Home

PT878GC Portable Gas Flowmeter User`s Manual

1. Transfer Note Press F2 Cancel to cancel the entries and return to Menu Press F3 OK to confirm the entries and return to Menu Menu Maps Figure A 2 The Site Menu A 3 April 2009 Menu Program See Figure A 5 Clamp on Transducer Pipe Lining See Figure A 4 m Path A Wetted eats Clamp on her Air G Path Length Traverses Axial Length Spacing Preprogrammed Sound Speed Units Special Wedge Frequency Temperature Time Delay Wetted Clamp on Wedge Angle Material Wedge Glass Asbestos Temperature Pyrex Cement Wedge Sound Speed Teflon Other Sound Speed Thickness Figure A 3 The Program Menu Transducer Lining Fluid and Path Options Menu Maps ipe Material Aluminum April 2009
2. Infrared Transceiver Figure 2 2 Connection Locations 2 2 Initial Setup April 2009 Power Connections The PT878GC is powered by either a 100 120 200 260 VAC wall mount plug in module or by 5 internal C size NiCad high energy rechargeable batteries or by a pack of 3 0 Ahr NiMH batteries An optional power supplement part 703 1283 uses 6 AA alkaline batteries When you receive the PT878GC the batteries are not charged therefore to make remote measurements using the batteries follow the instructions on page 2 5 to charge the batteries In either case you must connect the power cord to the appropriate terminal as shown in Figure 2 2 above IWARNING To ensure the safe operation of the TransPort you must install and operate it as described in this manual In addition be sure to follow all applicable safety codes and regulations for installing electrical equipment in your area Transducer Connections The transducer cables connect to the TransPort with LEMO coaxial type connectors Each color coded cable has a collar labeled UPSTREAM or DOWNSTREAM Make transducer cable connections to the top of the flowmeter as shown in Figure 2 2 on the previous page Transducer installation is discussed separately in Chapter 3 Analog Input Output Connections The TransPort provides one 0 4 20 mA current output and two 4 to 20 mA analog inputs with switchable 16 V
3. For cast iron steel PVC CPVC ANSI Yes No O Schedule 80 160 Nominal 1 2 to 48 Note Press F2 Cancel to cancel the entries and return to Menu Press F3 OK to confirm the entries and return to Menu OD OD XPI Wall mm Menu Maps Figure A 4 The Program Menu Pipe Option A 5 See Figures A 3 and A 4 April 2009 See Figure A 6 Menu Maps Standard Volume isabled led Atmospheric Pressure Base Pressure Base Temperature Inputs Pressure Fixed Active Pressure Input A B Temperature Fixed Active Temperature Input A B Disabled Enabled gg Calculation Method rated Steam m Input Figure A 5 The Program Menu Standard Volume Option A 6 April 2009 See Figure A 5 See Figure A 7 Analog Output Scan Measure Analog Input g P Function Input A Input B 0 20 mA 4 2
4. User3 Reynolds Correction Calibration Factor Data Source Gate Active se Totalizer Frequency Contact On off Off Units Pulse Min Data AS Pulse Width Min Frequency K Factor Max Data Single Table Max Frequency Label Meter Data Source Duty Cycle Automatic K Factor Edit Table Units Symbol Polarity Transmit Decimal Places Equation Note Press F2 Cancel to cancel the entries and return to Menu Press F3 OK to confirm the entries and return to Menu Figure A 7 The Program Menu Digital Output User Function and Correction Factor Options Menu Maps A 8 Note Press F2 Cancel to cancel the entries and return to Menu Press F3 OK to confirm the entries and return to Menu Battery Date Time Backlight NiCd NiMH Condition Pressure Units KPA Bars MMHG Date Time I Lighter
5. Figure 9 14 The Outputs Window in the Calibration Option Calibrating the Analog Output The calibration procedure consists of calibrating the analog output zero point 0 or 4 mA and then calibrating the full scale span point 20 mA You enter first the setpoint and then the actual value measured with a digital ammeter or voltmeter The analog outputs have a resolution of 5 0 uA Press the V arrow key to enter the Analog Output window Servicing the PT878GC 9 21 April 2009 Calibrating the Analog Output cont 1 2 Connect a digital multimeter or ammeter to the analog output The next prompt asks for the setpoint 4 or 20 mA Use the lt 4 and P arrow keys to move to the appropriate radio button and press ENTER The next prompt asks you to enter the actual value shown on the multimeter or ammeter a Press ENTER to open the text box b Use the numeric keys to enter the measured value c Press ENTER to confirm your entry Repeat steps 2 and 3 for the other setpoint Press the W arrow key to move to the Calibrate box and then press ENTER to calibrate the output If you are unsatisfied with the calibration you can reset the inputs to factory defaults Press the P arrow key to move to the Reset box and then press ENTER to undo the calibration You have completed calibrating the outputs To leave the Output window Press the A key to return to the Out
6. Figure 8 8 The Delete Confirmation Window Deleting All Logs To clear the Log Manager and memory of all logs open the File menu scroll to the Delete All Logs option and press ENTER A window opens asking Delete All Logs Press F2 No to stop the deletion or F3 Yes to delete the logs IMPORTANT This step cannot be undone A blank Log Manager appears All logs have been deleted Refreshing a Log You can refresh a log updating the display with the most current information in one of two ways Press F2 Refresh to refresh the highlighted log From the File Menu scroll to the Refresh option and press ENTER The updated information on the highlighted log appears in the window on the right 8 12 Logging Data April 2009 Printing a Log To print a file from the Log Manager 1 Highlight the desired log in the window on the left of the Log Manager 2 Press MENU scroll to the Print option and press ENTER The PT878GC shows a message indicating that its infrared sensor is looking for a printer If the sensor finds no printer a window appears with this message If it finds two printers within its range it asks you to select the desired device If successful the PT878GC returns to the Log Manager while the printer prints out the log Transferring a Log to a PC To upload a log to a PC 1 Check that the Communications option see page 7 15 has been set to the IrDA p
7. Date Separator Time Separator Date Format YYYY M MM DD YYYY DD MM YYYY Time Format 24 Hour Backlight User Tables Off Communications See Figure A 11 1 Data Points Max Points Edit Tables Menu Maps Figure A 8 The Meter Menu April 2009 A 9 Note Press F2 Cancel to cancel the entries and return to Menu Press F3 OK to confirm the entries and return to Menu Menu Log Manager New Log Name Format Linear Circular Details Spreadsheet New Clo ete Delete All Name Format Circular Type i Standard Error Start End Interval Measurement Refresh Menu Maps Figure A 9 The Logg
8. Dual Single Length Block 1 Block 1 Length Block 2 Length Retry Set Error Limits Facto ry Flash Defaults Update Min Signal Max Signal Min Velocity Max Velocity Min Amplitude Max Amplitude Sound Speed Acceleration April 2009 Material Material Watchdog Timer Impulse Resp onse Wave Snapshot Simulate Battery Test If Other Sound Speed le Drive Contents Current Site Global Settings User Functions User Tables I User Settings Menu Commands Menu Maps Figure A 10 The Service Menu Direction Upstream Downstream Percent Gain Transmit Stop Exit April 2009 Menu Meter Communications Node ID Comm Interface IR 232 Baud Rate 9600 19 2K 38 4K Parity Space Even Stop Bits Data Bits 8 A Note Press
9. For air nitrogen oxygen or argon refer to Table 3 1 on the next page For natural gas refer to Table 3 2 on page 3 7 For steam refer to Table 3 3 on page 3 9 Find the pipe size of your application Then find the pipe wall thickness of your application With the pipe size and pipe wall thickness determine if your application meets the minimum pressure requirements Use the same row in the appropriate table to determine the maximum flow velocity capability of the PT878GC For reference the table provides the recommended number of traverses and transducer frequency for your application Note All provided data is based on metal pipes plastic pipes 3 4 have a minimum pressure requirement of ambient air or any non attenuating gas with a minimum density of 0 074 lbs cf 1 185 kg m Consult the factory for applications involving natural gas with sulfur or high carbon dioxide content or for applications not listed in the tables Installing the Dampening Material Transducers and Fixtures Table 3 1 PT878GC Installation Requirements for Air Nitrogen Oxygen or Argon Maximum Velocity ft s m s April 2009 Transducer Min Pressure Single Dual Triple Four Five Pipe Size ANSI DIN Pipe Wall Inches mm MHz psig bar Traverse Traverse Traverse Traverse Traverse 3 4 20 lt 0 07 1 8 1
10. 24 600 lt 0 38 9 7 0 2 300 21 7 lt 0 50 12 7 0 2 Installing the Dampening Material Transducers and Fixtures 800 56 2 56 17 1 42 12 8 34 10 4 3 8 April 2009 Table 3 3 PT878GC Installation Requirements for Steam 3 80 Pipe Wall Inches mm lt 0 22 5 6 Transducer MHz Min Pressure psig bar 110 8 6 lt 0 3 7 6 200 14 8 Maximum Flow Velocity ft s m s Single Traverse 120 36 6 4 100 lt 0 24 6 1 110 8 6 lt 0 34 8 6 200 14 8 120 36 6 6 150 lt 0 28 7 2 110 8 6 lt 0 44 11 2 200 14 8 120 36 6 8 200 lt 0 33 8 4 120 9 3 lt 0 5 12 7 200 14 8 100 30 5 10 250 lt 0 37 9 4 130 10 0 lt 0 5 12 7 200 14 8 85 25 9 12 300 lt 0 38 9 7 140 10 7 lt 0 5 12 7 200 14 8 Installing the Dampening Material Transducers and Fixtures 70 21 3 3 9 April 2009 Preparing the Pipe 1 Locate a transducer measurement point with 20 diameters of upstream straight run pipe and 10 diameters of downstream straight run pipe In addition the point should be at least 10 diameters from any butt welds or flanges Keep appropriate clearance on either side of the pipe for easy transducer installation e 150 mm 6 in if you are not using a junction box or
11. To transfer a site from a PC to the PT878GC go to page 5 14 Creating and Managing Sites 5 3 April 2009 Creating a New Site To create a new site in the Site Manager press MENU in the Site Manager Be sure the option New is highlighted and then press ENTER The screen appears similar to Figure 5 4 below Figure 5 4 Name Entry Window for a New Site 1 Use the four arrow keys to scroll to the desired letter or number and press ENTER 2 Repeat this procedure until you have created the desired site name of up to eight characters Press F1 Delete to remove any unwanted letters or numbers 3 When you have finished press F3 OK to confirm the entry A second screen appears as shown in Figure 5 5 on the next page asking if you want to use the currently highlighted site as a template for the new site using its current display windows measurements and programmed data To modify the display and measurements refer to Chapter 6 Displaying and Configuring Data To alter programming data see Chapter 4 Programming Site Data e Press F2 No if you do not want to use it or Press F3 Yes if you want to use it as a template 5 4 Creating and Managing Sites April 2009 Creating a New Site cont Use the selected site DEFAULT SIT as a template Figure 5 5 Tem
12. ENTER to confirm the entry 4 Press ENTER Calibrate button to prepare for calibration Then apply couplant B to the block surface and hold the transducer against the block 5 When you have the transducer firmly pressed against the block press ENTER Ready button again to perform the calibration 6 Hold the transducer steady until the Set button appears Press ENTER to store the calibration IMPORTANT Be sure to hold the transducer steady until the GE Sensing wait cursor disappears 7 If you have chosen dual calibration repeat Steps 3 through 6 above for Block 2 8 The PT878GC asks for confirmation of the calculated and current values e Press the A arrow key to move to the Retry box and press ENTER to recalculate the value or e Press ENTER on Set to commit the calculated value Once you have completed calibration the transducer should remain calibrated until the meter memory is cleared or a dramatic shift in ambient conditions occurs To leave the Zero window Press the lt d or P arrow key to move to another tab to take readings or perform a velocity calibration Press F2 Cancel to return to Operate Mode without confirming the sound speed value Press F3 OK to confirm the new value The PT878GC returns to Operate Mode Servicing the PT878GC 9 13 April 2009 Calculating Velocity Pipe Material Sound Speed The nominal sound speed for your pipe material will give thi
13. F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key 7 22 Programming Meter Settings April 2009 Taking a Bitmap Capture of a Current Screen The Snapshot option enables you to take a screen capture of the current screen in bitmap format bmp for display or storage in a Windows based PC To take a snapshot of the screen 1 From the Meter menu scroll to the Snapshot entry and press ENTER 2 A drop down menu appears asking if you want to send the capture to a printer or to a file or to turn the option off If you select To File an icon of a camera see page 2 10 appears at the far right of the status tray indicating that you have activated the Snapshot option If you select To Printer an icon of a printer appears 66 99 3 To capture a screen press the decimal button in the lower left corner of the keypad twice The meter beeps indicating that it has made a screen capture The To Printer option enables you to send a picture of the current screen to an infrared printer After capturing a screen the PT878GC shows a message indicating that its infrared scanner is looking for a receiving device If the scanner finds no device a window appears stating that the meter can find no device If it finds more than one compatible infrared device within range it asks you to select the desired device If successf
14. Velocity For pipes 6 in 150 mm and smaller 2 to 5 of reading typical For pipes over 6 in 150 mm 1 to 2 of reading typical Note Accuracy depends on pipe size and whether measurement is one path or two path Accuracy to 0 5 of reading may be achievable with process calibration Repeatability 0 2 to 0 5 of reading Range Bidirectional See Table 3 1 on page 3 5 Table 3 2 on page 3 7 and Table 3 3 on page 3 9 Rangeability Overall 150 1 11 2 Specifications April 2009 Operation and Performance cont Note Specifications assume a fully developed flow profile typically 20 diameters upstream 10 diameters downstream straight run and flow velocity greater than 5 fts 1 5 m s Pipes 2 in 50 mm or less require a minimum of 10 ft 3 m of continuous straight run without flanges welds or coupling joints Pressure Requirements Air Nitrogen Oxygen Argon See Table 3 1 on page 3 5 Pressure Requirements Natural Gas See Table 3 2 on page 3 7 Pressure Requirements Steam See Table 3 3 on page 3 9 Pressure Requirements Other Gases Dependent upon gas composition and pipe size and material Consult GE Sensing Measurement Parameters Standard and actual volumetric flow flow velocity and mass flow Specifications 11 3 April 2009 Electronics Flow Measurement Patented Correlation Transit Time mode Enclosures Submersible IP67 Dimensions Weight 3 lb 1 36
15. Wir Panametrics Limited Shannon Industrial Estate Shannon County Clare Ireland erkl ren in alleiniger Verantwortung da die Produkte TransPort PT878 Portable Ultrasonic Flowmeter TransPort PT878GC Clamp On Portable Ultrasonic Flowmeter folgende Normen erf llen e EN 61326 1998 Class A Annex C Continuous Unmonitored Operation gem den Europ ischen Richtlinien Niederspannungsrichtlinie EMV Richtlinie Nr 89 336 EG Die oben aufgef hrten Ger te und zugeh rige mitgelieferte Schallwandler Messrohre werden in einer separaten Konformit tserkl rung behandelt tragen keine CE Kennzeichnung gem der Druckger te Richtlinie da sie in bereinstimmung mit Artikel 3 Absatz 3 gute Ingenieurpraxis der Druckger te Richtlinie 97 23 EG fur DN lt 25 geliefert werden Shannon June 1 2002 A y Pe ME Mr James Gibson GENERALDIREKTOR nsal f j LS EN IS09002 T V ESSEN Shannon ISO 9001 US CERT DOC H5 August 2004 USA 1100 Technology Park Drive Billerica MA 01821 4111 Web www gesensing com Ireland Sensing House Shannon Free Zone East Shannon County Clare Ireland
16. a b c Press ENTER to open the text box Use the numeric keys to enter the desired interval in seconds Press ENTER to confirm the entry 6 You have completed entering parameters in this window To select the measurements a Press the V key to return to the Format prompt b Then press the A key to return to the General tab c Finally press the P gt key to move to the Measurements tab and press ENTER The Measurements window appears similar to Figure 8 6 on the next page Logging Data 8 7 April 2009 Setting up a New Log cont General MEERTENS NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT NO UNIT Figure 8 6 The Log Measurements Window To step through each entry press the W key 1 Press ENTER to open the first entry The Select Measurement window opens as shown in Figure 8 7 on the next page 8 8 Logging Data April 2009 Setting up a New Log cont Select Measurement Pressure m s Diagnostics Temperature Volume Fwd Totalizer Rev Totalizer StdFwdTotalizer StdRevTotalizer Figure 8 7 The Select Measurement Window 2 Scroll to the desired output type 3 Press SEL to confirm your selection 4 The prompt then moves to a list of unit types The available units depend on the selection made at the Data Source prom
17. conditions found in engineering materials that can severely limit the accuracy and thickness range that can be measured 1 Sound Scattering In some materials notably certain types of cast stainless steel cast irons and composites the sound energy is scattered from individual crystallites in the casting or from dissimilar materials within the composite This effect reduces the ability to discriminate a valid return echo from the back side of the material and limits the ability to gauge the material ultrasonically 2 Velocity Variations A number of materials exhibit significant variations in sound velocity from point to point within the material Certain types of cast stainless steels and brass exhibit this effect due to a relatively large grain size and the anisotropy of sound velocity with respect to grain orientation Other materials show a rapid change in sound velocity with temperature This is characteristic of plastic materials where temperature must be controlled in order to obtain maximum precision in the measurement 3 Sound Attenuation or Absorption In many organic materials such as low density plastics and rubber sound is attenuated very rapidly at the frequencies used in normal ultrasonic thickness gaging Therefore the maximum thickness that can be measured in these materials is often limited by sound attenuation Ultrasonic Thickness Gauge Theory of Operation C 5 April 2009 Appendix D Material Safety Data Sheets
18. sit or met extension and transfer it it will be transferred but it will not function if you open it Also if you are transferring a file and the meter already has a file with the identical name the meter will overwrite its current file with the transferred file If the transferred file has a name longer than eight characters the meter will shorten the name to eight characters and replace any spaces in the name with underbars Note t is not possible to download log files back to the PT878GC To download a site or meter file from a PC to a PT878GC 1 Check that the Communications option see page 7 15 has been set to the IrDA protocol Displaying and Configuring Data 6 17 April 2009 Transferring a File from a PC to the PT878GC cont Note For Windows NT 4 0 check that the QuickBeam software available through the path C Program Files QuickBeam Suite is running and that the IR beam on the PT878GC has clear access to the IR sensor connected to the PC port 2 You can send the file in one of two ways e Click on the desired file and drag it onto the rocket button in the QuickBeam window as shown in Figure 6 14 below Y QuickBeam Figure 6 14 The QuickBeam Window Open the Send menu in the QuickBeam window enter the Files or Files on Clipboard option scroll to the desired file and click Send QuickBeam opens a window indicating that it is downloading the file When the download is complete the
19. thickness transducer signal Signal inversion may be necessary if your thickness readings show unusual jitter or for certain unusual combinations of pipe and fluid or pipe and lining Consult the factory before measuring the thickness of lined pipes Note When measuring the thickness of certain pipe materials you might need to drain the pipe before measuring the pipe wall because certain pipe liquid combinations muffle the ultrasonic echo Signal inversion should be on unless you have received other instructions To change its status use the lt d and P arrow keys to move to the appropriate radio button and press ENTER 5 To enter the noise threshold a Press ENTER to open the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm your entry 9 18 Servicing the PT878GC April 2009 Programming the Thickness Gauge cont 6 The final value the detection threshold represents the percent of peak the PT878GC uses to make measurements It will consider anything above the entered percentage as part of the signal To change this value a Press ENTER to open the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm your entry You have finished entering values for the Programming window To leave this window e Press the 4 arrow key to move to the Materials tab Press F2 Cancel to return to Operate Mode without confirmi
20. 3 of Appendix A Menu Maps Note Refer to Chapter 3 for additional information about clamp on gas transducers and fixture configurations Transducer Pipe GSS Pipe Y Lining Fluid Path Type Wetted O Clamp on Transducer Special Frequency 2 00 MHz Tw Wedge Ang 50 Wedge Tmp 25 C Wedge SS 1219 2 Figure 4 2 The Transducer Option Window 1 The first prompt asks you to select whether you are using a wetted or a clamp on transducer a Use the lt d and P keys to scroll between the two types b Press ENTER or SEL to confirm the choice IMPORTANT While wetted transducers are listed as a choice the PT878GC is designed for use with Shear wave clamp on transducers Consult GE before selecting wetted transducers Programming Site Data 4 3 April 2009 Entering Transducer Parameters cont Note The choices made earlier in the Transducer and Pipe options determine the prompts available later If the PT878GC does not scroll to a particular parameter it is not necessary for that transducer or pipe type 2 The next prompt asks you to enter the transducer number or to specify that you are using a special application transducer a From the Type prompt press the V key to reach the Transducer prompt and press ENTER b A drop down list of transducer numbers opens if you have selected clamp on in
21. 32 84 25 6 63 19 2 Installing the Dampening Material Transducers and Fixtures 3 5 Pipe Size ANSI DIN Table 3 1 PT878GC Installation Requirements for Air Nitrogen Oxygen or Argon Continued Pipe Wall Inches mm Transducer MHz Min Pressure psig bar Maximum Velocity ft s m s April 2009 Single Traverse Dual Traverse Triple Traverse Four Traverse Five Traverse 12 300 lt 0 38 9 7 0 5 60 5 1 55 16 8 44 13 4 33 10 1 0 2 200 13 6 82 25 66 20 1 49 14 9 lt 0 50 12 7 0 5 180 13 4 55 16 8 44 13 4 33 10 1 0 2 600 40 8 82 25 66 20 1 49 14 9 lt 1 00 25 4 0 5 300 21 7 55 16 8 44 13 4 33 10 1 0 2 1000 68 82 25 66 20 1 49 14 9 14 350 lt 0 38 9 7 lt 0 50 12 7 0 2 90 7 2 0 2 270 19 6 87 26 5 70 21 3 52 15 9 16 400 lt 0 38 9 7 0 2 90 7 2 lt 0 50 12 7 0 2 270 19 6 76 23 2 61 18 9 45 13 7 18 450 lt 0 38 9 7 0 2 90 7 2 lt 0 50 12 7 0 2 270 19 6 67 20 4 54 16 5 40 12 2 20 500 lt 0 38 9 7 0 2 90 7 2 lt 0 50 12 7 0 2 270 19 6 60 18 3 48 14 6 36 11 0 24 600 lt 0 38 9 7 0 2 90 7 2 lt 0 50 12 7 0 2 Installing the
22. 4 and P keys to scroll to any number you wish to change 4 Two alternatives are available to change a highlighted number e Use the numeric keys to enter the desired number e Use the VW or A arrow keys to scroll in 1 digit increments to the desired number For example if the text box highlights 09 pressing the V key twice changes the number to 07 You can scroll from 01 to 12 for the month and from 01 to 31 for the day depending on the number you have selected for the month In either case press ENTER to confirm the entry Programming Meter Settings 7 7 April 2009 Entering Date and Time cont To set the date 1 From the date text box press the V key once to scroll to the time text box This box displays the current meter time 2 Press ENTER to enter the text box The meter highlights the first number Use the 4 and P gt keys to scroll to any number you wish to change 3 Two alternatives are available to change a highlighted number e Use the numeric keys to enter the desired number e Use the VW or A arrow keys to scroll in 1 digit increments to the desired number For example if the text box highlights 09 pressing the V key twice changes the number to 07 You can scroll from 01 to 12 for the hour and from 01 to 59 for the minute and second inputs 4 In either case press ENTER to confirm the entry Pressing the V or A arrow keys causes the meter to scroll wit
23. 5 Specifications Clamp on Flow ACCUrACY eose treri proie ie Rog ERE 11 2 DIMENSIONS aeee ein E dats enna E ERE tab ahs ERA bee 11 4 ElectrO ICS 2350 ii 11 4 European Compliance 0 c cece eee ee eens 11 5 TRA A Seti E arity Menten AO 11 2 A O 11 5 temal BANET Cura tit a a A 11 4 RUDA ii E E E E 11 4 MEMON e coe aa Sota ENEE got A EEN A ad tae ENTIE SNES 11 4 OPE OS seers bes Ree eae Seep Sie Es 11 2 11 3 Pipe Material ita A ees 11 2 A sal certs acini ate bd Whale le hale abn whan atlas n a a e 11 2 Pipe Wall Thickness 0 0 cc cece cece eens 11 2 Pressure Requirements Air 6 eee ee eee 11 3 Pressure Requirements Other GaseS 0 005 11 3 A O pa ta wane Male The sie oe RT 11 2 RangeabilllY cuco at llos ata 11 2 Feneant G nee as o dole lth eid ie ple tao 11 2 THICKNESS GAUGE tacto HAR bs ee bel Ge 11 8 A aa 11 6 Standard Volume Option Entering INDULS 1 ee ete teens 4 19 Entering Parameters 0 cee ccc ee cee ee eee eee eret 4 17 Static DENSILY s sees eans a aia paket 4 17 Steam Installation Requirements for 2 cece eee ee 3 9 Stopwatch Totolizer 2 2 0 cece eee eee 2 11 4 45 System DeSChIPUONS snot res Geis renee Lee oes eves 1 3 12 April 2009 Index cont T TIKK S lt a 2 12 Temperature Opera Qe a Shae oie oh arene Sete is 11 4 5S AG 06 ii a A dad EEA 11 4 Temperature Ranges TONOS UC Sii ios 11 6 TOTO Sr E noe 9 37 TESUSCREGIN ci az 9 36 Testing
24. Diagnostics source shown a list of diagnostics parameters 4 Use the V and A arrow keys to reach the desired data source and press SEL 5 Then use the V or A arrow keys to select the desired measurement unit or diagnostic parameter To speed scrolling you can press the P key to scroll down by a page or the 4 key to scroll up by a page Press F3 OK to confirm the entry 6 The screen returns to Operate Mode and displays any changes Displaying and Configuring Data 6 7 April 2009 The Measurement Option cont 6 8 Select Measurement Diagnostics Velocity Temperature Pressure Volume Fwd Totalizer Rev Totalizer StdFwdTotalizer StdRevTotalizer User Function Delta T Amplitude Up Amplitude Down T Up T Down Gain Up Gain Dn Signal Up Signal Down Threshold Up Threshold Down Norm Factor Figure 6 5 The Measurement Menu Window Displaying and Configuring Data April 2009 Customizing the Display Screen You might wish to display one or two parameters or customize the soft keys to quickly access particular menus The Site Menu enables you to make more comprehensive changes in your display screen To enter the Site Menu press the MENU key at the lower right of the PT878GC keypad The Menu Bar replaces the Status Bar at the top of the screen The Site Menu will be highlighted in the upper left corner Press ENTER or the V arrow key T
25. ENTER to read the low input The next prompt asks for the value to which you want to set the high input 20 mA a Press ENTER to open the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm your entry Connect the current source to the input and set it to deliver the value entered in the previous step Press the P arrow key to move to the Read box and then press ENTER to read the high input Press the V key to move to the Calibrate box and press ENTER to calibrate the inputs 10 At this point you have two options a If you are unsatisfied with the calibration you can reset the inputs to factory defaults Press the arrow key to move to the Reset box and then press ENTER to undo the calibration b If you are satisfied with the calibration press the W key to return to the Input prompt and repeat steps 2 through 8 for the other input You have completed calibrating the inputs To leave the Inputs window Press the A key to return to the Inputs tab and the 4 arrow key to move to the Outputs tab Press F2 Cancel to return to Operate Mode without confirming the changes Press F3 OK to confirm the new data The PT878GC returns to Operate Mode 9 24 Servicing the PT878GC April 2009 Setting up Signal Parameters The Signal Setup option enables you to set parameters that affect the transducer signal e Delta T Of
26. F2 Cancel to cancel the entries and return to Menu Press F3 OK to confirm the entries and return to Menu Figure A 11 The Communications Option A 12 April 2009 Appendix B Establishing IR Communications with the PT878GC As discussed in Chapter 2 the PT878GC includes an infrared transceiver for communication with IR products that comply with the IrDA protocol However you must also be sure that the operating system of your personal computer offers IrDA compatibility and either a built in IR port available on most laptops or an IR dongle IR to RS232 adapter for PCs without a built in IR port If your PC does not have an IR dongle GE Sensing recommends the ActiSys ACT IR220L infrared to RS 232 adapter which has been tested for compatibility with the PT878GC Be sure to position the interface in a way that permits transmission between the interface and the infrared sensor on the PT878GC shown in Figure 2 2 on page 2 2 Table B 1 on the next page lists IrDA compatibility for various past and current Microsoft Windows operating systems IrCOMM is an infrared standard supported by Microsoft while OBEX is a newer infrared standard which allows more straightforward use and faster file transfers while tolerating IR interruptions better Establishing IR Communications with the PT878GC B 1 April 2009 Table B 1 IrDA Compatibility of Windows Operating Systems Operating System IrCOMM OBEX Windows XP No Yes Windo
27. Settings Along with display formats and site data PT878GC users can program global settings for the meter that suit their individual preferences The global settings include English or Metric measurement units e Battery power Date and time parameters and appearance e Screen contrast e Backlight timeout Language settings e Infrared communications settings Resetting forward and reverse totals User tables Printing and capturing screens Programming Meter Settings 7 1 April 2009 Entering the Meter Menu To enter the Meter Menu press the MENU key at the lower right of the PT878GC keypad The Main Menu replaces the Status Bar at the top of the screen Press the P gt arrow key twice to scroll from the Site Menu to the Meter Menu At the Meter Menu press ENTER The screen appears similar to Figure 7 1 below While programming refer to Figure A 8 on page A 8 of Appendix A Menu Maps Site Program MEGA Logging Service Velocity f Units Signal dB Battery Date Time 32 0 Locale Y Contrast Backlight Language PTV CEMA Communication olume ft s Totals gt User Tables 0 Snapshot 0 0 EO No Errors ph y ff Figure 7 1 The Meter Menu To scroll to a particular option press the V or A arrow keys until you reach the option Then press ENTER to open the option window When entering parameters in an option press e The V key to step t
28. and return to Operate Mode press F3 OK To leave the window without confirming the entries press F2 Cancel or the ESC key In either case the meter returns to Operate Mode 7 4 Programming Meter Settings April 2009 The Battery Charger The Battery option allows you to monitor the current run time and status of the internal rechargeable batteries as well as to condition NiCad batteries to maintain the maximum life possible Conditioning NiCad batteries a process that can take up to 12 hours for a fully charged pack discharges the pack completely and then performs a fast charge Note When conditioning the batteries be sure you have plugged the AC adapter into the PT878GC and pressed the power key NiMH batteries normally do not require conditioning To open the option window 1 From the Meter menu scroll to the Battery entry and press ENTER The Battery Charger window opens as shown in Figure 7 3 below 2 If you wish to open the Part Number window press ENTER You can choose from a 1 8 Ahr NiCd battery part number 200 058 or a 3 0 Ahr NiMH battery part number 200 081 Scroll to the battery type you have installed and press ENTER Note Ifyou do not set the correct battery type in the Part Number window the battery continues to function but the battery status icons see page 2 5 will not be accurate Battery Charger Status Full Charge Run Time Remaining Se PO Battery Voltage 5 78 Volts
29. data collection appropriate to the needs of a given application It is possible that on some severely corroded or pitted materials there will be spots where readings cannot be obtained This can happen when the inside surface of the material is so irregular that the sound energy is scattered rather than being reflected back to the transducer The lack of a reading may also indicate a thickness outside the range of the transducer and instrument being used Generally an inability to obtain a valid thickness reading at a particular point on a test specimen could be a sign of a seriously degraded wall which may warrant investigation by other means C Calibration The accuracy of measurements are only as good as the accuracy and care with which the gauge has been calibrated It is essential that the thickness gauge be calibrated as described on page 9 12 whenever the transducer is changed or you have a reason to doubt the accuracy of the readings Periodic checks with samples of known thicknesses are recommended to verify that the gauge is operating properly C 4 Ultrasonic Thickness Gauge Theory of Operation April 2009 Factors Affecting Performance and Accuracy cont D Taper or Eccentricity If the contact surface and the back surface are tapered or eccentric with respect to each other the return echo again becomes distorted and the accuracy of measurement is diminished E Acoustic Properties of the Material There are several
30. dcp e brad abe 8 16 StODPIMGAll Sere Arneatect tarada hae eat a 8 16 Low Signal Threshold seeren taine e cece eet eens 9 18 April 2009 Index cont M MS Wit os ttc o che MA ee LR ORR de e 4 25 Main Menu Menu MAP a A Sates Cate bee A 1 MA e E nE ins ak Gee Gea in ES Pa eS Bee ees 4 17 Material in Thickness Gauge Setup Option cece eee 9 7 Measurement Mode cece cece rr 9 28 Measurement Option 0 cee ec eee eee e eens 6 7 6 8 Measurement Parametersy 2 3 34 544 sone edo ne agus a 11 3 Measurement Parameters ChaNginQ ooo o o 6 7 6 8 Measurement Units Selecting 0 0 0 2 000 cece eee eee eee 7 3 Memory SPECIES aii 11 4 Meter Menu MOEAUCMG Dies dd didnt A 9 Meter Menu ENteriNQ o oooooooooooonorrrror ca 7 2 Meter Settings WiNdOW ooooooccccocooooorrrrr 7 3 Merne Unies ana a Sodan ee ate N BR SS ssa athe 7 3 Microcomputeti 2 20c042cn5 lt 208s See dese tl kige ada 1 4 Model NUMBER cosas corts te og debate 6 21 MOUNTINGS ii ea ena acido e 11 6 N Natural Gas Installation Requirements for 22 cece eee eee ee 3 7 Nitrogen Installation Requirements for 0 0 cee eee eee ee 3 5 Node ID for Communications 0 00 cee eee eee 7 15 Noise Threshold vio cored oy E Geka ead Siete state dea tases 9 18 NUMENIE KEYS on O 2 12 April 2009 Index cont On Line el Pis Laa CAM aiii a Speen ams Operation and Performance Specificat
31. entry in the Service Menu and press ENTER The screen will appear similar to Figure 9 26 below IMPORTANT All sites and logs will be lost if you use the Factory Defaults option Be sure to transfer or print all sites and logs before resetting Factory Defaults WARNING You will LOSE all changes by pressing OK Choose CANCEL to exit or OK to proceed Figure 9 26 The Factory Defaults Option 1 You have two options e Press F2 Cancel to return to Operate Mode without changing the current settings e Press F3 OK to confirm that you wish to restore the factory default settings 2 The program asks for confirmation Are you SURE Repeat the procedure shown in step 1 above The PT878GC replaces the default site file and the global meter settings with the factory default settings 9 42 Servicing the PT878GC April 2009 Updating PT878GC Software By using a Windows based PC with an infrared adapter PT878GC users can update the meter s operating software without the need to change the hardware This software can include the bootloader FPGA software timing software for transit time instrument software the meter string file and the Help string file The updating procedure involves three steps 1 Setting up the PT878GC in Flash Update mode 2 Selecting the loading interface 3 Loading the new software from the PC into the PT878GC Caution To guard against mishap you should pri
32. for the Set button to appear To calibrate the gauge press the W arrow key to move to the Set button Press ENTER Set button to start the calibration sequence Thickness Gauge Measure Display Graph MEE Zero Y Material i Block Length 1 Set Press Set to Commit Value Calculated 22129 Current 74733 Figure 9 11 The Velocity Window Displaying the Calculated and Current Values Servicing the PT878GC 9 15 April 2009 Calculating Velocity Pipe Material Sound Speed cont 7 The Calculated box shows the thickness value measured The PT878GC asks for confirmation of the calculated and current values Press ENTER to commit accept the calculated value in which case it becomes the current value and to recalculate the value which becomes the new Calculated value Note Ifyou commit the calculated value the settings in the Material window also change from the previous material to Other with the new sound speed To leave the Velocity window e Press the 4 or P arrow key to move to another tab e Press F2 Cancel to return to Operate Mode without confirming the sound speed value Press F3 OK to confirm the new value and return to Operate Mode 9 16 Servicing the PT878GC April 2009 Programming the Thickness Gauge While the T Gauge Display option allows you to program the appropriate material and
33. from the installation area as well as any loose paint rust and high spots from the pipe 2 Remove the backing paper from the inside of the pipe dampening jacket shown in Figure 3 33 below Figure 3 33 The PDJ Pipe Dampening Jacket 3 Install the jacket on the pipe as shown in Figure 3 34 below Tighten the clamping screws so that some fluid drips from the bottom of the jacket Figure 3 34 Installation of a PDJ Jacket Installing the Dampening Material Transducers and Fixtures 3 33 April 2009 Installing the PDJ Dampening Jacket cont WARNING The pipe and the dripping fluid will cause severe burns upon contact with bare skin Also be sure not to inhale the fumes generated during the DMP 3 curing cycle 4 Install the fixture over the jacket adjusting the spacing to match the prestamped transducer holes and PT878GC spacing calculations 5 Apply a thin bead of CPL 16 couplant Spread it in a thin layer about 6 mm 0 25 in wide on each transducer face 6 Install the transducers into the yokes and tighten the hold down screws until the couplant touches the pipe 7 Ifyou wish reinstall insulation over the pipe making sure that the yokes and junction boxes protrude through the insulation 8 Wait 15 min for the couplant to skin and finger tighten the transducer hold down screws Do not use pliers or any other tools 9 Using a wrench tighten the transducer hold down screw backing nuts to prevent
34. gur TYPE ESS AFTER DATA SOURCE ER PROSEN TO MOVETO UNIT TYPE SELECTIONS 2 BETEGI PRESS ON ANY FORM TO BRING UP RELATED HELP HELP IS HYPERLINKED FOR EASY NAVIGATION OF TOPICS O runction keys MAIN SCREEN FUNCTION KEYS CAN BE ON THE MAIN SCREEN TO HOLD QUICK LINK MENU ITEMS SEE MANUAL FOR D INSTRUCTIONS DETAILED FORMS SPECIALIZED FORM NAVIGATION SPECIFIC TO CURRENT FORM FUNCTION CAN BE PRESS ANYWHERE TO CANCEL THE CURRENT SEEN DIRECTLY ABOVE THE FUNCTION KEYS OPERATION IF NO CONTROL IS CURRENTLY BEING EDITED THE FORM WILL CLOSE 6 GE Panametrics GE PANAMETRICS GE PANAMETRICS 221 CRESCENT STREET SHANNON AIRPORT WALTHAM MA 02453 SHANNON IRELAND WARNING USE ONLY RECHARGEABLE NIMH BATTERIES PART NO 200 081 OR 6 AA ALKALINE BATTERIES WITH 703 1283 DISCONNECT POWER AND BATTERIES BEFORE OPENING CHARGE ONLY WITH SPECIFIED CHARGERS TO AVOID POTENTIAL INJURY DO NOT OPEN BATTERY DISPOSE OF IN FIRE OR SHORT CIRCUIT Figure 3 2 PT878GC Back Label In addition to checking the available frequencies you should determine that your application meets the minimum gas pressure and maximum flow velocity range requirements for optimal measurements given the pipe size and pipe thickness The tables on the following pages list the minimum pipe sizes schedules and pressures for use with the PT878GC Installing the Dampening Material Transducers and Fixtures 3 3 April 2009 Application Requirements cont
35. have completed entering the function press F3 OK to confirm the entry and return to the User Function window 6 GE Sensing recommends pressing F2 Check to test the validity of the function The PT878GC displays either OK or a message such as Syntax Error e Press F1 to delete the entire function and start again or e Press F2 to cancel the function and return to Operate Mode Press F3 Done to confirm the function and return to Operate Mode Programming Site Data 4 49 April 2009 Entering Correction Factors The final option in the Program Menu Correction Factors allows you to enter and modify three correction factors Reynolds Correction Kinematic Viscosity and Calibration Factor To enter the Correction Factors option scroll to the Correction Factors entry on the Program Menu and press ENTER The screen appears similar to Figure 4 24 below To step through each parameter press the W key Refer to Figure A 7 on page A 7 of Appendix A Menu Maps Correction Factors ad Calibration Factor Re Correction O On 0 Off K V Factors 8 Single Table K V x 1078 10 m s Data Source Edit Table Figure 4 24 Reynolds Correction Window Entering Reynolds Correction 1 The first prompt asks if you want to enable the Reynolds Correction factor a number based on the Kinematic Viscosity and flow rate of the gas a Use the l
36. key 4 38 Programming Site Data April 2009 Entering the Analog Output The Analog Output option enables you to enter information to set up output parameters To enter the option scroll to the Analog Output entry on the Program Menu and press ENTER The screen appears similar to Figure 4 18 below To step through each parameter press the V key Refer to Figure A 6 on page A 6 of Appendix A Menu Maps Analog Output Function 0 20 mA Data Source Velocity m s Zero o Span 25 5 On Error Hold Last Value Figure 4 18 The Analog Output Window 1 The first prompt enables you to select a range to send a current signal to a recording device a Press ENTER to open the drop down menu b Scroll to the desired output from three choices Off 0 20 mA and 4 20 mA c Press ENTER to confirm your selection Note Ifyou select Off you cannot access any other parameters in this option Programming Site Data 4 39 April 2009 Entering the Analog Output cont 2 The next prompt asks you to select the analog output type from a number of choices as shown in Figure 4 19 below Select Measurement Diagnostics m s Velocity Temperature Pressure Volume UserFunction Aux Input A Aux Input B Skan Measure Mass Flow Figure 4 19 Data Source Selection Window o Press ENTER to open the window b
37. log highlighted in the list on the left You can use the V and A arrow keys to scroll to a particular log and display information pertaining to that log Log Manager File Log View Sort AAA Info AAA LOG BBB State Finished CCC 03 01 04 13 13 41 E 03 01 04 13 23 41 Interval 10 Seconds Records 51 03 01 04 13 23 21 1216 bytes 109568 bytes free Figure 8 2 The Log Manager Window To access the menu for the Log Manager press the MENU key The cursor highlights the File Menu in the upper left corner Use the lt d and P keys to scroll to the desired menu and press ENTER to open the menu Logging Data 8 3 April 2009 The File Menu The File Menu allows you not only to create new logs but also to copy rename or delete logs as well as to print them or transfer them to a PC To open the File menu from the Log Manager press the MENU key and then ENTER The screen appears similar to Figure 8 3 below Log Manager micas Log View Sort Info AAA L Clone Selected Log rar ee ate Rename S 03 01 04 13 13 41 Delete E 03 01 04 13 23 41 Delete All Logs Interval 10 Seconds Refresh Records 51 Print Print All 03 01 04 13 23 21 Transfer 1216 bytes 109568 bytes free Figure 8 3 File Menu in the Log Manager 8 4 Logging Data April 2009 Setting up a New Log The New Log option enables you to create and set up parameters for a new log You can a
38. mean ID by the square of the ID at the transducer location as shown in the equations below where OD is the outside diameter at a given point and Wy is the wall thickness at a given point as shown in Figure 3 6 on the previous page mean ID OD W W OD W We OD W3 W OD Wy We 4 Mean ID for non concentric pipe 2 ID at transducer location 3 Program the value into the PT878GC Note See Chapter 4 Programming Site Data pages 4 3 to 4 16 for more details on programming Based on the pipe OD proceed to the appropriate section If the pipe is lt 12 300 mm see the section Installing the V Series Clamping Fixture and Transducers on the next page If the pipe is gt 12 300 mm go to Installing the PI Fixture and Transducers on page 3 18 Installing the Dampening Material Transducers and Fixtures 3 13 April 2009 Installing the V Series Clamping Fixture and Transducers Note 4 complete installation involves the clamping fixture transducers and dampening material To apply dampening material refer to Installing Dampening Material on page 3 25 To install the V Series clamping fixture and transducers complete the following steps Installing the Fixture 1 Position the half of the clamping fixture with the threaded rods around the pipe as shown in Figure 3 7 below Orient the fixture in the 3 o clock position on a horizontal pipe 2 P
39. meter returns to the Drive Manager If you close and reopen the Drive Manager the file appears as one of the listed sites Note While sending or receiving files the PT878GC continues to perform measurements but at a slower rate than normal 6 18 Displaying and Configuring Data April 2009 Deleting a File To delete a file in the File Manager first be sure you have highlighted that site in the left window of the File Manager Then press MENU scroll to the Delete option and press ENTER The screen appears similar to Figure 6 15 below EEES Delete Confirmation Delete The Site A SIT Are You Sure Figure 6 15 The Delete Confirmation Window e Press F2 No to cancel the deletion and return to the File Manager or e Press F3 Yes to delete the site The File Manager appears with the highlighted site now deleted Displaying and Configuring Data 6 19 April 2009 Listing Files by Name If you want to list your files alphabetically by site name within the File Manager press MENU to open the File Menu Then press the gt arrow key to scroll from the File Menu to the Sort Menu shown in Figure 6 16 below Press ENTER The File Manager screen refreshes with the sites listed in alphabetical order File Manager MSDS DEFAULT SIT By Date Site TABLE MET FUNCTIO AAA LOG seinen 09 04 02 14 51 10 CCC LOG 5111 bytes Q LOG 118272 bytes free
40. mm Wall mm 5 15 708 2 Nominal Schedule Figure 4 3 The Pipe Option Window Programming Site Data 4 7 April 2009 Entering Pipe Parameters cont 1 The first prompt asks you to select the pipe material a Press ENTER to enter the material prompt b A drop down list of materials opens Table 4 1 below lists the available preprogrammed materials on the list Press the V or A keys to scroll to the appropriate material or scroll to Other for a material not on the list You can press the P key to scroll down by a page or the 4 key to scroll up by a page Table 4 1 Preprogrammed Pipe Materials Pipe Material Category Specific Material Al Aluminum Rolled Cu Copper Annealed or Rolled CuNi Copper Nickel 70 Cu 30 Ni or 90 Cu 10 Ni lene PVC CA or Acrylic E CC c Press ENTER to confirm the choice 4 8 Programming Site Data April 2009 Entering Pipe Parameters cont 2 At this point the program follows one of two paths a If you have selected a preprogrammed material the PT878GC automatically supplies the correct sound speed and proceeds to step 3 If you have selected Other the meter prompts you to enter the sound speed Use the numeric keys to type the known sound speed in the text box and press ENTER to confirm the choice 3 At this point two alternatives are available At t
41. phe Peg 2 12 SPeCIPICAtIONSS ida ads tt tir eran 11 4 Keys DESCTIPUON is a a ado 2 12 Kinematic Viscosity Entering 2 cece eee eee eens 4 51 April 2009 Index cont L Limits Options 24 nisin ie eae Ohne Bath ieee ict 6 5 Line Graph Display 22 0 cece cece eee ees 6 4 Lining Parameters Entering s eu eerren cece eee eee E 4 11 Listing Files By DOte arcos carro tao 5 17 bY Date iii a ca Was 6 20 ByN ca IO oi caseros 3 5 17 DY NOME cca et a oa bth eee ES 6 20 Listing Logs DY Di os 8 23 bY NOME nasake i kaa knas ita Bes at th dls oh Ae TN ah 8 23 Locale Option 4 4m Sick Shh Aes ee ise bee Ae 7 9 Koa E wen A dashes dese ts Bnet cae evsaed hatte Lime hee wees 8 18 COPA Ai Reet aes Rae eae Peele a 8 10 IA Eid lh bat Ne RN Ae pla shit oe 8 11 ENGINGIC SE oetheaulals ese Ra Ginna terest ale edevoe hs 8 15 IN Graph FORM oeda cc area niece ees 8 19 8 20 8 21 in Spreadsheet Format 0 cece eee eee eens 8 22 PTI orion ee eee ede EEA ea ee dai yee 8 13 Renaming O stars oasis hose Debo dato de 8 11 A O 8 15 SOPA dada 8 15 Transterrihigto PE acta a 8 13 LOG MANAGER vag tick tat einai a 8 3 SOP MO a e Seb owig EE E E eet ea iene EE ET 8 23 Log Menu In Log Manger Lia eee tele Ge te ete eee e 8 14 AA ie beset AEA EI AA E ENE EAT 8 5 Logging Menu Menu MAP ton id o a it es A 10 Logging Menus Entering ase eax sd sow senos a ag dart pea 8 2 Logs Deleting Alles a eh eae ae 8 12 Ending All cic 2
42. set of lower case letters and a set of symbols Use all three screens to create a desired message 4 Repeat this procedure for each letter or symbol you wish to add to the message If you wish to delete a letter press F1 Delete to erase each letter or symbol from right to left on the label 5 When you have completed the message press F3 OK to confirm the message or F2 Cancel to leave the window without adding the message 5 12 Creating and Managing Sites April 2009 Printing a File To print a file from the Site Manager press MENU to enter the File Menu press the gt arrow key once scroll to the Print option and press ENTER The PT878GC shows a message indicating that its infrared scanner is looking for a receiving device If the scanner finds no device a window appears indicating that the meter can find no device If it finds more than one compatible infrared device within range it asks you to select the desired device If successful the PT878GC returns to Operate Mode while the thermal printer prints out the current site Transferring a Site File to a PC To upload a site file to a PC you must have an infrared sensor connected to the PC or incorporated into the PC that can receive data from the PT878GC IR beam 1 Check that the Communications option see page 7 15 has been set to the IrDA protocol Note For Windows NT 4 0 check that the QuickBeam software available through the path C
43. supply for loop powered temperature transmitters Connect the inputs outputs using a LEMO multi pin connector as shown in Figure 2 2 on the previous page The pin numbers for the connector and the color code for the standard input output cable are shown in Table 2 1 on the next page Initial Setup 2 3 April 2009 Analog Input Output Connections cont Table 2 1 Cable Assembly for Analog Inputs Outputs Pin Number Wire Color Description 1 Black Analog Out 1 Red 16 V switched White Input A Temperature or Pressure Yellow Input B Temperature or Pressure Green Analog Ground Orange Digital Output Blue Digital Ground Violet Receive Monitor The Infrared Wireless Interface The PT878GC comes equipped with an internal infrared transceiver see Figure 2 2 on page 2 2 that enables communication between the meter and other IR devices particularly the IR ports or dongles IR to RS232 adapters of Windows based PCs Users can send and receive site and log data The PT878GC was designed for use with products that comply to the IrDA protocol For more information on establishing IR communications between the PT878GC and your PC refer to Appendix B 2 4 Initial Setup April 2009 Charging and or Replacing Batteries The PT878GC comes with self contained built in rechargeable batteries to support portable operation For optimum performance
44. symbol you wish to add to the label If you wish to delete a letter press F1 Delete to erase each letter or symbol from right to left on the label The label window can display up to 14 characters When you have completed the label press F3 OK to confirm the label or F2 Cancel to leave the window without adding the label Programming Site Data 4 35 April 2009 Entering General Purpose Analog Inputs cont 3 The next prompt asks for the Units Symbol a Press ENTER to reopen the text creation window b Repeat the procedure used for the Label on the previous page to create the Units Symbol c When you have completed the entry press F3 OK to confirm the symbol or F2 Cancel to leave the window without adding the symbol If you confirm the symbol the Units symbol will appear to the right of the zero and span text boxes 4 The next prompt asks for the zero input value a Press ENTER to enter the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm the entry 5 The final prompt asks for the span input value a Press ENTER to enter the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm the entry You have completed entering data for general purpose inputs 4 36 Programming Site Data Entering Analog April 2009 Inputs in Standard Volume or Mass Flow Option If you have enabled the Standard V
45. the gas in the pipe is not flowing the transit time downstream equals the transit time upstream When the gas is flowing the transit time downstream is less than the transit time upstream The difference between the downstream and upstream transit times is proportional to the velocity of the flowing gas and its sign indicates the direction of flow Features and Capabilities 1 5 April 2009 Chapter 2 Initial Setup Before making measurements you must prepare the TransPort for operation This includes the following procedures Making Electrical Connections Charging and or Replacing Batteries e Powering On and Off e Using the Screen and Keypad Obtaining On Line Help Figure 2 1 below shows the PT878GC in its specially designed case Figure 2 1 The PT878GC and Accessories Initial Setup 2 1 April 2009 Making Electrical Connections Before making measurements with the TransPort you must make all the necessary connections to the unit This section describes how to connect the following e Power e Transducer Analog Input Output e Infrared Interface Make all connections to the top of the TransPort unit as shown in Figure 2 2 below Please note that you only need to make the proper transducer connections The other connections are required for particular functions but are not necessary for basic operation Input Output XDCR See Table 2 1 on page 2 4 Upstream Downstream
46. these batteries require a minimum of maintenance Charging the Batteries When you receive the PT878GC you will need to initially charge the batteries The batteries must be charged up to 8 hours to receive the maximum charge When fully charged the batteries provide 8 hours of continuous operation An internal battery gauge indicates the remaining power in the batteries To charge the batteries simply plug the AC power module cord into the power jack shown in Figure 2 2 on page 2 2 and be sure the battery pack is installed When the PT878GC is plugged into line voltage the internal battery charger automatically charges the batteries whether the PT878GC is on or off If the PT878GC is on the Battery icon in the upper right corner of the screen indicates battery status as shown in Table 2 2 below IMPORTANT For CE compliance the PT878GC is classified as a battery powered device not to be used with the AC adaptor Table 2 2 Battery Status Icons Icon Battery Status il Full battery gt Partially full battery A Empty battery Fully charged battery connected to AC power BOE Charging battery 56060 Discharging battery Failure missing battery Notification to check battery form see page 7 5 Initial Setup 2 5 April 2009 Replacing the Batteries Caution Replace batteries only with the specified rechargeable batteries The battery charges when the unit is off Do not attempt
47. window without confirming the entries press F2 Cancel or the ESC key e To scroll to other windows press the 4 or P key 4 12 Programming Site Data April 2009 Entering Fluid Types and Speeds To access the Fluid option scroll to the Fluid entry on the Program Menu and press ENTER If you are already in the Transducer Pipe form press the arrow key to reach the Fluid window and press ENTER The screen appears similar to Figure 4 5 below To step through each parameter press the W key Refer to Figure A 3 on page A 3 of Appendix A Menu Maps Transducer Pipe Transducer Pipe Lining WAME Fluid Type Other Sound Speed 345 75 Figure 4 5 The Fluid Type Window 1 The first prompt asks for the gas type a Press ENTER to open the drop down menu The following choices are available Other e Air e Natural Gas e Steam Programming Site Data 4 13 April 2009 Entering Fluid Types and Speeds cont b Scroll to the appropriate entry If you do not see your fluid on the list select Other c Press ENTER to confirm your selection If you have selected a preprogrammed gas the PT878GC supplies the sound speed Pressing the W key returns you to the Fluid tab However if you have selected Other the PT878GC prompts you to enter the sound speed a Press ENTER to open the text box b Use the numeric keys to enter the know
48. with Modified Softkey To clear a softkey 1 Press MENU 2 From the Site Menu shown in Figure 6 6 on page 6 8 use the V or A arrow keys to move to the FKeys entry on the menu Press ENTER The screen now appears similar to Figure 6 8 on page 6 11 3 Use the V or A arrow keys to move to the desired Clear FKey 1 2 or 3 entry on the menu Press ENTER The softkey window clears You can also clear the softkey through the Configure FKey window by selecting Clear as an entry pressing ENTER and then F3 OK Note Since the customized softkeys are saved globally they will remain even if you change site files Displaying and Configuring Data 6 13 April 2009 Managing Files The Drive Manager On occasion you might want to review print or transfer some or all of the files in the PT878GC The Drive Manager allows you to view all the files stored in the meter To open the Drive Manager 1 Press MENU 2 From the Site Menu shown in Figure 6 6 on page 6 8 use the V or A arrow keys to move to the Drive Manager entry on the menu Press ENTER The screen now appears similar to Figure 6 11 below File Manager MIES Sort SYSLOG Info SYSLOG MET DEFAULT GLOBAL TABLE MET FUNCTIO AAA LOG BBB LOG 03 15 01 10 39 20 CCC LOG 6402 bytes Q LOG 91136 bytes free Figure 6 11 The Drive Manager Window The window on the left lists all the meter
49. x can Ae Sot A wn Sai Rn Soin awed 1 3 Fluid OPM coset ie Raise Ra ee es 4 13 Fluid Problems Fl wcell Problems sar tite hid Se PS OR ME GS 10 9 Fluid Speeds Entering 00 e cece eee eee eee 4 13 Fl TYDES ta ai E 11 2 Fluid Types Entering 2 cece eee eee eee eens 4 13 FORMOCOPUON Ac oscars coto oa 6 2 Forward Total Resetting s on sks Ged eo eek ced eee 7 18 4 April 2009 Index cont G Graph Display 4 4 AS Bhar ek is 6 4 H HeD ieee O ti AA Iii 2 14 Hyperterminal for Software Update 0 cece cece rr 9 46 mpulse Response Option ooooooooooocccccr or 9 39 nfrared Interface Fi 2 65 aes ealele TEO 9 43 OBEX nire ci e 9 43 nfrared Wireless Interface ccc eee cece 2 4 A See Oe ek She Bebe 2 1 Mput OULPUEs 0 2 EE ek E ee a do dd 1 4 nput Output Connections 0 0 cece eee ees 2 3 nputs Andog pulsa NDA Sao 2 3 Analog Entering iio copia da ri dera 4 34 in Standard Volume Option 0 00 cece eee oo 4 19 nputs Outputs SPECIRICAHONS 5 sahe aara o ora O rO tal cto rE ANR 11 5 R Communications Changing Parameters 2 cece eee eee eee eens 7 15 Establishing with PT878GC 6 eee eee B 1 COM Mica nai ctas 9 43 Updating Software with n 0 cee cece 9 46 FOBERE ta Pails dedi et wilt e bit oat hte de 9 43 Updating Software with 0 0 cece eee eee eee 9 44 K Keypad D SCrIDUON ci ic 2 12 Key DEScrHpuON mora rs da agin na i
50. 0 mA Integrate unt elate Cycle Number Min Threshold If Standard If Standard Volume or Mass Volume or Mass Data Source each Max Threshold Elow Enabled Flow Disabled of Peak A Divisor Noise Level SkanT Offset Meas Only Noise Level Percent Peak M gt S Switch Meas Only Meas Only Function Span Limit Meas N General Purpose On Error Delta N N Zero Hold Last Force Force Value Low High Yes No Limit SNR Test Shifts T Window No R Window Minimum Noise Level Meas Window Low SNR Error Level Noise Window Width Noise Window Offset Note Press F2 Cancel to cancel the entries and return to Menu Press F3 OK to confirm the entries and return to Menu Figure A 6 The Program Menu Scan Measure Analog Input and Analog Output Options Menu Maps A 7 April 2009 Menu See Figure Program A 6 Digital Output Correction Factors HA Function Frequency Points Gate Input Function Reynolds Correction Calibration Factor Pulse Totalizer
51. 11 bytes 118272 bytes free Figure 5 2 The Site Manager Window Note Each PT878GC comes preprogrammed with a basic site Default which serves as a basis for saving data and creating other sites The right section of the screen supplies information for the site highlighted in the list on the left the date time and file size as well as the amount of free memory remaining You can use the V and A arrow keys to scroll to a particular site and display information pertaining to that site To open the File submenu within the Site Manager press MENU and then ENTER The screen now appears similar to Figure 5 3 on page 5 3 5 2 Creating and Managing Sites April 2009 The Site Manager cont Site Manager MIE Site Sort New EFAULT SIT Open bite Save Save As Refresh Rename Delete 4 04 14 51 10 5TTT bytes 118272 bytes free Figure 5 3 The Site Manager Menu To create a new site go to page 5 4 To open an existing site thus replacing the current site go to page 5 6 To save a current site go to page 5 7 To refresh site information go to page 5 9 To rename a site go to page 5 9 To delete a site go to page 5 10 You can access four additional functions from the Site submenu shown in Figure 5 11 on page 5 11 To add a site message go to page 5 11 To print out a site go to page 5 13 To transfer a site to a PC go to page 5 13
52. 2 eee catia Sencha ad 1 3 TRANSGUCETS temi oi iee exis Ga eek eo Se Rea eed 1 3 Area Classifications 0 0 0 0 0 cece eee eens 11 6 CODES tao cea e g io Uae aida ste 11 7 CIAO A A ark eae hae at 3 1 Connectas cscs coda woe Neko ee ade Roe bea ees 2 3 April 2009 Index cont Entering Data Oe os case cats ean Caleta eae ead 4 3 MI coset ely dele oath tate cease Ble Bled od 11 6 MOUNT vta a ude a dn A ee dali habeas 11 6 PODES aa tada alee ct 10 11 o A 4 5 SPCCITICALIONS iio ic a o ad 11 6 Temperature RODES ee cssecetesdpede thy Se ra ey 11 6 Thickness GAUGE etico eii do 11 8 Wetted or cla MPa os OS 4 3 Transfer LC A AAA a iaa 8 13 Transit Time Theory of 0 cece cece eee ro 1 5 Transmit Signal Generator 0 eee eee 1 4 TOSI Moo ccc de eve a ele ooh Somes bah a tS 1 4 Transmitter Sample Size n nananana 9 26 Traverses Entering Number 00000 e ee ooo 4 16 Troubleshooting esiin ceca ered dial 10 1 ELTOr MessdgeS sie bases tes bin vale ates cle tases bib eas 10 2 TRAINS RY OPT cine cet acincw are A eeen 2 7 Twitime delay n vcam acs dons read dees Lah we ee 4 5 U Unit Op sarta sas Mae ees RIA 7 3 User FUNCIONS OP il 4 46 User Functions Entering ooooocoooocooccorrorc 4 46 User Table Optio Gee Ae Phe ee te hele ed 7 19 User Tables CheGtinG cocoa iaa Alea 7 19 V V4 and V8 Clamping Fixture Installing 3 14 Velocity Averaging cece cece eee teen ences 9 27 Velo
53. 3 Repeat step 2 to enter the Maximum value 4 When you have finished press F2 Cancel to cancel the entries or F3 OK to confirm the entries and change the graph 8 20 Logging Data April 2009 Displaying Log Data in Graphical Form cont If you wish to alter the time scale press F2 Time The Enter Time window appears similar to Figure 8 14 below AAA LOG P Up E TE EEE Enter Time Start Date Start Time 2004 03 01 13 23 41 PM End Date End Time 2004 03 01 13 53 41 PM Figure 8 14 The Enter Time Window 1 Use the arrow keys to scroll to the desired text box Press ENTER to open the box 2 Two alternatives are available to change a highlighted date or time Use the numeric keys to enter the desired number Use the V or A arrow keys to scroll in 1 digit increments to the desired number For example if the text box displays 09 pressing the V key twice changes the number to 07 You can scroll from 01 to 12 for the month from 01 to 31 for the day depending on the number you have selected for the month and from 0 to 59 for minutes and seconds In either case press ENTER to confirm the entry 3 Repeat step 2 for any other entries you wish to change 4 When you have finished press F3 OK to confirm the entries and close the window Logging Data 8 21 April 2009 Displaying Log Data in Spreadsheet Form To view a log in spr
54. 37 9 4 0 5 200 14 8 85 25 9 68 20 7 51 15 6 0 2 300 20 4 126 38 4 102 31 1 75 22 0 lt 0 50 12 7 0 5 500 35 5 85 25 9 68 20 7 51 15 6 0 2 600 40 8 126 38 4 109 31 1 75 22 0 lt 1 00 25 4 0 5 800 56 2 85 25 9 68 20 7 51 15 6 0 2 1200 81 6 126 38 4 102 31 1 75 22 0 12 300 lt 0 38 9 7 0 5 200 14 8 70 21 3 56 17 1 42 12 8 0 2 300 20 4 105 32 84 25 6 63 19 2 lt 0 50 12 7 0 5 500 35 5 70 21 3 56 17 1 42 12 8 0 2 600 40 8 105 32 84 25 6 63 19 2 lt 1 00 25 4 0 5 800 56 2 70 21 3 56 17 1 42 12 8 0 2 1200 81 6 105 32 84 25 6 63 19 2 14 350 lt 0 38 9 7 0 2 300 21 7 103 31 4 77 23 5 62 18 9 lt 0 50 12 7 0 2 800 56 2 16 400 lt 0 38 9 7 0 2 300 21 7 90 27 4 67 20 4 54 16 5 lt 0 50 12 7 0 2 800 56 2 Installing the Dampening Material Transducers and Fixtures 3 7 Pipe Size ANSI DIN Table 3 2 PT878GC Installation Requirements for Natural Gas Continued Pipe Wall Inches mm Transducer MHz Min Pressure psig bar Maximum Velocity ft s m s April 2009 Single Traverse Dual Traverse Triple Traverse Four Traverse 18 450 lt 0 38 9 7 0 2 300 21 7 lt 0 50 12 7 0 2 800 56 2 78 23 8 59 18 0 47 14 3 20 500 lt 0 38 9 7 0 2 300 21 7 lt 0 50 12 7 0 2 800 56 2 70 21 3 52 15 9 42 12 8
55. 60 5 1 90 27 4 90 27 4 1 25 lt 0 14 3 6 1 60 5 1 90 27 4 90 27 4 1 1 2 40 lt 0 15 3 8 1 60 5 1 ES 90 27 4 57 17 4 2 50 lt 0 16 4 1 1 60 5 1 90 27 4 a 75 22 9 45 13 7 3 75 lt 0 2 1 60 5 1 120 36 6 69 21 0 46 14 0 lt 0 22 5 6 0 5 4 100 lt 0 2 1 60 5 1 120 36 6 53 16 2 35 10 7 lt 0 24 6 1 0 5 60 5 1 lt 0 34 8 6 0 5 180 13 4 lt 0 68 17 3 0 5 300 21 7 6 150 lt 0 2 1 60 5 1 90 27 4 72 22 0 54 16 5 lt 0 28 7 2 0 5 60 5 1 0 2 200 13 6 135 41 5 108 32 9 81 24 7 lt 0 44 11 2 0 5 180 13 4 90 27 4 72 22 0 54 16 5 0 2 600 40 8 135 41 5 108 32 9 81 24 7 lt 0 87 22 1 0 5 300 21 7 90 27 4 72 22 0 54 16 5 0 2 1000 68 135 41 5 108 32 9 81 24 7 8 200 lt 0 33 8 4 0 5 60 5 1 80 24 4 64 19 5 48 14 6 0 2 200 13 6 120 36 6 96 29 3 72 21 9 lt 0 50 12 7 0 5 180 13 4 80 24 4 64 19 5 48 14 6 0 2 600 40 8 120 36 6 96 29 3 72 21 9 lt 0 88 22 4 0 5 300 21 7 80 24 4 64 19 5 48 14 6 0 2 1000 68 120 36 6 96 29 3 72 21 9 10 250 lt 0 37 9 4 0 5 60 5 1 70 21 3 56 17 1 42 12 8 0 2 200 13 6 105 32 84 25 6 63 19 2 lt 0 50 12 7 0 5 180 13 4 70 21 3 56 17 1 42 12 8 0 2 600 40 8 105 32 84 25 6 63 19 2 lt 1 00 25 4 0 5 300 21 7 70 21 3 56 17 1 42 12 8 0 2 1000 68 105
56. 7 April 2009 Setting up the Measurement Mode The PT878GC can take measurements in four different ways Skan is a low resolution technique for locating the acoustic signal and for high velocity measurements It is more robust in a noisy environment than the Measure technique Measure is a more precise technique best used for low velocity measurements You can choose from Skan Measure Count the default technique or Skan Measure Integrate the traditional Skan Measure mode A variation the Skan Correlation mode is used primarily for liquid flow measurement Note Do not change the measurement mode or values unless recommended by GE Sensing From the Signal Parameter tab press the P arrow key to move to the Meas Mode tab The window appears similar to Figure 9 17 below Signal Setup Signal Param WUSA GE Pulse Code Measure Mode Detection Method O Integrate Count Correlate Skan Measure Setup Figure 9 17 The Measurement Mode Window in the Signal Setup Option 9 28 Servicing the PT878GC April 2009 Setting up Measurement Mode cont The first prompt asks for the measurement mode detection method Use the lt d and P arrow keys to move to the appropriate radio button and press ENTER You must now enter the setup data covered on page 4 23 if you have not already done so Pressing the W key takes you to Skan Measure Setup Press ENTER to open the
57. 76 2 mm Pipe Materials Most standard metal and plastic pipe materials Accuracy 1 typical or 0 002 in 0 05 mm Thermal Exposure Continuous operation to 37 C 100 F Intermittent operation to 260 C 500 F for 10 sec followed by 2 min air cooling Additional Options PC Communication The PT878GC communicates with a PC through the infrared interface and Windows operating systems Consult the manual for details on sites logs and other operations with a PC RS232 to Infrared IR adapter plugs into any available serial port to give desktop PCs infrared capability Printer Infrared portable thermal printer with rechargeable battery and 120 to 240 VAC power supply recharger e 13 oz 370 g 6 3 x 6 5 x 2 3 in 160 x 164 2 x 59 mm print width 4 in 104 mm 11 8 Specifications April 2009 Appendix A Menu Maps Menu oa En oo See See See See Figure See e Figure A 2 Figures Figure A 9 A 10 A 3 A 8 to A 7 Figure A 1 The Main Menu Menu Maps A 1 April 2009 Manager Fkeys 3 Clear F1 Menu Item nsfer
58. 8 12 below AAA LOG PHUp 2004 03 01 2004 03 01 13 23 41 PM 13 53 41 PM Figure 8 12 The Log Graph Display Window Note Ifa log contains more than one measurement you must select which measurement to plot from the list displayed Ifyou wish to alter the graph scale press F1 Scale The window appears similar to Figure 8 13 on the next page If you wish to alter the time scale press F2 Time The window appears similar to Figure 8 14 on page 8 21 e To leave the window press F3 Exit Logging Data 8 19 April 2009 Displaying Log Data in Graphical Form cont Limits Max Range _ Set Minimum 0 1234 Maximum 0 5678 2004 03 01 2004 03 01 13 23 41 PM 13 53 41 PM Figure 8 13 The Y Axis Window The Y Axis window allows you to specify whether the Y axis on the graph extends to the maximum value Max over the entire range Range or between certain specified values Set 1 Use the lt 4 and P keys to scroll to the desired limit type Press ENTER to confirm the entry If you select Max or Range for limits you have finished entering data in this form But if you select Set the PT878GC asks for minimum and maximum limits 2 Press the W key to reach the Minimum text box a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm the entry
59. Battery Type NiCd Backup Battery OK Part Number 1 8Ahr NiCd 200 058 Condition Battery Figure 7 3 The Battery Charger Window Programming Meter Settings 7 5 April 2009 The Battery Charger cont 3 To condition the batteries press the ENTER key The Condition Battery window should now read Stop The status line should change to Discharging Updating the status could take up to 30 seconds Note tis advisable to condition NiCad batteries when their run time is reduced to 50 of their previous run time 4 To stop the discharge cycle press the ENTER key and the Condition Battery window reappears The status now changes to On Charger 5 Press F3 OK to return to Operate Mode 7 6 Programming Meter Settings April 2009 Entering Date and Time In Operate mode the Status Bar displays the current date and time above the measurements in the upper right corner of the screen The Date Time option allows you to set the date or time which are required for correct data logging operation To set the time 1 From the Meter menu scroll to the Date Time entry and press ENTER The Meter Settings window reopens as shown in Figure 7 2 on page 7 3 2 From the Units option press the W key once to reach the date text box This box displays the current meter date 3 Press ENTER to enter the text window The meter highlights the first number Use the
60. Dampening Material Transducers and Fixtures 270 19 6 49 14 9 39 11 9 29 8 8 3 6 Table 3 2 PT878GC Installation Requirements for Natural Gas April 2009 Maximum Velocity ft s m s Pipe Size ANSI Pipe Wall Inches Transducer Min Pressure DIN mm MHz psig bar Single Traverse Dual Traverse Triple Traverse Four Traverse 2 50 lt 0 16 4 1 0 5 200 14 8 110 33 5 88 26 8 66 20 5 3 75 lt 0 22 5 6 0 5 200 14 8 120 36 6 96 29 3 72 22 0 48 14 6 4 100 lt 0 24 6 1 0 5 150 11 4 120 36 6 96 29 3 72 22 0 48 14 6 lt 0 34 8 6 0 5 400 28 6 lt 0 68 17 3 0 5 800 56 2 6 150 lt 0 28 7 2 0 5 150 11 4 120 36 6 96 29 3 72 22 0 0 2 250 17 180 54 9 144 43 9 108 32 9 lt 0 44 11 2 0 5 400 28 6 120 36 6 96 29 3 72 22 0 0 2 500 34 180 54 9 144 43 9 108 32 9 lt 0 87 22 1 0 5 800 56 2 120 36 6 96 29 3 72 22 0 0 2 1000 68 180 54 9 144 43 9 108 32 9 8 200 lt 0 33 8 4 0 5 175 13 1 100 30 5 80 24 4 60 18 3 0 2 250 17 150 45 7 120 36 6 90 27 4 lt 0 50 12 7 0 5 400 28 6 100 30 5 80 24 4 60 18 3 0 2 500 34 150 45 7 120 36 6 90 27 4 lt 0 88 22 4 0 5 800 56 2 100 30 5 80 24 4 60 18 3 0 2 1000 68 150 45 7 120 36 6 90 27 4 10 250 lt 0
61. Display Screen Configuring 0 cece eects 6 9 Displaying Data as Graph 2 eee eee eee ee 6 4 Displaying Details x ow et rt Reh ee 8 18 Drive MANJET cio oa ia Sa tee Beha eae bed pales 6 14 April 2009 Index cont E Electrical COMMECHONS A ici AA AAA 2 2 Electrical COnNEctioNS secie Ni 2 2 Ele CHOMICS Ss iia taa la dish te 11 4 GCONMMECHONS ricas rra ee ts qe 2 2 DESCRIP tc ra as 1 4 Error Mess So A e a 10 2 Theory of Operation 0 eee eet eens 1 5 ENGIOSULES xa yee als nets ee he ob alekls veh n pea sa hern oie 11 4 EMGIISH UNIS cacaos ido crete Gare ad 7 3 ENTRY e ea EL at wh ala kes ath a ae TS 2 12 ENORMES Opus nda 9 32 ErTOr Message ica inn a hie hee Sa 10 2 BOttery cada a A A AS ets 2 5 Errors AloWE dd ti a tt ot 9 27 European Compliance SPCCiTICALIONS iia triste 11 5 ENT sarees ok aged E mind Satin Deore eats eke 2 12 F Factory Default Options 2 5923 con ee arrays 9 42 FEGtUPE Soi rt o ca 2 12 File Transferring to Pl td 6 16 6 17 File Manager SOP Mea o A is 6 20 File Menu LOMAS LA bed Ge Bo 8 4 File Transferring from PC 000 e eee 5 15 6 17 6 18 FIXtUre Matera vv tung meet arts Seekers a 11 6 Flash Update cece cok ra oa hale eR SSE ew RS 9 43 Flash Update Option 00 ccc eee eee eee es 9 44 9 47 Flow Measurement 2 00 c cece cece e eee ete eee 11 4 FlOWGellis oi a O att wines gas ete 1 3 Description inercia dd 1 3 FlOWCelRPI DING
62. E Sereen iia otters oa der at meena 9 36 Testing the KEYS ciar SN te on ai ys 9 37 Testing the Watchdog Timer Circuit oooooooooooo 9 38 Setting Impulse Response 0 cece eee eee eee 9 39 Taking Wave Samples for DIAGNOSIS ooooooo oo 9 40 Applying a Stored Signal for DiagnosiS 9 40 Testing the Battery 20 0 0 ccc ccc nnn ene ees 9 41 Resetting to Factory Default Parameters o oo oo o 9 42 Updating PT878GC Software neta cence eens 9 43 Updating Software Via IrOBEX 00 c cece eee eee 9 44 Updating Software Via ICOMM 0 ccc cece eee eee 9 46 Chapter 10 Diagnostics and Troubleshooting Error Code Messages t 10 2 Displaying Diagnostic Parameters 0 0 c cece eee es 10 6 Flowcell Problems tias nacos ol taney op ate 10 9 Gas Problemas ida aio aes Mes SE ee 10 9 Pipe ProbleinSyss asia sio ado 10 10 Transducer Problemas ntc ts it Er TIAA 10 11 April 2009 Table of Contents cont Chapter 11 Specifications Operation and Performance EE ccc ence eee 11 2 FIGHT DOS Hey ce teat heer Mian a Mie sh a dre ta 11 2 Pipe Sies esac od ton eines ate Ot ia ada ote Sed eles 11 2 Pipe Wall TEKNE SS sats syne seve dulent dsd 11 2 Pipe MLC HIG Sines icc a e ii ao ea oe 11 2 Clamp On Flow Accuracy Velocity oooooooo ooo 11 2 Repeta lados sateen sar E tos ho io 11 2 Range Bidirectional osc sins desastrosas dedos 11 2 Rang
63. FIMEF GILCUIL orcos tiles na adan Yiia 9 38 Theory of Operation cocina o canis ie eA 1 5 Thermal ExpOSure on iena i a in e taa ia aae teens 11 8 Thickness Gio 0 ce Ag a R n T R er 9 12 9 13 Displaying in Graphical Format o 9 10 9 11 Displaying in Numeric Format 000 eee eee o 9 9 Thickness Gage Theory of Operation 0 cece eee eee C 1 Thickness Gauge Calibrating vacia iaa TRARA 9 12 9 13 Entering Programming Data 2 cee eee eee eee 9 17 Low Signal Threshold 0 0 0 c cece eee eee 9 18 Setup sat Sint ee de Di elo ats e 9 5 9 6 A a ete Ree ias 9 14 9 15 SPECIMCOUONS at haters yeas eas ea cette aaa a 11 8 Thermal EXPOSUE avi Santee dita care ate AM SES 11 8 Thickness Gauge Setup 22 eects 9 18 Detection Threshold cerre tenoren cece eee eee eens 9 19 Signal Inversion ea less 9 18 9 31 Transducer Delon tas 9 18 Time Delay Entering occ soi ad ee eas 4 5 Time EMER ORs sto oot hae elo la der ir si 7 7 Timing Cireuits se eek a ae ada eee tea a eae Stearns ead 1 4 Totals Resetting 250s 2G ese Ra aoe thd ae a a 7 18 Transducer Connections 0 cece eee et eee 2 3 Transducer Delay ocios Sad Mima ola hah ee 9 18 Transducer Number Entering 0 00 cece eee eee eee 4 4 Transducer Opon cd dd dada 4 3 Transducer Signal Limits 0 000 cece eee eee eee 9 32 Transducer Spacing Entering 22 0 0 eee e eee eee eee 4 16 TRANSDUCERS 22
64. Figure 6 16 The Sort Submenu Listing Files in Chronological Order If you prefer to list your files chronologically by time of creation within the File Manager press MENU to open the File Menu Then press the P arrow key to scroll from the File Menu to the Sort Menu and scroll to the By Date option Press ENTER The Site Manager screen refreshes with the sites listed in chronological order from the most recent to the earliest 6 20 Displaying and Configuring Data April 2009 Accessing Meter Data The About Option The About option displays useful information concerning the model number and software version of your PT878GC While the window normally appears briefly at startup users might want to access the information for a longer period To open the About window scroll to the About option on the Site Menu and press ENTER The screen appears similar to Figure 6 17 below GE Industrial Sensing PT878GC Portable Flowmeter Copyright 2002 General Electric Co All rights reserved This product is protected by copyright law and international treaties Unauthorized distribution decompilation or reverse engineering may result in severe civil and criminal penalties Figure 6 17 The About Window To find out details about your specific software version press Next F2 To return to Operate Mode press ESC or Exit F3 Displaying and Configuring Data 6 21 April 2009 Chapter 7 Programming Meter
65. GE Sensing amp Inspection Technologies TransPort PT878GC Portable Gas Flowmeter User s Manual GE Sensing amp Inspection Technologies TransPort PT878GC Portable Gas Flowmeter User s Manual 910 229B3 April 2009 April 2009 Warranty Each instrument manufactured by GE Infrastructure Sensing Inc is warranted to be free from defects in material and workmanship Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument at the sole discretion of GE Infrastructure Sensing Inc Fuses and batteries are specifically excluded from any liability This warranty is effective from the date of delivery to the original purchaser If GE Infrastructure Sensing Inc determines that the equipment was defective the warranty period is e one year from delivery for electronic or mechanical failures e one year from delivery for sensor shelf life If GE Infrastructure Sensing Inc determines that the equipment was damaged by misuse improper installation the use of unauthorized replacement parts or operating conditions outside the guidelines specified by GE Infrastructure Sensing Inc the repairs are not covered under this warranty The warranties set forth herein are exclusive and are in lieu of all other warranties whether statutory express or implied including warranties or merchantability and fitness for a particular purpose and warranties arising from co
66. MateridlS ss wea stout a plese anal idas Soy aah 11 6 MOUNLINGS pen a cece at nn ttn Shed ah eines 11 6 Mounting Couplants s 06sec ise G1g ata ee She a 11 6 Area ElassificAtIONS Coria tai ey ile ye ao 11 6 Transducer Cables cias dorsal op weep elsa 11 7 Thickness Gauge Option o oooooococccococoroconrn rro 11 8 ic wi a AAA aa Sees ek een 28 11 8 Pipe Thickness RANGE 26 6 6 cece nnn eee ees 11 8 Pipe Matarile morira a adds bardas 11 8 ACCUTANE Bua Oh 11 8 Thermol Exposure tenias a atte ae ak eects Bae 11 8 Additional Options s eaea a rr aara e e Aea cece oro 11 8 PE COMMUNICATION oeeie Grego enh EEA KE TE A 11 8 RS23 AAM E e ere aa ol ap dy aw Seeds 11 8 Printe Temose mee A tna EE Sawant aay A O ees 11 8 Appendix A Menu Maps Appendix B Establishing IR Communications with the PT878GC Windows 2000 XP ccc cece cece ecueeeeeeueeeeurees B 2 Windows NAO Mesas con ale do eet eed aa ier a ad B 3 Windows Me 98SE 98 95 0 ccc cece cece c ence eeueeees B 3 Appendix C Ultrasonic Thickness Gauge Theory of Operation Factors Affecting Performance and Accuracy 00000 C 2 Appendix D Material Safety Data Sheets for Couplants xi April 2009 Chapter 1 Features and Capabilities The TransPort Model PT878GC is a transit time clamp on gas flowmeter which combines all the features of a full size gas flowmeter with the advantages of a portable instrument This section describes the TransPort feat
67. Note You cannot restart a finished log You must create a new log with the same parameters Logging Data 8 15 April 2009 Pausing All Logs To pause all logs that are currently pending or running open the Log menu scroll to the Pause All Logs option and press ENTER The PT878GC returns to the Log Manager which displays all logs programmed to run now or in the future with a status of Paused Restarting All Logs To restart all paused logs open the Log menu scroll to the Start All Logs option and press ENTER The PT878GC returns to the Log Manager which displays the logs with a status of Pending or Running Ending All Logs To end all currently pending or running logs open the Log menu scroll to the End All Logs option and press ENTER The PT878GC returns to the Log Manager which displays the running logs with a status of Finished View All Sites To check on all logs open the Log menu scroll to the View All Sites option and press ENTER Logs are associated with the site in use at the time the log is created Thus when another site is in use the PT878GC automatically starts different logs By default the Log Manager only displays the logs created with the current site View All Sites allows the Manager to list logs for all sites 8 16 Logging Data April 2009 The View Menu Through the View menu you can view the data of individual logs in graphical or spreadsheet formats To op
68. Program Files QuickBeam Suite is running and that the IR beam on the PT878GC has clear access to the IR sensor connected to the PC port 2 Highlight the desired site in the left window of the Site Manager 3 Press MENU to open the File Menu press the P arrow key once scroll to the Transfer option and press ENTER The screen shows a message indicating that the PT878GC is searching for an infrared device If the scanner finds no device a window appears with this message and asks if you want to try again If it finds a device it sends another message indicating that it is uploading the site The meter also displays a message if the upload fails When the upload is complete the meter returns to the Site Manager The PC holds the transferred file in the QuickBeam or IR Inbox folder as shown in Figure 5 13 on page 5 14 You can open the file on the PC using any text editor Creating and Managing Sites 5 13 April 2009 Transferring a Site to a PC cont wa C lr_Inbox File Edit View Help Default2 sit 1 object s selected 6 24KB Figure 5 13 The IR_Inbox Folder with Transferred Site File Transferring a File as Text If you want to review site programming data as text the PT878GC can transfer a site file to a PC in a Unicode text format that can be opened by text editors such as Notepad or Word Again you must have an infrared sensor connected to the PC or incorporated into the PC that can receiv
69. R to confirm the entry Pressing the A key returns the meter to the Standard Volume prompt and then to the Settings tab To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key 4 18 Programming Site Data April 2009 Entering Inputs in the Standard Volume Option To enter input parameters in the Standard Volume Mass Flow option return to the Settings tab at the top of the Standard Volume window Press the gt arrow key and ENTER to open the Inputs window The screen appears similar to Figure 4 8 below To step through each parameter press the W key Std Vol Mass Flow Settings Inputs Mass Flow Pressure 0 Fixed O Active Pressure 1 01 Input A Temperature e Fixed O Active Temp C Input B Figure 4 8 The Inputs Tab in the Standard Volume Mass Flow Option 1 The first prompt asks if the pressure is fixed or active a Use the lt 4 and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection Programming Site Data 4 19 April 2009 Entering Inputs in the Standard Volume Option cont 2 The next prompt appears if you have selected a fixed pressure The PT878GC asks for the fixed pressure value a Press ENTER to open the text box b Use the numeric ke
70. Scroll to the desired output type o Press SEL to confirm your selection d The prompt then moves to a list of unit types The available units depend on the selection made at the Data Source prompt Scroll to the desired output unit o Press F3 OK to confirm your selection 4 40 Programming Site Data April 2009 Entering the Analog Output cont 3 The next prompt asks you to enter the zero base value for the analog output This value represents the 0 4 mA output in flow units a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your selection The next prompt asks you to enter the span full scale value for the analog output This value represents the 20 mA output in flow units a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your selection The last prompt On Error asks you to select how the PT878GC will handle the analog outputs in the event of a fault condition The meter offers three alternatives Hold Last Value hold the last good reading Force Low force the reading to 0 or 4 mA Force High force the reading to 20 mA a Press ENTER to open the drop down menu b Scroll to the desired selection c Press ENTER to confirm your selection You have completed entering data in the Analog Output option To confirm the ent
71. Skan Measure option and enter the parameters discussed on page 4 23 You have completed entering data for the Measurement Mode To leave this window e Press the A key to return to the Measurement Mode tab and the 4 arrow key to move to the Signal Parameter tab or the P arrow key to move to the Pulse Code tab e Press F2 Cancel to return to Operate Mode without confirming the changes Press F3 OK to confirm the new data and return to Operate Mode Servicing the PT878GC 9 29 April 2009 Setting Up Pulse Code Parameters When you select the Skan detection method you must also choose what type of signal to send to the transducers either a coded signal at 1 2 4 11 or Twin bits or a specific number of pulses to be sent From the Meas Mode tab press the P gt arrow key to move to the Pulse Code tab The window appears similar to Figure 9 18 below Signal Setup Signal Param Peak Detect Batle Transmit Code 4 Use Pulses Pulses 8 Signal Inversion On Off Figure 9 18 The Pulse Code Window in the Signal Setup Option 1 The first prompt asks for the number of bits in the coded signal a Press ENTER or SEL to open the drop down list b Use the V or A arrow keys to scroll to the recommended number c Press ENTER to confirm your selection 9 30 Servicing the PT878GC April 2009 Setting Up Pulse Code Parameters c
72. TER to confirm your selection If you selected Frequency The prompt asks for the minimum and maximum range of measurements frequencies and the duty cycle percentage For each parameter a Press ENTER to open the text box b Use the numeric keys to enter the desired value Once you have entered a number you can use the A or W key to step through to the desired value c Press ENTER to confirm your selection d For the minimum and maximum values press the P key to move to the box to the right and repeat the procedure 4 44 Programming Site Data April 2009 Entering the Digital Output cont If you entered Test Points The prompt asks for the signal type from two choices transmit or receive a Press ENTER to open the drop down menu b Scroll to the required signal c Press ENTER to confirm your selection If you entered Gate Input 1 The first prompt asks for the gate active a Press ENTER to open the drop down menu b Scroll to the gate either Contact Open or Contact Closed c Press ENTER to confirm your selection 2 The remaining prompt asks for the mode automatic or manual a Press ENTER to open the drop down menu b Scroll to the required mode c Press ENTER to confirm your selection Stopwatch Totalizer Through the Gate Input option you can implement the Stopwatch Totalizer function to measure totals manually To set up the Totalizer function 1 At the Gate Ac
73. The Limits Option Once you have configured a parameter as a line or bar graph you might need to change its presentation or values The Limits option replacing the Format option for line and bar graphs enables you to program the minimum or maximum values displayed the time interval and the display of the average value To enter the Limits option 1 Press SEL from the Operate Mode window until you have reached the desired measurement 2 Press ENTER to open the Display Menu 3 Be sure the Limits option is highlighted and press ENTER The screen appears similar to Figure 6 4 below Set Line Graph Parameters Velocity Minimum 45 72 Maximum 45 72 Seconds Use Lines Plot Average Value Show Minimum and Maximum Figure 6 4 The Line or Bar Graph Parameters Window Displaying and Configuring Data 6 5 April 2009 The Limits Option cont 4 The first prompt asks for the minimum value shown in the graph a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm the value 5 Repeat the procedure in step 5 to enter the maximum value A line graph involves two more prompts 6 The next prompt asks for the display interval a Press ENTER to open the text box Use the numeric keys to enter the desired number Press ENTER to confirm the value b The seco
74. Use the V or A arrow keys to scroll to the desired format c Press ENTER to confirm your entry 3 The next prompt asks you to select the date format a Press ENTER to open the drop down menu Three options are available YYYY MM DD year month day MM DD Y Y Y Y month day year DD MM Y Y Y Y day month year b Use the W or A arrow keys to scroll to the desired format c Press ENTER to confirm your entry 4 The PT878GC now asks you to select whether you want the time presented in a 12 hour format for example 11 53 23 PM or in a 24 hour format 23 53 23 a Press ENTER to open the drop down menu b Use the V or A arrow keys to scroll to the 12 hour or 24 hour entry c Press ENTER to confirm your entry 7 10 Programming Meter Settings April 2009 Changing Date and Time Appearance cont A line at the bottom the Date Time Decimal Formats displays how the format and separator selections will appear on the screen Pressing the V arrow key returns the PT878GC to the Locale tab To confirm the entries and return to Operate Mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Meter Settings 7 11 April 2009 Adjusting the Contrast For more comfortable viewing in a particular environment the PT878GC enables you to adjust the screen contrast To adjust the screen contras
75. ages 8 8 and 8 9 to modify any parameters 6 When you have completed modifying the log parameters press F2 Cancel to cancel the log or F3 Activate to confirm and start the new log The PT878GC returns to the Log Manager which now displays the status of the cloned log Note Some changes in the site file could prevent log cloning 8 10 Logging Data April 2009 Renaming a Log To rename a log 1 First select the log you wish to rename in the Log Manager shown in Figure 8 3 on page 8 4 2 Then open the File menu scroll to the Rename option and press ENTER 3 The Rename Log window opens Except for the heading the window is identical to the Create New Log window shown in Figure 8 4 on page 8 5 Follow the procedure discussed on page 8 5 to create a log name and press F3 OK to confirm the name The PT878GC returns to the Log Manager which highlights the renamed log Deleting a Log To delete a log 1 First select the log you wish to delete in the Log Manager shown in Figure 8 3 on page 8 4 2 Then open the File menu scroll to the Delete option and press ENTER 3 A delete confirmation window opens as shown in Figure 8 8 on the next page Press F2 No to stop the deletion or F3 Yes to delete the log The Log Manager reappears with the specified log deleted Logging Data 8 11 April 2009 Deleting a Log cont TE Elarcte GI Delete Log 555 LOG
76. apter 1 Features and Capabilities OVERVICW 4 cvis tds Ss 1 1 System Description 2 ete errereen 1 3 TNE FIOWGEII ca pie ii eal de aceite tea 1 3 El ctronles PACKAGES excusas calandra 1 4 Theoy olope ronne eree tetas oaths ah coe etna eee 1 5 Chapter 2 Initial Setup Making Electrical Connections 00 0 c ccc ene e ene ee 2 2 PowerConnect oS A a E AU aint 2 3 Transducer Connections 00 0 e cece eee eee eens 2 3 Analog Input Output Connections s sassari reran 2 3 The Infrared Wireless Interface 00 c cece eee eee 2 4 Charging and or Replacing Batteries oooooooooooo 2 5 charging the Batteries sorer rrr ade eTA abe ta bores 2 5 Replacing the BATCHES orere mala dr ra ola 2 6 Powering On Gnd OF 22 case eere e Hint ale a cane dain ats 2 7 Using the Screen and Keypad 0 c ccc cnn 2 10 SIAL eran o Me 2 10 Key pod acctescag adda ag hand da tac eee 2 12 Obtaining On Line Help 0 cece cee cece ence ee 2 14 Chapter 3 Installing the Dampening Material Transducers and Fixtures Application Requirements 2 0 ccc ccc cence eee ees 3 3 Preparing the Pie A a 3 10 Performing d Pipe Survey 0 0 ccc ccc cen 3 11 Obtaining the Transducer Spacing 6 0 cece eee 3 13 Installing the V Series Clamping Fixture and Transducers 3 14 nstalling the Fixture 6 cence eee nea 3 14 nstalling the Transducers 00sec e
77. arking Circumference Lines Figure 3 5 Meas Installing the Dampening Material Transducers and Fixtures 3 11 April 2009 Performing a Pipe Survey cont 4 Now measure the OD and the wall thickness at eight points along the pipe circumference at 45 intervals shown in Figure 3 6 below three times per point and record the mean values Figure 3 6 Measuring the OD and Pipe Wall Thickness 5 Prepare the pipe for the dampening material by removing any rust or loose paint and sanding down any rough spots in an area 12 in long around the circumference of the pipe Take care to preserve the original pipe curvature 6 At the approximate location of each transducer prepare an area 100 mm 4 in long by 50 mm 2 in wide for CRV type transducers and 100 mm 4 in wide for CRW type transducers Remove any paint or rust and polish the cleared area taking care to preserve the original curvature of the pipe Note fthe paint is in a thin smooth layer removal is not necessary 3 12 Installing the Dampening Material Transducers and Fixtures April 2009 Obtaining the Transducer Spacing 1 Using the measured OD and the pipe wall thickness program the PT878GC discussed in Chapter 4 Programming Site Data to determine the required transducer spacing To determine the PT878GC correction factor calculate the mean inside pipe diameter ID and the pipe ID at the transducer locations Then divide the square of the
78. ass Flow entry on the Program Menu and press ENTER The screen appears similar to Figure 4 7 below To step through each parameter press the W key Refer to Figure A 5 on page A 5 of Appendix A Menu Maps Std Vol Mass Flow SUMEN Inputs Mass Flow Standard_Volume Enabled O Disabled Base Pressure 1 0 Bars Atmospheric Pressure 1 0 Bars Base Temperature 5 C Figure 4 7 The Standard Volume Option Window 1 The first prompt asks if you want to disable or enable the Standard Volume option a Use the lt 4 and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection Note Ifyou select Disabled you cannot select any other prompts in this window Programming Site Data 4 17 April 2009 Entering the Standard Volume Parameters cont 2 The next prompt asks for the base pressure a Press ENTER to enter the text box b Use the numeric keys to enter the known pressure c Press ENTER to confirm the entry 3 The next prompt asks for the atmospheric pressure a Press ENTER to enter the text box b Use the numeric keys to enter the local atmospheric pressure c Press ENTER to confirm the entry 4 The final prompt in this window asks for the base temperature in degrees F or C a Press ENTER to enter the text box b Use the numeric keys to enter the known temperature c Press ENTE
79. ates flow measurements derived from the transmitted and digitized received signals Also the microcomputer continually checks for faults and allows the use of built in diagnostics for troubleshooting G INPUT OUTPUT The input output circuitry allows the flowmeter to indicate the measured flow with the 0 4 to 20 mA current loop and to output to a printer or other remote device 1 4 Features and Capabilities April 2009 Theory of Operation The TransPort is a transit time ultrasonic flowmeter When ultrasonic pulses are transmitted through a moving liquid or gas the pulses that travel in the same direction as the fluid flow downstream travel slightly faster than the pulses that travel against the flow upstream The TransPort uses various digital signal processing techniques including cross correlation to determine transit times and then uses the difference in transit times to calculate flow velocity During operation two transducers serve as both ultrasonic signal generators and receivers When mounted on a pipe they are in acoustic communication with each other so that each transducer can receive ultrasonic signals transmitted by the other transducer Each transducer thus functions as a transmitter generating a certain number of acoustic pulses and as a receiver for an identical number of pulses The flowmeter measures the time interval between transmission and reception of the ultrasonic signals in both directions When
80. below Site Manager Delete Confirmation Delete The Site A SIT Are You Sure Figure 5 10 The Delete Confirmation Window e Press F2 No to cancel the deletion and return to the Site Manager or e Press F3 Yes to delete the site The Site Manager appears with the highlighted site now deleted 5 10 Creating and Managing Sites April 2009 Creating a Site Message The Site Message option allows you to add an explanatory message with up to 30 characters or spaces for any given site To create a site message 1 Press MENU to enter the File Menu Then press the gt arrow key once to scroll from the File Menu to the Site Menu Press ENTER The screen appears similar to Figure 5 11 below Site Manager DEFAULT SIT bite ransfer as Text 09 04 04 14 51 10 5111 bytes 118272 bytes free Figure 5 11 The Site Menu in the Site Manager 2 Press ENTER to select Message which opens the text creation window shown in Figure 5 12 on the next page Creating and Managing Sites 5 11 April 2009 Creating a Site Message cont Figure 5 12 The Text Creation Window 3 Use the four arrow keys to scroll to the desired letter or symbol and press ENTER to add the letter to the message Note Pressing SEL causes the screen to alternate between a set of upper case capital letters a
81. below Skan Measure All Integrate Correlate Cycle Number 1 Cycle Width 8 Noise Level 20 X Measure Only X SNR Test Minimum Noise Level Low SNR Error Level Figure 4 13 The Count Window in the Skan Measure Option 1 The first prompt asks for the Cycle Number that triggers the count from 1 to 100 The default number is 1 a Press ENTER to enter the text box b Use the numeric keys to enter the recommended number c Press ENTER to confirm the entry 2 The meter now asks for the Cycle Width of cycle count samples minimum width of valid cycle a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm the entry 4 30 Programming Site Data April 2009 Entering Skan Measure Count Parameters cont 3 The next prompt asks for the percentage of Noise Level a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm the entry 4 If you wish to select or deselect Measure Times only instead of both Skan and Measure times press ENTER at the Measure Only prompt 5 If you wish to select or deselect a SNR signal to noise ratio test press the P key to highlight the SNR Test prompt and press ENTER a If you have selected SNR Test the next prompt asks for the Minimum Noise Level Pr
82. case the screen appears similar to Figure 5 7 below Save the current site DEFAULT SIT Figure 5 7 The Save Current Site Window Press F2 No to cancel saving the site or e Press F3 Yes to save the site The PT878GC remains in the current window Operate Mode or Site Manager with the current site saved Creating and Managing Sites 5 7 April 2009 Saving a Site with a Different Name If you want to save the current site with a different name open the Site Manager press MENU to open the File Menu scroll to the Save As option and press ENTER The screen appears similar to Figure 5 8 below Save Current Site Figure 5 8 The Save As Another Name Window 1 Use the four arrow keys to scroll to the desired letter or number and press ENTER 2 Repeat this procedure until you have created the desired site name with up to eight characters Press F1 Delete to remove any unwanted letters or numbers 3 When you have finished Press F2 Cancel to erase the entry or Press F3 OK to confirm the entry The Save Site window then appears Press F2 No to cancel saving the site or Press F3 Yes to save the site The PT878GC remains in Site Manager with the current site saved under both the old and new names 5 8 Creating and Managing Sites April 2009 Refreshing a Site You can refres
83. ccess this option in two ways by scrolling to the New Log option in the Logging Menu as shown in Figure 8 1 on page 8 2 and pressing ENTER or by scrolling to the New option in the File menu of the Log Manager as shown in Figure 8 3 on page 8 4 and pressing ENTER In either case the Create New Log screen appears similar to Figure 8 4 below Use the four arrow keys to scroll to the desired letter or number and press ENTER Repeat this procedure until you have created the desired log name with up to eight characters Press F1 Delete to remove any unwanted letters or numbers When you have finished press F3 OK to confirm the entry Create New Log E G M O U Ww 2 4 Figure 8 4 The New Log Window The PT878GC now asks for log formatting and measurements The screen appears similar to Figure 8 5 on the next page Logging Data 8 5 April 2009 Setting up a New Log cont Log Name 10SEC LOG Format Linear O Circular Type e Standard _ Error Start Date Time 2004 11 01 01 38 08 End Date Time 2004 11 01 09 38 08 Logging Interval 10 secs Figure 8 5 The General Log Format Window To step through each parameter press the V key 1 The first prompt asks you to choose between a linear or circular format for the log A linear log stops when it reaches a sp
84. ce Locale 7 9 Adjusting the Contrastes ara orae aar ccc ra E AEEA E ARARA 7 12 Setting Backlight Time out an a ccc cece eee 7 14 Changing Communications Parameters 000 0c eee 7 15 Resetting Forward and Reverse TotalS o 7 18 Setting Up User TOS cua cena eat ernie aaa es 7 19 Taking a Bitmap Capture of a Current Screen o 7 23 Chapter 8 Logging Data Entering the Logging MeNU o oooocococccococconoccn rca 8 2 Telogo Mangge S cats dls all EEEREN ENA 8 3 The File Meny a EAA aa 8 4 Setting up a New LOG 6 ccc erroreen 8 5 Copying Cloning a Selected Log 00 00 eee e eee 8 10 RENOMING 0 KOG 23208 3 c ernie y irritar ogee 8 11 Peeing Lota nad 8 11 Deleting All LOGS vico iia aa aa 8 12 Refreshing a LOG ri ehh Pee aN ee tien 8 12 Printing CLOG 5 5 325 area idis ds weet Shades 8 13 Transferring a Log to OPC ccc cence 8 13 The Log Menu 2 itene ada 204 50 8 14 Stopping Pausing a LOG ssaa eee cece 8 15 R starting a LOO evade a teenaged 8 15 EMCING CLOG tadas aula fe E eae Sel ae a lee alee 8 15 Pausing All LOGS 0 ccc ccc cece ence rro 8 16 Restarting All LOGS ee sen a aie tenet hs a ee 8 16 ENGING k YE a a ae Meech ack 8 16 View All Sites oc t2e ii A hk ee es 8 16 TAO VIEW MENU erena anio arias 8 17 Displaying Log Details 0 ccc cece cence ees 8 18 Displaying Log Data in Graphical ForM 8 19 Di
85. ce cece neces 5 14 Transferring a File from a PC to the PT878GC 5 15 Listing Files by Name ares sea e E AN neces 5 17 Listing Files in Chronological Order 5 17 Chapter 6 Displaying and Configuring Data Ain Ere KANES Eae a He wt Oa cae adams heal las aa Ut Coane pal ee 6 2 The View Option accede tae ta idas Cathe Ghar 6 4 The Limits Op at teta it ate 6 5 The Measurement Option ooooocoococcccococococoro co 6 7 Customizing the Display Screen 0 cece cnn ees 6 9 Specifying the Number of Displayed Parameters 6 10 CUSTOMIZING SOPLKCYS wie sive no saved ak nde ee een erat Ada Bade As 6 11 Managing Files The Drive Manager 0 0 0 cece eens 6 14 Refreshing OF ie arer a ewe eek hehe Ghia es 6 16 Transferring a File tO PC 6 cece ccc cnn eens 6 16 Transferring a File from a PC to the PT878GC 6 17 Peeing CE Il Cray nc att are arene it abe tt catalan ld 6 19 Listing Files by Name 20 ccc een nee ees 6 20 Listing Files in Chronological Order 6 20 Accessing Meter Data The About Option 0 6 21 Chapter 7 Programming Meter Settings Entering the Meter Menu ic a dee ie ess 7 2 Selecting Measurement Units 00 ccc ccc eee 7 3 The Battery CHOLQ minita a at ete cto ate 7 5 Entering Date and TIME 6 rr 7 7 April 2009 Table of Contents cont Changing Date and Time Appearan
86. cece eee eens 3 16 Installing the Pl Fixture and Transducers 0 0 0 cues 3 18 Surveying the Pipen fete etna dd Reds 3 18 nstalling the First Bracket with a Chain or Strap 3 21 nstalling the Second Bracket with a Chain or Strap 3 22 nstalling the Transducers 0 cece cece eee eee es 3 23 April 2009 Table of Contents cont Installing Dampening Material 00 c cece ees 3 25 Installing DMP 1 Dampening Material 3 26 Installing DMP 1 Dampening Material with Pl Fixture 3 29 Installing DMP 3 Compound with All Fixtures 3 31 Installing the PDJ Dampening Jacket 3 33 Chapter 4 Programming Site Data Entering the Program Menu eves raet eee EEEE EEEa 4 2 Entering Transducer Parameters 00 0 c cece cece renn 4 3 Parameters for Special Transducers 00 e eee 4 5 Entering Pipe Parameters y neia 0 00 cece cece een e teens 4 7 Entering Pipe Lining Parameters 00 0 e cece eee eee 4 11 Entering Fluid Types and Speeds 0 0 0 cece eee ees 4 13 Entering the Signal Path Parameters 0 cece eee ee 4 15 Path Parameters for Clamp On Transducers 4 16 Entering the Standard Volume Mass Flow Parameters 0 6 0 ccc cece cece eee teen eee ee 4 17 Entering Inputs in the Standard Volume Option 4 19 Entering Mass Flow Parameters 00 c
87. cers cont Note Jf the transducer is installed on a pipe that is at a different temperature than the ambient temperature the wedge temperature is the average of the pipe temperature and the ambient temperature 7 Finally the PT878GC requires the wedge sound speed a From the Wedge Temp prompt press the W key to reach the Wedge SS prompt and press ENTER b Use the numeric keys to enter the GE Sensing supplied wedge sound speed in ft sec or m sec and press ENTER Pressing the W key returns the meter to the Transducer tab at the top To confirm the entries and return to Operate Mode press F3 OK To leave the window without confirming the entries and return to Operate Mode press F2 Cancel or the ESC key 4 6 Programming Site Data April 2009 Entering Pipe Parameters To enter the Pipe option scroll to the Pipe entry on the Program Menu and press ENTER From the Transducer window you can scroll back up to the Transducer tab and press the arrow key to reach the Pipe window and press ENTER The screen appears similar to Figure 4 3 below To step through each parameter press the V key Refer to Figure A 4 on page A 4 of Appendix A Menu Maps Note Refer to the brochure Sound Speeds and Pipe Size Data 914 004 for additional information about pipe sizes and sound speeds Transducer Pipe BEY tiring Fig Path Material SndSpeed 600 3 m s OD mm OD x PI
88. ch letter or symbol you wish to add to the label The Table ID window can display up to 15 characters If you wish to delete a letter press F1 Delete to erase each letter or symbol from right to left on the label d When you have completed the label press F3 OK to confirm the label or F2 Cancel to leave the window without adding the label 7 20 Programming Meter Settings April 2009 Setting up User Tables cont 4 The final prompt asks you to enter or change data in the user table a Press ENTER to open the window The screen appears similar to Figure 7 10 below Edit User Table 1 UserTable1 Y 1 2 Figure 7 10 The Edit User Table Window b Use the four arrow keys to move to the desired entry in the table c Press ENTER Then use the numeric keys to enter the desired data which appears in the right corner of the window above the table d Press ENTER to confirm the data which then appears in the appropriate slot in the table Programming Meter Settings 7 21 April 2009 Setting up User Tables cont e Repeat steps b c and d on page 7 21 until you have completed entering data for the table f When you have finished press F3 OK to confirm the entries or F2 Cancel to leave the window without confirming the table The program returns to the Edit Tables window e To confirm the entries and return to Operate mode press
89. city Lil aiii a a et 9 33 View All Sites Option 0 0 0 cece eee eens 8 16 View Menu IN EOGIMGNAGCK rasos daba as 8 17 View Opi sitiada ina ad reed 6 4 14 April 2009 Index cont W Watchdog Test is als a MS a 9 38 Wave Sample icctnn aa 9 40 Wave Snapshot Option 00 cece cece eee eens 9 40 Wedge Angle Entering 0 cece eee e eee eee eee 4 5 Wedge Sound Speed Entering 2 0 0 cece eee o 4 6 Wedge Temperature Entering 0 0 0 eee o 4 5 Windows Operating Systems Compatibility with IR 2 eee eee eee B 1 Z Zero Base Value for Analog OUtPUT sue at ld ia ado 4 41 Zero Cutont E Se e EE 9 26 15 GE Sansir DECLARATION ng OF CONFORMITY We Panametrics Limited Shannon Industrial Estate Shannon County Clare Ireland declare under our sole responsibility that the TransPort PT878 Portable Ultrasonic Flowmeter TransPort PT878GC Clamp On Portable Ultrasonic Flowmeter to which this declaration relates are in conformity with the following standards e EN 61326 1998 Class A Annex C Continuous Unmonitored Operation following the provisions of the 89 336 EEC EMC Directive The units listed above and any transducers supplied with them spoolpieces are addressed under a separate declaration of conformity do not bear CE marking for the Pressure Equipment Directive as they are supplied in accordance with Article 3 Section 3 sound engineering practices and co
90. ckness gauge 7 kness Gauge in Operation Figure 9 4 PT878GC Thic The PT878GC offers two basic thickness gauge functions using the gauge to measure thickness after entering the pipe material and calibrating the gauge For the highest possible accuracy you can also calibrate the velocity of sound in the pipe material Using the thickness gauge involves three steps 1 Entering the material and sound speed in the Material window on page 9 7 2 Measuring the pipe wall thickness in the Display window on page 9 9 and 3 Ifthe measurement seems unreasonable examining the acoustic signal to diagnose the problem in the Graph window on page 9 10 Servicing the PT878GC 9 5 April 2009 Setting up the Thickness Gauge cont Calibrating the thickness gauge involves up to two additional steps 4 Calibrating the thickness gauge itself in the Zero window on page 9 12 and 5 Calibrating the velocity of sound in the pipe material in the Velocity window on page 9 14 if possible and if the pipe material is not the material entered in the Zero window This step requires a trustworthy reference either a section of pipe such as a flange or open pipe section that can be measured with calipers or another measurement device or a thickness calibration block of the same material 9 6 Servicing the PT878GC April 2009 Measuring Pipe Wall Thickness Entering the Material and Sound Speed IMPORTANT GE Sensi
91. ckness measurements of reasonable accuracy However for greater accuracy calibrate pipe material sound velocity IMPORTANT This step is necessary only if the actual pipe material sound speed differs from the sound speed of the material used in the calibration block It is possible only if you have a sample of pipe material with the thickness known to a high level of precision To open the Velocity window press the lt or P gt arrow key until you reach the Velocity tab and press ENTER The screen appears similar to Figure 9 10 below Thickness Gauge Measure Display Graph Zero Material Block Length 0 Determine the Sound Speed Calculated Current Figure 9 10 The Sound Speed Window 1 Scroll to the Velocity tab as shown in Figure 9 10 above Press ENTER 9 14 Servicing the PT878GC April 2009 Calculating Velocity Pipe Material Sound Speed cont 2 To enter the block length here the thickness of the sample as measured with a caliper or calibrated sample press the V arrow key and then press ENTER to open the Block Length text box Use the numeric keys to enter the measured block length Press ENTER to confirm the entry Prepare the sample for calibration by applying couplant B to its surface and press ENTER The screen now appears similar to Figure 9 11 below Hold the transducer steady against the sample and wait
92. confirm the symbol or F2 Cancel to leave the window without adding the symbol 4 The next prompt asks you to select the number of decimal places a Press ENTER to open the drop down menu b Scroll to the desired number of decimal places ranging from 0 to 4 c Press ENTER to confirm the entry 5 The final prompt asks for the function itself a Press ENTER to open the function creation window which appears similar to Figure 4 23 on the next page b Use the four arrow keys to scroll to the desired function or table and press ENTER to confirm each entry Use the numeric keys to enter numeric values Press F1 Delete to remove any mistaken or unwanted symbols or numbers Note Pressing SEL causes the screen to alternate between a set of symbols and functions and a list of user functions Use both screens to create the desired function 4 48 Programming Site Data April 2009 Entering User Functions cont E abs exp sqrt MODE cos tan asin acos atan tblA tbIB tbIC tbID tblE tbIF Figure 4 23 The Function Creation Window c To enter a particular measured parameter into the equation click on the MODE symbol in the middle of the third row The Select Measurement window shown in Figure 4 19 on page 4 40 opens Select the desired data source and unit as discussed on page 4 40 and press F3 OK to confirm the entry d When you
93. corroded or shorted if contaminants enter the transducer housing 4 PHYSICAL DAMAGE Transducers may be physically damaged by dropping them onto a hard surface or striking them against another object The transducer connector is the most fragile part and is the one most subject to damage Minor damage may be repaired by carefully bending the connector back into shape If the connector cannot be repaired the transducers must be replaced Note Transducers must be replaced in pairs Refer to Chapter 4 Programming Site Data to program the replacement transducer data into the meter Contact GE Sensing if you cannot solve a transducer related problem Diagnostics and Troubleshooting 10 11 April 2009 Chapter 11 Specifications This section contains specifications for the following e Operations and Performance e Electronics e Clamp on Transducers e Thickness Gauge Option Additional Options Specifications 11 1 April 2009 Operation and Performance Fluid Types Acoustically conductive gases with minimum density requirements See Table 3 1 on page 3 5 Table 3 2 on page 3 7 and Table 3 3 on page 3 9 Pipe Sizes 0 75 to 12 in 20 to 300 mm with PT878GC 01 electronics 4 to 24 in 100 to 610 mm with PT878GC 02 electronics Pipe Wall Thickness See Table 3 1 on page 3 5 Table 3 2 on page 3 7 and Table 3 3 on page 3 9 Pipe Materials All unlined metals and plastics no lined pipes Clamp On Flow Accuracy
94. de edges of the brackets onto the pipe These lines indicate where to apply the material One 9 5 in roll fits between the brackets Remove the fixture and transducers Use a dry towel or rag and thoroughly dry the pipe Unroll the DMP 1 material and cut off a length equal to the circumference Peel the paper backing off the cut portion IMPORTANT The DMP 1I material will only adhere to the pipe 5 correctly if the pipe is completely dry To adhere properly the material must also be at a temperature above 50 F 10 C Before more atmospheric condensation can occur on the outside of the pipe roll the DMP 1 dampening material once around the pipe following the scribe marks that represent the inside edge of the fixture as shown in Figure 3 23 below Figure 3 23 DMP 1 Dampening Material Wrapped Around Pipe 6 Reinstall the fixture and make sure the spacing is set correctly Loosely mount the transducers on top of the dampening material using the correct spacing 3 26 Installing the Dampening Material Transducers and Fixtures April 2009 Installing DMP 1 Dampening Material with CFG V Series Fixtures cont 7 With a marker trace around the transducer footprint as shown in Figure 3 24 below Figure 3 24 DMP 1 Material with Transducer Footprint Traced 8 Remove the fixture and transducers Then use a utility knife to cut out the area under the transducer footprint and peel the cut material o
95. des of good workmanship of the Pressure Equipment Directive 97 23 EC for DN lt 25 Shannon June 1 2002 ws Et Mr James Gibson GENERAL MANAGER nsal CE lt gt fim LS EN ISO 9002 TUV ESSEN Shannon ISO 9001 US CERT DOC H5 August 2004 GE Sangin DECLARATION mg DE CONFORMITE Nous Panametrics Limited Shannon Industrial Estate Shannon County Clare Ireland d clarons sous notre propre responsabilit que les TransPort PT878 Portable Ultrasonic Flowmeter TransPort PT878GC Clamp On Portable Ultrasonic Flowmeter r latif cette d claration sont en conformit avec les documents suivants e EN 61326 1998 Class A Annex C Continuous Unmonitored Operation suivant les r gles de la Directive de Compatibilit Electromagn tique 89 336 EEC Les mat riels list s ci dessus ainsi que les transducteurs pouvant tre livr s avec les manchettes faisant l objet d une d claration de conformit s par e ne portent pas le marquage CE de la directive des quipements sous pression car ils sont fournis en accord avec la directive 97 23 EC des quipements sous pression pour les DN lt 25 Article 3 section 3 qui concerne les pratiques et les codes de bonne fabrication pour l ing nierie du son Shannon June 1 2002 yee Et i Mr James Gibson DIRECTEUR GENERAL NSAI LS ENISO9002 TUV ESSEN Shannon ISO 9001 US CERT DOC H5 August 2004 GE Sensing KONFORMITATS ERKLARUNG
96. e 225 mm 9 in if you are using a junction box In general transducers are installed 180 apart on opposite sides of the pipe and in a horizontal plane at 3 and 9 o clock Figure 3 3 below illustrates the desired acoustic signal projection path for general installation however additional pipe surveys may provide data that can lead to modifications for optimal installation Transducer Transducer End View Figure 3 3 Desired Projection of Acoustical Signal Path 3 10 Installing the Dampening Material Transducers and Fixtures April 2009 Performing a Pipe Survey Finding a location where the pipe is concentric is important for optimum accuracy and performance If possible perform a pipe survey with an ultrasonic thickness gauge to find the best location 2 Clear rust or loose paint and measure the wall thickness at five points along the pipe axis at 25 mm 1 in intervals using an ultrasonic thickness gauge as shown in Figure 3 4 below Check each point three times and record the mean values If the maximum variation between the five points exceeds 0 25 mm 0 010 in find another location esa 1 25mm 1 25mm a Figure 3 4 Measuring Thickness Along the Pipe Axis 3 Measure the outside diameter OD of the pipe using a tape measure or the supplied layout wrap Using the entire layout tape mark two circumferential lines along the edges of the wrap as shown in Figure 3 5 below uring and M
97. e 4 19 on page 4 40 appears Programming Site Data 4 51 April 2009 Entering Reynolds Correction cont b Enter the desired measurement and units as described on page 4 40 c Press F3 OK to confirm your selection 4 The prompt then asks if you wish to edit the Reynolds Correction table a Press ENTER to open the table which appears similar to Figure 4 25 below Edit Reynolds Table Data Source Figure 4 25 Window for Reynolds Correction Table b Use the numeric keys to enter the first value for the data source and press ENTER to confirm the entry c Press the P key to move to the Reynolds value column Use the numeric keys to enter the corresponding value and press ENTER to confirm the entry d Repeat steps b and c for the remainder of the table 4 52 Programming Site Data April 2009 Entering Reynolds Correction cont e When you have completed entering values press F3 OK to confirm the table and return to the Correction Factors window You have completed entering data for a Reynolds Correction table To confirm the entries press F3 OK The meter returns to Operate Mode To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Entering a Calibration Factor The Calibration Factor is used as a reference for the flowmeter electronics to ensure accurate readings To ente
98. e DMP 1 self adhesive sheet for applications up to 150 F 66 C The material comes as two 9 5 in 24 cm wide sheets cut in sufficient length to cover the pipe circumference plus an additional tenth of a circumference The material can be cut with a utility knife and comes with a paper backing that is removed before installation The DMP23 is a clay like compound for all temperature applications If the temperature is over 150 F the PDJ pipe dampening jacket available from GE Sensing with preapplied DMP 3 must be used with the material Ata minimum you should consider applying dampening material if you have any of the following conditions The distance from the nearest butt weld or pipe flange is less than 10 ft 3 m The pipe size is under 4 in 100 mm diameter and the gas pressure is 200 psig 14 barg or lower The pipe is deformed The pipe is old with a history of scaling or rust The pipe experiences condensation on the outside Note Consult a GE Sensing flowmeter applications engineer or sales engineer if you have any questions regarding dampening material Installing the Dampening Material Transducers and Fixtures 3 25 April 2009 Installing DMP 1 Dampening Material 1 Be sure the CFG V clamping fixture is installed on the pipe with the transducers as described in the section Jnstalling the V Series Clamping Fixture and Transducers on page 3 14 With a marker mark scribe lines on the insi
99. e PT878GC April 2009 The Test Option Within the Service Menu the Test option includes seven tests to ensure that the PT878GC is performing properly Test Screen Test Keys Watchdog Test Impulse Response Wave Snapshot Simulate and Battery Test To enter this option scroll to the Test entry on the Service Menu and press ENTER The screen appears similar to Figure 9 20 below Site Program Meter Logging RAMO Velocity ft s Reports Calibrate Diagnostics ma Signal Setup Error Limits Delta T ns Test Screen Test Keys Watchdog Test Impulse Response 0 10 Wave Snapshot q Simulate E0 No Errors Battery Test AAA AE Figure 9 20 The Test Option in the Service Menu Scroll to the desired entry in the option menu and press ENTER Servicing the PT878GC 9 35 April 2009 Testing the Screen To test the proper functioning of the PT878GC screen scroll to the Test Screen option in the Test Menu and press ENTER The screen then shows the message Press Any Key To Continue Once you press a key a screen with a checkerboard pattern appears as shown in Figure 9 21 below Press Any Key To Continue Figure 9 21 A Functioning Test Screen Pressing a key two more times should result in two more checkerboard patterns followed by a series of dark and light screens Pressing the key through this sequence should return the PT878GC to Operate Mode If the test does not proceed according to this sequ
100. e data from the PT878GC IR beam 1 Check that the Communications option see page 7 15 has been set to the IrDA protocol Note For Windows NT 4 0 check that the QuickBeam software available through the path C Program Files QuickBeam Suite is running and that the IR beam on the PT878GC has clear access to the IR sensor connected to the PC port 2 Highlight the desired site in the left window of the Site Manager 3 Press MENU to open the File Menu press the gt arrow key once scroll to the Transfer as Text option and press ENTER The PT878GC transfers the file as discussed on the previous page however the file has a txt extension and it cannot be sent back to the PT878GC in this format 5 14 Creating and Managing Sites April 2009 Transferring a File from a PC to the PT878GC Once you have stored site or meter files to a PC you can then transfer them back to the PT878GC over the IR interface The PT878GC only accepts files with a sit site or met meter extension If you rename another type of file with one of these extensions and transfer it it will be transferred but will not function if you open it Also if you are transferring a file and the meter already has a file with the identical name the meter will overwrite its current file with the transferred file If the transferred file has a name longer than eight characters the meter will shorten the name to eight characters and replace any spaces in
101. e this distance along the circumferential lines from the zero point as shown in Figure 3 15 below Place marks on both sides of the circumferential lines made with the layout tape and connect the marks Marking the 3 o Clock Position Figure 3 15 Marking the 9 o Clock Position Make sure to take the 180 point measurement from both over the top of the pipe and under the bottom of the pipe on a horizontal pipe to ensure reciprocity of the installation Figure 3 16 on the next page shows the appropriate way to measure the 180 point Installing the Dampening Material Transducers and Fixtures 3 19 April 2009 Surveying the Pipe cont 180 deg and C 2 Figure 3 16 Measuring the 180 Point from Top and Bottom 3 20 Installing the Dampening Material Transducers and Fixtures April 2009 Installing the First Bracket with a Chain or Strap The following steps describe how to install the PI fixture with a supplied chain or strap 1 Carefully wrap the chain or strap around the pipe taking care not to twist it 2 Loosen the wing nuts up to the end of the J hooks Then hook the chain into the tightest links and loosely hand tighten the wing nuts If you are using a strap insert the J hook into the smaller round hole on the strap 3 Line up one edge of the CFG PI holder bracket with the origin scribe line and fully tighten the chain or strap see Figures 3 17 and 3 18 below Origin Scribe Line Fr
102. eability Overall 0 cece cece eee eee 11 2 Pressure Requirements Air Nitrogen Oxygen Argon 11 3 Pressure Requirements Natural Gas oo oo o o 11 3 Pressure Requirements Steam 0 0 00 cece eee eee 11 3 Pressure Requirements Other Gases 0 0005 11 3 Measurement Parameters 0 cece a eens 11 3 EE A clit tet de Mame util eee enon o holes 11 4 Flow Measurement 0 00 e cece cece nent n ens 11 4 ENGIOSURES i sins stones lead A Blase Banya 11 4 DIPTICRISIONS ers tect ee atceedinte e e cage 11 4 DISPO 11 4 Ee e uertsead andes Sums SA E Re eis sey aters 11 4 intemal BATEA erener perire acne ah samen ivan diles aes oer 11 4 Battery Charger input escons uena TEE E E LETARGIA 11 4 MEMOTV E n e E ah A E a E ETE E ETEA 11 4 Operating Temperature 0 ccc riore 11 4 Storage Temperature cee cece cence een ro 11 4 Standard Inputs Outputs 00 c cece eee eee eee 11 5 Digital Interact Sits Be oe oo Pes heed oe EE 11 5 Site Parameter Programming 6 0e cece eens 11 5 DAta iD Mid pare tee i 11 5 DISPIGW EURCtIOMS ae ae ay cue dad als a cae dy aw Sylow beds 11 5 European Compliance 0 cece cece enn eens 11 5 April 2009 Table of Contents cont Clamp On Ultrasonic Flow Transducers 000 cee ee 11 6 Temperature Rangels 00 cece eee e eens 11 6 Transducer Materials arenero nddas a dde 11 6 Fure
103. eadsheet form be sure the log is highlighted in the left window of the Log Manager Then scroll to the View menu and press ENTER Scroll to the Spreadsheet option and press ENTER The screen now appears similar to Figure 8 15 below Time 03 20 2004 e ro 14 24 46 14 24 56 290 14 25 06 291 14 25 17 293 14 25 27 295 14 25 37 294 14 25 47 293 Figure 8 15 The Log Spreadsheet Window Use the lt 4 and P keys to scroll to other columns or the V or A keys to scroll backward or forward in time To alter the times displayed press F1 Time The Enter Time window shown on the previous page opens Follow the instructions on the previous page to change the date or time e To refresh the display press F2 Refresh The display shows the most current data e Press F3 Exit to return to the Log Manager 8 22 Logging Data April 2009 The Sort Menu The Sort Menu within the Log Manager allows you to arrange your log list either alphabetically By Name or chronologically By Date Log Manager File Log View Ri swore 04 13 13 41 E 03 01 04 13 23 41 Interval 10 Seconds Records 51 03 01 04 13 23 21 1216 bytes 109568 bytes free Figure 8 16 Sort Menu in the Log Manager Listing Logs by Name If you want to list your logs alphabetically by log name within the Log Manager press MENU to open the File Menu Then scroll from t
104. ears similar to Figure 9 1 below When programming refer to Figure A 10 on page A 10 of Appendix A Menu Maps Site Program Meter Logging Service Velocity ft s Reports T Gauge Display T Gauge Setup Diagnostics 0 00 E Calibrate Signal Setup Delta T ns Error Limits Test gt Factory Defaults Flash t 0 10 ash Update E0 No Errors Figure 9 1 The Service Menu To scroll to a particular option press the V or A arrow keys until you reach the option Then press ENTER to open the option window When entering parameters in an option press e The V key to step through the available parameters e The A key to scroll back to a previously entered parameter The F2 key Cancel or the ESC key to exit an option at any time and return to Operate Mode without changing the parameters 9 2 Servicing the PT878GC April 2009 Printing Reports When used with an IR compatible printer the PT878GC can print out a variety of data current site logs drive contents and user functions tables and settings in the Reports option To enter the Reports option scroll to the Reports entry on the Service Menu and press ENTER The screen appears similar to Figure 9 2 below Reports Drive Contents Current Site Global Settings User Functions User Tables All User Settings Menu Commands All Reports Figure 9 2 The Reports Window Press ENTER to open
105. ece eee 4 22 Entering Skan Measure Parameters 000cce cece ees 4 24 Entering Skan Measure Integrate Parameters 4 28 Entering Skan Measure Count Parameters 4 30 Entering Skan Correlation Parameters 4 32 Entering ANGIOG IAPUtS nere prre clase SREE ile sae eal 4 34 Entering General Purpose Analog Inputs 4 34 Entering Analog Inputs in Standard Volume or Mass Flow Option 00 0 cece cee cece EE AN 4 37 Entering the Analog Output sper seita rerai t cece eens 4 39 Entering the Digital OUt yeaa ccc eee eee 4 42 Entering User Functions 0 00 c cece cence ene ees 4 46 Entering Correction FACtOTS 0 cece neces 4 50 Entering Reynolds Correction 0 0 0 c cece eee es 4 50 Entering a Calibration Factor 0 c cece eee ees 4 53 vi April 2009 Table of Contents cont Chapter 5 Creating and Managing Sites The Site Manda eee Uist eae 5 2 Creating a New Site 20 cece cence 5 4 Opening an Existing Site siyeni a cece eee eens 5 6 A A ge ented 5 7 Saving a Site with a Different Name ceca 5 8 Refreshing d Site iia arica ae eo tees oe A bas 5 9 RENCIA MO caco ai ta 5 9 Deleg Seasons densas dure eae 5 10 Creating a Site Message 6 ccc cee 5 11 PRINTING a Fie ta Se Sein ew agendas tase 5 13 Transferring a Site File to a PC 6 cece cee eee 5 13 Transferring a File aS Text 0 ce
106. ecified end time or the PT878GC runs out of memory while a circular log runs continuously until manually stopped a Use the lt 4 and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection 2 The next prompt asks you to choose whether the log is to be a standard log recording specified data or an error log one which records error conditions a Use the lt d and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection 8 6 Logging Data April 2009 Setting up a New Log cont 3 The next prompt asks for the starting date and time a c Press ENTER to enter the text box The meter highlights the first number Use the 4 and P keys to scroll to any number you wish to change or the P key to scroll to the time box Two alternatives are available to change a highlighted number Use the numeric keys to enter the desired number Use the V or A arrow keys to scroll in 1 digit increments to the desired number For example if the text box displays 09 pressing the W key twice changes the number to 07 You can scroll from 01 to 12 for the month and from 01 to 31 for the day depending on the number you have selected for the month In either case press ENTER to confirm the entry 4 Follow the same procedure to enter the end date and time 5 The final prompt in this window asks for the logging interval
107. ected values into the TransPort memory e SEL enables you to move between data measurements on the screen ESC enables you to exit menus or menu options at any time cancels numeric entry Red key fo turns the power on or off and toggles the backlight ou or off 2 12 Initial Setup April 2009 Keypad cont Doo DOODO a DOO NIV OOO Figure 2 7 The TransPort PT878GC Keypad Initial Setup 2 13 April 2009 Obtaining On Line Help The TransPort offers on line help screens that describe various features You can access on line help at any time by pressing the key The screen appears similar to Figure 2 8 below Table of Contents Use the arrows and the enter key to select from the links below Press F2 to return to the TOC Site Menu Program Menu Meter Menu Log Menu Service Menu Miscellaneous About Figure 2 8 The Main Help Menu Use the three function keys and the A and V arrow keys to navigate to the desired menu and press ENTER Repeat this procedure to access the desired topic within the menu When you have finished using the Help menu e Press F1 Back to move back one level e Press F2 TOC to return to the Table of Contents e Press F3 Close to return to the previous screen 2 14 Initial Setup April 2009 Chapte
108. eive cycle In other words they act like loudspeakers when transmitting the signal and microphones when receiving it In the TransPort system each transducer acts as both a receiver and transmitter since a series of ultrasonic pulses are alternately sent upstream and then downstream through the flowcell Features and Capabilities 1 3 April 2009 Electronics Package The TransPort consists of circuits that generate receive and measure the travel time of the ultrasonic pulses It also contains a microcomputer that controls operation and calculates flow measurement parameters Specific circuits function as follows A TRANSMIT SIGNAL GENERATOR The transmit signal generator under control of the microcomputer and timing circuit synthesizes the signal that drives the transmitter B TRANSMITTER The transmitter amplifies the signals from the transmit signal generator to a signal that drives the transmit transducer C RECEIVER The receiver amplifies the received signals to a level suitable for the data acquisition circuitry D DATA ACQUISITION The data acquisition circuitry digitizes the received signal and stores it in a buffer for processing by the microcomputer E TIMING CIRCUIT The timing circuit generates the transmitter frequency receive window controls the data acquisition circuit and the direction of the transmission F MICROCOMPUTER The microcomputer controls the TransPort flowmeter s operation and calcul
109. ement Make sure you keep the NiCad batteries charged until you are ready to ship the unit back to the factory Before shipping print out all the log and site data or transfer it to your PC as this data will be lost during the service procedure Initial Setup 2 7 April 2009 Powering On and Off cont After the meter conducts all the self checks the screen then appears similar to the one shown in Figure 2 4 below ABC SIT 2004 11 30 09 53 AM Velocity ft s Signal dB 32 0 00 A 0 10 0 0 E0 No Errors Figure 2 4 Screen After Powering On 2 8 Initial Setup April 2009 Powering On and Off cont To turn the PT878GC off press the red key for 3 seconds The screen now appears similar to Figure 2 5 below SHUTDOWN Meter OFF SLEEP Meter Idle CANCEL Resume Operations Shutdown Figure 2 5 The Shutdown Menu Three options are available e Press F1 to shut down the PT878GC turning it completely off Press F2 to send the PT878GC into sleep mode In this mode some of the power supplies shut down but the PT878GC remains in a standby mode Users can resume taking measurements immediately by pressing the power button e Press F3 to cancel the command and return the PT878GC to normal operation If the PT878GC locks up you can reset it by holding the power key the red key in the upper right corner for 15 seconds Initial Setup 2 9 April 2009 U
110. en the View menu from the Log Manager press MENU Scroll to the View menu and press ENTER The screen appears similar to Figure 8 10 below Log Manager Details o AAA LOG ate Finished Spreadsheet 03 01 04 13 13 41 E 03 01 04 13 23 41 Interval 10 Seconds Records 51 03 01 04 13 23 21 1216 bytes 109568 bytes free Figure 8 10 The View Menu Logging Data 8 17 April 2009 Displaying Log Details To view details of a given log be sure the log is highlighted in the left window of the Log Manager Then scroll to the View menu and press ENTER Scroll to the Details option and press ENTER The screen now appears similar to Figure 8 11 below Log Info State Finished S 03 01 04 13 13 41 E 03 01 04 13 23 41 Interval 10 Seconds Records 51 Precision 8 Error No Basic Velocity Meters sec Figure 8 11 The Log Details Display Window with List of Measurements in the Log Press F3 OK to return to the Log Manager 8 18 Logging Data April 2009 Displaying Log Data in Graphical Form To view a log in graphical form be sure the log is highlighted in the left window of the Log Manager 1 Scroll to the View menu and press ENTER 2 Scroll to the Graph option and press ENTER 3 The Select Measurement window appears with the logged measurements Be sure you have highlighted the desired measurement and press F3 View The screen now appears similar to Figure
111. ence please consult GE Sensing 9 36 Servicing the PT878GC April 2009 Testing the Keys The Test Keys option checks the functioning of the various keys on the keypad To start the test scroll to the Test Keys option on the Test Menu and press ENTER The screen appears similar to Figure 9 22 below Press any key on the keypad and a window representing that key should darken Figure 9 22 The Test Keys Window Pressing the F3 key returns the meter to the Operate Mode If any key does not appear on the screen or does not darken when pressed contact GE Sensing Note The power key does not appear in this test Servicing the PT878GC 9 37 April 2009 Testing the Watchdog Timer Circuit The PT878GC includes a watchdog timer circuit If a software error causes the meter to stop responding this circuit automatically resets the meter A properly functioning PT878GC restarts if you run the Watchdog Test To start the Watchdog Test scroll to the Watchdog Test option in the Test Menu and press ENTER The screen appears similar to Figure 9 23 below Site Program Meter Logging RAME Watchdog Test El WARNING This test should automatically restart your meter Press Yes to start the test Press No to cancel the test Figure 9 23 The Watchdog Test Screen Press F2 No to cancel the test and return to the Menu screen or press F3 Yes to start the test The PT878GC should go blan
112. er of choices If you select Pulse Totalizer the meter offers four sources Forward Totalizer Reverse Totalizer Standard Forward Totalizer Standard Reverse Totalizer If you select Frequency the sources also include Pressure Diagnostics Velocity Temperature Volume User Function Skan Measure Mass Flow Press ENTER to open the data source selection window shown in Figure 4 19 on page 4 40 Scroll to the desired source Press SEL to confirm your selection Programming Site Data 4 43 April 2009 Entering the Digital Output cont d The prompt then moves to a list of unit types The available units depend on the selection made at the Data Source prompt Scroll to the desired output unit e Press F3 OK to confirm your selection 3 The last set of parameters that appears depends on the selection you made at the Function prompt If you selected Pulse Totalizer The prompt asks for the units pulse the pulse width in microseconds and the polarity Figure 4 20 on page 4 42 illustrates a Digital Output window configured for the Pulse Totalizer function For the Units Pulse and Pulse Width parameters a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your selection For Polarity a Press ENTER to open the drop down menu b Scroll to the desired polarity either Low High or High Low c Press EN
113. er the node ID c Press ENTER to confirm the entry Programming Meter Settings 7 15 April 2009 Changing Communications Settings cont 3 The next prompt asks you to select the communications interface from two options IrDA Infrared Data Association and the IR232 virtual interface You must use IrDA when using an IR printer or transfer application such as QuickBeam Use the lt d and P keys to scroll to the desired selection and press ENTER Note For more information on loading software updates via the infrared interface see Chapter 9 Servicing the PT878GC page 9 43 If you have selected IrDA you have completed entering data in this window However if you have selected IR232 the PT878GC asks for four more parameters IMPORTANT Using R232 requires the following parameters Baud Rate 9600 Parity None eStop Bits 1 Data Bits 8 4 The program now asks for the baud rate The default rate is 9 600 bps a Press ENTER to open the drop down menu b Usethe W or A arrow keys to scroll to the desired rate from 300 to 115 2K bps c Press ENTER to confirm the entry 5 The next prompt asks for the parity from five options None Mark Space Even or Odd The default parity is None a Press ENTER to open the drop down menu b Usethe W or A arrow keys to scroll to the desired parity c Press ENTER to confirm the entry 7 16 Programming Meter Settings April 2009 Changi
114. ers for the Diameter alternative as discussed on the previous page Note Ifyou have selected English units in the Meter Menu as discussed on page 7 3 the schedules appear as ANSI b Press the lt 4 key twice to move the prompt to the Nominal pipe size drop down menu Press ENTER to open the menu Scroll to the desired pipe size and press ENTER to confirm your choice c Press the P key to move the prompt to the Schedule drop down menu Press ENTER to open the menu Scroll to the desired schedule 5S 10S 40S or 80S and press ENTER to confirm the choice After entering either diameter or schedule settings pressing the A key returns the meter to the Pipe Material prompt To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key To return to the Pipe tab and scroll to other windows press the A key 4 10 Programming Site Data April 2009 Entering Pipe Lining Parameters To enter the Lining option scroll to the Lining entry on the Program Menu and press ENTER From the Pipe window you can scroll back up to the Pipe tab and press the arrow key to reach the Lining window and press ENTER The screen appears similar to Figure 4 4 below To step through each parameter press the W key While programming refer to Figure A 3 on page A 3 of Appendix A Menu Ma
115. es Error Message Problem Possible Cause Action EO No error Displays briefly after the dis play of another error message None required Mea surement is valid Low Signal Poor ultra sonic signal strength Broken cable Flowcell prob lem Trans ducer problem Electronic fail ure Check transducer cable See Flowcell Problems on page 10 9 and Transducer Problems on page 10 11 Check program ming and transducer spacing Contact the factory if problem persists Sound Speed Error Sound speed is pro grammed using the Pro gram Menu Pipe option as described in Chapter 4 Diagnostics and Troubleshooting Poor flow con ditions Incorrect pro gramming Bad transducer spac ing Measure ment is very different from the pro grammed sound speed Check sound speed against nominal sound speed See Flowcell Problems on page 10 9 and Transducer Problems on page 10 11 Check program ming and transducer spacing 10 3 April 2009 Table 10 1 Error Messages cont Error Possible Message Problem Cause Action E3 Velocity Programming Make sure the maxi Range error poor flow mum velocity range Velocity conditions or is within the range exceeds pro bad transducer listed in Table 3 1 on grammed spacing page 3 4 for the pipe limits size and pressure Velocity Check programming limit is pro and transducer spac grammed ing If progra
116. ess ENTER type in the recommended value and press ENTER to confirm the entry b The final prompt asks for the Low SNR Error Limit The default is 7 Press ENTER type in the recommended value and press ENTER to confirm the entry Pressing the V key returns the meter to the Cycle Number entry and pressing the A key returns the meter to the Count tab To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Site Data 4 31 April 2009 Entering Skan Correlation Parameters To open the Skan Correlation window in the Skan Measure option press the P arrow key three times from the All tab to reach the Correlate tab and press ENTER The screen appears similar to Figure 4 14 below All Integrate Count Mel Min Threshold 100 Max Threshold 100 Percent Peak 401 Measure Only Figure 4 14 The Correlate Window in the Skan Measure Option To identify the peak of the received signal the PT878GC uses the Threshold method in which the peak is identified as the point where the signal crosses a threshold that is a percentage of the maximum signal detected 1 The first prompt Min Threshold asks for the minimum percentage of peak used to measure transit time a Press ENTER to enter the text b
117. eturn to the PC Hyperterminal program 9 48 Servicing the PT878GC April 2009 Installing New Software cont 1 In the Hyperterminal window pull down the Transfer menu and click Send File A window opens similar to Figure 9 32 below i Send File Folder CATEMP Filename C TEMP INSTOO1_E cod F Protocol modem X Send Close Cancel Figure 9 32 The Send File Window in the Transfer Menu 2 Click on the replacement software designated by a cod extension from the folder where it has been stored 3 From the Protocol drop down menu select Xmodem 4 Click Send For a successful transfer the PC window appears similar to Figure 9 33 below while the PT878GC screen displays the program ID size load address and a count of blocks being loaded Xmodem file send for PT878 IDA Sending EXTEMPUNSTOO1_E cod Packet 3594 Error checking ere Retries lo Total retries fo Last error File CCC 449k of 1412K Elapsed 00 06 51 Remaining 00 14 41 Throughput DE bps Cancel cps bps Figure 9 33 The File Transmission Window Servicing the PT878GC 9 49 April 2009 Chapter 10 Diagnostics and Troubleshooting The TransPort PT878GC is a reliable instrument that is easy to maintain It will provide accurate flow measurement readings as long as it is operated as described in this manual If problems do arise with the electronics transducers or the flowcell the TransPort displays an err
118. ew one parameter appears If you press 2 Views two parameters appear one on the top and one on the bottom The view for 3 Views adds a window in the lower right and that for 4 Views sends the second parameter to the upper right corner with the third parameter in the lower left and the fourth parameter in the lower right 6 10 Displaying and Configuring Data April 2009 Customizing Softkeys When the screen is in Operate mode you might wish to access a particular submenu frequently without the trouble of scrolling through menus Customizing the softkeys the function keys F1 F2 and F3 allows you to access up to three submenus by pressing the associated softkey You can customize a softkey from the Site Menu or from within a particular menu To customize a softkey from the Site Menu 1 Press MENU 2 From the Site Menu shown in Figure 6 6 on page 6 9 use the V or A arrow keys to move to the FKeys entry on the menu Press ENTER The screen now appears similar to Figure 6 8 below SiN Program Meter Logging Service Manager Signal dB Save Now 1 View 32 2 Views I 3 Views 4 Views Drive Manager Volume l s About 0 0 Clear F1 E0 No Errors Clear F2 Clear F3 Figure 6 8 The FKeys Menu 3 Use the V or A arrow keys to move to the desired FKey 1 2 or 3 entry on the menu Press ENTER The Configure FKey window opens as show
119. f the transmit window Normally the PT878GC calculates the size of both transmit and receive windows based on pipe size and fluid sound speed However for special diagnostic purposes it may sometimes be necessary to reset the window size The default value is 1 and values from 0 to 1 000 are acceptable The next prompt enables you to reset the size of the receive window for diagnostic purposes The default value is 10 and values from 0 to 300 are acceptable The Meas Window prompt allows you to customize the width of the measurement window While this window is normally 10 cycles wide the option allows you to customize the width from 1 to 60 Pressing the W key returns the meter to the Shifts entry To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Site Data 4 27 April 2009 Entering Skan Measure Integrate Parameters To enter parameters for the Skan Measure Integrate mode in the Skan Measure option press the P arrow key once to reach the Integrate tab Then press ENTER to open the Integrate window which appears similar to Figure 4 12 below Skan Measure All cren Count Correlate A Divisor 2 5 Noise Level 5 Measure Only Figure 4 12 The Integrate Window in the Skan Measure Option 1 The first pro
120. ff the pipe as shown in Figure 3 25 below Note Remove excess dampening material as soon as possible before it adheres to the pipe and becomes difficult to remove Figure 3 25 DMP 1 Material with Transducer Footprint Cut Out 9 To remove any residual adhesive clean the cut out area with a rag or a piece of sandpaper or use varnish remover 10 Reinstall the fixture and transducers on the pipe Installing the Dampening Material Transducers and Fixtures 3 27 April 2009 Installing DMP 1 Dampening Material with CFG V Series Fixtures cont 11 Lay the second strip of dampening material flat Then cut the strip into two pieces each 4 5 in 12 cm wide 12 Wrap each of these strips around the pipe on the outside edge of the clamping fixture one upstream and one downstream The completed dampening material installation should appear similar to Figure 3 26 below Figure 3 26 Completed DMP 1 Installation 3 28 Installing the Dampening Material Transducers and Fixtures April 2009 Installing DMP 1 Dampening Material with PI Fixture 1 Be sure the PI clamping fixture is installed onto the pipe with the transducers as described in the section Installing the PI Fixture and Transducers on page 3 18 2 Approximate the axial distance from one transducer face to the other transducer face as shown in Figure 3 27 below Figure 3 27 Distance Between Transducer Faces 3 Lay the first strip of dampening material f
121. for Couplants A variety of couplants are available for use with GE Sensing transducers To obtain a material safety data sheet MSDS for any couplant GE Sensing supplies go to the GE Sensing web site and enter the Technical Support portal Material Safety Data Sheets for Couplants D 1 April 2009 Index A About Opt Mii iia dude Gide Ghee Me Poe r 6 21 Acceleration LIM It wens tara ene ae eee ae 9 33 Accuracy Thickness Gauge 1 eee 11 8 Accuracy Clamp on FlOW sois cororscasoss meandered a 11 2 AGTISYS ACT IR NtErfa CE ciao iad ca i a 2 4 ActiSys ACT IR220L infrared adapter o o oooooo ooo B 1 Air Installation Requirements for 2 0 cee ee o 3 5 Amplitude Discriminator Limits 0 00 0 cece eee ee 9 33 Analog Input Calibration 0 0 2 0 eee eee eee eee 9 21 Analog Inputs EOMMECHON Sinai RARA 2 3 in EnergyOplion ii A 4 37 Analog Inputs Entering 00 cee cee eee eee eee 4 34 Analog Output Calibration 0 cece eee eee ee 9 21 Analog Output Option erda eee eee 4 39 Analog Output Entering 0 cee eee eee eee eee 4 39 Analog Outputs CONMNMECHONS sack Soa ro dese Some da 2 3 Area Classifications 2 0 0 a a a e eens 11 6 Argon Installation Requirements for 0 2 cece eee eee 3 5 ATTOWUROYS ovo a o iia a Ae NEA 2 12 B Backlight Optom s ea cane sat Ake et ee eet eek oats 7 14 Backlight Timeout for 0 kc eects 7 14 Bar Graph Disp
122. fset Transmit Sample Size e Zero Cutoff e Velocity Averaging e Errors Allowed e Peak Detection Method Peak Thresholds Pulse and Code To enter the option scroll to the Signal Setup entry on the Service Menu and press ENTER The screen appears similar to Figure 9 16 below Signal Setup SE El Meas Mode Pulse Code Delta T Offset ns Transmit Sample Size Zero Cutoff Velocity Averaging Errors Allowed Cancel Figure 9 16 The Signal Parameter Window Servicing the PT878GC 9 25 April 2009 Setting up Signal Parameters cont 1 2 Press the V arrow key to enter the window The first prompt asks for the Delta T offset Delta T is the difference between the upstream and downstream transit times of the transducers The Delta T offset should normally be set to zero Note Consult GE Sensing before performing this step a Press ENTER to open the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm your entry The next prompt the transmitter sample size is the number of pulses each transmitter upstream and downstream emits It is set to 8 by default Note Consult GE Sensing before performing this step a Press ENTER to open the drop down list b Use the W or A arrow keys to scroll to the recommended number c Press ENTER to confirm your selection 4 T
123. g Logging Data 8 1 April 2009 Entering the Logging Menu To enter the Logging Menu press the MENU key at the lower right of the PT878GC keypad The Main Menu replaces the Status Bar at the top of the screen Press the P gt arrow key three times to scroll from the Site Menu to the Logging Menu At the Logging Menu press ENTER The screen appears similar to Figure 8 1 below Refer to Figure A 9 on page A 9 of Appendix A Menu Maps Site Program Meter iefefelfatemmservice Velocity ft s Manager yjnal dB N A Delta T ns Volume l s 0 10 0 0 EO No Errors Figure 8 1 The Logging Menu To scroll to a particular option press the V or A arrow keys until you reach the option Then press ENTER to open the option window When entering parameters in an option press e The V key to step through the available parameters e The A key to scroll back to a previously entered parameter The F2 key Cancel or the ESC key to exit an option at any time and return to Operate Mode without changing the parameters 8 2 Logging Data April 2009 The Log Manager The Log Manager offers users a way to check the status and memory size of all the logs currently pending running or finished To select Log Manager scroll to the Manager entry on the Logging Menu and press ENTER The screen appears similar to Figure 8 2 below The right section of the screen supplies information for the
124. gs April 2009 Setting Up User Tables When you program user functions see page 4 46 you can also support them with up to six user tables of non linear or empirical data To program one or more user tables 1 From the Meter menu scroll to the User Tables entry and press ENTER The window now appears similar to Figure 7 8 below User Function Tables Table Table 1 Table ID UserTable1 Data Points Max Points Edit Tables Figure 7 8 The User Tables Window 2 The first prompt asks you to select the table to be programmed a Press ENTER to open the drop down menu b Use the V or A arrow keys to scroll to the table you wish to program c Press ENTER to confirm the entry Programming Meter Settings 7 19 April 2009 Setting up User Tables cont 3 The next step is to create a Table ID a Press ENTER to open the window The screen now appears similar to Figure 7 9 below UserTable1 A K U 4 Figure 7 9 The Text Creation Window b Use the four arrow keys to scroll to the desired letter or symbol and press ENTER to add the letter to the label Note Pressing SEL causes the screen to alternate between a set of upper case capital letters and a set of symbols Use both screens to create the desired label c Repeat this procedure for ea
125. gure 5 15 below Press ENTER The Site Manager screen refreshes with the sites listed in alphabetical order Site Manager File Site Ke DEFAULT Rae ULT SIT By Date 03 04 04 14 51 10 5111 bytes 118272 bytes free Figure 5 15 The Sort Submenu Listing Files in Chronological Order If you prefer to list your files chronologically by time of creation within the Site Manager press MENU to open the File Menu Then press the gt arrow key twice to scroll from the File Menu to the Sort Menu and scroll to the By Date option Press ENTER The Site Manager screen refreshes with the sites listed in chronological order from the most recent to the earliest Creating and Managing Sites 5 17 April 2009 Chapter 6 Displaying and Configuring Data The PT878GC allows you to view from one to four different measurement parameters simultaneously The screen can show these parameters not only in numeric format but as line or bar graphs as well You can configure any given measurement for your particular requirements To configure an individual measurement press SEL from the Operate Mode window shown in Figure 2 5 on page 2 9 A cursor appears next to the parameter closest to the upper left corner Continuing to press SEL enables the cursor to scroll through the other displayed measurements Once you have reached a particular window pressing the ENTER button opens the menu for that w
126. h a site updating the display with the most current information in one of two ways e Press F2 Refresh to refresh the highlighted file From the File Menu scroll to the Refresh option and press ENTER The updated information on the highlighted file appears in the window on the right Renaming a Site If you want to rename a site first be sure the site has been highlighted in the left window of the Site Manager Then press MENU to enter the File Menu scroll to the Rename option and press ENTER The screen appears similar to Figure 5 9 below Rename Site DEFAULT Figure 5 9 The Rename Site Window Use the four arrow keys to scroll to the desired letter or number and press ENTER Repeat this procedure until you have created the desired site name Press F1 Delete to remove any unwanted letters or numbers When you have finished Press F2 Cancel to erase the entry or Press F3 OK to confirm the entry The PT878GC remains in Site Manager with the site listed under the new name but not the old name Creating and Managing Sites 5 9 April 2009 Deleting a Site To delete a site in the Site Manager first be sure you have highlighted that site in the left window of the Site Manager Then press MENU scroll to the Delete option and press ENTER The screen appears similar to Figure 5 10
127. hat indicate meter operations not otherwise shown Table 2 3 below lists the icons and their meanings Table 2 3 Icons in the System Tray Function Meaning IR Transfer IR data transfer in progress Alert Indicates the meter encoun tered an error in operation Log Running Indicates a log is running marks Log Pending Indicates a log is pending no marks Stopwatch Calibration Gate Operation Watch is stopped when the gate is closed or runs when it is open See page 3 46 Snapshot Indicates that the Snapshot To file function has been activated To Printer so users can take screen cap tures see page 6 23 The bottom of the screen displays the three feature key options F1 F2 and F3 The feature keys have different functions depending on the task you are performing Initial Setup 2 11 April 2009 Keypad The PT878GC keypad has 25 keys The functions for each key are as follows see Figure 2 7 on the next page e 3 function keys F1 F2 F3 enable you to select the special functions which appear at the bottom of the screen 12 numeric keys including and enable you to enter numeric data e 4 arrow keys d P A W enable you to move through the menu options e Help key enables you to access on line help MENU Menu key enables you to access the Menu Bar e ENTER enables you to enter a particular menu and enters sel
128. hat the OuickBeam software available through the path C Program Files QuickBeam Suite is running and that the IR beam on the PT878GC GC has clear access to the IR sensor connected to the PC port 2 Highlight the desired site in the left window of the Drive Manager 3 Press MENU scroll to the Transfer option and press ENTER The screen shows a message indicating that the PT878GC is searching for an infrared device If the scanner finds no device a window appears with this message and asks if you want to try again If it finds a device it sends another message indicating that it is uploading the site The meter also displays a message if the upload fails When the upload is complete the meter returns to the Drive Manager The PC holds the transferred file in the QuickBeam IR Inbox folder as shown in Figure 6 13 on the next page You can open the file on the PC using any text editor 6 16 Displaying and Configuring Data April 2009 Transferring a File to a PC cont wa C lr_Inbox ioj x File Edit View Help E Default2 sit 1 object s selected 16 24KB y Figure 6 13 The IR_Inbox Folder with Transferred File Transferring a File from a PC to the PT878GC Once you have stored site or meter files to a PC you can then transfer them back to the PT878GC over the IR interface The PT878GC only accepts files with a sit site or met meter extension If you try renaming another type of file with a
129. he Diameter prompt the meter asks for the pipe outside diameter and thickness But if you have selected certain pipe materials carbon or stainless steel cast iron PVC and CPVC you have the option of entering the pipe dimensions by a standardized schedule Once you enter the nominal pipe size and schedule identification the PT878GC determines the OD and wall thickness from an internal table If you select a material that uses the Diameter alternative a You must select from two choices outside diameter or circumference The prompt moves to the OD outside diameter text box Type the pipe OD in mm or in into the text box and press ENTER to confirm the choice or Move the prompt to the OD X PI circumference text box Type the circumference in mm or in into the box and press ENTER to confirm your choice In either case the next prompt asks for the wall thickness Type the value in mm or in into the box and press ENTER to confirm your choice Note The measurement units shown depend on the choices you have made in the English Metric window of the Meter menu Programming Site Data 4 9 April 2009 Entering Pipe Parameters cont If you select a material that has the Schedule option a The prompt asks if you wish to apply DIN the DIN schedule Press ENTER to select or deselect the DIN box If you do not select the DIN option the prompt moves to the OD text box and you enter the paramet
130. he File Menu to the Sort Menu shown in Figure 8 16 above Press ENTER The Log Manager screen refreshes with the sites listed in alphabetical order Listing Logs in Chronological Order If you prefer to list your logs chronologically by time of creation within the Log Manager press MENU to open the File Menu Then scroll from the File Menu to the Sort Menu and scroll to the By Date option Press ENTER The Log Manager screen refreshes with the sites listed in chronological order from the most recent to the earliest Logging Data 8 23 April 2009 Chapter 9 Servicing the PT878GC For user convenience the PT878GC offers a Service Menu This menu enables users to perform a variety of functions that they might occasionally require print out reports e calibrate the PT878GC run diagnostics set up signal parameters and peak detection define error limits test the meter screen and keys determine setup errors with impulse response check test points return to factory default parameters load updated versions of the meter program into the PT878GC Servicing the PT878GC 9 1 April 2009 Entering the Service Menu To enter the Service Menu press the MENU key at the lower right of the PT878GC keypad The Main Menu replaces the Status Bar at the top of the screen Press the arrow key four times to scroll from the Site Menu to the Service Menu At the Service Menu press ENTER The screen app
131. he Wave Snapshot option allows you to capture receive signals to a file that you can send to a PC for diagnostic purposes To use this option scroll down to the Wave Snapshot entry in the Service Menu and press ENTER The PT878GC then captures three pairs of upstream and downstream raw signals to a file named Wave01 met If you repeat the captures the successive files will be named Wave02 met Wave03 met etc You can then transfer the files over the IR port to a PC for analysis by a service engineer Note Refer to page 6 16 for information on transferring a file to a PC Applying a Stored Signal for Diagnosis The Simulate option places the PT878GC in a mode in which it uses a stored signal instead of the live signal from the transducers to make flow calculations for diagnostic purposes On the PC you must rename a Wavexx met file as Wave met and send it back to the PT878GC over the IR link Then on the PT878GC scroll down to the Simulate entry in the Service Menu and press ENTER The PT878GC then applies the simulated signal Note Refer to page 6 17 for information on transferring a file from a PC to the PT878GC 9 40 Servicing the PT878GC April 2009 Testing the Battery The Battery Test option provides additional battery information for service troubleshooting To enter the option scroll down to the Battery Test entry in the Service Menu and press ENTER The screen appears similar to Figure 9 25 below Service Ba
132. he next prompt asks for the zero cutoff Near zero flow the PT878GC may have fluctuating readings due to small offsets caused by factors such as thermal drift in the fluid The zero cutoff causes velocity measurements less than the cutoff to be reported as zero To set the cutoff a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your entry 9 26 Servicing the PT878GC April 2009 Setting up Signal Parameters cont 5 The next prompt asks for velocity averaging the number of velocity measurements to average together to smooth out noise in the system a Press ENTER to open the drop down list b Use the W or A arrow keys to scroll to the desired number c Press ENTER to confirm your selection 6 The final prompt errors allowed specifies the number of errors the meter can record before displaying an error message a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your entry You have finished entering data in the Signal Parameter window To leave this window e Press the V key to return to the Signal Parameter tab and the P gt arrow key to move to the Measurement Mode tab Press F2 Cancel to return to Operate Mode without confirming the changes Press F3 OK to confirm the new data and return to Operate Mode Servicing the PT878GC 9 2
133. he screen now appears similar to Figure 6 6 below While following the programming instructions refer to Figure A 2 on page A 2 of Appendix A Menu Maps SIGE Program Meter Logging Service Manager Signal dB Save Now 1 View 32 2 Views CUM 3 Views 4 Views Volume l s FKeys About 0 0 Drive Manager E0 No Errors Figure 6 6 The Site Menu To specify the number of parameters displayed go to page 6 10 To customize or clear softkeys FKeys go to page 6 11 Displaying and Configuring Data 6 9 April 2009 Specifying the Number of Displayed Parameters As mentioned earlier the PT878GC can display one to four different measurement parameters simultaneously However sometimes you might wish to display only one or two parameters To change the number of open display windows 1 Press MENU 2 From the Site Menu shown in Figure 6 6 on page 6 8 use the W Jor A arrow keys to move to the desired number of views 1 View 2 Views etc Press ENTER The screen displays the designated number of windows For example Figure 6 7 below shows the screen displayed in Figure 6 3 on page 6 4 reconfigured for a single view ABC SIT 2000 11 30 09 53 AM Velocity ft s 12 2 0 6014 i 1 10 Seconds EO No Errors Figure 6 7 Display Screen Configured for Single View Note The PT878GC opens display windows from the top that is if you press I Vi
134. hical form on a 240 x 200 pixel EL backlit LCD graphic screen The TransPort also has the capability of logging over 100 000 flow data points internally Using an infrared communications port the TransPort can transmit or print logged data as well as site files real time data and other stored data To assist you the TransPort is fully equipped with context sensitive on line help which is accessible at any time by simply pressing the Help key Internal diagnostic and troubleshooting features help isolate and remedy common flowcell and transducer problems 1 2 Features and Capabilities April 2009 System Description The TransPort is only one part of the flowmeter system The other part of the system is the flowcell which consists of the pipe and the transducers The Flowcell The flowcell is that part of the system that uses ultrasonic pulses to interrogate the flow It consists of the flowcell pipe and the transducers A FLOWCELL PIPE The flowcell can either be created in the existing piping for example by clamping non wetted transducers onto the pipe or inserted as a substitute pipe section spoolpiece The flowcell must provide mechanical support for the transducers and assure stable conditions for accurate flow measurement B TRANSDUCERS The transducers convert electrical energy into ultrasonic pulses when in a transmit cycle and convert the ultrasonic pulses back to electrical energy when in a rec
135. hin the Meter Settings options To confirm the entries and return to Operate Mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key 7 8 Programming Meter Settings April 2009 Changing Date and Time Appearance Locale In addition to setting the correct date and time you can also change its presentation to suit local preferences You can select a time display of AM PM or 24 hour time To alter the time and date display 1 From the Meter menu scroll to the Locale entry and press ENTER The Display Options window opens on the Format tab as shown in Figure 7 4 below To step through each parameter press the W key Display Options Display Locale Separators Date Time Decimal Date Format MM DD YYYY Time Format 12 Hour Date Time Decimal Formats MM DD YYYY HH MM SS PM 123 45 Figure 7 4 Format Tab in the Display Options Window Programming Meter Settings 7 9 April 2009 Changing Date and Time Appearance cont 2 The first series of prompts asks you to select separator symbols for the date time and decimal You can choose from a dash comma and slash for the date from a period and colon for the time and from a period or comma for the decimal place For each symbol type a Press ENTER to open the drop down menu b
136. hoes from the base of pits that represent minimum remaining wall thickness Also duals may often be used more effectively on rough outside surfaces Couplant trapped in pockets on rough sound entry surfaces can produce long ringing interface echoes that interfere with the near surface resolution of single element transducers With a dual the receiver element is unlikely to pick up this false echo Finally duals may be designed for high temperature measurements that would damage single element contact transducers Ultrasonic Thickness Gauge Theory of Operation C 1 April 2009 Factors Affecting Performance and Accuracy A Surface Condition Loose or flaking scale rust corrosion or dirt on the outside surface of a test piece will interfere with the coupling of sound energy from the transducer into the test material Thus any loose debris of this sort should be cleaned from the specimen with a wire brush or file before measurements are attempted Generally it is possible to make corrosion measurements through thin layers of rust as long as the rust is smooth and well bonded to the metal below Some very rough cast or corroded surfaces may have to be filed or sanded smooth in order to insure proper sound coupling It may also be necessary to remove paint if it has been applied in thick coats or if it is flaking off the metal While it is often possible to make corrosion measurements through thin coats of paint on the order of a few thousa
137. hrough the available parameters e The A key to scroll back to a previously entered parameter The F2 key Cancel or the ESC key to exit an option at any time and return to Operate Mode without changing the parameters 7 2 Programming Meter Settings April 2009 Selecting Measurement Units The first option Units enables you to select either English or Metric units as global measurement units for the PT878GC The selected units then become the default settings for every measurement that has the option for metric English units In addition you can select the type of pressure units displayed To select the units scroll to the Units entry on the Meter menu and press ENTER The Meter Settings window opens as shown in Figure 7 2 below Meter Settings Units Date Pressure Units 2000 11 1 Bars Time 10 08 53 AM Figure 7 2 The Meter Settings Window 1 At the Units prompt use the lt d and P keys to scroll between English and Metric units 2 Press ENTER to confirm the choice 3 To enter the Pressure Units prompt press the W key and then the P keys to reach the prompt Programming Meter Settings 7 3 April 2009 Selecting Measurement Units cont a Press ENTER to open the drop down menu b Use the V and A arrow keys to scroll to the desired choice e PSIA e KPA e Bars e MMGH c Press ENTER to confirm the entry To confirm the entries
138. ibration changes Servicing the PT878GC 9 11 April 2009 Calibrating the Thickness Gauge Transducer To zero the transducer offsets go to the Zero tab Press the lt d or gt gt arrow key until you reach the Zero tab and press ENTER The screen appears similar to Figure 9 9 below Display Graph Velocity IY Materia Single Dual Calibration Block 1 Length 0 mm Calibrate Transducer Delay US Calculated 0 Current Figure 9 9 The Zero Window 1 Press the V arrow key to enter the window 2 The first prompt asks you to choose between single and dual point calibration Use the lt and P arrow keys to move to the appropriate radio button and press ENTER Note GE Sensing recommends dual calibration Dual point calibration is more reliable but it requires two known thicknesses of the calibration material Use single point calibration only if you know the sound speed in the calibration block material to a high degree of accuracy See Appendix C for more information 3 The next prompt asks you to enter the length of Block 1 If you are using a GE Sensing supplied test block the length is printed on the block Press ENTER to open the text box 9 12 Servicing the PT878GC April 2009 Calibrating the Thickness Gauge Transducer cont a Press ENTER to open the text box b Use the numeric keys to enter the length c Press
139. ic signal If the display does not show a signal image similar to Figure 9 7 below you may have a problem with the transducer couplant or the programmed values Also some materials such as Teflon or fiberglass do not support acoustic signals To open the Graph window and display the receive signal graphically press the lt 4 or gt arrow key until you reach the Graph tab and press ENTER The screen appears similar to Figure 9 7 below Thickness Gauge Measure Display Mere Velocity Zero Material Figure 9 7 The Thickness Gauge Graph Window Press F2 Cancel or F3 OK to return to Operate Mode or press the P arrow key to move to another window in the option However if you wish to adjust the graph press the V key The screen now appears similar to Figure 9 8 on the next page 9 10 Servicing the PT878GC April 2009 Displaying the Receive Signal in Graphical Format cont Thickness Gauge Measure Display Graph Velocity Zero Material Display Figure 9 8 The Graph Window in Zoom Format Press F1 In to zoom in to magnify screen details Press F2 Out to zoom out fully Press F3 to toggle between the left and right cursors e Press 4 and P to move the selected cursor left and right e Press V to select the graph e Press A to return to tab navigation Press ESC to return to Operate Mode without saving the cal
140. ilt in or external Note n some instances the infrared port must be enabled in the BIOS of your PC Consult your computer documentation manufacturer or MIS department Assistance is also available from the Microsoft Support Knowledge Base at http support microsoft com Establishing IR Communications with the PT878GC B 3 April 2009 Appendix C Ultrasonic Thickness Gauge Theory of Operation All ultrasonic thickness gauging involves timing the round trip of a sound pulse in a test material Because solid metal has an acoustic impedance that differs from that of gases liquids or corrosion products such as scale or rust the sound pulse will reflect from the far surface of the remaining metal The test instrument is programmed with the velocity of sound in the test material and computes the wall thickness from the simple formula Distance Velocity x Time Single element transducers use one element as both transmitter and receiver Dual element transducers incorporate separate transmitting and receiving elements These elements are mounted on delay lines that are usually cut at an angle to the horizontal plane the roof angle so that the transmitting and receiving beam paths cross beneath the surface of the test piece This crossed beam design of duals provides a pseudo focussing effect that optimizes measurement of minimum wall thickness in corrosion applications Duals are more sensitive than single element transducers to ec
141. indow as shown in Figure 6 1 below To learn how to use the display window menu go to pages 6 2 to 6 6 ABC SIT 2004 11 30 09 53AM fy gt Velocity ft s Signal dB meumeu View Measurement 32 0 00 LL Delta T ns Volume I s 0 10 0 0 EO No Errors Figure 6 1 Display Screen After Pressing SEL Displaying and Configuring Data 6 1 April 2009 The Format Option The first option on the menu Format allows you to specify the type of notation and the number of decimal places for the measurement in that window Press ENTER and the submenu shows two options Decimal Place and Notation Press the V or A arrow keys to select either entry and press ENTER The screen appears similar to Figure 6 2 below To scroll to a particular parameter or menu entry press the V or A key Note Jf the window displays a line or bar graph the Limits option see page 6 5 appears instead of Format in the menu Number Format Format Fixed Decimal Decimal Places 2 Figure 6 2 The Number Format Window 1 The first entry Format asks you to select the numeric format from three choices fixed decimal default and scientific Default provides the default resolution while Fixed Decimal allows users to override the standard resolution Scientific format displays the value in mantissa and exponent format a Press ENTER to open the drop down list of format choices b Sc
142. ing Menu Type Standa rd Error Start End Interval Measurement April 2009 A 10 Menu Service Note Press F2 Cancel to cancel entries and return to Menu Press F3 OK to confirm entries and return to Menu Diagnostics Calibrate Output i Input Signal Setup a Set Point Actual Signal Parameter Low High s Programming Transducer Delay Signal Inversion Off ra Noise Threshold Low Signal Threshold Detection Threshold Transmit Sample Size rare oars 4 8 16 Zero Cutoff Delta T Offset Velocity Averaging I I I I Measurement Mode Method Integrate Pulse Code Transmit Pulses T2411 Skan Measure Setup See Figure A 6 1 Yes No Count Correlate Twin Use Pulses 5 10 30 60 Stat Pulses Errors Allowed Signal Inversion i Off 4 Display Velocity Set A Block Length Zero
143. inimum of 10 ft 3 m of continuous straight pipe without flanges welds or coupling joints 3 2 Installing the Dampening Material Transducers and Fixtures April 2009 Application Requirements Before you begin to use the PT878GC you should ensure that your meter can handle the frequencies required for your particular application To check the capabilities of your particular PT878GC refer to the back label of the PT878GC shown in Figure 3 2 below The gray label below Communication lists the meter type and transducer frequency the PT878GC can support TRANSDUCER UP DOWN STREAM STREAM COMMUNICATION INPUT OUTPUT 1 Be 3 5 4 1 4 20mA ANALOG OUTPUT 2 16V switched 3 ANALOG INPUT A 4 ANALOG INPUT B 5 ARTN 6 DIGITAL OUTPUT 7 DRTN 8 RECEIVE MONITOR POWER 1 INFRARED COMMUNICATIONS PORT 1 12VDC 2 RTN 3 N C 4 N C PT878GC 02 200KHz TO 500KHz Power key HOLD FOR 1 SECOND TO TOGGLE BACK LIGHT ON OFF HOLD FOR 3 SECONDS TO SHUTDOWN METER HOLD FOR 15 SECONDS TO RESET METER GD menu key ANG econ OPEN MENU BAR ON MAIN SCREEN RMS PRESS AGAIN TO CLOSE MENU NOTE NOT ALL FORMS CONTAIN MENUS QD ENTER KEY PR ESS ONCE TO ACTIVATE ONTROL PRESS AGAIN TO ACCEPT CHANGES PRESS TO OPEN SELECTED FORM MENUS JEWS PRESS TO OPEN DATA VIEW MENUS ESCAPE KEY sel SELECT Key MAIN SCREEN PRESS TO MOVE CURSOR TO FIRST DATA VIEW PRESS A AGAIN TO MOVETO NEXT
144. ioning Alignment For proper sound coupling the transducer must be pressed firmly against the test surface On small diameter cylindrical surfaces such as pipes hold the transducer so that the sound barrier material visible on the probe face is aligned perpendicular to the center axis of the pipe See Figure C 1 below Transducer Figure C 1 Proper Alignment of Transducers for Cylindrical Surfaces While firm hand pressure on the transducer is necessary for good readings the probe should never be scraped along or twisted against a rough metal surface This will scratch the face of the transducer and eventually degrade performance The safest technique for moving a transducer along a rough surface is to pick it up and reposition it for each measurement not to slide it along Ultrasonic Thickness Gauge Theory of Operation C 3 April 2009 Factors Affecting Performance and Accuracy cont Remember that an ultrasonic test measures thickness at only one point within the beam of the transducer and that in corrosion situations wall thicknesses often vary considerably Test procedures usually call for making a number of measurements within a defined area and establishing a minimum and or average thickness Ideally data should be taken at increments no greater than half the diameter of the transducer to insure that no pits or other local variations in wall thickness are missed It is up to the user to define a pattern of
145. ions 0 cee eee eee eee A cack poem eoee ee ee Role Maeda PC Communications 00 eee eee eee RS232 to Infrared ane eee eee Thickness Gauge 2 cece eee eee Output Analog Entering aia Digital Entering 0 eee eee eee Outputs Analog QUIPUI tia Vanek tees Oxygen Installation Requirements for April 2009 Index cont P Parameters Displayed nunan annuae 6 10 Path for COMPSON e cl La hk oles ii aa 4 16 O 4 15 PE COMMUNICATION o coa ros pnd aa o ads 11 8 PEF Trato accu ek et peda 5 15 6 17 6 18 PIFIXtUFEINStOILING aru rra Se ba 3 18 Pipe Diameter EnterinQ ooooooooooomorommo oros 4 9 Pipe mog EME royo rodas a a da 4 11 Pipe Material isos is aia 4 8 Pipe MOLESTOS a ds 11 2 for Thickness Gauge 00ooococccc tenets 11 8 Pipe Option Men M pi enneren o aee A 4 Pipe Probles ie eos e aea giaa a td watts 10 10 PIPESIZES uri Sth nietes os dts vid 11 2 Pipe Thickness Range for Thickness GQUGe asse creian tonka a aE E ARARE s 11 8 Pipe Wall Thickness 0 cece cette teens 11 2 Power COMO ici ans 2 3 AA E 2 7 POWOrGONMECLIONS jara fr id a 2 3 e AA A aaah erg A eae 2 7 Pressure Requirements Alf 2 eee eee ees 11 3 Pressure Requirements Other Gases 00000 oo 11 3 PRINCE ii Poets decree esd E ont eager earienadt OA 11 8 Printer Specifications 0 0 2 0 cece eects 11 8 PENN a Log ia Ra 8 13 Pr
146. ith the 180 Scribe Line 3 22 Installing the Dampening Material Transducers and Fixtures April 2009 Installing the Second Bracket cont The spacing should now appear similar to that shown in Figure 3 21 below E Figure 3 21 The Installed CFG PI Fixture with Calculated Spacing Installing the Transducers 1 Check to be sure the second CFG PI holder bracket is correctly positioned 2 Apply a bead of CPL 16 couplant 6 mm 0 25 in wide on each transducer face See Figure 3 22 below Figure 3 22 Couplant on Transducer Face Installing the Dampening Material Transducers and Fixtures 3 23 April 2009 Installing the Second Bracket cont Note Do not slide the transducer with couplant along the surface of the pipe when mounting the transducer 3 With one hand mount one transducer into the PI fixture With the other hand tighten the transducer hold down screw gradually pushing the transducer down to the pipe surface Use a wrench to tighten the backing nut to prevent loosening due to vibration and thermal expansion IMPORTANT Do not use pliers or a wrench on the thumbscrew 4 Repeat step 3 for the other transducer 3 24 Installing the Dampening Material Transducers and Fixtures April 2009 Installing Dampening Material GE Sensing strongly recommends applying DMP dampening material in ALL clamp on applications to help eliminate short circuit noise The material comes in two versions Th
147. k for a few seconds and then restart If it does not follow this sequence consult GE Sensing 9 38 Servicing the PT878GC April 2009 Setting Impulse Response The Impulse Response option enables you to force the meter to transmit in one direction only without changing the AGC setting You can then diagnose problems with transducer pipe or fluid configurations To enter the option scroll down to the Impulse Response entry in the Service Menu and press ENTER The screen appears similar to Figure 9 24 below Impulse Response Direction Upstream Percent Gain 20 Stopped Figure 9 24 The Impulse Response Option 1 The first prompt asks in which direction you wish the meter to transmit upstream or downstream a Press ENTER to open the drop down list b Use the W or A arrow keys to scroll to the desired direction c Press ENTER to confirm your selection Servicing the PT878GC 9 39 April 2009 Setting Impulse Response cont 2 The second prompt asks for the percent of gain a Press ENTER to open the text box b Use the numeric keys to enter the desired percentage c Press ENTER to confirm your entry You have completed entering data for the Impulse Response option Press F1 to start transmitting in the chosen direction Press F2 to stop transmitting Press F3 to leave the option and return to Operate Mode Taking Wave Samples for Diagnosis T
148. kg Size h x wx d 9 4 x 5 5 x 1 5 in 238 x 138 x 38 mm Display 240 x 200 pixel backlit LCD graphic display Keypad 25 key rubberized tactile membrane keypad Internal Battery Rechargeable battery 8 hours of continuous operation Battery Charger Input 100 to 250 VAC 50 60 Hz 0 38 A Memory FLASH memory field upgradable Operating Temperature 20 to 55 C 4 to 131 F Storage Temperature 40 to 70 C 40 to 158 F Note To ensure maximum battery life storage temperature exceeding 35 C 95 F is not recommended for more than one month 11 4 Specifications April 2009 Standard Inputs Outputs One 0 4 to 20 mA current output One user selectable pulse solid state 5 V maximum or frequency 5 V square wave 100 to 10 000 Hz e Two 4 to 20 mA analog inputs with switchable power supply for loop powered temperature or pressure transmitters Digital Interfaces Infrared communication port for printer or PC interface Site Parameter Programming Menu driven operator interface using keypad and soft functions keys e On line help functions including pipe tables Storage for saving site parameters Data Logging e Memory capacity to log over 100 000 flow data points Keypad programmable for log units update times start and stop time Display Functions e Graphic display shows flow in numerical or graphic format e Displays logged data e Extensive diagnostic parameters Euro
149. label for the function The label corresponds to the measurement type 1 e velocity or temperature while the units symbol corresponds to the measurement units i e feet sec or degrees F a Press ENTER to open the text creation window which appears similar to Figure 4 22 below B L V 5 lt b Note Figure 4 22 The Text Creation Window Use the four arrow keys to scroll to the desired letter or symbol and press ENTER to add the letter to the label Pressing SEL causes the screen to alternate between a set of upper case capital letters a set of lower case letters and a set of symbols Use all three screens to create a desired label Repeat this procedure for each letter or symbol you wish to add to the label If you wish to delete a letter press F1 Delete to erase each letter or symbol from right to left on the label Up to 17 characters can appear in the label window When you have completed the label press F3 OK to confirm the label or F2 Cancel to leave the window without adding the label Programming Site Data 4 47 April 2009 Entering User Functions cont 3 The next prompt asks for the Units Symbol a Press ENTER to reopen the text creation window b Repeat the procedure used for the Label on the previous page to create the Units Symbol c When you have completed the entry press F3 OK to
150. lat Cut a strip to a width equal to the distance between transducer faces the distance illustrated in Figure 3 27 above 4 Wrap this strip around the pipe in the space between the transducers 5 Lay the second strip of dampening material flat Then cut the strip into two pieces each 4 5 in 12 cm wide 6 Wrap each of these strips around the pipe on the outside edge of the clamping fixture one upstream and one downstream The completed installation should appear similar to Figure 3 28 on the next page Installing the Dampening Material Transducers and Fixtures 3 29 April 2009 Installing DMP 1 Dampening Material with Pl Fixture cont Figure 3 28 Completed DMP 1 Installation 3 30 Installing the Dampening Material Transducers and Fixtures April 2009 Installing DMP 3 Compound with All Fixtures 1 Be sure the fixture and transducers are installed on the pipe as described in the previous sections of this chapter Remove the fixture and transducers but be sure to mark the approximate area of installation Remove any loose paint or rust with a file or emery cloth as shown in Figure 3 29a below If the finish is mirror smooth roughen the surface Figure 3 29 Filing a and Degreasing b the Pipe Surface 4 While wearing appropriate gloves degrease the surface as shown in Figure 3 29b above Place a piece of the DMP 3 material on top of the pipe Figure 3 30a and use the palm of
151. lay milan goede stance signa 6 4 Batteries Char cist etek edit 2 5 ENGIOING 0 08 cera geewonel aye dease ade eyecare hae aes 2 5 REPIOGING ista da a a a eee 2 6 Battery Charger ia ance E ie eee 7 5 7 6 Battery Charger Input 0 eee eee eee tees 11 4 BO ODE OM a ia Ren ae Aa aCe 7 5 Battery Test Option IA Se 9 41 Battery Internal Speciticatlonss 144 Wise nection Ma eRe 11 4 Battery TeStinge ii ante eran Sd aa Sandee heb 9 41 April 2009 Index cont Calibration Analog Input cocida hae kn 9 21 Analog OUtpUE stas in apatite a 9 21 Calibration Factor Entering a 0 cece 4 53 GOpturing SIGNGlS seco oes asdsseced dod ages dhs bad e440 el 9 40 Checks POWER ea bh AR ais eta daa 2 7 Clamping Fixture Installing ooooooooooomm 3 14 Clamp On Transducers Path Parameters fOr n on 2 cee eee eee 4 16 Clamp on Transducers NStGIMNGe toh eel ete kee A AER A RE Ae EN 3 1 Clearing Softkey 0 cece tenes 6 13 Communications Option 0 c eee cee eee eee 7 15 Mend Mapes dto ct ici to diate le chee ttle BAe at Atle td A 12 Configuring the display 0 0 cece cee eee ees 6 1 COMME Sat a dlrs reis 2 2 Analog puts cabo ae rd Ao AR 2 3 Analog Outputs inci td paces 2 3 A NA 2 3 A pape ber hatte poeta tee ATEA 2 3 CONTAS ORUM nd ds a di td das 7 12 Contrast Adjust seeto sre i ee Re eh ae Set 7 12 Correction Factors Option vgs Re te ea 4 50 Correction Fac
152. loosening due to vibration and thermal expansion 3 34 Installing the Dampening Material Transducers and Fixtures April 2009 Chapter 4 Programming Site Data On the PT878GC a Program Menu part of the Main Menu enables you to enter information that is specific to each site e Transducer types and paths Pipe materials and linings Fluid types e Standard volume and mass flow parameters Skan Measure parameters Analog input and output parameters Digital output parameters e User functions e Correction factors For immediate operation the PT878GC requires only transducer pipe and fluid data However additional information allows you to tailor measurements to your application Once you have entered this data you can save it in files and recall these files for later use The PT878GC can store up to MB of data in the meter at any one time But through the infrared link users can store an unlimited number of sites on a PC and then upload the sites as they are needed This chapter covers entering The Program Menu Transducer pipe and fluid parameters Input output and other setup parameters e User functions Programming Site Data 4 1 April 2009 Entering the Program Menu To enter the Program Menu press the MENU key at the lower right of the PT878GC keypad The Menu Bar replaces the Status Bar at the top of the screen Press the P arrow key once to scroll from the Site Menu to the Progra
153. lt d or P gt arrow key to move to another tab to take readings or perform a velocity calibration e Press F2 Cancel to return to Operate Mode without confirming the sound speed value Press F3 OK to confirm the new value The PT878GC returns to Operate Mode 9 8 Servicing the PT878GC April 2009 Measuring Thickness in Numeric Format To measure the actual thickness of a pipe apply couplant to the calibrated thickness gauge transducer and hold the transducer steady against the pipe Then press the 4 or P gt arrow key until you reach the Display tab and press ENTER The T Gauge Display option shows the thickness measurement in numeric format displayed in Figure 9 6 below Note Refer to Appendix C Ultrasonic Thickness Gauge Theory of Operation page C 3 to learn how to position and align the transducer Thickness Gauge Measure Display Velocity Material Thickness mm 42 71 Figure 9 6 The Thickness Gauge Display Window Be sure the Noise or Los loss of signal boxes do not appear Press F2 Cancel or F3 OK to return to Operate Mode or press the P arrow key to move to another window in the option Servicing the PT878GC 9 9 April 2009 Displaying the Receive Signal in Graphical Format Used chiefly for diagnostic purposes the Graph option helps to determine why the thickness gauge is not working if you suspect a problem The graph shows an image of the acoust
154. m Menu At the Program Menu press ENTER The screen appears similar to Figure 4 1 below While following the programming instructions refer to Figure A 2 on page A 2 of Appendix A Menu Maps Site eaelelectammlVieter Logging Service Vel Transducer Signal dB Pipe Lining Fluid 32 Path o Std Vol Mass Flow Sen veasure Volume l s Analog Input Analog Output Digital Output 0 0 User Functions Correction Factors O Figure 4 1 The Program Menu To scroll to a particular option press the W Jor A arrow keys until you reach the option Then press ENTER to open the option window When entering parameters in an option press e The V key to step through the available parameters e The A key to scroll back to a previously entered parameter e The F2 key Cancel or the ESC key to exit an option at any time and return to Operate Mode without changing the parameters Note On certain text box parameters you can use the numeric keys to enter a desired value You can then use the or V keys to change the value if necessary 4 2 Programming Site Data April 2009 Entering Transducer Parameters To enter the Transducer option scroll to the Transducer entry on the Program Menu and press ENTER The screen appears similar to Figure 4 2 below To step through each parameter or reach a particular parameter press the W key Refer to Figure A 3 on page A
155. mmed using the Ser value is outside of vice Menu limit change the lim Error Limits its as described in option as Chapter 9 on page 9 described in 32 See Flowcell Chapter 9 Problems on page 10 9 and Transducer Problems on page 10 11 E4 Signal If too high Check for source of Quality electronic fail electrical interfer ure If too low ence Check electron flowcell elec ics with a test trical problem flowcell Check to see if the velocity is above the maximum value Check to see if the pressure is above the minimum required pressure for the pipe OD WT If unit still fails to operate con tact the factory ES Amplitude Excessive parti See Flowcell Prob Error cles or liquid lems on page 10 9 present in fluid A lot of second phase present 10 4 Diagnostics and Troubleshooting April 2009 Table 10 1 Error Messages cont Error Message Problem Possible Cause Action E6 Cycle skip Acceleration Poor flow con ditions or bad transducer spac ing Check transducer spacing as pro grammed and as set on pipe See Flowcell Problems on page 10 9 and Transducer Problems on page 10 11 Analog Out Error Under current output Check that output load is within specification lt 550 ohm High Signal Entry of improper value in Transducer or Pipe sub menus Check values in Transducer and Pipe submenus Remove preamp Equation Limit Supersa
156. mplitude discriminator of the fluctua fluctuations downstream transducer tions T Up Displays the upstream N A N A transit time of the ultrasonic signal in micro seconds T Down Displays the downstream tran N A N A sit time of the ultrasonic signal in micro seconds Gain Up Displays upstream gain in dB N A N A Gain Dn Displays downstream gain in N A N A dB CNTup Displays the AGC DAC count N A N A for upstream gain setting CNTdn Displays the AGC DAC count N A N A for downstream gain setting 10 6 Diagnostics and Troubleshooting April 2009 Table 10 2 Diagnostic Parameters cont Diagnostic f Parameter Displays Soundspeed Displays the measured sound Check the sound speed m s or f s speed of the fluid of fluid in Sound Speeds and Pipe Size Data P up Displays signal peaks for the 100 lt 100 gt 900 upstream transducer 900 P dn Displays signal peaks for the 100 lt 100 gt 900 downstream transducer Reynolds Displays the Reynolds Num ber K RE Displays the K Factor based on the Reynolds Number Raw Up Displays raw upstream signal Demod Up Displays demodulated N A N A upstream signal Skan Corr Up Displays skan correlation N A N A upstream signal Raw Down Displays raw downstream N A N A signal Demod Down Displays demodulated N A N A downstream signal Skan Corr Displays skan correlation N A N A Down downst
157. mpt A Divisor is used in the calculation of the Measure Mode integrated threshold level and is not normally changed The default value for this parameter is 2 5 and values from 0 1 to 10 are acceptable a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm the entry 2 Next enter the Noise Level Offset of Peak from 0 to 95 and press ENT The default value is 20 a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm the entry 4 28 Programming Site Data April 2009 Entering Skan Integrate Parameters cont 3 If you wish to use Measure Times only instead of both Skan and Measure times press ENTER at the Measure Only prompt You can also press ENTER to deselect the prompt Pressing the W key returns the meter to the A Divisor entry and pressing the A key returns the meter to the Integrate tab To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Site Data 4 29 April 2009 Entering Skan Measure Count Parameters To open the Skan Measure Count window in the Skan Measure option press the gt arrow key twice from the All tab to reach the Count tab Press ENTER and the screen appears similar to Figure 4 13
158. n 9 40 Signals Capturing 0 6 ee cece cette eens 9 40 Simulate Opti s seep seu raxiere seg posse pester ns dies ees 9 40 Site Dele Mart ee ee eG ae a eee 5 10 Renaming A ii ct dad a 5 9 SOI tor e tios ed 5 7 Saving with Different Name ooooooocccccooooococos 5 8 Transferring to Plot a ta dio ia 5 13 5 14 SEMANA vita ia A dn a a bases 5 2 SOC MENU ra a a Seat a 5 17 Site Men ci A A ean dene ale et 5 1 Site Parameter Programming eee ee eee ee o 11 5 Site Creating ANEW 6 cece cece cette tenn eee neees 5 4 Site ODOM Cis saccs 3 5 eccans Pecans EEEE EAE laura E a a h 5 6 Skan C rreldte say cna arate hanna ares Hee SR es 9 28 SKOM COUNTY 25 2 ae t te Wade a dao ia 9 28 ol ao pew ale meas Siete Deon bee wes 9 28 SKOM MOCSUNG A EER see deca ERNA 9 28 Ska OMS Ao Ft iia wae cant aie 4 25 Softkey Clearing 2 6 eee cee eee eens 6 13 Softkeys CUStOMIZING 6 ete eee eee 6 11 Software Boot ade ii et telat ea fed te ia hd lat sot eaa 9 43 FPGA dicen che e ha ot aA a ba a bab taba 9 43 A POG G fn iaa 9 43 SoftWare VEFSION como caste a he leet eR RE 6 21 Sort Menu MENE MANE cani as 6 20 MLO Mangger seccion tebeo eres 8 23 INS MANOIER 2 AA 5 17 Sound Speed Limits 0 cece eee eee eee 9 33 April 2009 Index cont Sound Speed Calculating 0 cee eee eee 9 14 9 15 Span Full Scale Value for Analog QULDUE voii aa 4 41 Special Transducers Entering DA ta A ole 4
159. n in Figure 6 9 on the next page Displaying and Configuring Data 6 11 April 2009 Customizing Softkeys cont Configure FKey Select a menu item Site Manager Save Now 1 View 2 Views Figure 6 9 The Configure FKey Window 4 Press ENTER to open the menu drop down list Then use the W or A arrow keys to scroll to the desired submenu for example Contrast 5 Press ENTER to confirm the entry and press F3 OK to confirm the entry and close the window Press F2 Cancel to close the window without changing the key The screen now appears similar to Figure 6 10 on the next page with the F1 window displaying Contrast Pressing F1 opens the Contrast window To customize a softkey from a particular menu 1 Open the desired menu on the Menu Bar see Chapters 4 5 7 8 and 9 for details on particular menus and scroll to the desired option 2 Press the desired softkey A window appears with the question Assign current menu command to FKeyX 3 Press F3 Yes to confirm the assignment and close the window Press F2 No to close the window without changing the key 6 12 Displaying and Configuring Data April 2009 Customizing Softkeys cont ABC SIT 2004 3 30 09 53 AM Velocity m s Gain dB 1 5121 6 _ 10 0 4 30 3 Delta T ns Volume ft s 1 65 0 0 E2 Soundspeed conrast AT Figure 6 10 The Display Screen
160. n sound speed c Press ENTER to confirm the selection Pressing the W key returns you to the Fluid prompt To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key 4 14 Programming Site Data April 2009 Entering the Signal Path Parameters To enter the Path option scroll to the Path entry on the Program Menu and press ENTER From the Lining window you can scroll back up to the Lining tab and press the P arrow key to reach the Path window and press ENTER The screen appears similar to Figure 4 6 below To step through each parameter press the W key Refer to Figure A 3 on page A 3 of Appendix A Menu Maps Transducer Pipe Transducer Pipe Lining Fluid Gum Path Length 248 92 Axial Length 203 2 Traverses 1 Spacing Figure 4 6 The Signal Path Window Note The Path Length and Axial Length parameters are not available for clamp on transducers Programming Site Data 4 15 April 2009 Path Parameters for Clamp On Transducers The PT878GC path menu includes two parameters for clamp on transducers e Traverses Spacing 1 The PT878GC first prompts for traverses the number of times the ultrasonic signal crosses the pipe a Press ENTER to open the drop down list of traverse numbers b Scroll to
161. nd XP do not Refer to Appendix B Before you install new coding you must be sure that the PC has the correct protocols to transmit the software to the meter Setting up the PC Note The use of Hyperterminal is shown here as an example If you are using a different communications software see ts manual for detailed instructions 1 From the Start Menu click Programs Accessories Hyperterminal to open the Hyperterminal window 2 If the call is not connected click on Connect from the Call menu in Hyperterminal 3 From the File menu click Properties Be sure the New Connection Properties window is set to your virtual infrared port Note You can determine which virtual port your infrared is using by opening Infrared Monitor in the Control Panel and clicking on the Options tab It displays the message Providing Application Support on and then lists the virtual infrared port as shown in Figure 9 29 on the next page 9 46 Servicing the PT878GC April 2009 Setting up the PC cont Infrared Monitor Status Options Preferences Identification IV Enable infrared communication on Jcom2 Providing application support on COM4 Y IV Search for and provide status for devices within range Search every EME seconds Limit connection speed to 115 2kbps y m seconds if communication gt y 40 e S Disconnect in is interrupted Restore Defaults OK Cancel Enpi Help Figure 9 29 Port Set
162. nd box asks for the interval in terms of seconds minutes hours or days Press ENTER to open the drop down menu and then press the V or A keys to move to the desired parameter Press ENTER to confirm the entry 7 The final three prompts ask for details of the graph configuration if you want to use lines plot the average value or show the minimum and maximum values Press the V key to step through each value and press ENTER to add a given detail as part of the graph 8 When you have configured the graph press F3 OK to confirm the graph settings The screen returns to Operate Mode and displays any changes 6 6 Displaying and Configuring Data April 2009 The Measurement Option On occasion you might need to change the actual parameter measured in a given window The Measurement option enables you to reconfigure the window with one of five categories of data source velocity volume forward or reverse totalizer or diagnostics and appropriate English or metric measurement units To enter the Measurement option 1 Press SEL from the Operate Mode window until you have reached the desired measurement 2 Press ENTER to open the Display Menu 3 Be sure the Measurement option is highlighted and press ENTER The screen appears similar to Figure 6 5 on page 6 8 The left column displays the measurement data sources while the right column displays English and metric measurement units or with the
163. ndths of an inch or 0 1 0 2 mm thick paint will attenuate signals or possibly create false echoes causing inaccurate measurements Severe pitting on the outside surface of a pipe or tank can be a problem On some rough surfaces the use of a gel or grease rather than a liquid couplant will help transmit sound energy into the test piece In extreme cases it will be necessary to file or grind the surface sufficiently flat to permit contact with the face of the transducer In applications where deep pitting occurs on the outside of a pipe or tank it is usually necessary to measure remaining metal thickness from the base of the pits to the inside wall There are sophisticated ultrasonic techniques utilizing focused immersion transducers that can measure directly from the base of the pit to the inside wall but this is generally not practical for field work The conventional technique is to measure unpitted metal thickness ultrasonically measure pit depth mechanically and subtract the pit depth from the measured wall thickness Alternately one can file or grind the surface down to the base of the pits and measure normally As with any difficult application experimentation with actual product samples is the best way to determine the limits of a particular gauge transducer combination on a given surface C 2 Ultrasonic Thickness Gauge Theory of Operation April 2009 Factors Affecting Performance and Accuracy cont B Transducer Posit
164. ng Communications Settings cont 6 The next prompt asks you to select either one or two stop bits The default number is one Use the lt 4 and P keys to scroll to the desired number and press ENTER 7 The final prompt asks you to select either seven or eight data bits The default number is 8 Use the lt d and P keys to scroll to the desired number and press ENTER To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Meter Settings 7 17 April 2009 Resetting Forward and Reverse Totals On occasion it might be necessary to clear and reset the forward and reverse totals computed by the Forward and Reverse Totalizers To reset the totals 1 From the Meter menu scroll to the Totals entry and press ENTER The window now appears similar to Figure 7 7 below Site Program MEE Logging Service Velocity f Units Signal dB Battery Date Time 32 0 Locale Y Contrast Backlight Language PETER Communication MALES Reset Both 0 Snapsho Reset Rev Total AE Figure 7 7 The Resetting Totals Menu E0 No Errors 2 Use the V or A arrow keys to choose the total to be reset 3 Press ENTER to reset the total s The meter resets the selected total s to 0 0 7 18 Programming Meter Settin
165. ng recommends calibrating the thickness gauge periodically as discussed on page 9 12 before measuring thickness To enter the Thickness Gauge Display option scroll to the T Gauge Display entry on the Service Menu and press ENTER The screen appears similar to Figure 9 5 below Thickness Gauge Measure Display Graph Velocity zero MEGER Material Other Sound Speed Figure 9 5 The Material Window 1 From the Thickness Gauge Display option press the P arrow key four times to enter the Material window 2 The first prompt asks you to select the material for the pipe wall you wish to measure from a drop down list a Press ENTER to open the list b Use the W or A arrow keys to scroll to the desired material c Press ENTER to confirm your selection Servicing the PT878GC 9 7 April 2009 Entering the Material and Sound Speed cont If you have selected a preprogrammed material you have completed entering data in this window Pressing the W key returns the program to the Material tab But if you selected Other you can also enter a specific sound speed 3 To enter the sound speed a Press ENTER to open the text box b Use the numeric keys to enter the known sound speed in the pipe material from the brochure Sound Speeds and Pipe Size Data 914 004 c Press ENTER to confirm your entry To leave the Material window Press the
166. ng the changes The PT878GC returns to Operate Mode Press F3 OK to confirm the new data and return to Operate Mode The PT878GC returns to Operate Mode Servicing the PT878GC 9 19 April 2009 Displaying Diagnostic Parameters The Diagnostics option enables you to view current diagnostic parameters without having to open a display window in Operate Mode To enter the option scroll to the Diagnostics entry on the Service Menu and press ENTER The screen appears similar to Figure 9 13 below Diagnostic Test eter Errorox0000 Down T 430 67 430 67 Pit 493 493 Sig Quality 5257 4952 Amplitude 30 4 75 8 Gain 6 5 7 0 count aia 597 Signal 65 3 65 3 Soundspeed ms 1503 9 Reynolds Sod k Re 0 7704 Delta T 0 63 m s 0 03 Cancel Figure 9 13 The Diagnostics Window Press F2 Cancel or F3 OK to close the window and return to Operate Mode Note For an explanation of diagnostic parameters refer to Chapter 10 Diagnostics and Troubleshooting 9 20 Servicing the PT878GC April 2009 Calibrating the Analog Output and Inputs The Calibration option allows you to calibrate the analog output and inputs To enter the option scroll to the Calibrate entry on the Service Menu and press ENTER The screen appears similar to Figure 9 14 below Calibrate Test I O INTO Analog Input Setpoint O 4mA 60 20mA Actual 4mA Actual 20 mA 4 20 Calibrate Reset
167. nsPort will tolerate relatively large changes in gas sound speed due to changes in gas composition and temperature However such changes must occur slowly Rapid fluctuations in the gas sound speed to a value that is considerably different from that programmed into the PT878GC will result in erratic or inaccurate flow rate readings Refer to Chapter 4 Programming Site Data pages 4 13 and 4 14 Pipe Problems Improper pipe conditions and or flowcell installation can cause problems with measurement of the gas flow Contact GE Sensing if you cannot solve pipe related problems By far the most common pipe problems are the following 1 THE COLLECTION OF MATERIAL AT THE TRANSDUCER LOCATION S Accumulated debris at the transducer location s will interfere with transmission of the ultrasound signals As a result accurate flow rate measurements are not possible Realignment of the flowcell or transducers often cures such problems Refer to Chapter 3 for proper transducer installation 2 INACCURATE PIPE MEASUREMENTS The accuracy of the flow rate measurements is no better than the accuracy of the programmed pipe dimensions For a flowcell supplied by GE Sensing the correct data will be included in the documentation For other flowcells measure the pipe wall thickness and diameter with the same accuracy desired in the flow rate readings Also check the pipe for dents eccentricity weld deformity straightness and other factors that may ca
168. nt out download or otherwise record all logs settings and other data you wish to save IMPORTANT When uploading new software the PT878GC uses a bootloader program Be sure that the software you are installing is compatible with the installed bootloader version shown in the About option discussed on page 6 21 If you need to replace both programs install the new bootloader first before any other software With the current bootloader software two interfaces are available for sending software to the PT878GC IrOBEX a recently introduced Microsoft infrared standard which allows more straightforward use and faster file transfers while tolerating IR interruptions better e IrCOMM an infrared standard supported by certain Microsoft operating systems GE Sensing recommends updating software via the IrOBEX standard however the IrCOMM standard is available for users who have problems with IrOBEX This section covers procedures for both standards Servicing the PT878GC 9 43 April 2009 Updating Software Via IrOBEX To begin updating software via IrOBEX scroll down to the Flash Update entry in the Service Menu and press ENTER The screen appears similar to Figure 9 27 below Update Flash WARNING This will erase the instrumentation coding Choose Cancel to exit or OK to continue Figure 9 27 The Flash Update Window Press F2 Cancel to return to Operate Mode withou
169. nting the transducer 2 Set the first mounting block either left edge or right edge at a convenient number on the scale such as 1 in or 1 cm Install the first transducer with the BNC connector pointing away from the center of the V block fixture Hold down the transducer mounting screw onto the insert which in turn applies pressure to the transducer Use a handtight grip to set the transducer in contact with the pipe as shown in Figure 3 11 below Use a wrench to tighten the backing nut to prevent loosening due to vibration and thermal expansion IMPORTANT Do not use a wrench or pliers on the screw Figure 3 11 Installing the First Transducer 3 16 Installing the Dampening Material Transducers and Fixtures April 2009 Installing the Transducers cont 3 Slide the second mounting block to the calculated spacing plus the initial scale number selected for the first mounting block For example a Initial convenient number for the first mounting block 5 cm or 2 in b Spacing as calculated by the PT878GC 0 5 in or 12 5 mm c Second mounting block final location 1 0 5 in 1 5 in or 1 cm 1 25 cm 2 25 cm The overall spacing between yokes should be left edge to left edge or right edge to right edge Figure 3 12 below shows typical positioning Figure 3 12 Top View of V4 Fixture with Both Transducers 4 Ina similar manner install the second transducer as shown in Figure 3 12 above In
170. ntry 4 The program now asks if you wish to Limit the Measurement Delta The default is unchecked or off a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value in usec c Press ENTER to confirm the entry Programming Site Data 4 25 April 2009 Entering Skan Measure Parameters cont Pressing the W key highlights the Advanced prompt To enter advanced parameters for the Skan Measure modes press ENTER The screen now appears similar to Figure 4 11 below In each case to enter a value a Press ENTER to enter the text box b Use the numeric keys to enter the value c Press ENTER to confirm the entry Advanced Signal Setup Skan Meas of Shifts T Window cycles R Window cycles Meas Window cycles Noise Window Width Noise Window Offset cycles Figure 4 11 The Advanced Skan Measure Window 5 The first prompt the number of shifts corresponds to the actual number of transmits per cycle the number of signals added together in one direction to produce an averaged signal for one interrogation of the fluid It need only be changed if the environment is very noisy or the acoustic signal is weak The default value is 3 and values from 0 to 10 are acceptable 4 26 Programming Site Data April 2009 Entering Skan Measure Parameters cont 6 The next prompt enables you to reset the size o
171. nu Maps A oa Count Correlate of Peak 80 SkanT Offset M gt S Switch Limit Meas Delta Advanced Figure 4 10 The Skan Measure Setup Option 4 24 Programming Site Data April 2009 Entering Skan Measure Parameters cont 1 The first prompt asks for the Percent of Peak which is used to calculate the transit times and Delta T The default value is 80 and values from 1 to 100 are acceptable a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm the entry 2 The next prompt asks for Skan T Offset a time measurement offset that compensates for any shift resulting from cross correlation The default value is 12 6 usec and values from 500 to 500 usec are acceptable a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm the entry 3 The next prompt M gt S Switch causes the meter to switch from Skan to Measure Mode when Delta T is less than the M gt S Switch value The default value is 5 0 usec and values from 0 to 250 usec are acceptable Note Do not change this value without consulting GE Sensing If you wish to use Skan only set the M S Switch to a value of 0 a Press ENTER to enter the text box b Use the numeric keys to enter the recommended value c Press ENTER to confirm the e
172. o Figure 9 19 below Signal Error Limits Min Max Signal 10 72 Velocity 22 58 22 56 Amplitude 14 34 Sound Speed 20 Acceleration 4 572 Figure 9 19 The Signal Error Limits Option 1 The first prompt asks for the minimum and maximum limits for the transducer signal received by the PT878GC The default values are 10 for the minimum and 72 for the maximum The El LOW SIGNAL error message appears if the signal strength falls below the limit programmed here To enter the minimum signal a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your entry 9 32 Servicing the PT878GC April 2009 Setting Error Limits cont d Press the P arrow key to move to the maximum signal box and repeat steps a b and c e Press the 4 arrow key to return to the minimum signal box and the W key to move to the next limit 2 The next prompt calls for the low and high velocity limits The E3 VELOCITY RANGE error message appears if the velocity falls outside these limits Repeat the steps in Step 1 on the previous page to enter the desired limits 3 The third prompt calls for the low and high limits for the amplitude discriminator The discriminator measures the size of the transducer signal sent from the PT878GC If the signal falls outside these limits the E5 AMPLITUDE error message appears Re
173. o confirm the entry e Ifyou select Saturated Steam The prompt asks for the Saturated Steam input Press ENTER scroll to either Temperature or Pressure and press ENTER e Ifyou select Static Density The prompt asks for the Static Density value Press ENTER to open the text box enter the appropriate value and press ENTER to confirm the entry Pressing the A key returns the meter to the Mass Flow prompt and then to the Mass Flow tab To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Site Data 4 23 April 2009 Entering Skan Measure Parameters IMPORTANT Do not change the Skan Measure parameters unless recommended by GE Sensing If you select one of the Skan Measure modes in the Measurement mode window in the Signal Setup option see page 9 24 the PT878GC requires you to set up the appropriate parameters You can enter this option in either of two ways From the Program Menu scroll to the Skan Measure option and press ENTER or e From the Measurement Mode window page 8 13 select the method press ENTER press the W key to reach the Skan Measure Setup prompt and press ENTER again In either case the screen appears similar to Figure 4 10 below To step through each parameter press the W key Refer to Figure A 6 on page A 6 of Appendix A Me
174. oblems A S alti na st pokes eee adhe eet dete 10 9 E 10 9 PIPG aise eS al ee a nas La ee aed 10 10 TRONSGUCErS iie becca heinta d der add a 10 11 Program MOM Us caren cea at ido ida 4 1 Men MG Di cis Ree ac es ha gig eae aan A 4 PT878GC FeOtures Ot it a Po eae Boe ee 1 1 E Becher 2 12 Powerin AAA A O Mian a ait 2 7 SE is la dala du Roe te ne ad ok 2 10 PTI878GC BOOOddEr cesado bead sae code td eh eee 9 43 April 2009 Index cont R RON Ys Bee easel ae id MGR Eo he Pa Oe ead 11 2 eala e aeie EA EET iaa iaa 11 2 ea a E E I a 1 4 Repeto Oi x Sow a ia in ETA tee Be S 11 2 Reports OPM coloso ro ease eos erse i 9 3 9 4 Reports PritiO io ccoo catas cinta E 8 9 3 9 4 Reverse Total Resetting vinci ias 7 18 Reynolds Correction ENterinQ o 0oooooooooococcroo eee 4 50 RS232 to nadaa o o tas pa ees 11 8 10 April 2009 Index cont S Sampling Waves nia A 9 40 Schedule for Pipe Dimensions 0 00 0 cece eee eee 4 9 Screen Deser pto N acne eck e ek TEAT eae ea Te ce 2 10 orne Hel Ps occur to Seaside o ado eae 2 14 Service Menu Menu MID E Meee alee A 11 Service Menu Entering o oooooocoooooccoorrorr o 9 2 Setting up PC for Flash Update oooocoooooooommmm 9 46 Signal INVERSION seas a Sect E nee ces e 9 18 9 31 Signal Parameters Setting Up a s easan eee cece ee eee 9 25 Signal Path Entera 4 15 Signal Setup Option 6 0 eens 9 25 Signal Applying a Stored a an annuu
175. oblems and pipe problems Read the following sections carefully to determine if such problems exist Gas Problems Most gas related problems can be solved by proper design of the flowmeter installation and the proper choice of transducer frequency Contact GE Sensing if you cannot solve a gas related problem If the physical installation of the system meets the recommended specifications it is possible that the gas itself may be preventing accurate flow rate measurements The gas being measured must meet the following requirements 1 THE GAS MUST BE HOMOGENOUS SINGLE PHASE AND RELATIVELY CLEAN Although a low level of entrained particles may have little effect on the operation of the TransPort excessive amounts of solid or liquid particles will absorb or disperse the ultrasound signals This interference with the ultrasound transmissions through the gas will cause inaccurate flow rate measurements In addition temperature gradients in the gas flow may result in erratic or inaccurate flow rate readings 2 THE GAS MUST NOT EXCESSIVELY ATTENUATE ULTRASOUND SIGNALS Some gases i e high purity carbon dioxide hydrogen helium etc readily absorb ultrasound energy In these cases an E1 will appear on the screen to indicate that the ultrasonic signal is insufficient for reliable measurements Diagnostics and Troubleshooting 10 9 April 2009 Fluid Problems cont 3 THE GAS SOUND SPEED MUST NOT VARY EXCESSIVELY The Tra
176. olume or Mass Flow options the screen displays different options as shown in Figure 4 17 below Input A Y Input B Function Pressure Label Pressure Units Psia Zero 0 Psia Span 100 Psia Figure 4 17 The Analog Inputs Option Window with the Standard Volume Option Activated 1 The screen displays the function pressure or temperature label pressure or temperature and units selected in the Inputs form of the Standard Volume option see page 4 20 You cannot change these parameters in this form Press the V key to step through these parameters 2 The first prompt asks for the zero input value a Press ENTER to enter the text box b Use the numeric keys to enter the desired value c Press ENTER 3 The final promp a Press ENTER to confirm the entry t asks for the span input value to enter the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm the entry Programming Site Data 4 37 April 2009 Entering Analog Inputs in the Standard Volume or Mass Flow Option cont You have completed entering parameters in the Analog Inputs option To confirm the entries and return to Operate mode press F3 OK The PT878GC returns to Operate Mode To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC
177. ont 2 The next prompt asks if you want to send a specific number of pulses Press ENTER to select or deselect the pulse option Note Jf you do not select this option pressing the V key returns the meter to the Transmit Code prompt 3 The next prompt asks how many pulses from 0 to 16 you wish to send a Press ENTER to open the drop down list b Use the W or A arrow keys to scroll to the recommended number c Press ENTER to confirm your selection 4 The final prompt signal inversion enables you to invert the transducer signal Signal inversion may be necessary if your readings show unusual jitter or for certain unusual combinations of pipe and fluid or pipe and lining Signal inversion should be off unless you have received other instructions To change its status use the 4 and P arrow keys to move to the appropriate radio button and press ENTER You have completed entering data in the Signal Setup option e Press F2 Cancel to return to Operate Mode without confirming the changes Press F3 OK to confirm the new data and return to Operate Mode Servicing the PT878GC 9 31 April 2009 Setting Error Limits The Error Limits option enables you to set limits for an incoming signal When the signal falls outside the programmed limits an error indication appears To enter this option scroll to the Error Limits entry on the Service Menu and press ENTER The screen appears similar t
178. ont Edge of Holder Bracket Figure 3 17 Lining up the First Bracket 4 Install the transducer dummy block to verify the circumferential and axial location Center the indicator line on the block to line up with the scribed mark see Figure 3 18 below Figure 3 18 Positioning the CFG PI Holder Bracket 5 Loosen the transducer hold down screw and tighten the J hooks on the clamping fixture Be sure the bracket has not moved from its position Installing the Dampening Material Transducers and Fixtures 3 21 April 2009 Installing the Second Bracket with a Chain or Strap Note The following step requires the transducer spacing discussed on page 3 7 1 Measure the spacing from the zero point the point of circumferential origin Mark the spacing point with a crosshair on the opposite side of the pipe 180 from the zero point as shown in Figure 3 19 below Figure 3 19 Measuring and Marking Spacing 2 Carefully wrap the chain or strap around the pipe taking care not to twist it 3 Loosen the wing nuts up to the end of the J hooks Then hook the chain into the tightest links and firmly hand tighten the wing nuts 4 Line up the other edge of the CFG PI holder bracket with the scribe line and tighten the chain or strap as shown in Figure 3 20 below Mark on Opposite Scribe Line Rear Edge o Second Block Figure 3 20 Lining up the Rear Edge of the Bracket w
179. or message specifying the possible problem The TransPort also has a set of diagnostic parameters to help you find and remedy the problem In general troubleshooting may be necessary if the TransPort displays an error message the flow readings are erratic or you have other reasons to doubt the accuracy of readings for example readings do not agree with other flow measuring devices connected to the same process This section describes error messages diagnostic parameters and shows you how to isolate problems to one of the following areas e Electronics including programmed values Flowcell which includes the pipe and fluid e Transducers and cables Diagnostics and Troubleshooting 10 1 April 2009 Error Code Messages Error Code messages appear on the screen while you are displaying measurements When logs appear in graph form errors are indicated by a vertical gray bar at the point of error When they appear in a spreadsheet format errors are indicated by their number in the last row called Error The Error Code messages are only general descriptions of the possible problems Use Table 10 1 on page 10 3 to isolate and remedy the problem If you are unable to remedy the problem contact GE Sensing Note We suggest that in order to isolate the indicated problem more easily you obtain a test flowcell Contact GE Sensing for details 10 2 Diagnostics and Troubleshooting April 2009 Table 10 1 Error Messag
180. osition the mating half of the fixture over the threaded rods in the 9 o clock position Figure 3 7 below shows the two mounted halves Note Ifyou are using a V4 fixture with a 1 5 to 2 in pipe GE Sensing suggests removing the set screws and the mounting bracket rotating them and the transducer yoke 180 and replacing the bracket yoke and screws for a more secure fit Figure 3 7 Mounting the Two Halves of the Fixture 3 14 Installing the Dampening Material Transducers and Fixtures April 2009 Installing the Fixture cont The two fixture halves have measuring scales ensure that the scales are on the same side of the fixture so that both zeros start at the same origin as shown in Figure 3 8 below Figure 3 8 Fixture with Scale Origins Properly Aligned 3 Install the four nuts onto the threaded rods with the convex side of the nut facing the fixture Hand tighten the nuts on each V block evenly as shown in Figure 3 9 below Do not use a cross tightening pattern on the four installation nuts Figure 3 9 installing Nuts onto the Fixture Installing the Dampening Material Transducers and Fixtures 3 15 April 2009 Installing the Transducers 1 Apply a bead of couplant 6 mm 0 25 in wide along the entire length of each transducer face as shown in Figure 3 10 below Figure 3 10 Couplant on Transducer Face Note Do not slide the transducer with couplant along the surface of the pipe when mou
181. ox b Use the numeric keys to enter the recommended value c Press ENTER to confirm the entry 4 32 Programming Site Data April 2009 Entering Skan Correlation Parameters cont 2 Repeat step 1 to enter the maximum percentage of peak 3 The next prompt asks for the Percent of Peak which is used to calculate the transit times and Delta T a Press ENTER to enter the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm the entry 4 To select or deselect Measure Times only instead of both Skan and Measure times press ENTER at the Measure Only prompt Pressing the W key returns the meter to the Min Threshold entry and pressing the A key returns the meter to the Correlate tab To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Site Data 4 33 April 2009 Entering Analog Inputs The Analog Inputs option enables you to specify parameters for general purpose or standard volume inputs To enter the Analog Inputs option scroll to the Analog Inputs entry on the Program Menu and press ENTER If you have not enabled the Standard Volume Option see page 4 18 the screen appears similar to Figure 4 15 below To step through each parameter press the V key Refer to Figure A 6 on page A 6 of Appendix A Menu Maps Ente
182. pean Compliance Battery powered system complies with EMC Directive 89 336 EEC and transducers comply with PED 97 23 EC for DN lt 25 Specifications 11 5 April 2009 Clamp On Ultrasonic Flow Transducers Temperature Rangels Standard 40 to 130 C 40 to 266 F Optional overall range 40 to 230 C 40 to 446 F Transducer Materials Stainless steel and plastic Fixture Materials Anodized aluminum blocks with stainless steel rod chain or strap Mountings Portable gas transducer clamping fixtures in polycarbonate carrying cases e PCFG 1 for pipes smaller than 12 in 300 mm in diameter e PCFG 2 for pipes larger than 12 in 300 mm in diameter e PCFG 3 for pipes between 3 4 in 20 mm and 24 in 610 mm in diameter Mounting Couplant CPL 16 Area Classifications Standard General purpose Optional Weatherproof Type 4 IP65 e Optional Explosionproof Class I Div 1 Groups C D e Optional Flameproof e II 2 G EEx md IIC T6 T3 certification pending Note PT878GC electronics are designed for general purpose areas 11 6 Specifications April 2009 Transducer Cables e Standard One pair of LEMO coaxial transducer connectors with 25 ft 8 m cables Optional 500 ft 152 m extension cables available for most transducers Specifications 11 7 April 2009 Thickness Gauge Option Transducer GE Sensing dual element transducer Pipe Thickness Range 0 05 to 3 in 1 3 to
183. peat the steps in Step 1 on the previous page to enter the desired limits 4 The fourth prompt asks for the acceptable limits for the sound speed based on conditions in your particular system The E2 SOUND SPEED error message appears if the fluid sound speed exceeds that entered in the Pipe option of the Program menu by more than this percentage The default value is 20 of the nominal soundspeed a Press ENTER to open the text box b Use the numeric keys to enter the desired percentage c Press ENTER to confirm your entry 5 The final prompt asks for the acceleration limit for detecting cycle skipping The E6 CYCLE SKIP ACCELERATION message appears if the velocity changes by more than this limit from one reading to the next a Press ENTER to open the text box b Use the numeric keys to enter the desired speed c Press ENTER to confirm your entry Servicing the PT878GC 9 33 April 2009 Setting Error Limits cont Note For the velocity and acceleration boxes the F1 softkey toggles between English and metric measurements Thus the key will always display the opposite measurement from that which is currently active Press F1 to display the measurement in the alternate format You have completed entering signal error limits Press F2 Cancel to return to Operate Mode without confirming the error limits or e Press F3 OK to confirm the new limits and return to Operate Mode 9 34 Servicing th
184. plate Confirmation Window The meter returns to Operate Mode with the new site name displayed in the upper left corner of the screen Creating and Managing Sites 5 5 April 2009 Opening an Existing Site If you want to return to a second site that you have previously saved first highlight the replacement site in the left window of the Site Manager Then press MENU to open the File Menu Scroll to the Open option and press ENTER The screen appears similar to Figure 5 6 below Site Manager Open Confirmation Open File DEFAULT Are You Sure Figure 5 6 The Open Site Confirmation Window Press F2 No to cancel opening the site and return to the current site or Press F3 Yes to open the site If you have changed the first site that is the one you are now closing by opening the second site the PT878GC asks if you want to save the changes to the first site Press F2 No to cancel the changes or e Press F3 Yes to confirm and save the changes The PT878GC returns to Operate Mode with the selected site displayed in the upper left corner of the screen 5 6 Creating and Managing Sites April 2009 Saving a Site You can save the current site in one of two ways From the Site Menu you can scroll down to the Save Now option and press ENTER or From within the Site Manager press MENU scroll to the Save option and press ENTER In either
185. press ENTER The window appears similar to Figure 8 9 below Log Manager Info AAA LOG State Finished 03 01 04 13 13 41 E 03 01 04 13 23 41 Pause All Logs Interval 1 d End All Logs View All Sites 03 01 04 13 23 21 1216 bytes 109568 bytes free Figure 8 9 The Log Menu in the Log Manager 8 14 Logging Data April 2009 Stopping Pausing a Log To stop a log that is currently pending or running 1 First select the log you wish to pause in the Log Manager shown in Figure 8 2 on page 8 4 2 Then open the Log menu scroll to the Pause option and press ENTER The PT878GC returns to the Log Manager which displays the highlighted log with Paused in the State line Restarting a Log To restart a paused log 1 First select the log you wish to restart in the Log Manager shown in Figure 8 2 on page 8 4 2 Then open the Log menu scroll to the Start option and press ENTER The PT878GC returns to the Log Manager which displays the highlighted log with a status of Pending or Running Ending a Log To end a log 1 First select the log you wish to end in the Log Manager shown in Figure 8 2 on page 8 4 2 Then open the Log menu scroll to the End option and press ENTER The PT878GC returns to the Log Manager which displays the highlighted log with a status of Finished The space not used by the finished log is freed for reuse
186. ps Note The Lining option is only available for clamp on transducers Transducer Pipe Transducer Pipe MECA Fluid Path Material WEW 0 4 Sound Speed 2000 m s Thickness O mm Figure 4 4 The Pipe Lining Window 1 The PT878GC first prompts you to select the pipe lining material a Press ENTER to open the drop down list of lining materials b Scroll to the appropriate material If you do not see your lining material on the list select Other c Press ENTER to confirm your choice Programming Site Data 4 11 April 2009 Entering Pipe Lining Parameters cont Note fyour pipe lining is not on the drop down list consult GE Sensing for further information 2 The program follows one of two paths a If you have selected a preprogrammed material the PT878GC automatically supplies the correct sound speed and you proceed to step 3 b If you have selected Other the meter prompts you to enter the sound speed Press ENTER Use the numeric keys to type the known sound speed in the text box and press ENTER to confirm the choice 3 The meter now asks for the lining thickness Press ENTER Use the numeric keys to enter the known value in the text box and press ENTER to confirm your entry Pressing the W key returns the meter to the Lining tab To confirm the entries and return to Operate mode press F3 OK To leave the
187. pt Scroll to the desired output unit 5 Press F3 OK to confirm your selection 6 You can repeat this procedure for up to 12 different parameters 7 When you have finished press F2 Cancel to cancel the entries or F3 Activate to confirm the entries and start the log If you started the log from the New Log option the PT878GC returns to Operate Mode if you started it from within the Log Manager the meter returns to the Log Manager Logging Data 8 9 April 2009 Copying Cloning a Selected Log In the Clone Selected Log option you can copy the parameters of a particular log modify the parameters and start the copy To copy a log 1 First select the log you wish to copy in the Log Manager shown in Figure 8 3 on page 8 4 2 Then open the File menu scroll to the Clone Selected Log option and press ENTER 3 The Create New Log window shown in Figure 8 4 on page 8 6 opens Follow the procedure discussed on page 8 5 to create a log name and press F3 OK to confirm the name 4 The General Log Format window shown in Figure 8 5 on page 8 7 opens Follow the procedure discussed on pages 8 7 and 8 8 to change any settings Note Unless otherwise specified the cloned log always begins at the current date and time and ends after the period of time used by the original log 5 If you wish scroll to the Measurements window shown in Figure 8 6 on page 8 8 and follow the procedure discussed on p
188. ptions window opens on the Display tab as shown in Figure 7 5 on page 7 12 Press the V key three times to reach the Backlight Off text box 3 Then press ENTER to enter the box Use the numeric keys to enter the number of minutes that the backlight remains on from 0 to 60 Press ENTER to confirm the entry To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Note You can turn the backlight on or off at any time by pressing the power switch for 1 second 7 14 Programming Meter Settings April 2009 Changing Communications Parameters On occasion you might need to change the parameters by which the PT878GC communicates with a PC over the wireless infrared interface To check or change these parameters 1 From the Meter menu scroll to the Communications entry and press ENTER The Communications window appears similar to Figure 7 6 below Node ID Comm Interface IrDA 8 IR 232 Baud Rate 9600 bps Parity None Stop Bits 8 1 O2 Data Bits C7 8 Figure 7 6 The Communications Window 2 The first prompt asks for the node identification number which can be any number from 1 to 240 IMPORTANT Do NOT change the node ID unless instructed by GE Sensing a Press ENTER to open the text box b Use the numeric keys to ent
189. put tab and the P arrow key to move to the Input tab Press F2 Cancel to return to Operate Mode without confirming the changes Press F3 OK to confirm the new data The PT878GC returns to Operate Mode 9 22 Servicing the PT878GC April 2009 Calibrating Inputs To open the Inputs window press the arrow key and press ENTER The screen appears similar to Figure 9 15 below Note Calibrating the analog inputs requires use of a current source Calibrate Test I O Analog Output Analog Input Input A Low 4 High 20 Calibrate Figure 9 15 The Inputs Window in the Calibrate Option 1 Press the V arrow key to enter the window 2 The first prompt asks you to select the input a Press ENTER to open the drop down list b Use the W Jor A arrow keys to scroll to the desired output A or B c Press ENTER to confirm your selection 3 The next prompt asks for the value to which you want to set the low input 0 or 4 mA a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your entry Servicing the PT878GC 9 23 April 2009 Calibrating Inputs cont 4 Connect the current source to the input and set it to deliver the value entered in the previous step Press the arrow key to move to the Read box and then press
190. r 3 Installing the Dampening Material Transducers and Fixtures Since the PT878GC is specifically designed for gas measurement with clamp on transducers it requires the use of specially designed fixtures and dampening material to maintain the highest possible measurement accuracy GE Sensing supplies the CFG series of fixtures The V1 clamping fixture for pipes with diameters between 0 75 and 1 25 in 20 to 30 mm The V4 clamping fixture for pipes with diameters between 1 25 and 4 in 30 to 100 mm The V8 clamping fixture for pipes from 4 to 8 in 100 to 200 mm The V12 clamping fixture for pipes from 8 to 12 in 200 to 300 mm The PI clamping fixture for pipes from 12 to 24 in 300 to 600 mm Figure 3 1 on the next page illustrates the V series and PI fixture assemblies Complete the steps in the following sections to position and install the transducers fixtures and dampening material Installing the Dampening Material Transducers and Fixtures 3 1 April 2009 lt gt d gt CFG V1 CFG V12 Layout Wrap Dummy Block Figure 3 1 The V Series and PI Fixtures Choosing the transducer installation locations on the pipe is an important aspect of proper flow measurement Specifications assume a fully developed flow profile typically requiring 20 diameters upstream and 10 diameters downstream of straight pipe run In addition pipes 2 in and under require an installation location with a m
191. r a Calibration Factor return to the Reynolds Correction tab at the top of the Correction Factors option Press the P arrow key to reach the Calibration Factor window The window appears similar to Figure 4 26 below To step through each parameter press the W key Correction Factors Reynolds Correction Calibration Factor Factor Calibration Factor e On O Off K Factor Single O Table Meter K Factor 1 0000 Data Source Edit Table Figure 4 26 The Calibration Factor Window Programming Site Data 4 53 April 2009 Entering a Calibration Factor cont 1 The first prompt asks if you wish to enable the calibration factor a Use the lt d and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection 2 The next prompt asks if you want a single K factor or a table of K factors a Use the lt d and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection 3 The following steps depend on whether you select a single value or a table If you entered Single The prompt asks for a value a Press ENTER to open the text box b Use the numeric keys to enter the recommended value Generally if you have enabled the Reynolds Correction factor the correction factor should be set to 1 00 Otherwise the typical factor is between 0 5 and 2 00 c Press ENTER to confirm your
192. ream signal Xmit Corr Up Displays raw upstream signal N A N A correlated with transmit signal Xmit Corr Dn Displays raw downstream sig N A N A nal correlated with transmit signal Cross Corr Displays transmit upstream N A N A signal correlated with transmit downstream signal Signal up Displays the signal strength 50 80 lt 50 for the upstream transducer Signal dn Displays the signal strength 50 80 lt 50 for the downstream transducer Qup Displays the signal quality for 300or between the upstream transducer higher 100 Diagnostics and Troubleshooting 10 7 April 2009 Table 10 2 Diagnostic Parameters cont Diagnostic f Parameter Displays Bad Qdown Displays the signal quality for between the downstream transducer 100 Norm Factor Displays the normalization lt 0 85 factor Threshold Up Displays the Percent of Peak for the upstream transducer Set to 40 by default Threshold Dn Displays the Percent of Peak for the downstream trans ducer Set to 40 by default Displays the signal noise ratio for the upstream transducer Displays the signal noise ratio for the downstream trans ducer Voltage Displays remaining battery voltage Time Displays estimated battery Remaining time remaining 10 8 Diagnostics and Troubleshooting April 2009 Flowcell Problems Flowcell problems fall into two categories gas pr
193. ries and return to Operate mode press F3 OK To leave the window without confirming the entries press F2 Cancel or the ESC key Programming Site Data 4 41 April 2009 Entering the Digital Output While resembling the Analog Output option the Digital Output option enables you to set up parameters necessary for a digital output To enter the option scroll to the Digital Output entry on the Program Menu and press ENTER The screen appears similar to Figure 4 20 below To step through each parameter press the W key Refer to Figure A 7 on page A 7 of Appendix A Menu Maps Function Pulse Totalizer Data Source Fwd Totalizer Fwd m Units Pulse Pulse Width Polarity Low High Figure 4 20 The Digital Output Window 1 The first prompt enables you to select the output function from five choices e Off e Pulse Totalizer e Frequency e Test Points e Gate Input 4 42 Programming Site Data April 2009 Entering the Digital Output cont a Press ENTER to open the drop down menu b Scroll to the desired function c Press ENTER to confirm your selection Note Ifyou select Off you will not be able to access any other parameters in this option If you select Test Points or Gate Input the program goes at once to Step 4 2 The next prompt asks you to select the data source for the digital output from a numb
194. ring General Purpose Analog Inputs Analog Input InputA Input B Function General Purpose Label Units Zero 0 Span Psia Figure 4 15 The Analog Inputs Option Window 1 The first prompt asks you to select whether the desired function is off or general purpose a Press ENTER to open the drop down menu b Scroll to the desired response c Press ENTER to confirm your selection Note Ifyou select Off you cannot select any other prompts in this window 4 34 Programming Site Data April 2009 Entering General Purpose Analog Inputs cont 2 The next prompt asks you to create a label for the input The label corresponds to the measurement type i e velocity or temperature while the units symbol corresponds to the measurement units i e feet sec or degrees F a Press ENTER to open the text creation window which appears similar to Figure 4 16 below B L V 5 lt b Note Figure 4 16 The Text Creation Window Use the four arrow keys to scroll to the desired letter or symbol and press ENTER to add the letter to the label Pressing SEL causes the screen to alternate between a set of upper case capital letters a set of lower case letters and a set of symbols Use all three screens to create a desired label Repeat this procedure for each letter or
195. roll to the appropriate selection c Press ENTER to confirm your choice 6 2 Displaying and Configuring Data April 2009 The Format Option cont 2 The second step asks you to choose the number of decimal places to be displayed Available choices range from 0 to 4 places a Press ENTER to open the drop down list b Scroll to the appropriate number c Press ENTER to confirm your choice To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries press F2 Cancel or the ESC key Displaying and Configuring Data 6 3 April 2009 The View Option The second option View allows you to select the presentation of a parameter in one of three formats numeric line graph or bar graph 1 From the Display Menu press the P key once to reach the View option and then press ENTER 2 A drop down menu shows the three formats Scroll to the appropriate selection 3 Press ENTER to confirm your selection The screen immediately displays any changes For example if you have changed the first parameter to a line graph the screen appears similar to Figure 6 3 below ABC SIT 2004 11 30 09 53 AM Velocity ft s Signal dB 12 2 0 6014 32 A 12 2 10 Seconds Delta T ns Volume l s 0 10 0 0 EO No Errors Figure 6 3 Screen After Format Change 6 4 Displaying and Configuring Data April 2009
196. rotocol Note For Windows NT4 0 check that the QuickBeam software available through the path C Program Files QuickBeam Suite is running and that the IR beam on the PT878GC has access to the IR sensor connected to the PC port 2 Highlight the desired log in the left window of the Log Manager 3 Press MENU scroll to the Transfer option and press ENTER The screen shows a message indicating that the PT878GC is searching for an infrared device If the sensor finds no device a window appears with this message and asks if you want to try again If it finds a device it sends another message indicating that it is uploading the log The meter also displays a message if the upload fails When the upload is complete the meter returns to the Log Manager The PC holds the transferred log in a C Ir_Inbox folder C Ir_Inbox for Windows NT C My Received Files for Windows 98 or Desktop for Windows 2000 You can open the file on the PC using the PanaLog Viewer available at www gesensing com and export it in Microsoft Excel format Note You cannot download log files back to the PT878GC Logging Data 8 13 April 2009 The Log Menu The Log Menu allows you to pause restart or end any or all logs that are currently pending or running However you cannot restart any finished logs even if they were finished before the programmed end time To open the Log Menu in the Log Manager press MENU Scroll to the Log option and
197. selection You have completed entering data for a single Calibration Factor If you entered Table The menu asks first for the data source and then for the entry of values into the Correction Factor table a Press ENTER to open the Data Source window The Select Measurement window Figure 4 19 on page 4 40 appears 4 54 Programming Site Data April 2009 Entering a Calibration Factor cont b Enter the desired measurement and units as described on page 4 40 c Press F3 OK to confirm your selection 4 The prompt then asks if you wish to edit the K factor table a Press ENTER to open the table which appears similar to Figure 4 27 below Edit KFactor Table 0 Data Source KFactor Figure 4 27 The KFactor Table b Use the numeric keys to enter the first value for the data source and press ENTER to confirm the entry c Press the P key to move to the KFactor column Use the numeric keys to enter the corresponding value and press ENTER to confirm the entry d Repeat steps b and c for the remainder of the table e When you have completed entering values press F3 OK to confirm the table and return to the Correction Factors window Programming Site Data 4 55 April 2009 Entering a Calibration Factor cont You have completed entering data for correction factors To confirm the entries and return to Operate Mode press F3 OK To leave
198. sing the Screen and Keypad The essential features for operating the TransPort are the screen and keypad Although these features are common on portable instruments the PT878GC design offers unique features to simplify and speed operation Screen The primary function of the screen is to display information in order for you to accurately and easily take measurements The TransPort screen consists of seven parts see Figure 2 6 below Current Status Bar Battery alternates with Status Site a Menu Bar DEP ULT 2000 11 30 0953 AM Velocity ft s Signal dB 32 0 00 le 0 10 E0 No Errors A h Error Messages ee a Tray Function Keys Figure 2 6 The PT878GC Screen in Operate Mode The top line of the screen is the status bar which normally displays the time date and current site However when you press MENU the menu key the Menu Bar replaces the status bar 2 10 Initial Setup April 2009 Screen cont The middle of the screen is the work area which displays the measured parameters numeric measurements and both bar and line graphs When you enter a selection on the Main Menu discussed in Chapter 4 Programming Site Data this area displays menu prompts A line at the bottom of the area also displays error code messages which are described in more detail in Chapter 10 Diagnostics and Troubleshooting The system tray shown in Figure 2 6 on page 2 10 displays icons t
199. site and log files in the PT878GC while the window on the right displays information on the file highlighted in the left window 6 14 Displaying and Configuring Data April 2009 Managing Files The Drive Manager cont File Manager Transfer Info SYSLOG MET Refresh Delete TABLE MET FUNCTIO AAA LOG BBB LOG 03 15 04 10 39 20 Q LOG 91136 bytes free Figure 6 12 The File Manager Menu To transfer refresh or delete a file first be sure the file is highlighted in the window on the left Then press MENU and scroll to the appropriate option as shown in Figure 6 12 above Press ENTER The PT878GC then performs the desired action with the file e To refresh a file go to the next page e To transfer a file to or from a PC go to the next page e To delete a file go to page 6 19 Displaying and Configuring Data 6 15 April 2009 Refreshing a File You can refresh a file updating the display with the most current information in one of two ways Press F2 Refresh to refresh the highlighted file From the File Menu scroll to the Refresh option and press ENTER The updated information on the highlighted file appears in the window on the right Transferring a File to a PC To upload a log meter screen capture bitmap or site file to a PC 1 Check that the Communications option see page 7 15 has been set to the IrDA protocol Note For Windows NT 4 0 check t
200. sound speed the Thickness Gauge Setup option enables you to view or change five parameters Low Signal Threshold e Transducer Delay Signal Inversion e Noise Threshold Detection Threshold IMPORTANT The thickness gauge programming settings are entered at the factory You should not change them unless instructed by GE Sensing The Programming window appears similar to Figure 9 12 below Thickness Gauge Setup Low Signal Thresh 01 Transducer Delay 0 us Signal Inversion On 8 Off Noise Threshold 0 Detection Threshold 0 Figure 9 12 The Thickness Gauge Programming Window Servicing the PT878GC 9 17 April 2009 Programming the Thickness Gauge cont 1 Press the V arrow key to enter the window 2 The first prompt asks for the low signal threshold If the signal strength falls below this value a Low Signal message appears on the screen To change this value a Press ENTER to open the text box b Use the numeric keys to enter the provided value c Press ENTER to confirm your entry 3 The next value transducer delay represents the time the ultrasonic signal takes to travel from the meter to the pipe material surface To change this value a Press ENTER to open the text box b Use the numeric keys to enter the desired value c Press ENTER to confirm your entry 4 The signal inversion prompt enables you to invert the
201. splaying Log Data in Spreadsheet Form 8 22 THE SOrtIMOGNU sessions a n gy ea 8 23 Listing Logs DY NAME wes dens ene ee ered cee eet 8 23 Listing Logs in Chronological Order oo 8 23 Chapter 9 Servicing the PT878GC Entering the Service Menu 2 0 ccc cece cence neces 9 2 Printing REPO ci it ot 9 3 vill April 2009 Table of Contents cont Setting up the Thickness Gauge 6 ccc een ences 9 5 Measuring Pipe Wall Thickness 0 00 0 c cece cece cece eee 9 7 Entering the Material and Sound Speed 5 9 7 Measuring Thickness in Numeric Format 9 9 Displaying the Receive Signal in Graphical Format 9 10 Calibrating the Thickness Gauge Transducer 9 12 Calculating Velocity Pipe Material Sound Speed 9 14 Programming the Thickness Gauge 0 ccc eee ees 9 17 Displaying Diagnostic Parameters 00 00 c cece ee eae 9 20 Calibrating the Analog Output and ImputS o o 9 21 Calibrating the Analog Output 0 eee eee eee 9 21 Calibrating pulsatil as 9 23 Setting up Signal Parameters oooooooccccocccocccrcr roo 9 25 Setting up the Measurement MOde ooooooccccccccc 9 28 Setting Up Pulse Code Parameters oooocoocccocccoo 9 30 Setting Error Limits Srei ta o ai i i e E TEE E een ees 9 32 The TCSKODUON ld lilas Atlee aged aaa anr sed 9 35 Testing tH
202. ss the V key to reach the Frequency prompt and press ENTER b A drop down list of five frequencies opens ranging from 0 25 to 4 00 MHz Scroll to the frequency of your transducers and press ENTER 4 The next prompt asks for Tw the time delay This parameter is actually the time the transducer signal spends travelling through the transducer and cable The PT878GC calculates the flow rate by subtracting the time of the upstream and downstream signals so the time delay must be subtracted out for an accurate measurement GE Sensing supplies the time delay on a data sheet inside the transducer case a From the Frequency prompt press the P key to reach the Tw prompt and press ENTER b Use the numeric keys to enter the GE Sensing supplied time delay and press ENTER 5 When calculating the flow rate the PT878GC must take into account the wedge angle the angle of the ultrasonic transmission a From the Tw prompt press the V key to reach the Wedge Angle prompt and press ENTER b Use the numeric keys to enter the GE Sensing supplied wedge angle in degrees and press ENTER 6 The PT878GC must also take into account the wedge temperature a From the Wedge Angle prompt press the V key to reach the Wedge Temperature prompt and press ENTER b Use the numeric keys to enter the wedge temperature in degrees and press ENTER Programming Site Data 4 5 April 2009 Parameters for Special Transdu
203. stalling the Dampening Material Transducers and Fixtures 3 17 April 2009 Installing the Pl Fixture and Transducers The PI clamping fixture holds transducers on pipes from 8 to 24 in in diameter It comes with either a chain or strap depending on the selection made with the initial order from GE Sensing To install the fixture and transducers complete the following steps Surveying the Pipe 1 Measure the pipe circumference to an accuracy of 2 mm 1 16 in IMPORTANT Do not use a calculated value or a nominal value for the circumference 2 Tightly wrap the layout tape once around the entire pipe and line up the edges Using the tape as a template guide for marks mark scribe lines around the entire circumference of the pipe as shown in Figure 3 13 below a 3 Line up the zero scale of the layout tape at the desired location of the first transducer For a typical installation this point will be the 3 o clock position on a horizontal pipe Mark each of the two circumferential lines at the zero point Connect each of these marks using a straight edge for example the edge of the layout tape as shown in Figure 3 14 on the next page 3 18 Installing the Dampening Material Transducers and Fixtures April 2009 Surveying the Pipe cont Figure 3 14 4 To find the coinciding point on the opposite site of the pipe 180 away from each other divide the measured circumference by 2 and measur
204. t 1 From the Meter menu scroll to the Contrast entry and press ENTER The Display Options window opens on the Display tab as shown in Figure 7 5 below From the Format tab press the lt d key to move to the Display tab To step through each parameter press the W key Display Options META oa Darker Lighter Backlight Off 3 Min English Figure 7 5 Display Tab in the Display Options Window 2 Scroll to the Darker or Lighter box as desired 3 Press the ENTER button repeatedly until the screen has the desired contrast Note Ifyou find the screen has become too light or too dark scroll to the other box and press ENTER until you have adjusted the screen to your satisfaction 7 12 Programming Meter Settings April 2009 Adjusting the Contrast cont To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Meter Settings 7 13 April 2009 Setting Backlight Timeout By using the Backlight Timeout option you can set a specified time that the PT878GC backlight will remain on before turning itself off Automatic turnoff enables the PT878GC to conserve battery power To set the backlight timeout 1 From the Meter menu scroll to the Backlight entry and press ENTER The Display O
205. t erasing the program Press F3 OK to confirm that you wish to erase the program 4 The meter asks for confirmation Repeat the options shown in Step 1 above After the PT878GC reboots the screen appears similar to Figure 9 28 below GE Sensing PCI Loader v3 0 2 26 04 HW Rev3 Backup Battery OK Firmware CRC Valid Reload Flash via Infrared Yes No rOBEX No IrCOMM Figure 9 28 Flash Reloading Window 9 44 Servicing the PT878GC April 2009 Updating Software Via IrOBEX cont 5 The meter now asks if you wish to reload the flash memory via the infrared communications port Press F1 Yes to begin reloading via OBEX or e Press F2 No to stop the reloading procedure Be sure the infrared sensor on the meter has a clear path to the infrared adapter on the PC Now return to the PC 6 You now have two options In Windows Explorer browse to the file you wish to send Select and right click on 1t Select Send To Infrared Recipient or Nearby Computer or QuickBeam if QuickBeam has been installed Open the Infrared Transfer Application My Computer Infrared Recipient click on Send Files and select the files you wish to send In either case a window displays the status of the file upload Servicing the PT878GC 9 45 April 2009 Updating Software Via IrCOMM Note While Windows 95 98 98SE and NT with QuickBeam support IrCOMM Windows 2000 a
206. t 4 and P keys to scroll to the appropriate radio button 4 50 Programming Site Data April 2009 Entering Reynolds Correction cont b Press ENTER to confirm your selection Note fyou disable Reynolds Correction you will not be able to enter any other values in this window 2 If you enable Reynolds Correction you will also need to enter the Kinematic Viscosity of the gas available in the brochure Sound Speeds and Pipe Size Data 914 004 The next prompt asks if you wish to enter the Kinematic Viscosity as a single number or as a table of values a Use the lt d and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection 3 The following steps depend on whether you select a single value or a table for Kinematic Viscosity If you entered Single The prompt asks for a kinematic viscosity value a Press ENTER to open the text box b Use the numeric keys to enter the known value from Sound Speeds and Pipe Size Data c Press ENTER to confirm your selection You have completed entering data for a single Kinematic Viscosity factor If you entered Table The menu asks first for the data source and then for the entry of values into the Reynolds Correction table This procedure allows the PT878GC to estimate Kinematic Viscosity from other measurements such as signal strength a Press ENTER to open the Data Source window The Select Measurement window Figur
207. the appropriate number c Press ENTER to confirm the entry 2 The next prompt displays the spacing of the transducers as calculated from the information entered a Record this number and use it to space the transducers Use Chapter 3 to assist in installing transducers on the pipe Press the V key to scroll to the next parameter b If necessary you can overwrite the spacing to match the actual physical spacing of the transducers Do not change the spacing by more than 10 from that calculated by the meter Press ENTER Use the numeric keys to enter the desired value and press ENTER to confirm the entry If you enter an invalid entry the PT878GC rejects the entry and displays an error message Note GE Sensing does not recommend using a spacing other than the one calculated by the PT878GC After you enter the spacing pressing the A key returns the prompt to the Traverses box and then to the Path tab at the top of the screen To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key 4 16 Programming Site Data April 2009 Entering the Standard Volume Mass Flow Parameters The Standard Volume Mass Flow option enables you to correct standard volumetric units for pressure and temperature as well as to disable or enable mass flow To enter this option scroll to the Std Vol M
208. the drop down list of available reports as shown in Figure 9 2 above Press the W Jor A arrow keys to scroll to the desired reports and press ENTER Then press F2 Print to print out the desired reports or press F3 Exit to leave the option and return to Operate Mode Figure 9 3 on the next page shows a typical printout of a drive report Servicing the PT878GC 9 3 April 2009 Printing Reports cont Bytes Free 797698 filename Site Files DEFAULT SIT 01 09 17 MINILOOP SIT 7016 01 09 19 WETTED SIT 7003 01 09 25 STC_2MHZ SIT 6973 01 08 20 GINEX SIT 6372 01 09 20 GINST SIT 6369 01 08 20 9 4 2MHZWET SIT 6982 01 08 26 5O00KCWET SIT 6255 01 08 26 SVIEW SIT 6226 01 09 26 1MHZWET SIT 6181 01 09 26 AMHZCLMP SIT 6209 01 09 26 Log Files LOGO1 LOG 161782 01 09 26 Meter Configuration Files SYSLOG MET 5506 01 08 26 GLOBAL MET 1500 01 09 25 1 Figure 9 3 Printout of a Typical Drive Report Servicing the PT878GC April 2009 Setting up the Thickness Gauge For greatest accuracy in flow applications the PT878GC can measure pipe wall thickness using an optional thickness gauge transducer instead of relying on the nominal pipe wall thickness In Thickness Gauge mode the PT878GC does not measure flow but it can determine the thickness of most standard metal and plastic pipe materials over a range from 0 05 to 3 in 1 3 to 76 2 mm Figure 9 4 below illustrates use of the optional thi
209. the hand to press it onto the pipe see Figure 3 30b below Figure 3 30 Applying the DMP 3 Material Installing the Dampening Material Transducers and Fixtures 3 31 April 2009 Installing DMP 3 Compound with All Fixtures cont 6 Spread the DMP 3 material so that it covers the whole area under the fixture to a thickness of about 0 25 in 6 4 mm as shown in Figure 3 3 1a below Figure 3 31 Spreading the DMP 3 a and Reinstalling the Fixture b 7 Position the transducer yokes to the correct spacing and reinstall the fixture around but not on the DMP 3 material as shown in Figure 3 31b above 8 Remove the DMP 3 material from the transducer locations Figure 3 32a below A T a b Figure 3 32 Clearing DMP 3 from the Transducer Location a and Installing the Transducers b 9 Apply the couplant to the transducers and install the transducers onto the pipe Note f the measurement point is near a flange or weld apply DMP 3 between that structure and the fixture as well 3 32 Installing the Dampening Material Transducers and Fixtures April 2009 Installing the PDJ Dampening Jacket If the pipe temperature is over 150 F you must use the PDJ pipe dampening jacket with preapplied DMP 3 As the dampening material dries out over several hours after installation its effectiveness increases The jacket is available in standard pipe sizes from 4 to 12 in 100 to 300 mm 1 Remove any insulation
210. the name with underbars To download a site or meter file from a PC to a PT878GC 1 Check that the Communications option see page 7 15 has been set to the IrDA protocol Note For Windows NT 4 0 check that the QuickBeam software available through the path C Program Files QuickBeam Suite is running and that the IR beam on the PT878GC has clear access to the IR sensor connected to the PC port 2 You can send the file in one of two ways e Click on the desired file and drag it onto the rocket button in the QuickBeam window as shown in Figure 5 14 below Y QuickBeam File Send Options Help Figure 5 14 The QuickBeam Window Open the Send menu in the QuickBeam window enter the Files or Files on Clipboard option scroll to the desired file and click Send Creating and Managing Sites 5 15 April 2009 Transferring a File from a PC to the PT878GC cont QuickBeam opens a window indicating that it is downloading the file If you close and reopen the Site Manager the file appears as one of the listed sites Note While sending or receiving files the PT878GC continues to perform measurements but at a slower rate than normal 5 16 Creating and Managing Sites April 2009 Listing Files by Name If you want to list your files alphabetically by site name within the Site Manager press MENU to open the File Menu Then press the gt arrow key twice to scroll from the File Menu to the Sort Menu shown in Fi
211. the previous prompt Press the W or A keys to scroll to the appropriate number or scroll to Special for a special application transducer To speed scrolling you can press the P key to scroll down by a page or the 4 key to scroll up by a page c Press ENTER to confirm your selection The program now varies depending on whether you have selected preprogrammed or special transducers If you have selected a transducer from the list of preprogrammed shear clamp on transducers 301 to 315 the PT878GC comes programmed with the needed parameters You only need to enter the wedge temperature a From the Wedge Angle prompt press the V key to reach the Wedge Temperature prompt and press ENTER b Use the numeric keys to enter the wedge temperature in degrees and press ENTER Note For highest accuracy program the wedge temperature to the average of the gas and ambient temperatures For example if the gas temperature is 350 the wedge temperature is 350 70 2 210 F Pressing the V key thus returns the meter to the Transducer tab at the top Go to page 4 7 to continue programming e However if you have selected a special application transducer turn to the next page 4 4 Programming Site Data April 2009 Parameters for Special Transducers 3 The prompt asks for the transducer frequency to transmit a voltage at a rate to which the transducer can respond a From the Transducer prompt pre
212. the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key In either case the meter returns to Operate Mode 4 56 Programming Site Data April 2009 Chapter 5 Creating and Managing Sites The PT878GC can store site data in files for current and future access To learn how to program setup data refer to Chapter 4 Programming Site Data After you answer the necessary questions simply save the information to a site file The Site Manager option then enables you to recall rename print transfer or delete site files as needed To open the Site Menu press the MENU key at the lower right of the PT878GC keypad The Menu Bar replaces the Status Bar at the top of the screen Then press ENTER The screen now appears similar to Figure 5 1 below While following the programming instructions refer to Figure A 2 on page A 2 of Appendix A Menu Maps Program Meter Logging Service Manager Signal dB Save Now 1 View 32 2 Views E 3 Views 4 Views Volume I s rive Manager FKeys About 0 0 E0 No Errors Figure 5 1 The Site Menu in the Main Menu Creating and Managing Sites 5 1 April 2009 The Site Manager From the Site Menu press ENTER to open the Site Manager The screen appears similar to Figure 5 2 below Site Manager MICA Site Sort DEFAULT Info DEFAULT SIT New Site CURRENT SITE 03 04 04 14 51 10 51
213. tings for COMM 4 Installing New Software To begin the loading procedure scroll down to the Flash Update entry in the Service Menu and press ENTER The screen appears similar to Figure 9 30 below Update Flash WARNING This will erase the instrumentation coding Choose Cancel to exit or OK to continue Figure 9 30 The Flash Update Option Servicing the PT878GC 9 47 April 2009 Installing New Software cont 1 As shown in Figure 9 30 on the previous page the Flash Update option erases all instrument coding e Press F2 Cancel to return to Operate Mode without erasing the program e Press F3 OK to confirm that you wish to erase the program 2 The meter asks for confirmation Repeat the options shown in Step 1 above The screen on both the PC and the PT878GC now appears similar to Figure 9 31 below GE Sensing PCI Loader v3 0 2 26 04 HW Rev3 Backup Battery OK Firmware CRC Valid Reload Flash via Infrared Yes No rOBEX No IrCOMM Figure 9 31 Flash Reloading Window 3 The meter now asks if you wish to reload the flash memory via the infrared communications port e Press F3 Yes or C on the PC keyboard to begin reloading via IrCOMM or Press F2 No or ESC on the keyboard to stop the reloading procedure 4 Be sure the infrared sensor on the meter has a clear path to the infrared adapter on the PC and r
214. tive prompt select Contact Closed 2 At the Mode prompt select Manual and press ENTER The stopwatch icon see page 2 11 appears in the system tray To start or stop the function press the minus key on the keypad You have completed entering parameters in the Digital Output option To confirm the entries and return to Operate mode press F3 OK To leave the window without confirming the entries press F2 Cancel or the ESC key Programming Site Data 4 45 April 2009 Entering User Functions User functions enable you to perform mathematical equations on each measurement You can also use any parameter in the meter to calculate a different parameter To enter the User Functions option scroll to the User Functions entry on the Program Menu and press ENTER The screen appears similar to Figure 4 21 below To step through each parameter press the V key Refer to Figure A 7 on page A 7 of Appendix A Menu Maps Set User Function Function Label Units Sym Dec Figure 4 21 The User Functions Window 1 The first prompt asks you to select the function number 1 through 8 a Press ENTER to open the drop down menu b Scroll to the desired function number User F1 User F2 etc c Press ENTER to confirm the entry 4 46 Programming Site Data April 2009 Entering User Functions cont 2 The next prompt asks you to create a
215. to recharge non rechargeable batteries If you need to replace the rechargeable batteries use 5 C size NiCad high energy rechargeable batteries GE Sensing Part Number 200 058 or 3 0 Ahr NiMH batteries part number 200 081 To replace the batteries remove the rubber boot open the panel located on the back of the PT878GC unit disconnect the batteries and replace with new ones see Figure 2 3 below O o 4o EJ Battery Location Behind Panel Figure 2 3 Rear View of PT878GC To further extend the battery power on the PT878GC the GE Sensing Part 705 1283 power pack option uses 6 AA alkaline batteries 2 6 Initial Setup April 2009 Powering On and Off To operate the PT878GC the power cord must be plugged into line voltage or the battery must be charged as described previously IMPORTANT For CE compliance the PT878GC is classified as a battery powered device and cannot be used with the AC adaptor To turn the meter on press the red button in the upper right hand comer of the keypad Immediately upon power up the PT878GC emits a short beep and displays a PCI Loader message It then validates the instrument programming and then displays the GE Sensing logo and the software version and emits a long beep If the meter fails any of these tests contact GE Sensing Caution If the meter fails the backup battery test you must send the unit back to the factory for a battery replac
216. tors Entering 0 cece eee eee eens 4 50 COU PIC eter ie Fe Boies a ns te sat a a A aS tl eoat 11 6 COuUplaNt USING eaten ibas 3 16 3 23 3 34 Customizing SoftkeyS 0 0 cece eee cece eee eens 6 11 April 2009 Index cont D Dampening Material uuena ccc cece eee ee 3 25 Data ACQUIS Oi Pink ead ware os 1 4 Data LOGGING iia Ra 11 5 Data Sources Changing 0 e cece eee eee eee 6 7 6 8 Date and TIME Options suis bad eel ead dae ghee et 7 9 Date Entering ui la eee Ve ha 7 7 Date Time Format Changing 0 cece eee 7 9 Defaults Resetting to 0 ccc cence eee 9 42 Delta TOS tae rely tina yoke gelatine a ttl eto edo ele 9 26 Description Ele ONIS redactada tet dd Sch libata 1 4 Error Messages ita a da 10 2 Howe nan carn ahaa 1 3 Key Pd AA A IES 2 12 A dilath le dled tats de alt odie E EE 2 12 Ser di raros iria ete nee rro t tae va 2 10 O 1 3 Detection Threshold s aaseter o aa ri A ay 9 19 Diagnostic Parameters DisplayinQ 00ooooommm 9 20 A AN 10 1 10 6 Error Messages esee ee 10 2 Diagnostics Option 0 cee a a e e a eee eens 9 20 Digital Interfaces toos Sake eae ah ed 11 5 Digital Output Option cocoa ias 4 42 DIMENSIONS aca canis Ae 11 4 DIN Schedule Applying 0 0 e eee cece rr 4 10 E AA ont she SORE EER ie hee eek 11 4 SM is Alene Bisse E cena AE EEE 2 10 Display FUCSIA Saket 11 5 Display Options lt lt toc a ii ad 7 9
217. ttery Form Status Fast Charge Run Time 250 Minutes Batt Voltage 5 78 Volts Fast Charge 3 Min Backup Battery OK Batt temp 27 7 C Part Number KEINTANO NOT Condition Battery Figure 9 25 The Battery Test Option The screen displays the current status Fast Charge On Charge Discharging or On Battery the time remaining for the PT878GC to run on the battery the time for the Fast Charge and the current condition of the backup battery 1 Ifyou wish to open the Part Number window press ENTER You can choose from a 1 8 Ahr NiCd battery part number 200 058 or a 3 0 Ahr NiMH battery part number 200 081 Scroll to the battery type you have installed and press ENTER 2 To condition the batteries press the ENTER key The Condition Battery window should now read Stop The status line should change to Discharging Updating the status could take up to 30 seconds 3 To stop the discharge cycle press the ENTER key and the Condition Battery window reappears The status now changes to On Charger 4 Press F3 OK to return to Operate Mode Servicing the PT878GC 9 41 April 2009 Resetting to Factory Default Parameters For various reasons you might wish to return the PT878GC to its original settings The Factory Defaults option enables you to return the meter to its preprogrammed default settings To enter the option scroll down to the Factory Defaults
218. tu rated Diagnostics and Troubleshooting Steam equa tions only Process temper ature and or pressure are outside valid limits of Steam Equations for mass flow Steam equa tions only Process temper ature is below the saturation temperature of steam for the process pres sure Adjust the pressure reading to within the range of 139 9685 kPa to 2242 9435 kPa or the temperature read ing to within the range of 373 1500K to 810 9278K Raise the system tem perature or lower the system pressure until all the water vapor izes 10 5 April 2009 Displaying Diagnostic Parameters As part of its measurement menu the PT878GC offers a list of diagnostic parameters to aid in troubleshooting in the event of flowcell transducer or electrical problems You can select any diagnostic parameter for display as a measurement as discussed in Chapter 6 on pages 6 7 and 6 8 Table 10 2 below shows all the available diagnostic parameters and ranges Table 10 2 Diagnostic Parameters Diagnostic i Parameter Displays Good Bad AT Displays Delta T or the differ N A Continuous ence between the upstream large fluctu and downstream transit times ations of 1 micro sec ond or more Amplitude Up Displays the value for the 20 28 lt 20 or gt 28 amplitude discriminator of the upstream transducer Amplitude Displays the value for the 20 28 lt 20 or gt 28 Down a
219. turn to Operate Mode press F3 OK To leave the window without confirming the entries and return to Operate mode press F2 Cancel or the ESC key Programming Site Data 4 21 April 2009 Entering Mass Flow Parameters To enter mass flow parameters in the Standard Volume Mass Flow option press the P arrow key until you reach the Mass Flow tab and then press ENTER to open the Mass Flow window The screen appears similar to Figure 4 9 below To step through each parameter press the V key Std Vol Mass Flow Mass Flow Enabled O Disabled Calculation Method Static Density Saturated Steam Input Temperature Static Density 1 02305 Kgs m3 Figure 4 9 The Mass Flow Tab in the Standard Volume Mass Flow Option 1 The first prompt asks if you want to disable or enable the Mass Flow option a Use the lt 4 and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection Note Ifyou select Disabled you cannot select any other prompt in this window 4 22 Programming Site Data April 2009 Entering Mass Flow Parameters cont 2 If you have enabled Mass Flow the next prompt asks for the calculation method Three options are available static density saturated steam and steam a Press ENTER to open the drop down menu b Scroll to the appropriate method for your application c Press ENTER t
220. ul the PT878GC returns to Operate Mode while the printer prints out the current screen To locate the screen capture with the To File option open the Drive Manager see page 6 14 The captured file is listed as Screen 0X bmp To transfer the file to a PC follow the instructions in Transferring a File to a PC on page 6 16 Programming Meter Settings 7 23 April 2009 Chapter 8 Logging Data A powerful and flexible feature of the PT878GC is data logging The meter enables you to choose up to 12 parameters to log You can also select the start time and date end time and date and time interval Logs can run one at a time or simultaneously Error and circular logs are also available The logged data is internally stored in battery backed up memory A fixed amount of memory is assigned to data logging The frequency of the time interval the length of the log run and the number of logs affect the amount of memory required for a particular log For example a log that records every 5 seconds will use up more memory than a log that records every 5 minutes for a given amount of time Once you make your data logging selections the PT878GC enables you to view the amount of memory left You may also stop logging or view logged data while or after data is logged This section describes How to enter the Logging Menu e How to set up a new log e How to view the data logger memory How to start stop or pause loggin
221. ures and general system and explains the theory of operation Overview The PT878GC is available in two models While the PT878GC 01 covers pipe sizes from 3 4 in to 12 in 20 to 300 mm the PT878GC 02 covers pipe sizes from 4 to 24 in 100 to 300 mm To identify your PT878GC refer to the label on the back of the electronics unit shown in Figure 3 2 on page 3 3 The flowmeter provides one linear 0 4 20 mA analog output of flow velocities or volumetric flow rate of clean dry gases measuring velocities from 1 to 120 ft sec 0 3 to 40 m sec along with one selectable frequency or pulsed totalizer output Figure 1 1 illustrates the PT878GC in use on a typical pipe along with the case for the PT878GC and accessories Figure 1 1 PT878GC in Use and in Case Features and Capabilities 1 1 April 2009 Overview cont The TransPort has the ability to store site data in files which can be accessed at a later time Within the Main Menu a set of forms windows asks you all the necessary setup information for a particular site Once you answer the necessary questions you simply save the information to a file The TransPort stores these files and other data in non volatile memory which retains the information even if power is turned off The flowmeter itself runs on rechargeable or alkaline batteries for up to 8 hours This small lightweight flowmeter displays measurements in both numeric and grap
222. urse of dealing or usage or trade iii April 2009 Return Policy If a GE Infrastructure Sensing Inc instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Infrastructure Sensing Inc giving full details of the problem and provide the model number and serial number of the instrument If the nature of the problem indicates the need for factory service GE Infrastructure Sensing Inc will issue a RETURN AUTHORIZATION NUMBER RAN and shipping instructions for the return of the instrument to a service center will be provided 2 If GE Infrastructure Sensing Inc instructs you to send your instrument to a service center it must be shipped prepaid to the authorized repair station indicated in the shipping instructions 3 Upon receipt GE Infrastructure Sensing Inc will evaluate the instrument to determine the cause of the malfunction Then one of the following courses of action will then be taken e f the damage is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned e If GE Infrastructure Sensing Inc determines that the damage is not covered under the terms of the warranty or if the warranty has expired an estimate for the cost of the repairs at standard rates will be provided Upon receipt of the owner s approval to proceed the instrument will be repaired and returned April 2009 Table of Contents Ch
223. use inaccurate readings Refer to Chapter 4 Programming Site Data pages 4 7 to 4 10 for instructions on programming the pipe data 10 10 Diagnostics and Troubleshooting April 2009 Transducer Problems Ultrasonic transducers are rugged reliable devices However they are subject to physical damage from mishandling and chemical attack The most common transducer problems are listed below 1 LEAKS Leaks may occur around the transducer and or the flowcell fittings Repair such leaks immediately If the leaking gas is corrosive carefully check the transducer and cables for damage after the leak has been repaired 2 CORROSION DAMAGE If the transducer material was not properly chosen for the intended application the transducers may suffer corrosion damage The damage usually occurs either at the electrical connector or on the transducer surface If corrosion is suspected remove the transducer from the flowcell and carefully inspect the electrical connector and the transducer surface for roughness and or pitting Any transducer damaged in this manner must be replaced Contact GE Sensing for information on transducers in materials suitable for the application 3 INTERNAL DAMAGE An ultrasonic transducer consists of a ceramic crystal bonded to the transducer case The bond between the crystal and the case or the crystal itself may be damaged by extreme mechanical shock and or temperature extremes Also the internal wiring can be
224. ws 2000 No Yes Windows NT 4 0 QuickBeam QuickBeam Windows Me Yes Yes Windows 98 SE Yes Yes Windows 98 Yes Yes Windows 95 Yes Yes Windows 3 1 May require QuickBeam installation under some circumstances when Windows built in support fails QuickBeam is a recom mended infrared file software transfer utility from Extended Sys tems Inc Since Windows NT4 0 has no built in support for IR file transfer QuickBeam is necessary with this operating system Windows 2000 XP Both Windows 2000 and XP include infrared drivers in their operating systems From the Control Panel click on Add New Hardware and select the appropriate IR port whether built in or using an external dongle B 2 Establishing IR Communications with the PT878GC April 2009 Windows NT4 0 For IR use Windows NT4 0 requires installation of QuickBeam software from Extended Systems www extendedsystems com Desktop PCs and laptops without built in IR ports also require adding an IR dongle While laptops with a built in IR port normally do not require a dongle its addition might be necessary in some cases Windows Me 98SE 98 95 The Windows 98SE and Me operating systems include IR drivers However in most cases the IR port has not been installed or configured From the Control Panel click on Add New Hardware and select Choose Device From List Select Infrared from the list and then select the appropriate infrared port whether bu
225. ys to enter the known pressure c Press ENTER to confirm the entry Whether you have selected a fixed or an active supply the PT878GC asks for the desired input a From the Pressure text box press the gt arrow key to reach the Input menu b Press ENTER to open the drop down menu c Scroll to Input A or B d Press ENTER to confirm the entry The next prompt asks if the temperature is fixed or active a Use the lt d and P keys to scroll to the appropriate radio button b Press ENTER to confirm your selection The next prompt appears if you have selected a fixed temperature The PT878GC asks for the fixed temperature value a Press ENTER to open the text box b Use the numeric keys to enter the known temperature in degrees C or F and press ENTER to confirm the entry Whether you have selected a fixed or an active temperature the PT878GC asks for the desired input a Press ENTER to open the drop down menu b Scroll to Input A or B c Press ENTER to confirm the entry 4 20 Programming Site Data April 2009 Entering Inputs in the Standard Volume Option cont Note Jf you have switched both active inputs to HA or to B the PT878GC automatically switches one input to the other letter This change ensures that only one analog input is assigned to one measurement type Pressing the V key returns the meter to the Inputs tab To confirm the entries and re

PT878GC Portable Gas Flowmeter User`s Manual

Contents

Download Pdf Manuals

Related Search

Related Contents