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Service Manual - GE Measurement & Control

1. Figure 4 10 OR 11 AR HR 14 IR 15 FHII 16 HART 17 HART OI NOTES OUTA OUT A 1 MATERIAL 003 THK REF MYLAR WITH REVERSE SCREENING c AND 3M 467MP OR EQUIVALENT ADHESIVE BACKING 2 MARKINGS BACKGROUND WHITE ALL MARKINGS PROCESS BLACK C 3 ALL COLORS PER PANTONE MATCHING SYSTEM RTD A A 4 ALL DIMENSIONS PER 01 COMM A s 5 ARTWORK CREATED IN ADOBE ILLUSTRATOR FILE 442 615 N AI COM A A 6 ALL DIMENSIONS REFERENCE OUTD 20V INPUT D INPUT D RTN 19 HART RI 20 AGATE HART 22 ORI DigitalFlow XGF868i Service Manual 10 Chapter 2 Error Codes Chapter 2 Error Codes 2 1 Introduction The Model XGF868i ultrasonic flow transmitter is a reliable easy to maintain instrument When properly installed and operated as described in the Startup Guide the meter provides accurate flow rate measurements with minimal user intervention However if a problem should arise with the electronics enclosure the transducers or the flowcell a built in error code message system greatly simplifies the troubleshooting process All of the possible Model XGF868i error code messages are discussed in this chapter along with the possible c
2. 4mA 20 mA CALIBRATING STORE ABORT CLOSE OP Slot 1 Totalizer Outputs Slot 1 y RTD Inputs 8 L 6 p PULSES press EXIT key RTD INPUT Slot 1y Frequency Outputs setPt Slope SET POINT TEMP CALIBRATING STORE ABORT SLOPE TEMP 6 8 FREQUENCY NOTE Plain text represents prompt area meassages and boxed text represents option bar choices Fx represent function keys to select option bar choices Figure 3 Calibration Menu Map Chapter 1 Calibration OUT C 24V INPUT C INPUT C RTN OUT D 24V INPUT D INPUT D RTN 01 AA HH 02 FF TT FT CT CF 03 FO TO CO 04 FA FH TA TH CA CH 05 CI TFI 06 CR FR TR 08 AL HI 09 Ol IQUT A HART OUT A OUT A HART OUT A C C C C C OUTC 24V INPUT INPUT D RIN OUTD 20V INPUTD INPUT C RTN Option Card I O Connections
3. E BO 12 MC L SO 12 o 13 ES a aA RR yag ada Rd aaa adis 13 6 13 13 0 13 ha ee 14 Error Message Display Screen 4 11 Expansion Slols 22a aseckA4 pda ode a adele as 1 41 F Factory Test qu acis aora ora Ca PEE a dos we 61 Factory Test Meng i iscsi wend E xy Rea o es 61 LOM 54 Flowcell Problems rr 21 aucun med oe ye ed Ee scd e ed 22 Frequency Option Card 109 7 Frequency Outputs Testing w PanaView 49 Fuse Replacing iusso ose eee REA EAE RA 29 G Gas Contamination es novis vase sew 21 Physical Requirements 244 3 vus va er RR 2l Problems cosh sai E Ae Re 4 La R adhd 21 So ndspe d saeua dec reb a head adria 21 H Hardware Teste 0 bist d reb o end ser wa 33 Initializing Meter with PanaView 37 64 Inputs 20 MA OBI 240 5 47 AMA 2640849000240 hk ERR sirs 5 47 K Keypad Program for Calibration 1 L LCD Contrast Changing with PanaView 55 LCD Diy odi sertes wanda ewan EE 28 LCD Test orror RR T edis ts dta o a Ped dx 55 Leaks Transducers 0 0 0 0 eee eee eee 23 Low Pressure Bror lt BLA aaa sans Vue eae ead 14 Low Signal Errors El 2 2 ey xRESS 12 25 M 8 19 39 MDOT 2 4 6 ud uat du e Pho ei t Rx 19 59 Memory Data Uploading with PanaView 52 N No Error EU0 v Cx urea os eR Ier dos a 12
4. 5 There is a 36 pin connector P2 and a 30 pin connector P1 on the rear of the interconnect board The option cards must be plugged into these connectors a Note To install a communication card into Slot 2 orient the option card so that its 36 pin connector is positioned over connector P2 on the interconnect board Then firmly seat the card into its connector When properly installed the side of the option card with the 36 pin connector must face the center of the interconnect board and the edge of the option card must not overhang the edge of the interconnect board To install an O option card with optional heat sink into Slot 1 orient the option card so that its 30 pin connector is positioned over connector P1 on the interconnect board Then firmly seat the card into its connector When properly installed the side of the option card with the 30 pin connector must face away from the center of the interconnect board and the edge of the option card must not overhang the edge of the interconnect board However the optional heat sink will extend beyond the edge To attach an optional heat sink to an I O option card see page 32 When the XGF868i includes both an I O board Slot 1 and an option board Slot 2 the two boards must be attached to each other with the hardware shown in Illustration 10 in Figure 8 on page 37 Pre attach the nylon washer to the screw before inserting the boards into the assembly DigitalFlow XGF
5. iw CALIBRATION TEST UPLOAD NOW TO DISPLAY Arafo load Raw UP signal Cha Channel 1 UPLOAD NOW TO DISPLAY HEX BYTES 0064 Exit Page Figure 12 Signal Array Data Displayed on PanaView Ifyou double click on 7o File another window opens similar to Figure 13 Enter a file name and click Save PanaView stores the array data in a Windows file and closes the Calibration Test window js Site2 sit MeterConfigs mdb Sites sit PanaView_1 3 11_EXE_ONLY S NewLogt txt a Site4 prt PanaView 1 3 7 Exe Only is PanaCom ocx E Site4 sit f Panaview exe Work si i Panaview ldb a Work2 sit Panaview mdb a working sit Sl raw txt a working1 sit a RawUP n MTMEM Site1 sit Ej ste t My Computer File name gt Save as type an Files 7 Figure 13 Saving Signal Array Data to File My Network pz DigitalFlow XGF868i Service Manual 51 Appendix B Calibration and Testing with PanaView B 5 2 Uploading XGF868i Memory Note This option is for factory use only The Upload XGM Memory option is another diagnostic tool IMPORTANT Consult GE before using this data to change any parameters In the Calibration Test menu double click on the Upload XGM Memory option The first prompt shows the Hex Start Address Click Next Item The next prompt displays the value for the Hex Bytes Click Next Item S YY m PanaView now offers two options for Upl
6. 1 Open the Meter Browser window and highlight the XGF868i 2 Expand the Edit Functions option The window now appears similar to that shown in Figure 9 on page 42 3 Double click on the Calibration Test menu The window appears similar to Figure 10 on page 42 Proceed to the appropriate section to upload data and test hardware B 5 1 Uploading Signal Array Data By uploading XGF868i signal array data for examination a user can check if the transducer signal is the proper shape and change setup parameters if necessary IMPORTANT Consult GE before using this data to change any parameters 1 Inthe Calibration Test menu double click on the Signal Array Upload option 2 Double click on the desired Channel 3 The next prompt asks for the specific Array to Load Five choices are available Raw UP Upstream Signal Raw DOWN Downstream Signal CFUNC UP Correlation Function Upstream CFUNC DOWN Correlation Function Downstream CCFUNC Cross Correlation Function Double click on the desired array 50 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView B 5 1 Uploading Signal Array Data cont 4 PanaView now offers two options for Uploading the array data Ifyou double click on 7o Display the right pane of the window appears similar to Figure 12 and the data is available for immediate evaluation Click Exit Page to close the window and return to the Calibration Test menu
7. to return to the S ot 7 window and calibrate additional inputs outputs or click Exit Page again to close the Calibration Test menu DigitalFlow XGF868i Service Manual 47 Appendix B Calibration and Testing with PanaView B 4 3 RTD Inputs RTD inputs may be added to the Model XGF8681 by installing an appropriate option card in Slot 1 This option card contains two or four RTD inputs which are designated as A B C and D Both the set and slope temperature values for each input must be calibrated Calibration of the RTD inputs requires the use of a calibrated RTD source IMPORTANT Jfa Slot 0 analog output will be used to calibrate the analog inputs the Slot 0 analog output calibration procedure must be completed first Prepare for the calibration procedure by connecting an independent calibrated RTD source to the desired input of the option card See Figure 4 on page 10 to identify the RTD and COMI pins for Input A on terminal block J2 1 Inthe center pane of the Calibration Test window double click on Slot 1 2 Double click on the desired input to open the RTD Calibration menu IMPORTANT 77e procedure for calibrating each input is identical However be sure to reconnect the temperature reference on terminal block J2 See Figure 4 on page 10 for the correct pin numbers Proceed to the corresponding sub section for specific instructions on each of the options shown above B 4 4 Entering the Set Point 1 Before pro
8. 1 Calibration 1 6 Testing the Frequency Outputs Frequency outputs may be added to the Model XGF868i by installing an appropriate option card in Slot 1 This option card contains two or four frequency outputs which are designated A B C and D 1 6 1 Preparing for Testing Prepare for the testing procedure by connecting a frequency counter to the desired output on the option card See Figure on page 6 for frequency output wiring and Figure 4 on page 10 to identify the OUT and RTN pins for the desired output on terminal block J2 1 6 2 Testing the Output 1 From the Keypad Program press the right arrow key to scroll to the CALIB menu Press Enter 2 Inthe Cal window scroll to Slot 1 Press Enter Note The Slot 1 option only appears at the above prompt if an option card is installed in this slot 3 Scroll to the desired Output Output A will be used as an example in this manual Press Enter IMPORTANT The procedure for testing all the outputs is the same However when testing another output be sure to reconnect the frequency counter at terminal block J2 See Figure 4 on page 10 for the correct pins 4 Enter a frequency between 1 and 10 000 Hz and press Enter 5 Verify that the frequency counter reads the correct value Procedure Options This completes testing of the Slot 1 frequency outputs Do one of the following To test another of the available frequency outputs return to Step 3 in Testing th
9. 2045 Ba vented the Set POM 48 BAS Entering 49 000 B 46 Testing Frequency Testing XGF868i Software and Hardware issus bake x GR ERA bee mond REORRRUC ER FR EO RPER RUP Reit aln 50 B5 LU pega Signal Array DOG iacet eed da ac pO SIMI Ie ee oben ade doeet aq aditus 50 qot madera eoe bone ae b ofa dgetiadik ind 52 020 553 B 5 2Uploading SP OGG MEMO ei B 5 5 Festina AGFS GSI Tele 8 S quee near Ioa ci dm pus 53 EPROM TGS 53 33 3 5 ERE eee Reh Ga ee Mes eee UHR AUR RR ER n er WR E RU ee 53 086 B 5 3b NVR BOSSCRANTES Tr 54 B 5 3d FIFO Testis tact ads Vente VEA etes PRECES R AP RUM ROS epee ed Append E qaa 54 B 5 3e CCD Vest quien Slee 7 55 B 5 3t LCD Contrast uode ss Er eared age thane dh vita edhe 55 B 5 3g DAC ES 55 B 5 3h Site CHECK SUMS ouo ped oe ER cite ange ete EHE LANG ee E Ss Ce ae ESAS 55 DigitalFlow XGF868i Service Manual Contents ISE HI mI PPM 56 B 5 3j Programming an Optional Card EEPROM 0 0 cece n 56 B 5 3k Reading an Optional Card EEPROM 0 2 0 0 RR cect n 57 B 5 3l Setting the Number of Channels 1s veto e REMIS ds eb 4 eae eee See ed ba ees Pag vos 57 B 5 3m Initializing the XGF868i to Default Values 2 0 0 2 cee cette nee 57 Appendix C Factory Tests esM cou PL 61 Ge Resetting the Number of Channels 22 2202144 0133 61 C3 Resetting the XGF868I to Factory Defaults ususanni nnns rur nrar rrr ren rnrn r nrn r rnnr rer
10. NVR Testaa PETERE 53 0 Option Card Analog Inputs 2x edd roa ere ER ERR 4 Analog Outputs isa 2 4 ca wks 2 46 47 48 31 Calibrating with 88 6 45 Expansion 1 41 Frequency Outputs 5 7 J staling iiu adiacet rd od oe oso adds 31 RD 0 Optional Card EEPROM Programming with PanaView 56 Reading with PanaView 2 vr ax as e RR ewes 57 Over Range Error E13 9 14 P 42264 450 2 ee ee ee 19 59 o D 19 59 PanaView for Calibrating llle 42 DigitalFlow XGF868i Service Manual PEAK zai eua edd asa ey maa Ead dos ened 19 59 Pipe Measurements v dua cues or ERE Re d 22 Problemi 7 22 PRESR coreean edes ER ee ale RR EAS 19 59 Pressure Input Error E9 4 14 Printed Circuit Board EPROM 30 Problems Transducers 0 0000 eee 23 Q OS AERE ERIS S ET Parsee 19 59 CH uaa raa d bobus ang hand sqb ii 19 59 R RAM TUS abest dtu d zem reed ee teda 54 Replacing See Part Name Return Policy nurises tin ina PURRE 67 RTD Inputs Option Card Calibrating 6 RTD Inputs Calibrating with PanaView 48 RTD Set Point Entering in PanaView 48 RTD Slope Point Entering in PanaView 48 S Service DEBEO du ia eui rete ed E APER 39 Set Point in RTD Calibration 6 Signal Array Data Uploading w PanaView 50 Signal Quality Error EA ses acdsee ek Re 13 DIODE e RTE EN ET a HE a EE 48 in RT
11. cable Refer to Chapter 1 Calibration and recalibrate the analog RTD inputs option card DigitalFlow XGF868i Service Manual 13 Chapter 2 Error Codes E9 Pressure In Problem This message indicates a pressure input error Cause The pressure exceeds the specified limits for the analog inputs option card or no input device is connected Action Check the pressure transmitter and the connecting cable Refer to Chapter 1 Calibration and recalibrate the analog inputs option card E10 Special Input Problem This message indicates a special input error Cause The special input exceeds the specified limits for the analog inputs option card Action Check the special input device and the connecting cable Refer to Chapter 1 Calibration and recalibrate the analog inputs option card E11 Not Used This error code message is not currently in use E12 Low Pressure Problem This error code is triggered when the pressure measurement is below the low pressure switch setting Cause The pressure measurement exceeds the specified limits as set in the Channelx Input Output submenu Cause Check the limit value 0 to 5 000 psia entered into the Channelx Input Output submenu as described in Chapter 1 Programming Site Data of the Programming Manual E13 Over Range Problem This error code message indicates that the present measurement exceeds the range of the meter Cause A internal mathematical overflow has occurred in ei
12. contact the factory for assistance 0 10 20 30 40 50 60 70 80 90 100 10 Scroll to EXIT and press Enter to return to the Cal menu Then choose another output to calibrate or press Escape to leave the CALIB menu This completes calibration of the Slot 0 analog outputs Proceed to the appropriate section to calibrate additional inputs outputs 14 Calibrating Analog Inputs Analog inputs may be added to the Model XGF868i by installing an appropriate option card in Slot 1 This option card contains two or four analog inputs which are designated as A B C and D Both the zero point and full scale values for each input must be calibrated Calibration of the analog inputs requires the use of a calibrated current source If an independent calibrated current source is not available one of the Slot O analog outputs may be used for the calibration During the analog input calibration the Slot O analog output will supply the low reference high reference 4 mA and 20 mA signals at the appropriate times IMPORTANT Jfa Slot 0 analog output will be used to calibrate the analog inputs the Slot O analog output calibration procedure must be completed first 4 DigitalFlow XGF868i Service Manual Chapter 1 Calibration 1 4 4 Preparing for Calibration Prepare for the calibration procedure by connecting a Slot 0 analog output or an independent calibrated current source to the desired input on the option card See Fi
13. deine on 3 Elba Ano alein 2526 645adene oreo ES Gad popa did d qii bd qd Fo UbUM E ESOS P PERROESS 4 1 5 Preparing Ree sine sauer diat Ede E ted DA Ra best ere Ed bci EN udo 5 1 4 2 Accessing the Calibration Test Menu xs sace dd cabe 0 00 pite ER REGE Od ROREM IRE EXE EE 5 1 4244 MA Ophio evo npea ESSAI eRe Ue eee REA Eg S RP qa s dn tat as 5 14 2020 mA Option s Roe ad a ax RR oes does E 8 0 au doe tee 5 Calibrating REEPIPIDUES Lied duredceb Cree VAN HERE bert Earn Ebert irae pesce bed Prec E 6 1 53 Preparing Ter Call DEO s scare oar rd Erbe b EE Ie EIE An EORR 0000 6 1 5 2 Accessing the Calibration Test Menu e oet CDU ERR Er rr EEEE EAE RETA RR 6 1 5 3 Entering the Set POIN va nice er n aaa paa R RRR elec FE ua Le ed EE reae RR paced i ee R 6 1 5 4 Entering the Slope 6 Testing the Frequency eei Em 7 1 6 1 Preparing for 7 16 2 TESting the H METERS 7 Chapter 2 Error Codes 2 1 e AAN EAA NAARAAN EA ASAA R 11 610 Chapter 3 Diagnostics 3 1 3 2 3 3 3 4 eoed aa aha eae 17 Displaying Diagnostic PROBES Ss isses ich Ohad NK PUE rei SEED roan 17 Fowcell RE 21 SDDS 21 PODIS ainan E A E AREA E E E AREE E E ER E OR 22 reee IGE ne T E A e EE AE ETA 7 23 DigitalFlow XGF868i Service Manual iii Contents Chapter 4 Parts Replacement 4 1 4 2 4 5 4 4 4 5 4 6 4 7 A 1 A 2 E E A EA E E EIEE E EEA 25 Re
14. enclosure the flowcell or the transducers Indications of a possible problem include e display of an error message on the LCD display screen e erratic flow readings readings of doubtful accuracy 1 6 readings that are not consistent with readings from another flow measuring device connected to the same process If any of the above conditions occurs proceed with the instructions presented in this chapter 3 2 Displaying Diagnostic Parameters The Model XGF868i has built in Diagnostic Parameters to aid in the troubleshooting of flowcell transducer and or electrical problems To access these parameters use the Keypad Program Then complete the following instructions to display the desired diagnostic parameter Note To perform this function with PanaView software see Appendix C Programming with PanaView in the Programming Manual and or the PanaView User s Manual Press Escape Enter Escape In the Keypad Program window scroll to PROG and press Enter In the PROG menu scroll to GLOBL and press Enter Scroll to I O and press Enter Scroll to LCD and press Enter D lt lt om m The window now asks for the of LCD Parameters Scroll to the desired number from OFF through 1 4 and KEY and press Enter The OFF setting switches the measurement display off while the KEY setting enables users to change the measurement display via the arrow keys without accessing the Keypad Program If you select KEY
15. left pane of the Calibration Test window double click on Hardware Test In the center pane double click on CALIBRATION VALUES The right pane displays a list of DAC calibration values Click Next Item or Exit Page to return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu 8 5 3 Programming an Optional Card EEPROM To program the EEPROM for an optional card 1 2 Pes 56 From the left pane of the Calibration Test window double click on Hardware Test In the center pane double click on PROG OPCARD EEPROM To enable you to Choose an Opcard the center pane displays a list of possible option cards Scroll to and double click on the type of card installed The program asks for the Board Revision Enter the revision letter in the right pane and click Next Item The next prompt asks for the Group Enter the appropriate value and click Next Item The next prompt asks for the Special Mod Enter the appropriate value and click Next Item The program now asks for the Month Scroll to and double click on the desired month The next prompt asks for the Day Enter the desired value from 1 to 31 and click Next Item The next prompt asks for the Year Enter the appropriate value from 2002 to 2089 and click Next Item The final prompt asks for the Serial Enter the appropriate value and click Next Item The right pane now displays the programmed Header Informa
16. programmed in the Channelx Set up Signal submenu of the Keypad Program The error may be caused by incorrect programming poor flow conditions or poor transducer orientation Compare the measured sound speed to tabulated nominal values for the gas being used and correct any programming errors Refer to Chapter 3 Diagnostics to correct any flowcell and or transducer problems E3 Velocity Range Problem Cause Action 12 The velocity exceeds the limits programmed in the Channelx Set up Signal submenu of the Keypad Program This error may be caused by the entry of improper programming data or by poor flow conditions and or excessive turbulence Make sure the actual flow rate is within 75 ft sec 423 m sec See Chapter 1 Programming Site Data in the Programming Manual for details Refer to Chapter 3 Diagnostics to correct any flowcell and or transducer problems DigitalFlow XGF868i Service Manual Chapter 2 Error Codes E4 Signal Quality Problem The signal quality is outside the limits programmed in the Channelx Set up Signal submenu of the Keypad Program Cause The peak of the upstream or downstream correlation signals has fallen below the correlation peak limit as set in the Channelx Set up Signal submenu This may be caused by a flowcell or electrical problem Action Check for sources of electrical interference and verify the integrity of the electronics console by temporarily substituting a tes
17. the electrical connector or on the transducer face If corrosion is suspected remove the transducer from the flowcell and carefully inspect the electrical connector and the transducer face for roughness and or pitting Any transducer damaged in this manner must be replaced Contact GE for information on transducers in materials suitable for the application 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 corroded or shorted if contaminants enter the transducer housing 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 most subject to damage Minor damage may be repaired by carefully bending the connector back into shape If the connector can not be repaired the transducer must be replaced IMPORTANT Transducers must be replaced in pairs Refer to Chapter 2 Initial Setup of the Startup Guide to program the new transducer data into the meter If the instructions in this section fail to resolve the problem contact the factory for assistance DigitalFlow XGF868i Service Manual 23 Chapter 3 Diagnostics 24 DigitalFlow XGF868i Service Manual Chapter 4 Parts Replacement
18. the pipe data In addition to the actual pipe dimensions the path length P and the axial dimension L based on the actual transducer mounting locations must be accurately programmed into the flowmeter For a GE flowcell this data will be included with the documentation for the system If the transducers are mounted onto an existing pipe these dimensions must be precisely measured See Appendix C Measuring P and L Dimensions of the Startup Guide for a thorough discussion of this topic Signal strength above 75 The XGF868i is supplied with a signal preamplifier However this amplifier may not be necessary for high pressure applications If the meter has a signal strength above 75 bypass the preamp and connect the coax cable directly to the transducers DigitalFlow XGF868i Service Manual Chapter 3 Diagnostics 3 4 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 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
19. 0 Certified Company www ge mcs com en about us quality html WWW ge mcs com 2012 General Electric Company All rights reserved Technical content subject to change without notice 910 198S Rev A
20. 7 65 Index 66 DigitalFlow XGF868i Service Manual Warranty Warranty Each instrument manufactured by GE Sensing 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 Sensing Fuses and batteries are specifically excluded from any liability This warranty is effective from the date of delivery to the original purchaser If GE Sensing determines that the equipment was defective the warranty period is e one year from delivery for electronic or mechanical failures one year from delivery for sensor shelf life If GE Sensing 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 Sensing 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 course of dealing or usage or trade Return Policy If a GE Sensing instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Sensing giving full details of the problem and provide the model number and serial number of the instrument If th
21. 868i Service Manual 31 Chapter 4 Parts Replacement 4 6 1 Attaching an Optional Heat Sink to an I O Option Card If you need to attach an optional heat sink to an I O option card the TI TR FI or FR options in Appendix B of the Startup Guide refer to Illustration 9 in Figure 8 on page 37 and complete the following steps 1 Orient the thermal heat pad s to the heat sink as shown in Figure 8 on page 37 and apply it to the heat sink 2 Loosely attach the aluminum backplate to the I O heat sink with three screws lock washers and flat washers Note The following step applies only to the TR and FR option cards Otherwise proceed to step 4 3 Ifyou have an optional heat sink bridge attach it to the I O heat sink with two screws lock washers flat washers and nuts 4 Attach the assembled heat sink by straddling the power supply components on the option card with the aluminum plate to the left inside and the heat sink to the right outside 5 Tighten the three screws step 2 to secure the aluminum backplate to the heat sink Complete the option card installation by proceeding to Assembling the Circuit Board Assembly below 4 7 Assembling Installing the Circuit Board Assembly Most of the parts replacement procedures described in this chapter require removal of the circuit board assembly from the electronics enclosure Furthermore most of the procedures require varying degrees of disassembly of the circuit board assembly See Fi
22. Chapter 4 Parts Replacement 4 1 Introduction The Model XGF8681 has been designed to permit easy on site upgrades and parts replacement See Figure 6 on page 35 for details of the standard XGF8681 electronics enclosure assembly The instructions in this chapter along with a few common tools are all that is required to perform the following tasks removing the circuit board assembly replacing the LCD display interconnect subassembly replacing the fuse replacing the User Program installing an option card e assembling installing the circuit board assembly WARNING Prior to performing any maintenance procedures be sure to disconnect the main power from the unit If the XGF868i is installed in a hazardous environment a the electronics enclosure must be moved to a safe area prior to removing the covers or b if the electronics enclosure cannot be moved to a safe area ensure that the surrounding area is free of ignitable gases Note For compliance with the European Union 5 Low Voltage Directive 2006 95 EC this unit requires an external power disconnect device such as a switch or circuit breaker The disconnect device must be marked as such clearly visible directly accessible and located within 1 8 m 6 fi of the Model XGF666i Use Figure 6 on page 35 Figure 7 on page 36 and Figure 8 on page 37 to locate the relevant components while completing the service procedures discussed in this chapter IMPORTANT Keep a det
23. D Calibration ee cresce criar ba RE ER 6 SNDSP 2 00 0 19 59 Soundspeed Erros E2 osre res es wen descend eee canes 12 Uo PTT 21 Special Input Error E10 14 SS La sa see ene EN eee ees eee 19 59 SS 19 59 SEV OL uu cies edad s RU du ER s 19 59 T TUN stad areeese eased od d b bara dr ds 20 60 di 19 59 0 19 59 D 19 59 DigitalFlow XGF868i Service Manual Index Temperature Input Error 8 13 Testing Frequency Outputs 5 7 XMT868 Hardware 4 5 4 bear ee 53 Testing with PanaView Frequency Outputs rr rara 49 Hardware and Software 20 TIMER A e Rx RRRES YR 19 59 jpg 9 50 Totals Overflow Error 14 STOLTE S o pd Soph eS dE Ua pa du 19 59 Transducers SIT eT 23 Internal Damage lt irae acie Sea REA RA Y AES 23 PD 23 Physical Damage EE week ax des 23 Placements ERR ER te 0 arrine a T T T T 22 gt 2 4 Tar 9 K T doe m 23 R placement e AW owe cee au cab eor 23 TEM 2 20 60 irr PM 19 59 jp M t es 19 59 U Upload XMT Memory with PanaView 52 Uploading Signal Array Data 50 User Program EPROM eR ER ee ear ee eee 30 Upgrading 2 575 KE aoe sad bibas RAP 30 V VEL TP 19 59 Velocity Range Error 23 000 12 po MP NT rS 20 60 VOLUM seraa RE Seg RREPFxERG 19 59 W etin 2 n EEEE ETENA 6
24. GE Measurement amp Control Gas Analysis DigitalFlow XGF868i Panametrics Flare Gas Flow Transmitter 2 Channel Service Manual inati t k 910 1985 Rev A imagination at wor June 2012 DigitalFlow XGF868i Panametrics Flare Gas Flow Transmitter 2 Channel Service Manual 910 1985 Rev A June 2012 WWW ge mcs com 2012 General Electric Company All rights reserved Technical content subject to change without notice no content intended for this page Preface Information Paragraphs Note paragraphs provide information that provides a deeper understanding of the situation but is not essential to the proper completion of the instructions Important paragraphs provide information that emphasizes instructions that are essential to proper setup of the equipment Failure to follow these instructions carefully may cause unreliable performance Caution paragraphs provide information that alerts the operator to a hazardous situation that can cause damage to property or equipment e Warning paragraphs provide information that alerts the operator to a hazardous situation that can cause injury to personnel Cautionary information is also included when applicable Safety Issues WARNING Itis the responsibility of the user to make sure all local county state and national codes regulations rules and laws related to safety and safe operating conditions are met for each installation Auxiliary E
25. Mounting Screw with Washer Assembly 3 places J2 Connector Lap Bracket Screw P8 Connector on Terminal Board connects to J8 Connector on Main Board P21 Connector on Terminal Board connects to J3 Connector on Option Board Slot 2 P22 Connector on Terminal Board connects to P2 Connector on I O Option Board Slot 1 Bracket Nut Washer and Lock Washer Illustration 7 J7 for AC Power Supply shown J6 for DC Power Supply Fuse Cover DC Power Supply Board Heatsink for AC Power Supply only Screw Lock Washer and Flat Washer 2 places Gap Filler for AC Power Supply only AC Power Supply Assembly P N Main Board U6 Eprom Illustration 8 shown with AC Power Supply Note There are no Heat Sink and Gap Fillers with a DC Power Supply Figure 7 Model XGF868i LCD Display Interconnect Board Subassembly 34 Chapter 4 Parts Replacement Screw with Washer Assembly IO Heatsink Bridge and Mating Nut not shown Gap Filler white surface facing the Bridge Gap Filler white surface facing the Bridge 2 places Screw with Washer Assembly 3 places I O Heatsink Gap Filler white surface facing the I O Heatsink Back Plate Screw Lock Washer and Flat Washer 2 places Power Supply Board J6 Connector on Main Board Power
26. S To view a parameter other than the one currently displayed press the A or V keys to scroll through the various parameters e To scroll through the channel options on an XGF 868i press the lt or D keys until you have reached the desired option DigitalFlow XGF868i Service Manual 17 Chapter 3 Diagnostics 3 2 Displaying Diagnostic Parameters cont 7 Scroll to the desired Channel option as listed in Table 2 Table 2 Channel Options CH1 Channel 1 CH2 Channel 2 SUM CH1 CH2 DIF CH1 CH2 AVE CH1 CH2 2 8 For each channel select the desired Measurement Parameter as shown in Table 3 on page 19 Note The measurement units that appear in these prompts are those selected in the GLOBL SYSTM menu earlier in this section Also when differences in one channel s programming invalidate an output previously chosen for the other the measurement defaults to the nearest selectable item in the parameter list The previous two prompts repeat until all of the specified of LCD Parameters have been set up When all of the display parameters have been set up the meter returns to the Global MO window To leave the Keypad Program press the Escape key three times After leaving the Keypad Program the XGF868i will reset itself and will begin to display the parameters specified in this section If more than one parameter was set up each of the parameters will be displayed in sequence with a pause of
27. Supply Heatsink Gap Filler white surface facing PCB I O Board Brank 2 LEGERE J6 Connector on racket Screw Power Supply Standoff aS J2 Connector on J5 Connector on Main Board Power Supply Illustration 9 Nylon Washer Standoff Bracket Nylon Washer Bracket Keypad Board Screw with Washer Assembly E NA 2 places S S ME S Interconnect Board I O Board Slot 1 Flat Washer r4 Em IO with Heatsink P1 Connector on Interconnect Board Figure 8 Model XGF868i I O Option Card Subassembly Lock Washer Temm J2 Connector on J1 Connector on I O Board Option Board Slot 2 Slot 1 with Heatsink pe Connector Inieieonned odio Screw Illustration 11 Illustration 10 DigitalFlow XGF868i Service Manual 35 Chapter 4 Parts Replacement DigitalFlow XGF868i Service Manual 36 Appendix A Service Record Appendix A Service Record A 1 Introduction Whenever any service procedure is performed on the Model XGF8681 flow transmitter the details of the service should be recorded in this appendix An accurate service history of the meter can prove very helpful in troubleshooting any future problems A 2 Data Entry Record complete and detailed service data for the Model XGF868i in Ta
28. T to cancel the entry Press Enter In either case the XGF868i returns to the Analog Input window 1 48b 20 ma Option Set the calibrated current source to 20 mA e Ifyou selected the 20 mA option in the ANALOG INPUT option scroll STORE to accept the current 20 mA value or to ABORT to cancel the entry Press Enter In either case the XGF868i returns to the AVALOG INPUT window Press Escape to return to the S ot 1 window and calibrate additional inputs outputs or press Escape again to close the CALIB menu DigitalFlow XGF868i Service Manual 5 Chapter 1 Calibration 15 Calibrating RTD Inputs RTD analog inputs may be added to the XGF868i by installing an appropriate option card in Slot 1 The option card contains two or four RTD inputs that are designated as A B C and D Both the set point and slope point values for each input must be specified prior to use 1 5 1 Preparing for Calibration Prepare for the calibration procedure by connecting the RTD temperature transmitter to the desired input A B C or D on the option card See Figure 4 on page 10 to identify the RTD and COM pins for the desired input on terminal block J2 1 5 2 Accessing the Calibration Test Menu 1 From the Keypad Program press the right arrow key to scroll to the CALIB menu Press Enter 2 In the Cal window scroll to Slot 1 Press Enter Note The Slot 1 option only appears at the above prompt if an option card is installed in
29. ace against the power supply board 3 Secure the power supply board and heat sink to the main board by reinstalling the screws flat washers and lock washer previously removed from the corners of the power supply board See Illustration 11 in Figure 8 on page 37 4 Refer back to Illustration 7 in Figure 7 on page 36 Carefully align the terminal board onto the main board power supply assembly and the two option boards Slot 1 and Slot 2 where applicable so that the connectors listed in Table 5 are facing each other Table 5 Matings for Terminal Board S ating Board P10 Connector J9 Connector on Main Board P9 Connector J10 Connector on Main Board P8 Connector J8 Connector on Main Board P21 Connector J1 J3 Connector on I O Board Slot 2 Option NX P22 Connector P2 Connector on MO Board Slot 1 Firmly press the terminal board and the interconnect board toward each other until all of the connectors are completely seated IMPORTANT With two option cards installed it may require some patience to get all of the connectors properly aligned Do not force the assembly together or some of the pins may not enter the sockets properly 5 Secure the assembly together by installing the three mounting screws flat washers and lock washers previously removed from the terminal board Be sure to install one end of the green grounding jumper wire under the screw indicated in Illustration 7 in Figure 7 on page 36 The smaller sc
30. ailed record of all parts installations and replacements performed on the XGF 868i in the Appendix A Service Record This service history may prove very helpful in diagnosing any future problems DigitalFlow XGF868i Service Manual 25 Chapter 4 Parts Replacement 4 2 Removing the Circuit Board Assembly All parts replacement procedures for the Model XGF8681 require the removal of the circuit board assembly from the electronics enclosure Therefore complete the instructions in this section before attempting any other service tasks The Model XGF868i circuit board assembly consists of circular front and rear circuit boards with several rectangular circuit boards sandwiched between the circular end boards and oriented perpendicular to them Specifically some or all of the following circuit boards may be included in the assembly FRONT BOARDS LCD Display Interconnect Board Subassembly REAR BOARD Terminal Board MIDDLE BOARDS e Main Board e Receiver Board Power Supply Board e Slot 1 Input Output Card optional Slot 2 Logging RS485 Card optional To disassemble the circuit board assembly refer to Figure 6 on page 35 and complete the following steps 1 Disconnect the power to the XGF868i and move the electronics enclosure to a safe area Note Ifthe electronics enclosure cannot be moved to a safe area be sure the surrounding area is free of ignitable gases before proceeding to step 2 WARNING The main pow
31. alibrating Output A However be sure to reconnect the ammeter on terminal block J2 See Figure 4 on page 10 for the correct pin numbers 3 Double click on 4 milliamps to calibrate the low end of the output range 4 Double click on 4 mA UP or 4 mA DOWN to adjust the ammeter reading UP or DOWN until a 4 mA reading is achieved or Double click on 4 mA Numeric Cal and directly enter the mA reading in the right pane 5 Once you have achieved a 4 mA reading double click on either 4 mA STORE to store the calibration or on 4 mA ABORT to exit the menu without storing the calibration Note Ifthe ammeter reading cannot be adjusted within 5 0 uA of the 4 or 20 mA setting contact the factory for assistance 6 PanaView returns to the Analog Output window Double click on 20 milliamps and repeat steps 3 through 5 to calibrate the high end of the output range Note Skip the following prompt if linearity testing of the output will not be performed at this time 7 Double click on Test to test the linearity of the currently selected analog output 8 Check the ammeter reading at 50 output Then enter a different output 0 100 and double click on percent Check the ammeter reading at this setting and press Exit Page when done Table 8 on page 45 lists the expected ammeter readings at various Full Scale settings for both 4 20 mA and 0 20 mA scales Refer to this table to verify the accuracy of the ammeter readings taken above If the
32. auses and the recommended actions When an error code is generated it will appear on the LCD as shown in Figure 5 Error Message CH1 MASS XX 4500 LB HR XGF868 gt LCD Display Figure 5 Error Message Location If an error message appears during normal operation of the Model XGF868i refer to the appropriate section of this chapter for instructions on how to proceed DigitalFlow XGF868i Service Manual 11 Chapter 2 Error Codes E0 No Error Problem No error condition currently exists Cause This message appears briefly to confirm that the response to another error message has corrected the problem Action No action is required E1 Low Signal Problem Cause Action Poor ultrasonic signal strength or the signal exceeds the limits entered via the Keypad Program Poor signal strength may be caused by a defective cable a flowcell problem a defective transducer or a problem in the electronics console A signal that exceeds the programmed limits is probably caused by the entry of an improper value in the Channelx Set up Signal submenu of the Keypad Program Using the procedures in Chapter 3 Diagnostics check the components listed above Also check the limit values entered into the Channelx Set up Signal submenu as described in Chapter 1 Programming Site Data of the Programming Manual E2 Sound Speed Error Problem Cause Action The sound speed exceeds the limits
33. ble 6 Make additional copies of the table as needed Table 6 Service Record Description of Service Performed By DigitalFlow XGF868i Service Manual 39 Appendix A Service Record Table 6 Service Record cont Description of Service Performed By 40 DigitalFlow XGF868i Service Manual Appendix A Service Record A 3 Diagnostic Parameters After a successful initial installation of the Model XGF868i and whenever any system malfunction is noticed the values for the diagnostic parameters should be entered in Table 7 Table 7 Diagnostic Parameters Parameter Initial Current Parameter Initial Current Tup Mw Tot K Td 1 DT Mi Vinst lavailable only if Burst Mode S M DigitalFlow XGF868i Service Manual 41 42 no content intended for this page DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView Appendix B Calibration and Testing with PanaView B 1 Introduction This appendix explains how to calibrate the Model XGF8681 s analog outputs and inputs using PanaView interface software In addition testing the optional totalizer frequency and alarm relay outputs and XGM hardware and software is discussed The appendix includes the following specific topics calibrating the Slot 0 analog outputs calibrating option card analog outputs calibrating option card analog i
34. bration In either case press Enter Note Ifthe ammeter reading cannot be adjusted within 5 0 uA of the 4 or 20 mA setting contact the factory for assistance 1 5 3 Calibrating the High End of the Output Range 7 The XGF868i returns to the Analog Output window Scroll to 20 mA and repeat steps 4 and 5 to calibrate the high end of the output range Note Skip the following prompt if linearity testing of the output will not be performed at this time 1 3 4 Testing Output Linearity 8 Scroll to TEST to test the linearity of the currently selected analog output Press Enter 9 Check the ammeter reading at 50 Full Scale Then use the arrow keys to enter a different Full Scale 0 100946 Press Enter when done DigitalFlow XGF868i Service Manual 3 Chapter 1 Calibration 1 3 4 Testing Output Linearity cont Table 1 lists the expected ammeter readings at various Full Scale settings for both 4 20 mA and 0 20 mA scales Refer to this table to verify the accuracy of the ammeter readings taken above Table 1 Expected Ammeter Readings 4 000 0 000 5 600 2 000 7 200 4 000 8 800 6 000 12 000 10 000 13 600 12 000 15 200 14 000 16 800 16 000 18 400 18 000 00 za E If the linearity test readings are not within 5 uA of the values listed in Table 1 check the accuracy and wiring of the ammeter Then repeat the low and high end calibrations If the analog output still does not pass the linearity test
35. ceeding place the RTD in a temperature bath and allow it to stabilize at the desired set point temperature If you have connected the RTD to an RTD simulator set the RTD simulator to the low temperature value 2 Double click on Set to program the RTD set point 3 In the right pane enter the desired set point temperature and click Next Item 4 Double click on STORE to accept the new set point value or ABORT to cancel the entry B 4 5 Entering the Slope 1 Place the RTD in a temperature bath and allow it to stabilize at the desired slope point temperature If you have connected the RTD to an RTD simulator set the RTD simulator to the high temperature value 2 Double click on Slope to program the RTD slope point 3 Inthe right pane enter the desired slope point temperature and click Next Item 4 Double click on STORE to accept the new slope point value or ABORT to cancel the entry Click Exit Page to return to the S ot 7 window and calibrate additional inputs outputs or click Exit Page again to close the Calibration Test menu 48 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView B 4 6 Testing Frequency Outputs Frequency outputs may be added to the Model XGF8681 by installing an appropriate option card in Slot 1 This option card contains two or four frequency outputs which are designated A B C and D Prepare for the testing procedure by connecting a frequency counter to Outpu
36. cket Option Card gt 31 C Calibrating See Parameter Name Calibration Values Displaying on PanaView 30 with Keypad Program ocu ety YS Calibration Test Manu cum es Fara CREE ERA 1 42 Entering Menu sic rear ka C n D exe es 42 DigitalFlow XGF868i Service Manual Index Channels Resetting Numberof 22235244 EE FS 61 Setting Number with PanaView a 6 1 5 65 akee nkan EREE Ea E 19 59 CN 19 59 Contamination 0188 21 Corrosion 17928000678 5 5 00000 ee 23 DAC TON 2 sux weed tree essi wd 55 Defaults Resetting Meter to 2 2 61 DELTA vise 43a 7 19 59 Diagnostic Parameters DISplavilig 4939 eee ATE 17 Table of Vales gt 4 Y RE a xe 41 Display yap owen sped ror 28 0 2 21 oua bore we aod a dark os dog oe 28 Display Screen Error MessaG6 4 aae kia hem ead he ae 11 Illasttalioft 222 asse e rk rre y scared iad 11 Displaying Diagnostics m eas 17 DINI d he anges teks don RE eR esed E dex d 20 60 DIS ide aoa Sek oN Ape uuu vxo es eR ados a 20 59 E EPROM Replacing cese Ra oe Wns oes oe 3 8 30 SP 30 EPROM 20 22 3 23 63 Index Error Code EO eae ead wen ebd uda dE 12 C 12 j 14 Bl UR REEF ARIES E bs 14 El iesus athe dar Sheet Seach Sloe a arte Ne doa Seid 14 E13 o EE 3 Sa RG AR on eic Xu dd 14 DA HO 14 NEDA P
37. ding jumper wire to the enclosure with the mounting screw flat washer and lock washer previously removed Be sure to install the metal label plate under this screw Refer to Illustration 2 4 From the rear of the enclosure connect the power line leads to terminal block TB5 Plug the connectors back into terminal blocks J1 J4 If necessary see Chapter 1 nstallation of the Startup Guide for detailed wiring instruction 5 Install the front and rear covers on the electronics enclosure and secure them in place with the set screws provided Refer to Illustration 1 The Model XGF868i is now ready to be placed back into service Before taking measurements with the Model XGF868i refer to Chapter 2 Initial Setup of the Startup Guide and Chapter 1 Calibration of this manual for instructions on properly setting up the meter for accurate flow rate measurements Note Be sure to enter a complete and detailed account of any parts replacement performed on the Model XGF868i in Appendix A Service Record To purchase the parts mentioned in this chapter or any items not specifically discussed contact the factory for assistance To make sure the proper components are obtained be sure to specify the serial number of the Model XGF868i at the time of purchase 34 DigitalFlow XGF868i Service Manual Chapter 4 Parts Replacement Set Screw Set Screw Rear Cover solid Illustration 1 Electronics Assembly Enclosure Assembly Mounti
38. e Output above If any of the frequency outputs fails the test contact the factory for assistance To calibrate test additional inputs outputs proceed to the appropriate section To leave the Keypad Program press Escape twice DigitalFlow XGF868i Service Manual 7 Chapter 1 Calibration no content intended for this page 8 DigitalFlow XGF868i Service Manual Chapter 1 Calibration Esc Enter Esc Keypad Pgm RESET See Programming Manual SLOTO Reset Totals Ges Slot 0 yAnalog Outputs LA Le ANALOG OUTPUT SLOT1 Slot 1 CNTRS DARKN LITEN STORE Option Card 4mA 20 mA Numer CALIBRATING mA Reading TEST Full Scale P J pown Numer STORE ABORT 3 DigitalFlow XGF868i Service Manual Slot 1 Analog Outputs LA ANALOG OUTPUT Le 4mA 20mA CALIBRATING gt Down Numer STORE ABORT mA Reading Full Scale E Slot 1 Analog Inputs Slot 1 Alarm Relays J 8 6 58 6 o press EXIT key ANALOG INPUT ALARMS
39. e nature of the problem indicates the need for factory service GE Sensing 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 Sensing 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 Sensing will evaluate the instrument to determine the cause of the malfunction Then one of the following courses of action will then be taken Ifthe damage is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned e f GE Sensing 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 DigitalFlow XGF868i Service Manual 67 Warranty no content intended for this page 68 DigitalFlow XGF868i Service Manual Customer Support Centers U S A The Boston Center 1100 Technology Park Drive Billerica MA 01821 U S A Tel 800 833 9438 toll free 978 437 1000 E mail sensing ge com Ireland Sensing House Shannon Free Zone East Shannon County Clare Ireland Tel 353 0 61 470291 E mail gesensingsnnservices ge com An ISO 9001 200
40. e the assembly until the power supply board is facing upward 3 Locate the fuse along the left side of the power supply board just below the terminal board refer to Illustration 6 in Figure 7 on page 36 4 Pull the plastic cover off the fuse holder and remove the old fuse 5 Obtain a new fuse of the same rating and type Use only a type 3AG 1 1 4 x 1 4 Slo Blo fuse having a rating as indicated in Table 4 Table 4 Line Voltages amp Fuse Ratings Line Voltage Fuse Rating 12 28 VDC 2 0 A Slo Blo 6 Press the new fuse into the fuse holder and reinstall the plastic fuse cover To complete the fuse replacement proceed to nstalling the Circuit Board Assembly on page 34 Note Be sure to record the fuse replacement in Appendix A Service Record DigitalFlow XGF868i Service Manual 29 Chapter 4 Parts Replacement 4 5 Replacing the User Program The Model XGF868i s User Program is stored on an erasable programmable read only memory EPROM chip The EPROM which is designated as component U6 is mounted in a socket on the front of the main circuit board EPROM replacement may be required to replace a defective chip or to upgrade to a newer software version To replace the User Program refer to Figure 7 on page 36 and complete the following steps 1 Complete the steps in Removing the Circuit Board Assembly on page 26 2 Place the circuit board assembly on a flat surface with the terminal board facing upward S
41. ee Illustration 7 in Figure 7 on page 36 and remove the three PCB mounting screws with flat washers and lock washers indicated This will also remove the green grounding jumper 3 Locate and unscrew a fourth smaller bracket screw close to J2 on the terminal board capturing the lock washer flat washer and bracket nut on the back side Then carefully pull the terminal board away from the main board power supply board assembly and option board 4 Remove the two screws flat washers lock washers and heat sink in the corners of the power supply board see Illustration 8 in Figure 7 on page 36 Note A XGF666i with a DC power supply will include two more mounting screws but no heat sink 5 Carefully pull up the power supply board and heat sink assembly then slide it out The U6 EPROM is located along the upper edge of the main board on the side that was facing the power supply board see Illustration 8 in Figure 7 on page 36 It is the only socketed chip on this board and it has a white identification label 6 Usinga chip puller remove the EPROM from its socket If a chip puller 1s unavailable a straightened paper clip may be used in the notches at the upper right and lower left corners of the socket Gently pry the EPROM up a little at a time at each notch until it comes free CAUTION The EPROM is easily damaged by static electricity Before handling the new chip touch a grounded metal object to discharge any built up static elect
42. eft pane of the Calibration Test window double click on Hardware Test In the center pane double click on Initialize Meter The right pane displays a Warning that all application parameters must be reentered after initialization Click Next Item to continue or Exit Page to return to the Hardware Test option In the center pane double click on Yes to Reset Meter or on No to leave the XGF8681 in its current state If you select Yes the XGF868i returns to its default settings and PanaView exits the Calibration Test menu DigitalFlow XGF868i Service Manual 57 Appendix B Calibration and Testing with PanaView B 5 3m Initializing the XGF868i to Default Values cont Note When you first initialize the XGF868i the number of LCD parameters is set to OFF You must program the LCD to display any measured parameters In the Edit Functions menu double click on the Site Edit Menu In the Site Edit Menu double click on the Global entry and then on the Input Output option From the Input Output option highlight and double click on the Display option in the center pane Be de qe pr The first prompt asks for the of LCD Parameters Double click on the desired number from OFF through 1 4 and KEY The OFF setting switches the measurement display off while the KEY setting enables users to change the measurement display via the arrow keys without accessing the Keypad Program If you select KEY e To view a parameter other than
43. em 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 homogeneous single phase and relatively clean Although a low level of entrained particles may have little effect on the operation of the Model XGF868i 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 nitrogen etc readily absorb ultrasound energy In such a case an E1 error code message will appear on the display screen to indicate that the ultrasonic signal strength is insufficient for reliable measurements 3 The gas sound speed must not vary excessively The Model XGF868i will tolerate relatively large changes in the gas sound speed as may be caused by variations in gas composition and or 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 XGF8681 will result in erratic or inaccurate flow rate readings Refer to Chapter 2 Initial Setup of the Star
44. ent that you bought has required the extraction and use of natural resources for its production It may contain hazardous substances that could impact health and the environment In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural resources we encourage you to use the appropriate take back systems Those systems will reuse or recycle most of the materials of your end life equipment in a sound way The crossed out wheeled bin symbol invites you to use those systems If you need more information on the collection reuse and recycling systems please contact your local or regional waste administration Visit http www gesensing com environment weee htm for take back instructions and more information about this initiative iv DigitalFlow XGM868i Service Manual Contents Chapter 1 Calibration 11 1 2 1 5 1 4 1 5 1 6 WONG WON PRENNE E RR 06 1 Accessingithe Calibration 0 0 000 0055 3 00 00 58 1 Cdlibrating and Testing Ane QUEDEUES gt dte o REOF CES PASE TREE I E VE RPRE EPI KE re E paT Ee 2 13 1 Preparing tor CallEO EGER oa cardo t Uia icta rU eee FEEFET ER Ee ER EFI FI etl prae Ee bat E 2 1 3 2 Calibrating the Low End or the Output Range pp 3 1 3 3 Calibrating the High End of the Output Range 60 cece cence een nee ee 3 1 3 4 Testing Output DIFIGOEIV iia xacondoncoe Cada d ober aa ol AG ICE E rt o ach Rol RH DRE Race
45. er to the Model XGF868i must be disconnected before proceeding 2 Refer to Illustration 1 in Figure 6 on page 35 Loosen the set screw on the rear cover Place a rod or long screwdriver across the cover in the slots provided and rotate the cover counterclockwise until it comes free from the enclosure 3 Repeat Step 2 to remove the front cover 26 DigitalFlow XGF868i Service Manual Chapter 4 Parts Replacement 4 2 Removing the Circuit Board Assembly cont 4 From the rear of the enclosure disconnect the power line leads from terminal block TB5 Unplug terminal blocks TBI to TB6 from connectors J1 J4 5 Referto Illustration 2 in Figure 6 on page 35 and remove the four terminal board mounting screws and the ground screw This will disconnect one end of the green grounding jumper wire and the label plate with the ground symbol will come loose from beneath it IMPORTANT Each screw will have a flat washer and a lock washer over it Be careful not to lose these washers 6 Carefully rotate the circuit board assembly counterclockwise about 20 until the five bosses in the enclosure are visible through the slots along the circumference of the terminal board Then slowly push the circuit board assembly through the enclosure and remove it from the front of the enclosure Refer to Illustration 3 in Figure 6 on page 35 Bring the circuit board assembly to a clean safe work area and proceed to the appropriate section of this chapter t
46. ft and right arrow keys to move among characters and the up and down arrow keys to alter each character until the string is FRIG plus the number of channels that is FRIGI or FRIG2 Press Enter The XGF868i reinitializes with factory default settings and displays the message Review meter settings Since the default for the meter display is OFF you will need to enter the Keypad Program to reset the LCD as described below 3 Press Escape Enter Escape 4 Inthe Keypad Program window scroll to PROG and press Enter 5 Inthe PROG menu scroll to GLOBL and press Enter 6 Scroll to I O and press Enter DigitalFlow XGF868i Service Manual 61 Appendix C Factory Tests C 3 Resetting the XGF868i to Factory Defaults cont 7 Scroll to LCD and press Enter 8 The window now asks for the of LCD Parameters Scroll to the desired number from OFF through 1 4 and KEY and press Enter 9 Scroll to the desired Channel option as listed in Table 11 Table 11 Channel Options CH1 Channel 1 CH2 Channel 2 SUM CH1 CH2 DIF CH1 CH2 AVE CH1 CH2 2 10 For each channel select the desired Measurement Parameter as shown in the Programming Manual Note The measurement units that appear in these prompts are those selected in the GLOBL SYSTM menu The previous two prompts repeat until all of the specified of LCD Parameters have been set up When all of the display parameters have been
47. gure 4 on page 10 to identify the IN and RTN pins for the desired input on terminal block J2 Note The zero point of the analog input may be set for either 0 mA or 4 mA However the calibration always uses the 4 mA point as the meter extrapolates this value to obtain the 0 mA point 1 4 2 Accessing the Calibration Test Menu 1 From the Keypad Program press the right arrow key to scroll to the CALIB menu Press Enter 2 Inthe Cal window scroll to Slot 1 Press Enter 3 Scroll to the desired nput to open the ANALOG INPUT menu Input A will be used as an example in this manual Press Enter IMPORTANT Calibrating Input B C or D is identical to calibrating Input A However be sure to reconnect the current source on terminal block J2 Refer to Figure 4 on page 10 for the correct pin numbers 4 Scroll to the appropriate option to select the reference point to be calibrated Press Enter IMPORTANT 77e procedure for calibrating all the inputs is the same However when calibrating a different input be sure to reconnect the current source at terminal block J2 See Figure 4 on page 10 for the correct pin numbers 5 Doone ofthe following Proceed to lt Title Font 4 mA Option on page 5 e Proceed to lt Title Font 20 mA Option on page 5 1 420 4 mA Option Set the calibrated current source to 4 mA Ifyou selected the 4 mA option in the ANALOG INPUT menu scroll to STORE to accept the current 4 mA value or on ABOR
48. gure 8 on page 37 and follow the instructions in this section to assemble the circuit board assembly and or to install it in the electronics enclosure 4 7 1 Assembling the Circuit Board Assembly If the circuit board assembly has been disassembled to any degree complete the steps below Otherwise proceed directly to Installing the Circuit Board Assembly on page 34 See Figure 8 on page 37 and complete the following steps 1 Ifnecessary replace the angle bracket on the main board insert the screw with flat washer and lock washer and screw it into the standoff on the main board See Illustration 11 in Figure 8 on page 37 IMPORTANT The small angle bracket on the terminal board must be positioned on the outside of the main board with the previously removed nylon washer between them 2 Face the User Program side of the main board toward the rear of the power supply board Orient the boards so that the pins along the bottom of the main board align with connectors J2 and J6 on the power supply board and push the two boards firmly together 32 DigitalFlow XGF868i Service Manual Chapter 4 Parts Replacement 4 7 1 Assembling the Circuit Board Assembly cont Note Ifthe thermal gap filler pad of the power supply board has been damaged you must remove and replace it before reinserting the power supply board First remove and discard the damaged pad Then remove the blue protective liner from the new pad and apply it with the white f
49. h PanaView B 3 Calibrating Slot 0 Analog Outputs cont Table 8 Expected Ammeter Readings Full Scale 15 200 14 000 16 800 16 000 18 400 18 000 100 20 000 20 000 all ammeter readings should be 0 005 mA If the linearity test readings are not within 5 uA of the values listed in Table 8 check the accuracy and wiring of the ammeter Then repeat the low and high end calibrations If the analog output still does not pass the linearity test contact the factory for assistance Full Scale a 30 40 50 60 00 10 Double click on Exit Function to return to the Calibration menu Then choose another output to calibrate or click on Exit Page to leave the Calibration Test menu This completes calibration of the Slot 0 analog outputs Proceed to the appropriate section to calibrate additional inputs outputs B 4 Calibrating Slot 1 Option Cards To calibrate any option card installed in Slot 1 of the XGF8681 enter the Calibration Test menu as shown in Figure 10 on page 42 1 Inthe center pane double click on Slot 1 Note The Slot 1 option only appears in the center pane if an option card has been installed in this slot Notice that all of the available outputs usually four appear at the above prompt The desired type of output may appear as the A and B output pair and or as the C and D output pair Simply select the appropriate output for calibration and or testing For clarity in thi
50. he XGF868i be sure you have linked your PC to the XGF866i via an RS232 interface For details on wiring the interface refer to Wiring the Serial Port in the Startup Guide and to the document EIA RS Serial Communications 916 054 You must also install PanaView as discussed in the PanaView User s Manual 910 211 Power up the XGF8681 and wait until it has initialized Launch PanaView and wait until it initializes the XGF8681 and displays the basic PanaView window As described in the PanaView User Manual open the Meter Browser window and highlight the XGF8681 Expand the Edit Functions option The window now appears similar to that shown in Figure 9 E m XGF868i Y4DF STD D Channel 1 4D Channel 2 Edit Functions 7 SITE EDIT MENU 1 CALIBRATION TEST 1 PAUSE MEASUREMENT Figure 9 Menus in the Edit Functions Option 5 To enter data into the user program double click on the Calibration Test menu The window appears similar to Figure 10 iw CALIBRATION TEST x TEST Calibration i Previous Item Signal array upload Upload X GM memory Hardware test Next Item Figure 10 The Calibration Test Menu Proceed to the appropriate sections of this appendix to calibrate and or test any of the installed inputs and or outputs 42 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView B 3 Calibrating Slot 0 Analog Outputs Every Model XGF868i flowmeter includes
51. ion card See Figure 4 on page 10 to identify the IN and RTN pins for Input A on terminal block J2 Note The zero point of the analog input may be set for either 0 mA or 4 mA However the calibration procedure always uses the 4 mA point as the meter will extrapolate this value to obtain the 0 mA point 1 Inthe center pane of the Calibration Test window double click on Slot 1 2 Double click on the desired input to open the Analog Input menu Input A will be used as an example in this manual IMPORTANT Calibrating Inputs B C or D is identical to calibrating Input A However be sure to reconnect the current source on terminal block J2 Refer to Figure 4 on page 10 for the correct pin numbers 3 Double click on the appropriate option to select the reference point to be calibrated Proceed to the corresponding sub section for specific instructions on each of the options available in step 3 B 42a 4mA Option Set the calibrated current source to 4 mA e Ifyou selected the 4 mA option in the Analog Input menu double click on Store to accept the current 4 mA value or on Abort to cancel the entry In either case the Analog Input prompt reappears 8 4 20 20 mA Option Set the calibrated current source to 20 mA Ifyou selected the 20 mA option in the Analog Input menu double click on Store to accept the current 20 mA value or on Abort to cancel the entry In either case the Analog Input prompt reappears Click Exit Page
52. ith an indication as to whether the RAM is functioning Click Next Item or Exit Page to return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu B 5 3d FIFO Test To check the FIFO Note Ifyou are in the Hardware Test option skip to step 2 1 From the left pane of the Calibration Test window double click on Hardware Test 2 Inthe center pane double click on FIFO TEST 3 Inthe right pane a message lists the desired number of bits along with the approximate bias and the average sample Click Next Item to perform the test and return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu 54 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView B 5 3e LCD Test To test the LCD Note Ifyou are in the Hardware Test option skip to step 2 1 From the left pane of the Calibration Test window double click on Hardware Test 2 Inthe center pane double click on LCD TEST 3 The LCD display flashes three times while a message in the PanaView right pane displays the test values Click Next Item or Exit Page to return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu B 5 3f LCD Contrast To change the LCD contrast Note Ifyou are in the Hardware Test option skip to step 2 1 From the left pane of the Calibration Test window double click on Hardware Tes
53. lays the gas temperature from 0 4 20 mA input PRESR Displays the gas pressure from 0 4 20 mA input Displays the molecular weight Displays actual balnei flow Displays standard volumetric flow Displays Skan transit time upstream DigitalFlow XGF868i Service Manual 19 Chapter 3 Diagnostics Table 3 Available Diagnostic Parameters cont Option Bar Description Displays Skan Delta T Displays Measure transit time upstream Displays Measure transit time downstream Displays Measure Delta T Displays the instantaneous velocity lavailable only if Burst Mode S M 20 DigitalFlow XGF868i Service Manual Chapter 3 Diagnostics 3 3 Flowcell Problems If preliminary troubleshooting with the Error Code Messages and or the Diagnostic Parameters indicates a possible flowcell problem proceed with this section Flowcell problems fall into two categories gas problems e pipe problems Read the following sections carefully to determine if the problem is indeed related to the flowcell If the instructions in this section fail to resolve the problem contact the factory for assistance 3 3 1 Gas Problems Most gas related problems result from a failure to observe the flowmeter system installation instructions as described in the Startup Guide Refer to Chapter 1 Installation of the Startup Guide to correct any installation problems If the physical installation of the syst
54. linearity test readings are not within 5 uA of the values listed in the table check the accuracy and wiring of the ammeter Then repeat the low and high end calibrations If the analog output still does not pass the linearity test contact the factory for assistance Click Exit Page to return to the Slot 7 window and calibrate additional inputs outputs or click Exit Page again to close the Calibration Test menu 46 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView B 4 2 Analog Inputs Analog inputs may be added to the Model XGF868i by installing an appropriate option card in Slot 1 This option card contains two or four analog inputs which are designated as A B C and D Both the zero point and full scale values for each input must be calibrated Calibration of the analog inputs requires the use of a calibrated current source If an independent calibrated current source is not available one of the Slot O analog outputs may be used for the calibration During the analog input calibration the Slot 0 analog output will supply the low reference high reference 4 mA and 20 mA signals at the appropriate times IMPORTANT Jfa Slot 0 analog output will be used to calibrate the analog inputs the Slot 0 analog output calibration procedure must be completed first Prepare for the calibration procedure by connecting a Slot 0 analog output or independent calibrated current source to Input A of the opt
55. moving the Circuit Board Assembly pp 26 Replacing the LCD Display Interconnect Board Subassembly esses 28 misse the FUSER MER A 29 Replacing the User Progra MIT 30 aM OPON CAA MER RE EET T E 31 IE 32 00222221222222222 Attaching an Optional Heat Sink to an I O Option Card 4 6 1 Assembling Installing the Circuit Board Assembly n 32 32 0 Assembling the Circuit Board Assembly 4 7 1 Zinsteling the Circ it Board ASSEM Dl Y ad as ose RUE a a aiia 34 5 Appendix A Service Record 39 0 0000 Tense Om 39 Ses Diagnostic 2 1 P P 41 A 3 Appendix B Calibration and Testing with PanaView B 1 B 2 B 3 B 4 B 5 ANIME ER RTE ETE E DTE 7 41 42 5 3 270 00 Accessing the Calibration Test Menu oa ars Cob ating Slot O Analog OLUBOBES aad eit RAUM PCIE 7 AREA pua tan 45 Calibrating Slot 1 Option GOES o dece d bee re FE ada UE EAR NC EU ex Ead re S PRO I bid 45 B41 Analog OUTPUTS i iiaia r E a edd eri cA ROLL Eo LE edes 46 BAZ FACOG ADUS eeren e a a 47 e a dea awn Op 5 0 47 Ld 2 BA 2a 4 MA OpUoOD PO RU e eet Me 5 0 0 EEE amu ds 47 B 4 2b 20 mA Option 5 i nere oe BA SRTO IMPUI eeen Oe E bes E te PR EE E E A E a aoe 48 48 8 0000
56. ne 61 DigitalFlow XGF868i Service Manual V Contents vi DigitalFlow XGF868i Service Manual Chapter 1 Calibration Chapter 1 Calibration 1 1 Introduction Calibrating the Model XGF8681 s analog outputs and inputs is explained in this chapter In addition testing the optional totalizer frequency and alarm relay outputs is discussed The chapter includes the following specific topics calibrating the Slot O and Slot 1 analog outputs page 2 calibrating option card analog inputs page 4 calibrating option card RTD inputs page 6 testing option card frequency outputs page 7 Note Convention in this manual identifies any expansion slot as Slot x where x is a number from 0 2 Slot 2 is used only for data logging MODBUS or HART option cards See Chapter 1 nstallation and Appendix B Data Records in the Startup Guide for a complete description of the available option cards and the procedures for wiring them 1 2 Accessing the Calibration Menu The Calibration menu is accessible through the Keypad Program as well as through PanaView software If you are using PanaView to calibrate the XGF868i refer to Appendix B Use this menu to calibrate and test the Slot 0 analog outputs as well as to calibrate and or test any option cards that are installed in expansion Slot 1 Refer to the menu maps in Figure 3 on page 9 as a guide in following the calibration instructions 1 Power up the XGF868i and wait u
57. ng Screw with Washer Assembly 4 places Terminal Block on TB1 Slot 2 Option Card Figure 6 Model XGF868i Electronics Console Assembly o0 6 o o o o o o o aooo Ground Screw 006 ooO0000000000 o o o o 0 6 O o oO o oO o O o Label Plate with Ground Symbol Grounding Jumper Wire Illustration 2 Illustration 3 DigitalFlow XGF868i Service Manual 33 Chapter 4 Parts Replacement Y P1 Connector P2 Connector J1 Connector J2 Connector Illustration 4 shown with heatsinks removed for clarity Screw Lock Washer and Flat Washer 2 places LCD Display and P6 Connector Interconnect Board male Illustration 5 DigitalFlow XGF868i Service Manual LCD Display Keypad Board and Interconnect Board Sub Assembly i aa P4 Connector J4 Connector Mounting Screw and Washer Assembly 3 places P9 Connector on Terminal Board connects to J10 Connector on Main Board Green Grounding Jumper P10 Connector on Terminal Board connects to J9 Connector on Main Board Terminal Board E J6 J7 Connector on Terminal Board connects to Power Tab on Power Supply Board P7 Connector on Terminal Board connects to J7 Connector on Main Board Standoff x Keypad Board J1 Connector female m di
58. nputs and RTD inputs testing option card alarm relays testing option card totalizer and frequency outputs uploading XGF868i signal array data and memory data testing the EPROM RAM and DAC setting the number of channels e resetting the XGF8681 to default values The Model XGF868i electronics enclosure includes one slot for installation of an input output option card This slot is designated as Slot 1 and a variety of option cards are available In addition every Model XGF8681 flowmeter includes two built in analog outputs A and B at terminal block J1 which is designated as Slot 0 Note Convention in this manual identifies any expansion slot as Slot X where X is a number from 0 2 Slot 2 is used only for communication cards See Chapter 1 nstallation and Appendix B Data Records in the Startup Guide for a complete description of the available option cards and the procedures for wiring them DigitalFlow XGF868i Service Manual 41 Appendix B Calibration and Testing with PanaView B 2 Accessing the Calibration Test Menu The Calibration Test menu is accessed through the New Meter Browser menu of PanaView software Use this menu to calibrate and test the Slot O analog outputs as well as to calibrate and or test any option cards that are installed in expansion Slot 1 Refer to the menu maps in Figure 3 on page 9 as a guide in following the calibration instructions IMPORTANT Before you attempt to communicate with t
59. ntil it has initialized 2 Press the Escape Enter Escape keys The Keypad Program appears on the screen 3 Press the right arrow key to scroll to the CALIB menu Press Enter The Cal window opens Proceed to the appropriate sections of this chapter to calibrate and or test any of the installed inputs and or outputs Note The Calibration menu never returns to the Keypad Program Pressing Escape to exit the menu causes the XGF 66i to restart DigitalFlow XGF868i Service Manual 1 Chapter 1 Calibration 1 3 Calibrating and Testing Analog Outputs Every Model XGF868i flowmeter includes two built in analog outputs A and B at terminal block J1 which is designated as Slot 0 Additional analog outputs may be added to the Model XGF868i by installing an appropriate option card in Slot 1 This option card contains two analog outputs which are also designated as A and B Before beginning calibration an ammeter must be connected to the desired analog output Both the zero point and full scale values for all of these outputs must be calibrated After calibrating the outputs which have a resolution of 5 0 uA 0 03 full scale their linearity should be tested Note The zero point of the analog output may be set at either 0 mA or 4 mA However the calibration always uses the 4 mA point as the meter extrapolates this value to obtain the 0 mA point 1 3 1 Preparing for Calibration Prepare for calibration by inserting an ammete
60. o perform the desired service procedure DigitalFlow XGF868i Service Manual 27 Chapter 4 Parts Replacement 4 5 Replacing the LCD Display Interconnect Board Subassembly The LCD display normally provides years of dependable service but it is easily field replaceable when necessary To replace the LCD display see Figure 7 on page 36 for the component locations and complete the following steps 1 2 Complete the steps in Removing the Circuit Board Assembly on page 26 Place the circuit board assembly on a flat surface with the LCD display board facing upward Refer to Illustration 4 in Figure 7 on page 36 and remove the three mounting screws with flat washers and lock washers indicated Grasp the LCD display keypad board interconnect board subassembly at the top and bottom edges and carefully pull it straight upward until it comes free from the main board and option boards Refer to Illustration 5 in Figure 7 on page 36 Remove two screws from the back of the interconnect board Then hold the edge of the keypad board by one hand and the edge of the LCD display interconnect board by the other hand and pull the two boards apart Note The two circuit boards are attached by a connector located beneath the top edge of the LCD display board see Illustration 5 in Figure 7 on page 36 The LCD display is attached to the interconnect board as one subassembly Do not disassemble the LCD display from the interconnect board Place
61. oading the XGM memory Ifyou double click on 7o Display the right pane of the window appears similar to Figure 14 and the data is available for immediate evaluation Click Exit Page to close the window and return to the Calibration Test menu iw CALIBRATION TEST Calibration Signal array uploac UPLOAD NOW TO DISPLAY HEX BYTES 0064 HEX START ADDRESS 00000000 Exit Page Figure 14 XGF868i Memory Data Displayed on PanaView e f you double click on To File the Save As window similar to Figure 13 on page 51 opens Enter a file name and click Save PanaView stores the array data in a Windows file and closes the Calibration Test window 52 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView B 5 3 Testing XGF868i Hardware Using PanaView you can check crucial elements of the XGF8681 hardware the EPROM the NVR the RAM FIFO and the DAC You can also program and test optional cards read site checksums and calibration values e test and set the contrast for the LCD e set the number of channels either 1 or 2 and e reinitialize the XGF8681 to its default values IMPORTANT Contact GE if the XGF868i fails any of the tests covered below B 5 3a EPROM Test To test the EPROM from the Calibration Test menu 1 From the left pane of the Calibration Test window double click on Hardware Test 2 Inthe center pane double click on EPROM TEST 3 The right pane displa
62. quipment Local Safety Standards The user must make sure that he operates all auxiliary equipment in accordance with local codes standards regulations or laws applicable to safety Working Area WARNING Auxiliary equipment may have both manual and automatic modes of operation As equipment can move suddenly and without warning do not enter the work cell of this equipment during automatic operation and do not enter the work envelope of this equipment during manual operation If you do serious injury can result WARNING Make sure that power to the auxiliary equipment is turned OFF and locked out before you perform maintenance procedures on the equipment Qualification of Personnel Make sure that all personnel have manufacturer approved training applicable to the auxiliary equipment Personal Safety Equipment Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary equipment Examples include safety glasses protective headgear safety shoes etc Unauthorized Operation Make sure that unauthorized personnel cannot gain access to the operation of the equipment DigitalFlow XGF868i Service Manual iii Preface Environmental Compliance Waste Electrical and Electronic Equipment WEEE Directive GE Measurement amp Control Solutions is an active participant in Europe s Waste Electrical and Electronic Equipment WEEE take back initiative directive 2002 96 EC The equipm
63. r in series with the load on the desired output Refer to Figure 1 and Figure 4 on page 10 to identify the OUT and RTN pins for the desired output Terminal Block J1 Slot 0 4 B B RTN SIG Ammeter Figure 1 Ammeter Connection Output A 2 DigitalFlow XGF868i Service Manual Chapter 1 Calibration 1 3 2 Calibrating the Low End of the Output Range 1 From the Keypad Program press the right arrow key to scroll to the CALIB menu Press Enter 2 Inthe Cal menu scroll to the S ot 0 or Slot 1 option and press Enter Note The Slot 1 option only appears in the menu if an option card has been installed in this slot 3 Scrollto either Output A or Output B to open the Analog Output menu Output A will be used as an example in this manual Press Enter IMPORTANT The procedure for calibrating Output B is identical to that for calibrating Output A However when calibrating Output B be sure to reconnect the ammeter on terminal block J1 See Figure 1 on page 2 for the correct pin numbers 4 Scroll to 4 mA to calibrate the low end of the output range Press Enter 5 Scroll to UP or DOWN to adjust the ammeter reading UP or DOWN until a 4 mA reading is achieved or Scroll to Numer and directly enter the mA reading In either case press Enter to confirm the entry 6 Once you have achieved a 4 mA reading scroll to either STORE to store the calibration or to ABORT to exit the menu without storing the cali
64. rew should be used at the angle bracket location and secured with a nut lock washer and flat washer Proceed to the next section for instructions on installing the reassembled circuit board assembly in the electronics enclosure DigitalFlow XGF868i Service Manual 33 Chapter 4 Parts Replacement 4 7 2 Installing the Circuit Board Assembly Be sure that the circuit board assembly is completely assembled as described in the previous section Then refer to Illustrations 1 2 and 3 in Figure 6 on page 35 and install the circuit board assembly into the electronics enclosure as follows 1 Slide the terminal board end of the circuit board assembly into the front of the electronics enclosure By aligning the slots around the circumference of the terminal board with the bosses inside the enclosure guide the circuit board assembly into the enclosure until the terminal board just clears the bosses at the rear of the enclosure Refer to Illustration 3 2 From the rear of the enclosure rotate the circuit board assembly about 20 clockwise so that the mounting holes in the terminal board are positioned over the tapped holes in the bosses Secure the circuit board assembly to the enclosure with four mounting screws flat washers and lock washers previously removed Refer to Illustration 2 IMPORTANT Jf the circuit board assembly is inserted too far into the enclosure it cannot be rotated properly 3 Attach the loose end of the green groun
65. ricity and avoid touching the leads on the side of the chip 7 Make sure that the beveled corner on the new EPROM is aligned with the beveled corner of the socket and place the EPROM into the socket 8 Byapplying equal pressure on all four corners gently press the EPROM into the socket until it is fully seated Do not strike the EPROM or apply excessive force during this procedure Complete the User Program replacement by proceeding to Assembling the Circuit Board Assembly on page 32 30 DigitalFlow XGF868i Service Manual Chapter 4 Parts Replacement 4 6 Installing an Option Card The Model XGF868i flowmeter can accommodate up to two option cards A communication card may be installed in Slot 2 and a variety of I O option cards are available for installation in Slot 1 To install an option card see Illustrations 9 10 and 11 in Figure 8 on page 37 and complete the following steps 1 Complete the steps in the Removing the Circuit Board Assembly section on page 26 2 Remove the terminal board from the main board power supply board subassembly by completing Steps 1 3 in Replacing the User Program on page 30 3 Remove the screw from the angle bracket on the main board as shown in Illustration 11 in Figure 8 on page 37 Note Do not lose the nylon washer located between the small angle bracket on the terminal board and the main board 4 Ifnecessary remove any option card and optional I O heat sink currently in use
66. rminal block J1 See Figure 11 on page 43 for the correct pin numbers 4 Double click on 4 milliamps to calibrate the low end of the output range 5 Double click on 4 mA UP or 4 mA DOWN to adjust the ammeter reading UP or DOWN until a 4 mA reading is achieved or Double click on 4 mA Numer and directly enter the mA reading in the right pane 6 Once you have achieved a 4 mA reading double click on either 4 mA STORE to store the calibration or on 4 mA ABORT to exit the menu without storing the calibration Note Ifthe ammeter reading cannot be adjusted within 5 0 uA of the 4 or 20 mA setting contact the factory for assistance 7 PanaView returns to the Analog Output window Double click on 20 milliamps and repeat steps 5 and 6 to calibrate the high end of the output range Note Skip the following prompt if linearity testing of the output will not be performed at this time 8 Double click on Test to test the linearity of the currently selected analog output 9 Check the ammeter reading at 50 output Then enter a different output 0 100 and double click on percent Check the ammeter reading at this setting and click Exit Page when done Table 8 on page 45 lists the expected ammeter readings at various Full Scale settings for both 4 20 mA and 0 20 mA scales Refer to this table to verify the accuracy of the ammeter readings taken above 44 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing wit
67. s chapter the desired outputs are always placed in the A and B positions and the C and D positions are not specifically listed In addition Output A 1s always used as an example Proceed to the appropriate sub section for specific instructions and substitute the correct output letter for the A shown in the procedures DigitalFlow XGF868i Service Manual 45 Appendix B Calibration and Testing with PanaView B 4 1 Analog Outputs Additional analog outputs may be added to the Model XGF8681 by installing an appropriate option card in Slot 1 This option card contains two or four analog outputs which are designated as A B C and D Both the zero point and full scale values for each output must be calibrated After calibrating the outputs which have a resolution of 5 0 pA 0 03 full scale their linearity should be tested Note The zero point of the analog output may be set for either 0 mA or 4 mA However the calibration procedure always uses the 4 mA point as the meter will extrapolate this value to obtain the 0 mA point Prepare for calibration by inserting an ammeter in series with the load on Output A of the option card See Figure 4 on page 10 to identify the OUT and RTN pins for Output A on terminal block J2 2 Double click on either Output A or Output B to open the Analog Output menu Output A will be used as an example in this manual IMPORTANT The procedure for calibrating Output B is identical to that for c
68. set up the meter returns to the Global MO window To leave the Keypad Program press the Escape key three times After leaving the Keypad Program the XGF868i will reset itself and will begin to display the parameters specified in this section If more than one parameter was set up each of the parameters will be displayed in sequence with a pause of several seconds between display changes 62 DigitalFlow XGF868i Service Manual Symbols MASS iasudha dota a4 Seg dr de dade a aid 19 59 SPOTE 222 dad baie ne a re err ed 19 59 A Acceleration Error E6 2 nananana 13 19 59 Ammeter in 0281107800 2 PPO uu od we ed SENS AES REPAS 19 59 Amplitude Error BS cons sus e x REX FERRE de 13 PW o Tr 19 59 Analog Inputs 20 0 TT TITEL T T 5 47 A iA Opal cuoi nuu ur y wes Kee 5 47 Option Card Calibrating 4 lt 5 cen x 4 Analog Output Error ET 2 csse x e RS 13 Analog Outputs Option Card 6 gt 2 2 ico o PME 2 Analog Outputs Slot 0 Ammeter Readings 4 4 44 46 As Calibrated Current Source 4 47 48 Calibrating a ecd yu cue oe ee oe E ek 43 Eu Ee eee cohen end 43 re asa eraee nae ei aE 43 Analog Outputs Option Card Calibrating caudae a aed ror d qun e ataca 46 Calibrating with PanaView 47 48 24 ea ia 46 47 48 Resolution 0 0 0 0c eee eee ee 46 47 48 WV 01 2 acest eel wp ER 61 B Bra
69. several seconds between display changes 18 DigitalFlow XGF868i Service Manual Chapter 3 Diagnostics 3 2 Displaying Diagnostic Parameters cont Table 3 Available Diagnostic Parameters ood ad VEL Displays the forward totalized volume flow Displays the reverse totalized volume flow Displays the total flow measurement time Displays the forward totalized mass flow Displays the reverse totalized mass flow Displays the SIDON strength for the upstream transducer Displays the measured speed of sound in the gas Displays the upstream ultrasonic signal transit time Displays the downstream ultrasonic signal transit time Tot K Displays the total number of K factors PEAK96 Displays the percentage of peak set to 50 by default Displays the signal quality for the upstream transducer Displays the signal quality for the downstream transducer 51200 400 to 400 AMPup Displays the value for the signal amplitude of the upstream 24 5 19 or gt 29 transducer EUR Displays the value for the signal amplitude of the downstream Darn transducer Displays the AGC DAC count for the upstream gain setting Displays the AGC DAC count for the downstream gain setting N A N A Displays signal peaks for the upstream transducer 100 2300 lt 100 or gt 2300 Displays signal peaks for the downstream transducer 100 2300 lt 100 or gt 2300 TEMP Disp
70. t 2 Inthe center pane double click on LCD CONTRAST 3 Double click on Darken or Lighten to shift the LCD contrast 4 When you have achieved the desired contrast double click on Store to save the contrast or on Abort to return to the Hardware Test menu without changing the contrast B 5 3g DAC Test To test the DAC digital to analog converter Note Ifyou are in the Hardware Test option skip to step 2 1 From the left pane of the Calibration Test window double click on Hardware Test 2 Inthe center pane double click on DAC TEST 3 Thecenter pane indicates whether or not the Zero Scale is functioning Click Next Item or Exit Page to return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu B 5 3h Site Checksums To display the site checksums Note Ifyou are in the Hardware Test option skip to step 2 1 From the left pane of the Calibration Test window double click on Hardware Test 2 Inthe center pane double click on SITE CHECKSUMS 3 The right pane displays a list of site checksum values Click Next Item or Exit Page to return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu DigitalFlow XGF868i Service Manual 55 Appendix B Calibration and Testing with PanaView B 5 3i Calibration Values To display the calibration values Note Ifyou are in the Hardware Test option skip to step 2 1 2 3 From the
71. t A of the option card See Figure on page 6 for frequency output wiring and Figure 4 on page 10 to identify the OUT and RTN pins for Output A on terminal block J2 1 Inthe center pane of the Calibration Test window double click on Slot 1 2 Double click on the desired output to open the Frequency Output menu Output A will be used as an example in this manual IMPORTANT The procedure for testing Outputs B C or D is identical to that for testing Output A However be sure to reconnect the frequency counter on terminal block J2 See Figure 4 on page 10 for the correct pin numbers 3 Atthe Frequency prompt enter a frequency between 1 and 10 000 Hz and click Next Item Verify that the frequency counter reads the correct value 4 Repeat steps 2 and 3 to test all of the available frequency outputs If any of the frequency outputs fails the test contact GE for assistance Click Exit Page to return to the S ot 7 window and calibrate additional inputs outputs or click Exit Page again to close the Calibration Test menu DigitalFlow XGF868i Service Manual 49 Appendix B Calibration and Testing with PanaView B 5 Testing XGF868i Software and Hardware In addition to calibration procedures for input and output cards the Calibration Test menu offers tests for XGF868i hardware and procedures for uploading signal array data and XGM memory contents into PC files for examination To test XGF8681 hardware and software
72. t flowcell that is known to be good Check the transducers and relocate them If necessary See Chapter 3 Diagnostics for further instructions E5 Amplitude Error Problem The signal amplitude exceeds the limits programmed in the Channelx Set up Signal submenu of the Keypad Program Cause Excessive levels of an attenuating gas such as CO may be present in the flowcell Solid or liquid particulates may be present in the flowcell Action Refer to Chapter 3 Diagnostics to correct any flowcell problems E6 Cycle Skip Accel Problem The acceleration exceeds the limits programmed in the Channelx Set up Signal submenu of the Keypad Program Cause This condition is usually caused by poor flow conditions or improper transducer alignment Action Refer to Chapter 3 Diagnostics to correct any flowcell and or transducer problems E7 Analog Out Error Problem The current in the analog output circuit exceeds the limits for the analog output port Cause The output load exceeds the specified limits for the analog output port Action Make sure the output load is 600 ohms for the Slot 0 analog outputs or is 1 000 ohms for an analog outputs option card in Slot 1 E8 Temperature In Problem This message indicates a temperature input error Cause The temperature exceeds the specified limits for the analog RTD inputs option card or no input device is connected Action Check the temperature transmitter and the connecting
73. the keypad board directly over the new LCD display interconnect board subassembly and align the J1 connector on the rear of the keypad board with the P6 pins on the interconnect board Firmly push the two boards together until the interconnect board contacts the two standoffs on the keypad board Secure the keypad board to the interconnect board with the two screws flat washers and lock washers previously removed Firmly insert and seat the complete assembly by aligning the P4 connector on the interconnect board to the J4 connector on the main board and the P1 and P2 connectors to any option card as applicable Replace the three screws removed in step 2 while referring back to Illustration 4 in Figure 7 on page 36 Complete the LCD display interconnect board subassembly replacement by proceeding to Installing the Circuit Board Assembly on page 34 28 DigitalFlow XGF868i Service Manual Chapter 4 Parts Replacement 4 4 Replacing the Fuse Note This procedure applies only to the fuse on the DC power supply The fuse on the AC power supply is not field replaceable please consult the factory for replacement If it has been determined that the fuse in the XGF8681 has been blown complete the following steps to install a new fuse 1 Complete the steps in Removing the Circuit Board Assembly on page 26 2 Place the circuit board assembly on its side with the terminal board on the left and the interconnect board on the right Rotat
74. the one currently displayed press the A or V keys to scroll through the various parameters e To scroll through the channel options on a two channel XGF868i press the lt or gt keys until you have reached the desired option 5 Scroll to the desired Channel option as listed in Table 9 Table 9 Channel Options Option CH1 Channel 1 Channel 2 CH1 CH2 CH1 CH2 CH1 CH2 2 6 For each channel select the desired Measurement Parameter as shown in Table 10 on page 59 7 Repeat steps 3 and 4 for each parameter PanaView returns to the Global MO menu 58 DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView Table 10 Available Measurement Parameters Description Displays the flow velocity Option Bar VEL VOLUM Displays the volumetric flow TOTL Displays the forward totalized volume flow A A TOTL Displays the reverse totalized volume flow TIME Displays the total flow measurement time MDOT Displays the mass flow MASS Displays the forward totalized mass flow N A N A N A N A N A N A N A N A MASS Displays the reverse totalized mass flow SS up Displays the signal strength for the upstream transducer lt 50 or gt 75 SS do Displays the signal strength for the downstream transducer lt 50 or gt 75 SNDSP Displays the measured speed of sound in the gas Tup Displays the upstream ul
75. ther the volumetric or mass flow calculations Action Select larger measurement units or a shorter time interval for the current measurement parameter For example choose KSCF M instead of SCF M in the Channelx System menu See Chapter 2 Initial Setup of the Startup Guide for instructions E14 Totals Overflow Problem The totalizers are unable to keep up with the total accumulated flow signals Cause The programmed units pulse value is too small Action Select a larger number of units pulse value 14 DigitalFlow XGF868i Service Manual Chapter 2 Error Codes E15 Equation Limit Problem The meter cannot resolve the molecular weight of the gas based on the measured sound speed temperature pressure and N concentration Note The mw reading will appear as 2 0e3 or 3 0e3 in order to flag this condition Cause One or more of the above measurements must be incorrect Action Verify the pressure and temperature readings are correct Verify the programmed or input nitrogen concentration is correct Verify that the acoustic transit time measurements are operating properly and that the programmed path and axial length dimensions are correct DigitalFlow XGF868i Service Manual 15 Chapter 2 Error Codes 16 DigitalFlow XGF868i Service Manual Chapter 3 Diagnostics Chapter 3 Diagnostics 3 1 Introduction This chapter explains how to troubleshoot the Model XGF8681 if problems arise with the electronics
76. this slot 3 Scroll to the desired nput Input A will be used as an example in this manual Press Enter IMPORTANT When calibrating the other inputs be sure to reconnect the current source at terminal block J2 See Figure 4 on page 10 for the correct pins 1 5 3 Entering the Set Point 1 Before proceeding place the RTD in a temperature bath and allow it to stabilize at the desired set point temperature 2 Scroll to Set to program the RTD set point Press Enter 3 Use the arrow keys to enter the desired set point temperature and press Enter 4 Scroll to STORE to accept the new set point value or ABORT to cancel the entry Press Enter 1 5 4 Entering the Slope 1 Scroll to Slope to program the RTD slope point Press Enter 2 Use the arrow keys to enter the desired slope point temperature and press Enter 3 Press STORE to accept the new slope point value or ABORT to cancel the entry Press Enter Note Ifan error message appears verify that the RTD is at the programmed temperature Also if you replace the set slope range with a different range be sure to recalibrate the set and slope points Procedure Options This completes calibration of the Slot 1 RTD input Do one of the following To calibrate or test another input press Escape and return to Step 3 in Accessing the Calibration Test Menu above To leave the Keypad Program press Escape twice 6 DigitalFlow XGF868i Service Manual Chapter
77. tion When you have reviewed the data click Next Item or Exit Page to return to the Hardware Test option DigitalFlow XGF868i Service Manual Appendix B Calibration and Testing with PanaView B 5 5k Reading an Optional Card EEPROM To read the data of the EEPROM for an optional card p pP dg From the left pane of the Calibration Test window double click on Hardware Test In the center pane double click on READ OPCARD EEPROM Double click on the S ot 1 or 2 that holds the optional card The right pane lists the Header Information When you have reviewed this data click Next Item The right pane now shows Calibration Values When you have reviewed this data click Next Item The right pane now shows RTD Calibration Values When you have reviewed this data click Next Item or Exit Page to return to the Hardware Test option B 5 5 Setting the Number of Channels To set the number of XGF8681 channels for display 1 2 3 From the left pane of the Calibration Test window double click on Hardware Test In the center pane double click on Set Chans In the Number of Channels window double click on or 2 Channels PanaView returns to the Hardware Test option Click Exit Page to return to the main Calibration Test menu and Close to exit the Calibration Test menu B 5 5m Initializing the XGF868i to Default Values To restore the XGF868i to its original default values 1 2 3 From the l
78. transit time downstream DT M Displays Measure Delta T Vinst Displays the instantaneous velocity 60 DigitalFlow XGF868i Service Manual Appendix C Factory Tests Appendix C Factory Tests C 1 Introduction For user security the XGF868i offers two special functions in a separate menu selection of single or dual channel operation and the factory default reset While the first function enables you to reset the channel configurations set during manufacturing the reset function by restoring the meter to its original state allows you to purge potential errors in program memory To enter the Factory Test menu press Escape followed in succession by the up arrow key A the right arrow key gt the down arrow key V the left arrow key gt the up arrow key again forming a loop around the keypad and finally the Enter key The screen displays FACTORY TEST as shown below FACTORY TEST CHAN 15 C 2 Resetting the Number of Channels To reset the number of channels displayed 1 Inthe Factory Test menu scroll to CHAN and press Enter 2 Scroll to the desired number of channels 1 or 2 and press Enter 3 The XGF868i returns to the Factory Test menu Press Escape to return to parameter display C 3 Resetting the XGF868i to Factory Defaults l Inthe Factory Test menu scroll to INIT and press Enter 2 The screen displays the initial string ESKEO Use the le
79. trasonic signal transit time A A Tdown Displays the downstream ultrasonic signal transit time A A Displays the transit time difference between the upstream and NA NA downstream signals Tot K Displays the total K factor N A N A Qup Displays the signal quality for the upstream transducer 21200 400 to 400 Qdown Displays the signal quality for the downstream transducer 400 to 400 Displays the value for the signal amplitude of the upstream 19 or gt 29 transducer Displays the value for the signal amplitude of the downstream pM transducer Displays the AGC DAC count for the upstream gain setting CNTdn Displays the AGC DAC count for downstream gain setting N A N A P up Displays signal peaks for the upstream transducer 100 2300 lt 100 or gt 2300 P dn Displays signal peaks for the downstream transducer 100 2300 lt 100 or TEMP Displays the gas temperature from 0 4 20 mA input A A Displays the gas pressure from 0 4 20 mA input A A Mw Displays the molecular weight A N A Displays the compressibility A N A A N A StVOL Displays standard volumetric flow A N A Tu 1 Displays Skan transit time upstream A N A A N A DTS Displays Skan Delta T N A N A DigitalFlow XGF868i Service Manual 59 Appendix B Calibration and Testing with PanaView Table 10 Available Measurement Parameters cont Option Bar Description Tu Mi Displays Measure transit time upstream Td Mi Displays Measure
80. tup Guide and make sure that the appropriate sound speed is programmed into the meter DigitalFlow XGF868i Service Manual 21 Chapter 3 Diagnostics 3 3 2 Pipe Problems Pipe related problems may result either from a failure to observe the installation instructions as described in the Startup Guide or from improper programming of the meter By far the most common pipe problems are the following 1 22 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 and in some cases transducers that protrude into the flow stream may be used Refer to Chapter 1 Installation of the Startup Guide for more details on proper installation practices 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 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 cause inaccurate readings Refer to Chapter 2 Initial Setup of the Startup Guide for instructions on programming
81. two built in analog outputs A and B at terminal block J1 which is designated as Slot 0 Both the zero point and full scale values for each output must be calibrated After calibrating the outputs which have a resolution of 5 0 uA 0 03 full scale their linearity should be tested Note The zero point of the analog output may be set for either 0 mA or 4 mA However the calibration procedure always uses the 4 mA point as the meter will extrapolate this value to obtain the 0 mA point Prepare for calibration by inserting an ammeter in series with the load on analog output A at terminal block J1 as shown in Figure 11 Terminal Black J1 Slot Q 4 B RTN SIG Ammeter Figure 11 Ammeter Connection Output A 1 From the Calibration Test menu see Figure 10 on page 42 double click on the Calibration entry to open the option 2 Inthe center pane double click on S ot 0 Note The Slot 1 option only appears in the center pane if an option card has been installed in this slot DigitalFlow XGF868i Service Manual 43 Appendix B Calibration and Testing with PanaView B 3 Calibrating Slot 0 Analog Outputs cont 3 Double click on either Output A or Output B to open the Analog Output menu Output A will be used as an example in this manual IMPORTANT The procedure for calibrating Output B is identical to that for calibrating Output A However when calibrating Output B be sure to reconnect the ammeter on te
82. ys the EPROM Sum Value Click Next Item or Exit Page to return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu 8 5 30 NVR Test 1 From the left pane of the Calibration Test window double click on Hardware Test Note Ifyou are in the Hardware Test option skip to step 2 2 Inthe center pane double click on NVR TEST 3 A message in the right pane cautions that the test will take several minutes and that interrupting the test may corrupt the memory Click Next Item to continue the test 4 Ifthe NVR passes the test the screen appears similar to Figure 15 on page 54 Click Exit Page to return to the Hardware Test option and Exit Page again to return to the main Calibration Test menu DigitalFlow XGF868i Service Manual 53 Appendix B Calibration and Testing with PanaView 8 5 56 NVR Test cont iw CALIBRATION TEST Program memory test Calibration Signal array upload Upload XGM memory Execute test Yes WARNING 5RThe selected test will require several minutes for comp TESTS NVR TEST EPROM sum 51C6 TESTS EPROM TEST m Exit Page Figure 15 Completion of the NVR Test B 5 5c RAM Test To check the RAM Note Ifyou are in the Hardware Test option skip to step 2 1 From the left pane of the Calibration Test window double click on Hardware Test 2 Inthe center pane double click on RAM TEST 3 Theright pane displays the RAM Value along w

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Service Manual - GE Measurement &amp; Control

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Service Manual - GE Measurement & Control