C O N T E N T S
Contents
1. to change the screen contrast 2 1 2 Handle control four arrowed keys Figure 1 These are multi functional switches and their actual operation or function depends on the specific menu displayed Up Down Moves the cursor up down through a menu Left Escapes from a current menu to return to the previous level and saves a selected option Right Selects an option from a menu or initiates a procedure operation Figure 1 Display panel and handle controls 2 2 THE FRONT OF THE INSTRUMENT Figure 2 A Multifunctional connector for the charger PC GPS receiver probe thermometer and alternative power sources like solar batteries or a car charging cable B Gas inlet C Gas outlet A Figure 2 The front of the B instrument Start Ecoprobe 5 3 START ECOPROBE 5 By pressing the ON OFF key on the display panel the instrument will boot up in about two seconds and display the Welcome Menu Figure 3 RS DYNAMICS ECOPROBE 5 Version 990112 TIME DATE Pressure 1009 mBarr Figure 3 Welcome Menu Press any arrow on the handle control to open the Main Menu 4 MAIN MENU Brief explanation LOCALITY 1 or 2 Measuring mode ES kkkkkkkkkkkkkkk starts measurement of the locality MAIN MENU LOCALITY MANAGEMENT Configurates a new locality already measured localities and monitoring LOCALITY 1 stations and deletes localities LOCALITY 2 LOCALITY MANAGEMENT CONTINUOUS MEASUREMENT A2. Peracetic Acetic acid mix Perchloroethene PGME a PONER Phen Phosphine in N2 PH3 PH Photocopier Toner NU Peoine 3 Pene a Binene b Piperylene isomer mix Propane Propangl m Propene Propionaldehyde Propyl acetate n N Propylene oxide Propyleneimine Pyridine RR7300 PGME PGMEA Stoddard Solvent see Mineral Spirits Styrene C8H8 Sulfur dioxide Tetrachloroethane 1 1 1 2 N Tetrachloroethane 1 1 2 2 Tetraethyllead Tetraethylorthosilicate Tetrafluoroethane 1 1 1 2 Tetrafluoromethane Tetrahydrofuran red DEE Toluene Tolylene 2 4 diisocyanate Trichloroethane 1 1 1 Trichloroethane 1 1 2 Trichloroethene a Trichlorotrifluoroethane 1 1 2 Triethylamine Trifluoroethane 1 1 2 Trimethylamine Turpentine Undecane Vinyl actetate Vin bromide Vinyl chloride in N2 NR Vinyl 2 pyrrolidinone 1 Xylene m Xylene o 7 Xylene p KE Z IZ Z Z Z IZ Z Z KE H D D D Dd D D D Dd H 4 D a gt 1 0 E D j o Zz ba D D Zz Zz ba D Z zZ Z D d Dd o S yA 0 S o o lz e alu Zz D Zz ba o D S Z Z Z Z Z Z Z Z Kb Dy D D D D D D Y D D o o o o slo a a N SIE al N Zz D 2 a S nm Figure 35 Table of measured Compounds 33 Field survey 12 THE FIELD SURVEY 12 1 General Mapping the soil contaminant cloud using a regular network is the most common application of Ecoprobe 5 For this kind of survey it is recom
3. E E E E E E EE EE E E I I D D I I I I D I I I D D D D D I o del o a callie 2 2 2 2 a 2 2 Ca IW al olan wo al wj E wo IW N M F o o sol o oja WI hj a N 2 FP olo o N TABLE OF MEASURED COMPOUNDS Hydrogen Hydrogen peroxide Hydrogen sulfide lodine Isobutane Isobutanol Isobutene Isobutyl acrylate Isoflurane boer G Solvent a DO E CN sopar M Solvent sophorone 507 soprene a a osos as sopropanol EECHER Isopropyl acetate Isopropyl ether MANOS ITA DO NO CN Jas JPA Jet uel ES MONTAG NR is AN Jet vel JP mw tes NR os oa Kerosene Mesitylene i 8 41 Methane 12 51 Methanol 10 85 Methoxyethanol 2 d 10 1 Methoxyethoxyethanol 2 i lt 10 Methyl acetate 10 27 Methyl acrylate Methylaming CHEN 597 Methyl bromide 10 54 Methyl buy ether poseo SNC SSC oa Methyl leche A a E Methyl chloride 1122 Metyicyclonexane 9 64 Methylene chloride GES Methyl ethyiketone oso os oa mas Methyihydrazine 77 Methyl isobuiy ketone ose Oc DT Methyl isocyanate et Methyl mercaptan mas PR oa a Methyl methacrylate 97 Methyl propylketone oT as Methyl 2 pyrrolidinone N e A os os o Methyl salicylate Methyistyrene a 518 Mineral spits A A o a Naphthalene JE Nitic oxide 9 26 Nirobenzene x Niroethane 70 88 Nitrogen dioxide NO2 9 75 Niromethane 11 02 Nitropropane 2 1O Nonane 972 Octane n Se Pentane poa ao ea 07 103 Peracetic acid TABLE OF MEASURED COMPOUNDS
4. Isobuthylene The instrument s responses to other compounds are different Calibration procedure however automatically calibrates the instrument for about 200 specific compounds see table of measured compounds in Figure 35 This feature is used in cases when composition of the contaminant is known and absolute results of soil gas vapour concentration are required Choose the compound which is chemically equal or very close to the contaminant and select it in the System Configuration File of the locality described later Then the output can give quantitative concentration of vapour phase For further details see Chapter 12 3 Nevertheless the operator should bear in mind that Ecoprobe 5 is neither a spectral analyzer nor a spectral selective detector Spectral characteristic of Ecoprobe 5 analytical unit is equal to the characteristics of the laboratory gas chromatograph evaluating unit if the lamp of equal energy is used This means that spectral responses to all the spectral components of Ecooprobe 5 and laboratory gas chromatograph are equal which brings very close results between the in situ total measurement and selective laboratory analysis of samples Photoionisation breakdown Generally speaking photoionisation process has its physical limit For a concentration higher than certain value the ionization process will breakdown Further increase of concentration may even lead to the decay of output The average value of photoionisation br
5. Note Item Open MONITOR will be described in Chapter MONITOR Open LOCALITY 1 SELECT LOCALITY Open LOCALITY 2 LOCALITY1 noname Open MONITOR lt new gt Standard Scarborough X Increment London Y Increment Oxford Glasgow Group Measurement Pump Speed 1 25 l mim Sampl interval 1 0s Delete Locality Reset period AUT s Preint period 4s Integr period 20s e Probe Depth 0 50m Figure 5 Locality Save Ges Val No Management Menu Temperature 1 grad Figure 6 List of existing localities PID On Off On e Select the option lt new gt System Configuration File Range STANDARD with default settings will be opened Figure 7 Default o values for different measuring parameters in the System Units ppm Configuration File represent well proven settings Evaluation Maximum suitable for a general survey Besides providing a guideline these values facilitate setting up a new InfraRed On Off locality and they should be used until the operator has Methane sufficient experience to select an optimum combination Total Petroleum for a given environment CO Units iyi e Evaluation e Enter a name of a new locality in System Configuration elei File see Chapter 5 3 System Configuration File Humidity Oxygen e If you do not want to make any other changes select the Temperature units option Save configuration at the end of the System Pressure units Configuration File or use the left arro
6. Y coordinates of the first measured station are set as X 0 Y 0 After measuring the Measurement Mode Menu Figure24 will disappear and Welcome GPS Menu Figure 21 is displayed Use the option Show data to review the measured values or Measure for measuring the next station If the receiver cannot get information from satellites for instance while measuring among tall buildings Ecoprobe 5 does not allow measurement to continue and the instrument starts beeping Press any arrowed button to stop the beep and return to the Welcome GPS menu 20 Continuous Measurement 7 CONTINUOUS MEASUREMENT Allows continuous operation without any data being logged e Select the item CONTINUOUS CONTINUOUS CONFIG MEASUREMENT in the Main Menu e Measuring mode will be opened Figure START 25 offering an option START and displaying System Configuration File that Group Measurement No can be changed to the operators Pump Speed 1 25 l min specifications Sampl interval 1s e Press START for resetting Reset period AUT s e Confirm Press gt when displayed with dorada SE e e Continuous measurement will start after Zeg Ge 0 50 m a short preintegration period e Press ESC to return to the Main Menu Save Curr Val No Temperature 99 grad PID On Off On Calibration gas Figure 25 Continuous Measurement Menu After having the instrument switched off IR unit needs to get stabilised It is recommended to use CONTINUOUS
7. and gasoline fuels are the most common contaminants in the soil vapour survey The list of measured compounds offers also frequent mixtures of diesel and gasoline fuels see Table of measured compounds Diesel fuel 1 Diesel fuel 2 Gasoline 1 Gasoline 2 Jet fuel JP 4 Jet fuel JP 5 Jet Fuel JP 8 Selecting the most suitable mixture enables you to get reliable quantitative results for the contaminated area For more precise quantitative results it is necessary to exactly know thweighted ratios of individual spectral components of contaminant to calculate their weighted contribution Then choose dominant component from the contaminant spectrum and select it in the list of measured compounds it amp coprobe 5 Concentration of all components may be later calculated for all measured values of the locality according to the weighted scheme to achieve the absolute concentration results The spectral characteristic of contaminant must be homogenous over the whole locality e g the ratio of volumes of individual spectral components is approximately equal and also the soil character of given environment must be of the same composition Note Use Ecoprobe 5 as a sophisticated sampling device Connect the absorbent cartridge to the instrument outlet You can preset pumping speed and observe other parameters on the instrument screen during the sampling interval NEW 6 This instrument s new feature offers on line data transfer frormEcoprobe 5 t
8. and its connecting tube receive special care while being cleaned Cleaning the probe The sampling probe must be cleaned after measuring each station to remove all residual gas and condensation from the inside This is usually the responsibility of the probe s carrier Cleaning should be carried out using fresh non polluted air in a flow direction equal to the sampling The higher the concentration and the heavier the hydrocarbons at the previous station the higher will be the volume of air needed to be pumped in The probe cleaning can be minimized in case of soil gas containing contaminants originally in gas phase for instance methane On the contrary soil gas containing intensive vapours of heavy oils demands greater volume of cleaning air for instance res Cleaning air can be blow through by means of a manual pumping device for rubber mattresses do not blow into the sampling probe with your mouth as it may moisten it and thus cause incorrect outputs Attention needs to be paid to the sampling apertures at the bottom of the sampling probe From time to time these need to be cleaned of residual contaminated soil In contaminated localities there may be a certain layer of contaminant at the underground water level If the sampling probe is inserted into such environment ibecome very contaminated In order to avoid false readings clean out the pumping inlet immediately by means ofstrong detergent for very dirty dishes Fairy Ultra detergent is mos
9. monitoring of bio remediation where bacteria will consume oxygen and generate heat along with methane and carbon dioxide Routine periodic repetition of sampling at fixed locations can track both the progress and health or effectiveness of the process since the results provide a clear indication of bacterial activity as well as contaminant concentration Usefulness in brief e Detection delineation amp monitoring of hydrocarbon and other organic contamination of soils amp water table from fuel spills air pollution monitoring PID e Waste dumps UST leakage e Pipeline leakage agricultural waste e Monitoring of plume migration e Monitoring of in situ bio remediation processes Oo Detection and monitoring of gaseous toxins in industrial plants and agricultural applications Instrument Description All the basic controls necessary for Ecoprobe 5 s operations are described bellow This user friendly easy to operate system allows the operator to select the optimal settings for data gathering Maximum benefit is derived from Ecoprobe 5 by following the instructions systematically 2 INSTRUMENT DESCRIPTION 2 1 BASIC CONTROLS 2 1 1 Display panel four keys arranged in two islands Figure 1 ESC Terminates operations and returns to the Main Menu RUN Starts a selected procedure ON OFF Switches the instrument on off LIGHT While holding down the key is used to switch the screen back light on off is used PRES
10. ECOPROBE Operator s Manual CONTENTS 1 Specifications 1 1 PID analyzer 1 2 IR analyzer 1 3 Applications 2 Instrument Description 2 1 Basic Controls 2 1 1 Display panel 2 1 2 Handle Control 2 2 The front of the instrument 3 Start ECOPROBE 5 4 Main Menu 5 How to enter a locality using Locality Management 5 1 Entering a new locality 5 2 Selecting an already existing locality 5 3 System Configuration File 6 How to start measurement using Locality1 Locality 2 6 1 Standard Grid 6 1 1 Measurement Mode 6 1 2 Measurement 6 1 3 Finishing measuring 6 1 4 Repeating the last measured point 6 1 5 Data Logging Standard Grid 6 2 GPS logging 6 2 1 About Global Positioning 6 2 2 GPS and Ecoprobe 5 6 2 3 Measurement Mode 7 Continuous measurement 8 Monitor 8 1 Howto enter and measure a Monitoring station 9 Communication 10 System Configuration 11 Calibration 11 1 PIDunit 11 2 IR unit 11 3 Ecoprobe 5 Calibration procedure 12 The field survey 12 1 General 12 2 How to interpret a photoionization breakdown phenomenon of the PID unit 12 3 Relative and absolute outputs of the PID unit 13 General 13 1 Power Supply 13 2 Warranty 13 3 Troubleshooting 13 4 Important Notes 0 00000001010 WNN ECOPR BE 5 Ecoprobe 5 introduces a new level of flexibility convenience and quality to in situ detection and analysis of VOC s and other contaminant indicators Cost effective definitive soil contaminant surveys which provide a
11. ID calibration in this case 118 Isobuthylen result PID concentration units ppm for STANDARD mode ppb for HI SENS mode the same for IR Methane channel the same for IR Total Petroleum channel the same for IR CO channel 6 1 2 Measurement Use to start measurement of the next point Y coordinate is increased by the increment Use The first measured station is then X 0 Y 10 If you want to measure the station with coordinates X 0 0 Y 0 0 it is necessary to set the starting point at X 0 0 Y 10 minus ten using to move one station back Measurement starts with resetting when Press gt is displayed Current values of concentration are displayed during the sampling interval in four graphs and resulting concentration is displayed at the end of the sampling interval on the left hand side Figure 15 13 Locality 1 Locality 2 DESIREE x 0 0 Y O 20 3 T 17 9 P PID 43 698 ppm Meth Figure 15 Measuring Mode Menu after measuring of the first station e Use to start measurement of the next point X 0 Y 20 Use to review already measured data on the line If the small cursor is located at the last measured point the measurement of the next point will start after pressing 6 1 3 Finishing measuring Use ESC button on the display panel to get back to the Main Menu All data are saved a Ifyou want to continue measuring l
12. MEASUREMENT mode for about 1 minute before starting the measurement The operator can thus avoid the incorrect readings at the first measured station 21 8 MONITOR Ecoprobe 5 can be used to operate automatically as a monitoring station You can just preset parameters in Monitoring Station Configuration File and leave the instrument anywhere needed Ecoprobe 5 will work for you 8 1 How to enter and measure a Monitoring station e Use LOCALITY MANAGEMENT from the Main Menu to open the Monitor Mode Menu Figure 26 e Select Open MONITOR LOC to access a list of all localities and monitoring stations Figure 27 e For entering a new monitoring station select lt new gt Monitoring Station Configuration File Figure 28 will be opened After entering a name and making possible changes return to Main Menu by pressing and following the instructions on the screen Name of the new monitoring station will be displayed after MONITOR in the Main Menu e For entering an already existing monitoring station select the name of the monitoring station in the list of localities and monitoring stations Figure 27 Its Monitoring Station Configuration File will be opened for possible changes If you do not want to make any changes just return to the Main Menu by pressing 2 and following the instructions on the screen Name of the selected monitoring station will be displayed after MONITOR in the Main Menu e If there isa name of a monitoring station aft
13. System Configuration File of CAL1 Locality as follows 1 2 The reading MUST be switched to ppm values for all channels select STANDARD mode and ppm units In PID channel the Calibration gas Isobuthylene 118 or equal Isobutene must be selected Do not mistake it for Isobutane which features much higher response 28 Calibration Due to absorption of the gas inside the calibration bag gas temperature changes inside the bag the gas is cooled due to rapid expansion after inserting it from the pressurized cylinder and a number of other natural influences the test result in Locality CAL1 may be slightly different from the concentration you have typed in before calibration In this case two step or three step calibration is recommended Follow the next instruction Run the calibration again with the typed value of the calibration gas corrected as follows Example a For the first time you have typed in the value 100 ppm The test result shows 96 ppm Difference is 4 ppm b Type in the value 104 ppm and run the calibration again c Inthe Locality mode CAL1 run the test measurement The value must be very close to 100 ppm If not or if you are not happy with the precision run the third step of calibration You can apply the same procedure to calibration of all channels The common rule If the result test value is lower than the value you typed in before the calibration insert the value with added differenc
14. big part of the memory on the disc Locality Management System Configuration File PUMP SPEED ENTER NUMBER Liters per minute AUT 2 25 2 50 0 1 2 3 4 5 6 7 8 9 Figure 12 Pump Speed Menu Figure 13 Resetting Period Menu Standard measuring process consists of three phases Group measurement is set on No 1 Resetting period zeroin Ensures perfect cleaning of analytical units and perfect zero stability and accuracy of the measurement Resetting interval is controlled by internal operating software Analytical units may be contaminated by previously measured high contamination Resetting time is directly dependant on the extent of the last measured concentration The heavier the hydrocarbons the longer the time for cleaning of the analytical units Zeroing time may thus range from 3 to 30 seconds Ambient fresh air is used for resetting for most of the environments If ambient air is contaminated it is recommended to use cylinder with fresh air for each zeroing cycle v Resetting period AUT The instrument resets itself thus yielding the best results Default value can be changed by opening and selecting from the Enter Number Menu Figure 13 2 Pre integration period This initial pumping phase floods conditions the system with the vapour to be analysed This procedure suppresses the tendency of the vapour to condense on internal surfaces in cold weather This procedure also ensures perfect zero stability v Pre
15. bon dioxide Characteristics Four independent channels features following ranges with ppm resolution Methane 0 500 000 ppm detection limit 20 ppm Petroleum Hydrocarbons 0 500 000 ppm including Methane detection limit 20 ppm Carbon Dioxide 0 500 000 ppm detection limit 20 ppm Reference channel ppm or mg m3 output 1 3 Applications With the very high sensitivity of the PID this instrument has capability that reaches well beyond the standard soil vapour survey Effectiveness in the detection and monitoring of contaminant spills and plume migration is substantially enhanced by the incorporation of ancillary data The remarkable zero stability combined with no response to methane provides a detection capability undiminished by natural hydrocarbon occurrence ensuring the application of optimum sensitivity levels UST and pipeline leakage detection and localization are further extensions of the soil vapour applications as is also the tracking of contamination from agricultural waste Less obvious applications are to be found in the detection and monitoring of organic toxins in industrial applications Minute traces of gas can be an indication of approaching breakdown of a shaft seal or packing in a process vessel with externally driven components Real time continuous display mode makes localization of leakage with pinpoint accuracy a reality Further applications incorporating the IR and temperature detection are found in the in situ
16. by pressing v Evaluation Resulting values can be displayed as Maximum or as Integral Maximum instrument will find maximum value calculated as an average of three consecutive highest values Integral instrument will calculate numerical average of all measured values Default value is Maximum and can be switched by pressing Y IR and other selections Self explanatory Locality 1 Locality 2 6 HOW TO START MEASUREMENT USING LOCALITY 1 LOCALITY 2 6 1 STANDARD GRID 6 1 1 Measurement mode If a name of a locality is displayed after LOCALITY 1 or 2 in the Main Menu for example DESIREE and Standard Grid was selected in the System Configuration File use to select LOCALITY 1 or 2 DESIREE to open its measurement mode Figure 14 Description First line Second line Third line Fourth line First graph Second graph Third graph Fourth graph DESIREE Inc 10 0 X 0 0 Y 0 0 O2 De H P PID 43 ppm Meth ppm T P ppm CO2 ppm Figure 14 Measurement Mode Menu The name of Locality and Y increment Default setting is 10 metres X coordinate Y coordinate default setting is 0 0 metres if Standard grid was selected in the System Configuration File Oxygen concentration Soil temperature Humidity there is no reading of humidity as humidity sensor is not implemented in this version Absolute ambient pressure vacuum during pumping P
17. d as the water valve does not allow the gas to be pumped in The position of the sampling probe has to be vertical It is not recommended to decline the probe since the water valve may stop the air supply and it is not designed to operate in a declined positionWhen surveying a potentially waterlogged terrain use a stick to test each hole for seepage water e Ifa delicate measurement is required the probe may not be used only plastic tubes with a dust filter are possible In this case always ensure that there is no liquid in the site to be measured Carefully avoid letting any liquid seep directly into the instrument s sampling aperture This causes serious damage to the analytical units and the warranty repair might be jeopardised e Before measuringeach station always check that air can be pumped from the inserted sampling probe This helps to avoid many problems in data interpretatidh e Ample time must be allowed before measurement after the sampling probe has been inserted into the sampling hole This time intervamust be equal for all stations of the locality The recommended time interval is from 1 to 3 minutes depending upon the soil structure For very permeable soils this time interval may be shorter less than half a minute for example For semi permeable soils and in windy weather when the hole is strongly aired the time interval needs to be considerably longer for example 3 minutes In all cases the choice of the proper interval
18. e higher et vice versa 29 NR means No Response to the particular compour TABLE al MEASURED COMPOUNDS Compound Name Lamp 9 8eV Lamp 10 2eV Lamp 11 7eV IP eV DECH Acetic Acid Acetic Anhydride Acetone Acetone Tne 114 Seen SES 101 Acrylic Acid C3H402 10 6 Acrylonitrile 1091 Ally alcohol 9 67 Ally chloride Ammonia HN 1010 Amyl alcohol 10 Aniline 772 Anisole po ER EC RER Benzaldehyde 9 49 Benzene PCH REISER EE Benzonitrie 9 52 Benzyl chloride Bromobenzene Pose NR Jos os 8ss Bromoform 10 48 Bromopropane 1 Pere E T os 0x8 Butadiene 9 07 Butadiene Jiepoxde13 pam aj as EES Butane IA COI CI A ATEO Butanol T ps y a A Butene 1 Ps JR Jasa ess Butoxyethanol 2 eso pp ssp we os lt Butyl acetate n 10 Butyl acrylate n e pa gt ts os Buyiamine Ss Butyl cellosolve A A fa Butyl mercaptan 914 Carbon disulfide CS2 10 07 Carbon tetrachloride 11 47 Chlorine CS 11 48 Chioro 1 3 butaciene 2 Chiorobenzene Chloro 1 T dfluoroethane 1 R 142B Chloroethane Chioroethanol Chioroethyl methyl ether 2 Chloroform Chiorotoluene o pra gt PT Chlorotoluene p perra pa gt gt wa os Grotonaldehyde Cumene Cyanogen bromide Cyanogen chloride Cyolohexane Cyolohexanal Cyclohexanone CERS REUSCH Cyclohexene Peng COM A CO 30 TABLE OF MEASURED COMPOUNDS Cyclohexylamine Cyclopentane Decane Diacetone alcohol Dibromoethane 1 2 Dichlorobenzene o Dichlorodifluoromethane Dichl
19. e Measuring Mode of the titled locality see Chapter 6 How to start measurement 5 2 Selecting an already existing locality e Ifthe locality you want to measure is named after LOCALITY 1 or 2 in the Main Menu just select the option and the Measuring Mode will be opened e f you want to measure another locality select LOCALITY MANAGEMENT then Open LOCALITY 1 Open LOCALITY 2 and in the list of localities select the locality you want to measure for example Oxford Figure 6 lts System Configuration File will be opened which can either be changed or you can return without making any changes to the Main Menu by pressing and following the instructions on the screen The selected locality is associated with LOCALITY 1 LOCALITY 2 and can be accessed by confirming LOCALITY 1 OXFORD LOCALITY 2 OXFORD in the Main Menu Locality Management System Configuration File 53 System Configuration File This chapter describes all parameters of the System Configuration File Figure 7 and provides instructions for entering new values and parameters Note Communication software Ecoprobe Plus can be used to edit System Configuration File from a PC or Notebook System Configuration File parameters Y LOCALITY noname Enables to enter a name of a locality e opens Enter Character Menu Figure 9 to type the name ENTER CHARACTER e Scroll through the Menu with e Select a character with e Continue completing the localit
20. eakdown limit is around 4000 ppm and varies for different spectral compounds To indicate this phenomenon by means of the inner instrument software is not entirely clear and it is not common for this type of instruments RS DYNAMICS worked on a technique of photoionization breakdown indication with following results Ecoprobe 5 indicates the concentration exceeding breakdown limit by the message over displayed on the instrument screen but this message is not displayed in all cases Depending on different conditions particular compounds the speed of photoionisation breakdown process amount of concentration the output may also show a low breakdown value hundreds of ppm for concentration higher than photoionisation breakdown limit Above mentioned facts must be considered in interpretation and are valid for STANDARD mode see Chapter 12 The field survey In case of HIGH SENSITIVE mode the measured limit is 100 ppm Higher values of concentration are almost always indicated by the message over displayed on the instrument screen If hydrocarbons are presented in the contamination consequent continuity between PID in Standard mode and IR unit outputs can be observed after photoionisation breakdown of the PID unit If the contamination consists of other compounds no hydrocarbons there is no response of IR unit 1 2 IR analyzer Infra red analyzer provides selective detection of methane petroleum hydrocarbons and car
21. er MONITOR in the Main Menu the instrument will start measurement of the titled station when this option is selected MONITOR MODE SELECT MONITOR LOG MONITOR noname lt new gt Scarborough Interval 10 0 min Open MONITOR LOC Delete Monitor Figure 26 Monitor Mode Menu London St Albans Kimpton Figure 27 A list of localities and monitoring stations Figure 28 Default Monitoring Station File 22 Group Measurement No Pump Speed 1 25 l mim Sampl interva 1 0s Reset period AUT s Preint period 4s Integr period 20s Probe Depth 0 50 m Save Curr Val No Temperature 1 grad PID On Off On Calibration gas 43 Isobutylene Units ppm Evaluation Maximum InfraRed On Off On Methane On Total Petroleum On CO2 On Units ppm Evaluation Maximum Humidity Off Oxygen On Temperature units C Pressure units kPa Save Configuration Monitoring Station Configuration File v MONITOR noname Enter the name of a station 8 characters It is recommended to put for example M or MON before or after the name of the station to ensure that you will access a monitoring station when working with the list of localities and monitoring stations No locality can be accessed using the option Open MONITOR and Error message will be displayed on the screen In short Use Open MONITOR to enter a monitoring station Use Open LOCALITY 1 2 to enter a locality v Interval 10 0 min At the end of p
22. erpret a photoionization breakdown phenomenon of the PID unit in the field For a concentration higher than a given limit the ionization process will breakdown Further increase of concentration may even lead to the decay of output The average value potoionisation breakdown limit is around 4000 ppm and this value varies for different soectral compounds STANDARD mode In many cases the concentration exceedingphotoinisation breakdown limit is indicated by the message over displayed on the instrument screen and the longest possible line in the graph is associated with each measured concentration higher than this limit Figure 36This indication is not always valid Depending on different conditions particular compounds the speed ghotoionisation breakdown process amount of concentration the output may also show a low breakdown value hundreds of ppm for concentration higher tharphotoionisation breakdown limit Figure 37 PID response STANDARD mode 5000 4000 g 3000 a e 2000 1000 0 1 3 5 7 9 11 13 15 17 19 21 23 25 distance m lt gt Localisation of the highest contaminant concentration Figure 36 Response of PID unit to rising concentration of contaminant for STANDARD mode valid for most contaminants PID response STANDARD mode 3 5 7 9 1113 15 17 19 21 23 25 27 distance m 1 Localisation of the highest contaminant concentration Figure 37 Response of PID unit
23. g channels Those analytical channels PID IR methane total petroleum and CO that are actually needed for an investigation should be selected switched ON Each channel uses current and thus reduces the instruments effective operating time v PID On Off Switches the PID analytical mode ON OFF v Range enables you to select between two modes STANDARD results are displayed in ppm or mg m In most cases the concentration exceeding photoinisation breakdown limit is indicated by the message over displayed on the instrument screen and the longest possible line in the graph is associated with each measured concentration higher than this limit Figure 36 This indication is not always valid In a number of cases high concentration exceeding photoionisation breakdown limit may also show a low breakdown result value Figure 37 MEW A HISENS very sensitive mode results are displayed in ppb or ug m The highest measured value in this mode is 100 ppm If the measured value exceeds 100 ppm a message over is displayed on the screen v PID Calibration Gas opens a window with a selection of around 200 different spectral compounds that can be used for the automatic calibration of the PID unit see Table of Measured Compounds in Chapter 11 e Use to select a compound e confirms stores the selected item e returns to System Configuration File Units Resulting values can be displayed in ppm or mg m that can be switched
24. he upper right hand corner Figure 17 Change Y coordinate e change the sign of the increment e opens the Enter Number Menu to change the value of the increment v Change X coordinate e Use from Measurement Mode Menu to open the menu in Figure 18 e Select Change Xand use to open the following menu Figure 19 DESIREE X 10 0 Change X Enter Y Figure 18 Change X coordinate Figure 19 Selecting X coordinate 15 Locality 1 Locality2 Data Logging e change X coordinate by the displayed increment e Use to open a menu in Figure 20 Coordinate X OK Enter X Figure 20 e Confirming the X coordinate by pressing OK will take you back to Measuring Mode Menu e For entering another value select Enter X Enter Number Menu will be opened for typing in any X coordinate Confirming the X coordinate by pressing OK in Figure 20 will take you back to Measuring Mode Menu v Change X increment moves the cursor in Figure 19 to the X increment in the upper right hand corner changes the sign opens Enter Number Menu to change the value of the increment confirming the new value in Enter Number Menu will take you back to the menu in Figure 19 NNN cl Locality 1 Locality2 GPS Logging 6 2 GPS LOGGING 6 2 1 About Global Positioning GPS The Global Positioning System has changed the way people navigate the oceans the
25. integration period Default value is 4 seconds and may be changed by opening and selecting from the Enter Number Menu Gei Integration period Instrument processes output signal from analytical units at a default rate of 10 measuring cycles per second and displays course of measured values in four graphs These graphs may be saved and used when working with Ecoprobe Plus communication software see Save Current Values At the end of the integration period the resulting values are displayed on the screen and saved on the disk Ki Integration period Default value is 20 seconds and can be changed by accessing the Enter Number Menu xXx Probe depth The depth of the hole into which the probe is inserted Default value of 0 5 metres can be changed by accessing the Enter Number Menu S Save Current Values Course of measurements four graphs at one station can be saved and displayed later on PC using Ecoprobe Plus communication software Current values take up space on disk that should be considered while working with the instrument Locality Management System Configuration File Default value is NO and can be switched to YES by pressing The possibility of recording the course of measurement provides a special advantage and represents real soil condition v Temperature Enter the ambient air temperature for the record Default value is 1 grad that means no value has been inserted Note Next follows the setting of measurin
26. ithin several minutes since the instrument is precalibrated for all the lamps noted Table of compounds measured by means of PID unit PID response to different spectral compounds is specified by lonisation potential of a particular compound lonisation potentials IP are listed in the table of measured compounds Figure 35 Constants in 3 other columns for different lamps express recalculated relative responses of individual compounds versus calibration gas Isobuthylene The constants are only for your convenience Ecoprobe 5 internal software processes all the data and displays definitive results 26 Calibration 11 2 IR unit For IR Methane IR Petroleum and IR CO channels the same calibration procedure as for PID unit is valid IR analytical unit requires calibration over a much longer interval as the unit has a reference channel capable of compensating for the dusting reading The standard IR calibration interval ranges from 1 to 12 months depending on the dust conditions 12 months for CO2 channel For calibration of IR Methane and IR Total Petroleum channels use a cylinder with 10 000 ppm of Methane concentration mixture with synthetic air never nitrogen For calibration of CO channel use a cylinder with 10 000 ppm concentration of CO mixture with synthetic air never nitrogen Reserve one calibration bag for calibration of IR Methane and IR Total Petroleum channels and another calibration bag for calibrati
27. llows continuous CONTINUOUS MEASUREM operation without any data being logged MONITOR COMMUNICATION MONITOR Enables automatic monitoring of SYSTEM CONFIGURATION contamination at a predetermined sampling rate CALIBRATION COMMUNICATION Enables transferring data from AA Ecoprobe 5 to a PC or notebook The user friendly communication software Ecoprobe Plus running under WINDOWS 95 98 2000 or Win NT 4 0 facilitates transfer of data and its graphic presentation see Ecoprobe Plus User Manual Figure 4 Main Menu SYSTEM CONFIGURATION Allows editing of the default values of the System Configuration File CALIBRATION With the appropriate calibration standards optional items an operator can calibrate both the PID and IR analytical systems in the field Each item of the Main Menu contains sub menus Use to scroll through the menu and to access a selected item Locality Management 5 HOW TO ENTER A LOCALITY USING LOCALITY MANAGEMENT Before starting a measurement it is necessary to enter a name and measuring parameters of a new locality or select an already existing locality 5 1 Entering a new locality First select LOCALITY MANAGEMENT from the Main Menu for entering a name and parameters of a new locality Menu in Figure 5 will be displayed Select either Open LOCALITY 1 or Open LOCALITY 2 Both items offer the same menu a list of existing measured localities and the option of a new locality Figure 6
28. manship and defective componentEcoprobe 5 contains no operator serviceable units or parts and any unauthorised attempt to open the instrument will invalidate the warranty Damages to the instrument caused by unqualified operation of the instrument or using the instrument for purposes not specified in the operator s manual without prior consultations with the manufacturer will also cancel the warranty 133 Troubleshooting If the system hangs and stops responding press three buttons on the display panel ESC LIGHT and RUN at the same time Ecoprobe 5 will switch off Press ON OFF button to start again and reboot the instrument 13 4 Important notes NEWER allow water or dust to be suck inside theunit Use standard gas filters consumables sold at petrol stations while measuring Using the IR unit ON newer set the resetting interval shorter then 10 seconds AUT zero mode or more then 20 seconds fixed zero interval is recommended time for proper operation Always clean the unit after the use by startingcontinuous measurement with no gas inserted Do not use the displaybacklight if not necessary It noticeably discharges the instrument battery Charge the instrument battery regularly even if not in use Proper interval 3 weeks 39 LOVEROBE 3 Notes RS DYNAMICS ECOCROBE 5 Notes RS DYNAMICS
29. mended setting up a team of threeoperator borer and probe carrier who cooperate as follows the operator measures station number n while the borer is finishing boring the n 1 borehole At the same time the probe carrier removes the second probe fromole n 1 and inserts it into hole n 1 cleaning it by blowing it out while other work is going on The probe must be inserted with minimum time delay after the brace has been pulled out Then the borer starts to make the n 2 borehole After finishing measuring the station the operator startsesetting the instrument using fresh air The plastic tube with the dust filter has to be removed from the gas inlet of the instrument and connected again after resetting at the next station e Before a full day of measurement it is necessary to fully charge the batteries Charging is automatic and the apparatus cannot be overcharged It is a good practice to perform this procedure overnight e Before starting the measurement of the locality IR unit needs to get stabilised Use CONTINUOUS MEASUREMENT mode for about 1 minute before switching into the measuring mode The operator can thus avoid any incorrect readings at the first measured station e In spite of the fact that there is anautomatic water valve on the probe top it is best to avoid inserting a sampling probe directly below water level If a probe is inadvertently inserted into underground water the reading will be close to zero or much lower than expecte
30. ment set As consumables they may be purchased for example at gas stations 11 1 PID unit Even though filters are used the PID unit may become dusted and calibration procedure must be performed Calibration intervals e From 1 to 6 months if not working in dusty environment and using dust filters e Once a week if working in dusty environments with dust filters e Every day if precise quantitative values are required Calibration Kit consists of e LINDE plastic metal bag and valve for inserting gas from the cylinder e Cylinder with calibration standard LINDE 100 ppm Isobuthylene mixed into synthetic air never nitrogen Content of the cylinder 21 150 atm is enough for about 200 calibrations if the operator does not waste the gas Refills of the calibration gas may be purchased from any company providing calibration standard gases for gas chromatography Air Products SIAD LINDE and others Ecoprobe 5 PID unit is calibrated only for one calibration gas Isobuthylene This procedure however automatically calibrates the instrument for all other compounds stored in the instrument memory List of the compounds is printed in a table in Figure 35 for three different ionisation lamps 9 8 eV 10 2 eV and 11 7 eV featuring the selective Methane suppression Ecoprobe 5 is equipped with 10 2 eV ionisation lamp Other lamp options may be ordered with a specific spectral characteristic The lamps may be switched directly in the field w
31. n unprecedented breadth of high precision data result from its combination of PID and IR detectors complemented by temperature and pressure data A new dimension in detection is provided by the simultaneous measurement of total soil gas vapor concentration PID detector together with four channel selective analyses for methane carbon dioxide oxygen and petroleum hydrocarbons IR detector 1 1 PID analyzer Characteristics e Detection limit 0 1 ppb 0 0001ppm e ppb resolution 0 1 ppb zero stability e calibration for quantitative vapour phase determination for over 200 compounds included zero response for methane methane measured separately by IR unit e large dynamic range 0 1 ppb to 4000 ppm fast response 0 5 sec e ion lamp 10 2 eV other energy levels are optional e STANDARD mode with ppm or mg m3 output or HISENS mode with ppb or ng m3 output PID unit measures total concentration of volatile organic compounds VOC and other toxic gases including chlorinated hydrocarbons selectively excluding methane from the total sum Relative outputs Ecoprobe 5 enables you to map a relative concentration cloud identifies the contaminant sources paths and the range of contaminated area Measuring by means of Ecoprobe 5 is simple fast and cheap and eliminates the principle of redundant and expensive analysis of the spectrally known and almost identical samples Absolute outputs PID unit is calibrated only for one calibration gas
32. nect Ecoprobe 5 with the appropriate cable to PC e Select COMMUNICATION in the Main Menu e Opens a menu in Figure 29 COMMUNICATION MODE Status Wait Press ESC to abort 16 59 13 14 8 Figure 29 Communication Mode e All subsequent commands are issued from the computer see Ecoprobe Plus User Manual This procedure enables transferring data from Ecoprobe 5 to a PC or notebook and will edit any System Configuration File inside Ecoprobe 5 from your PC The user friendly software Ecoprobe Plus running under WINDOWS 95 98 2000 or Win NT 4 0 facilitates rapid transfer of data and its graphic presentation Press ESC to return to the Main Menu 24 System Configuration 10 SYSTEM CONFIGURATION SYSTEM CONFIGURATION Enables you to change default setting of the System Configuration File which is always offered when any new Standard Sg i X Increment 10m locality is opened Y Increment 10m In case of need you can reconfigure this default System Configuration File to meet any definite requirement Group Measurement No However if you are not very experienced it is advisable not Pump Speed 1 25 l mim to make any changes to the default setting Sampl Interval 1 0 s Reset period AUT s Preint period 4 s Integr period 20 s 10 make changes e To make changes Probe Depth 0 50m Save Curr Val No Temperature 1 grad PID On Off On e Select SYSTEM CONFIGURATION in the Main Menu e opens System Configurati
33. needs some field experience Never use the same boreholes for repeated measurement of the same station This can produce distorted results especially in poorly permeable soils The inserted protraust allow easy pumping of the air If it is inserted into a tight borehole inclaystones and soil sealed pumping perforation air cannot be pumped in The apparatus will record either no reading or a distorted value not representing the real contaminant concentration e f contaminants are especially designed not to create aapour phase for example transformer oils or in wet claystones and other poorly penetrable soilsmeasuring is very difficult sometimes even impossible and generally requires extensive experience 34 Field survey e Measuring below the freezing point can usually cause serious problems since the surface is covered by the frozenlayer which causes homogenization of contaminantapour concentration under the frozen lid This effect brings about loss of localization of contaminant sources and generally all the anomalies e Using dust filters considerably decreases the probability of failure of the units Connect a piece of plastic tube to Ecoprobe 5 gas inlet Connect the filter and then with another plastic tube connect the sampling probe DUST FILTER SAMPLING PROBE ECOPROBE 5 PLASTIC TUBES Heavily contaminated soil vapour may leave a hydrocarbon residue in the entire system and it is therefore advisable that the probe
34. nstrument s responses to other compounds are different Calibration procedure however automatically calibrates the instrument for about 200 specific compounds see table of measured compounds in Figure 30This feature does not mean that Ecoprobe 5 is a spectral analyzer or a spectral selective detector and always measures total concentration of all spectral components presented The fact thatEcoprobe 5 is calibrated for many compounds can be utilizeih cases when composition of the contaminant is known H the contaminant consists of oneknown compound select it or similar compound which is chemically very close to the contaminant in the list of measured compounds to get quantitative concentration ofvapour phase Most contaminants consist of more spectral compounds Typical solvapour survey requires fast and reliable results If the contaminant spectral characteristic and soil character is approximately equal over the given environment results not far from quantitative values can be obtained by following next instructions Compare severalEcoprobe 5 values with values of laboratory analyzed samples collected from the same site and set correlation coefficients for matching samples If the correlation coefficient is approximately similar for all tested matching samples it is possible to multiply the whole set of 37 Field survey Ecoprobe 5 values with the calculated coefficient to get approximately quantitative values for the given locality Diesel
35. ntration 100ppm Figure 34 Calibration Menu after resetting Connect the calibration bag by means of a plastic tube with the Ecoprobe 5 gas inlet in front of the instrument and confirm the option Press gt on the display Keep the bag connected till the instrument stops measuring and displays the result Calibration coefficient If the coefficient is within the allowed limits you are asked to confirm it and this completes the calibration The coefficient is always calculated from the initial condition set up e g does not reflect the value of the previously set coefficient According to its value you can thus estimate the condition of the analytical unit If it tends to become dirty dusted the coefficient s value rises If the value exceeds the limit it is impossible to correct the process using software tools and the system will not allow completion of calibration You have three options for correction 1 Incorrect value of the gas concentration was typed in Figure 32 Correct the value and repeat the calibration procedure Internal parts of the PID unit is dirty dusted ask your agent for service clean out The calibration gas is out of order Ask for new refill Control of the Calibration procedure After the calibration is completed check the result by switching to the locality mode and measuring one test station you can create a locality linked with calibration procedures named for example CAL1 Set the
36. o the computer while measuring in any mode standard measuring mode monitoring station mode or continuous measurement mode For recording data in this way it is necessary to purchasean optional special software The software enables you to overview measured data on the computer screen at a rate of one line per second Each line contains the following information PID IR Methane IR Total Petroleum IR CO2 concentration concentration concentration concentration All data can be stored on the computer disc More information is contained in the communication software manual For establishing communication for short distances up to 40 meters conned coprobe 5 with the appropriate cable to the standard computer serial port RS 232 For long distance data transfer up to 3 km the manufacturer provides optional serial adapter RS 232 to RS 488 For distances above 3 km Ericsson or Siemens GSM Radio CommunicationModul can be provided 38 General 13 GENERAL 13 1 Power supply Use system Ecoprobe 5 charger or any DC power source ranging from 4Volts 5 A to 24 Volts 0 5 A to charge or continuously supply the unit After charge the instrument will automatically switch to the supply mode Continuous supply is utilized when the MONITOR mode is intended for consecutive use for example monitoring station You can also use solar batteries to charge supply the unit Using a car cigarette lighter socket for charging the ins
37. ocality DESIREE select LOCALITY 1 or 2 DESIREE in the Main Menu This operation will take you to the last measured point of the locality Q Use ON OFF button if you want to switch the instrument OFF 6 1 4 Repeating the last measured point e Move the cursor one point left from the last measured point e Press RUN e Select Measure from the displayed menu Figure 16 The measurement of the last point is repeated Change measured data Measure Cancel Figure 16 Repeating the last measured point Locality 1 Locality2 Data Logging 6 1 5 Data Logging Standard Grid Data logging is a powerful and versatile tool for network field measurement Network is defined by number of lines X and number of stations Y on the line Operator can freely move to any XY station just by changing X and Y coordinates Changing Y and X increments enables you to proceed by the most suitable measuring interval and thus select an optimum network scheme for a given environment Decimal and negative values can also be entered Measured values are saved in an orderly manner in the network system v Change Y coordinate e Use from the Measurement Mode Menu Figure 15 to open the menu in Figure 17 Change X Select Enter Y Enter Number Menu is opened Enter Y Type in the Y coordinate Y Change Y increment e Use from Measurement Mode Menu to select the increment Inc in t
38. on File Figure 30 Range STANDARD p y ge e Use the same procedure as in the case of configuring Calibration gas Locality or Monitor Configuration File 43 Isobutylene Units ppm There are 2 ways of saving changes in the System SEN Configuration File InfraRed On Off On f Methane On 1 Select Save Configuration at the end of the file Total Petroleum On 2 Press to save changes and follow the Lie On instructions on the screen Units ppm Evaluation Maximum Humidity Off Oxygen On Temperature units C Pressure units kPa Save Configuration Figure 30 System Configuration File 25 gt Calibration 11 CALIBRATION Ecoprobe 5 measuring set comprises Single gas Calibration Kit for PID unit calibration Calibration Kit provides everything you need for field calibration Calibration interval depends upon absolute accuracy required and on dust condition of surveying terrain If dusty gas is sucked into the instrument PID unit may become dirty It is highly recommended using a dust filter that is to be inserted between Ecoprobe 5 gas inlet and the sampling probe The filter should be changed after 1 to 30 measurements depending upon the amount of dust and extent of contamination of the measuring environment Dirty filters can be cleaned and used again If heavily contaminated gas was let into the instrument the filter should be changed and not used for a second time Extra filters are included in the instru
39. on of CO channel Do not mistake them for each other as they may contain residue of calibration gases and thus cause inaccurate results 11 3 Ecoprobe 5 calibration procedure Calibration procedure is controlled by internal Ecoprobe 5 calibration program It is easy and takes about 3 minutes in the field e Select Calibration from the Main Menu and use to open Calibration Menu in Figure 31 e Select PID for calibration of PID unit and use to open PID Calibration Menu Figure 32 e Press to change the concentration of the Calibration gas if needed concentration of calibration gas in the cylinder may not be exactly 100 ppm Type in the value that is written on the cylinder the value may vary within the interval 10 e Go down to Run Calibration to start the calibration procedure The cycle will start with a 60 second resetting interval Menu in Figure 33 is opened CALIBRATION PID PID Select device Gas Concentration PID Gas Concentration IR Methane IR Petroleum 100 ppm 100 ppm IR CO2 Run Calibration Resetting Figure 31 Calibration Menu Figure 32 PID Calibration Menu Figure 33 Run Calibration Menu 27 Calibration Fill the calibration gas into the calibration bag from the gas cylinder and immediately close the valve on the bag About 1 liter of gas is enough to complete the calibration When the resetting interval is finished menu in Figure 34 is displayed PID Gas Conce
40. ordinates in the world geodetic format WDS 84 without affecting accuracy Depending upon accuracy requirements users may select from GPS systems with e Meter precision e Decimeter precision e Centimeter precision 1 Meter precision Precision ranges from 3 to 10 meters using a single 8 channel receiver 2 Decimeter precision This GPS system uses Differential GPS techniques This involves two 12 channel GPS receivers Base station is located at a known point and transmits data over a radio link to the Moving station Moving station calculates precise position by using the signals from satellites and the data it receives from the Base station 3 Centimeter precision The same GPS system using Differential GPS techniques as above To fix positions with centimeter accuracy Post processing procedure is used by which the errors inherent to raw GPS data are removed after the field work has been completed Ecoprobe 5 system fully integrates all of the above options In all categories RS Dynamics Astech GPS receivers are required for which the system is especially configured For GPS logging connect GPS receiver to multifunctional connector in front of Ecoprobe 5 and select GPS logging in the System Configuration File Locality 1 Locality2 GPS Logging 6 2 3 Measurement mode If a required name of a locality is displayed after LOCALITY 1 or 2 in the Main Menu and GPS logging was selected in the System Config
41. oroethane 1 1 NR Dichloroethane 1 2 Dichloroethene 1 1 Dichloroethene c 1 2 Dichloroethene t 1 2 Dichloro 1 fluoroethane 1 1 R 141B Dichloropropane 1 2 Dichloro 1 propene 2 3 E Dichloro 1 1 1 trifluoroethane 2 2 R 123 Diesel Fuel 1 Diesel Fuel 2 Ditivamine Diethylaminopropylamine 3 Diethylmaleate Dimethylacetamide N N Dimethylamine Dimethyl disulfide Dimethylformamide N N Dimethylhydrazine 1 1 Dimethyl sulfate Dione 14 Epichlorohydrin Ethane Ethan Ethanolamine Not Recommended NR SE Ethoxyethanol 2 Ey acetate Ethyl acrylate N Styling Ethylbenzene Ethylene glycol NR Ethylene oxide Ey eter me Io Ethyl formate NR Ethyl hexyl acrylate 2 Ethyl S lactate Ethyl mercaptan Ey sue Formaldehyde Fara EE Gasoline 2 92 octane E Glutaraldehyde Geiben Henane m Hexamethyldisilazane 1 1 1 3 3 3 Hexen Eydrazino 31 Zz D lo NPN DA WI Y co o ala N al NR NR NR NR NR N N a o N 00 o a ip N iN o alo o 0 ALO a u R R R Kb Z IZ Z Z IZ Z Z Z KE KE KE KE Kb KE Kb KE KE Z IZ Z Z Z Z E Kb Kb D y D D Dd D D D U Dd H H H H D D H D D H H D D D D D d H D D D D 6 o o 8 S u 3 I o 0 u o 4 0 C Ki o e W I XN o S D Z FA Zz Z Z Z Z Zz a Ru a a TD D Dd eri N ajojn o oo _ fo N af oj v el o gt o o Wl NIO os al Pye O Ont Om A OO RI Pp oye oO N A Y wo al E E EE E E
42. reset interval instrument will repeat the measuring cycle Default value 10 minutes can be changed by pressing Enter Number Value will be opened for entering a new value v Group measurement Operator can choose between already mentioned modes Group measurement switched on YES is recommended This mode is easier and usually fulfils all requirements Instrument performs zeroing cycle only once at the start of the operation Zeroing cycle can however be started anytime by pressing the RUN key on the display panel for longer than 1 sec In case maximal precision and sensitivity is required it is necessary to work in standard mode Group measurement is switched on NO Each measuring cycle is preceded by a zeroing interval In this case a valve box with its own power supply is required to provide clean air to the instrument for zeroing This item is available as an accessory from the manufacturer All other parameters of the Monitoring Station File are set as for the System Configuration File Electrical power needed for an extended operation is supplied either by the Ecoprobe 5 charger power supply or by a 6 to 24 volt 0 5 ampere minimum DC source Solar cells are another possibility but the manufacturer should be consulted regarding detailed specifications and a special cable to connect to such power supplies 23 Communication 9 COMMUNICATION This mode is used for establishing communication between Ecoprobe 5 and PC e Con
43. sible to get fresh air for zeroing Instrument performs zeroing cycle only once outside in ambient fresh air or using special cylinder with fresh air at the start of the operation Following measurements are performed without zeroing thus avoiding the repetitive need for using cylinder with fresh air This procedure speeds up measurement but degrades detection limit This mode is used in areas requiring fast measurement where reading of very low values is not important and is also recommended for automatic monitoring of contamination monitoring stations v Pump speed opens a menu with a selection of pump speeds ranging from 0 25 to 4 0 l min Figure 12 e Use to select a speed Confirms stores the selected value and returns to the System Configuration Menu Y Sampling interval Default value is 1 second It means that the instrument stores data repetitively at a rate of 1 measuring cycle per second during the integration period if the option Save current values see bellow was selected The value of the Sampling interval can be changed by opening Enter Number Menu Figure 10 and ranges from 0 1s that is 200 measuring cycles per default 20 second integration period to 1s Course of measurement at one station can be displayed on PC using Ecoprobe Plus communication software H Save current values is selected for general survey it is recommended not to use value of Sampling interval smaller than 1 second as such data uses a
44. skies and land Commercial use of GPS has proven invaluable in many fields It has revolutionized surveying It can be used to track everything from migrating animal herds to the creep of the earth s crust GPS works on the principle of Triangulation By knowing its distance from three or more satellites the receiver can calculate its position by solving a set of equations Information from three satellites is needed to calculate longitude and latitude at a known elevation four satellites are needed to include altitude as well Satellites orbit the earth twice a day at an altitude of 10 900 miles repeatedly broadcasting their position and the time The atomic clock aboard each satellite keeps time by atomic vibration and is accurate to one second in 30 years GPS under development by the U S Department of Defense for more than 20 years consists of 21 satellites plus three back up satellites in predictable orbits around the earth The system provides 24 hour positioning information regardless of weather GPS satellite orbital information is referenced to WGS 84 WGS 84 is an earth fixed global reference frame using latitude and longitude coordinate system to locate points on the Earth s surface Lines of longitude are circles that intersect both the North and the South Poles Lines of longitudes are measured in half circles of 02 to 1802 East and from 02 to 1802 west from the Royal Greenwich Observatory in Greenwich England Lati
45. tly used in Europe and clean water for rinsing Do not use organic based diluents as they causes residual outputs Connecting tubes Special care is needed with the plastic connecting tubes between the probe and apparatus There is an effect of diffusion of hydrocarbons into the mass of the plastic The quality of the plastic materials varies If the concentration at the previous measured station was higher than 10 009pm there will be some tens or hundreds ofppm residue from the plastic tube of average quality on the next reading The worst type however is the soft white silicon tube while the best are transparertolourless or blue or slightly green plastic tubes intended for medical purposes Tygon mark tubes are highly recommended All black rubber tubes are to be avoided Careful cleaning of the tubes together with the sampling probe is recommended When measuring a delicate locality with dramatic shifts between very high and very low concentrations from one station to another the best solution is to use a set of tubes whose number is equal to the expected number of stations to be measured within one day At each station a cleaned tube is to be applied Used tubes usually self clean if placed on a room heater overnight The next day they are ready to use again Always clean the unit after a full day of measurement by starting CONTINUOUS MEASUREMENT with no tube connected to the gas inlet of the instrument 35 Field survey 12 2 How to int
46. to rising concentration of contaminant for STANDARD mode valid for some contaminants 36 Field survey For HISENS mode the instrument measures up to 100ppm and links this limit value with each measured concentration higher than this limit Example of a graph for HISENS mode is in Figure 38 PID response HISENS mode 13 5 7 911131517 19 21 23 25 distance m gt gt Localisation of the highest contaminant concentration Figure 38 Response of PID unit to rising concentration of contaminant for HISENS mode HISENS mode is extremely sensitive intended for precious measurements for example of air pollution where influence of other factors moisture tubing contaminant residuum etc is limited It is recommended to use STANDARD mode for typical soilvapour survey 12 3 Relative and absolute outputs of the PID unit PID unit measures total concentration of volatile organic compounds VOC and other toxic gases including chlorinated hydrocarbons selectively excluding methane from the total sum Relative outputs Ecoprobe 5 enables you to map a relative concentration cloud identifies the contaminant sources paths and the range of contaminated area Measuring by means dicoprobe 5 is simple fast and cheap and eliminates the principle of redundant and expensive analysis of the spectrally known and almost identical samples Absolute outputs PID unit is calibrated only for one calibration gas 4tsobuthylene The i
47. trument is also possible Ask your agent for details When the battery is considerably weak the message ATTENTION WEAK BATTERY will be displayed at the end of the resetting period It is possible to measure about 10 more stations The same message will appear at the end of each resetting period until the new message ATTENTION DEAD BATTERY is displayed The instrument will notallowed measuring the next station Press to return to the Main Menu Charge the battery by connecting the charger to the multifunctional connector in front of the instrument Charging time depends basically on the power capabilities of the DC source System charger will charge the internal battery to the full condition within about 2 4 hoursCharging mode is indicated by flashing of the red light When charging is finished the instrument will switch to the supply mode The red light in the IR window lights continuously A fully charged battery pack can powerEcoprobe 5 for full day s soil vapour investigation Boosting the battery over lunch or during an extended break is however advisable An overnight charge will restore the battery to full capacity Current consumption can be reduced by selecting only the necessary analytical systems During extended storage the battery should be charged every two to three weeks 13 2 Warranty Abuse and mishandling are excluded from the warranty that covers the instrument arwtiginal accessories for twelve 12 months against faulty work
48. tude is measured as an angle from the equator of the Earth 09 to the North Pole 902 North or to the South Pole 902South Lines of latitude are made by circles that run parallel to the equator s plane and grow progressively smaller as they get closer to the poles 6 2 2 GPS and Ecoprobe 5 Ecoprobe 5 is the first geophysical instrument in the world to provide GPS positioning The GPS system in Ecoprobe 5 can be used if a specific software is activated and if a special RS Dynamics GPS receiver is available Both of these items are optional Ask your agent for further information GPS logging GPS logging is a very effective data logging system with no need for concern about coordinates while measuring in the field Coordinates are displayed stored in the world geodetic format WGS 84 latitude GPS W longitude GPS L altitude GPS R and also displayed in surface metres X Y Z Locality 1 Locality2 GPS Logging What do X Y Z coordinates mean Imagine a tangent plane made at the first measured station to the global elipsoid The coordinates of the first measured station are X 0 Y 0 Coordinates of all other stations are related to the first station X 0 Y 0 This system provides easier orientation in the field but reduces the accuracy of positioning only on the instrument screen Measured data are stored according to time Communication software Ecoprobe Plus enables you to display and export to Excel a data table with co
49. uration File use to select the locality and to open the GPS welcome screen in Figure 21 Numbi Ic x 0 0 Z 0 0 GPS W 50 02 27 684 GPS L 14 28 35 469 GPS R 268 24 G12 Sat 8 GPS T 10 59 46 RTC T 12 59 46 Set time A ESC X gt Measure Y Show data Figure 21 GPS Menu Description Numbi lc Name of the Locality N Number of measured stations Xx X coordinate related to the first measured station X 0 Y 0 Y Y coordinate related to the first measured station X 0 Y 0 Z altitude GPS W Latitude WGS 84 degrees minutes seconds GPSL Longitude WGS 84 degrees minutes seconds GPS R altitude G12 Type of the GPS receiver Sat Number of satellites in use GPS T Absolute GPS time RTCT Local time Set time Use to open Enter Number Menu to set the local time shift from Absolute GPS time Greenwich Mean Time The setting is valid only if hours minutes and seconds are identical ESC takes you back to the previous menu Show data enables you to review already measured data Measure starts measurement of the next station Following Menu will be displayed Figure 22 23 24 Locality 1 Locality2 GPS Logging Locality Numbi x 0 0 Y 0 0 02 Ti H P 751 67 1 90 torr Locality Numbi L Resetting P 751 67 0 0 H P 751 67 1 90 torr Figure 22 PID 118 ppm Meth m Figure 23 A ppm CO2 Figure 24 The X
50. w for saving changes and follow the instructions on the screen to return to the Main Menu Save Configuration Figure 7 System Configuration File If you entered the System Configuration File using the option Open LOCALITY 1 Figure 5 the new locality for example DESIREE is linked with LOCALITY 1 Name of this locality will be displayed after the option LOCALITY 1 in the Main Menu Figure 8 If you entered System Configuration File using the option Open LOCALITY 2 the new locality is linked with LOCALITY 2 Name of the locality will be displayed after the option LOCALITY 2 in the Main Menu In this way you can link one locality with LOCALITY 1 and one locality with LOCALITY 2 By selecting either LOCALITY 1 or LOCALITY 2 in the Main Menu it is easily possible to switch from one locality to another while working in the field This procedure is particularly useful for measurement in 2 different depth levels in the same borehole Measurement from one depth level can be associated with LOCALITY 1 from another depth level with LOCALITY 2 Locality Management kkkkkkkkkkk MAIN MENU kkkkkkkkkkkkkk LOCALITY 1 DESIREE LOCALITY 2 LOCALITY MANAGEMENT CONTINUOUS MEASUREM MONITOR COMMUNICATION SYSTEM CONFIGURATION CALIBRATION FIR 26 IS 8 2S 2 28 2 e E E 2 E E 2 E K OR 2 2K OK OK k OK k k k Main Menu after entering a new locality Figure 8 By selecting LOCALITY 1 DESIREE in the Main Menu you will get directly to th
51. y title e Use to navigate to the completed line e Use to confirm store the title and to return to the System Configuration File OO OO JO P GO AO ACTIOTMUOOW gt SE RE Take EE za NM A m Ge Y Grid Standard This parameter allows automatic data logging according to the allocated X Y Figure 9 Enter Character Menu coordinates and X Y increment all of which can be set to the ENTER NUMBER metric unit Use to switch for the Advanced option XIncrement use to open Enter Number Menu Figure 10 to change the value of the increment The number setting is similar to Enter Character Menu Y Increment as above 0 1 2 3 4 5 6 7 8 9 Figure 10 Enter Number Menu Locality Management System Configuration File GPS logging This option allows GPS coordinates to be introduced automatically The coordinates of any location are obtained from an external GPS receiver opens a menu with a selection of GPS receivers Figure 11 Select GPS receiver G8 G12 SENSOR 2 G 24 DIM XXX Figure 11 Selection of GPS receivers Contfirms the selected receiver and returns to the System Configuration Menu v Group measurement NO For a standard survey Zeroing cycle is performed automatically before each measurement using ambient fresh air This mode is suitable for most environments YES When measuring in a contaminated atmosphere for example contaminated factory hall where it is not pos
Download Pdf Manuals
Related Search