microtesla mT millitesla 363 Selecting How Direction Changes Are Recorded To illustrate the different ways you can report direction changes using the LINDA suppose you traveled 50 meters due North turned due East traveled 50 meters turned due South and traveled 50 meters as shown in
182. ments The EMDEX II and E Probe can be used to make two types of electric field measurements spot measurements and recorded measurements The most common type is to make spot measurements of electric fields where values are read from the LCD display on the meter and manually recorded in a notebook The alternative method is to collect data that is recorded internally in the meter and then analyzed with the EMCALC 2000 program However to have electric field values displayed correctly on the meter s LCD requires a special operating program for the EMDEX II If you ordered your EMDEX II with an E Probe chances are it already contains the E Probe program In that case you are ready to make measurements and should skip ahead to the section on Performing Electric Field Measurements If you are not sure if you have the proper operating program it is simple to check by following these steps e Turn on your EMDEX ll e When the LCD displays STANDBY press the lt gt button to reach the STATUS menu e Press the Event button then the lt gt button again until the units A or units kV is displayed e fthe meter displays units kV you have the correct program If the meter does not have this display you will need to upload the correct operating program each time you use your meter to display electric field measurements See the topic Uploading a Program to an EMDEX II in the Communications section of this documen
183. mming buttons on the front panel it is convenient to quickly change these parameters with the EMCALC 2000 software This is especially true if you have several meters that you want to initialize with a certain set of default parameters These parameter changes are only effective while power is on Once you turn the power switch off then the parameters revert back to the default settings that are controlled by the operating program that is burned into your meters ROM To change the parameters in your EMDEX II meter e From the main menu choose Communication EMDEX II Set Meter Parameters e You will be presented with the following dialog box EMCALC 2000 x Make sure the communications cable is plugged in no other applications are accessing the same port and the EMDEX II displays the following message STANDBY for Standard operating programs LINDA for LINDA operating programs If the EMDEX II display is blank press the EVENT button until the word STANDBY or LINDA is displayed Cancel e When everything is ready click the OK button Canceling at this point will return you to EMCALC 2000 without trying to communicate with the meter e EMCALC 2000 will display a confirmation dialog box shown below The parameters can be modified temporarily in this dialog box and will be reset to their defaults the next time you set parameters 184 Set EMDEX II Parameters x EMDEX Parameters Storage Resutant H
184. mple Data directory e This file contains a single dataset with record type 5 X Y Z and Resultant time series data Your screen should look like the picture below after opening and maximizing the databook window LIE E Dagi AAA ftum Qe Fiki hon Laser Pret a Destaca t Cobectad data hors an HP Lanett Sp wide pring s Fennos rcacbard Randan Broadband X Compare ficacterd Y Broadband Z Component RTT uo wr ap E mar ul ENDE oF Vae ot ether armen comes dran T tnter vtri o 1003 AM 10 10 06 aM Tee Aug 11223 1300513 AN 84 Proc E MALO O d wis ron Lacer Portes mbi ES e id Field we Tene IE nar eum Te ea ea yl Reay id ae vial See e Since we don t want to change the original file let s save a copy of this file under a new name and then work with the copy e Choose File Save As from the main menu e Enter the name Copy of Fields from Laser Printer in the File name field then click the OK button e The new file will be saved to disk The new name appears on the tree in the Workspace window and in the application title bar 95 96 Change the Chart Titles Let s assume that you want to modify both the text in the header chart title and the style of the font that is used for the header The text that is used for the header is taken from the dataset description field So changing the dataset description automatically changes the chart heade
185. n sseeee 331 Stopping Data Collection tes tret ee e ERR teh pede sr 332 Using the EMDEX II for Data Collection semI 333 Using the EMDEX II as a Survey Meter ssssemHH 334 Field PolatiZation t toten t tein teet tt telae ld 336 Rough Fandlirig 5 2 2 ei eror eet ertet eet bebe eet teet ebur Beet 337 Power Requirements of EMDEX ll sss 338 Power Saving Features iicet airada id 338 EMDEX II Hardware SpecificatiONS oooonmnnccnnnnnnnnnnnnnococcconcnnnncnnnnnancnnnnnnn 339 EMDEX II Magnetic Field Range mH 340 EMDEX II Electric Field Ranges sem 341 EMDEX II Frequency Response sss 342 EMDEX II Broadband Frequency Response 40 800 Hz 343 EMDEX II Harmonic Frequency Response 100 800 Hz 344 Estimates of operational Battery Life 345 Appendix E 348 Using the EMDEX LITE aiio ettet emet ett reete te 349 Hardware Versions of the EMDEX LITE sssseseeen men 350 Changing the Batey arenisca ed 351 Collecting Data with the EMDEX LITE emm 352 EMDEX LITE Typical Battery Life and Data Collection Times 354 EMDEX LITE Specifications i em ttd att e eerta 355 EMDEX LITE Frequency Response sse 357 Appendix F 358 Using the EINDA Wheel cn ie 359 Attaching the EMDEX II to the LINDA Measureme
186. n example of a 3D Map pm La Ya Dancer och ine ido lex 030 se er oo 4 34 gt wer 8 e 500 WW Lr Map Damet Mao undes OOV A 2308 Lines 243 The 3D Map Toolbar The active buttons on the 3D Map toolbar are described below rotates the chart in a clockwise direction by 10 degrees rotates the chart in a counter clockwise direction by 10 degrees elevate the chart up 10 degrees elevate the chart down 10 degrees resets the chart back to the default viewing perspective display the X component of the magnetic field LY display the Y component of the magnetic field z display the Z component of the magnetic field B display the Resultant magnetic field 244 Customizing the 3D Map The 3D Map is created using a 3D Chart Control that is very flexible This control lets you customize many aspects of the chart such as the number and color of the bands the size of the fonts the axis labels the legend style etc To customize the 3D Map e Right click on the 3D Map chart itself e This will display the 3D Chart Control Properties dialog box shown below 3D Chart Control Properties Eg ai Chart rea PlotCube View3D Levels ChartStyles Aes ChartGroup Styles Titles Legend er Scale Title GridLines GridStyle Font Y Min v IsDefault m J E E Max 370 571 VW IsDefault Cancel Apply Help e This dialog will allow you to make the several common modi
187. n the display e Press the EVENT button to enter into the STORAGE submenu e Use the lt gt or lt gt buttons until rslt amp E appears on the display e Press the EVENT button to select this item and exit to the STORAGE menu item 385 Setting the EMDEX II Display Options The Amp Logger is designed so the E field data displayed on the EMDEX II LCD is in amperes To set the EMDEX II meter to display the E field e Using the lt gt and lt gt buttons on the EMDEX II toggle through the menu until DISPLAY appears on the display e Press the EVENT button to enter into the DISPLAY submenu e Use the lt gt or lt gt buttons until E chanel broadband E channel Eb amp Eh broadband and harmonic E channel or Eb amp Ef broadband and fundamental E channel appears on the display Select the desired quantity Displaying harmonic data requires the BANDWDTH option set to bb amp har e Press the EVENT button to select this item and exit to the DISPLAY menu item 386 Setting the EMDEX II Sample Rate When collecting data through the AUX jack on the EMDEX ll the fastest sample rate is 3 seconds The EMDEX II RATE option is used to adjust the rate e Use the lt gt or lt gt buttons until RATE appears on the display e Press the EVENT button to select this item e Use the lt gt or lt gt buttons until the desired sample rate appears on the display The fastest sample rate you will be able to use wit
188. n the file Point Source mbk located in the Data subdirect ory e Select File Open from the main menu or click on the Open button on the main toolbar e The Open File dialog box will be displayed e Select the Point Source mbk file e Click on the Open button e The Databook Window will be displayed e f not already maximized maximize the Databook window by clicking on the maximize button in the upper right corner of it s title bar It should look like the picture below after maximizing You will notice that there are some different tabs at the bottom of the Databook window Drawpath 3 D Map Contour Map and Field vs Distance EMCALC 2000 UTE KB pie dt yew Comms Tock incom kelo Ser Aur chi Yn and ded pererabon cod Ercacerd Menuet i t 2 xa E Wy Project CALC Ota Point Source no Orte A Carei A Esperar e Notice that the Workspace window now contains entries for both of the databooks that are open Quick Tour 1 and Point Source e You can activate a databook by clicking on its icon in the tree control Click on the Quick Tour 1 icon in the tree and the Quick Tour 1 databook window will be 50 activated 51 View the DrawPath Page The drawpath page is used to show the user how EMCALC 2000 has interpreted the path that was taken when the data was collected Think of it as a plan top view of the path that the user walked while using the LINDA wheel To v
189. n tnde nmn tpi de 189 Subsequent Downloads sse 189 Change EMDEX LITE Parameters sss 190 Real Time Monitoring 22 nette te ee rp e e dete 193 Program Options 196 Global OPNS rira d e ee 197 General Tab eee ie made eto deett cepe ke des dede des 199 Units Galibration Tab or ttti te denen 201 Bin Definitions TAU earen ied eme 203 Chans Talbos u tt esequi ce agus 205 Communication TaD enres rete Ue RISE 207 Events 209 Events Data Pages ene a 210 Add an EVEN a A id A adan 211 Delete and EVENE tne lie d Pesca 213 Edit am Event eget eiut quie eite 214 Statistics 215 Statistics ernannten 216 Descriptive Statistics Data Page 44444444440ennennnnnnnennnnnnennn nenn 217 Order Statistics Data Page ssssssssseeee eene 219 Geometric Statistics Data Page sss 221 Exposure Time Data Page cooooonccccnnonccccononccccnnnoncncnnnonnncnnnnnnncnnnn nn ene 223 Calculation Check Data Page sss emm eem 225 ASCII 227 ASCII Data Page io ert ub gue imei ticos 228 Export to ASCI Filed ihi oon ate nta en erect eo attese as ba d ERES 235 Drawpath 236 Drawpath Data Paga 6 pode te epe cepe diee 237 The Drawpath Toolbar Ret HR 239 Moditying the Patli dde edt deh ir 240 3D Map 242 Whats a 3D Map eee ne iat de eher ede all 243 The 3D Map Toolbar ee Bee ea 244 Customizing the 3D Map 4uusssnneeeensnnnnnennnnnnnn
190. n to start a new dataset The EMDEX II will display the word TURN then the number 0 to indicate the current direction setting It will display O until you start walking with the LINDA wheel Once you start walking with the LINDA the EMDEX II will display either the magnetic field Rb XX XX or the current distance and angle DDDD AAA Which values get displayed depends on what you set the DISPLAY option to Recording Direction Changes in Compass Mode In Compass mode changes in direction are entered as a compass heading Compass mode is used when the DIRECTION option is set to Compass To enter a direction change in Compass mode Bring the LINDA to a complete stop This automatically halts the measurements Point the LINDA in the new direction Adjust the compass on the LINDA bracket so the Alignment Arrow in the compass is aligned with the red end of the Compass Needle Note the new direction heading on Bearing Indicator at the top of the compass See the figure below Direction of Travel Arrow Bearing Indicator Allgnment Brow Bearing Compass Needle Adjustment Ring Press the lt gt or lt gt button on the EMDEX II until SET AZ appears on the EMDEX Il display This is followed by Az nnn where nnn is the old heading Press lt gt or lt gt to change the displayed number until it matches the new direction heading indicated on the top of the compass The number can be rapidly incremented or decremented by hol
191. nce o refer Dt 48 Ala aE A a A A E EEA EEEE EN eter an ore inui ai cai 50 Print the New Field vs Time Chart ssssssssssssssssssseneeenenee emen 104 Printing Data PAQGGS 22 dide RENDER Idi 175 R Feal Time Montitoririg Titi ran PA tat ss Wie nmel nie 197 Real Time Monitor Window 2 cccccceeeeeeeeneeceeeeeeeeecncaececeeeeesecccaeceeeeesesecaeaaeeeeeeeeeseesucneeeess 141 Reconstructing aCh rt nn Em 282 Record TYPOS O Eee gelang 132 Recording Direction Changes in Compass Mode ssssssee eem eem 376 Recording Direction Changes in Relative Mode ssssseeeeemn 373 Registering the Somware sai cc oet rer te e ds en detenido ERR GE 27 Rejection of Earth s Magnetic Field sssssseeee em emm eene 409 Removing Data Pages enne em nad 174 KRename a Copled Chartis dd fos ddp ta geo ape is cR HR RR ERE 285 Renaming a Databook ite nn et t e ken 149 Renaming g Dataset xod ehe e een 156 Resize the Real Time Monitor windOw ssessseeeenenene mener enne 69 Rough Handling Er tms 342 424 S saturated Data ua Area eisen 310 save Changes and Ext eerte d tende eret e Pe hse ete Enn 116 Save the Changes and Exit eene nennen eere nenne ener enn 127 Save the Changes and Exit the Application sess 105 save EUDCAd RR 60 Saving a Databook iii nee te te Hk 147 Selecting How Direction Changes Are Recorded ssssssssseee
192. nd Y axes Hold down the Shift key on your keyboard Move the mouse back and forth horizontally across the chart A set of cross hairs will be displayed that track the data in the chart A readout of the data in the chart is displayed at the top of the chart and is updated as you move the cursor It may slightly cover the chart header but that is OK it was designed that way MCALC 2000 Quick Tour 1 ze Ed Yow Commuricaion Tools widow Heb IN ale xi Du u eje t s ca fw fw e a 272 Jal E walk Downtown Emden Files 3 Guck Ton ecord 29 of 617 Jul OF 1999 a 12 28 49 11 00 mG Cursor Walk Downtown to Enertech s office in downtown Campbell Readout 30 70 i Cross Hai 60 z 50 E Si od E B aa z I z 40 2 as E 2 pa oo e L 3 T I z Broadband Resultant E i 4 gt F RE H 1230 PM 1235 PM 1240 PM Time Jumtnes9 Jduip1 rss 12 28 07 PM 12 40 52 PM E My Projects EMCALCND ata XQuick T our T mbk iat 4 Let up on the shift key to stop the cursor readout Move the mouse slightly and the cross hairs disappear but the readout will still show the last data point that was displayed To clear the chart just click on one of the other tabs at the bottom of the screen i e Exposure Time then click on the Field vs Time tab This causes the chart to be refreshed and the cursor readout is cleared This feature also works on the Field vs Distanc
193. nd transfer the measurements to a computer for storage display and analysis Using the control buttons on the unit you can program these measurement options e The measurement rate e The frequency bandwidth measured e The kind of magnetic field information stored the individual components x y and Z or the resultant e Whether to measure the electric field In order to measure the electric field an external sensor is required See Using the E Probe topic in Appendix H e Whether to store measurements in the meter s memory or have the EMDEX II act as a survey meter e The information the EMDEX II displays while it takes measurements 312 Turning on the EMDEX Il The power switch is located in the battery compartment under the slide cover Figure 2 1 Turn the meter on and close the battery cover until it snaps in place Turning off the power switch stops operation of the meter and erases all data stored in memory and all current measurement options Do not turn off the power until you are certain the data have been successfully transferred to the PC using EMCALC When the EMDEX II is turned on the unit checks its circuitry by running an internal diagnostic check The diagnostic checks the circuitry associated with the magnetic field coils but does not check the coils themselves The battery level is displayed as a percentage of usable charge For example bat 75 would indicate that 3 4 of the usable battery charge sti
194. nications EMDEX II Upload Program from the main menu EMDEX LITE Parameters 207 These are the default parameters that show up in the Set EMDEX LITE Parameters dialog box when you choose Communications EMDEX LITE Set Meter Parameters from the main menu Port Number is the serial port number in which you plugged the meters communications cable Open file after downloading should be unchecked if you are downloading from several meters or don t want to immediately view the statistical analysis or the charts You will still be prompted for start dates and descriptions of each data set but the file will not be opened after you click DONE in the Download Information dialog box Parse real time data will cause the Real Time Monitor to recognize and automatically parse the data from an EMDEX II and an EMDEX LITE Data from any other device will be separated by spaces and parsed into columns It will not be converted or manipulated If you don t want EMCALC 2000 to even parse the data you can uncheck the Parse real time data The data will then be displayed unmodified in the real time monitor window 208 Events 209 Events Data Page The Event data page displays all event markers in the dataset Event markers are flags in the dataset that mark a user defined event during the measurement session Event markers are normally entered manually using the EMDEX II Event button to mark the occurrence of an event in the dataset The EMDEX II
195. nnnn nn 378 T Taking Measurements with the EMDEX ll eneeenemeememnneen enne 333 Technical Support 2 24 teo ten te ih dde dace p ede aed 21 Terminology ionic n nde Recepta b PE roi eibi 130 Testthe Eields ne Ee ai I ER Add dte det EE ae 70 The 3D Map Toolbar ne Rt t Eee e ae adv d I a A RR 249 TEPAS CS 0 en A ee A cee eee 129 The Contour Map Toolbar nt cd t t ives dea Advan teed chet teed 256 The Data File Header nece Der ee ee PL SEE 412 The Drawpath Toolb r rip ee use eed heiter eben ER ERR e 244 The Effect of the LINDA Measurement Wheel on Field Measurements 383 The Field vs Distance Toolbar ctice2 lec Rer tirer e 265 Ihe Field vs Time Toolbar 3 rear RR Irene 271 The LINDA MONU Sirasi Ai 367 The LINDA Operating Prod Mii iia 366 The Magnetic Field Resultant Calculation and Polarization eeeees 405 titled Connecting the Amp Logger to the EMDEX ll esee mme 388 Turning Off the EMDEX 22222488 a 323 Turning on the EMDEX lI 1 22 tp ERR E er mr epo tee pires 318 U Uninstalling EMCALG 2000 iit oce bot ce tid ebbe dle et te a niet nce lets 29 Wit TYPOS E DETUR 134 425 Unils Galibratlonm Tab nennen 205 Uploading a Program to an EMDEX ll sss emm emm emere 185 Using the AmpsLogger etc e eerte e dero dU eredi eo d HG e odds 386 Using the EMDEX II as a Survey Meter ssssss
196. nnnnnnnnnnnnnnnnennnnnnnn nn 245 Change the Colors of the Bands 4444244400sssnnnnnnnnnnnnnnn nn nenn 246 Contour Map 249 What is a Contour Map sssssssssssseeeenene eene 250 The Contour Map Toolbar ccccceceeeeeeceeneeceeeeeeeseecacaeeeeeeesesennuaeeeeees 251 Customizing the Contour Map seee emm 252 Change the Colors of the Contour Lines ssse 253 Changing Contour Levels eene eee 256 Field vs Distance 258 What is a Field vs Distance chart sssssssseee m 259 The Field vs Distance Toolbar ssseem em 260 Customizing the Field vs Distance chart 262 Zooming the Field vs Distance chart ssssessseeee 263 Field vs Time 264 What is a Field vs Time chart ssssssse mem 265 The Field vs Time Toolbar emen 266 Customizing the Field vs Time chart ssse 268 Zooming the Field vs Time chart enn 269 Cursor Readout of Data aissis eris nar iiini erisia ai aat 272 Chart Basics 274 2D Charts caches ieee fruc ott HM diner sie 275 A iret ot Reo t itunes tet ae 276 Reconstruct a Charla rita e de e cedere des 277 Print Chart ctt t eee tados 278 Copy a Gliart tee eoo fte Ro eode dt 279 Rename a Copied Chart esssssssssssseeeeememeemr 280 Delete a Copied Chart eene 281 Changing the Default 2D Chart ssssssssseeeeeen 282 Changing the D
197. ns harmonic data record types 2 4 and 6 will result in the harmonic data being ignored in the converted file The area to be mapped To properly implement this feature a user can map an area by walking a specific pattern within the room or area and pressing the EVENT button on the EMDEX II at every turn The event markers will be used to identify turning locations The user should walk at a constant speed along the specified path since the program averages the number of measurement points over the distance between event markers where turns are recorded In addition the specific path must be documented within the room or area and X and Y coordinates must be determined for each turn location It is extremely helpful to have a scale drawing of the area in order to draw the route walked and indicate locations where turns are made Making the measurements Determine the measurement path around the room or area to be mapped with appropriate starting stopping and turning locations Be sure to encompass the perimeter of the room or area to get a uniform representation of magnetic fields throughout the entire measurement area At the starting location initiate data collection and press the EVENT button to designate the starting location Walk at a constant speed along the pre designated measurement path pressing the EVENT button at each turning location Be sure to keep the EMDEX II oriented in the same direction if you are recording X Y amp
198. nt Wheel 360 The LINDA Operating Program sese 361 The LINDA Menus coca A 362 Selecting How Direction Changes Are Recorded ssssssss 364 Setting the Direction Option ias aee aiee ra aE meme 366 Setting the LINDA Display Options em nennen 367 Recording Direction Changes in Relative Mode u 4 ne 368 Starting Data Collection with LINDA em nn 370 Recording Direction Changes in Compass Mode sseseesss 371 Stopping Data Collection with LINDA ssssesee 373 Howto Use the COmPasSicitaii een 374 Measuring Non linear Paths ssssssseeeee eem 377 The Effect of the LINDA Measurement Wheel on Field Measurements 378 Effects of Terraln eek edat A En 379 Appendix G380 Using thie AmpsLOoggGr omisi n 381 Before you Begin Special Operating Considerations 382 Connecting the Amp Logger to the EMDEX ll nasses 383 Setting the EMDEX Il Storage Options ssssmmm 385 Setting the EMDEX II Display Options sesmmmIH 386 Setting the EMDEX Il Sample Rate sss 387 Using the Linesplitter Accessory sssse me 388 Amp Logger Hardware Specifications essssseeeeeene 390 Amp Logger Frequency Response ssssssee eene 391 Appendix H 393 Using the E Prob
199. ocations for LINDA type datasets To create a subset dataset e Right click on the dataset name in the workspace window tree e Depending on the type of data in the dataset e Choose Subset Event Marker from the context menu e The dialog box shown below will be displayed e Entering event 0 will use the start of the dataset entering event Total 1 will use the end of the dataset Event Marker x Event Total 7 Start E vent d Stop E vent 8 Cancel Or e Choose Subset Time from the context menu e The following dialog box will be displayed 161 Start Stop Time Jul 70171999 12 28 07 PM Jul 201 1999 x e Choose Subset Distance from the context menu e The following dialog box will be displayed Start Stop Distance After entering the required data a new untitled databook will be created with the newly created subset dataset 162 Dataset Properties Dataset Properties are initially set to the Global Options but can be modified and saved to the file on a dataset by dataset basis Dataset Properties are identical to the Global Options excluding the General and Communication tabs which are application wide settings and do not affect individual datasets In addition to the tabs listed in Global Options Dataset Properties contain a Dataset Properties tab Any modifications made to the dataset options will only affect that particular dataset If you would like to apply a
200. ode and Computer ID generated by the software The Customer Code and Computer ID are required to generate an unlock code e Send the Register txt file via e mail to Enertech at sales enertech net e Anunlock code will be sent to you via e mail using the address entered on the registration form e When you receive the unlock code you need to go through the Registration Wizard clicking the Next button until you come to the User Registration dialog box e Enter the unlock code in the proper field and click on the Finish button e You should receive a confirmation message indicating that the software was successfully registered Note If the software does not accept the unlock code check that you entered the correct unlock code If it still does not accept the code contact Enertech Consultants Keep in mind that the unlock code only works on one computer You need to generate a Customer Code and Computer ID for each computer that you install the software on and then obtain a unique unlock code for each computer 26 Starting and Exiting EMCALC 2000 To start EMCALC 2000 e From the Windows Start menu click Programs e Select the EMCALC 2000 group then the EMCALC 2000 icon The first time you run EMCALC 2000 you will be asked to register the software If you do not register the software it will run in demo mode thus not allowing you to perform calculations You will be prompted to register the software each time you start the appli
201. oil 360 The LINDA Operating Program When the LINDA program is running on the EMDEX II the word LINDA is displayed after the initial power up sequence This word is displayed in place of the word STANDBY used by the normal operating program When the LINDA program starts it uses the default parameters shown in the table below Sample Rate Bandwidth Operational Mode Direction Units Display 1 5 seconds between measurements This is a fixed value and cannot be changed The LINDA software stores magnetic field measurement at the broadband 40 800 Hz frequencies normal Display and store measurements in memory Rt Lt Direction changes are recorded relative to the current direction of travel Feet Display distance units in English units R Broad Display the magnetic field resultant on the LCD You may modify the operational mode direction units and display parameters You cannot change the sample rate or bandwidth since the meter needs to take measurements as fast as possible 361 The LINDA Menus There are seven LINDA menu items used to select various EMDEX II options These menu items are shown in the table below 362 Men Opti on LIND RUN OP MOD DISP LAY DIRE CTIO UNIT Description LINDA Standby mode The meter is waiting for your instructions or waiting to transfer data to a PC Begins measurements Specifies the operational mode determines whether
202. ok is automatically created whenever you download data from your EMDEX meter However if you want to create a new empty databook so that you can add datasets manually you can do that by following the steps below To create a new Databook and add it to the workspace e Choose File New Databook from the main menu Or e Click on the New Databook icon on the EMCALC 2000 toolbar Or e Right click on the EMDEX Files folder in the Workspace window tree and choose New Databook from the context menu Completing any of these instructions will cause a new untitled databook to be added to the workspace 143 Opening a Databook To open a databook e Click on the Open Databook toolbar button Or e Select File Open Databook from the main menu Or e Right click on the EMDEX Files folder in the workspace window tree e Choose Open Databook from the context menu You are then presented with the standard Windows file open dialog box Use this dialog box to browse to the directory that contains the databook file that you would like to open Select the file that you want to open then click the Open button Multiple databooks can also be selected and opened at the same time To activate a Databook window that is open but not currently visible e Click on the databook name or it s icon e in the workspace window tree With the current design EMCALC 2000 could take a significant amount of time to open the databook file This depends on the
203. ome pertinent information about each dataset such as the Start Time Bandwidth Storage Sample Rate and Unit Type The External Probe and E Calib Constant fields will be blank since you did not use and external probe when collecting this data e Click on the blank field under the Description heading e Enter a description for the data set Enter the text Data collected during Quick Tour 2 then click on the DONE button e Anew databook window will be displayed with the title My First Data Also a new entry will be added to the Workspace window for the databook My First Data and 73 it s single dataset Dataset 1 Maximize the databook window by clicking on the Maximize icon located in the upper right corner of the databook window Your screen should look similar to the picture below However the shape of the data in the chart will be different since your data is unique 74 EMCALC 2000 My First Data on 2 sE NE HIE aa fe E22 fun ze fue al Dats collected during Quick Tour 2 g i i uo 11 04 AM Time JULGON 999 Aul30N 993 11 01 21 AM 11 04 00 AM E My Projects EMCALCND ata My First Data mok Edit the Event Marks Lets assume that the event marks actually meant something in the data Let s assume that Event 1 indicated that you entered an elevator and that Event 2 indicated your exiting the elevator Notice that the event marks on the Field vs Time page simpl
204. only alkaline mercury or lithium batteries for important data collection sessions The LITE is designed to operate with very low battery drain When the unit is in the Data Collect OFF mode it retains the measurements in its internal memory for months before critically draining the battery The table below summarizes the typical battery life of various sample rates The EMDEX LITE must be ON in order to keep the data in its memory You must download any data to the PC using EMCALC before turning the LITE OFF or you will lose your data 351 Collecting Data with the EMDEX LITE There are two switches on the top ofthe EMDEX LITE a Power switch and a Data Collect switch The Power switch has a small red marker next to it It is used to turn the unit on and off The Data Collect switch is next to the power switch and is used to start and stop data collection If you have collected data using the unit you should never turn the power switch OFF until you have successfully transferred the data to a PC using EMCALC The procedure for transferring data to the PC is described in the topic titled Downloading Data from an EMDEX LITE in the Communications section of this document e Before an important data collection session install a fresh 9 Volt battery in the unit Make sure the Data Collect Switch is in the Idle End position e Turn the Power switch to the right to turn the unit on If the Data Collect switch is in the Data Collect position
205. ontrol presents all the data files currently open and enables some powerful editing features through Drag and Drop functionality 15 EMDEX ll Meter The EMDEX II is a programmable data acquisition meter which measures the x y and z vector components of the magnetic field through internal sensors The meter can also measure the magnitude of the electric field through the use of an external sensor like the Enertech Electric Field Probe Measurements are stored in the meter s memory and later transferred through a serial communications port to an IBM compatible Personal Computer for storage display and analysis The EMDEX II size and weight make it suitable for use as a stationary area monitor and for personal measurements lts flexibility and ease of use make it adaptable to simple and complex measurement protocols For details on using the EMDEX II meter see Appendix D in this document 16 EMDEX LITE Meter The EMDEX LITE described in the EMDEX LITE User Manual is a smaller lighter version of the EMDEX II with a subset of the EMDEX II measurement features Like the EMDEX Il it measures the x y and z magnetic field components and stores them in its internal memory which can later be transferred to a PC The user interface for the meter is extremely simple which combined with its size and weight makes it especially suitable for personal magnetic field measurements For details on using the EMDEX LITE meter see Appendix E in
206. ook and its datasets will be removed from the workspace tree 146 Renaming a Databook You can t actually rename a Databook but you can save it with a new name which is essentially doing the same thing To save a databook with a new name e Right click on the databook name in the workspace window tree e Choose Save As from the context menu e The standard Windows Save As dialog box is displayed e Enter a new filename and click on the Save button 147 Copying a Databook You can t actually copy a Databook but you can save it with a new name which is essentially doing the same thing To copy a databook e The best way to copy a databook is to simply make a copy of the file using Windows Explorer Or e Right click on the databook name in the workspace window tree e Choose Save As from the context menu e The standard Windows Save As dialog box is displayed e Enter a new filename and click on the Save button 148 Exporting a Databook to an ASCII File The Export to ASCII option will create a tab delimited text file that contains everything you see on the ASCII data page for a given dataset The Events and Statistics pages cannot be exported to ASCII files but they can be copied to the Windows clipboard and then pasted into a spreadsheet or word processor To export all or some of the datasets in a databook to ASCII files e Right click on the databook name in the workspace window tree e Choose Export to
207. oom in on portions of the Field vs Time chart in order to get a better view of some of the data There is a maximum of 20 zoom levels You can zoom in up to 20 times then zoom back out 1 level at a time or reset the zoom level to the entire chart Note this feature is also covered in Quick Tour 1 To zoom in on a portion of the chart e You define a zoom area using the mouse to indicate the left and right edges of a zoom window e Click and hold down the left mouse button on the portion of the chart where you want start the zoom window e While still holding down the left mouse button drag the mouse cursor horizontally across the chart until it located at the end of the zoom window e You will see a black Zoom box drawn as you move the mouse It will look like similar to the picture below EMCALC 2000 Quick Tour 1 1 Ele Edt View Communication Tools Window Help JD HE FEST ie Epp Tuve Ue ea Hd Sy mui Downtown Emden Files e Quick Tour 1 Data collected wide waking trom Campbell Inn Walk Downtown to Enertech s olfice in downtown Campbell Under Dietebation Line Broadband Resultant 2 FEE ss X gt Under 16k Tower meting Din Ase Al Er ca Totor Magnetic Field mG 1230 PM Juni 1999 Jut rr ges 12 28 07 PM 12 40 52 PM E My Progects EMCALCSD ata Quick T our 1 mbk 269 Let up on the left mouse button The chart will be redrawn to display only those records that fell within
208. or analysis You would do this by following these steps Right click on the dataset icon named Dataset 1 in the Workspace Tree Choose Create ASCII View from the context menu This will add a new page to the databook window called ASCII Data and it will be activated This spreadsheet lets you view all of the pertinent information in the dataset The first several rows contain header information about the data Following this information are rows containing the actual measurement data Use the vertical and horizontal if present scroll bars to view all of the data The Broadband Resultant column contains the magnetic field data The Key column contains internal information about the data record such as what scale the meter was on when the data was collected and whether or not the data was saturated The Date and Time columns are what the names imply The Record Number is what its name implies The Event column contains the ordinal number of the event mark if one exists on that record To dump this data to an ASCII text file Choose File Export ASCII from the main menu The standard Save As dialog box will be displayed By default the name of the text file will be Databook Name Dataset Name You can accept this default name or type in one of your own You don t need to type in an extension An extension of TXT will automatically be appended to the file indicating that this is a text file You can also change the dir
209. orage for E field measurements e Select STORAGE measurement option e Press the lt gt or lt gt Toggle Buttons until the rs f amp E option appears e Press the Event Button to select the option STORAGE reappears on the LCD to complete the selection e Select any other desired measurement and LCD display options e Plug the sensor into the AUX jack located on the side of the meter e Select the RUN option to begin measurements 324 325 Setting the LCD Display The DISPLAY measurement option is used to program the EMDEX II to display different quantities on the LCD during data collection The available display quantities depend on the frequency response of the meter selected using the BANDWDTH option The table below summarizes the displayed quantities Frequen Displ cy ayed Qua Description Respons ntity e Broadba rsult Resultant magnetic field nd nt x x channel magnetic field chan el E Electric field chan el batt Battery Voltage ery Broadba Rb amp Broadband and Harmonic nd amp Rh Resultant Harmoni Rb amp Broadband and Fundamental C Rf Resultant Xb amp Broadband and Harmonic X Xh channel Xb amp Broadband and Fundamental Xf X channel Eb amp Broadband and Harmonic E Eh channel Eb amp Broadband and Fundamental Ef E channel batt Battery Voltage ery 326 To select the LCD Display e Select the DISPLAY measurement option e The LCD shows the Display selection If itis OK pressing the EVEN
210. ort An error occurred while initializing communications port Make sure no other applications are accessing the same port Close down any applications that may be using the port and confirm that you have selected the correct Port Number in the Communications tab of the Options dialog box e The EMDEX II meter should display READY or LINDA depending on which program Standard or LINDA is loaded into the meter First make sure the meter has stopped collecting data you can stop gathering data by pressing all three buttons simultaneously If the meter is currently in another menu mode try pressing the Event button until READY or LINDA is displayed If the battery is too low to even display anything on the LCD you can still try to download as is but without battery power data will be lost e DO NOT turn off the power switch on the meter after collecting data otherwise all data will be lost 177 Downloading Data from an EMDEX Il First make sure you have completed the EMDEX II Communications Checklist before proceeding From the main menu choose Communication EMDEX Il Download Data You will be presented with the following dialog box EMCALC 2000 x A Make sure the communications cable is plugged in no other applications are accessing the same port and the EMDEX II displays the following message STANDBY for Standard operating programs LINDA for LINDA operating programs If the EMDEX II displ
211. ot exist e Right click on the dataset name in the workspace window tree e From the context menu highlight the Create Data Page menu item e Select the menu item of the page that you want to create e Depending on the record type you can add the following data pages Statistics Descriptive Order Geometric Exposure Time Calculation Check ASCII View Field vs Time Field vs Distance 3D Map Contour Map and Drawpath 169 Removing Data Pages To remove a data page e Right click on the dataset name in the workspace window tree e From the context menu highlight the Remove Data Page menu item e Select the menu item of the page that you want to remove e Depending on the record type you can remove the following data pages Statistics Descriptive Order Geometric Exposure Time Calculation Check ASCII View Field vs Time Field vs Distance 3D Map Contour Map and Drawpath 170 Printing Data Pages You can print any data page in a data set However before printing the spreadsheet style data pages Events Descriptive Order Geometric Exposure Time Calculation Check and ASCII you should first go to Page Setup and customize the margins The Drawpath and chart pages do not allow the user to modify the margins they are always printed using the maximum printable area Note for the best looking output you should first maximize a chart data page before printing it To print a data page e First make sure the dat
212. ou wish to traverse all the data points along the path you can select View Traverse All Records from the main menu or click on the Traverse all Pa Records button LJ on the toolbar You can also traverse all the records by holding down the Control key while pressing the up and down arrow keys e Notice the information about your current position displayed in the lower left corner of the status bar This information is updated automatically while you traverse the path and displays the current Record number total cumulative Distance from the start location to the current position along the path the current record s Angle and the X and Y coordinate information for the current position e Continue pressing the up arrow until you reach the record that you want to edit e Select Edit Modify Angle from the main menu or press Alt A on your keyboard or simply double click the mouse on the Drawpath map You will be presented with the following dialog box Modify Angle LX Angle m v Update all subsequent vertices Cancel e Enter a new angle value between 0 and 360 which corresponds to the compass directions shown in the figure below If the data was collected in Relative mode 240 the starting direction is referenced as 0 due North on a compass and turns made along the measurement path are presented as angular values relative to this reference Although LINDA datasets can be created using two different type
213. own below will be displayed e Make any necessary changes then click on the OK button e f you have any databooks currently open then you will be asked if you would like to apply these new options to all datasets in each open databook You can answer Yes to apply the changes to a single databook Yes to Allto apply the changes to all databooks No to skip the current databook or No to All to skip all the remaining databooks NOTE Applying the global options to all datasets in a databook not only applies the modified options on one tab but all options modified or not on all option tabs After datasets are created in EMCALC 2000 it is recommended that you modify options through the Dataset Properties to avoid undesired results 197 DA AAA SN 198 General Tab The general tab allows you to set several options regarding data pages group datasets and EMCALC 2000 startup screen Options x General Units Calibration Bin Definitions Charts Communication v Always create Field vs Time v Always create Field vs Distance Alway create Drawpath Always create 3D Maps Always create Contour Maps Always create ASCII view Always create Group Dataset IV Show Startup Screen Show All Chart Edit Properties Always create all statistics indicates whether all new databooks opened in EMCALC 2000 will automatically create all possible statistical data pages for each dataset within th
214. period until beginning the next data set The EMDEX II enters a sleep mode to conserve You may use the same measurement options as the previous data set by starting another data set or you may change the options Important Be sure to transfer the data to a computer when finished f the EMDEX Il is allowed to sit for an extended period with the battery at 0 the data may be lost 332 Using the EMDEX II for Data Collection The OP MODE option is used to choose one of two data collection operating modes In normal mode the data are collected and stored in memory In the survey mode data are measured but not stored To select the EMDEX II for data collection e Select the OP MODE measurement option e The LCD displays the current Data Collection Mode normal or survey e Press the lt gt or lt gt buttons until normal is displayed on the screen e Press the EVENT button OP MODE appears on the LCD indicating that you have completed the selection 333 Using the EMDEX Il as a Survey Meter The OP MODE option is used to choose one of two data collection modes In normal mode the data are collected and stored in memory In the survey mode data are measured but not stored This allows you to survey the magnetic and electric fields With the EMDEX II running in survey mode one of the following quantities can be continuously measured Broadband resultant magnetic field Harmonic resultant magnetic field Broadband x axis magnetic fie
215. plication title bar e Your screen should look like the picture below after saving the file to a new name Mire d yew Commancaon cok iinde biel 18i x SSC anal tee oe Let BT 5 Cory of LOK Une Hag gt Daacet 1 E My Prat IMCALO Data Cops ol S00 KW Line Map nib EY TS FM MUTATION od 107 Change the Color Bands Let s say that you don t really like the carefully coordinated colors that were generated by the default chart and you want to change them e Click the right mouse button on the 3D Map chart to display the 3D Chart Control Properties dialog box e Next click on the Levels tab This tab lets you define the contour levels that are used to draw the color bands on the 3D Map Notice that the eleven ContourLevels defined for this chart are 0 5 1 2 5 10 25 50 100 500 1000 and 3000 The number of levels is denoted by the number 11 in Levels field which is located above the Load button e The dialog box will look like the picture below 3D Chart Control Properties ES Legend ChartStyles Axes ChartGroup Styles Chart rea PlotCube View3D ContourLevels a FT IsDefault Levels 1 Load Save m Remove Cancel Apply Help e Now click on the Styles tab and then click the FillStyle sub tab to activate it This tab lets you modify each of the colors used to fill the bands on the chart e The dialog box will look like the p
216. pped 72 Download the Data To download the data from the meter to your PC e From the EMCALC 2000 choose Communication EMDEX Il Download Data from the main menu e You will be presented with a message indicating that the meter should be in Standby mode and that the serial cable is plugged into the meter e Once you have confirmed these two conditions click on the OK button If the meter s LCD screen is blank this indicates that the meter has gone into a low power or sleep mode To wake it up press the Event button one time and the word STANDBY should appear e The standard file Save As dialog box will be displayed The default directory is called Data and is located under the directory in which you installed the software e Enter the text My First Data in the File Name field You do not need to enter an extension The extension MBK which stands for EMCALC Data Book will automatically be appended to the file name e Click on the Save button e A dialog box will be displayed indicating that the software is attempting to establish a communication link with your meter The meter should display the text Comm PC on it s LCD e Nexta status message will be displayed indicating the progress of the download e When the download is complete the Download Information dialog box will be displayed as shown below This dialog box allows you to enter a description for each dataset in the file It also displays s
217. presents the user with a reference number which is typically written in a diary along with a description of the event Event markers may be added modified and removed from a dataset using EMCALC 2000 All events have their own description field which can be entered at any time on the Events data page Event markers are always listed by increasing date time stamps and will be automatically sorted after modifications have been made Click on this Double click here to button to add change the date time an event or distance of an event lumbre is Ma 16 EE DO CTA a BE mu Jumi 08 1233359 Crossing Giman ane MAA RAB 12153 t JU 1 1988 1238 78 PM Corsig Rabe Am TOSSING Rahmen Aue Ju91 1898 1240 41 PM techs Right click here to display a Double click here to type context menu directly into the 210 Add an Event You can add event marks to any dataset using the EMCALC 2000 software This may be necessary when you forgot to manually enter an event mark with your EMDEX II meter This is especially important when getting prepared to use the Convert to LINDA feature To add an event e First activate the Event page by clicking on the Event tab on the dataset sheet e Click on the Add Event button I on the toolbar Or e Right click on an existing event in the list or if no events are in the dataset right click anywhere in the grid sheet e Select Add Event from the context menu e You
218. pressing the Enter key on your keyboard Start Date is the start date of the dataset You can change the start date by clicking on the dropdown list box and choosing a new date on the calendar control that is displayed Start Time is the start time of the dataset You can change the start time by highlighting the parameter hours minutes seconds AM PM and either entering a new value or using the spin control buttons 1 to the right of this field to increase or decrease the value Stop Time is determined by the Start Time Sample Rate and Number of Records Record Type indicates the type of data in the dataset See the Record Types topic in the EMCALC 2000 Basics section of this document for details Sample Rate indicates the number of seconds between each sample Unit Type indicates the type of meter that was used to collect the data See the Unit Types topic in the EMCALC 2000 Basics section of this document for details Number of Records indicates the number of records in the dataset 164 Number of Events indicates the number of event marks in the dataset For detailed descriptions of the remaining tabs see topics Units Calibration Tab Bin Definitions Tab and Charts Tab in the Global Options section of this document 165 Data Pages 166 Data Pages The Data Pages are the tabs located at the bottom of the Databook window Each page represents a different view ofthe data Some pages contain spreadsheets Event
219. produces one signal per foot traveled Azmth is the compass bearing of the direction of the LINDA wheel at the time the measurement was made 0 is defined as the direction of the wheel at the first measurement X is the location of the measurement along the x axis of the data grid defined by a LINDA wheel data path relative to the origin coordinates Y is the location of the measurement along the y axis of the data grid defined by a LINDA wheel data path relative to the origin coordinates Key is the binary value of the data record s key byte See Appendix K for details on the key byte for a particular record type Date is the date the measurement was taken Time is the time the measurement was taken Record indicates the measurement number Event indicates the event number for a measurement 233 234 Export to ASCII File You can export the entire contents of the ASCII data page to a tab delimited text file which can then be imported into a spreadsheet program or statistical analysis package for further analysis To export the ASCII data page to a text file e Right click on the tab at the bottom of the ASCII page the one with the name ASCI e Choose Export ASCII from the context menu Or e Right click on the dataset name in the workspace window tree e Choose Export ASCII from context menu Then e You are then presented with the standard Windows Save As dialog box Use this dialog box to browse to th
220. program into your EMDEX Il The process for achieving this is to temporarily upload a new program into the meters Random Access Memory RAM This new program overrides the default program that is in EPROM However once you turn the meters power switch off the program in RAM gets erased and the meter reverts back to the default program in EPROM To upload a new operating program into your EMDEX II meter e From the main menu choose Communication EMDEX Il Upload Program e You will be presented with the following dialog box EMCALC 2000 x Make sure the communications cable is plugged in no other applications are accessing the same port and the EMDEX II displays the following message STANDB Y for Standard operating programs LINDA for LINDA operating programs If the EMDEX II display is blank press the EVENT button until the word STANDBY or LINDA is displayed j Cancel e When everything is ready to begin uploading click the OK button Canceling at this point will return you to EMCALC 2000 without trying to communicate with the meter e You will be presented with the following dialog box that allows you to change the upload settings for this single instance Upload EMDEX Il Program x EMDEX II Program Standard C LINDA Custom Browse External Probe Amp Logger Magnetic Field Units niti auss m 181 e Select whether you want to upload a Standard program a LIND
221. r 1 The basic perimeter of the room is measured by following the measurement path through event markers 2 3 4 and 5 In order to get representative measurement data near the center of the room the measurement path includes two passes lengthwise down the room at event markers 6 7 and 8 Our sample ending point is therefore designated as event marker 8 where measurements would be terminated Any measurement data collected prior to event marker 1 and after event marker 8 will be ignored during the conversion process Once the sample measurements have been conducted and you stopped data collection you should prepare a list that identifies each event marker with an X and Y coordinate value This list would be similar to the table below Event X Y Marker Coord Coord Number inate inate 1 2 7 2 15 7 291 3 15 0 8 4 0 8 0 8 5 0 8 3 2 6 13 4 3 2 7 13 4 5 7 8 0 6 5 7 After data is collected you need to download the data to your computer See the Downloading Data from an EMDEX II topic in the Communications section of this document 292 Converting the Data To convert the data file to a LINDA file e Open the Databook that contains the data to be converted e Goto the Events page and verify the event markers to be sure that all markers were recorded correctly e Make corrections to any of the event markers as needed e Right click on the dataset name in the Workspace tree and choose Convert to LINDA from the context menu e
222. r nen n cnn ran EARRA REET Eia 194 Change Floor and Gelling re ea se nei 113 Change the 3D Map Title 2 ot ilc er tene ae Bee 115 Change the Color Bands ect eet Be ai 109 Change the Colors of the Bands sss eene eene nennen nennen nennen nns 251 Change the Colors of the Contour Lines eene nennen eene 258 Change the Contours to Zones ussssnneensssnnnnnnssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn en 59 Change the Legend Style vic ner 114 Change the Series Lines 12222 8 2 ada 100 Change the Title Font Size edite ete toe He 98 Change the eii a 102 Changing Contour Levels ceo LE ke Le 261 Changing the Battery eis screens sep te ten e Lebe 356 Changing the Battery on the EMDEX lI enm emm nemmmnnemennrrenen rra 322 Changing the Default 2D Chart sassari nsere ranan naa Aar ene nennen enne eerte 287 Changing the Default 3D Chart ssssssssssssseeeee eene nennen mener enne nnns 290 Charts m 209 Checking the Status of the EMDEX ll ooo eee sese eene enne nnns 324 Glose arid EX A ee 93 421 Glose the Databook men nenne ee Acted Soa 83 Closing a Databook cit dere sehr 148 Collect SomieijData ire er re oe erede o eee 63 Collecting Data with the EMDEX LITE ssesseseeene eene nemen nnnm enne 357 Collecting the Data Meise Re er dci heeded 295 Gommu nication ODptlons 2 5 0 rera nalen oM ert ame dde HERI Pep d eR 211 Connect the Ser
223. r text Let s also assume that you want to hide the footer which presently displays the full path name of the databook file To change the chart header text Right click on the Dataset 1 icon in the Workspace tree Choose properties from the context menu to display the Dataset Properties dialog box shown below Dataset Properties Ed Dataset Properties Units Calibration Bin Definitions Charts Databook Copy of Fields from Laser Printer Dataset Description Collected data from an HP LaserJet 5p while printing Start Date Aug 11 1899 Start Time 10 01 45 AM Stop Time Aug 11 1999 10 05 13 AM Record Type 5 Number of Records 140 Sample Rate 1 5 sec Number of Events 4 Unit Type EMDEX II 0 __ Cancel Apply e Use your mouse to select the existing text in the Description field then enter the following new text HP LaserJet 5p Printer e Next click on the Charts tab e Hide the footer by un checking the box titled Footer e Click on the OK button 97 The chart header will be updated with the new text description and footer is now hidden Change the font style for the header by right clicking on the chart This will display the 2D Chart Properties dialog box Click on the Titles tab The Header should be selected in the Titles tree control on the left side of the dialog box Click on the Font tab Next click on the Change
224. ration Constant of 0 752 uA Amp 388 389 Amp Logger Hardware Specifications Overall Dimensions1 6 x 2 2 x 2 2 4 x 5 6 x 5 6 cm Weight2 2 ounces 63 g Operatin Temperature32 140F 0 60C Cable Length9 23 cm nominalMeasurement Accuracy calibrated frequency 50 60 Hz0 10 0 19 Amps Typical 7 Maximum 15 0 20 0 99 Amps Typical 3 Maximum 10 1 00 200 Amps Typical 2 Maximum 8 Maximum Resolution0 01 AmpsCurrent Range0 10 to 200 AmpsFrequency Response40 420 Hz Flat Response 30 Voltage Rating750 VAC MaximumProbe Input Current milliamp per ampere input current 1 mA A Probe Shunt load ResistanceLess than 12 ohms at inputTemperature ErrorsReadings will vary no more than 3 per 10C change of temperature in the range of OC to 50CMagnetic Interference ErrorNo more than 0 025 Amps per 1000 mG 390 Amp Logger Frequency Response The figure below shows the Broadband frequency response of the EMDEX II with the Amp Logger attachment The device is calibrated at a fundamental frequency of 50 or 60 Hz Normallzed Signal Strength 1 04 ais 0 5 BRD 0 1 2 5 20 100 7000 10000 Frequency Hz The figure below shows the Harmonic frequency response of the EMDEX II with the Amp Logger attachment 391 Normallzed Signal Strength 0 1 spe ittis ipu agde ERSE Aa Sh 100 200 500 1000 2000 6005 10000 Frequency H2 392 Appendix H 393 Using the E Probe The E Probe el
225. resultant in digital units Key byte Bit 0 Event mark O no 1 yes 1 2 Scale factor 3 4 Not used 5 Bad data flag 6 7 Not used Data Record Type 6 Record Type 6 is an 18 byte data record containing both broadband and harmonic magnetic field x y z and resultant This record type is used when the EMDEX II STORAGE option is set to rsit xyz magnetic field resultant and x y and z components and the BANDWDTH option is set to bb amp har broadband and harmonic Byte 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Description A D Broadband X axis in digital units A D Broadband Y axis in digital units A D Broadband Z axis in digital units A D Broadband resultant in digital units A D Harmonic X axis in digital units A D Harmonic Y axis in digital units A D Harmonic Z axis in digital units A D Harmonic resultant in digital units Key byte Bit 0 Event mark O no 1 yes 1 2 Broadband scale factor 3 4 Harmonic scale factor 5 9 Not used 10 Broadband bad data flag 11 Harmonic bad data flag 12 15 Not used 419 Data Record Type 7 Record Type 7 isa 14 byte LINDA data record containing cumulative distance direction and the broadband magnetic field x y z and resultant It can only be produced by the LINDA Operating Program running on an EMDEX Il Byte Description 0 1 A D Broadband X axis in digital units 2 3 A D Broadband Y axis in digital units 4 5 A D Broadband Z axis in digital units
226. rious danger to the user and meter can result The electric current reading recorded by the EMDEX II is affected by the magnetic field present at the EMDEX II s Amp Logger s and current probe s location Since the magnetic field is recorded along with the probe reading it is possible to determine the worst case error introduced by the presence of a magnetic field Based on tests performed on EMDEX II meters manufactured prior to April 1993 a worst case error in the electric current reading of 0 212 Amps is introduced per 1000 mG of magnetic field flux density where the EMDEX II is located EMDEX II meters manufactured in April 1993 and later have worst case errors of 0 025 Amps per 1000 mG For example if an EMDEX II manufactured prior to April 1993 was placed in a 500 mG field while recording the current with the Amp Logger an error of up to 0 106 Amps would be introduced in the reading It is important to realize that 1 this is the maximum error introduced by an external magnetic field 2 areas of high magnetic fields are usually associated with high currents so the percent error caused by the magnetic field in the vicinity of the meter may not be important Extension leads can be used to locate the EMDEX II in lower field areas The EMDEX II should be placed in a region of relatively low magnetic fields for maximum accuracy However the simultaneous measurement of the magnetic field will be artificially biased to low levels U
227. rned in to the EMDEX II so it automatically runs when the EMDEX II is powered up This burn in must be performed by Enertech Consultants for an additional charge Contact the Enertech Consultants sales department if you are interested in this feature Compass EMDEX Il Bracket a Aluminum Handle Mechanical Gdometer 359 Attaching the EMDEX Il to the LINDA Measurement Wheel Be sure the EMDEX II is running the LINDA Operating Program before you attach the meter to the LINDA Wheel You can check this by seeing if LINDA is displayed on the meter s LCD either by toggling through its measurement options or when you power the meter on Reprogramming the meter with the LINDA Operating Program is described in the topic titled Uploading a Program to an EMDEX II in the Communications section of this document Place the meter in the EMDEX II Bracket located near the handle of the LINDA Measurement Wheel Position the EMDEX II so its screen and control buttons are easily accessible Butt the end of the EMDEX II against the back of the bracket and tighten the nylon strap around the meter Plug the subminiature jack coming out of the LINDA handle into the REMOTE connector on the EMDEX II as shown in the picture below Jack connection to LINDA Wheel With the EMDEX II in the bracket the meter is oriented so the horizontal plane is defined by the x and z coils and the vertical component of the field is measured by the y c
228. rsion file EMCALC 2000 does not convert EMDEX 100 or EMDEX C files Converted to LINDA File indicates whether the dataset was created by the EMDEX II to LINDA File X Y Origin Coordinates indicates the coordinates of the origin for an area map The data records in the dataset are presented in column format with the following possible headings depending on record type Broadband Resultant is the value of the magnetic field broadband resultant Broadband X is the value of the magnetic field broadband component in the x direction Broadband Y is the value of the magnetic field broadband component in the y direction Broadband Z is the value of the magnetic field broadband component in the z direction Harmonic X is the value of the magnetic field harmonic component in the x direction Harmonic Y is the value of the magnetic field harmonic component in the y direction Harmonic Z is the value of the magnetic field harmonic component in the z direction Harmonic Resultant is the value of the magnetic field harmonic resultant Broadband E is the value of the broadband E field 232 Harmonic E is the value of the harmonic E field Broadband Load is the value of the broadband current for data taken with the EMDEX II Amp Logger Harmonic Load is the value of the harmonic current for data taken with the EMDEX II Amp Logger Clicks are the cumulative total of distance signals from the LINDA wheel up to the measurement The LINDA
229. s Descriptive Order Geometric Exposure Time Calculation Check and ASCII and others contain graphs Drawpath Field vs Time Field vs Distance 3D Map and Contour Data pages can be added and removed from a dataset via the Workspace window see the topics Adding Data Pages and Removing Data Pages in this document You can add remove the following data pages Statistics Descriptive Order Geometric Exposure Time Calculation Check ASCII Field vs Time Field vs Distance 3D Map Contour Map and Drawpath The picture below shows a single dataset Dataset 1 with it s corresponding data pages Dau ee Stir ool lieve ar ren aa S Qh Record Type 5 Sample Data 3 8 Datacet t bj Oss 2 b nup Poet Ste a Magee Fisd Im Source gt Sete FE Data Pages for Dataset 1 As stated earlier data pages contain the statistical analysis graphs and maps of the dataset The various data pages displayed will depend on the type of dataset selected Aside from the ASCII view data page and statistical data pages all other possible data pages are created automatically by the program for each dataset The ASCII view and 167 statistical data pages can be created and deleted through the workspace tree control at any time while viewing a dataset in EMCALC 2000 By default all statistical pages are created for allnew databooks However this option can be modified through the global options g
230. s LCD while downloading e During the download a dialog box is displayed that shows the current packet currently being downloaded the total number of packets and the number of bytes that has been downloaded e Once the download is complete a dialog box will prompt you for the date time and description of the data Download Information e The date and time should be correct so you only need to enter a description If the date and time are not correct then double click on the field to bring up a dialog box that lets you modify both entities Start Time 08 09 1999 M e Click DONE to commit the data e You will then be presented with a databook window that contains views of each dataset in the databook 188 The Raw LTE file When you download data from an EMDEX LITE there are two files that get saved to your hard drive one is the EMCALC 2000 databook file MBK extension and the other is an EMDEXLITE data file LTE extension However any changes and editing done in EMCALC 2000 will not be reflected in the LTE file The LTE file is saved only for use with EMCALC 95 or as a backup in case the MBK file gets destroyed or corrupted The Save As dialog box checks for the prior existence ofthe LTE file and will ask if you wish to replace the LTE file or both the MBK and LTE files if both exist accordingly EMCALC 2000 updates the LTE file with the Start Time that was entered on the Download Information dialog bo
231. s and is usually used when calibrating the instrument X value this is the magnetic field intensity detected by the X axis coil Y value this is the magnetic field intensity detected by the Y axis coil Z value this is the magnetic field intensity detected by the Z axis coil Resultant this is the resultant magnetic field which is obtained by squaring each of the X Y and Z values adding them then taking the square root e f monitoring an EMDEX II the screen will look similar to the picture below 100 The columns for the EMDEX LITE RTM are described as follows X value this is the magnetic field intensity detected by the X axis coil Y value this is the magnetic field intensity detected by the Y axis coil 194 Z value this is the magnetic field intensity detected by the Z axis coil Resultant Calculated this is the resultant magnetic field which is obtained by squaring each of the X Y and Z values adding them then taking the square root This value is not calculated or stored by the LITE meter It is calculated by the EMCALC 2000 software e NOTE No matter what the meter is programmed to display the RTM will convert the data into the units specified in the Options dialog box NOTE The electric units for the EMDEX II are also specified indirectly by the External Probe setting in Options However you will receive the following warning every time you try to start real time monitor if your
232. s of turning designation methods Compass mode and Relative mode the modification method of directional angles is the same for both types of datasets Top of Screen 0 315 45 270 90 225 135 180 Bottom of Screen Update all subsequent vertices you would normally leave this box checked if you collected the data using the Relative Mode with your EMDEX II meter If you collected the data in Compass Mode or if you created this file using the Convert to LINDA feature then you would normally leave this box unchecked By checking this box the program will change the angle of all subsequent records with new a value that is relative to the angle you entered By unchecking this box the angle for all subsequent records is left unchanged After entering a new angle click the OK button The Drawpath will be redrawn with the new angle inserted at the record number that you selected Hopefully this will have corrected the Drawpath picture so it accurately reflects the path you traversed when you collected your LINDA data If not you can click on the Undo button on the toolbar then re edit the data point Or you may need to edit other data points 241 3D Map 242 What is a3D Map The 3D Map data page displays a representation of the magnetic field within an area measured by the LINDA Measurement Wheel The strength of the field is represented by the vertical axis ofthe graph The picture below shows a
233. scale The resolution of the scale is different for each meter and is shown in the table below This table lists the resolution of each scale for every meter supported by EMCALC 2000 The B Scale is the magnetic field scale in milliGauss and the E Scale is the electric field scale in nanoAmps To determine the resolution for a specific meter on a given scale match the unit type to the scale Meter Name Unit B Scale B Scale B Scale E Scale E Scale E Scale Type 1 mG 2 mG 3 mG 1 nA 2 nA 3 nA EMDEX II 0 0 0125 0 2 3 2 0 1 1 6 25 6 Standard EMDEX II 1 0 1 0 1 0 1 0 3 0 3 0 3 ver 1 x EMDEX II 7 0 5 8 0 128 0 0 1 1 6 25 6 High Field EMDEX 20 0 05 0 4 N A N A N A N A LITE Low Field High Res EMDEX 21 0 1 0 8 N A N A N A N A 307 LITE Low Field Low Res EMDEX 22 5 0 40 0 N A N A N A N A LITE High Field High Res EMDEX 23 10 0 80 0 N A N A N A N A LITE High Field Low Res Computing Field Values Each data record in an EMCALC file contains two pieces of information the scale that the meter was on and the A D value for the measurement EMCALC 2000 can reconstruct the field value by using the following formula Field A D Resolution where Resolution is obtained from the table above For example lets say the a Standard EMDEX II unit type 0 measured the field on scale 1 0 0125 mG and the A D value computed by the meter was 102 These two numbers scale 1 A D 102 are stored to
234. se the EMDEX Il in its survey mode to locate a site with low fields Be aware however that the field strength at a given location may change significantly with time Connecting the Amp Logger to the EMDEX II The Amp Logger is designed to connect a Fluke 80i 600 AC Current Probe to the EMDEX Il We strongly recommend that this particular probe be used with the Amp Logger e Insert the color coded plugs on the Fluke into the corresponding jacks on the Amp Logger as shown in the figure below If you connect the probe to the current conductor before plugging it into the Amp Logger it is possible to build up a significant 70 V charge between the banana plugs on the probe Always plug the probe into the Amp Logger before clamping the probe around the conductor Amp Logger Fluke Current Probe e Insert the subminiature phone plug on the Amp Logger into the AUX jack on the EMDEX II e Place the jaws of the probe around the current conductor as shown in the figure below 383 Current Conductor Fluke Current Probe Because of the design of the current probe the size and position of the conductor within the probe jaws does not affect its accuracy 384 Setting the EMDEX Il Storage Options The EMDEX II must now be set up to collect data from the AUX jack This is done using the STORAGE option on the meter e Using the lt gt and lt gt buttons on the EMDEX Il toggle through the menu until STORAGE appears o
235. sensor was designed for performing electric field measurements with the EMDEX II electric and magnetic field meter The E Probe consists of two aluminum plates calibrated to produce an induced current that the EMDEX II meter can read and convert to determine an equivalent electric field measurement value The E PROBE has a range of 0 010 to 13 kV m 10 to 13 000 Volts per meter with an accuracy of about 5 and resolution of about 1 V m this conforms to the IEEE Standard Accompanying the E Probe sensor is an insulated expandable fiberglass pole and an instruction booklet For details on using the E Probe see Appendix H in this document 20 Backward Compatibility For backward compatibility EMCALC 2000 will read in the latest versions of EMDEX II and EMDEX LITE files You can open these files directly with the new program without having to import or convert them first Since the MDX and LTE files are preserved you can still open both these files in the older versions of EMCALC 95 and 2 x EMCALC 2000 will work with your existing EMDEX Il and EMDEX LITE meters However your EMDEX II meter must have a version 2 0 or later operating program loaded into its memory If your meter has an older program ver 1 x then you can temporarily load a newer program into your meter using the EMCALC 2000 software Or you can have it permanently burned in by sending it back to Enertech Consultants for an upgrade Getting Started Probably
236. splays the magnetic field over an area and delineates the field levels with contour equi field lines This is similar to a surveyors elevation contour map To create a Contour Map e Right click on the dataset icon named Point Source in the Workspace Tree e Choose Create Contour Map from the context menu e This will add a new page to the databook window called Contour Map and it will be activated This page contains a 2D contour chart that looks like the picture below EMCALC 2000 Port Sowce rie Ed Yew Comme Lock Wines ido RRA RR aiixi Dasw eeati mipnaoal sJ iuwwtnte ds Botas t EMDEN File a D Dataset An elector tan arci a neki ganer adon cod Recad pps 6 Sanpla C Dtm stonce fi Distance ft E Wy Projects PMC AL COate Port Source r k 35 Mag Coetser May Paid vi feinen J f e You can look at the various components of the magnetic field X Y Z or Resultant by clicking on the corresponding component button on the toolbar g on the X Component iex Y Component ur Z Component E and e Try clickin Resultant buttons respectively to see the different components of the magnetic field 56 57 Change the Contours to Zones Presently the contour chart delineates the contour levels as lines Let s say that you wanted to view the contour chart as zones To do this e Right click on the contour chart itself to bring up the 3D Chart Control Properti
237. ssee em eem eene nre 339 Using the EMDEX II for Data Collection mmm 338 tsino the EMDEX HMetET enntre nenn oe 316 Using the EMDEX LITE corri at Meer do eene orte eesi daai 354 Using the E Probe cit bero eodd du e de ats 399 Using Me LINDA Wheel retire nee 364 Using the Linesplitter ACCesSOry eite tete dini ene tela pee e eta nan 393 V Viewthe Chart tico dai dtd ite d d eti d et aia 78 View the Datasets i retten temi aa ista ges Si 87 View the Descriptive Statistics nito Eee b e LER RISE niert 38 View the DrawPath Page teet eicit itte ige Hilger el ei nein 53 View the Events Page s ertet tu e ete Ee Ere ER LEE aoc eee abd Leto deidad dabas 37 View the Exposure Time Statistics iet Rated ASSET RR YR RM ASLE 41 View the Field versus Time Chartissa eaei aranea e aa eaa a aa ES AEREO 42 View the Field vs Time Group Chart 4 1 beso tte ter a aaa 91 View the Geometri6 StatistlCs 2 renidet its rto ia te habc qaa tex cae a diee anaana alaa 40 View the Order Statistics 2 te d Hei etc tta iret actes tb bete tia pete tn did 39 W Welcome A A ep A eae A AA eee ae 9 What are Quick Tours ie reve RO a 31 Whats a 3D Map aaa eat a Rn ee era re 248 What is a Contour Map 0 2 22 cceceecccec cece eee ee cece ea aces cece eee a i d araia ek eedd iad aie akie neea 255 What is a Field vs Distance Chart ccccccecceeeeceeceeeceeeeeeeeeaaeaeeeeeeeeeseccacaeeeeeeesesecciaeeeeeeeseteeea 264 What is a Field
238. t When uploading the E Probe program into your EMDEX II you need to select 50 Hz E Probe or 60 Hz E Probe from the External Probe dropdown list box This will cause EMCALC 2000 to automatically upload the correct operating program into the EMDEX II 396 Performing Electric Field Measurements Insert the fiberglass pole into the mounting cube below the E Probe s lower plate and screw inward until snug Once the EMDEX II meter has been properly set up set the meter to record both electric and magnetic fields and start data collection If you wish you may also want to set the LCD display to show electric field values Be sure that the EMDEX II meter has begun to record field data then slide the meter into the E Probe with the display facing out towards you The cutout hole in the plastic guide should line up with the AUX jack on the side of the EMDEX II meter Plug the connector from the E Probe into the AUX jack of the EMDEX meter The EMDEX II will now be reading and recording electric field values To properly conduct electric field measurements you should hold the meter and electric field sensor out at the end of the fiberglass pole away from your body and other objects which might perturb the electric field Measurements should be performed in accordance with IEEE Standard 644 1994 entitled IEEE Standard Procedures for Measurement of Power Frequency Electric and Magnetic Fields from AC Power Lines The electric field w
239. t Ang The compass is mounted on the LINDA so the Direction of Travel Arrow points forward The Compass Needle rotates on a small pin and aligns itself so the red end of the needle points toward the Earth s North magnetic pole When the Bearing Adjustment Ring is turned so the Alignment Arrow is pointing in the same direction as the Compass Needle a direction bearing can be read by noting the number under the Bearing Indicator This number can be used to indicate the direction traveled during a measurement session When obtaining a reading from the compass it is important to e Keep the compass level e Keep metal away from the compass Coins metal buckles pens metal poles cables and any other metal objects can significantly affect the compass e Keep the compass away from electrical currents such as appliances power lines power panels etc 374 To take a reading Turn the Bearing Adjustment Ring on the compass so the Alignment Arrow points in the same direction as the Compass Needle as shown in the figure below Direction of Travel Arrow Bearing Indicator Allgnment Arrow Beari Adjustment ng Compass Needle 8 RI Read the direction bearing from the number under the Bearing Indicator Note that the numbers on the Bearing Adjustment Ring are numbered in intervals of 20 and that each small line represents 2 In the figure below the direction bearing would be 148 AA TE IT AI TELTPIET Adel T 120 150
240. taining the broadband and harmonic magnetic field resultant and the broadband and harmonic E field data This record type is used when the EMDEX II STORAGE option is set to rsIt amp E magnetic field resultant and E field and the BANDWDTH option is set to bb amp har broadband and harmonic Byte Description 0 1 A D Broadband Resultant in digital units 2 3 A D Harmonic Resultant in digital units 4 5 A D Broadband E channel in digital units 6 7 A D Harmonic E channel in digital units 8 9 Key byte Bit 0 Event mark O no 1 yes 1 2 Broadband resultant scale factor 3 4 Harmonic resultant scale factor 5 6 Broadband E channel scale factor 7 Not used 8 9 Harmonic E channel scale factor 10 Broadband resultant bad data flag 11 Harmonic resultant bad data flag 12 Broadband E channel bad data flag 13 Harmonic E channel bad data flag 14 15 Not used 416 417 Data Record Type 5 Record Type 5 is a 9 byte data record containing the broadband magnetic field x y z and resultant This record type is used when the EMDEX II STORAGE option is set to rsit xyz magnetic field resultant and x y and z components and the BANDWDTH option is set to broadbnd broadband only This is also the record type produced by the EMDEX LITE Byte 0 1 2 3 4 5 418 Description A D Broadband X axis in digital units A D Broadband Y axis in digital units A D Broadband Z axis in digital units A D Broadband
241. tery Life 77 DC Offset 1317 EMDEX LITE Parameters Display Rate Resultant 4 seconds C Custom Magnetic Field Units mili auss bA The options for Display are Resultant XYZ Axes and No Display Except for Resultant which has only one option for Rate of 4 sec the Rate options for XYZ Axes and No Display are preset at 4 sec 10 sec 30 sec 1 min 2 min 5 min 10 min 20 min You can type in or select a custom operating program file to upload You can select the magnetic units with which you wish to display the readings on the meter Any selections you make in this dialog box are only temporary and will not be remembered To permanently change the default settings for this dialog box you must set them in the Communications tab of the Options dialog box Once you have confirmed your selections click the OK button and EMCALC 2000 will begin uploading the operating program file that matches the parameters you chose After the upload has been successfully completed a dialog box is displayed with the name of the LOB file that was uploaded indicating that EMCALC 2000 Successfully uploaded EMDEX LITE meter parameters Note If you select a custom program to upload EMCALC 2000 will display the following warning message before starting to upload Click OK to start uploading the selected custom program Click Cancel to select a different program to upload 191 EMCALC 2000 e Th
242. the OK button e The top portion of the 3D Map that was previously yellow will now be drawn in red e Click the OK button on the 3D Chart Control Properties dialog box e Your screen should now look like the picture below 110 Ein La Yew Damien Lock rem bile ataizi josu Se atif ino ee ama ea Map under 5OOCV E 2308 Lire 111 Change Floor and Ceiling The 3D Maps by default show a set of contour lines below the 3D surface area Let s say that you want to hide the lines below the surface portion of the chart and have them drawn above the surface where they can be seen a little better Click the right mouse button on the 3D Map chart to display the 3D Chart Control Properties dialog box e Click on the PlotCube tab then click on the Ceiling sub tab e Check the IsContoured check box You will notice that a set of contour lines is drawn above the 3D surface This area above the surface is called the ceiling e Next click on the Floor sub tab e Uncheck the IsContoured check box You will notice that a set of contour lines that were drawn below the 3D surface are now hidden The area below the surface is called the floor e Click the OK button on the 3D Chart Control Properties dialog box e Your screen should now look like the picture below EMCALC 2000 Cops of 500 kY we Mop MO F Eee Yew Comunesin cok Windom nlp aiziz Deu e amp tsyino ue Mx4H wre eet eae du E watanet
243. the Pattern dropdown list and change the Width to 2 The chart will be immediately updated with the new solid line e Click on Style4 in the tree control Choose Solid from the Pattern dropdown list The chart will be immediately updated with the new solid line Change the color of the Broadband X Component line e Click on Style2 in the tree control e Click on the dropdown list in the Name field and choose the color Violet e The line style on the chart and in the legend will be updated immediately e Click on the OK button Your screen should look like the picture below Qe re La yew Commancation Leck iren Dio algixi jose e ar ana ih nud pm XR SEEN HP LaserJet 5p Printer g 3 k 1003 AM 1006 4M aging 100 Change the Y axis Next you will change the maximum value on the Y axis and modify the grid lines e Right click on the chart to display the 2D Chart Properties dialog box e Click on the Scale sub tab of the Axes tab e Select the Y axis on the tree control The dialog box should look like the picture below 2D Chart Control Properties Ed Axes ChartStyles Titles Legend Chart rea Plot rea ChartLabels Akas General Annotation Scale Title m x sa Data Max 5 075 Iv IsDefault Data Min ot IV IsDefault Max Je IV IsDetault Min fo Iv IsDefault Origin ot IV IsDefault Cancel Apply Help e Change the Max field from 6 to 5 5 then
244. the bat tery voltage falls below 6 5 volts the EMDEX II meter automatically stops collecting data and goes into a low power mode Transfer all data to your computer at this time The EMDEX II meter will operate for between 12 and 120 hours at 6 5 volts provided an alkaline or lithium battery is being used giving you enough time to transfer the data The EMDEX II has never been tested for use with 120 volt AC to 9 volt DC converters The EMDEX ll is a sensitive instrument and use of converters that supply over voltages or under voltages could result in data errors and damage the electronic circuitry For applications where converters are needed test the EMDEX II thoroughly with the converter before collecting data Power Saving Features The EMDEX II incorporates certain features designed to maximize battery life e Ifthe meter is left idle for 3 minutes the LCD display is shut off and the meter goes into a low power sleep mode The LCD can be turned back on by pressing the EVENT button e During measurements the EMDEX II enters the sleep mode while waiting to take the next measurement e fthe battery voltage reaches a critical level the meter stops taking measurements and goes into a low power STANDBY mode The buttons are disabled and the only operation the meter responds to is a data transfer to the PC 338 EMDEX Il Hardware Specifications Overall Dimensions6 6 x 2 6 x 1 5 16 8 x 6 6 x 3 8 cm Weight without battery 10
245. the best place for experienced EMCALC users to begin is by reading the Quick Tours section of this document and then following the instructions found there Contacting Technical Support When calling Enertech Consultants by phone use 408 866 7266 and ask for EMCALC 2000 Technical Support You can also send questions via e mail to support enertech net Use EMCALC 2000 as the subject Note Technical support is provided for the target operating systems only These include Windows 95 Windows 98 and Windows NT 4 0 Technical support is not guaranteed for other operating systems that are running Windows emulators Limited support is provided for network related problems This software is primarily a single client package and was not designed nor intended to run from an application or file server Issues related to servers application file or print might not be resolved through technical support You should contact your system administrator to resolve network issues 21 Abbreviations The following table lists the abbreviations used throughout the manual Abbreviation A or Amp mA pA nA byte Kb Hz G mG T mT uT V kV V m 22 Name ampere milliampere microampere nanoampere byte kilobyte feet meter hertz gauss milliGauss tesla milliTesla microTesla seconds milliseconds volt kilovolt volt meter Quantity Electric Current 1 A 1000 mA 1 mA 1000 pA 1 pA 1000 nA
246. the file association are listed below this assumes that you used the default directory for installation HKEY CLASSES ROOTXmbk EMCALC Document HKEY_CLASSES_ROOT EMCALC Document EMCALC Document EditFlags hex 00 00 00 00 HKEY_CLASSES_ROOT EMCALC Document Defaulticon C Progra 1 Enerte 1 EMCALC 1 Emcalc exe 1 HKEY_CLASSES_ROOTIEMCALC Documentishell 24 HKEY_CLASSES_ROOTIEMCALC Documentishelllopen HKEY CLASSES _ROOTIEMCALC Documentishellopenicommand C Progra 1 Enerte 1 EMCALC 1 Emcalc exe V 961V HKEY_CLASSES_ROOT EMCALC Document shell open ddeexec open 1 vr 25 Registering the Software The EMCALC 2000 program contains a software protection mechanism that forces the software to operate in demo mode until it has been registered You must go through a registration process before the software becomes fully functional While running in demo mode the software will not save changes made to files or allow you communicate with your EMDEX meter To register the software e Choose Yes when the Registration Wizard asks you if you want to register e Follow the instructions on each dialog box then click the Next button e Onthe User Information Confirmation dialog box click on the Export button This will create a text file named Register txt located in the installation directory It will contain all the user information that you entered and it will contain the Customer C
247. ther measurement unless you power the unit off by sliding the Power switch to the OFF position Be sure you transfer the data to a PC otherwise the data will be lost Note As a precaution EMCALC disregards the last measurement taken by the LITE during a data transfer This helps insure the integrity of all data frames in the file 352 353 EMDEX LITE Typical Battery Life and Data Collection Times Sample RateMaximum Data Collection SessionTypical Alkaline Battery LifeTypical Lithium Battery Life4 seconds24 3 hrs6 days13 days10 seconds2 53 days61330 seconds7 58 days27601 minute15 2 days30702 minutes30 3 days601405 minutes75 8 days12027010 minutes152 days15033020 minutes303 days150350 354 EMDEX LITE Specifications Dimensio 1 0 x 2 4 x 4 7 2 5x 6 x 12 cm ns Weight Without Battery 4 5 oz 130 grams With Battery 6 0 oz 170 grams Operating 32 140 F 0 60 C Temperat ure Range Controls OFF ON Power Switch IDLE DATA COLLECT Switch for starting and stopping data collection Serial Port for communication Display 4 Character Numeric LCD with limited alphabetical characters Crest Crest Factor of 1 5 creates an additional error of Factor 5 Error Computer Tattletale Lite 8 bit CPU Data 128 Kb RAM Memory Frequenc 40 1000 Hz Flat Response 30 y Response Magnetic Three orthogonal coils Sensors Magnetic Stand High Field LITE Field ard LITE Range 0 00 70G 0 0 700 mG Typical Stand High Field LITE
248. this document 17 LINDA Measurement Wheel The Linear Data Acquisition LINDA Measurement Wheel described in the LINDA User Manual is an optional accessory to the EMDEX II meter which enables the EMDEX II to make magnetic field and location measurements simultaneously In order for the EMDEX II to be used with the LINDA wheel the meter must be loaded with the LINDA Operating Program The data is transferred from the EMDEX II into a LINDA dataset which can be analyzed using EMCALC 2000 For details on using the LINDA Wheel see Appendix F in this document 18 Amp Logger The EMDEX II Amp Logger allows the EMDEX II to be used as a recording clamp on ammeter while simultaneously recording magnetic fields It is designed as an interface between the EMDEX II and a Fluke 80i 600 AC Current Probe The probe clamps around a current conductor which is plugged into the Amp Logger The Amp Logger has a sub miniature phone plug which connects to the EMDEX II through the AUX jack The current in the conductor induces a current in the probe which is adjusted by the Amp Logger before going to the EMDEX Il EMCALC translates the AUX jack current back to the magnitude of the conductor current This allows the EMDEX II to be used as a recording clamp on ammeter Data taken with the Amp Logger is supported by EMCALC 2000 For details on using the Amp Logger see Appendix G in this document 19 E Probe The E Probe electric field
249. toggles the Event markers on and off toggles the Record markers on and off allows you to modify the path See the topic Modifying the Path in this section for details on how to do this 2 will cause the record indicator to stop at every record instead of just the corners when moving through the path with the arrow keys You must be in the Modify Path mode to do this allows you to undo a change made in the Modify Path mode 239 Modifying the Path Sometimes when collecting data with the LINDA wheel a user will forget to enter a turn Rt 90 Lt 90 etc into the meter This error can be seen on the Drawpath data page when the software reconstructs the path that it thinks the user traversed When an obvious error like a missing turn it noticed it can be easily fixed using the Modify Angle feature on the Drawpath page Note Quick Tour 6 also walks you through the process of modifying the path for a LINDA file To modify the path for a given dataset e First activate the Drawpath page by clicking on its tab e Select the Modify Path button Fm the toolbar e You will notice a red circle drawn at the starting position of the path marking your current location e Move this circle by selecting the up arrow move forward on your keyboard By default the circle will skip to the next vertex or change in angle in the path By default the position marker will only traverse records where a change in direction occurs If y
250. tour level to the ContourLevels list Select a level in the tree control and click on the Remove button to remove it from the ContourLevels list The contour chart will be updated immediately The Save button lets you save the ContourLevels to an ASCII text file that you can manually edit The Load button will read the ContourLevels from an ASCII text file that you created This is useful if you have certain set of special contour levels that you use from time to time You can load them rather than entering them manually Click on the OK button when you are finished editing the contour levels 256 Note this method is also used to change the contour levels bands on the 3D Map 257 Field vs Distance 258 What is a Field vs Distance chart A Field vs Distance chart plots a field quantity such as magnetic field resultant against distance The field intensity i e milligauss is plotted on the vertical Y axis and distance i e feet is plotted on the horizontal X axis Only datasets taken with EMDEX Il meters using the LINDA Operating Program or EMDEX II files converted to the LINDA file format can be used to produce Field vs Distance charts The picture below shows an example of a Field vs Distance chart 2000 S00 KV Line Latesal Poeofite O ja Ea Yao Comnzicsion Lech Window tiep m METE Oggi selot tloa fere is le ee ea Labarai Prot of 5004 230 Ev K 1 Magnets Fiad in PTT 259 The Fi
251. tric sensor used on the EMDEX II see the EMDEX II User Manual It is the ratio of the current produced by the sensor and the quantity the sensor is measuring For an E field sensor this characteristic is measured in microAmperes per Volts per meter uA V m For the EMDEX Il Amp 201 Logger this quantity is in microAmperes sensor current per Amperes of measured current uA A The user is only allowed to input data into this field if the External Probe type selected is Other for all other types this field is automatically filled by the program and cannot be modified Electrical Units can be set to Volts Meter V m kilovolts per meter kV m or Amperes Amps The ampere unit is used specifically with a dataset collected using the EMDEX Il Amp Logger Like the Calibration Constant the user is only allowed to input data into this field if the External Probe type is set to Other otherwise this field is automatically filled by the program and cannot be modified Distance Units can be set to feet or meters This value is used to determine the unit of distance in the Drawpath map and the Field vs Distance chart Wheel Calibration Constant specifies the distance calibration of the measurement wheel used to gather the dataset The LINDA Measurement Wheel has a calibration constant of 1 foot Maximum Error in Fundamental Calculation specifies the maximum allowed measurement error in the calculation of the fundamental Include Sat
252. ts in the dataset The exposure time integral is calculated by first sorting the measurements into bins and then determining the amount of time spent in each bin For an explanation of how to set the bin definitions see the Bin Definitions topic in the Global Options section of this document 223 For each bin the following information is displayed Bins describe the range of values falling within the bin Measurements must be equal to or greater then the first number and less then the second For example suppose the bin range was displayed as 1 5 3 0 mG Measurements would have to be 1 5 mG or larger but smaller than 3 0 mG In other words 1 5 would fit but 3 0 would be too large Total Records is the number of measurements falling within the bin range Percent of Time shows the percentage of the total measurement time that individual measures fell within the bin range Exposure shows the value of exposure time integral for each bin Percent of Total is the percentage of the value of Exposure to the total exposure Total exposure is displayed at the bottom of the exposure Column Cumulative Percent is the running total of the percent of total exposure column 224 Calculation Check Data Page The contribution of the fundamental frequency 50 or 60 Hz to EMF exposure is calculated from the measured broadband and harmonic field strengths There are occasions when the calculated fundamental magnitude reported by EMCALC maybe
253. ult chart e Your screen will look similar to the picture below 282 EMCALC 2000 Rinttled Databook Kb Fie Ese yev Garmascation Lock Wird Hep lei 0390 teh sta oO Ile rel ES E i 8 16 f 2000 Dertsutt 20 Cher Tengiate 1 WI Fun end Restant Fura arta x Component h i I 5 kys 2 Ex d lied i t 4 3 RA men AM Lo Ae Fart O en f 02 1026 AM 1028 AM te Tra 1021 90 AM Maie cantas then saver la Chart ng De Seve button onthe Cortes tae Ever Senator D One Genetic A Dip Tuve Cas Deck Fit m Tune Resch il e You can customize most of the attributes on this chart using the 2D Chart Control Properties dialog box e When you have finished your customizations go back to the Control tab on the 2D Chart Control Properties dialog box e On the General sub tab click on the Save button to display the standard Windows Save As dialog box e Again select the file named Default2Dchart OC2 file and click on the Save button e Answer Yes to the question about overwriting the file e This will overwrite the old default chart with the new customizations that you set up e Click on the OK button e To see your new changes applied to the current chart choose View Reconstruct Chart from the main menu and answer Yes to the question e The attributes from the default 2D chart will be applied to the data for the current dataset e You can save your new databook if you w
254. ults straight from the measurement array with no average 219 220 Geometric Statistics Data Page Geometric statistics data page displays the geometric mean and the geometric standard deviation The geometric mean and standard deviation are the mean and standard deviation of the base 10 logarithms of the measurements in the dataset fie E Pecs Enca COO MIR T ord Type 5 Sampie Data mak Descnpden Workng n afe st computer Date Namter 1 Blan Time Oral 992 08 37 58 AM Biop Time OcyD2 1 997 03 59 45 PM Numaer of Records 8836 Y EL BE 1 H 2 i o I i d Exposure data are often approximated as being distributed either normally or log normally Geometric statistics are statistical quantities dealing with the log normal distribution The Geometric Mean and Geometric Standard Deviation Xorg e and 5 respectively are defined as N log Xa e 2 gt log Xi Na i and 1 log se log se 1 log Xi log Xaw e J DA i Xos s Mz ls M Il UN 221 where the measured values are A PSA ee kig N Note that Xare has the same units as the X whereas 52 being related to the ratio of Xi and Ka s has no units The geometric mean and standard deviation are the antilogarithms of the mean and standard deviation of the log transformed data Consequently values corresponding to Xavg g 1 standard deviation from the geometric mean are
255. ur keyboard You will be presented with the Modify Angle dialog box Modify Angle x Angle m V Update all subsequent vertices Cancel e Angles correspond to the diagram shown below Enter 45 in the New Angle field North Q East 90 South 180 e Check the Update All Subsequent Vertices checkbox and click on the OK button e The Drawpath will be redrawn with the new angle inserted at record number 75 Your screen should look like the picture below 123 124 Correct the Angle Unfortunately 45 was the incorrect angle It should have been 90 e Click on the Undo button on the toolbar or select Edit Undo from the main menu e The path will be redrawn and should look like it did prior to modifying the angle e Double click anywhere on the Drawpath or press Alt A gt on your keyboard You will be presented with the Modify Angle dialog box again e Enter 90 in the New Angle field e Check the Update All Subsequent Vertices checkbox and click on the OK button e The path will be redrawn and should now look like the following picture Kb Ele Ed ere Cormier rocks linen bio ali osa gt e Stir ima ll ree Ascot 7 Dutance 2330 Ange 300 3360 Y 280 us ONE OV D b 125 Save the Changes and Exit Since the databook was modified when you modified the Drawpath the program will ask you if you want to save the file before closing it To preserve the original file you wi
256. urated Data determines whether EMCALC will use saturated data values in its analysis A saturated value is a measurement that was too large for the scale of the meter Add Half Bin Width determines whether EMCALC will add half bin width to all data values For a detailed description of what a Half Bin Width is see Appendix C Field Value Precision controls the number of digits displayed after the decimal point on the statistics and ASCII pages Choose between 1 2 3 and 4 decimal digit precision The default is 2 decimal digit precision 202 Bin Definitions Tab This tab is used to set minimum maximum and total number of bins to be used in the Exposure Time data page Exposure time integrals require the measurements in a given dataset to be sorted into bins A bin is a range of values for the electric or magnetic field and is used to determine the number of times a measurement falls within that range Options x General Units Calibration Bin Definitions Charts Communication Type Linear ordinary v Magnetic Bins 0 Minimum Bin E mG Maximum Bin 100 m Number of Bins 50 mG Minimum Bin 0 Amps Maximum Bin 100 Amps Number of Bins 50 Amps Binning can use either Linear ordinary values of the measurements or their Logarithmic base 10 transforms The magnetic and electric field bins can be separately defined Minimum Bin specifies the lowest measurement
257. value to be binned Maximum Bin specifies the highest measurement value to be binned Number of Bins specifies the number of bins to use 203 If Binning is Linear the width of each bin then becomes Bwidth Bmax Bmin Bnum If Binning is Logarithmic the bins are calculated as follows fBinMinDisplay log10 MinBin fBinMaxDisplay log10 MaxBin Calculate the Bin Increment ie the difference between first bin and second bin fBinIncrement fBinMaxDisplay fBinMinDisplay TotalBins The first bin is fFirstBin 10 fBinMinDisplay x 10 nBinNumber 1 x fBinIncrement The second and subsequent bins are fBin 10 fBinMinDisplay 10 nBinNumber 4 fBinIncrement 204 Charts Tab This tab is used to set chart and Drawpath attributes You can check whether to show event markers in both the charts and the Drawpath data pages You can select whether to scale the X and Y axes equally in the Drawpath data page and adjust the map origin Titles are used for Drawpath printouts and the chart displays Setting the Use True Type Fonts and the Select Max Rows Cols affects only the 3 D Map and Contour Map data pages Options x General Units Calibration Bin Definitions Charts Communication VW Scale X amp Y Axes Equally r Drigin Coordinates Titles amp 0 0 v Header C Relative Values M Footer C User Defined AIR Format gt 0 2 n Bitmap Ms O
258. verything is ready click the OK button Canceling at this point will return you to EMCALC 2000 without trying to communicate with the meter e EMCALC 2000 will attempt to open the port If the port is unavailable and cannot be opened for some reason you will be prompted with the following dialog box allowing you to retry after you have corrected the cause of the communications failure EMCALC 2000 x x Could not communicate with the EMDEX The problem can be one of the following The EMDEX is not tumed on The EMDEX cable is not plugged in properly The COM port specified in the setup is incorrect Please check these conditions before proceeding Cancel e After you click OK EMCALC 2000 will establish communication with the meter and run a diagnostics program for the EMDEX LITE meter The diagnostics determine 190 whether the Unit Type is a Low Field or a High Field LITE the remaining battery life and the DC offset value which are displayed in the Set Parameters dialog box NOTE The Cancel button in the Progress dialog box is disabled because the process cannot really be interrupted You would have to wait for diagnostics and uploading of parameters to complete before being able to abort the process You can cancel from the Set Parameters dialog box but a warning is displayed that the EMDEX LITE meter will be left uninitialized and unusable before allowing you to cancel Unit Type Low Field LITE Bat
259. vnt 1 appears on the meters LCD panel e Also notice that a 1 is displayed in the Event column on the Real Time Monitor window A 1 in this column indicates that an event mark was placed on that data record A 0 indicates no event mark on the record e Wait several seconds then mark another event by pressing the Event button again e You will notice that the text evnt 2 appears on the meters LCD panel and again the number 1 is displayed in the Event column on the Real Time Monitor window indicating an event was recorded in the data 70 Stop Data Collection Stop the meter from collecting data Simultaneously press and hold both the and buttons on the EMDEX II front panel While still holding the and buttons down press the Event button until the text stop 1 appears on the EMDEX II LCD panel You have just completed collecting your first dataset with your EMDEX II meter The word STOP should be displayed in the last row of the RTM window 71 Stop Real Time Monitoring Even though you stopped data collection with the EMDEX II the RTM window is still monitoring the COM port Before you can download data using that COM port you must stop the RTM To stop the RTM e Click on the Toggle Real Time Monitor button on the toolbar You can also choose Stop Real Time Monitor from the Communication menu e The RTM window will disappear indicating that monitoring has sto
260. will be presented with a screen similar to the one below e Displayed below the Data Sheet Header are the Exposure Time statistics The Exposure is divided into bins defined by the user in the Properties dialog box For each bin a row of data is displayed that contains the bin range number of records in the bin percent of time exposed to fields in the bin range exposure for the bin in milligauss hours the percent of the total exposure that was contributed by fields in the bin and the cumulative percent of the exposure that was contributed by fields in the bin EMCALC 2000 Huik Tow 1 pa La yew Damen Teck winde Dio algixi Dag v eat imina le E tait pometona File Ey Project EMCAL C DMMQUEK Tour T mak Desciptien Data collected while walking from Campbell Inn v Enertech s office ie dond C ampbai Dateeet Member 1 Btart Time Jum 999 12 28 07 PM Biop Time JuiD1 1 929 1240 52 PM Numer of records 511 Sampie Rate 1 5 seconds Bin Type Linear Tatal Biss 5 555575 40 View the Field vs Time Chart To view the Field vs Time chart for the dataset e Click on the tab named Field vs Time at the bottom of the screen e You will be presented with a screen similar to the one below O Ele Est Yom Communicaion Tools window He 181 Osa teate oa jie E ha feme lt ps AA E EMDEX Files Bg e Quick Tour 1 a wak Data collected while waking from Campbell Inn I Downtown
261. x EMCALC 2000 can open LTE files directly from the File Open dialog box Subsequent Downloads If you attempt to download the meter a second time the start time will not be correct because the clock counter in the meter is stopped on the fist attempt You will need to correct the start time by double clicking on the Start Time field in the Download Information dialog box 189 Change EMDEX LITE Parameters Your EMDEX LITE is initially shipped with an operating program burned into its Electronically Erasable Programmable Read Only Memory EEPROM This operating program determines the sample rate and what data is displayed on the meters LCD You may want to change one or both of these parameters and unlike the EMDEX II you cannot change these parameters via some front panel buttons The only way to change the parameters is to load a different program into the meters EEPROM To change the meter parameters e First make sure you have completed the EMDEX LITE Communications Checklist before proceeding e From the main menu choose Communication EMDEX LITE Set Meter Parameters e You will be presented with the following dialog box EMCALC 2000 x Make sure the communications cable is plugged in the LITE s data collection switch has been turned off and no other applications are accessing the same port before downloading the data Do not power off the LITE prior to downloading or all data will be lost Cancel e When e
262. y state the words Event 1 and Event 2 which is not very meaningful Let s say that you want to add a description to those event marks so that the chart has more meaning To add descriptions to the two event marks that were entered into the data e Activate the Events page by clicking on the Events tab at the bottom of the databook window e This page should list the two events that you created when you pressed the Event button on the EMDEX II meter e Click on the Description field for Event number 1 e Enter the text Enter Elevator on First Floor then hit the TAB key The focus will shift to the second event marks description field You will also notice that the column width was automatically resized to fit the text that you entered e Enter the text Exit Elevator on Seventeenth Floor then hit the TAB key Again the column width resize to fit exactly to the text that you just entered The Description column auto sizes to fit the width of the longest description e Your screen should look similar to the picture below Keep in mind that the Record Number Time and Broadband Resultant fields will contain different information than what is in the picture below EMCALC 2000 Mp Fist Data Kb Fie dh ym Commesso Jock incom Help ali xi Dag 3 RB 31T no SAS oett File E Wy PerctecteiE MAL Dista First Daty mb Label Data collected during Quick Tour 2 75 76 View the Chart Now check that the event descriptions
263. ype of data That is they must all be the same record type and have the same sample rate If one or more files are incompatible then the option for creating a group dataset will not be available 84 Open the Data File Open the file Quick Tour 3 mbk located in the Data subdirectory u 1 button on the main e Select File Open from the main menu or click on the Open toolbar e The Open File dialog box will be displayed e Select the Quick Tour 3 mbk file e Click on the Open button e The Databook window will be displayed with the last dataset Dataset 3 activated e Maximize the Databook window by clicking on the maximize button in the upper right corner of it s title bar It should like the picture below after maximizing Kb fie Et yew Comnen cok iind Lalo algizd Deu 7 SRS Pio are eles ee aes a j S UY EMDEX Fi Doms D se E pata amp Duck Tas 3 b Damet b Daacet 2 Data rcacterd Fiel art Broadband X Component Broecker Y Broadband Z Component INN 9017 26 AN Ly Prat INCA O Da Dak Tow nih GN EEE E REA Reacts TERS Bias Fe e Notice that there is a tab for each dataset located at the top of the Databook window e Also notice that the tree in the Workspace window contains one icon for each dataset in the databook Dataset 1 Dataset 2 and Dataset 3 85 View the Datasets You can view each dataset to see what the data looks like e Click

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