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US300PM Ultrasonic Flowmeter, Portable Type

1. a n Side view of a pipe with fastened transducers Sectional view of a pipe with fastened transducers 4 DS z Top view of the retaining clip Side view of the retaining clip IM 01G05B02 01E 1st Edition Nov 5 2001 XX 31 5 Basic Measurement e Insert the retaining clip into the groove on the top of the transducer and secure it using the knurled screw e Apply some acoustic coupling compound to the contact surface of the transducer Place the trans ducer on the pipe and press it firmly e Take the spring end of the chain in the hand and insert the ball at its extremity in the vertical slot of pipe it is recommended to slip the cable of the upper transducer under the chain in order to free it from mechanical strain e Pull the chain firmly and insert it in the lateral slot of the retaining clip There should be no air or air pockets between transducer surface and pipe wall e Mount the second transducer in the same way Using a ruler adjust the transducer distance to the distance suggested by US300PM 5 7 2 2 Extension of the Ball Chain e Take the fastening clip of the extension between thumb and index finger e Hold the loose end of the ball chain in your other hand e Put the last ball part into the bigger opening of the fastening clip Press the chain bridge through the free slot in order to move the last ball inside the fastening clip Reverse the sequence of these operations t
2. Model Suffix code Specification US300PM Ultrasonic flowmeter portable type Output A0 No current output Pe 5 een re aC ers Z Power Supply japan Adapter and AC 2 USA ca b le 3 Europe inne 2 Always 2 N Always N Option PU1 One binary output pulse or alarm OC PU2 Two binary outputs pulse q y to 1 kHz Data characters Wall thickness probe 20 to 60 C Wall thickness probe 0 to 200 C logging extension 100 000 values Tag number on the nameplate in the name plate label maximum 16 Note Option PU1 and PU2 are exclusive Optional extension cable for portable type Model Suffix Specification code US300PC Optional extension cable for portable type Length A005 Cable length 5 m A010 Cable length 10 m A020 Cable length 20 m IM 01G05B02 01E 1st Edition Nov 5 2001 XX Transducers for portable type Model Suffix code Specification US300PT Transducers for portable type Usage G W General purpose IP65 Waterproof IP67 Pipe Size BG Fluid Tem perature a o CG CH JUNIA a Cable Medium amp General Medium amp Higa with 3 m cable Large amp General with 4 4 m cable Large amp High with 4 4 m cable Very large amp General with 12 m cable B Medium size 25 to 400 mm C Large size 100 to 2500 mm D Very large 2000 to 6500
3. 15 4 Activation of an Analogue Output 15 4 1 Activation of a Current Output The display CURRI ENT LOOP only appears in program branch OUTPUT OPTIONS if a cur rent output has been installed Current Loop Tl no gt YES lt Select the OUTPUT OPTIONS program branch for the channel assigned to the output you want to activate In the CURRENT LOOP display select YES to activate the current output 15 4 2 Activation of a Frequency Output Note The display FRE QUE NCY OUTPUT only appears in the program branch OUTPUT OP TIONS if a frequency output has been installed Frequency Output Fl no gt YES Select the OUTPUT OPTIONS program branch for the channel assigned to the output you want to activate In the FREQUENCY OUTPUT display select YES to acti vate the frequency output 15 4 3 Scale Values for Analogue Outputs After you have activated an output in the program branch OUTPUT OPTIONS US300PM will ask for the scale values for the source item zZzero Scale Val 0 00 m3 h Full Scale Val 300 00 m3 h 100 Enter as ZERO SCALE VALUE the lowest measured value expected The displayed measuring unit is the unit of the selected output source item The zero scale value corresponds to the lower limit of the output range Enter as FULL SCALE VALUE the highest measured value expected The full scale value corresponds to the upper limit of
4. cceeeeeeeeee 54 129 storage of the sound velocity eee 55 storage of the totalizer 0 0 cceeeeceeeeeeeeeees 54 storage late iwediiewie etn 50 Switching off automatic eeeeeeeeeteeeeeenees 20 Switching ON OFF eieiei 15 WADIGS 2c te eiye ke eaae aea aa tiai 125 Temperature of the medium 28 Time Setting e e e er r E eee teed 71 Time programmable measurement COUNLGOWN ac s ccceeeisrs censctenivsth pehaainctesesbenteeanneees 89 d ratloi s ede cance tee eneee te bes edit ee aaiae 87 enabling and disabling 85 Start ANd SOP eee ate ana ina 89 start time eea aa 85 CoJo Aaa e DAE E EE A EEAS 86 Toggling between the channels eee 38 Totalizers overflow Transducer distance display eeeeeeeeeeeeeee 39 Transducer parameters 28 130 Means dUCETS in n eea aeaa ia 14 distance between transducers 30 MOUNTING es heeds eae 31 POSITIONING kisii reinii 33 Transit paths rsercinsitspicsnsoineiski sopining 29 Troubleshooting eeeeeeeereerreenen 109 Unit of measurement cccceeeeceeeeeeeeeteeeeeeeees 37 Unpacking renren niin nai 8 User area partitio ss sccacsecscees cerksiesceseigeiccnastcactesteuenenssese 65 User materials ccccccceceseceeceeeeeeeeeeeeeeeeeeeees 67 User Media iieii eeii 67 Velocity limiti niian nn 43 Wall thickness 0 ccccecccceececeeeeeeeeeaeeeeeeeeeeeeeaees 25 Wall thickness measurem
5. Maximal line length 255 characters 8 5 Serial Output Settings Some format settings of the serial output can be edited in the program branch SPECIAL FUNCTION SYSTEM SETTINGS SERIAL TRANSMIS This makes it possible for you to adapt the output de pending on whether the data is being sent to a PC or transmitted to a serial printer You can decide if spaces should be killed or not and decide which character should be used as decimal point and as column separator 52 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 8 Storage and Output of Measured Values Ps TARGET PC TARGET External printer ON is recommended space OFF is recommended as all SFR kill spaces characters will not be transmitted measured values of a column during the export of numerical will be printed one below the gt OFF lt on values In this way the file size other can be considerably reduced i e shorter transmission time Which decimal separator is This setting is of a country ER decimalpoint used for floating point variables specific nature point or comma depends on Mer ae ae the country specific settings for decimal numbers TAB increases the total width of a line depending on how the tabulator is set on the printer Which character should be used TR for separating columns semico BR Coe S beret j lon or tabulator depends on the eet gt TAB lt requirements of the PC pro gram
6. The display STORE PAR TO appears and offers a Store Par to 2 choice of 14 parameter records PAR RECORD 01 to Par Record 01 PAR RECORD 14 Select a parameter record and con i firm by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 57 9 Working with Parameter Records If parameters are already saved in the selected pa rameter record US300PM asks if you want to overwrite them Select YES to overwrite the parameters or NO to select another parameter record Confirm by pressing ENTER Overwrite no 9 2 Loading Parameter Records Parameter records stored in memory can be easily be loaded and used for measurement Select the program branch PARAMETER and press EN TER gt PAR lt mea opt sf Parameter Select the channel on which you want to load a pa Parameter g rameter record then press ENTER for Channel A In the next display select the parameter record to be Parameter from loaded Par Record 01 Confirm by pressing ENTER Select YES if you wish to edit the parameters of the se Edit Parameters lected record gt NO lt yes If you select NO the main menu is displayed and you can start measuring 9 3 Deletion of Parameter Records In the program branch SPECIAL FUNCTION select the Special Funct DELETE PAR REC option and press ENTER Delete Par Rec If no parameter records have been stored an error NO PAR STORED
7. The parameter record for the flow measurement will not be influenced with the exception of the possible change of the measured pipe wall thickness IM 01G05B02 01E 1st Edition Nov 5 2001 XX 79 12 Wall Thickness Measurement 12 2 Parameter Input 12 2 1 Parameter Input for Wall Thickness Measurement In order to determine the wall thickness the sound velocity of the material must be entered In the program branch OUTPUT OPTIONS select the Physic Quant af physical quantity WALL THICKNESS for the channel on Wall thickness which the probe is connected Confirm by pressing EN TER US300PM asks for using the SERIAL OUTPUT option Serial Output Select YES or NO and confirm by pressing ENTER The gt NO lt yes main menu will appear Select in the PIPE MATERIAL selection list of the pro Pipe Material i gram branch PARAMETER the material the pipe you Carbon Steel want to measure is made of If the material is not part of the list select OTHER MATERIAL Confirm by pressing ENTER The longitudinal sound velocity in the selected material c LONGITUDINAL is displayed as a suggestion If you have selected OTHER MATERIAL in the previous display 0 0 m s is A m roe AS displayed Edit the velocity if necessary The maximal sound velocity that can be entered is 20 000 m s Confirm by pressing ENTER The measurement will only start if a c LONGITUDINAL other than zero
8. IM 01G05B02 01E 1st Edition Nov 5 2001 XX 125 Reference Table 2 Typical roughness coefficients for pipes For your convenience we have already pre programmed common roughness coefficients for pipe ma terials The data are based upon experience with measurements performed with these pipe materials Pipe wall material Absolute Pipe wall material Absolute roughness um roughness um Drawn pipes of non ferrous metal 1 5 glass plastics and light metal Cast iron pipes Drawn steel pipes bitumen lining fine planed polished surface new without lining planed surface rusted rough planed surface encrusted Welded steel pipes new long usage cleaned lightly and evenly rusted heavily encrusted Table 3 Typical properties of media at T 20 C and p 1 bar T Gila ard mm s g cm 50 Goal OP ma so im J moense 703011000 C ore 126 IM 01G05B02 01E 1st Edition Nov 5 2001 XX Reference Sound velocity m s Kinematic viscosity Density a a Milk 0 3 fat C a A T Quintolubric 200 526 R22 Freon 563 Hydrochloride acid 37 1520 1 200 1550 1 000 Shell Thermina B Toluene SiS s o o o o Vinyl chloride oo o oo o oo Table 4 Chemicals to which Autotex keypad is resistant Autotex is resistant acc to DIN 42 115 part 2 to following chemicals for a contact time of more than 24 hours without visible modification Sulphuric acid lt 10 Ammonia lt 40 Natronlauge lt 40 Potassium hy
9. Should you have entered the HotCode for the language version incorrectly switch the unit off by pressing BRK three times then on again Enter the HotCode again 4 6 BATTERY LED OFF The flowmeter works under normal operating conditions battery or ex ternal power supply LED on Battery is being charged LED flashes long intervals Battery voltage is insufficient Measurements are impossible Battery set must be charged or changed LED flashes short intervals Error during battery charging e g no external voltage present 4 7 SIGNAL LED OFF The flowmeter works offline LED green on The signal received by the channel is sufficient for measurements LED red on The signal received by the channel is insufficient for measurements IM 01G05B02 01E 1st Edition Nov 5 2001 XX 19 4 Getting Started 4 8 Automatic Power Off When the flowmeter is battery operated an automatic power off function is activated If the flowmeter has been expecting an action key press or reception of a character from a PC on the RS232 inter face for a period of 10 minutes an automatic switching off process will be activated The flowmeter won t be switched off during measurement unless the batteries run low During measurement means here that the measuring process has been started by entering the precise transducer distance and pressing ENTER no matter whether this measuring process is successful or not Upon activation of the power off process an
10. 6 increases contrast eg decreases contrast 2 minimum contrast 5 medium contrast ge 8 maximum contrast The contrast will be reset to medium after a coldstart 11 5 Instrument Information Special Funct Instrum Inform 76 Select SPECIAL FUNCTION INSTRUM INFORM to obtain information about the flowmeter e the type designation and the factory number of your instrument e the memory still available for data storage e the version of the firmware Confirm by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 11 System Settings The type designation and the serial number of your in US300PM 00000999 strument are given on the first line Here Type designa tion US300PM and factory number 00000999 The memory still available for data storage is given on the second line Here 18327 measured values can still be stored FREE 18327 Confirm by pressing ENTER The type designation and the serial number of your in US300PM 00000999 strument are given again on the first line V 5 xx 11 11 00 The firmware version and its date are given on the sec ond line Here Version V5 xx from 11 11 2000 Confirm by pressing ENTER 11 6 Charging the Battery The chargeable NiCd batteries guarantee an operating time of approximately 14 hours The flowmeter can also operate from an external power supply of 100 to 240 VAC The power adapter battery charg ing unit can be used f
11. Alarms of type NON HOLD will switch in their activated state for about 1 second when the switching condition is met Alarms with switching condition QUANTITY will immediately switch in their activated state when the to talizer value reaches or exceeds the limit i Flow rate 0 gt Alarms with switching condition gt gt sign change and type NON HOLD will switch in their activated state for about 1 second with any change of flow direction Relay type NON HOLDING JUL pA approx 1s IM 01G05B02 01E 1st Edition Nov 5 2001 XX 105 15 Process Outputs Alarms with switching condition gt gt sign Relay type HOLDING change and type HOLD will switch in their ac tivated state with the first change of flow direc LE az l tion and stay in this state A x fq manual switching of They can be switched back by pressing e the relay Alarms with switching condition ERROR will only switch in their activated state after several unsuccess ful measuring attempts SIGNAL LED lights red Therefore typical short term disturbances of the measurement as for example air bubble caused by pumps being switched on will not activate the alarm If the alarms are of type NON HOLD they will switch back as soon as a valid measured value is obtained SIGNAL LED lights green If there is an internal adaptation to changing measuring conditions e g to a considerable rise of the medium temperature the alarm
12. Chapter 4 Getting Started This chapter describes how to use the keyboard and display on the front panel and the functions of each key Chapter 5 Basic Measurement This chapter describes how to start the basic measurement including the process of installing the transducers and setting the parameters Chapter 6 Displaying the Measured Values This chapter describes how to display the measured values or some other information on the display It also describes how to change the physical quantity and the unit for the measurement Chapter 7 Advanced Measuring Functions This chapter describes some advanced measuring functions like flow totalizer cut off flow the calcula tion using the measured value of the two channels Chapter 8 Storage and Output of Measured Values This chapter describes how to store the measured values in the internal memories and how to output the measured results to a PC or a serial printer Chapter 9 Working with Parameter Records This chapter describes how to define the specific measuring point data as the parameter records which is for the convenience of your specific measuring tasks Chapter 10 Libraries IM 01G05B02 01E 1st Edition Nov 5 2001 XX 4 1 Introduction This chapter describes how to define the specific parameters for materials and media It describes how to make a own list of the materials and media for the convenience of your specific measuring tasks Chapter 11 System Settings
13. Confirm by pressing ENTER At the end of the edition of the loaded parameters US300PM asks you under which ID number the edited parameters must be stored Enter an ID number 1 to 80 Confirm by pressing ENTER 61 9 Working with Parameter Records If parameters are already saved in the selected short record US300PM asks if you want to overwrite them Select YES to overwrite the parameters or No to enter gt NO lt yes another ID number Confirm by pressing ENTER 01 Overwrite Enter a name for the short record In the program Input name branch SPECIAL FUNCTION SYSTEM SETTINGS 01 DIALOGUES MENUS MEAS POINT NO you can choose if the name should be entered alpha numerically or as key sequence Confirm by pressing ENTER The parameters are saved under the selected ID number 62 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 10 Libraries 10 Libraries The internal data bank of the instrument contains the properties of more than 20 different materials pipe material lining and more than 40 different media It is possible to select the materials and fluids displayed in the selection lists of the program branch PARAMETER pipe material lining medium You can thus adapt the list to your specific measuring tasks and the shorter selection lists make your work more efficient see section 110 1 An integrated coefficient storage user area allows you to
14. Repeat steps described in section 5 6 and 5 7 ifor all channels on which you want to measure When ae the precise transducer distance has been entered for all these channels the measurement will be automatically activated You can press ENTER to return to the bar graph dis A Volume Flow play 54 5 m3 h US300PM undertakes measurements on all activated measuring channels in a quasi parallel manner The multiplexer switches every second between the activated channels to measure the flow The SIGNAL LED of an activated channel flashes as the measurement takes place All process outputs as well as the serial interface continuously get the measuring results of the assigned channel The results are displayed according to the actually selected output options see chapter 16 1 Default setting is the display of volume flow rate in m h Chapter 6 describes the selection of the values to be displayed and the setting of the output options Advanced measuring functions are described in chapter 7 34 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement 5 9 Stopping the Measurement You can stop the measurement on all activated measuring channels at any time by pressing BRK Attention Be careful not to interrupt an ongoing measurement by inadvertently pressing BRK 5 10 Recognition of Flow Direction The direction of flow in the pipe can be recognized with the help of the displayed Volume Flow in conjunction w
15. US300PM can be fitted with a memory expansion Contact your distributor for details 13 4 1 The Countdown Runs US300PM indicates that the countdown is running The WAIT TO START AT upper line of the display shows the current status wait 30 04 04 15 00 ing for the start time or the current time alternately The i i lower line shows the start time Use key 3 to switch between the display of the start 29 04 15 18 44 time and the display of the time remaining before meas 00h 29m 10s urement start S on the lower line At any time during the countdown you can check if a stop time has been programmed Press key 9 to display information on the upper line This message appears on the upper line when no stop NO STOP D time has been programmed This message shows that US300PM will automatically STOP MEASURE AT end the measurement at the displayed time 30 04 08 15 00 Press key 3 now to display the stop date and time or DISP STOP MEASURE AT the programmed duration of the measurement 4 M Vv 04h 00m 00s 13 4 2 Start Stop of Measurement When the defined start time is reached US300PM continues the previously interrupted measurement During the measurement you can check if a stop time has been programmed In the volume flow display press key Q once or sev Volume Flow eral times 35 62 m3 h Additional information will be displayed in the upper line
16. meter on Connect the transducers to the flowmeter if they are not already connected Turn the flowmeter on In the main menu select the program branch PARAME gt PAR lt mea opt sf TER and press ENTER Parameter Select the channel for which you want to set the pa Parameter rs rameters i and press ENTER for Channel A If the display PARAMETER FROM appears at this point at least a parameter record has been stored and can be recalled now A parameter record is a set of all the data required to perform a certain measuring task the pipe parameters medium parameters and output options You can create a pa rameter record for each of your measuring tasks For more information on this subject see chapter 9 5 3 1 Pipe Outer Diameter Circumference Enter the outer diameter of the pipe Outer Diameter Confirm your entry or the displayed value by pressing 100 0 mm ENTER It is possible to change this menu in order to enter the pipe circumference instead of the diameter This pa is coldstart resistant and can be made in the program branch SPECIAL FUNCTION See 9 3 2 Wall Thickness Enter the pipe wall thickness The range of possible Wall Thickness values depends on the transducer specifications De fault value for this parameter is 3 0 mm Press ENTER 30 mm s to confirm your entry IM 01G05B02 01E 1st Edition Nov 5 2001 XX 25 5 Basic Measurement Attention US300PM calculates the inn
17. no gt YES lt 10 Libraries Select YES to save all changes made in the selection list or NO to leave the edition menu without saving Confirm by pressing ENTER 10 1 1 Displaying a Selection List Material list f gt Show list Current list gt Carbon Steel Current list Other Material Select SHOW LIST and press ENTER to display the se lection list as it would appear in the program branch PARAMETER The current selection list is displayed as a scroll list on the second line of the screen User materials media are always part of the current user defined selection list Press ENTER to leave the current selection list and re turn to the selection list edition menu 10 1 2 Adding a Material Medium to the Current List Material list gt Add Material gt Add Material Carbon Steel To add a material medium to the current selection list select ADD MATERIAL or ADD MEDIUM Confirm by pressing ENTER US300PM displays as a scroll list on the second line all materials media which are not in the current selection list Select the material medium to be added and press EN TER The material medium is added to the selection list 10 1 3 Deleting a Material Medium from the Current List Material list gt Remove Material 64 To remove a material or a medium from the selection list select REMOVE MATERIAL or REMOVE MEDIUM Confirm by pre
18. the internal memory is full and no output option other than storing has been selected STOP DATE TIME Youcan define the date and time of the automatic stop STOP DURATION You can define the duration of the measurement US300PM will then calculate when the measurement should be stopped START DURATION STOP 13 3 1 Entering the Stop Time If you have selected the option STOP DATE AND TIME in the previous step enter the date and time for the automatic stop of the measurement in the same way as the start time Confirm each value with ENTER US300PM will check if date and time entered are valid and will not accept a stop time that is before the previously entered start time As soon as you have entered a valid stop US300PM displays again the start and the stop time In our example US300PM starts the measurement on 30 04 2001 at 04 15 will measure for 4 hours and automatically stop the measurement at 08 15 5 Using key 9 or 3 it is possible to switch between M 30 04 01 04 15 the display of the stop time and the display of the dura AV 04h 00m 00s tion of measurement 4W on the lower display line Press any key except BRK to go to the next option of the MEASURING program branch 13 3 2 Entering the Duration If you have selected the option STOP DURATION in Duration 04h 00m the previous step enter the duration of the measure A ment in the same way as the start time The maximu
19. the measuring quantity cannot be determined e The red SIGNAL LED is lighted e The display shows a behind the unit of measurement In case of a normal error a appears 7 4 Cut off Flow The cut off flow function automatically sets all measured flow velocities falling below a certain value to 0 zero All values derived from this flow velocity are equally set to zero Default cut off value is 5 cm s Sign dependent and absolute cut off values are possible The largest cut off value which can be set is 12 7 cm s The cut off value can be set in the program branch SPECIAL FUNCTION SYSTEM SETTINGS MEASURING This setting is cold start resistant If you select ABSOLUTE the user defined cut off value Cut off Flow will not depend on the sign identifying the direction of flow There is only one limit to be set The absolute value of the measured value will be compared with the cut off value absolute gt SIGN lt If you select STGN the user defined cut off value will depend on the sign identifying the direction of flow Two independent limits can be entered for positive and negative flow velocities IM 01G05B02 01E 1st Edition Nov 5 2001 XX 43 7 Advanced Measuring Functions If you select FACTORY US300PM will use the factory Cut off Flow default setting of 5 cm s for the cut off value factory gt USI Select USER to define you own cut off Confirm by pressing ENT
20. 8 8 Available Memory EE 9 Working with Parameter Records 57 9 1 Saving Parametersina 222222222 i ___ Parameter Record 571 9 2 Loading Parameter Records 58 9 3 Deletion of Parameter Records 1177177 58 9 4 ParaPool Function 6g 10 1 Editing the Selection Lists 631 10 2 Defining New Materials and Media 651 11 System Settings TF 11 1 Setting the Internal Clock 1 l 111 2 Settings for the Dialogues and Menus _ 72 11 3 Measurement Settings ___ 74i 11 4 Setting the Contrast aaneen 76 1719 Instrument Information 777 1 76 11 6 Charging the Battery 77 12 Wall Thickness Measurement ________79 12 1 Activating the WIM Mode 79 12 2 Parameter Input 1 80 112 3 Measurement Ot 13 Time programmable Measurement 85 13 1 Enabling and Disabling __________ 85 13 2 Input of the Start Time ewe OD 13 3 Input of the Stop Time 86 13 4 Measuring with the 07 twa time programmable Mode 88 13 5 Storage of Measured Values L L3 90 13 6 Online Output___ 901 14 Measuring the Sound Velocity ________ ofthe Medium 91 14 1 Displayed Information _____________92i 115 Process Outputs 9S 15 1 Installation of a Process Output 951 9 2 Defining the Error Value Delay 99 115 3 Circuits of Process Outputs 99 15 4 Activation of an Analogue Output ____ 100 15 5 Activation ofa Pulse Output ________ 101 15 6 Activation of an Alarm Output 401 15 7 Deactivating an Alarm Output 1777777 TO7 16 Troubleshooting 193
21. Connection e Pull up the socket cover of the channel on which you want to connect the transducers e Insert the connector of the transducer cable in the socket The red point on the connector should face the red marking on the socket CHANNEL A _ aBa SIGNAL r 3 5 Power Supply The chargeable NiCd batteries guarantee an operating time of approximately 14 hours If required the flowmeter can operate from an external power supply of 100 to 240 VAC The power adapter battery charging unit can be used for this purpose Attention The power adapter battery charging unit is not moisture proof Use it only in dry rooms 14 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 4 Getting Started 4 Getting Started 4 1 Switching ON OFF ON Cc Press this key to switch US300PM ON 3x OFF BRK Pressing BRK three times will switch US300PM OFF After US300PM has been switched on a message will appear indicating which transducer was detected on which channel The serial number of the instrument is US300PM 00000999 then displayed for a second or two YOKOGAWA Note No data can be entered while the factory number is displayed After initialization the main menu in the actually se gt PAR lt mea opt sf lected language version appears Parameter US300PM can be operated in the language of your choice Please refer to section 4 5 1 4 2 The Keyboard The US300PM s operator interface consists of a keyboard and a two line dis
22. This chapter describes the settings on the system functions If you would like to get the information and to activate some additional functions of the product please refer to this chapter Chapter 12 Wall Thickness Measurement This chapter describes how to measure the wall thickness or the longitudinal sound velocity in the pipe material using the optional measurement probe Chapter 13 Time programmable Measurement This chapter describes how to use timer start and stop function for the measurement Chapter 14 Measuring the Sound Velocity of the Medium This chapter describes how to measure the sound velocity in the medium and how to store it as one of the medium parameters for the flow measurement refer to section 5 3 Chapter 15 Process Outputs This chapter describes how to use the process outputs equipped in the product The current outputs frequency output or binary outputs for pulse or alarm come equipped with the product when you specified in your order These outputs must be installed and activated by the software settings when you use them The description here contains how to define the types and properties for the alarm out puts Chapter 16 Troubleshooting This chapter describes the troubleshooting of the product The description here contains the overview of error messages you might encounter and how to deal with them Appendix A Standard Specifications The tables and the figures for the standard specifications of
23. as illustrated below Note The accuracy of the distance suggested by US300PM depends on the accuracy of both the pipe and medium parameters entered 30 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement For very small pipes a negative transducer distance is possible as illustrated in the following scheme Transducer distance gt 0 Transducer distance gt 0 transducer distance lt 0 reflection mode diagonal mode diagonal mode gt gt a r re a Soe G g 5 7 2 Mounting of the Transducers Always mount the transducers so that the front edges gt gt N are opposite to each other The engravings on the top SS of the transducers should form an arrow as illustrated beside In order to obtain maximal acoustic contact between the pipe and the transducers pay attention to the following points e Rust or other deposits absorb the sound signals Clean the pipe at the emplacement where you plan to mount the transducers Remove rust or loose paint Grind off any thick layer of paint e Always apply a bead of acoustic coupling compound lengthwise down the center of the contact surface of the transducers e There should be no air or air pockets between transducer surface and pipe wall Make sure that the mounting fixture applies the necessary pressure on the transducers 5 7 2 1 Mounting with Chains o G
24. 25 m s NEXT 7 Press key to select the next activated channel for displaying US300PM displays the measured values as configurated in the OUTPUT OPTIONS program branch see section 6 1 for the selected channel 6 3 Configuration of the Display US300PM gives the option of displaying two of the measured values one on each line of the display and of configuring the display readings according to your requirements You can change the displayed values independently and without interfering with the ongoing meas urement The changes have no influence on the total counters the storage of measured values the operation of the process interfaces etc 38 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 6 Displaying the Measured Values Following information can be displayed on the first line of the display e Designation of the quantity of measurement actually being measured and recorded e Totalizer values if activated e the date and time at which the memory will be full e the operating mode e the transducer distance see section 6 4 e the reckoning function if activated e the time remaining until the automatic stop of a programmed measurement e the state of the alarms if any alarm output is activated and the display of the alarm s state is en abled see section 115 6 e the operating mode Use key 9 to scroll through the different displays of the first line while measurement is going on Following information can
25. CHANNEL B a SIGNAL Emp g BATTERY l Connection port Status indica for flow trans tors see sec ducers of tions 6 and channel A or 7 wall thickness sensor 3 4 2 Rear Panel Serial interface gt Connection port for flow transducers of channel B or wall thickness sensor Process outputs see chapter 15 E gt Keyboard __ see section 4 2 lt Name plate CURRENT OUTPUT 11 4 to 20 mA scalable range ULTRASONIC FLOWMETER Bea US300PM 02530100 C E n o YOKOGAWA Made in Germany amp Battery Connection socket for compartment power adapter battery charging unit cover IM 01G05B02 01E 1st Edition Nov 5 2001 XX 13 3 The Flowmeter 3 4 3 The Transducers The two transducers are connected to the instrument by a round connector There is a different engraving on the top of each transducer The transducers are mounted correctly if the engravings on the two transducers are forming an arrow together The transducer cables should then show in opposite directions Later the arrow in conjunction with the indicated measured value will help you to determine the direc tion of flow Attention The engravings should also form an arrow if the two transducers are mounted on oppo site sides of the pipe wall
26. Channel A Confirm by pressing ENTER In the STORAGE RATE display select one of the sug g gested storage rate If the desired rate doesn t appear select EXTRA press ENTER and enter the storage rate manually Values between 1 and 43200 seconds 12 hours are possible Storage Rate once per 10 sec Confirm by pressing ENTER 8 1 3 Identification of the Measuring Point At the beginning of measurement US300PM will now ask you to identify the measuring point Meas Point No Enter the measuring point designation IVE Confirm by pressing ENTER There are two input modes for the designation the plain text mode example MS PK20 e and the numerical mode decimal point and or slash are also permitted example 18 05 06 The input mode can be set in the program branch SPECIAL FUNCTION see section 11 2 3 If arrows appear in the MEAS POINT NO display the text input mode is activated If not only numbers decimal point and dash can be entered When the measurement is started US300PM will store the designation and the parameters of the measuring point together with the measured values 8 1 4 Measurement When measuring with activated data logger function DATA MEMORY this error message will appear in case of a memory overflow Confirm the message by pressing ENTER The main menu will appear OVERFLOW 50 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 8 Storage and Output o
27. Impulse output without sign consideration Impulse output for positive measured values Impulse output for negative measured values Miscellaneous Soundspeed fluid a of the sound velocity of the fluid see chapter 114 Signal Output of the amplitude of the signal of a measuring channel 15 1 1 Output Range If you are configurating an analogue output US300PM now asks you for the output range Select one of the ranges offered in the scroll list or OTHER RANGE to en ter manually the output range Il Output ranger 4 20 mA If you have selectes OTHER RANGE enter the minimal Il Output MIN ane value OUTPUT MIN and the maximal output 10 0 mA value OUTPUT MAX Confirm each value by pressing ENTER Il Output MAX 11 0 mA The entered output range should cover at least 10 of Il Output MAX the full physical output range IMAX IMIN 2 2MA for a 20 mA current output for example If this is not the bee MINIMAL case US300PM will display the smallest maximal out put value OUTPUT MAX possible for the entered minimal output value OUTPUT MIN 96 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 15 Process Outputs 15 1 2 Output Value in Case of Error In the further dialogue you can select that value which US300PM shall output in case the assigned source item cannot be measured or located For example US300PM might not be capable to measure the flow during a certain period of time because of the presence of gas bubbles i
28. Input Error messages F1 and F2 Reason Outer Diameter The entered outer diameter value is not compatible with the in 25 2 MINIMAL ner diameter range of the connected transducers Corrective action If the entered outer diameter is incorrect enter the correct value in the program branch PARAMETER Outer Diameter 3100 0 MAXIMUM If the outer diameter really surpasses the given limit consult your local Yokogawa sales office for advice Error message F3 Reason Inner Diameter The inner diameter which is calculated by US300PM from the Too Small entries for wall thickness and outside diameter is smaller than the minimum value allowed IM 01G05B02 01E 1st Edition Nov 5 2001 XX 109 16 Troubleshooting Corrective action Check if the values of outside pipe diameter and wall thickness are correct in program branch PARAMETER You might have corrected the outside pipe diameter without tak ing the wall thickness into consideration Error message F4 Reason par gt MEA lt opt sf There are parameters missing in program branch PARAME NO DATA TER no complete parameter record exists Corrective action Enter any parameters not yet entered Error message F5 Reason NO PARAMETER No complete parameter record exists Storage is impossible Store Par Rec Corrective action Enter the missing parameters 16 1 2 Errors during Measurement Error message
29. Q via a process output will not be valid after the first overflow wrapping of one of the respective totalizers An alarm output should be set to FUNC QUANTITY and TYP HOLD if you want it to signalize the overflow of a totalizer 7 3 Upper Limit for Flow Velocities A single outlier caused by heavily disturbed surroundings can appear in flow measured values This will affect all measuring quantities derived from the flow measured values Such outliers are unsuitable for integral quantities pulse outputs e g You can predefine an upper limit for the flow velocity The measuring process will then ignore all measured flow velocities bigger than this limit and will mark them as outlier invalid measured value or measurement impossible The upper limit for the flow velocity can be set in program branch SPECIAL FUNCTION SYSTEM SETTINGS MEASURING This setting is cold start resistant In program branch SPECIAL FUNCTION SYSTEM Velocity limit SETTINGS MEASURING select the VELOCITY LIMIT option Enter the upper velocity limit Values be tween 0 1 and 25 5 m s are accepted Entering 0 0 switches off the test for outliers Gn m s Confirm by pressing ENTER When the test is activated velocity limit gt 0 0 m s every measured flow velocity will be compared with the entered upper velocity limit If the flow velocity is bigger than the limit e The flow velocity will be marked invalid
30. acoustic signal is emitted and following warning is dis played While the countdown runs you can press any key to avoid switching off If this information appears after US300PM has been switched ON again after automatically switching off it indicates that the unit has switched itself off because of low batteries Note The automatic power off function is not activated when the instrument works with an ex ternal power supply 20 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement 5 Basic Measurement In a first step select the measuring point according to the recommendations given in section 514 mak ing sure that the temperature at the selected location is within the operating temperature range of the transducers see Standard Specifications in Appendix A Select afterward the location of the instrument within cable reach of the measuring point Make sure that the temperature at the selected location is within the operating temperature range of the transmit ter see Standard Specifications in Appendix A Enter the parameters of the pipe and of the medium After that the transducers must be mounted and positionned Measurement can then be started 5 1 Selection of the Measuring Point The correct selection of the measuring point is crucial for achieving reliable measurements and a high accuracy Basically measurement must take place on a pipe e in which sound can propagate see sec
31. be determined by Yokogawa based on our investigation e The Purchaser shall bear the responsibility for repair costs even during the warranty period if the malfunction is due to Improper and or inadequate maintenance by the purchaser Failure or damage due to improper handling use or storage which is out of design conditions Use of the product in question in a location not conforming to the standards specified by Yoko gawa or due to improper maintenance of the installation location Failure or damage due to modification or repair by any party except Yokogawa or an approved representative of Yokogawa Malfunction or damage from improper relocation of the product in question after delivery Reason of force majeure such as fires earthquakes storms floods thunder lightening or other natural disasters or disturbances riots warfare or radioactive contamination 1 4 How to Use this Manual 1 4 1 Construction of this Manual Chapter 1 Introduction This chapter describes how to use this manual and the meaning of the precautions in this manual It also describes the warranty for the product Chapter 2 Handling Precautions This chapter describes how to unpack and check the delivered goods and also daily handling precau tions for the product and accessories Chapter 3 The Flowmeter This chapter describes the principle and the feature of this product It also tells you the names of each part of the product
32. be entered IM 01G05B02 01E 1st Edition Nov 5 2001 XX 27 5 Basic Measurement Enter the minimum and maximum values of the sound c Medium MIN velocity for the medium you want to measure in m s 1400 0 m s Confirm your entries by pressing ENTER Note US300PM accepts sound velocities between 800 0 and 3500 0 m s 5 4 2 Kinematic Viscosity The kinematic viscosity influences the flow profile of the liquid US300PM uses the entered value of the kinematic viscosity as well as other parameters for the profile correction Enter the kinematic viscosity of the medium Values be Kinem Viscosity tween 0 01 and 30 000 00 mm s are accepted 1 00 mm2 s Confirm by pressing ENTER 5 4 3 Density The input of the density of the medium is only necessary when mass flow has been selected as an output option see chapter 6 1 Mass flow is not measured directly US300PM obtains the result for mass flow by multi plying volume flow with the density value which has been entered Enter the density of the medium Values between 0 10 Density and 20 00 g cm are accepted 1 00 g cm3 Confirm your entry or the displayed value by pressing ENTER 5 4 4 Medium Temperature US300PM needs the medium temperature for the calculation of the distance between the transducers distance suggested at the beginning of measurement US300PM also uses the temperature of the medium for correcting the sound velocity and the viscosity whi
33. cut off flow for negative measured values Should the measured value rise above this threshold a flow velocity of 0 cm s will be used for further calculation You can enter here an upper limit for the flow velocity see section 7 3 Values between 0 1 and 25 5 m s are accepted Entering 0 0 switches off the test for outliers 75 Quant wrapping gt OFF lt on Quantity recall off gt ON lt 11 System Settings Select here the overflow option for the flow totalizers Select ON to work with overflow The totalizer resets automatically to 0 000 as soon as 9999999999 is reached as for a water clock Select OFF to work without overflow The numerical value of the respective totalizer increases up to the in ternal limit of 10 The values are displayed as expo nential numbers 1 00000E10 if necessary In the QUANTITY RECALL display select ON if you wish that the previous numerical values of the total izers are kept after restart of the measurement Select OFF if you wish the totalizers to be reset to zero after restart of the measurement Note US300PM stores all changes of the SYSTEM SETTINGS now at the end of the dialogue 11 4 Setting the Contrast SYSTEM settings Miscellaneous ETUP DISPLAY lt CONTRAST gt In SPECIAL FUNCTION SYSTEM SETTINGS select MISCELLANEOUS and press ENTER Set the contrast of the display using the following keys
34. enabled The storage of one totalizer halves the total number of measured values which can be internally logged the storage of both totalizers quarters it Example In the program branch SPECIAL FUNCTION US300PM shows that 10 000 measured values can still be stored If the totalizers are activated and only one total value is logged 3 333 data fields are available for storage If both total values are saved 2 000 data storage operations can be made 7 3 Storage of the Amplitude AMPLITUDE entry 54 If you select ON US300PM will store the amplitude of Store Amplitude the measured signal with the measured flow values off gt ON lt when the storage of the measured values is activated Confirm by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 8 Storage and Output of Measured Values 8 7 4 Storage of the Sound Velocity of the Medium In the SPECIAL FUNCTION SYSTEM SETTINGS STORING program branch select the STORE C MEDIUM entry If you select ON US300PM will store the measured Store c Medium sound velocity of the medium with the measured flow values when the storage of the measured values is ac off gt ON lt tivated Confirm by pressing ENTER 8 8 Available Memory US300PM can store a maximum of 100 measuring data sets The number of data sets that can be created depends on the total number of measured values stored in the precedent data sets When all st
35. in ternal clock Can be used with data log ging function or communica tion Internal rechargeable bat tery 6V 4Ah or power sup ply adapter 100 to 240VAC input used also as battery charger Maximum 14 hours less than 15W Safety and EMC standard General safety EMC regulation Operating conditions Ambient ture tempera EN61010 CE marking EN61326 CE marking AS NZS 2064 C Tick mark 10 to 60 deg C e Transducers US300PT Type of usage Dust and water proof Pipe size type Fluid temperature Construction Case material Contact surface material Cable protection material Sensor block size Length of the cable part from sensor block to terminal box Weight General purpose IP65 EN60529 IPx5 JIS C 0920 Waterproof IP67 EN60529 IPx7 JIS C 0920 Medium size 25 to 400 mm Large size 100 to 2500 mm Very large size 2000 to 6500 mm General temp type 30 to 130 deg C High temp type 30 to 200 deg C Stainless steel General temp type PEEK Poly Ether Ether Keton High temp type Polyimid Stainless flexible tube 18 x 42 5 x 21 5 mm _ Me dium pipe size type 30 x 60 x 33 5 mm Large and very large pipe size type 3 0m Medium pipe size type 4 4m Large pipe size type 12 0m Very large pipe size type approx 0 6 kg Medium pipe size type approx 1 2 kg Large pipe size type approx 2 2 kg Very large pipe si
36. in case the mentioned output is al ready installed Select No to edit the configuration of the output Select YES to disable the output US300PM then re turns to the SYSTEM SETTINGS PROCESS OUT PUTS display This display appears in case the mentioned output has not been installed yet Select YES to install the output and proceed to configu ration Select NO to return to the SYSTEM SETTINGS PROCESS OUTPUTS display Select in the scroll list the channel which you want to assign as source channel to the previously selected output Confirm by pressing ENTER 95 15 Process Outputs Select the measuring quantity the source channel Il Source item 2 should transmit to the output source item The avail able source items and their configuration option are de Flow scribed in the table below If you are configurating a binary output only the options LIMIT and IMPULSE are offered Configuration options for the process outputs Source item Available configuration Output options Flow ee Output of the measuring quantity selected in pro gram branch OUTPUT OPTIONS Quantity Q Output of the totalizer for the positive flow direction Q Output of the totalizer for the negative flow direction xO Output of the sum of the totalizers Limit R1 Output of a limit message alarm output R1 R2 Output of a limit message alarm output R2 Output of a limit message alarm output R3 Impulse
37. is always filled e no material deposits are building e no bubbles accumulate even bubble free liquids can form gas pockets at places where the liquid expands e g especially behind pumps and where the cross sectional area of the pipe extends considerably 5 1 2 Undisturbed Flow Profile Many flow elements elbows slide valves valves pumps T sections reducers diffusers etc distort the flow profile in their vicinity The axi symmetrical flow profile needed for correct measurement is no longer given A careful selection of the measuring point makes it possible to reduce the impact of dis turbance sources It is most important that the measuring point is chosen at a sufficient distance from any distur bance sources Only then can it be assumed that the flow profile in the pipe is fully developed IM 01G05B02 01E 1st Edition Nov 5 2001 XX 21 5 Basic Measurement However US300PM will give you meaningful measuring results even under non ideal measuring con ditions with a liquid containing a certain proportion of gas bubbles or solid particles or if the recom mended distances to disturbance sources can not be observed for practical reasons for example Examples In the following examples recommended straight inlet and outlet pipe lengths are given for different types of flow disturbance sources to assist you in selecting the correct measuring point D Nominal pipe diameter at measuring point L Recommended distance Di
38. key or the sign I 0 0 mm key for entering data C Use Y to correct input mistakes Outer Diameter 18 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 4 Getting Started 4 Display of information and error messages Note should be taken if the display contains information or error messages 3100 0 MAXIMUM The messages can be confirmed by pressing ENTER Outer Diameter 4 4 HotCodes A HotCode is a specific key sequence which has to be entered to activate some settings Enter Hot Codes in the main menu just after the flowmeter has been turned on The HotCode itself is not dis played during entry 4 5 Selecting the Language US300PM can be operated in one of the languages listed below The language can be selected with the following HotCodes see section 4 4 Depending on the specific technical characteristics of your instrument some of the languages listed below might not be implemented Language HotCodes 909031 for Dutch 909047 for Norwegian 909033 for French 909048 for Polish 909042 for Czech 909049 for German 909044 for English 909090 for Turkish 909045 for Danish When the last digit has been entered the main menu appears in the selected language and US300PM greets accordingly The selected language remain activated even after switching the unit OFF and ON again The display will appear in the factory preset language version after instrument reset key i Attention i BRK nr combination C
39. means that the measuring channel is activated that the measuring channel is deactivated and e that the measuring channel cannot be activated you did not enter parameters for that channel 4 and 6 Use the keys S 7 to select a measuring channel Rew Press key 8 to activate or deactivate the selected channel A deactivated channel will be ignored during the measurement All parameters entered for this channel will remain unchanged When all channels have been configurated confirm this by pressing ENTER A measuring channel cannot be activated if its parameters are not valid for example if the program branch PARAMETER for the respective measuring channel has not been worked through completely 5 6 Selection of the Sound Path Factor Enter the number of transit paths of the ultrasonic A Sound Path waves through the medium in the pipe 5 NUM Confirm by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 29 5 Basic Measurement A sound path factor of 0 zero is nonsense in terms of physics An odd number of transits diagonal mode requires mounting of the transducers on opposite sides of the pipe see illustration below An even number of transits reflection mode requires mounting of the transducers on the same side of the pipe see illustration below An increased number of transit path means increased accuracy of the measurement However the in creased transit distance also leads
40. message will appear Delete Para Rec Confirm by pressing ENTER If parameter records have been stored the display Delete group DELETE appears Scroll through the list of pa rameter records and select the one you wish to delete Par Record 01 Confirm by pressing ENTER 58 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 9 Working with Parameter Records To avoid accidental deletion of data US300PM asks for Really Delete confirmation to make sure you really want to delete the selected parameter record Confirm your choice by pressing ENTER no gt Y 9 4 ParaPool Function 9 4 1 Features The ParaPool function is characterized by the following features e The parameters of 80 different measuring points can be stored in the unit e Each of the 80 memory locations is identified by a 12 digit name e The stored data can be recalled by entering the identification number of the short record in the pro gram branch PARAMETER Each memory location contains following data for a measuring point the name 12 digit ID of the measuring point memory location the outer diameter of the pipe the wall thickness of the pipe the pipe material the lining material if existing the liner thickness if existing the inner roughness of the pipe the medium flowing in the pipe the approximate temperature of the medium 9 4 2 Enabling Disabling ParaPool Enter HotCode 007021 to enable the Para
41. mm G General temperature 30 to 130 C H High temperature 30 to 200 C Mounting fix S ture Standard type two blocks ruler marked set of including length Magnetic type for gen eral temp 30 to 100 C set of two blocks includ ing ruler marked length Fixing chain B For 25 to 1200 mm Fixing chains 1 x 2 Extensional fixing chains 1 x 2 For 1200 to 3000 mm Fixing chains 1 x 2 Extensional fixing chains 4 x 2 For 3000 to 6500mm Fixing chains 1 x 2 Extensional fixing chains 10 x 2 Acoustic couplant G Option ITTP Transducer tag plate max 16 characters 121 Accessories for the ultrasonic flowmeter US300PM Standard Specifications Accessories Model Description Accessories for the transducers US300PT Accessories Model Description Wall thickness probe USPA301 Wall thickness probe 20 to 60 C Fixing strap USPA302 Wall thickness probe 0 to 200 C USPAO01 Fixing strap of 10 m length USPA002 Fixing strap of 20 m length Fixing clip Power supply adapter USPA311 Power supply adapter AC cable with plug USPA321 Japan USPA322 USA USPA011 Two fixing clips of medium type for pipe size 40 to 100 mm USPA012 Two fixing clips of large type for pipe size 100 to 6500 mm USPA323 Europe Fixing band
42. mm are allowed The wall thickness influences the measuring result in an approximately linear fashion Thus the input of a wall thickness 10 higher than the actual one gives a sound velocity approximately 10 too high 12 3 Measurement Select in the main menu the program branch MEASUR par gt MEA lt opt sf ING Confirm by pressing ENTER Measuring WIM If this error message appears par gt MEA lt opt sf e you did not enter all the required parameters or NO DATA e the sound velocity for the material was set to 0 0 m s 12 3 1 Measurement of Wall Thickness This display appears if the wall thickness was selected Wall thickness as quantity of measurement for the channel on which the probe is connected As long as there is no valid measured value the unit of measurement and a ques tion mark are shown on the lower display line mm Apply a film of acoustic coupling compound on the test Wall Thickness Ni piece the pipe Firmly press the probe against the test piece As soon as a valid measured value is obtained 3 51 mm the measured thickness is displayed on the second line A tick is displayed on the right of the first line The measured value remains on the display when the probe is taken off the material To minimize errors during the measurement of the wall thickness Measure the actual longitudinal sound velocity of the material using a comparative block of the same material with
43. mm velocity This allows you to detect wrong positioning Still do not change the transducer distance at this point Signal transit time t 94 51 ps The signal transit time in the medium can be displayed 1488 1 m s on the upper line Conclude the ongoing measurement by pressing ENTER The positioning of the transducers can be repeated now 92 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 14 Measuring the Sound Velocity of the Medium Search again no gt Y US300PM asks you if you want to search again for the correct transducer distance Select NO if the sound velocity of the medium has been measured precisely wrong positioning of the transduc ers L L less than 1 mm Select YES if the wrong positioning was too large or if no signal was found A new measurement cycle will be started You may repeat the cycle as often as you like In most cases however one or two cycles are quite enough for measuring the sound velocity Store data no gt Y c Medium is 1488 1 IM 01G05B02 01E 1st Edition Nov 5 2001 XX Select YES to store the measured sound velocity as the sound velocity of the medium in the parameter record The measured sound velocity can be edited before it is stored in the parameter record Confirm by pressing ENTER The name of the medium in the parameter record is changed to Other Medium 93 94 14 Measuring the Sound Velocity of the Medium IM 01G
44. settings the SYSTEM SETTINGS then the MEASURING option uring Note US300PM stores the MEASURING settings at the end of the dialogue If you leave the program branch before the end of the dialogue your settings won t be effective Always select OFF here Confirm by pressing ENTER SKYDROL Korrect gt OFF lt on In the FLOW VELOCITY display select NORMAL to Flow Velocity have the profile corrected flow velocity displayed and SNORMAL lt output Select UNCORR to enable the display of flow veers velocities without flow profile correction This setting is cold start resistant Confirm by pressing ENTER If you have selected UNCORR in the previous display A PROFILE CORR US300PM will ask the MEASURING program branch explicitly whether to use the profile correction for the selected channel or not gt NO lt yes 74 IM 01G05B02 01E 1st Edition Nov 5 2001 XX FLOW VELOCITY 2 60 m s Cut off Flow gt ABSOLUTE lt sign Cut off Flow gt FACTORY lt user Cut off Flow 5 0 cm s Cut off Flow 5 0 cm s Velocity limit 24 0 m s IM 01G05B02 01E 1st Edition Nov 5 2001 XX 11 System Settings If you select No the profile correction will be com pletely disabled All measuring quantities will be calcu lated with the uncorrected flow velocity The designations of the measuring quantities will be dis played in capital letters to indicate this If you selec
45. the measuring results of the different channels IM 01G05B02 01E 1st Edition Nov 5 2001 XX 47 48 7 Advanced Measuring Functions IM 01G05B02 01E 1st Edition Nov 5 2001 XX 8 Storage and Output of Measured Values 8 Storage and Output of Measured Values When measuring US300PM can store or transmit to a PC the following data Date Time Number of the measuring point Pipe parameters Medium parameters Transducer parameters Sound path reflection or diagonal Transducer distance Damping factor Storage rate Quantity of measurement Unit of measurement Measured values The values of the activated process inputs and the totalizer values are also stored or transmitted automatically The measurement with the data logger function is described in section 8 A the direct output of meas ured data to a PC online output in section 8 3 The stored measuring data can later be transmitted to a PC offline output This function is described in section 8 2 You will find information about the memory s capacity in section 3 85 L US300PM can store a maximum of 100 measuring data sets The number of data sets that can be created depends on the total number of measured values stored in the precedent data sets When all stored measured values have been deleted and a new measurement is started with only one quantity of measurement on one channel and no totalization approx 27 000 measured values can be stored in the da
46. the output range Example If the output range 4 20 mA was selected for a current output a signal of 20 mA will be transmitted to the cur rent output when a flow rate of 300 m h is measured For a measured current of 0 m h a signal of 4 mA will be transmitted to the current output IM 01G05B02 01E 1st Edition Nov 5 2001 XX 15 Process Outputs 15 5 Activation of a Pulse Output Select the OUTPUT OPTIONS program branch for the Pulse Output channel assigned to the output you want to activate In the PULSE OUTPUT display select YES to activate the B1 no gt YES lt pulser ouni If the flow velocity is selected as the quantity of meas urement an error message is displayed The use of the pulse output is not possible because it is technical non sense to totalize the flow velocity Pulse Output NO COUNTING Enter the PULSE VALUE US300PM automatically dis Pulse Value plays the units selected for the quantity of measurement in the OUTPUT OPTIONS When the measuring quantity 0 01 m3 reaches the pulse value a pulse will be emitted Enter the PULSE WIDTH Values between 80 and 1000 Pulse Width milliseconds are possible The pulse width depends on the specifications of the instrument e g counter total 100 izer PLC which will be connected with the pulse output US300PM then displays the maximum possible flow in the pipe that the pulse output can work with This value is calcula
47. the product are shown here Appendix B Reference The tables and the figures for the properties of the materials and media are shown here 1 4 2 The Basic Measurement The chapter 5 describes the process of the basic measurement by which you will get to know how to simply display the flow values of the measurement This process is basic and common also with the advanced measuring functions Therefore please read the chapter 5 thoroughly and fully understand the process of the basic measurement 7 Steps of the basic measurement A Connecting Cables to the Instrument refer to section 4iand 4 1 Connect the cables for power supply and transducers to the instrument Turn the power on B Selection of the measuring point refer to section 5 1 Select the measuring point on the pipe to mount the transducers C Entering the parameters of materials and media refer to section 5 2ito 5 4 Enter the parameters of the material and medium at your measuring point D Selection of the measuring channels refer to section 5 5 Activate the channels you want to use for the measurement and select the settings of each measuring channel in the following order D 1 Selection of the sound path factor refer to section 5 6 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 1 Introduction Enter the number of transit path of the ultrasonic signal through the medium in the pipe The instrument calculates the transducer distance and indic
48. the state of the pipe Table 2 of appendix B gives I ee Roughness typical roughness values of pipes 0 4 Confirm by pressing ENTER FOR A MEDIA Enter the minimum value of the sound velocity in m s for the medium you want to measure Values between 800 and 3500 m s are allowed Confirm by pressing ENTER Enter the maximum value of the sound velocity in m s for the medium you want to measure Values between 800 and 3500 m s are allowed Confirm by pressing ENTER Enter the kinematic viscosity of the medium Values be Kinem Viscosity tween 0 01 and 30 000 00 mm s are accepted 1 01 mm2 s Confirm by pressing ENTER Enter the density of the medium Density Confirm by pressing ENTER 1 00 g cm3 P a 10 2 3 Deleting a User Material or User Medium To delete a user material or medium proceed as follows In the program branch SPECIAL FUNCTION select Install Material INSTALL MATERIAL or INSTALL MEDIUM and press edit gt DELETE lt ENTER Select DELETE and confirm by pressing ENTER 68 IM 01G05B02 01E 1st Edition Nov 5 2001 XX USER MATERIAL 01 POLYSTYRENE Really Delete gt NO lt yes IM 01G05B02 01E 1st Edition Nov 5 2001 XX 10 Libraries Select the user material or medium to be deleted and confirm by pressing ENTER US300PM asks for confirmation Select YES or NO and press ENTER 69 70 10 Libraries
49. totalizers to zero Press key 8 when a totalizer is displayed 2 To deactivate flow totalizing Press key when a totalizer is displayed Attention The flow totalizers can only be activated for the measuring channel which measured values are actually displayed IM 01G05B02 01E 1st Edition Nov 5 2001 XX 41 7 Advanced Measuring Functions Once the totalizers are activated the totalized value is aA 32 5 m3 shown on the first line of the display here the volume which has passed the measuring point in positive flow 54 5 m3 h direction since the activation of the totalizers 7 2 1 Settings The behavior of the totalizer after a measurement has been interrupted can also be set in the program branch SPECIAL FUNCTION SYSTEM SETTINGS MEASURING In the MEASURING scroll list select the QUANTITY RE Quantity recall CALL option OTET gt ON lt If you select ON the previous numerical values of the totalizers are kept after restart of the measurement If you select OFF the numerical values of the totalizers are reset to zero after restart of the measurement It is possible to store the value of the currently displayed totalizer only or one value for each flow direc tion In the SPECIAL FUNCTION SYSTEM SETTINGS STORING program branch select the QUANTITY STORAGE entry Select ONE if US300PM should only store the value of Quantity Storage the displayed totalizer
50. 01 XX 33 5 Basic Measurement 3 Press key to switch on the lower line between the s 000000 display of the transducer distance and the bar graph of o 000000000 the quality of the signal Q If the signal is not suffi cient for measurement UNDEF is displayed Press key 9 to scroll on the upper line between the laufz 94 0 us display of the bar graph of the signal amplitude s o 000000000 the bar graph of the quality of the signal Q and the display of the transit time laufz in microseconds Attention It is important for the flow measurement that the signal maximum with the shortest trans ducer distance shortest transit time is used However this signal maximum should not deviate from the suggested distance by more than 0 5 cm In case of bigger deviations check if the entered parameter inputs are correct or repeat measurement at a different location on the pipe Renew the film of acoustic coupling compound if necessary After the precise positioning of the transducers the suggested transducer distance is displayed again here 21 7 mm Enter the current precise transducer distance and press ENTER or just confirm the displayed value by pressing ENTER It is possible to have US300PM remind you of the last Trand Distance 21 7 mm The precise transducer distance is essential for an ex act measurement of the sound velocity of the medium see chapter 14 5 8 Starting the Measurement
51. 05B02 01E 1st Edition Nov 5 2001 XX 15 Process Outputs 15 Process Outputs Your US300PM is equipped with different process outputs current output frequency output binary output These outputs must be installed and activated before they can be used The installation of an output consists of three steps e Assigning a measuring channel source channel to the output e Defining the measured value the assigned channel should transmit to this output source item and the properties of the signal e Defining the behavior of the output in case no valid measured values are available Only after this procedure has been gone through will measured values be available at the outputs 15 1 Installation of a Process Output The installation of the system outputs takes place in the SPECIAL FUNCTION SYSTEM SETTINGS PROCESS OUTPUTS program branch SYSTEM settings Proc outputs Install Output Current I1 Il disable gt NO lt Il enable no Il Source chan f Channel A IM 01G05B02 01E 1st Edition Nov 5 2001 XX In the SPECIAL FUNCTION SYSTEM SETTINGS program branch select the PROCESS OUTPUTS option Confirm by pressing ENTER Select the output you want to install The scroll list con tains all the actually available process outputs A tick x after an item of the list means that this output has already been installed Confirm by pressing ENTER This display appears
52. 120 mm USPA082 Ruler for the mounting fixture marked length 330 mm Acoustic couplant USPA091 Acoustic couplant 100 g for 30 to 130 C USPA092 Acoustic couplant 100 g for 30 to 200 C IM 01G05B02 01E 1st Edition Nov 5 2001 XX Standard Specifications Dimensional Drawings Ultrasonic flowmeter US300PM 115 5 ay Transducers US300PT xBx O w X Y Transducers US300PT xCx US300PT xDx EEEH De a X Y Length Transducer X m IY m X Y m US300PT xBx 2 0 1 0 3 0 US300PT xCx 2 0 2 4 4 4 US300PT xDx 5 0 7 0 12 0 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 123 Standard Specifications Optional extension cable US300PC Axxx Length Optional extension cable L m US300PC A005 5 0 US300PC A010 10 0 US300PC A020 20 0 Wall thickness probe for 20 to 60 C option WTG or model USPA301 48 Wall thickness probe for 0 to 200 C option WTH or model USPA302 KBA HT400 La 22 w Length Wall thickness probe L m NTG or USPA301 1 5 IWTH or USPA302 1 2 124 IM 01G05B02 01E 1st Edition Nov 5 2001 XX Reference B Reference The content of the tables has been compiled to help the user The accuracy of the given data depends on the composition and on the manufacturing process of the respectiv
53. 16 1 Error Messages 109 16 2 US300PM doesn t react anymore T13 116 3 No signal can be detected 113 16 4 Measuring Data Substantially Differ L from the Expected Values 2 114 A Standard Specifications 117 B Reference 1 1 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 1 Introduction 1 Introduction 1 1 Regarding this Manual This manual has been written for the personnel operating the US300PM flowmeter It contains very important information about the instrument how to handle it correctly how to avoid damaging it and how to avoid injury Always keep this manual at hand Get acquainted with the safety rules and the handling precautions Make sure you have read this manual thoroughly and understood how to oper ate the instrument before operating the instrument e The contents of this manual may be changed without prior notice e All rights reserved No part of this manual may be reproduced in any form without Yokogawa s writ ten permission e Yokogawa makes no warranty of any kind with regard to this material including but not limited to implied warranties of merchantability and suitability for a particular purpose e If any question arises or errors are found or if any information is missing from this manual please inform the nearest Yokogawa sales office 1 2 Safety Precautions For the protection and safety of the operator and the instrument or the system including the instru ment please be sure to follo
54. 2 01E 1st Edition Nov 5 2001 XX 45 7 Advanced Measuring Functions Physical quantity of the Possible physical quantity of the first Possible physical quantity of the reckoning channel input channel CH1 second input channel CH2 Flow Ve Volume Mass Flow Flow Ve Volume Mass Flow ae el ee ca aaa a Flow Velocity Flow Velocity a eee Ee masr x x _ _x_ x _ Example You wish to determine the difference of the volume flow rates of the channels A and B The physical quantity of measurement of channel A can be the volume flow or the mass flow but not the flow velocity The physical quantity of measurement of channel B can also be the volume flow or the mass flow The quantities of measurement of the two input channel do not have to be identical channel A mass flow channel B volume flow Select the measuring units Confirm by pressing EN TER Two cut off values can be defined for each reckoning channel The cut off value is defined in the unit selected for the quantity of measurement of the reckoning channel Cut off Flow CUT OFF FLOW All positive reckoning values falling 1 00 kg h below this threshold will be set to 0 00 CUT OFF FLOW All negative reckoning values rising Git eie Fw tg this threshold will be set to 2 00 kg h If you wish you can now activate the storage of the Store Meas Data measuring data of the reckoning channel Confirm your gt NO lt yes selection by pressing ENT
55. 95 error VAlUC seco posse eeni enn detiees 97 error Value delay eenen 99 FUNCTION check inet ietin ceti egiala titaan 98 Output range AEE E E E LEETE 96 output value in case Of error ceee 97 Program branches cceceeceeeeeeeeeeeeeeeeeeeeeeees 17 Quantity of measurement selection 0 37 Reckoning channels ccccceeeeeceeeeeeeeeeeeees 44 MEASUTING ee sceeessceces sce cent eee ceeiseeedadineseenliesiteces 46 parameters 00 e cece ceeee cece ee eeeeeeeceeeeeeeenenaeees 45 Re S t int itl nee eaten cele 16 Safety precautions 0 00 eeceeeeseeeeeeeeeeeeenteeeeeenaes 3 Sample rate r ae a eaaa anaE 50 Scope of delivery eeeeeeeeieereerrireersnrnne 7 Selection lists Cdition 0 ecececcceceseeseeeeeeeteeeeees 63 Serial interfaCe sc cecsssdecvscseteetedeeseeees eee Aces 51 Settings dialogues ANd Menus 72 MEASUFEMEN csoccecsatosd iini 74 Signal MED ree ena a EE ae a a AEE 19 Sound path factor eee eeeeeeesteeeeeeeeeeeeneeeeeeees 29 Sound velocity measurement 91 Sound velocity measurement with WTM 79 ME ASUNING s aap a a ei 82 parameter iNDUt oo cece eeeeeeeeeenneeeeeaaes 80 Sound velocity of the material eee 26 Sound velocity of the medium eee eee 27 Specifications vs i2 se00 sees eee 117 SLOPAGE keia e aa eae NE Eai 49 activating deactivating eeeeee 49 SeN Spet ieee ea ae aa ee aies 53 storage Mod issin 54 storage of the amplitude
56. BRK to return to the SET DATE display If this error message appears the set start time is in the past Press any key except BRK to confirm this message Attention The seconds for the start time are set to zero automatically Therefore the set start time must be at least one minute ahead of the actual time 29 04 01 15 17 MN 29 04 01 04 15 S29 04 01 15 17 x 11h 02m 23s US300PM then displays the actual US300PM time on the upper display line and the programmed start on the lower line 4 Here it can be seen that the programmed start is invalid because it is in the past Use keys 9 and 3 to switch between the display of the start time and the display of the difference between the start time and the actual time on the lower display line Press any key except BRK to return to the SET TIME display 13 3 Input of the Stop Time US300PM can automatically stop a time programmed measurement Shortly after such a stop the unit switches itself off if it is in battery mode The STOP MEASURING screen is displayed after the input of the start time 86 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 13 Time programmable Measurement Select one of the options described below and confirm Stop measuring by pressing ENTER Don t stop Option Result DON T STOP Measurement will not be stopped automatically unless if the batteries are empty or
57. Corrective action the right side of the displ nee eee eae eee 1 Wait until the disturbances that cause the high velocities in the pipe disappear IGNAL LED is red a me 2 If necessary consider the input of a new upper limit or deac tivate the velocity check section 7 3 3 Look for a more suitable measuring point 16 1 3 Errors concerning the Battery Error message F10 Reason NO Extern Power The power supply was interrupted while charging 15 00 11 00 Corrective action Reconnect the external power supply US300PM will continue the charging process for the remaining charging time Error message F11 Reason NO EXTERN POWER You have activated the battery charging process although there Charg Impossible is no external power supply connected to US300PM Corrective action Supply US300PM with external power Error message F 12 Reason This message appears when the battery is low but still has enough capacity for the display and keyboard operation in order to store the current parameter record However a low battery will not allow the undertaking of measurements Corrective action Acknowledge this message by pressing ENTER The message appears _every minute for five seconds Charge the battery see section 11 6 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 111 16 Troubleshooting Error message F13 Reason When this error message is s
58. ER Note The values of a reckoning channel cannot be attenuated Therefore the dialogue for set ting the damping does not appear 7 5 5 Measuring with Reckoning Channels Select the program branch MEASURING par gt MEA lt opt sf Confirm by pressing ENTER Measuring 46 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 7 Advanced Measuring Functions Activate the desired measuring channels Reckoning channel can be activated and deactivated in the same way as physical channels see section 5 5 CHANN A B gt Y lt Z MEASUR V V V Confirm by pressing ENTER If you didn t activate any physical channel US300PM immediately returns to the main menu If you didn t activate a physical channel although you WARNING CHANNI had selected it as input channel of an activated reckon B INACTIVI ing channel this warning appears Proceed to positioning of the transducers for all activated physical channels then start measurement When a reckoning channel has been activated Y Volume Flow US300PM automatically switches to HumanMux mode at the beginning of the measurement see section 6 2 53 41 m3 h and displays the values of the reckoning channel If you switch to AutoMux mode the measured values of the different physical channels and not of the reckoning channels will be displayed alternately DISP Y A B To display the reckoning function press on key Q 53 41 m3 h er Press on key 7 to display
59. ER If you have previously selected CUT OFF FLOW SIGN two cut off values must be entered Enter here the cut off flow for positive measured values Cut off Flow When a positive value falls below this threshold the flow velocity is set to 0 cm s All derived values are 5 0 cm s equally set to zero Enter here the cut off flow for negative measured val Cut off Flow ues When a negative value rises above this threshold the flow velocity is set to 0 cm s All derived values are 5 0 cm s equally set to zero If you have previously selected CUT OFF FLOW ABSOLUTE only one cut off value has to be en tered The limit comparison will be performed using the abso Cut off Flow lute numerical value of the measured flow velocity 5 0 cm s 7 5 Reckoning Channels 7 5 1 Overview In addition to the physically existing ultrasonic measuring channels channels A and B US300PM of fers two virtual reckoning channels channels Y and Z These two virtual channels allows you to combine numerically the measuring results of the two ultrasonic channels measured value of channel A minus measured value of channel B for example The result of the numerical operation is the measured value of the selected reckoning channel This measured value is equivalent to the measured values of a physical channel In other words Every thing that can be done with the measured values of an ultrasonic measuring channel totaliza
60. F6 Reason US300PM interrupts the measurement when there is not enough free internal memory available The measurement will not be interrupted if an output has been activated In this case the error message appears periodically on the display Corrective action Deactivate the output option STORE MEAS DATA section 8 1 1 Output the stored measured values via the_serial inter face Afterwards you can delete them see section 8 6 Error message F7 Reason Volume Flow The question mark signals that there is insufficient acoustic con 54 5 m3 h tact during the measurement The measurement is erroneous The last correct measured value remains on the display Corrective action A question mark appears at the right side of the lower display line SIGNAL LED is red 16 3 See section 110 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 16 Troubleshooting Error message F8 Reason NO COUNTING You have tried to activate the totalizers although flow velocity was selected as the quantity of measurement This quantity of measurement cannot be totalized Error message F9 Reason Velocity limit The exclamation mark signals that the defined upper limit for the flow velocity has been surpassed All values of flow veloci ties greater than this limit are marked as outliers invalid meas ured value or measurement impossible m s An exclamation mark appears at
61. Generally both separa tors can be used 8 6 Deletion of Measured Values With this special function measured values stored in the memory of US300PM can be deleted Select the SPECIAL FUNCTION program branch Confirm this by pressing ENTER Scroll through the list un til you reach the DEL MEAS VAL option Confirm by pressing ENTER Special Funct Delete Meas Val To avoid accidental deletion of data US300PM asks for Really Delete confirmation to make sure you really want to delete the 2 stored measured values ue gt YES lt Confirm your choice by pressing ENTER 8 7 Settings of the Data Logger Function Available options are the storage mode storage of both totalizers storage of the measured sound ve locity and of the amplitude Select the SPECIAL FUNCTION program branch Confirm this by pressing ENTER Select the sys TEM SETTINGS in the scroll list Press ENTER Select the STORING option in the scroll list Note All settings of the storage function are coldstart resistant IM 01G05B02 01E 1st Edition Nov 5 2001 XX 53 8 8 Storage and Output of Measured Values 7 1 Storage Mode Select the storage mode SAMPLE or AVERAGE Storage Mode In SAMPLE mode US300PM uses the momentary gt SAMPLE lt average measured value for storage and online output In AVERAGE mode US300PM will use the calculated mean of the measured values of a storage i
62. IM 01G05B02 01E 1st Edition Nov 5 2001 XX 11 System Settings 11 System Settings 11 1 Setting the Internal Clock US300PM features a battery buffered clock During measurement the data are automatically stamped with date and time 11 1 1 Setting the Time Select SPECIAL FUNCTION SYSTEM SETTINGS SYSTEM settings aoe ene Set Clock Confirm by pressing ENTER The actual time is displayed Select OK to confirm or NEW to set the time Confirm by pressing ENTER Use key lt 4 or 6 to select the digit to be edited eo Use key 8 and to edit the selected digit Confirm by pressing ENTER The next display shows the newly set time Select OK to confirm or NEW to set the time again Confirm by pressing ENTER After the time has been set the DATE display will ap 31 01 2001 pear Select OK to confirm or NEW to set the date gt NEW lt Confirm by pressing ENTER Use key g4 or 6 rae 2 Use key 8 and to edit the selected digit Confirm by pressing ENTER to select the digit to be edited DATE 31 01 2001 Set Date IM 01G05B02 01E 1st Edition Nov 5 2001 XX 71 DATE 01 02 2001 gt OK lt new 11 System Settings The next display shows the newly set date and asks for confirmation Select OK to confirm or NEW to set the date again Confirm by pressing ENTER 11 2 Settings for the Dialogues and Menus SYSTEM settings Dia
63. N Select YES to repeat the test No to return to the SYS Bl ON TEM SETTINGS Again no gt YES lt 15 2 Defining the Error Value Delay The error value delay is the delay after which US300PM will transmit the error value to the output in case no valid measured values are available If you don t want to enter a specific value for the delay US300PM will use the damping value as error value delay If you want to give the error value delay a specific value activate the ERROR VAL DELAY as follows In the SPECIAL FUNCTION SYSTEM SETTINGS Error val delay program branch select the DIALOGS MENUS entry gt DAMPING lt edit Confirm by pressing ENTER In the ERROR VAL DELAY display select DAMPING if you wish the damping factor to be used as error value delay default setting Select EDIT to activate the error value delay inquiry From now on US300PM will ask for the error value delay in the program branch OUTPUT OPTIONS This setting is coldstart resistant This display will appear in the program branch OUPUT Error val OPTIONS later Enter the error value delay Confirm by pressing ENTER 15 3 Circuits of Process Outputs Current out put active a Rioap lt 5002 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 99 Open Collector 15 Process Outputs OUTPUT TERMINAL CIRCUIT socket Binary output Uy 5 24V Ref kQ Uy Ic mA
64. Pool display In the ENABLE PARAMPOOL display select YES to en Enable ParamPool able the ParaPool function No to disable it no gt YES lt Confirm by pressing ENTER This setting is coldstart resistant The measuring point parameters saved in ParaPool are not affected by the disabling of the ParaPool function They will be ready for access as soon as the ParaPool function is enabled again 9 4 3 Loading and Editing Short Records The parameters saved in short records must be loaded before they can be edited and used for meas urement Select the program branch PARAMETER gt PAR lt mea opt sf Confirm by pressing ENTER Parameter IM 01G05B02 01E 1st Edition Nov 5 2001 XX 59 60 Parameter t for Channel A Parameter from Current Record Measur Params load from Nr 03 03 INVALID DATA gt AGAIN lt contin 01 ABC 41 edit gt MEASURE lt Save Meas Params as Nr 01 01 Overwrite gt NO lt yes Input name 01 _ 9 Working with Parameter Records Select the channel on which you want to load a short record then press ENTER This display will only appear if parameter records have been stored In this case select CURRENT RECORD and press ENTER Enter the ID number 1 to 80 of the short record to be loaded Confirm by pressing ENTER If this display appears the selected short record is empty or contains invalid data Sele
65. Select BOTH to enable storage of the totalizer value in function of the flow direction gt ONE lt both Confirm by pressing ENTER Press BRK if you want to return to the main menu with out changing the other settings of the data logger Note The selected totalizer storage mode will remain active even after a power failure or a cold start INIT has occurred 7 2 2 Overflow of the Flow Totalizers The flow totalizers can work in two different modes e Without overflow The numerical value of the respective totalizer increases up to the internal limit of 10 The values are displayed as exponential numbers 1 00000E10 if necessary The totalizer can only be reset to zero manually e With overflow The totalizer resets automatically to 0 000 as soon as 9999999999 is reached as for a water clock The totalizer mode can be set in the program branch SPECIAL FUNCTION SYSTEM SETTINGS MEASURING This setting is cold start resistant Select the QUANT WRAPPING option Quant wrapping Select ON to work with overflow OFF to work without off gt ON lt overflow This option will have no impact on the possibility to reset totalizers manually 42 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 7 Advanced Measuring Functions The overflow of a totalizer influences all output channels e g storage of meas ured values serial online output etc The output of sum of both totalizer the throughput
66. Started i 4 1 Switching ON OFF Tt 4 2 The Keyboard on ene n en lor 4 3 The Menus 9 4 4 HotCodesS a oes cuncnetmmentan ed 4 5 Selecting the Language 19 4 6 BATTERY LED eee eee en ee tS 07 SIGNALLED on weeannananaacanarl Ot 4 8 Automatic Power Off 207 6BasicMeasurement 6 1 Selection of the Measuring Point 21 5 2 input ofthe Parameters 4 5 3 Input of the Parameters of the Pipe 251 5 4 input of the Parameters of the Medium _ 27 6 5 Selection of the Measuring Channels ___ 291 6 6 Selection of the Sound Path Factor 297 5 Mounting and Positioning ______________ __of the Transducers ___ 80 5 8 Starting the Measurement 340 5 9 Stopping the Measurement 7735 10 Recognition of Flow Direction _______ 351 6 Displaying the Measured Values 37 6 1 Selection of the Physical Quantity and of the _ Unit of Measurement seen ne 37 6 2 Toggling between the Channels 7 381 3 Configuration of the Display 38 6 4 Transducer Distance 391 7 Advanced Measuring Functions 41 71 The Damping Factor at 1 The Damping Factor wee ene tht 2 Flow Totalizers n li 3 Upper Limit for Flow Velocities 9 43 7 4 Guto Fow S 7 5 Reckoning Channels aa 8 Storage and Output of Measured Values 49 8 3 Online Output of Measured Values ST 8 4 Format of the Serial Output eee 2 8 5 Serial Output Settings 52 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 8 6 Deletion of Measured Values ________ lt 53 8 7 ue of the Data Logger Function 53
67. TER Since the sound velocity measurement does not serve for process outputs online offline output and storage of measured values this selection immediately ends the program branch OUTPUT OPTIONS The parameter record outer diameter wall thickness of the selected channel is used for measuring the sound velocity To start the measurement of the sound velocity select the program branch MEASURING and then the channel for which SOUND VELOCITY was set as physical quantity of measurement Enter an estimated value for the sound velocity of the A c Medium ca medium Values between 800 and 3500 m s are ac 1475 m s ee Confirm by pressing ENTER Select YES to measure in reflection mode NO to meas A Reflection Mod ure in diagonal mode Generally the correct positioning of the transducers in reflection mode is easier than in no PEBH diagonal mode A Transd Distan the suggested transducer distance see section 5 7 1 24 7 mm Retlecks Confirm by pressing ENTER US300PM calculates this first transducer distance on the base of the estimated value of the sound velocity and the actual parameters The amplitude of the received signal is displayed as a E TRANSDUCER bar graph Move the transducers in direction of another until the bar graph starts to get smaller One should try Pf to obtain the maximal signal amplitude at the shortest transducer distance possible DISP I Press keys 9 and 3 to obtain further in
68. USPA324 United Kingdom USPA325 Australia USPA021 Fixing band for transducers of type B only for pipe size 25 to 50 mm Fixing chain USPA326 South Africa Battery set USPA331 Battery set 6V 4Ah Transport case USPA341 Transportation case Accessories others USPA031 USPA032 Fixing chain for pipe size 25 to 600 mm Extensional fixing chain 2m length equal to 600 mm diameter USPA033 Repair set for fixing chain Mounting fix ture Accessories Model Description RS 232 cable USPA401 RS 232 cable RS232 adap ter 9 25 USPA402 RS232 adapter 9 25 Measuring tape USPA411 Measuring tape 122 USPA054 Mounting fixture standard type for transducers type B set of two blocks USPA055 Mounting fixture magnetic type for transducers type B set of two blocks USPA057 Mounting fixture standard type for transducers type C or D set of two blocks USPA058 Mounting fixture magnetic type for transducers type C or D set of two blocks Additional magnets mounting ture for fix USPA073 Additional set of two mag nets for mounting fixture for transducers type B USPA075 Additional set of two mag nets for mounting fixture for transducers type C or D for fix Ruler mounting ture USPA081 Ruler for the mounting fixture marked length
69. a set 13 6 Online Output 90 When the online output via the serial interface is activated the usual header will be transmitted or printed at the start of the measurement As long as the countdown has not started the current measured values and totalizer values will be output As soon as the countdown is started US300PM will confirm that it is waiting for the start time and interrupts measurement When the start time is reached US300PM will transmit or print date time and measuring point number Then after the character string DATA the measured values will be printed in the normal fashion If the unit works in battery mode and the battery discharged itself during countdown so that the measurement could not be started this will be acknowledged as follows LOWBAT 29 04 01 30 46 If the battery goes flat during measurement this is indicated as follows LOWBAT 30 04 06 13 52 An automatic stop of the measurement by reaching the pre programmed stop time is indicated as follows STOP MEASURE AT 30 04 08 15 00 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 14 Measuring the Sound Velocity of the Medium 14 Measuring the Sound Velocity of the Medium In the program branch OUTPUT OPTIONS select the channel you want to use to measure the sound velocity Physic Quant 2 Confirm by pressing ENTER Select the sound velocity Sound velocity as physical quantity of measurement Confirm by press ing EN
70. ailable outputs serial current binary was activated Once time programmable measurement is enabled following display will appear in the program branch MEASURING Select YES to program the time for the measurement Time progr Meas gt NO lt yes Select the digits you want to edit using the horizontal cur BEJ START sor keys 4 and 6 Set Time Confirm by pressing ENTER Rore Confirm the entered start time by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 85 13 Time programmable Measurement START 24 15 INVALID TIME If this error message appears you have probably made the day longer than it is The start time must be set be tween 00 00 and 23 59 Press any key except BRK to return to the SET TIME display Attention The clock function of US300PM works with a 24 hour clock Times must therefore be specified using the 24 hour style e g 02 35 PM 14 35 As soon as a valid start time has been entered the display to set the start date appears START 29 04 2001 Set Date START 39 04 2001 INVALID DATE 29 04 2001 04 15 INVALID START Set the day month and year Confirm the set start date by pressing ENTER If the entered start time exists and is in the future US300PM will ask for the stop time section 13 3 If this error message appears the date entered does not exist US300PM also knows leap years Press any key except
71. ance the measured The sign is taken into consideration value amounts to 11 0 m h measured value gt limit The alarm output switches when the measured value exceeds the programmed limit IM 01G05B02 01E 1st Edition Nov 5 2001 XX 103 15 Process Outputs The sign is taken into consideration Low Limit Example 0 00 m3 h Low limit 10 0 m h The limit will be exceeded by a measured value of 11 0 m h or 22 5 m h The alarm Comparison won t switch if for instance the measured measured value limit value amounts to 9 9 m h The alarm output switches when the measured value falls below the programmed limit You can additionally enter a hysteresis for R1 symmet R1 Hysteresis rically around the limit 100 m s For the function QUANTITY QUANTITY US300PM has a totalizer for each flow direc Quantity Limit tion positive and negative 0 00 m3 If you enter a positive limit the comparison will be made with the totalizer value for posi tive flow direction If you enter a negative Comparison limit the comparison will be made with the to total flow quantity gt limit talizer value for negative flow direction The alarm output switches when the total count reaches the pro grammed limit Note The comparison will also be made if the total flow quantity of the other flow direction has been selected for displaying During measurement the limit values will always be interpreted in te
72. ap gt PAR lt mea opt sf pears on the first line of the display The main menu has following entries PAR parameter MEA measur ing OPT output options and SF special functions corresponding to the four different program branches The actually selected program branch is displayed in capital letters between arrows The full name of the program branch is cere ce on the second line Use keys lt 4 and 6 to select a program branch Confirm by pressing ENTER Parameter 4 3 2 The Program Branches In the PARAMETER program branch you can enter the parameters of the pipe and of the medium for the different measuring channels The MEASURING program branch leads you through the different steps of the measuring process In the OUTPUT OPTIONS branch you can set all output relevant parameters such as the physical quantity to be displayed during measurement and the measurement unit used for display for example The SPECIAL FUNCTION branch contains all functions that are not directly related with the basic measurement IM 01G05B02 01E 1st Edition Nov 5 2001 XX 17 4 Getting Started If a vertical arrow is displayed beside a menu op Parameter tion this menu option contains a scroll list This list is displayed on the second line for Channel Ao Use the arrow keys 8 and 2 to scroll through the list You can return to the main menu at any time by pressing BRK In this manual all p
73. argu Done EE Should the external power supply be disconnected the following error message will appear US300PM stops the battery charging process The re NO EXTERN POWER maining charging time will be saved for example 11 00 When the external power supply is reconnected 15 00 11 00 the charging will continue for the remaining time If there is a battery charging error i e there is no exter nal power supply the battery status display flashes 0 5 Hz Attention Use only the battery set authorized by Yokogawa This battery set can be or dered from your local Yokogawa sales office The use of non rechargeable batteries is prohibited Take care to plug correctly the connector its shape prevents from reversing the polarity 78 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 12 Wall Thickness Measurement 12 Wall Thickness Measurement Equipped with the Wall Thickness Measurement WTM option US300PM can be used to measure wall thickness and the longitudinal sound velocity in a material A dedicated wall thickness sensor to be connected directly with the sensor connection socket is supplied US300PM will automatically rec ognize the wall thickness sensor when connected The wall thickness measuring values can easily be transferred into the current parameter record for the flow measurement US300PM with WTM option uses a modified transit time method to determine the thickness or sound veloci
74. ates the positional relationship of transducers to be mounted on the pipe Mount and position the transducers using calculated value of the distance and indicated posi tional relationship Adjust the transducer distance properly by moving them slightly referring to the bar graph dis played on the product that shows the signal strength or quality E When you enter the current transducer distance again and finish the above procedure for all the channels you are going to use the measurement will automatically start IM 01G05B02 01E 1st Edition Nov 5 2001 XX 6 2 Handling Precautions 2 Handling Precautions 2 1 Scope of Delivery This instrument has already been tested thoroughly at the factory When the instrument is delivered please proceed to a visual control to make sure that no damage has occurred during transportation The model and the specifications of the instrument are shown on the name plate on the rear side of the instrument The model and the specifications of the transducers are shown on the top of transduc ers and on the serial number plate hanging on the cable Please make sure that the specifications of the instrument that was delivered correspond to the specifications given on the purchase order refer to Model and Suffix Code in Appendix A Flowmeter ULTRASONIC FLOWMETER MODEL US300PM Sa ae s M 02530100 C E n
75. avoid that the instru ment and its accessories fall out 2 3 General Precautions US300PM is a precision measuring instrument and it must be handled with care To obtain good measurement results and in order not to damage the instrument it is important that great attention is paid to the instructions given in this User s Manual and particularly to the following points e Protect the instrument from excessive shock e Do not open the housing without Yokogawa s authorization e Use a correct external power supply when not using the battery supplied by Yokogawa e Make sure to work under correct ambient and operating temperatures refer to Standard Specifica tions in Appendix A aoe e Handle the charging unit and the battery correctly see section 2 6 e Respect the degree of protection refer to Standard Specifications in Appendix A e The power adapter battery charging unit is not moisture proof Use it only in dry rooms e Keep the transducers clean e Manipulate the transducer cables cautiously avoid excessive cable bend 2 4 Cleaning Clean the instrument with a soft cloth Do not use detergents Remove traces of acoustic coupling compound from the transducers with a paper tissue 2 5 Battery Replacement To replace the battery e Unscrew the two cap nuts 5 5 mm of the battery compartment cover see picture in section 8 4 2 and remove the cover Make sure not to lose the screws e Unplug the connector e Remove th
76. be displayed on the second line in addition to the selected quantity of measurement e Flow velocity e Volume flow rate e Mass flow rate Use key 3 to scroll through the different displays of the second line while measurement is going on DISP The character is a reminder that the shown value in this case the volume flow is not the selected physical quantity A Volume Flow 5 2 47 m3 s 6 4 Transducer Distance During measurement it is possible to scroll to the dis L 51 2 50 8mm play of the transducer distance by pressing the key The actual optimal transducer distance is given first in parenthesis here 51 2 mm then the entered trans ducer distance here 50 8 mm The optimal transducer distance might change during measurement due to temperature fluctuations for example An eventual mis positioning of the transducers here 0 4 mm will be in ternally compensated by US300PM Attention Never change the transducer distance during measurement this would lead to false val ues of the sound velocity IM 01G05B02 01E 1st Edition Nov 5 2001 XX 39 40 6 Displaying the Measured Values IM 01G05B02 01E 1st Edition Nov 5 2001 XX 7 Advanced Measuring Functions 7 Advanced Measuring Functions 7 1 The Damping Factor The damping factor is the integration time of the calculated gliding average value Default value for the damping factor is 10 s value for normal flow conditions Strongly fluctuating r
77. bo YOKOGAWA Made in Germany Transducers ABCDEFGHINJKLMNOPQ In the minimum requirement the following items of standard supply are in the package Flowmeter US300PM Axx 2 N User s manual 1 Basic instrument including built in battery set fully charged 1 Power adapter and battery charging unit with integrated cables for 1 connection with instrument and power supply Transportation case 1 Transducers US300PT x xx x x x Transducers as per order with integrated cables 1 Mounting fixtures 1 Fixing chains and Extensional fixing chains 1 Tube of acoustic coupling compound 1 Note x means some numeral or character of Suffix Code means an option number according to your particular order IM 01G05B02 01E 1st Edition Nov 5 2001 XX 7 2 Handling Precautions Your package may contain other components according to your particular order Please make sure that the specifications of these components correspond to the specifications given on the purchase order If you have any problems or questions please contact your local Yokogawa sales office When con tacting Yokogawa always have the following information at hand e model MODEL e serial number No Pree e factory number F No refer to section 11 5 ee e the number of the firmware version refer to section 111 5 2 2 Unpacking Unpack the transport case when it lies flat on its large bottom surface in order to
78. ce 12 3 5 Reasons for Incorrect Measuring Temperature fluctuations The sound velocity of the material is temperature dependent Doubling effect When measuring wall thickness using ultrasonic signals a phenomena called doubling effect can be observed in situations where the thickness of the material is smaller as the lowest measuring range of the probe The measured value is then twice or sometimes three times as big as the actual thickness of the material because of unwanted reflections of the sound signal Measured value is too small A value considerably smaller than expected might be caused by a material defect The ultrasonic sig nal was reflected by the material defect in the material and not by the boundary layer leading to a shorter transit time and thus a smaller thickness Surface condition Periodical unevenness e g small grooves on the surface of a measuring object can lead to wrong measuring results Normally this problem can be overcome by turning the probe so that the acoustic partition boundary of the probe see drawing below is perpendicular to the orientation of the grooves In some cases measuring on a rough surface with too much coupling compound will lead to wrong measured values Measurement on very rough surfaces might be impossible the display will show No Coupling In such a case the surface should be treated and smoothed out accordingly Curved surfaces il The acoustic parti
79. ce SOUICES eeeeeeeees 22 DiStUrDAnce iiaii eean ani a i 22 Error messages i decccieadediedesacnesnieesie 109 Error Valles e aaa e a a aeaaee 97 Error value delay si s niiieiieieiieiiniiaiaiaiennn 99 Factory n mber i a iee eeii 76 Firmware VErSiOn ccccceceseeseceeeeeeeeeeneneeeeees 76 Flow direction cececceceeceeeeeeeeeeeaeeeeeeeeeneaeeeeees 35 Flow nomogram eee 120 Flow profile 0 0 00 eae ieee 21 Flow velocity lower Mitikasi atarra ati 43 UPperlimit zA seia errie a e chee tees a ian 43 Function control process outputs eee 98 Handling precautions seeren 8 HOUCOdeS oiin a etd tain aes 19 FIUMANM UX itai siisi ikaspen cides tances 38 Initialization 2 2 eee cece cece eeeeeeeceeeeeeeeeeeeeaeeeeees 16 Instrument information cceeceeeeeeeeeeeeeeeees 76 K6yDOard PAA EE EEE EE EE doe he 15 Kinematic viscosity e eerren 28 Language selection ec eeeeeeeeeeeeeeenteeeeneeeeenes 19 Libraries inrano ena aie 63 Main MON sarna en neue hoa bol sabes etn ese ceaet 17 Material list ienai te laia 63 Materials GOPIMING EEE EEEE 65 67 deleting scanned ipe ga aie 68 Measurement StartNr eeigen aeieeiaii stones 34 SLOPPING e e a t i eieae a aiT 35 Measuring channels selection 0 e 29 Measuring point points 10 AVOIC icini 23 SCISCHOMN P A E A 21 Measuring point designation ccceeeeees 50 Measuring princi
80. ch both depend on temperature Enter the medium temperature The value must be Medium Temperat within the operating range of the transducer The de 20 fault value is 20 C Confirm by pressing ENTER Note The range of possible medium temperature depends on the operating range of the se lected transducers 5 4 5 Transducer Parameters If no transducers are connected if you have connected special transducers which US300PM cannot automatically recognize or if the connected transducers are defective following display will appear at the end of parameter input 28 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement Select STANDARD to work with standard transducer pa rameters or SPECIAL VERSION to edit the transducer parameters manufacturer s data must be available TransducerTypet Standard Confirm by pressing ENTER If you have selected SPECIAL VERSION US300PM Data will ask for the transducer data Enter the value of the 6 transducer parameters as given by the manufacturer 35 99 confirming each entry by pressing ENTER Transd 5 5 Selection of the Measuring Channels In the main menu select the program branch MEASUR par gt MEA lt opt sf ING then press ENTER Measuring In the first display of the program branch MEASURING HANN gt A lt B Y Z activate the channels on which you want to measure i and deactivate the others EASUR V 4
81. cities its viscosity and its density The basic properties of a material are its transversal and longitudinal sound velocities and its typical roughness Note The user area must be partitioned before any data can be stored 10 2 1 Partitioning the User Area The capacity of the user area can be parted as you like among the following data set types e Basic data of a material sound velocity typical roughness e Basic data of a medium sound velocity viscosity density The maximal number of data sets for each of these categories are given in the following table fog Maximum number of data sets Corresponding occupancy of the User Area in 97 ees iP SCS wa o S IM 01G05B02 01E 1st Edition Nov 5 2001 XX 65 66 Libraries t Format USER AREA Format USEKR AREA Materials 105 Format USER AREA Media 06 Format USER AREA Heat Coeffs 00 Format USER AREA Steam Coeffs 00 Format USER AREA Concentrat 00 USER AREA 89 used Format NOW no gt YES lt FORMATTING OOOOOOO 10 Libraries In the SPECIAL FUNCTIONS SYSTEM SETTINGS LIBRARIES program branch select the entry FOR MAT USER AREA Confirm by pressing ENTER In the following a message will be displayed if the se lected number of data sets for a certain type of data would overflow the capacity of the user area Enter the wanted number of user materials Enter the wanted number of user me
82. cord 09 Edit parameters no gt YES lt Measur Params load from Nr 03 03 INVALID DATA gt AGAIN lt contin Save Meas Params As Nr 03 IM 01G05B02 01E 1st Edition Nov 5 2001 XX Select the program branch PARAMETER Confirm by pressing ENTER Select the channel which parameters you want to save in ParaPool This display will only appear if parameter records have been stored If you want to load the parameters stored in a parame ter record and save them in a short record select that parameter record now Otherwise select CURRENT RECORD and press EN TER This display will appear if you have selected a pa rameter record in the previous step Select YES to edit the loaded parameters before saving or NO to save without edition If the parameters you want to save in a new record are already saved in a short record enter the ID num ber of that record now then press ENTER The pa rameters of the selected record will be loaded If you wish to save the current parameters of the pre viously selected channel in a short record enter 0 zero or press key Press ENTER to confirm then edit the current parameters If this display appears the selected short record is empty or contains invalid data Select AGAIN to repeat the input of an identification number If you select CONTIN the current parameters are displayed for edition and can later be saved in a short record
83. ct AGAIN to repeat the input of an identification number Confirm by pressing ENTER Select EDIT if you wish to edit the loaded parameters or select MEASURE to start measurement immediately If you have selected EDIT edit the parameters now as described in sections 5 3 and 5 4 At the end of the edition of the loaded parameters US300PM asks you under which ID number the edited parameters must be stored Enter an ID number 1 to 80 Confirm by pressing ENTER If parameters are already saved in the selected short record US300PM asks if you want to overwrite them Select YES to overwrite the parameters or No to enter another ID number Confirm by pressing ENTER Enter a name for the short record In the program branch SPECIAL FUNCTION SYSTEM SETTINGS DIALOGUES MENUS MEAS POINT NO you can choose if the name should be entered alphanumerically or as key sequence Confirm by pressing ENTER The parameters are saved under the selected ID num ber IM 01G05B02 01E 1st Edition Nov 5 2001 XX 9 Working with Parameter Records 9 4 4 Saving Parameters in a Short Record You can save the current parameters of a measuring channel in a short record or load and edit the parameters of an already existing parameter record or short record and save them afterward in a short record gt PAR lt mea opt sf Parameter Parameter 2 for Channel A Parameter from Par Re
84. ct is established again Temporarily there might be a higher proportion of gaseous or solid particles in the flowing medium e Make sure there is a film of acoustic coupling compound between the transducers and pipe wall Renew the film if necessary Position the transducers again Adjust transducers for maximum acoustic contact IM 01G05B02 01E 1st Edition Nov 5 2001 XX 113 16 Troubleshooting Measure with a smaller number of transit paths The signal attenuation might be too high because of high fluid viscosity or deposits on the inner pipe wall Select a more suitable measuring point along the pipe work see section 5 1 b No Signal Problem No value appears on the display A question mark is displayed on the lower line The signal LED is red Check Were the parameters of the pipe and of the medium entered correctly and completely You should especially control if the entered sound velocity is correct Are the transducers positioned correctly calculated distance 3 mm see section 5 7 1 Is the surface of the pipe clean free of paint rust etc Make sure there is a film of acoustic cou pling compound between the transducers and pipe wall Renew the film if necessary Select a smaller number of transit paths The signal attenuation might be too high because of high fluid viscosity or deposits on the inner pipe wall Select a more suitable measuring point along the pipe work see section 5 1 Is the proportio
85. define new materials and media The US300PM coefficient storage can be partitioned as you like For more information about user materials and media see section 10 2 10 1 Editing the Selection Lists The procedures for the edition of the material and of the media selection list are the same We de scribe here the edition of the material selection list In the program branch SPECIAL FUNCTION select the Special Funct option SYSTEM SETTINGS and press ENTER SYSTEM settings In the SYSTEM SETTINGS scroll list select the option SYSTEM settings LIBRARIES and press ENTER Libraries Select MATERIAL LIST to edit the material selection Material list Select MEDIUM LIST to edit the medium selection list Select GO BACK to return to the SYSTEM SETTINGS Confirm you selection by pressing ENTER Select FACTORY if all materials media of the internal Material list a alanine aed he tk see had fe ready existing selection list will not be deleted but on factory gt USER lt pea Ava y Select USER to activate the user defined selection list Confirm by pressing ENTER If USER has been selected you now have the possibility Material list to edit the selection list The options of the scroll list are gt Show list After edition select END OF EDIT and press ENTER Material list gt End of Edit IM 01G05B02 01E 1st Edition Nov 5 2001 XX 63 Save List
86. dia Enter 0 here The definition of heat flow coefficients is not possible on this instrument at the moment Enter O here The definition of steam coefficients is not possible on this instrument at the moment Enter 0 here The definition of concentration coefficients is not possible on this instrument at the moment US300PM displays for a few seconds the occupancy of the user area for the selected partition 89 corresponds to the given example 6 data sets for material and 6 for media 0 for heat coefficients 0 for steam coefficients 0 for concentration coefficients US300PM asks for confirmation of the selected parti tion Select YES to proceed to partitioning US300PM formats the user area according to your in puts This procedure takes a few seconds IM 01G05B02 01E 1st Edition Nov 5 2001 XX 10 Libraries Once the formatting is finished US300PM will return to Libraries t the FORMAT USER AREA display Format USER AREA Keeping Data during Formatting of the User Area When reformatting the User area US300PM can keep up to 8 data sets of each type Example 1 You reduce the number of user materials from 5 to 3 The data sets 01 to 03 are kept The last two data sets 04 and 05 are deleted Example 2 You increase the number of user materials from 5 to 6 All 5 data sets are kept 10 2 2 Input of the Material Media Properties The procedures for the input of material and medium properties ar
87. droxide lt 30 Alcalicarbonate Bichromate Potassium hexacyanoferrates Acetonitrile Sodium bisulfate Drilling emulsion Plane fuel Diesel oil Gasoline Varnish Water Paraffin oil Salted water Castor oil Silicone oil Turpentine oil substitute Dccon Ethanol Formaldehyde 37 42 1 1 1 Trichlorethane Cyclohexanol Acetaldehyde Ethyl acetate Diacetone alcohol Aliphatic hydrocarbons Diethyl ether Glycol Toluol N butyl acetate lsopropanol Xylol Amyl acetate Glycerine Diluent white spirit Butylcellosolve Methanol Ether Triacetin Dowandol DRM PM Acetone Formic acid lt 50 Chlornatron lt 20 Methyl ethyl ketone Acetic acid lt 50 Hydrogen peroxide lt 25 Dioxan Phosphoric acid lt 30 Potash soft soap Cyclohexanone Hydrochloric acid lt 36 Detergent MIBK Nitric acid lt 10 Tensides Isophorone Trichloroacetic acid lt 50 Softener Iron chlorides FeCl2 Iron chlorides FeCl3 Dibutyl Phthalat Dioctyl Phthalat Sodium carbonate Autotex is resistant acc to DIN 42 115 part 2 to acetic acid for a without visible damage IM 01G05B02 01E 1st Edition Nov 5 2001 XX contact time of less than 1 hour Reference Table 5 Chemicals to which Autotex keypad is not resistant Autotex is not resistant to following chemicals Concentrated mineral acids Benzyl alcohol Concentrated alkaline solutions Methylene chloride High pressure steam over 100 C Table 6 Properties of water with pressur
88. e p 1000 hPa 1 bar and saturation Pot lt tc 140 T Temperature Pressure Density Cp Specific heat at constant pressure 128 IM 01G05B02 01E 1st Edition Nov 5 2001 XX Alarm outputs 000 eee eee e eset ee enteeeeeeaeeeeneeeeee 101 limit valgseier Ee 103 properties prioren aea easar deposed cccseeees 102 Alarms state zei eire atsieis i aE 106 Applications 202 00 cc0 ecc cescgieeeeeeseeeceecsnee edie teeteeeseees 12 ANUIT AVLU D cs OEE E E E EE helene 38 Batten tan e N 14 CNAN QING EEEE TEA EE 77 handling s ts csi0 Mel nn hes eee pT 9 LED sisihaieate bnew tian i a ate eee 19 PEPlaCS Metisse sc csteececgce cess chteecscenes ih cdayecunacetacete 8 storage iaaea aaeeea Goines a aii 9 e ee aae PE E TR E EE A ETETE 8 Clock Setting serci i thee 71 Coefficient storage 2 ee eeeeeeeseeeeesneeeeeenneeeeeeeeees 67 Cold Starts ce ciccces adi E E 16 Contrast Setting 0 ccccecceceeeeeeeeeeeeeeeeeeeeeeeeaees 76 Cut off TOW i i ies 43 Damping factor ccecceceeeeeeeeeeceeeeeeeeeeneaeeeeees 41 Data lOQQ Gf ii ccf teed onenn 49 Date SCtting PAE E E E 71 Deleting measured values 53 Density of the medium ceceeeeeeen 28 Description of the flowmeter 008 11 13 Dimensional drawings cccceeeseeeeeeesneeeeeeeees 123 DISPIAY sien sv ii ces sche desc ice tees A TA 18 38 Displaying the results eee eeeeeeeeeeeeeeeeteeeeees 38 Distance to disturban
89. e 14 63 The time was not entered correctly INVALID TIME Corrective action Enter a valid time 16 1 7 System Errors Error message F20 Reason SYSTEM ERROR Unexpected system error 20 7 02 7300 Corrective action Press BRK to return to the main menu Number sequence is an example Should this message appear several times please note the fac tory number of your instrument and the number sequence in the lower line of the display Contact your local Yokogawa sales of fice for further assistance 16 2 US300PM doesn t react anymore Restart the instrument by pressing following keys simultaneously T c nF Reset If the problem occurs again Did you change any parameter and settings before the problem occurred Incorrect parameter and setting values can lead to system errors Try finding out the last changes made and reset the parame ter setting to their initial value 7 BRK N C Pressing keys J simultaneously while switching the flowmeter ON until the main menu appears will initialize US300PM Most parameters and settings are reset to the factory default values The memory will not be cleared If the problem still occurs contact your local Yokogawa sales office 16 3 No signal can be detected a Signal Loss Problem A question mark appears on the lower display line at the right of the last measured value The SIG NAL LED is red Check e Wait a little while until the acoustic conta
90. e battery pack by pulling on the black strap e Insert the new battery pack Make sure to insert the battery pack in the instrument with the connec tor free end first e Plug the connector again Take care to plug the connector correctly it prevents to reverse the po larity e Screw the battery compartment cover back on the instrument 8 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 2 Handling Precautions Attention Use only the battery set authorized by Yokogawa This battery set can be or dered from Yokogawa or an authorized dealer The protective degree IP54 of the flowmeter is given only if the battery com partment cover is screwed on the housing 2 6 Battery Handling If the battery operating time has become a lot shorter than specified please replace the battery Taking the following precautions will prolong the battery s life expectancy e For longer periods of storage batteries should be kept at low temperatures 0 C to 10 C Storage in cool conditions will lower the self discharging by a factor of 1 10 e Store the battery set only in charged condition e To avoid the so called Memory Effect the charging of the batteries in ever shorter times with a low charging capacity discharge the batteries fully in a smooth and continuous manner before a new charging cycle is being started Do not deep discharge batteries Attention Use only the battery set authorized by Yokogawa This battery set can be or dered fro
91. e in the scroll list Error value Confirm by pressing ENTER Minimum If you have selected OTHER VALUE enter the error Frror value value now The value must be within the physical limits of the process output Confirm by pressing ENTER Note US300PM stores your settings now at the end of the dialogue 15 1 3 Function Check Finally you can test the function of the installed output Connect the output you have installed with a multimeter Test of analogue outputs Enter a test value in our example the current output is I1 Output Test tested The test value should be in the selected output range Confirm by pressing ENTER 4 mA The output functions correctly if the measuring instru T1l1 4 0 mA ment displays the entered value Again no gt YES lt Select YES to repeat the test NO to return to the sys TEM SETTINGS Test of binary outputs In the OUTPUT TEST scroll list select OFF to test the de energized state of the binary output Confirm by Bl Output Test g pressing ENTER No current should be flowing at the output now Reed Relais OFF 98 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 15 Process Outputs Select YES and confirm by pressing ENTER Bl OFF Again no gt YES lt In the OUTPUT TEST scroll list select ON to test the en ergized state of the output Confirm by pressing EN TER A current should be flowing now Bl Output Test Reed Relais O
92. e material as well as on tem perature Yokogawa does not accept liability for possible inaccuracies Table 1 Sound velocity of some current pipe and lining materials at 20 C You will find here the longitudinal and transversal sound velocities of some pipe and liner materials at 20 C The gray underlayed values are not stored in the US300PM data bank In the cgjgy column the sound velocity longitudinal or transversal used by US300PM for flow measurement is indicated In the case of your particular measurement problem remember that the sound velocity depends on the composition and on the manufacturing process of the material The sound velocity of alloys and cast material will fluctuate over a certain range the velocity given here should in such a case be under stood as an orientation value trans Clong Cflow Material Ctrans Clong Cflow m s m s m s m s m s Aluminum 3100 6300 trans Platinum 1670 trans Asbestos ce 2200 o trans Polyethylene 925 trans ment Bitumen 2500 P trans Polystyrene 1150 P trans Brass 2100 4300 trans PP 2600 tans Carbon steel 3230 5800 trans PVC 2 long Copper 2260 4700 trans PVC hard 948 tans Cu Ni Fe 2510 tars PVDF 760 2050 long Ductile iron 2650 o trans Quartz glass 3515 o trans Glass 3400 4700 trans Rubber 1900 2400 trans Grey cast iron 2650 4600 trans Silver 1590 o trans Lead 700 2200 long Sintimid o 2m long PE 1950 long Stainless 3230 5790 trans steel
93. e the same In the program branch SPECIAL FUNCTION select IN Special Funct STALL MATERIAL or INSTALL MEDIUM and press Install Material ENTER An error message appears in case you did not reserve USER Material data sets for user materials or user media when format NOT FORMATTED Select EDIT and press ENTER Install Material gt EDIT lt delete Select one of the available memory locations and con USER MATERIAL firm by pressing ENTER 01 not used Default name for a user material or medium is USER MATERIAL N or USER MEDIUM N with N an entire EDD Tee eee number This designation can be modified now USER MATERIAL 1 There are 95 ASCll characters letters capital letters numbers special characters gt lt etc available for the designation of your material medium with a maximum of 16 characters per designation The input of text is described in section 4 2 4 the selection of the input mode in section 11 2 3 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 67 10 Libraries Press ENTER when the edition of the designation of the EDIT TEXT V e5 material is finished Polystyrene FOR A MATERIAL c Material table 1 0f Appendix B gives the sound velocities of 1590 0 m s some materials Values between 600 0 and 6553 5 m s are accepted Confirm by pressing ENTER Enter the roughness of the_pipe taking into considera tion
94. eadings caused by high flow dynamics require a larger damping factor Select the OUTPUT OPTIONS program branch of the channel for which you want to set the damping factor Confirm this by pressing ENTER Work yourself through the scroll list confirming the already selected options by pressing ENTER until you reach the DAMPING option Enter the necessary damping factor Values between 1 Damping and 100 s are accepted 30 S Confirm by pressing ENTER You can now return to the main menu by pressing BRK 7 2 Flow Totalizers US300PM has two built in flow totalizers one for totalizing in positive flow direction the other for total izing in negative flow direction e US300PM totalizes the volume or the mass of medium passing through the pipe at the measuring point e The unit of measurement used for totalization corresponds to the volume or mass unit used in the quantity of measurement see section 6 1 e Every numerical value of the totalizer consists of up to 11 characters with a maximum of 3 figures to the right of the decimal point The two built in flow totalizers can be activated simulta A Volume Flow neously in the VOLUME FLOW or MASS FLOW display during measurement 54 5 m3 h g Rox To activate the flow totalizers Press key 8 To have the totalizer for positive flow direc a tion displayed Press key 6 To have the totalizer for negative flow direc K 4 tion displayed Press key N To reset the two flow
95. easured values for the dura tion of measurement If it is not the following display will appear In our example the free memory capacity only covers WARNING MAX 85 85 of the expected measured values Store Meas Data Press key 9 and 3 to have the time at which the DSP FULL 30 04 07 39 memory is expected to be full displayed on the upper Store Meas Data line of the display If storing is the only output option activated the measurement will be stopped when the memory is full even if the stop time is not reached If another output option is also activated US300PM will continue the measurement until the defined stop time is reached even if the memory is full If the free memory capacity is insufficient try the following e Delete all previously stored measured values SPECIAL FUNCTION DELETE MEAS VAL e Extend the storage interval OUTPUT OPTIONS STORAGE RATE Doubling the storage interval e g from every second to every two seconds will halve the memory requirement e Deactivate the totalizers if possible The storage of one totalizer value app triples the memory re quirement e Check the totalizer storage mode In SYSTEM SETTING STORING QUANTITY STORAGE select ONE if your measurement problem allows the storage of the totalizer for only one flow direc tion 88 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 13 Time programmable Measurement
96. ee User s Manual US300PM Ultrasonic Flowmeter Portable Type IM 01G05B02 01E YOKOGAWA IM 01G05B02 01E 1st Edition Yokogawa Electric Corporation US300PM can be operated in the language of your choice Please refer to chapter 4 5 US300PM blendet seine Anzeigen in einer durch Sie zu wahlen den Sprache ein Siehe Kapitel 4 5 ll est possible de s lectionner la langue _utilis e par US300PM a l cran Veuillez consulter le chapitre 4 5 Displayteksten for US300PM findes i maleapparatet pa sprog dansk tysk engelsk fransk Brugeren kan v lge et af disse sprog se afsnit 4 5 Remarks IBM is a protected trademark of International Business Machines Corporation MS DOS Excel Windows are trademarks of Microsoft Corporation Yokogawa US300PM Firmware Version V5 xx IM 01G05B02 01E 1 edition Subject to change without notice Copyright 2001 All rights reserved Table of Contents 11 Introduction 3 1 1 Regarding this Manual aaeeea i 2 Safety Precautions eww weecnna ct 4 3 Warranty 1 4 How to Use this Manual A 2 Handling Precautions 0 O O7 2 1 Scope of Delivery oeeeeenene nenna 2 Unpacking UTTE 2 3 General Precautions oo D 4 Cleaning et E 2 5 Battery Replacement B 2 6 Battery Handing T TTTS 2 7 Storage laaa aoaaa aana I B The Flowmeter AT B4 Overview OOOO O i 8 2 Measuring Principle 11i 6 3 Applications 2 6 4 Description of the Flowmeter 77 773 8 5 Power Supply ae 4 Getting
97. eely assigned IM 01G05B02 01E 1st Edition Nov 5 2001 XX Frequency output Binary output pulse or alarm Terminal type Display and Setting LCD display LED lamp Keyboard Display language 0 to 1 output Range 0 to 1kHz Contact type Open collector 24V 4mA The value indicates instan taneous flow rate 0 to 2 outputs Contact type Open collector 24V 4mA The output values are se lectable for each output The pulse outputs indicate the total volume flow 0 01 to 1000 unit with pulse width 80 to 1000 ms Banana plug terminals 2x16 characters LCD with back light that can be stitched on or off Two values can be dis played at the same time SIGNAL lamp Indicates the status of the measuring sig nal from each input channel green or red light BATTERY lamp Indicates the status of battery voltage etc 15 keys numeric and func tion keys Easy operation by some guidance on the LCD Following languages select able Czech Danish Dutch English French German Norwegian Polish Turkey Parameter setting storage function Function Calculation function Flow value Sound velocity Storage of pipe and fluid pa rameters Maximum 80 dif ferent settings Storage of all parameters Maximum 14 different set tings Flow velocity Volume flow or mass flow rate and totalization both positive and negative flow totalization Sound velocity in the fluid 117 Wall t
98. ent cceeeeeeeee 79 activating nangen ae eee 79 MOEASUTING ss occeesteceseeccecgesescteededectenseteccneeseecaeesthe 81 parameter input ccc ceeeeeeeeeeseeceeeeeeeseaees 80 Warranty i e e a 3 IM 01G05B02 01E 1st Edition Nov 5 2001 XX
99. er diameter outer diameter 2 x wall thickness and checks if this value is within the specified inner diameter range for the transducers used An error message is displayed if this is not the case 5 3 3 Pipe Material The pipe material now has to be entered in order to determine its sound velocity The sound velocities of the materials of the selection list are already programmed in the instrument When the pipe material is selected US300PM sets the sound velocity automatically Select the pipe material in the pipe material selec tion list If the correct material is not listed select the Pipe Material entry OTHER MATERIAL Carbon Steel Confirm by pressing ENTER It is possible to select which materials are to be dis played in the material selection list See section 10 1 If you have selected OTHER MATERIAL US300PM re c Material quests the entry of the sound velocity Enter the sound 3230 0 m s velocity of the pipe material Values between 600 0 and i 6553 5 m s are possible Confirm by pressing ENTER some selected materials Important Enter here that sound velocity of the material longitudinal velocity or transversal velocity which is nearer to 2500 m s The longitudinal sound velocity of the material can be measured with US300PM See chapter 12 5 3 4 Pipe Lining The instrument asks if the pipe is fitted with lining mate rial or not If YES the following subdisp
100. er of the measured data to a PC or to a printer The data transferred to a PC can be processed by EXCEL or any other data analyzing program US300PM features an integrated measuring point multiplexer which enables simultaneous flow meas urement and reckoning measurement channel A channel B for example 3 2 Measuring Principle US300PM uses ultrasonic signals for the measurement of liquid flow employing the so called transit time method Ultrasonic signals are emitted alternatively in the direction of flow and against it The flowing medium causes different transit times of these two sound signals From the time differ ence US300PM calculates the average flow velocity along the path of acoustic propagation Perform ing a flow profile correction US300PM then calculates the average flow velocity through the cross sectional area which is proportional to the volume flow This effect can be observed over the complete range of flow velocities found in technical applications This allows US300PM to cover a wide flow measuring range and also to determine the direction of flow within the pipe IM 01G05B02 01E 1st Edition Nov 5 2001 XX 11 3 The Flowmeter As ultrasonic waves also propagate in solid materials the transducers alternatively operating as sound transmitters and receivers can be mounted onto the outside of pipe walls allowing for non invasive measurement In order to avoid wrong measurements US300PM tests with its spec
101. ers the operating temperature range can be extended up to 200 C Meas urement can be made on all commonly used pipe materials such as steel synthetic material glass or copper Pipe diameters may range from 25 up to 3000 millimeters depending on transducer type The two clamp on transducers allow for non invasive measurement that do not affect the pipework or the liquid to be measured They are small lightweight and also very robust US300PM is a portable battery operated measuring instrument suitable for field use US300PM has protection degree IP54 and is therefore suitable for monitoring tasks under difficult environmental con ditions US300PM can be operated in different languages A backlit display shows input data and measure ments results as well as operational errors The menus guide the user through the parameter setup measurement and data storage You can define the materials and media which will be offered in the selection lists of the program branches and the order in which they will appear limitation of the long selection lists of the internal properties data bank An integrated coefficient storage which can be par titioned according to your needs keeps self defined properties of materials and media US300PM can log up to 27 000 measured values and up to 14 different sets of site parameters Fur thermore up to 80 memory places for measuring point parameters can be used US300PM has a serial interface which allows the transf
102. etc are stored and will be available when the output is re activated Deactivate the outputs by selecting No in the display of Alarm Output the corresponding output in the program branch OUT PUT OPTIONS gt NO lt yes IM 01G05B02 01E 1st Edition Nov 5 2001 XX 107 15 Process Outputs 108 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 16 Troubleshooting 16 Troubleshooting Select in the following list the situation corresponding the best to your problem and refer to the corre sponding section e Anerror message was displayed Consult section 16 1 e Measurement is impossible No signal is detected Consult section 16 3 e The measured values substantially differ from the expected values Consult section 16 4 e US300PM doesn t react anymore Consult section 16 2 If any trouble appears which cannot be solved with the help of this chapter please contact your local Yokogawa sales offices giving a precise description of the problem When contacting Yokogawa al ways have the following information at hand the model MODEL of the instrument its serial numer No its factory number F No see section 11 5 and the number of the firmware version see section 16 1 Error Messages This section contains an overview of error messages you might encounter We describe their causes give possible reasons for their occurrence and also try to make suggestions as to how these problems can be overcome 16 1 1 Errors during Parameter
103. f Measured Values Attention US300PM will interrupt measurement if the internal memory is full and no other output option as storing has been activated If another output option serial output process output etc has been activated US300PM won t interrupt measurement Only the storage of measured data will be stopped The error message F6 DATA MEMORY OVERFLOW appears periodically 8 2 Offline Output of Measured Values Offline output is the output of the measured values stored in the memory The data can be sent e toa printer connected with the serial interface of US300PM e oras ASCII file to a terminal program e g HyperTerminal under Windows Select the SPECIAL FUNCTION program branch Confirm this by pressing ENTER Scroll through the list until you reach the PRINT MEAS VAL option Confirm your selection by pressing ENTER Special Funct 2 Print Meas Val Connect US300PM to a PC or a serial printer using a RS2323 cable USPA401 or equivalent The output of the stored measured values starts when ENTER is pressed This display indicates that the measured val ues are being transmitted The displayed bar graph informs you of the progress of noOoOoOoOooOo the data output US300PM_transfers the data in the format described in section 8 4 8 3 Online Output of Measured Values The output of measured values to a PC or a serial printer may also be realized directly during meas urement via seria
104. f the ball chains insert the last ball in the slot on the top of one of the runner mounting the transducers on a vertical pipe and US300PM is placed lower than the pipe it is rec ommended to slip the cable of the upper transducer under the chain in order to free it from me chanical strain e Pull the chain firmly and insert it in the second slot on the top of the runner There should be no air or air pockets between transducer surface and pipe wall e Fix the other transducer in the same way Adjust transducer distance again E T i F 60 a 0 mm10 20 30 50 605570 80 90 10 110 120 320 330 J 1 laii pi kmibonhonbannnhua nbo bo e Ehun unhnu ulimit nduutuul 1 i Yd 3 ot o S 3 al m SSS E 5 7 3 Positioning of the Transducers When the transducers are mounted confirm the trans ducer distance by pressing ENTER The positioning procedure of the transducers is started Transd Distance A 54 mm A bar graph S informs you of the amplitude of the s 000000 received signal a 0 lt gt O0O 54 mm Adjust the transducers by moving them slightly in order to obtain a maximal length of the bar graph If the signal received by the channel is sufficient for measurement the SIGNAL LED shows green if not it shows red In the last case adjust the transducers by moving them slightly until the SIGNAL LED shows green IM 01G05B02 01E 1st Edition Nov 5 20
105. formation on the display see section 6 3 Press ENTER to conclude the positioning of the transducers Attention Do not move the transducers any more Measure and enter the current precise transducer dis Transd distance tance 25 5 mm In this example 25 5 mm is the current precise trans ducer distance Confirm by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 91 14 Measuring the Sound Velocity of the Medium Following error messages might appear at this point ESTIMATED VALUE TOO LARGI l In both cases the entered estimated value for the sound velocity differs too much from the real sound ve locity of the medium The transducers were positioned to a disturbance or to an echo ESTIMATED VALU TOO SMALL Confirm error messages by pressing ENTER Enter a new estimate for the sound velocity As soon as you have entered an estimated value com patible with the real sound velocity of the medium the Sound velocity measurement starts c 1488 1 m s 14 1 Displayed Information Press keys 9 and 3 to obtain further information in the upper or lower line of the display see section 6 3 Current transducer distance L Curr Trans Dist ose Distance entered during the last positioning of the L 25 5 mm transducers The sound velocity is calculated using this value Better distance L Better distance 2 Transducer distance derived from the measured sound L 25 2
106. from the US300PM socket 84 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 13 Time programmable Measurement 13 Time programmable Measurement The time programmable measuring mode allows the user to program the beginning and the end of a measurement In stand by and with reduced power consumption US300PM will wait for the defined start time and then start the measurement automatically storage and output of measured values US300PM can also automatically stop the measurement The power consumption during standby is greatly reduced thus contributing to extend the operational time of the unit while working in battery mode The time programmable measurement allows you to record process data at a high storage rate at the needed time instead of having to measure the whole time at a low storage rate in order to have enough storage capacity left when needed 13 1 Enabling and Disabling The time programmable measuring mode can be enabled and disabled in the program branch SPE CIAL FUNCTION SYSTEM SETTINGS DIALOGS MENUS and is cold start resistant Select the TIME PROGR MEAS option Time progr Meas Select ON to enable the time programmable measuring off gt ON lt mode OFF to disable it Confirm by pressing ENTER 13 2 Input of the Start Time The operations for the time programmable measuring mode are only possible if in the pro gram branch OUTPUT OPTIONS e the storage of measured values or e one of the av
107. ga tion of the signal IM 01G05B02 01E 1st Edition Nov 5 2001 XX 23 5 Basic Measurement Correct Incorrect For a free inlet or outlet pipe section Select the measuring point at a location where the pipe cannot run empty Correct Disadvantageous 1 Correct Disadvantageous 4 li 4 For a vertical pipe Select the measuring point at a location where the liquid flows upward The pipe must be completely filled Correct Incorrect y 5 2 Input of the Parameters Next step is the input of the parameters of the pipe and of the medium They must be entered sepa rately for every available measuring channel The entered parameters can be modified at any time later by calling the program branch PARAMETER again 24 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement The values that can be given to the parameters of pipe and medium are limited by the characteristics of trans mitter and transducers US300PM will warn you the en 1100 0 MAXIMUM tered values do not respect these limits MINIMUM and MAXIMUM plausibility check In this example the entered outer diameter was too big so that US300PM displays the maximal value for this parameter 1100 0 mm in the case of transducers for medium sized pipes and a pipe with a wall thickness of 50 mm Outer Diameter 5 3 Input of the Parameters of the Pipe Note It is recommended to connect the transducers to the flowmeter before turning the flow
108. he OUTPUT OPTIONS program branch for the channel assigned to the output you want to activate In the ALARM OUTPUT display select YES to activate one no gt Y or several of the installed alarm outputs Alarm output The display that then appears contains tree scroll lists R2 FUNC lt typ mode FUNC for setting the switching condition Function MAX TYP for setting the alarm s holding behavior MODE for setting the alarm s state when idle Use keys amp 4 and 6 a to select an scroll list on the first line Qox Use keys 8 and 2 to select the corresponding setting on the second line Qars Press ENTER to confirm the selected settings at the end of selection 15 6 1 Setting the Alarm Properties FUNC MAX Alarm is activated when the measured value exceeds the up per limit switching condition MIN Alarm is activated when the measured value falls below the lower limit gt gt Alarm is activated when the flow changes its direction sign change of measured value ERROR Alarm is activated when measurement is impossible No function the alarm is always deactivated QUANTITY Alarm is activated when the totalizing function is selected and the totalizer reaches or exceeds the programmed limit in the flow direction determined by the sign 102 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 15 Process Outputs NON HOLD Alarm returns to idle state after approx 1 second if the switch ing condition is no
109. hickness Calculation for the two flow inputs Output assign ment Output damping Alarm Alarm items Output hold type Output contact di rection Data logging function Standard Specifications Wall thickness of the pipe possible using Wall thick ness probe optional Transfer function of the measured thickness to the pipe parameter Two values from average sum or difference of the channel A and channel B in puts are available freely Calculated values above ex cept for the wall thickness can be freely assigned to the actual outputs two channel independent out puts available 0 to 100 seconds Upper limit lower limit flow direction change quantity limit for batch operation error measurement impos sible Non hold or Hold Normal Normal Close Open or for maintenance purpose only Function Memory size Store measured values in the internal memory 27 000 values standard 100 000 values optional Note About 3 000 values of them are for internal data use Communication function for maintenance purpose only Type Connector Function RS 232 Cross Cable D sub 9 pin connector male On line Off line output of the measured values to per sonal computers Time programmable measurement function Function Power supply Power supply volt age Battery operating time Power consump tion 118 Automatic start and stop of the measurement using
110. hown after powering up US300PM the instrument switched itself off because of a low battery Corrective action Acknowledge this message by pressing ENTER The message appears every minute for five seconds Charge the battery see section 111 6 16 1 4 Errors when Working with Parameter Records Error message F14 Reason NO PAR STORED The display DELETE PAR REC of the program branch SPE Delete Para Rec CIAL FUNCTION was selected although no parameter records exist Corrective action This message is for information only Press ENTER to return to the main menu 16 1 5 Errors during Data Transfer Error message F16 Reason NO DATA l The special function PRINT MEAS VAL was activated al Print Meas Val though no measured values are stored in US300PM Corrective action Activate STORE MEAS DATA and repeat measurement Error message F17 Reason SERIAL ERROR There is a problem with the serial communication Print Meas Val Corrective action Check connections and make sure that the connected instru ment is ready to receive data 16 1 6 Error Messages during Date Time Setting Error message F18 Reason Date 31 04 2001 The date was not entered correctly INVALID DATE Corrective action Enter a valid date 112 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 16 Troubleshooting Error message F19 Reason Tim
111. ial electronics the incoming ultra sonic signals for their usefulness for the measurement and evaluates the plausibility of the measured values The microprocessor integrated in US300PM controls the complete measuring cycle eliminating distur bance signals by statistical signal processing techniques 3 3 Applications US300PM can always be used where the pipe wall and the liquid to be measured are sonically con ductive This is true for pipe walls consisting of homogeneous material and for liquids which carry only small amounts of solid particles or gas bubbles There is no dependency on electrical parameters of the fluid such as conductivity or dielectric constant ADVANTAGES e Non invasive methods permits safe measurement on aggressive or high temperature media flowing in closed conduits e Flow values can be measured without interruption of the process e The installation does not require any alterations to the pipe system e Straightforward mounting of the transducers and battery operated portable instrument allow flow measurements at various locations in the plant and on pipes with different diameters The meas urement does not influence the cross sectional area of the pipe nor the actual flow conditions 12 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 3 The Flowmeter 3 4 Description of the Flowmeter 3 4 1 Front Panel 2 x 16 digit LCD display backlit US300PM YOKOGAWA ULTRASONIC FLOWMETER CHANNEL A
112. ions US300PM e General Fluid Measured Measuring princi pal Pipe size Pipe and lining ma terial Flow velocity range Resolution Accuracy Measuring cycle Straight pipe run in the upstream Standard Specifications Liquid Turbidity lt 10 000 mg L fluid sound speed 800 to 3500m s Volume flow mass flow by setting density flow veloc ity sound speed in the fluid Wall thickness of the pipe when optional wall thick ness probe is available Transit time method using ultrasonic signal 25 to 6500 mm Carbon steel Stainless steel Grey cast iron Ductile iron Copper Glass PVC etc 0 01 to 25 m s 0 025 cm s 1 to 3 of reading depend ing on application flow velocity gt 0 8m s 0 008m s flow velocity lt 0 8m s depends on the flow profile 100 to 1000 Hz when only one channel input 10 to 50 diameters depend ing on the kind of the flow disturbance e Ultrasonic flowmeter US300PM Construction Housing material Water and dust proof Dimensions Weight Input Number of input channels Output Current output Aluminium powder coated IP54 EN60529 IPx4 JIS C 0920 115 x 276 x 268mm exclud ing a handle approx 3 9 kg incl battery set 2 Cannel A Channel B Both transducers and wall thickness probe can be con nected freely 0 to 2 outputs Range 4 to 20mA Flow velocity volume flow or sound speed in the liquid can be fr
113. is entered Unlike in the case of flow measurement the sound velocity has here a great influ ence on the result It influences the measuring result in an approximately linear fash ion Thus the input of a sound velocity 10 higher than the actual one gives a wall thickness approximately 10 too high The actual sound velocity of a material often differs substantially from the values published in the literature because it depends on the composition and on the manu When you go through program branch PARAMETER for the first time after switching to WTM mode the pipe material selected for clamp on flow measurement will appear in the selection list 12 2 2 Parameter Input for Measuring the Sound Velocity In order to determine the longitudinal sound velocity in a material the thickness of the test piece must be entered In the program branch OUTPUT OPTIONS select the Physic Quant 4 physical quantity c LONGITUDINAL for the channel on c LONGITUDINAL which the probe is connected Confirm by pressing EN TER 80 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 12 Wall Thickness Measurement US300PM asks for using the SERIAL OUTPUT option Serial Output Select YES or NO and confirm by pressing ENTER The gt NO lt yes main menu will appear In the program branch PARAMETER for the channel on Wall thickness which the probe is connected enter the wall thickness 5 2 mm of the test piece Values between 0 8 mm and 200
114. ise transducer distance entered This setting is recommended if you always measure at the same measuring point Transd Distance If you select TRANDUCER DISTANCE AUTO Transd Distance US300PM will only display the suggested transducer distance after the positioning of the transducers This 50 8 mm setting is recommended if the measuring point changes often 11 2 5 Time programmable Measurement Select ON to enable the time programmable measuring Time progr Meas mode see chapter 13 OFF to disable it off gt ON lt IM 01G05B02 01E 1st Edition Nov 5 2001 XX 73 11 System Settings 11 2 6 Error Value Delay EDIT enables you to enter an error value delay The error value delay is the time after which a special error value will be sent to an output when no valid meas ured values are available If you select DAMPING US300PM uses the value of the damping as error value delay Error val delay damping gt EDIT lt See section 15 1 1 iand 45 2 ifor more information on the behavior of US300PM in case no measured val ues can be obtained 11 2 7 Display of the Alarms State ON activates the display of the alarms state during SHOW RELAIS STAT MeGSUnEMent off gt ON lt See section 115 6 for more information on the alarms Note US300PM stores all changes now at the end of the configuration dialogue 11 3 Measurement Settings In the program branch SPECIAL FUNCTION select EM
115. ith the arrow formed by the engravings on the transducers The medium flows in direction of the arrow if the display shows a positive flow reading example 54 5 m h The medium flows against the arrow direction if the display shows a negative flow reading example 5 54 5 mh IM 01G05B02 01E 1st Edition Nov 5 2001 XX 35 36 5 Basic Measurement IM 01G05B02 01E 1st Edition Nov 5 2001 XX 6 Displaying the Measured Values 6 Displaying the Measured Values The physical quantity to be measured and used for storage and output can be set in the OUTPUT OP TIONS program branch as described in section 6 1 Default display setting is that the designation of the quantity of measurement selected in the OUTPUT OPTIONS is displayed on the first line and its value on the second line It is possible to temporary adapt the display to your requirements by select ing which quantity should be shown on the first and second line of the display see section 6 3 It is possible to have the measured values of only one selected channel displayed or to switch be tween the activated channels every second see section 6 2 6 1 Selection of the Physical Quantity and of the Unit of Measurement US300PM can measure the following quantities e volume flow rate e mass flow rate e flow velocity e sound velocity of the medium US300PM measures the flow velocity in the pipe directly The volume flow is calculated by multiplying the flow velocity wi
116. known dimensions e The comparative block should be even and plain e The thickness of the comparative block should be comparable to the maximum thickness of the test piece the pipe IM 01G05B02 01E 1st Edition Nov 5 2001 XX 81 12 Wall Thickness Measurement Attention The sound velocity of the material depends on the temperature The measurement of the sound velocity using a comparative block should thus be performed at the location where flow measurement will be performed later in order to minimize the effect of temperature fluctuations 12 3 2 Measurement of Sound Velocity This display appears if the sound velocity was selected C LONGITUDINAL as quantity of measurement for the channel on which the probe is connected When there is no valid meas ured value the unit of measurement and a question mark are shown on the lower display line m s Apply a film of acoustic coupling compound on the test C LONGITUDINAL piece the pipe Firmly press the probe against the test piece As soon as a valid measured value is obtained 5370 m s the measured thickness is displayed on the second line A tick is displayed on the right of the first line The measured value remains on the display when the probe is taken off the material 12 3 3 Further Information about the Measurement DISP Use keys 3 and 9 to switch ON or OFF the display of information about the measurement status DISP DISP Press key 9 to
117. l interface Connect US300PM to a PC or a serial printer using a RS2323 cable USPA401 or equivalent Select the OUTPUT OPTIONS program branch Confirm this by pressing ENTER Select the channel for which you want to activate the serial interface Work yourself through the scroll list confirming the al ready selected options by pressing ENTER until you reach the SERIAL OUTPUT option Select YES to activate the online output of the meas Serial Output ured data via the serial interface Confirm by pressing ENTER If you don t set the storage rate see section 8 1 2 the default rate or the last rate selected will be used no gt Y US300PM transfers the measured data via serial interface with the protocol structure described in sec tion 18 4 for the storage of measured data An acoustic signal is emitted every time a measured value is transmitted IM 01G05B02 01E 1st Edition Nov 5 2001 XX 51 8 Storage and Output of Measured Values 8 4 Format of the Serial Output The main measuring parameters are transmitted at the beginning of measurement then the line DATA followed by a line describing the contents of the columns of the table to come The actual measured values are transmitted afterwards One data line is transmitted per storage interval the storage rate can be set individually for each channel and per activated measuring channel The dummy line will be transmitted in case no measured values are availab
118. lay group will be Select the lining material or the entry OTHER MA TERIAL if the lining material is not listed Lining Carbon Steel Confirm by pressing ENTER It is possible to select which materials are to be dis played in the material selection list See section 10 1 If you have selected OTHER MATERIAL US300PM re c Material quests the entry of the sound velocity Enter the sound 3200 0 m s velocity for the lining material Values between 600 and i 6553 5 m s are possible Confirm by pressing ENTER some selected materials 26 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement Enter the pipe liner thickness Default value for this pa Liner Thickness rameter is 3 0 mm Confirm by pressing ENTER 3 0 mm Attention US300PM checks the correlation between the entered outer diameter the pipe wall and liner thickness The inner diameter outer diameter 2 x wall thickness 2 x liner thick ness should be within the specified inner diameter range for the transducers used An error message is displayed if this is not the case 5 3 5 Pipe Roughness The roughness of the inner pipe wall influences the flow profile of the liquid and is used for the calcula tion of the profile correction factor In most cases the pipe roughness cannot be exactly determined but must be estimated For your convenience we have compiled a list of roughness factors for a num ROUGHNESS request
119. le for that storage interval Example With a storage rate of 1 s 10 dummy lines will be transmitted when the measurement is restarted after an interruption of 10 seconds for positioning the transducers US300PM can transmit the columns given in table below ee Towne Ter ome p Toe Column 000000 00 00000000 00 00000000 00 format TIONS Measuring Quantity of Value of the to Value of the to Sound ve Signal am measurement talizer for the talizer for the locity of the plitude Contents selected in positive flow di negative flow di medium OUTPUT OP rection rection vated Refer to section 8 7 3 and 8 7 4 Tar ams gmi a ka Online output output during measurement In ONLINE mode columns will be generated for all quantities which may be output during measure ment The columns Q_POS and Q_NEG will be empty if the totalizer function has not been activated Since no totalizer can be enabled for the measuring quantity flow velocity no columns for total values will be generated Offline output output of stored measured values In OFFLINE mode columns will only be generated if at least one measured value was stored in the respective data set The columns Q_POS and Q_NEG are not generated if the totalizer function was not enabled Transmission parameter RS232 9600 bits per second 8 data bits even parity 2 stop bits protocol RTS CTS US300PM sends CRLF terminated ASCII
120. logs Menus In the program branch SPECIAL FUNCTION select the SYSTEM SETTINGS then the DIALOGS MENUS option 11 2 1 Input of the Pipe Circumference Pipe circumfer OLt gt ON lt Outer Diameter 100 0 mm Pipe Circumfer 314 2 mm Pipe Circumfer 180 mm Outer Diameter STk mm ON enables you to enter the pipe circumference instead of the pipe diameter in the program branch PARAME TER This setting is cold start resistant Confirm by pressing ENTER When the PIPE CIRCUMFERENCE option is ON US300PM will still first ask for the outer diameter in the program branch PARAMETER However you can switch to the CIRCUMFERENCE display by entering 0 zero and pressing ENTER The value displayed in the CIRCUMFERENCE display is calculated using the last displayed value of the outer di ameter For example 100 mm x z 314 2 mm You can now enter the circumference of the pipe The parameter limits for the circumference are calcu lated using the limits for the outer diameter During the next scroll through the program branch PA RAMETER the outer diameter corresponding to the en tered circumference will be displayed For example 180 mm 3 142 57 3 mm The edition of the circumference is of a temporary nature When the unit switches back to the display of the pipe circumference internal re calculation
121. m measurement duration is of 999 hours and 59 minutes or about 41 days Set duration Confirm by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 87 13 Time programmable Measurement US300PM displays the start time and the stop 04 00 04 15 time calculated using the entered duration 04 00 08 15 04 01 04 15 Use keys 9 and 3 to switch between the display of 7 the stop time and the display of the duration of meas 04h 00m 00s urement on the lower display line Press any key except BRK to go to the next option of the MEASURING program branch 13 4 Measuring with the Time programmable Mode When the time programmable measuring mode is activated the output options are defined and the start and stop time are set e Start measurement in the usual way The instantaneous measuring values are displayed and stored and or transmitted depending on the selected output options e Activate all settings needed for the programmed measurement totalizers etc e Press ENTER to start the countdown The current measurement will be interrupted and the countdown started Note The countdown can be stopped at any time by pressing key BRK The memory requirements for the operational activities to come can now be calculated If a stop time or a measurement duration has been defined and the storage of measured values is activated US300PM checks if the free memory capacity is sufficient to store the m
122. m Yokogawa or an authorized dealer Take care to plug correctly the connector which prevents to reverse the polarity Before recharging discharge the battery set as far as possible in order to avoid over charging US300PM signalizes that the battery is discharged as follows LOW BATTERY 2 7 Storage Always pack the instrument and its accessories into the respective compartments of the transport case after measurements have been performed Wipe the transducers clean of traces of acoustic coupling compound Tilt the instrument handle towards the upper front face of US300PM and not onto the top side of the housing This avoids scratches on the enclosure caused by the instrument handle during transport Avoid excessive bends of transducers cable especially when closing the transport case top cover IM 01G05B02 01E 1st Edition Nov 5 2001 XX 9 10 2 Handling Precautions IM 01G05B02 01E 1st Edition Nov 5 2001 XX 3 The Flowmeter 3 The Flowmeter 3 1 Overview US300PM is a flowmeter that uses ultrasonic signals to measure the flow in pipes or conduits It can measure the following quantities the flow velocity the volume and mass flow rate and their totalization the sound velocity of a medium With an optional probe US300PM can also measure the thickness of pipe walls The transducers can be operated at temperatures between 30 C and 130 C With specially designed high temperature transduc
123. medium correct A wrong value of the sound velocity could lead you to identify the ultrasonic signal that was reflected on the pipe wall as the measuring signal The measured flow rate would then always be very small or fluctuate around zero Is the defined upper limit for the flow velocity maybe too low The measured flow velocities that are greater than the defined upper limit are ignored and marked as outlier All quantities derived from the flow velocity are equally ignored If most measured values are higher than the upper limit the totalized values the volume flow rate for example will be too small See section 7 33 114 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 16 Troubleshooting e ls the defined cut off flow maybe too high All flow velocities below the cut off are set to zero All quantities derived from the flow velocity are equally ignored If most measured flow velocities are below the cut off flow velocity US300PM will display a flow rate of zero most of the time and the totalized values will always be too small See section 7 44 e Check the set pipe roughness see section 5 3 5 e ls the flow velocity below the measuring range limit of 0 01 m s see specifications in Appendix A If the measured values are still wrong after these controls contact your local Yokogawa sales office IM 01G05B02 01E 1st Edition Nov 5 2001 XX 115 116 16 Troubleshooting IM 01G05B02 01E 1st Edition Nov 5 2001 XX A Standard Specificat
124. n of gas bubbles or solid particles in the flowing medium too high Particles scatter and absorb ultrasounds and therefore attenuate the signal Measurement is impossible if the pro portion of solid particles or gas bubbles is of 10 or more If the latter is less than 10 measure ments might be possible under certain conditions Are there deposits on the inner pipe wall These deposits might attenuate too heavily the ultrasonic signal Is the pipe lined Lined pipes may cause measurement difficulties if the lining is not bonded cor rectly to the pipe wall or consists of a material which has bad acoustic characteristics Try measur ing on another section of the pipework or contact your local Yokogawa sales office What is the pipe on which you measure made of Measurements on porous pipe materials e g concrete or cast iron are only possible under certain conditions Contact your local Yokogawa sales office How big is the viscosity of the medium Media with high viscosity strongly attenuate the ultrasonic signals Measurements on media with viscosity values of more than 1000 mm2 s are only possible under certain conditions Contact your local Yokogawa sales office Are the transducer used appropriate for your application Is the temperature maybe too high higher than 130 C for transducers for medium temperatures for example 16 4 Measuring Data Substantially Differ from the Expected Values Is the sound velocity entered for the
125. n the medium It will then output the defined error value Following decisions have to be made e Which value error value shall be recorded and transmitted to the output during this time interval e Should this error value be transmitted as soon as no measured values are available or should the last measured value be transmitted during a certain delay before the error value is transmitted Error value option Result Minimum Output of the lowest possible value lower limit of the output range Hold last value Output of the last measured value Maximum Output of the highest possible value upper limit of the output range Other value Output of a value to be defined within the physical limits of the output Example The flow volume was selected as source item for the current output the current output s range was set to 4 20 mA the error value delay ty to a value greater as zero Measurement of the flow volume is impossi k v m3 h ble during the time interval to to t4 22 What signal should be output during this time interval t t to ti Selected error value option Output signal Error value t Minimum 4 0mA Error value 2 Hold last value Error value af Maximum 20 0 mA IM 01G05B02 01E 1st Edition Nov 5 2001 XX 97 15 Process Outputs Selected error value option Output signal Error value Other value Error value 2 00 Select an error valu
126. nterval for storage and online output Confirm your selection by pressing ENTER Further explanations 8 The storage mode does not influence the continuously operating process interfaces e g current output In AVERAGE mode all primary measuring quantities are averaged In case no mean value could be calculated over the complete storage interval while the unit was in AVERAGE mode the mean value for this interval will be marked as invalid In the ASCII file with the stored measured values will appear for invalid mean values and the associated quantity of measurement There will not be an indication of how many momentary measured values a valid mean value consists of 7 2 Storage of the Totalizer It is possible to store the value of the currently displayed totalizer only or one value for each flow direc tion This setting is cold start resistant Inthe SPECIAL FUNCTION SYSTEM SETTINGS STORING program branch select the QUAN TITY STORAGE entry Select ONE if US300PM should only store the displayed Quantity Storage totalizer Select BOTH to enable storage of the totalizer SONE lt both value in function of the flow direction Confirm by pressing ENTER Further explanations 8 In the SPECIAL FUNCTION SYSTEM SETTINGS STORING program branch select STORE US300PM will store the totalizers only if they are activated and the data logging function
127. o separate the extension again 5 7 2 3 Chain Repair Set e The fastening clips of the chain repair set are for connecting repairing broken chain elements or making the chain longer e The clasps of the repair set are for the coupling of the spring with the chain if the integrated anchor is missing 5 7 2 4 Mounting with Fixtures e Insert the transducers in the mounting fixtures Turn the screw on top of the fixtures by 90 in order to engage and lock its extremity in the groove of the inserted transducer e Apply acoustic coupling compound to the contact surface of the transducers e Insert the ruler in the lateral slots of the fixtures see drawing below Adjust the transducer dis tance to the distance suggested by US300PM and fix the transducers with the small plastic screws on the transducer cable side of the fixture Til M 60 i i mmi0 20 30 50 60 70 80 90 4c 110 1201 L320 330 S hihihihihi boni eatinlontinbononbniibtnbat tonba Sbn 5 p e i 32 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement For the magnetic fixtures e Place the fixtures ruler assembly on the pipe at the measuring point There should be no air or air pockets between transducer surface and pipe wall e Adjust transducer distance again For the standard fixtures e Place the fixtures ruler assembly on the pipe at the measuring point e Take the spring end of one o
128. oY 03h 58m 17s giving amongst others the time remaining until auto 35 62 m3 h matic stop V If this message is missing no stop time has been pro grammed Note The programmed measurement can be stopped at any time by pressing key BRK IM 01G05B02 01E 1st Edition Nov 5 2001 XX 89 13 Time programmable Measurement US300PM will automatically stop the programmed measurement in the following cases e the programmed stop time has been reached STOP MEASURE AT shortly after this message is shown US300PM switches off automatically if in battery mode 30 04 08 15 00 J yn e the memory is full and no other output option was activated VALUE MEMORY OVERFLOW the battery is empty shortly after this message is shown US300PM switches off automatically if in battery mode 13 5 Storage of Measured Values When the storage function is activated the measured values will be stored in memory after meas urement is started These stored values will be kept when the measurement is interrupted key BRK to start the countdown or during countdown However when the programmed measurement is started at the programmed start time all values stored before the countdown will be disregarded The first measured value recorded after the automatic start is the first value of the current measuring data set The start time will be stored as date and time reference for the current measuring dat
129. obtain information about the signal SIGNAL IS GOOD eae 3 51 mm If the signal is sufficient for measurement the mes sage SIGNAL IS GOOD appears The SIGNAL LED shows green If the signal is sufficient for measurement the mes ERROR SIGNAL sage ERROR SIGNAL with a number ap mm pears The SIGNAL LED shows red is a number Press key 9 again The bar graph indicating the quality of the signal o will appear If the signal quality is insufficient for measurement UNDEF appears on the bar graph The SIGNAL LED shows red In this case adjust the transducers by moving them slightly until the SIGNAL LED shows green Press key 3 to have the transit time LZ in DISP Wall thickness nanoseconds displayed LZ ns 82 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 12 Wall Thickness Measurement 12 3 4 Failure of Measurement If no valid thickness can be obtained e Take the probe off the test piece the pipe e Clean the probe and the area of the test piece where the measurement takes place e Apply a film of acoustic coupling compound onto the test piece and or the probe e Firmly press the probe against the test piece e Try measuring again e Use a small amount of coupling compound Always apply the coupling com pound in the same way to avoid errors caused by different film thickness e Apply constant pressure when pressing the probe against the test pie
130. or this purpose During battery charging the battery set must remain in the battery compartment of the instrument Connect the power adapter battery charging unit to the flowmeter make sure that the plug snaps in correctly and to the mains In the main menu select SPECIAL FUNCTION Special Funct CHARGE BATTERY Charge Battery Confirm by pressing ENTER Enter the desired charging time of the battery maxi Charge Time mum 15 h 15 0 Confirm by pressing ENTER The charging time of the battery is 15h The charging current is 400 mA The selected charging time is displayed in parenthesis Battery Charging on the left of the display The remaining charging time is 15 00 12 30 displayed on the right A is displayed every second to signal that the charg ing process is running During battery charging the battery status LED is red When you press ENTER the charging process contin ues in background mode and the following display ap pears Select YES and confirm by pressing ENTER to stop the Stop Charging battery charging process The main menu will appear no gt Y Select NO and ENTER to continue the battery charging process in the background The main menu will appear IM 01G05B02 01E 1st Edition Nov 5 2001 XX 77 11 System Settings This message will appear when the battery charging process is completed provided it did not run in back ground mode Batt Ch
131. ored measured values have been deleted and a new measurement is started with only one quantity of measurement on one channel and no totalization approx 27 000 measured values can be stored in the data set of that measurement Proceed as follows to find out how much memory is still available for storage Select SPECIAL FUNCTION INSTRUM INFORM Confirm by pressing ENTER Special Funct 9 Instrum Inform The type designation and the factory number of your in US300PM 00000999 strument are given on the first line FREE 18327 The memory still available for data storage is given on the second line Here 18327 measured values can still be stored Press two times ENTER to return to the SPECIAL FUNCTION program branch IM 01G05B02 01E 1st Edition Nov 5 2001 XX 55 56 8 Storage and Output of Measured Values IM 01G05B02 01E 1st Edition Nov 5 2001 XX 9 Working with Parameter Records 9 Working with Parameter Records Parameter records are data sets that contain all necessary information to perform a certain meas urement task e the pipe parameters e the transducer parameters e the medium parameters e and the output options Working with parameter records will make repeated measurement tasks easier and faster Parameter records can be created before each measurement and then stored using the program branch SPECIAL FUNCTION see section D 1 US300PM can store up to 14 different parameter re cords If y
132. ou wish to work with a stored parameter record you need to load that record as Current Record section 9 2 The function ParaPool described in section 9 4 enables you to store up to 80 short records in an in dependent memory location under a specific name and ID number A short records contains the main pipe and media parameters Note No records are stored in a new instrument Records must be entered manually When records have been created this display will al ways appear after selection of the PARAMETER program Par Record 01 branch of a measuring channel Parameter from If the ParaPool function is not activated you can e select a parameter record to be loaded and edited or e select CURRENT RECORD to edit the current parameters as usual If the ParaPool function is activated you can e select a parameter record to be loaded and edited or e select CURRENT RECORD to load a short record or e select CURRENT RECORD and enter 0 zero or press key to edit the current parameters as usual 9 1 Saving Parameters in a Parameter Record The parameters that you wish to save in a parameter record must first be entered as described in sec tions 5 31and 5 4 Afterwards they can be stored in a parameter record In the program branch SPECIAL FUNCTION select the Special Funct i STORE CURRENT RECORD option Store Curr Rec Confirm by pressing ENTER
133. play 16 digits per line The keyboard features three function keys and 12 keys for numerical data input cea Go roe Several keys have double functions They can be used 7 8 9 for INPUT as well as for SELECTION LZ In SELECTION mode for example the arrow shaped e4 5 6 N numerical keys operate as cursor keys 1 2 3 In INPUT mode they can be used for the input of num M hor EEE bers and characters 0 Hen 3x OFF ON BRK ENTER t RESET IM 01G05B02 01E 1st Edition Nov 5 2001 XX 15 4 Getting Started 4 2 1 Key Operations General functions ON CN 1 x C Switches the flowmeter ON Switches the background lighting ON OFF BRK arr c ENTER RESET Press these keys simultaneously to recover from an error This ee has the same effect as restarting the unit Data will not be affected oN IINIT coldstart Pressing these keys simultaneously while switching the flowmeter BRK n c ON until the main menu appears will initialize US300PM Most parameters and set tings are reset to the factory default values The memory will not be cleared 3 x BRK Switches the flowmeter OFF In battery mode an automatic switch off routine is active If the flowmeter has been expecting a keyboard action for a period of 10 minutes an automatic switching off process will be activated Interrupts the measurement and calls the main menu Attention Be careful not to interrupt an ongoing measurement by inadvertentl
134. ple ee eeeceeeeneeeeereeeeneeeeeees 11 Media IM 01G05B02 01E 1st Edition Nov 5 2001 XX Index CETINING hehe kha ieee eee 65 67 Cel Ctling sce ee a eiai 68 Medium liS areae aeaaaee Ea aisah 63 Medium parameters input sssssseseneeeeseerere ne 27 Memory capacity 0 eeeeceeeesneeeeeeeeeeesteeeeeeaaes 88 Model COdG i iseni nrinn ia aE 121 Online outp t ii eei rii 51 Output format cccceececeeeeeeeeceeeeeeeeseeeesaeeeeeeeees 52 Output of measured values eee eee ee eeeeeeees 51 O tp t range sisien iiai nin 96 OUutputto a POr ketnent 51 Output to a printer eneeier 51 Parameter reCords ecenin 57 deletion easing a e EE R 58 ParaP ooh ieni r aeii n 59 creating a FECOId ccccececceceeeeeeeeeeeeeeeeeeeenees 61 SnabliNg ahea a ia a chads 59 loading a record ieee 59 Partitioning seir a aani 65 Pipe circumference 2 ecccceececeeeeeeeeeeeeeeeeeenees 25 PO WING e E ivhertsedenstcaces 26 Pipe lining thickneSS ccceeeeeeeeteeeeeeeeeeeees 27 Pipe Material isic 26 Pipe outer diameter cccceceeeeeeecteeeeeeeeeeeees 25 Pipe TOUGNNESS 4 2 e cdseteeieets hindi ea 27 Process OUtDUtS 0 eee eeeeeeeeenneeeeeeeeeeeneeeeeenaes 95 activating a current output oo eee 100 activating a frequency output eee 100 activating a pulse output 101 activating an alarm output eee 101 CIRCUITS 25 sees cuts Seste ata E E T 99 Configuration heehee eee
135. ranch OUTPUT OPTIONS are for the activation of the different output options process outputs data logger output to a PC etc 6 2 Toggling between the Channels US300PM undertakes measurements on all activated measuring channels in a quasi parallel manner The multiplexer switches every second between the activated channels to measure the flow The SIGNAL LED of an activated channel flashes as the measurement takes place All process outputs as well as the serial interface continuously get the measuring results of the assigned channels US300PM can display the measured values of the different channels in two different modes AutoMux and HumanMux You can toggle between the AutoMux and HumanMux modes with key ox 6 2 1 AutoMux Mode In Auto Mux mode the display is synchronized with that channel where the measurement is actually taking place This channel is displayed on the upper left corner of the display A B A Volume Flow B Flow Velocity 54 5 m3 h 1 25 m s For this channel US300PM displays the measured values as configurated in the OUTPUT OPTIONS program branch see section 6 1 6 2 2 HumanMux Mode In HumanMux mode US300PM displays the measured values for one measuring channel only Meas urement still takes place on all other activated channels without display of the results US300PM shows the selected measuring channel on B Flow Velocity the upper left corner of the display A B 1
136. ressing BRK stops measurement and brings you back to the main menu All alarms are switched to their de energized state independently of their programmed idle state 15 6 5 Alarm Outputs in the Parameter Record The configuration of the alarm outputs will be stored with the current parameter record program branch SPECIAL FUNCTION Thus the configuration of the alarm outputs will also be loaded when a stored parameter record is loaded 15 6 6 Alarm Outputs during Transducer Positioning When you have confirmed the transducer distance in program branch MEASURING and the positioning of the transducers begins bar graph display all alarm outputs switch to their programmed idle state When you return to the bar graph display during measurement the alarm outputs will switch back to their programmed idle state An alarm output of the type HOLDING which has switched during the pre vious measurement will remain in its programmed idle state after completion of the transducer posi tioning if the switching condition is not met any more You can obtain the same result by pressing key Cc during measurement The switching of the alarms into their programmed idle state is not indicated on the display 15 6 7 Alarm Output Operation and Update Alarms with switching condition MAX or MIN will be updated once per second at most in order to avoid humming a permanently fluctuating measured value around the limit constantly triggering the alarm
137. rms of the unit of measurement selected at the time the quantity limit was set The limit value stays the same even if the quantity and or unit of measurement is changed If you change the unit of measurement also change the quantity limit Example You have entered a limit value of 60 0 m h then changed the unit of meas urement to m min You should also change the quantity limit from 60 0 m h to 1 0 m min 15 6 3 Apparent Delays when Switching Alarm Outputs US300PM rounds the measured value and totalizer value with a precision of two decimal places be hind the comma before they are displayed However US300PM compares the limits with the non rounded values This might cause an apparent output switching delay especially when extremely small changes of the measured value take place smaller than the equivalent of two decimal places behind the comma In these cases remember that the accuracy of the output switching is higher than the accuracy of the display 104 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 15 Process Outputs 15 6 4 Reset and Initialization of the Alarms e After a coldstart all alarm outputs will be initialized They will then be in the following state FUNC OFF TYPE NON HOLD MODE NO CONT LIMIT 0 00 e During measurement pressing key will switch all alarms to their idle state However all alarms which switching condition is still met will switch back into their active state after 1 second e P
138. rogram entries and keys will appear in capital letters Program entries are in type writer characters PARAMETER Submenus are separated form the main menu entry by a backslash To get to the SPECIAL FUNCTION SYSTEM SETTINGS MEASURING menu for example e Select the SPECIAL FUNCTION program branch and confirm this selection by pressing ENTER Qo 2 e Using the 8 and 7 keys select the SYSTEM SETTINGS option of the scroll list and confirm by pressing ENTER Qon 2 Qore 5 e Using the 8 and pressing ENTER keys select the MEASURING option of the scroll list and confirm by 4 3 3 Display Templates US300PM displays the result of keyboard entries program steps and shows measured values on four different display templates 1 Horizontal SELECTION MODE US300PM requests a horizontal selection The selected gt PAR lt mea opt sf menu is displayed in capital letters and between arrows a and 6 Y Parameter Use keys for scrolling 2 Vertical SELECTION MODE scroll menu US300PM starts the scroll menu at that display which you left last US300PM requests a vertical selection This is indi Meas Quant o cated by the arrow at the upper right of the display f Aa 2 Mon ane SEO Use keys 8 and for scrolling 3 INPUT MODE US300PM requests the INPUT of data The cursor flashes at the left of the input display line Use numeric keys the decimal point
139. s the input of a value for the selected pipe or lining material Change the suggested value according to the condition of the inner pipe wall Default value of this parameter is 0 1 mm Confirm by pressing ENTER Note Only roughness values between 0 0 and 5 0 mm are allowed 5 4 Input of the Parameters of the Medium After you have finished entering the pipe parameters US300PM asks for the medium parameters The medium parameters required for measurement are e the minimum and maximum sound velocity for the medium e the kinematic viscosity of the medium e the density of the medium only if the output option MASS FLOW is activated e the temperature of the medium ten used Select the medium or the entry OTHER MEDIUM if Medium g the medium you want to measure is not listed Water Confirm by pressing ENTER It is possible to select which media are to in the medium selection list See section 0 1 displayed temperature section 5 4 4 If you have selected OTHER MEDIUM US300PM requests the entry of the minimal and maximal sound velocity the kinematic viscosity and the density of the medium 5 4 1 Sound Velocity US300PM uses the sound velocity of the medium for the calculation of the distance between the transducers at the beginning of the measurement As the sound velocity depends on the composition and the temperature of the medium a range of possible values for the sound velocity must
140. slight rounding errors may occur Example Entered circumference 100 mm gt displayed outer diameter 31 8 mm When the unit switches back to the circumference internally a value of 99 9 mm will be displayed 72 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 11 System Settings 11 2 2 Input of the Fluid Pressure US300PM can take into account the dependency of fluid properties on pressure Inthe FLUID PRESSURE display select ON if you wish Fluid pressure to enter the fluid pressure in the program branch PA off gt ON lt RAMETER The value of the fluid pressure must lie be tween 1 and 600 bar If you select OFF US300PM uses a fluid pressure of 1 0 bar for all pressure dependent calculations 11 2 3 Input mode for the Measuring Point Designation Select 1234 if you wish to identify the measuring Meas Point No points using only numbers point and dash gt 1234 lt WED Select V if you wish to enter the measuring point designations using the ASCIll editor 11 2 4 Display of the Last Entered Transducer Distance If you select TRANDUCER DISTANCE USER Transd Distance US300PM will display the last precise transducer dis auto SUSER lt oo have entered after positioning of the trans If the suggested transducer distance and the entered distance are not identical the suggested value is then displayed in parenthesis on the left followed by the last 50 8 0 0 mm prec
141. ssing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 10 Libraries US300PM displays as a scroll list on the second line all gt Remove Materiat materials media of the current selection list Rubber Select the material medium to be removed and press ENTER The material medium is deleted from the selec tion list Note User materials media are always part of the current user defined selection list They cannot be deleted 10 1 4 Deleting all Materials Media from the Current List Select REMOVE ALL and press ENTER to remove all Material materials media from the current selection list User ma terials and media will not be removed gt Remove a l Note User materials media are always part of the current user defined selection list They cannot be deleted 10 1 5 Adding all Materials Media to the Current List Select ADD ALL and press ENTER to add all materi Material list i als media of the internal data bank to the current selec gt Add all tion list 10 2 Defining New Materials and Media It is possible to add self defined materials or media user materials or user media to the internal data bank These entries are stored in the coefficient storage User area PARAMETER The storage of user defined materials and media is cold start resistant and remains ac tive even if the unit has been switched off The basic properties of a medium are its maximal and minimal sound velo
142. sturbance source 90 elbow Inlet Outlet L gt 10D L gt 5D L gt 5D le L gt 10D ge a N Disturbance source 2 x 90 elbows in one plane Inlet Outlet L gt 25D L gt 5D H L gt 25D os Disturbance source 2 x 90 elbows in different planes Inlet Outlet L gt 40D L 5D a L gt 40D ce z Disturbance source T section Inlet Outlet L gt 50D L gt 10D L gt 10D w L gt 50D el 22 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 5 Basic Measurement Disturbance source diffuser Inlet Outlet L gt 30D L gt 5D L gt 30D L gt 5D F ES GaP Disturbance source reducer Inlet Outlet L gt 10D L gt 5D j L gt 10D L gt 5D H P Fea Disturbance source valve Inlet Outlet L gt 40D L gt 10D L gt 40D L gt 10D saps g Disturbance source pump Inlet L gt 50D L gt 50D 5 1 3 Points to Avoid Try to avoid measuring locations e inthe vicinity of deformations and defects of the pipe e or in the vicinity of weldings Avoid locations where deposits are building in the pipe Respect the recommandations given below For an horizontal pipe Select a location where the transducers can be mounted on the side of the pipe so that the sound waves emitted by the transducers propagate horizontally in the pipe Thus the solid particles depos ited on the bottom of the pipe and the gas pockets developing at the top won t influence the propa
143. t YES US300PM uses the uncorrected flow velocity only if the physical quantity FLOW VE LOCITY is selected in the OUTPUT OPTIONS US300PM determines all other physical quantities volume flow mass flow etc with the corrected flow velocity During measurement FLOW VELOCITY will be displayed in capital letters indicating that the dis played flow velocity is uncorrected Confirm your selection by pressing ENTER If you select ABSOLUTE the user defined cut off flow rate will not depend on the sign identifying the direc tion of flow There is only one limit to be set The ab solute value of the measured value will be compared with the cut off flow If you select SIGN the user defined cut off value will depend on the sign identifying the direction of flow Two independent limits can be entered for positive and negative flow velocities see section 7 4 If you select FACTORY US300PM will use the factory default setting of 5 cm s for the cut off flow see sec tion 7 4 Select USER to define the cut off flow rate in absolute or sign dependent input format Confirm by pressing ENTER This display appears only if you have selected the USER CUT OFF FLOW Enter here the cut off flow for positive measured values Should the measured value fall below this threshold a flow velocity of 0 cm s will be used for further calculation This display appears only if you have selected the USER CUT OFF FLOW Enter here the
144. t true any more alarm s holding be havior Alarm stays activated even if the switching condition is not true any more Cc During measurement this key will switch all alarms to their idle state If the switching condition is still met however the alarms will switch back into their activated state after 1 second MODE NO Cont Alarm is energized when the switching condition is true the alarm s state when alarm is de energized when idle NO normally open idle Alarm is de energized when the switching condition is true energized when idle NC normally closed Brk ATTENTION This key will bring you back to the main menu All alarms are switched to their de energized state inde pendently of their programmed state 15 6 2 Setting the Limit Values For the functions MAX and MIN If you have selected the switching condition MAX or MIN under FUNC you can input the desired limit values for the alarm outputs as follows Select in the INPUT scroll list which physical quantity should be used for comparison Available options are e the volume flow e the signal amplitude e the sound velocity for the medium Confirm by pressing ENTER US300PM will then ask for the value of the limit Function Display and comparison MAX High Limit Example 0 00 m3 h High limit 10 0 m h The limit will be exceeded by a measured value of 9 9 m h or 2 5 m h The alarm Comparison won t switch if for inst
145. ta set of that measurement Note US300PM emits an acoustic signal every time a measured value is stored 8 1 Measuring with the Data Logger Function 8 1 1 Activating Deactivating the Data Logger Function Select the OUTPUT OPTIONS program branch of the channel for which you want to activate the data logger Output Options imation for Channel A Confirm by pressing ENTER Select YES to activate the data logger function Store Meas Data Confirm by pressing ENTER no gt YES lt IM 01G05B02 01E 1st Edition Nov 5 2001 XX 49 8 Storage and Output of Measured Values 8 1 2 Setting the Storage Rate The storage rate is the frequency at which US300PM outputs or stores the measured values It is used for storing the measured data and for the serial output in online mode and can be set for each meas uring channel independently Note If you don t set the storage rate the default rate or the last rate selected will be used If whether the storage of measured values nor the serial output is activated US300PM will omit the display group OUTPUT OPTIONS STORAGE RATE The storage interval in seconds should be at least equal to the number of activated measuring channels When 2 measuring channels are activated the storage rate for a channel should be at least 2 seconds Select the OUTPUT OPTIONS program branch of the Output Options channel for which you want to set the storage rate for
146. ted from the data given for pulse value and pulse width INFO Max Value Confirm by pressing ENTER 31 3 m3 h Attention If the actual flow exceeds this Max Value the pulse output will not function correctly In such a case the pulse value and pulse width should be changed to accommodate the flow conditions 15 6 Activation of an Alarm Output Note The display ALARM OUTPUT only appears in the program branch OUTPUT OPTIONS if an alarm output has been installed A maximum of 3 alarm outputs operating independently of each other can be assigned to a measuring channel The alarm outputs can be used e for the output of status information about the ongoing measurement e orto start and stop control pumps electrical motors or other equipment You may assign one of the following functions to each of the alarm output IM 01G05B02 01E 1st Edition Nov 5 2001 XX 101 15 Process Outputs Function Alarm is activated when Upper limit the measured value exceeds the upper limit Lower limit the measured value falls below the lower limit Sign change the flow changes direction Quantity limit a totalizer has reached a predefined limit e g for batch operations Error NO measurement is possible No function The alarm is always de energized Further settings for the alarm output are e the holding behavior holding non holding and e the status in idle state normally open closed Select t
147. th the cross sectional area of the pipe the mass flow by multiplying the volume flow with the density of the medium For the measurement of the sound velocity the parameter record of the actual measuring channel outer diameter wall thickness is used In the main menu select the program branch OUTPUT par mea gt OPT lt sf OPTIONS Output Options Select the measuring channel for which you want to set Output Options the output options for Channel A Confirm by pressing ENTER Select the desired quantity of measurement in the scroll Physic Quant 2 list Volume Flow Confirm by pressing ENTER The selection of the physical quantity SOUND VELOCITY immediately ends the program branch OUT PUT OPTIONS because during the measurement of the sound velocity the process outputs serial in terface and internal data memory do not operate The measurement of the sound velocity is described in chapter 14 For all quantities of measurement other than SOUND VELOCITY a scroll list of the available measurement units is displayed refer to Standard Specifications The previously selected unit is shown on the second line Select the unit of measurement in which you want to have the chosen physical quantity displayed and output Confirm by pressing ENTER IM 01G05B02 01E 1st Edition Nov 5 2001 XX 37 6 Displaying the Measured Values You can now return to the main menu by pressing BRK The next displays of the program b
148. tion online output storing process outputs etc can also be done with the values furnished by a reckoning channel 7 5 2 Characteristics of a Reckoning Channel e The parameterization of a reckoning channel program branch PARAMETER differs from the parameterization of a physical channel Instead of entering the parameters of the measuring point pipe medium you have to decide which channels should be reckoned and how e The values of a reckoning channel cannot be attenuated You have to set up the required damping factor separately for each of the two implied measuring channels program branch OUTPUT OPT IONS e You can define two cut off values for each reckoning channel These cut off values are not based on the flow velocity as for physical channels but are defined in the unit of that quantity of meas urement which was selected for the respective reckoning channel program branch OUTPUT OP TIONS During measurement the reckoned values are compared with the set cut off values and set to zero if necessary 44 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 7 Advanced Measuring Functions e A reckoning channel provides a valid measured value if both of the input channels provide valid measured values 7 5 3 Parameterization of a Reckoning Channel In the program branch PARAMETER select a reckoning Parameter channel and confirm by pressing ENTER For Channel US300PM displays the actual reckoning func
149. tion Press Calculation any key to edit the function Y A B Three configuration scroll lists are displayed on the first gt CH1 lt funct ch2 line A B e CH1 forthe selection of the first input channel e FUNCT for the selection of the reckoning function e CH2 for the selection of the second input channel Select a configuration scroll list using keys ad and 6 The options of the selected list are displayed on the AN gt CH1 lt funct ch2 second line Use the keys 8 and 2 to scroll SQore A B through this list All physical channels of the flowmeter as well as their absolute value can be selected as input channel The following reckoning functions can be set Ch1 gt FUNCT lt ch2 l Difference Y CH1 CH2 IA 2 IBI Sum Y CH1 CH2 2 Y CH1 CH2 2 Confirm the reckoning function by pressing ENTER 7 5 4 Output Options for a Reckoning Channel Select a reckoning channel in the program branch OUT Output Options o PUT OPTIONS for Channel Me Confirm by pressing ENTER Select the physical quantity to be measured Physic Quantal Confirm by pressing ENTER Mass Flow Make sure that the quantity of measurement that you select for the reckoning channel can be calcu lated out of the quantities of measurement of the two input channels selected for the reckoning func tion The following table shows which combinations are possible IM 01G05B0
150. tion 5 1 1 e and in which a fully developed axi symmetrical flow profile is observed see section 5 1 2 The correct positioning of the transducers is an essential condition for error free measurement It guarantees that the sound signal will be received under optimal conditions and evaluated correctly However because of the variety of applications and the different factors influencing measurement there can be no standard solution for the positioning of the transducers The correct position of the transducers will be influenced by the following factors e the diameter material lining wall thickness and form of the pipe e the medium flowing in the pipe e the presence of gas bubbles in the medium Avoid the locations described in section 5 1 3 Make sure that the temperature at the selected location is within the operating temperature range of the transducers see Standard Specifications in Appendix A 5 1 1 Acoustic Propagation Acoustic propagation can be assumed when pipe and medium do not attenuate the sound so strongly that the signals get completely absorbed before reaching the second transducer How strong the sound attenuation is in a specific system depends on e the kinematic viscosity of the liquid e the proportion of gas bubbles and solid particles in the liquid e the presence of deposits on the inner pipe wall e the wall material Make sure that following conditions are respected at the measuring point e the pipe
151. tion boundary of the probe must be per Vl pendicular to the longitudinal axis of the object being _ lt coum tested During measurements on pipes or cylindrical containers Probe the probe must be pressed as centrally as possible against the object Applied pressure must be constant Acoustic partition boundary Longitudinal axis of the pipe IM 01G05B02 01E 1st Edition Nov 5 2001 XX 83 12 Wall Thickness Measurement 12 3 6 Storage Transfer of Thickness Value Press ENTER to end measurement run and store or output the measured value The following display appears when a valid measurement of the wall thickness has been obtained and one of the available output options is activated Select YES to store and or output the obtained meas Transfer Data ured value no gt Y e f you have measured the wall thickness this value will be transferred into the current parameter record for the clamp on flow measurement The pipe mate rial of the parameter record will be replaced by the material used for the thickness measurement e f the serial output is activated the measured value will be transmitted 12 3 7 Leaving the WTM Mode You can leave the wall thickness measurement mode as follows e Disconnect the sensor probe from the US300PM socket while in program branch MEASURING Otherwise e Return to the main menu of the WTM option by pressing BRK e Disconnect the plug
152. to a higher attenuation of the signal in the flowing medium The re flections on the opposite pipe wall and eventual deposits on the inner pipe wall cause additional amplitude losses of the sound signal Working with strongly attenuating medium flowing in a pipe which is also strongly attenuating and where deposits can be found on the inner pipe wall it is possi ble that only one transit fal is possible after two transit paths the amplitude of the signal is already insufficient for measuring Transducer installation Transducer installation in diagonal mode in reflection mode factor number sound path factor number of sound e of transits transits EOE A EE E E S Note Correct positioning of the transducer is easier for an even number of transit paths as for an odd number 5 7 Mounting and Positioning of the Transducers 5 7 1 Distance between the Transducers Once the number of transit paths has been entered following display appears Transd Distance Transd Distance A 54 mm A 54 mm Diago Letter A Measuring channel A If you have entered the sound path factor numerically Ref le reflection or Diago diagonal appears behind mm The display indicates at which distance from another the transducer should be mounted here 54 m The transducer distance given here is the distance between the inner edges of the transducers For very small pipes a negative transducer distance is possible
153. ty of a material test piece The sensor probe emits a short ultrasonic pulse which propagates in the test piece The pulse is reflected by the boundary layer of the test piece and comes back to the sensor probe The time difference between the emission and the reception of the signal is a measure for the thickness of the test piece with known sound velocity of the material or for its longitudinal sound velocity with known thickness of the material Probe cable Probe cable Sensor probe yr Plug Me for US300PM a socket Sensor probe with connection 4 socket on the side for probe cable Plug Seay oe for probe K BS _Y socket KX 5 q Boundary layer oftest piece Wall thickness sensor assem Measuring principle bly 12 1 Activating the WTM Mode To activate the WTM mode insert the plug of the probe cable into the socket for channel A or B at the front of the unit US300PM automatically switches to the WTM mode This message appears for 1 second It acknowledges WALL THICKNESS the detection of the probe on channel A and shows that the WTM option is available DETECTED ON A The main menu of the WTM option is displayed The menus are similar to those of the flow measure ment mode The program branches are adapted to wall thickness measurement As long as the probe is connected to the socket of a measuring channel US300PM stays in wall thickness measurement mode on that channel
154. w the instructions on safety described in this manual when handling this instrument In case the instrument is handled in contradiction to these instructions Yokogawa does not guarantee safety The following safety symbol marks are used in this Manual Note The notes contain important information which help you use your instrument in an optimal way Attention This text gives you important instructions which should be respected in order to avoid failure or damaging the instrument Proceed with attention This text denotes an action which could result in injury or death of personal Proceed cautiously Respect these safety precautions 1 3 Warranty e The warranty shall cover the period noted on the quotation presented to the purchaser at the time of purchase Problems occurred during the warranty period shall basically be repaired free of charge e Incase of problems the customer should contact the Yokogawa representative from which the in strument was purchased or the nearest Yokogawa office e Ifa problem arises with this instrument please inform us of the nature of the problem and the cir cumstances under which it developed including the model specification the serial number and the factory number Any diagrams data and other information you can include in your communication will also be helpful IM 01G05B02 01E 1st Edition Nov 5 2001 XX 3 1 Introduction e Responsible party for repair cost for the problems shall
155. will not switch 15 6 8 Alarms State It is possible to have the state of the alarms displayed during measurement This function can be acti vated in program branch SPECIAL FUNCTION SYSTEM SETTINGS DIALOGS MENUS This setting is coldstart resistant Select the SHOW RELAIS STAT option Select ON to SHOW RELAIS STAT activate the display of the alarms state off gt ON lt Fa During measurement press key 9 to scroll on the first line of the display until you reach the alarm s state display The alarm s state is displayed in the following form RX where represents a pictogram R1 I for example Pictograms of the alarm s state display Nr Function Type Switching condition Actual state HH NON NO 1 no function H HOLD 4 normally open CLOSED Poo gaan N C O 2 a MAX H HOLD normally OPEN as Be nna E E closed E E 3 wf MN as gt a gt mi QUANTITY fas ERROR 106 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 15 Process Outputs 15 7 Deactivating an Alarm Output If you no longer require a programmed alarm output it can be deactivated The current settings of the output high limit low limit
156. y pressing BRK Menu selections BRK 1 x BRK Calls the main menu Selecting the menu entry at the left or at the right of the currently highlighted one Scrolling upwards or downwards through the menus ENTER Confirmation of the selected entry The corresponding program branch appears Input of numerical values Input of the numerical value shown on the key i Sign for the input of negative data e Deletion of data After the deletion of data the previous value will be displayed ENTER Confirmation of input Input of text Selection of the position of the character to be input Changes the currently selected character to an A 16 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 4 Getting Started Changes the currently selected character to a Z 3 _ Changes between small and capital letters Moving to the next ASCII character a a Moving to the previous ASCII character oo Deleting the character currently shown and inserts a blank space To automatically scroll upwards through the selected restricted ASCII character set The character changes every second The scrolling can be interrupted by pressing any other key To automatically scroll downwards through the selected restricted ASCII character set The character changes every second The scrolling can be interrupted by pressing any other key 4 3 The Menus 4 3 1 The Main Menu After switching on and initialization the main menu
157. ze type Optional extension cable US300PC Length 5m 10m 20m IM 01G05B02 01E 1st Edition Nov 5 2001 XX Standard Specifications e Wall thickness probe e Accessories Type of usage Standard accessories for US300PM Fluid temperature General temp type 20 to Transportation case 60 deg C Manual option AWTG or model Measurement tape USPA301 Battery set built in in the High temp type 0 to 200 main unit deg C Others fixing hardware couplant etc option WTH or model Some are selectable in the USPA302 model and suffix code see Rating Measuring range 1 0 to 200 mm This de pends on the material Resolution Resolution Construction Weight General temp type approx 172g option WTG or model USPA301 High temp type approx 190g option WTH or model USPA302 Units of Measurement next page of the main unit or transducers or separate orders are also possible Volume flow Flow velocity Mass flow Totalizers Sound velocity m3 h m s m3 min inch s m3 s Wh l min I s USgph USgpm USgps bbl d bbl h bbl m m3 g m s l kg gal t 1 gallon US 3 78 1 barrel 42 gallons 158 76 IM 01G05B02 01E 1st Edition Nov 5 2001 XX 119 Standard Specifications Flow Nomogram Volume flow rate IM 01G05B02 01E 1st Edition Nov 5 2001 XX Flow velocity 120 Standard Specifications Model and Suffix Code Ultrasonic flowmeter portable type

US300PM Ultrasonic Flowmeter, Portable Type

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