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DigitalFlow™ GF868 - Procon Systems Inc.

1. channel PROGRAM status PROGRAM status T Ft F2 F3 ACTIV SYSTM PIPE 2 Channel 1 Channel _ 2 Channel 1 Channel TRANSDUCER NUMBER Channel status CHANNEL LABEL SITE LABEL a SITE MESSAGE F2 Site status F1 CHANNEL MESSAGE EC BURSTI BURST SYSTEM UNITS F1 F2 SPECIAL TRANSDUCER ENG METRC FREQUENCY I Skan Measure Model PRESSURE UNITS English Metric F1 F2 F3 E zm T 50k Ok 200k Ei F2 BARS BARg S kan PSla PSig TE a Tw gt KPaa KPag 2 t v IGAGE PRESSURE PIPE OD STOPWATCH English e TOTALUER F1 F2 F1 F2 Fr AUTO MNUALI inch feet mm a F3 Fa i 5 inr CPI map c VOLUMETRIG UNITE English Metric PIPE WALL ceo El F2 Fa S Fa o MASS FLOW ACF KACF MMACH ACM
2. CH1 TRANSDUCER P Pin Description For compliance with the European Union s Low Voltage HT Upstream SIG Bes ses aag s s Plastic LVD Shroud Directive 73 23 EEC a transparent plastic shroud protects lastic OU Upstream RTN Downstream RTN the electrical connections The shroud must remain in place except while wiring the unit Reinstall the shroud after the wiring has been completed Downstream SIG a lt wu L n d o E o 3 9 EJ 2 o 2 Hd 6 o a E S 9 5 o 2 Im eo 2 o 8 ALARM RELAYS Description 0 4 20 mA ANALOG OUTPUTS 04 20 mA ANALOG INPUTS TOTALIZERIFREQUENCY OUTPUTS RTD INPUTS Relay A Normally Open NO Pin Description Pin Description Pin Description Description Relay A Common C 1 OutputA RTN 1 Input A 24V 1 Output A Common C Input A SIG Relay A Normally Closed NC Output A SIG Input A INHI Output A Normally Open NO InputA Common C Relay B Normally Open NO Output B RTN Input A INLO Output B Common C InputA Common C NOTE Relay B Common C Output B SIG Input A RTN Output B Normally Open NO Unused One option card of each Relay B Normally Closed NC Output C RTN Input B 24V Output C Common C Input B SIG pies cin pe Relay C Normally Open NO Output C SIG Input B
3. 1 16 Function Keys 3 4 Analog Inputs Option Card Fuse Ratings 4 2 RAIA PA OR a 4 3 Analog Outputs Slot 0 H Pin Assignments Tete PUE a ah 1 16 Hardware Configuration 4 1 Analog Outputs Option Card Pin Assignments 1 16 Axial Dimension D 1 Initial Setup C Data Table B 2 Input Output Specifications 4 2 CE Mark Compliance RE Tia Se te Asl He ion EE DEE tor CE Mark Configuration Hardware 41 c ompliance A 1 Internal Tests 3 2 D Data Logging 4 4 K Digital Interfaces for GF868 4 3 Kinematic MISCOSILY ober hein 2 8 Display Channel Mode Options 3 5 L Components 3 3 Daka a RE Nr A a ana 3 2 Locator Bar esee nn 3 3 Locator B r ea gee i oe este 3 3 Locator Bar Symbols 3 4 M Measurement Mode 3 2 Mass Flow Accuracy 4 1 Option Bar pobre ees 3 3 Measurement Outputs 4 2 Parameter Options 3 6 Measurements Pointer see en ee ne 3 3 Displaying 3 2 3 5 Prompt Area 3 3 Parameter Options 3 6 Select Sic bee ata hese eke num 3 3 BRT en 3 2 3 5 USING kay dien A 3 3 MODBUS TCP
4. January 2007 Introduction Measuring P and L Distances When programming the PIPE menu of the Model GF868 s User Program the path length P and the axial dimension L must be entered These parameters are determined by measurements on the actual transducer installation with P equal to the face to face distance between the transducers and L equal to the axial distance between the centers of the transducer faces The accuracy of the programmed P and L values is critical to precise flow rate measurements If GE Sensing supplies the flowcell for the system the correct values will be included in the documentation supplied with the unit For transducers installed on an existing pipe see Figure D 1 on page D 2 P and L must be measured at the site This appendix provides instructions for properly determining these dimensions Whenever possible physically measure the face to face distance P and the axial distance L between the centers of the flat faces of the transducers Refer to Figure D 1 on page D 2 for an illustration of the proper distances to measure in a typical installation In some situations only one of the required distances can be directly measured When this happens a knowledge of the installation angle 0 of the transducers permits the second distance to be calculated from Equation D 1 below L 0 D 1 cos D 1 As an example assume that the transducer installation angle is known to be 45 and
5. Ch1 Std Volumetric VOL U Ch2 Std Volumetric VOL U Avg Std Volumetric VOL U Ch1 Fwd Totals TOT U Ch2 Fwd Totals TOT U Avg Fwd Totals TOT U Ch1 Rev Totals TOT U Ch2 Rev Totals TOT U Avg Rev Totals TOT U Ch1 Tot Digits none Ch Tot Digits none Avg Tot Digits none Ch1 Mass Flow MASS U Ch2 Mass Flow MASS U Avg Mass Flow MASS U Ch1 Fwd Mass Totals MTOT U Ch2 Fwd Mass Totals MTOT U Avg Fwd Mass Totals MTOT_U Ch1 Rev Mass Totals MTOT_U Ch2 Rev Mass Totals MTOT_U Avg Rev Mass Totals MTOT_U Ch1 Mass Tot Digits none Ch2 Mass Tot Digits none Avg Mass Tot Digits none Ch1 Timer sec Ch2 Timer sec Avg Timer sec Ch1 Error Code none Ch2 Error Code none Avg Error Code none Ch1 SSUP none Ch2 SSUP none Avg SSUP none Ch1 SSDN none Ch2 SSDN none Avg SSDN none Ch1 Sound Speed ft s or m s Ch2 Sound Speed ft s or m s Avg Sound Speed ft s or m s Ch1 Density see note Ch2 Density see note Ch1 Temperature Deg F or C Ch2 Temperature Deg F or C Ch1 Pressure Metric or English units are determined by the setup of the flowmeter PRESS U Ch2 Pressure PRESS_U Totalizer digits are available for informational purposes only Respective totals are automatic
6. Unpacking How to unpack the GF868 system Selecting a suitable site for the electronics console and the flowcell transducers Installing a flowcell nstalling temperature and pressure transmitters nstalling the electronics console Wiring the electronics console IWARNING THE MODEL GF868 FLOWMETER MEASURES THE FLOW OF MANY GASES SOME OF THEM POTENTIALLY HAZARDOUS WE CANNOT OVEREMPHASIZE THE IMPORTANCE OF SAFETY BE SURE TO FOLLOW ALL APPLICABLE SAFETY CODES AND REGULATIONS FOR INSTALLING ELECTRICAL EQUIPMENT IN YOUR AREA AND WHEN WORKING WITH PARTICULARLY HAZARDOUS GASES OR FLOW CONDITIONS CONSULT YOUR COMPANY SAFETY PERSONNEL OR LOCAL SAFETY AUTHORITIES IF YOU ARE UNSURE ABOUT THE SAFETY OF ANY PROCEDURE OR PRACTICE ATTENTION EUROPEAN CUSTOMERS IN ORDER TO MEET CE MARK REQUIREMENTS YOU MUST MAKE ALL WIRING CONNECTIONS AS DESCRIBEDIN APPENDIX A CE MARK COMPLIANCE Unpacking Remove the electronics console transducers and cables from the shipping containers Check all packing material before discarding it to account for all parts and documentation listed on the packing slip If anything is missing or damaged contact the factory immediately for assistance Installation 1 1 January 2007 Site Considerations Electronics Console Location Flowcell Location Transducer Locations Cable Lengths Since the relative physical locations of the flowcell s and the GF868 electronics are important use
7. Figure 1 2 Typical Temperature Pressure Transmitter Mounting Installation 1 5 January 2007 Mounting the GF868 Enclosure Making Electrical Connections The standard GF868 is housed in a Type 4X weather resistant enclosure Other enclosure options are available and are discussed in Appendix C Refer to Figure 1 7 on page 1 16 for the standard enclosure mounting dimensions For meters housed in one of the optional enclosures a dimensional drawing will be shipped with the unit This section contains instructions for making all the necessary electrical connections to the Model GF868 flowmeter Refer to Figure 1 8 on page 1 17 for a complete wiring diagram RACK MOUNT CUSTOMERS PLEASE REFER TO APPENDIX C FOR A WIRING DIAGRAM AND INSTALLATION INFORMATION FOR YOUR UNIT Except for the power connector all terminal blocks are stored in their terminal blocks during shipment and are removable for more convenient wiring Feed all cables through the conduit holes on the bottom of the enclosure attach the wires to the appropriate connectors and plug the connectors back into their terminal blocks IWARNING To ensure the safe operation of the Model GF868 you must install and operate it as described in this manual In addition be sure to follow all applicable safety codes and regulations for installing electrical equipment in your area ATTENTION EUROPEAN CUSTOMERS IN ORDER TO MEET CE MARK REQUIREMENTS YOU MUST INSTALL CA
8. 1 RTN Return T 7 5 2 TX Transmit 2 3 3 RX Receive 3 2 2 DTR Data 20 20 4 Terminal Ready 5 CTS 5 4 Clear to Send 2 Wire the flying leads end of the cable to terminal block RS232 and connect the other end of the cable to the printer ANSI terminal or personal computer After the wiring has been completed consult the User s Manual for the external device to configure it for use with the GF868 Installation 1 9 January 2007 Wiring the RS485 Interface Use the optional RS485 serial port to network multiple GF868 flowmeters to a single computer terminal Upon request the standard RS232 port on the GF868 may be configured as a two wire half duplex RS485 interface through a device such as the INMAC Model 800052 RS232 RS422 RS485 converter To wire the RS485 serial port refer to Figure 1 8 on page 1 17 and complete the following steps 1 Disconnect the main power to the unit and remove the cover 2 Install the required cable clamp in the chosen conduit hole on the side of the electronics enclosure 3 Feed one end of the cable through the conduit hole wire it to terminal block J1 and secure the cable clamp Connect the other end of the cable to the converter as shown in Figure 1 3 below Converter 1 TD OUT Figure 1 3 Typical RS485 Connections IATTENTION EUROPEAN CUSTOMERS To meet CE Mark requirements all cables must be installed as descri
9. Customers can also use a modified GF868 that provides a MODBUS TCP interface to communicate to an internal network An optional MODBUS TCP card with a unique MAC IP address installed only in slots 5 or 6 includes an RJ45 connector To connect the MODBUS TCP enabled GF868 to the network insert the jack of an RJ45 cable into the RJ45 connector route the cable through the bottom of the GF868 and wire the other end of the cable to the Ethernet network according to the manufacturer s instructions Note The MAC address for a specific GF868 is included with customer documentation For more information on setting up the MAC address refer to Chapter 6 of the Programming Manual Installation 1 11 January 2007 Wiring the Foundation Fieldbus network connections are made at J8 J9 pins 1 and 2 see Fieldbus Network Figure 1 4 below Optionally a shield can be connected to J8 J9 pin 3 depending on the network wiring Connector J8 or J9 will be installed depending on the option ordered by the customer No connections are made to J8 J9 pins 7 and 9 under normal operation If it is desired to reset the network board to factory defaults 1 Connect a jumper between J8 J9 pin 7 and pin 9 2 Power cycle the instrument 3 Ten seconds after the power has been restored to the unit remove the jumper to return the network board to normal operation Figure 1 4 Network Connections Standard Option Interior 1 12 Insta
10. Mass Flow Mass Flow Mass Flow Time Mass Flow Time MDOT Dec Dig MDOT Dec Dig Mass Totalizer Mass Totalizer Mass Dec Dig Mass Dec Dig Pipe Transducer Parameters PIPE Channel 1 Channel 2 if applicable Std Trans Std Trans Spec Trans Spec Trans Spec Trans Hz Spec Trans Hz Spec Trans Tw Spec Trans Tw Note table is continued on the next page B 2 Data Records January 2007 Table B 2 Data Information Sheet Continued Pipe Transducer Parameters cont PIPE Channel 1 cont Channel 2 cont Pipe O D Pipe O D Pipe Wall Pipe Wall Path Length P Path Length P Axial Length L Axial Length L Multi K factors Off Multi K factors Off On Edit Table No Edit Table No Yes K factor Table K factor Table K Factor Velocity K Factor K Factor Velocity K Factor 1 2 3 4 5 6 7 8 9 N LY Data Records B 3 Appendix C Optional Enclosures INTRODUCTION ka ER EE Ee EG See E ed ine C 1 Rack Mount Enclosure C 1 Rack Mount Wiring ara a Ren C 1 Rack Mount Front Panel C 2 January 2007 Introduction Rack Mount Enclosure Rack Mou
11. 4 5 Transducer Wiring Diagram 1 17 Transducer Flowcell Specifications 4 5 Transducers 180 Installation D 1 Axial Dimension D 1 Bias 90 Installation D 1 Installation Angle D 1 Path Length D 1 Pin Assignments 1 16 Type 4X Enclosure Drawing 1 15 W Wiring CE Mark Compliance A 1 Foundation Fieldbus 1 12 Wiring Diagram Type 4X Housing 1 16 Index i DECLARATION Sensing OF CONFORMITY We Panametrics Limited Shannon Industrial Estate Shannon County Clare Ireland declare under our sole responsibility that the DF868 Liquid Ultrasonic Flowmeter GF868 Flare Gas Ultrasonic Flowmeter GM868 Multi Purpose Gas Ultrasonic Flowmeter GN868 Natural Gas Ultrasonic Flowmeter GS868 Steam Mass Ultrasonic Flowmeter to which this declaration relates are in conformity with the following standards e EN 61326 1998 Class A Annex A Continuous Unmonitored Operation e EN 61010 1 1993 A2 1995 Overvoltage Category Il Pollution Degree 2 following the provisions of the 89 336 EEC EMC Directive and the 73 23 EEC Low Voltage Directive The units listed above and any transducers supplied with them spoolpieces are addressed under a separate declaration of conformity do not bear CE marking for the Pressure Equipment Directive as they are supp
12. INHI Output C Normally Open NO Input B Common C always installed in the same Relay C Common C Output D RTNC Input B INLO Output D Common C Input B Common C slots used for this exemple Relay C Normally Closed NC Output D SIG Input B RTN Output D Normally Open NO Unused Installation 1 17 FLYING LEAD TO BLK x N UP TO 1 SUPPLIED BY GE NA 22er ES DUAL PREAMFLIFIER I PREAMPLIFIER X As part of maintaining the FM CSA environmental rating NEMA TYPE 4 on the remote preamplifier thread sealant CAUTION is required on all conduit entries TO 10 JPPUED E PREAMPLIFIER SINGLE PREAMPLIFIER ER REF ONLY NG DETAIL PRESSURE AND TEMPERATURE INPUTS UPPLY URE INPUT TJ REFERENCE ONLY GM868 EN 24V SENSOR O PNF 1 IN1 our EN TEMPERATURE TRANSMITTER TEMPERATURE INPUT REFERENCE ONLY GM868 N PNF 5 ave INZ our N2 24v DETAIL PRESSURE AND TEMPERATURE INPUTS USING INTERNAL 24VD PRESSURE INPUT SOFTWARE ASSIGNED PRESSURE TRAN GM868 REFERENCE Fg 1 gave N 2 ENT m out 2av PER WIRE NOT SUPPLIED MPERATURE INPUT WARE ASSIGNED TEMPERATURE TRANSMITTER GM868 RE
13. Option Cards Installed Whenever an option card is installed in one of the Model GF868 s expansion slots record the type of card and any additional setup information in the appropriate row of Table B 1 below Table B 1 Option Cards Installed Type of Option Card Additional Setup Information Analog Outputs A B Data Records B 1 January 2007 Initial Setup Data After the Model GF868 flowmeter has been installed some initial setup data must be entered via the User Program prior to operation Record that information in Table B 2 below Table B 2 Data Information Sheet General Information Model Software Vers Serial Reference Date Z Dimension Measurement Method 1 Channel ACTIV sisas Bust T TO Measure Mode Skan Measurement Method 2 Channel ACTIV Channel 1 Channel 2 Channel Status Off Channel Status Off Measure Mode Skan 1 Channel Measure Mode System Parameters SYSTEM Skan 2 Channel Site Label Chan 1 Label Site Message Chan 1 Message System Units Pressure Units English Chan 2 Label Chan 2 Message Stopwatch Total Auto 1 Channel and 2 Channel Channel 1 Channel 2 if applicable Vol Units Vol Units Vol Time Units Vol Dec Digits Totalizer Units Vol Time Units Vol Dec Digits Totalizer Units Tot Dec Digits Tot Dec Digits
14. the information entered in the SYSTM submenu pertains only to the currently selected channel 1 Atthe User Program screen shown press the F2 function key to program the SYSTM submenu 2 Enter a Channel Label of up to 9 characters Press ENT 3 Enter a Channel Message of up to 21 characters Press ENT Note For the 2 Channel Model GF868 the System Units Pressure Units and Stopwatch Totalizer prompts which are not required to make the unit operational are located in the GLOBL submenu See the Programming Manual for details The remainder of the SYSTM submenu is identical for the 1 Channel and 2 Channel versions of the Model GF868 Proceed to the and 2 Channel Meters section below to complete the programming of this submenu 1 Use the F1 F4 and gt keys to select the desired Volumetric Units for the flow rate display The abbreviations and definitions of all the available volumetric and totalizer units are shown in Table 2 2 below The choices shown on the option bar are determined by the selection made at the previous SYSTEM UNITS screen Table 2 2 Available Volumetric Totalizer Units English Metric Actual Units ACF Actual Cubic Feet ACM Actual Cubic Meters KACF Thousands of ACF KACM Thousands of ACM MMACF Millions of ACF MMACM Millions of ACM Standard Units SCF Standard Cubic Feet SCM Standard Cubic Meters KSCF Thousands of SCF KSCM Thousands of SCM MMSCF Millions of S
15. 2 to a ground point on the rack 2 Wire the transducers as follows d Connect the pair of cables supplied with the meter to the Channel 1 upstream and downstream BNC transducer connectors on the left side of the rear panel b For a 2 Channel meter repeat the above step for the Channel 2 transducer connectors if the second channel is to be used c Complete the transducer wiring in accordance with the instructions in Chapter 1 Installation of this manual Optional Enclosures C 1 January 2007 Rack Mount Wiring 3 Wire the 0 4 20 mA analog outputs at the left side of the rear cont panel in accordance with the instructions in Chapter 1 Installation of this manual 4 Wire the RS232 serial port by completing the following steps d Purchase or prepare a suitable serial cable This cable should have a standard female DB9 connector wired as shown in Figure C 2 on page C 4 for connection to the rear panel of the Model GF868 The other end should be as required for the external device b Complete the serial port wiring in accordance with the instructions in Chapter 1 Installation of this manual 5 Wire any installed option cards using the same procedures described in Chapter 1 Installation of this manual and the pin ff assignments shown in Figure C 2 on page C 4 6 Place the power switch item 1 in the ON position The Model GF868 is now completely wired Proceed to Chapter 2 Initial Setup of th
16. EG ee TAN EG ta toc e pes dba o 1 2 Electronics Console Location di 1 2 hlowcell bacatlobr AA reas AE FEET RAS nette 1 2 Transducer Locations dl a Be 1 2 CS EG T 1 2 Temperature and Pressure Transmitters rr 1 3 TOA UE READ SS cov EG eier 1 3 Astaling a Floweell vente see cala Eta aga a Se en en one 1 3 Installing Temperature and Pressure Transmitters 1 5 Mounting the GF868 Enclosure eset pero Oe PERLE a aaa 1 6 Making Electrical ConnestloliS seas Fea E COP oy twat A 1 6 VNA tie dIE POWER SA GE SEVA T TV ak Snr ee E 1 7 Wiring the GAS od rerit oe tapete t dte ito utens Ca are obe Cod arietis 1 8 Wiring the 0 420 mA Analog Outputs a esse tte Po SO eer ed 1 9 Wiring the SEIEN POLES RCE EE o ess aae tnum 1 9 Wiring an Alarms Optioh o o MERE EET E A 1 13 Wiring a 0 4 20 mA Analog Inputs Option Card 1 14 Wiring the Totalizer Frequency Outputs 1 15 Wiring the RED APUS ag iere ele alten pace caen esse te sense tete AU E 1 15 Chapter 2 Initial Setup pel Ta Aa oo c ET 2 1 Navigating Through the User Program E SEE rn Font se 2 1 Accessing The User PIO AM a CD ee ne LO EU DA P ns ra es 2 2 Channel Meter ee ee e ie ed tae 2 2 2 Chaninel Meter ine Seit Nein uM Sa HH 2 2 AC eg 2 3 Channel Meter as sa ee Og ips etr piel cor Mee be Re iat e M is 2 3 2 Channel Meten sen d
17. II oe a ns 2 3 1 and 2 Channel Meters uso se EVO UH Rei 2 3 Entering System Data for a Chanel sue te se E ptr tad ERE native aa sects Ee 2 4 A Channel Meter esa e uc pa EE Ee e ee 2 4 Pee CMG MING Metal Em MR RERUM 2 5 t nd 2 Channel Meters Me ee UM cod s er ede 2 5 Entering Pipe NAA S ct dl tor ated 2 7 Transducer Number Seu ost kette ee OLOR de THES Leer Mediae 2 7 PIPEOD RE SPEL SE dci bio ATL ation obe da An daa CDI tet 2 7 PIPE NA MCCC 2 8 Be Ede an AA pes etse en N N WAA e Ee KA ERAS Cd 2 8 AI a AA rete a tenes n S x 2 8 Reynolds CORPECUION sioe tec e EE RE eg das 2 8 KUNENA UNA cope M 2 9 January 2007 n Table of Contents cont Chapter 3 Operation jas ROME ER RT OR N RT an it ea 3 1 POWERING ps UA A AA res M Me ete nee 3 2 Using ther Dis Play na PUO vbt e tbid a mi Goto taa iet tok auod utat its nn 3 3 TakingaMeasuremerits seen INIMICI Ru Here ete pets 3 5 Foundation Fieldbus Communications Re OE RE TA 3 6 Chapter 4 Specifications General SBECITIEAHONS c2 1e a Ba ne A 4 1 Flow Acc racy 6f Reading un ae en ee ee H ead SEES 4 1 Molecular Weight and Mass Flow Accuracy 96 of Reading 4 1 Electrical Secc o at ita 4 2 Operational Pe s c esi hem bibo DE ec ease Ease DER Be ibas 4 4 Transducer Flowcell Specifications cato e ec e ED a 4 5 psico A A UU an A Soe ED ope ol Ae 4 5 Mounting and Installation a eae DT we E Hee Ritt 4 5 Rloweellispeeifie
18. Specifications January 2007 Transducer Flowcell Specifications Transducer Type Temperature Range Pressure Range Materials Connections Mounting and Installation Flowcell Specifications Spoolpiece Hot Cold Tap Preamplifier with Explosion proof Housing Standard GE Sensing type T5 welded assembly of Ti transducer For agency certifications contact GE Sensing Standard 94 to 300 F 70 to 150 C Optional high temperature 94 to 536 F 70 to 280 C Optional low temperature 364 to 248 F 220 to 120 C 0 to 1500 psig 1 to 1 5 bar Standard Titanium Optional Monel Hastalloy and 316 stainless steel Cable Length Up to 1000 ft 300 m Housing Options Explosion proof Type 7 Class I Group C amp D Division I Weatherproof Type 4X IP65 Flameproof II 2 G EEx d II C T6 Mechanical insertion mechanism rated to 500 F and 500 psig Prefabricated spools complete with transducer mechanism port Pipe sizes 3 to 120 in Process Connections Plain end 150 300 or 600 Ib RF flanged Materials carbon steel low carbon steel stainless steel or other Mechanisms installed via hot or cold tap Full installation jigs fittings and documentation provided Process Connections NA Operating Temperature 40 to 140 40 to 60 C Specifications 4 5 Appendix A CE Mark Compliance Introduction nk Mee Ee en nen WITING ide
19. Wiring the 1 11 Display Functions 4 4 Molecular Weight o o oooo 4 1 E O Electronics Console Operating Temperature 4 1 Mounting 1 13 Option Bari su hene A 3 3 European Compliance of GF868 4 2 Option Card Setup Information Table B 1 Index January 2007 Index cont P Parameter Options 3 6 Path Length D 1 Pipe OD Available Units 2 7 Pipe OD Programming 2 7 PIPESubmenu 2 7 Pointer ioi OR Selen re 3 3 Power Terminal Block 1 16 Power Supply 4 2 Power Usage us Hans Sara se 4 2 Powering Up BEYER ds EEE HU 3 2 Internal Checks 3 2 Pressure Range 4 5 Printer Signal Output 4 4 Printer Terminal Communications 4 2 Programming Data Record zoo eme EE ER EE B 1 Prompt Area 3 3 Protection Electrical 4 2 R Rack Mount Front Panel C 2 C 5 Installation C 1 C 3 Wilh ss sis dre einen ous C 1 C 4 Ranges oss ee ete tate oh eee 4 1 Rangeability 4 1 Repeatability 4 1 Reynolds Correction 2 8 RS232 Port See Serial
20. bonne fabrication pour l ing nierie du son Shannon June 1 2002 pe P ER Mr James Gibson DIRECTEUR G N RAL CE e LS EN IS0 9002 Shannon T V ESSEN ISO 9001 U S CERT DOC H4 August 2004 Sensing KONFORMIT TS ERKL RUNG Wir Panametrics Limited Shannon Industrial Estate Shannon County Clare Ireland erkl ren in alleiniger Verantwortung da die Produkte DF868 Liquid Ultrasonic Flowmeter GF868 Flare Gas Ultrasonic Flowmeter GM868 Multi Purpose Gas Ultrasonic Flowmeter GN868 Natural Gas Ultrasonic Flowmeter GS868 Steam Mass Ultrasonic Flowmeter folgende Normen erf llen e EN 61326 1998 Class A Annex A Continuous Unmonitored Operation e EN 61010 1 1993 A2 1995 Overvoltage Category Il Pollution Degree 2 gem den Europ ischen Richtlinien Niederspannungsrichtlinie Nr 73 23 EG und EMV Richtlinie Nr 89 336 EG Die oben aufgef hrten Ger te und zugeh rige mitgelieferte Schallwandler Messrohre werden in einer separaten Konformit tserkl rung behandelt tragen keine CE Kennzeichnung gem der Druckger te Richtlinie da sie in bereinstimmung mit Artikel 3 Absatz 3 gute Ingenieurpraxis der Druckger te Richtlinie 97 23 EG f r DN lt 25 geliefert werden Shannon June 1 2002 p CLA Mr James Gibson GENERALDIREKTOR CE e LS EN ISO 9002 T V ESSEN Shannon ISO 9001 U S CERT DOC H4 August 2004 USA 1100 Technology Park Drive Billerica MA 01821 4111 Web
21. from the measurement site Transmitters installed in the flowcell send this information to the analog input card This card provides two isolated 4 20 mA inputs A and B with 24 VDC supply for loop powered transmitters You can assign the temperature and pressure inputs to A and B as desired Note 7o enter programming data during meter operation you should know which input is assigned to which process parameter Enter the connections in Appendix B Data Records The analog inputs which have an impedance of 118 ohms should be connected with standard twisted pair wiring Temperature and pressure inputs require two or four wires depending on whether the GF868 will provide power to the transmitter If desired INLO and RTN can use the same wire Wire the analog input terminal block in accordance with the pin number assignments shown in Figure 1 8 on page 1 17 The analog inputs on the option card s can be calibrated with the Model GF868 s built in analog outputs However be certain that the analog outputs have been calibrated first See Chapter 1 Calibration in the Service Manual for the appropriate procedures Installation January 2007 Wiring the Totalizer Frequency Outputs Wiring the RTD Inputs The GF868 can accommodate 1 to 6 totalizer frequency outputs option cards Each totalizer frequency outputs option card provides four outputs A B C and D that can be used as either totalizer or frequency outputs
22. m 6 fi of the Model GF868 Covered Option Card Slot RS232 SERIAL PORT DB9 Pin Description No Connection TX Transmit RX Receive DTR Data Terminal Ready RTN Digital Return No Connection No Connection CTS Clear to Send No Connection Description Output A SIG Output A RTN Output B SIG Output B RTN NOTE One option card of each available type is shown in this diagram These cards are not always installed in the same slots used for this example POWER INPUT Item Description 1 ON OFF Switch Earth Ground 2 3 Power Cord 4 Fuse ALARM RELAYS RS232 Le 23458 TRORC XXTTT ANS Description 0 4 20 mA ANALOG OUTPUTS TOTALIZER FREQUENCY OUTPUTS 0 4 20 mA ANALOG INPUTS RTD INPUTS Relay A Normally Open NO Pin Description Pin Description Pin Description Description Relay Common C 1 Output A RTN Output A Common C 1 Input A 24V Input A SIG Relay A Normally Closed NC Output A SIG Output A Normally Open NO Input A INHI Input A Common C Relay B Normally Open NO Output B R
23. 25 208 1 2 Conduit Plate 1 54 39 1 65 42 i d 1 30 33 i 7 177 45 1 2 26 57 2 26 B7 _ 90 88 22 10 Places 1 20 30 Installation January 2007 RS232 SERIAL PORT RS485 PORT MODBUS Description Description RTN Digital Return TMT TX Transmit TMT RX Receive Unused DTR Data Terminal Ready Unused CTS Clear to Send Unused CH2 TRANSDUCER Pin Description Upstream SIG Upstream RTN Downstream RTN Downstream SIG For compliance with the European Union s Low Voltage Directive 73 23 EEC 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 mAANALOG OUTPUTS Model GF868 Description OutputA SIG Output A RTN Output B SIG Output B RTN POWER INPUT Pin Description 1 G Earth Ground 2 N Line Neutral Test Points 3 L Line Power porn P
24. BLES AS DESCRIBED IN APPENDIX A Note f your unit complies with the European Union s Low Voltage Directive IEC 1010 it has a transparent plastic cover over the electrical connections This cover must remain in place except while you are wiring your unit Reinstall the shroud after the wiring has been completed Once the GF868 is completely wired proceed to Chapter 2 Initial Setup to configure the unit for operation 1 6 Installation January 2007 Wiring the Line Power The Model GF868 may be ordered with power inputs of 100 120 VAC 220 240 VAC or 12 28 VDC The label on the shroud inside the electronics enclosure just above the TB1 line power terminal block lists the line voltage setting and fuse rating for your unit The fuse rating also appears in Chapter 4 Specifications Be sure to connect the meter only to the correct line voltage The allowable line voltages and fuse ratings are shown in Table 1 1 on page 1 9 Note For compliance with the European Union s Low Voltage Directive IEC 1010 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 6 ft 1 8 m of the GF868 Refer to Figure 1 8 on page 1 17 to locate terminal block TBI Follow these steps to connect the line power 1 Prepare the line power leads by trimming the line and neutral or positive and nega
25. CF MMSCM Millions of SCM 2 Use the F1 F4 keys to select the Volumetric Time units for the volumetric flow rate display 3 Use the F1 F4 keys to select the Vol Decimal Digits the desired number of digits to the right of the decimal point in the volumetric flow rate display Initial Setup 2 5 January 2007 1 and 2 Channel Meters cont 4 Use the F1 F4 and gt keys to select the Totalizer Units The abbreviations and definitions of all the available volumetric and totalizer units are shown in Table 2 2 on the previous page The choices shown on the option bar in the prompt screen above are determined by the selection made at the previous SYSTEM UNITS prompt screen 5 Use the F1 F4 keys to select the Total Decimal Digits the desired number of digits to the right of the decimal point in the totalized flow display 6 Use the F1 F4 keys to select the Mass Flow units listed in Table 2 3 below Table 2 3 Available Mass Flow Units English Mass Flow Units Metric Mass Flow Units LB Pounds KG Kilograms KLB Thousands of Pounds MMLB Millions of Pounds TONS Tons Tonnes Metric Tons 7 Use the F1 F4 keys to select the Mass Flow Time units 8 Use the F1 F4 keys to select the MDOT DECIMAL DIGITS the number of digits to the right of the decimal point for displaying mass flow 9 Use the F1 F4 keys to select the Mass Totalizer units listed i
26. Each totalizer frequency output requires two wires Wire this terminal block in accordance with the pin number assignments shown in Figure 1 8 on page 1 17 Figure 1 5 below shows sample wiring diagrams for the totalizer frequency outputs Totalizer Output Model GF868 Pulse Counter Max Current 4 Amps Max Voltage 150 Volts Isolation Voltage 500 Volts Max Load Power 10 Watt In Volts Int Pwr Sup Load C Isolated Return Volts Common Model GF868 Frequency Counter IN Common C Isolated Return Frequency Output Figure 1 6 Totalizer Frequency Output Wiring The GF868 can accommodate 1 to 6 RTD Resistance Temperature Device inputs card s Each RTD inputs card provides two direct RTD inputs A and B Each RTD input requires three wires Feed the wires through one of the conduit holes on the bottom center of the enclosure Connect the wires to the 8 pin RTD inputs option card terminal block as shown in Figure 1 8 on page 1 17 Installation 1 15 January 2007 20 38 10 4 Places 8 00 203 0 75 19 7 00 ee livery 129 20 13 3 4 Places 11 37 289 10 74 273 3 4 Conduit Plate 2 69 68 91 10 28 6 Places Figure 1 7 Model GF868 Type 4X Enclosure Dwg 14
27. FERENCE ONLY Peas N m na out 2av O SUMPER MRE NOT SUPPLIED January 2007 Figure 1 9 Model GF868 Transducer Wiring Dwg 702 213 Sh 2 Installation 1 18 Chapter 2 Initial Setup Introduction ss es a 2 1 Navigating Through the User Program 2 1 Accessing the User Program 2 2 ActivatingaChannel 2 3 Entering System Data for a Channel 2 4 Entering Pipe Data RN N NR R RRR RRR ee RRR N NR 2 7 January 2007 Introduction Navigating Through the User Program This chapter provides instructions for entering the minimum amount of programming data required to place the GF868 flowmeter into operation Before your GF868 can begin taking measurements you must enter the necessary information into the SYSTM and PIPE submenus In addition a 2 Channel meter requires activation of each channel prior to use The other submenus within the Program Menu enable you to access all the GF868 features however this information is not necessary to begin taking measurements Note See the Programming Manual for information on those User Program options not covered in this chapter To begin using the GF868 you must access three submenus within the User Program ACTIV enables you to select a measurement method SYSTM prompts you to ent
28. GE Sensing DigitalFlow GF868 Panametrics Ultrasonic Flowmeter for Flare Gas Startup Guide 1 and 2 Channel GE Sensing DigitalFlow GF868 Panametrics Ultrasonic Flowmeter for Flare Gas Startup Guide 1 and 2 Channel 910 194UD January 2007 DigitalFlow M is a GE Panametrics product GE Panametrics has joined other GE high technology sensing businesses under a new name GE Sensing January 2007 Warranty Return Policy Each instrument manufactured by GE Sensing Inc iswarranted 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 Fuses and batteries are specifically excluded from any liability This warranty is effective from the date of delivery to the original purchaser If GE determines that the equipment was defective the warranty period is one year for general electronic failures of the instrument one year for mechanical failures of the sensor If GE 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 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 of merchantability
29. KACM MMACM PATH LENGTH Pres Match pra English Metric F1 F2 2 F2 F3 F4 Fa p F2 Fa F2 inch feet 2 KLB MMLB TONS SCF KSCF MMSCF M MMSCM o AXIAL LENGTH L gt MASS FLOW TIME VOLUMETRIC TIME F1 F2 n F1 F2 FA F2 Inch feet S ISEC MIN ISEC MIN S REYNOLDS CORRECTION gt IGITS F1 F2 F2 OFF 9 1 KINEMATIC VISCOSITY CALIBRATION FACTOR MASS TOTALIZER TOTALIZER UNITS English Metric English F2 F3 Fa Fa s KLB MMLB TONS CF Mach MASS DECIMAL DIGITS Fi F2 p m KSCF MMSCF 0 1 TOTAL DECIMAL DIGITS FA F2 NOTE Plain text represents prompt area messages and 0 1 boxed text represents option bar choices Fx represent function keys to select option bar choices 2 10 Initial Setup Chapter 3 Operation Introduction eee ere ur re A 3 1 Powerinig HUB xus er erae a ea d T LA Ire mute te p RO a a 3 2 Using the Display es EE a om Ree RR I 3 3 Taking Measurements 3 5 January 2007 Introduction See Chapter 1 Installation and Chapter 2 Initial Setup to prepare the system for operation When the meter is ready to take measurements proceed with this chapter The following specific topics are discussed Powering Up Using the Display Taking Measurements Note All inputs and outputs of the Model GF868 are calibrated at the factory prior to shipment If it becomes necessary to recalibrate any of the inputs and or outputs see Chapter 1 Cali
30. Port RTD Inputs Option Card Pin Assignments 1 16 S Screen Selecting 3 3 Serial Port Conne ting u urn 1 9 Pin Assignments 1 9 1 16 Specifications Electrical usb e Rp 4 2 General soie Ra Mr 4 1 Input Output 4 2 Mass Flow Accuracy 4 1 Molecular Weight 4 1 Operational 4 4 ELE desis EO OE Ces 4 1 Rangeability 4 1 Repeatability 4 1 Transducer Flowcell 4 5 Standard Outputs 4 2 Storage Temperature 4 1 Symbols Locator Bar 3 4 SYSTM Submenu 2 4 for 1 Channel Meter 2 4 for 2 Channel Meter 2 5 Index January 2007 Index cont T Temperature Range 4 5 Terminal Block Analog Outputs I O 1 16 C 4 Power TB1 1 16 C 4 Serial Port RS232 1 9 1 16 C 4 Transducers CH1 CH2 1 16 C 4 Totalizer Frequency Option Card Pin Assignments 1 16 C 4 Totalizer Frequency Output Options 4 3 Transducer Connections 4 5 Transducer Materials 4 5 Transducer Mounting and Installation 4 5 Transducer Number Entering 2 7 Transducer Type
31. TN Output B Common C Input A INLO Input A Common C Relay B Common C Output B SIG Output B Normally Open NO Input A RTN Unused Relay B Normally Closed NC Output C RTN Output C Common C Input B 24V Input B SIG Relay C Normally Open NO Output C SIG Output C Normally Open NO Input B INHI Input B Common C Relay C Common C Output D RTN Output D Common C Input B INLO Input B Common C Relay C Normally Closed NC Output D SIG Output D Normally Open NO Input B RTN Unused REAR VIEW DC OPTION Figure C 2 Model GF868 Rack Mount Enclosure Wiring Diagram Optional Enclosures January 2007 Mounting Holes Handle Mounting Holes Handle P ar 3 B E F G ai DUO APR FECES Ee Es 6 BGO ii 6 BEES OO T ite EIE 5396 ide E LCD Display Function Keys Main Keypad Console Keys Figure C 3 Model GF868 Rack Mount Enclosure Front Panel Layout Optional Enclosures Appendix D Measuring P and L Dimensions Introduction i ose asset in etUm eus Measuring P and L Distances
32. Wiring the 0 4 20 mA Analog Outputs Wiring the Serial Port Wiring the RS232 Interface The standard GF868 comes with two isolated 0 4 20 mA analog outputs A and B Use standard twisted pair wiring to make connections to these outputs The current loop impedance must not exceed 550 ohms Refer to Figure 1 8 on page 1 17 and connect the wires to the terminal block I O as shown The Model GF868 is equipped with a built in serial communications port The standard port is an RS232 interface but an optional RS485 interface is available upon request Proceed to the appropriate sub section for wiring instructions For more information on serial communications refer to the EJA RS Serial Communications Manual 916 054 The RS232 communications port provides a serial interface in order to connect the GF868 to a printer an ANSI terminal or a personal computer The RS232 serial interface is wired as Data Terminal Equipment DTE and the signals available at the GF868 RS232 terminal block are shown in Table 1 1 below Refer to Figure 1 8 on page 1 17 to locate terminal block RS232 and complete the following steps to wire the terminal 1 Use the information in Table 1 1 below to construct a suitable cable for connecting the GF868 to the external device If desired an appropriate cable may be purchased from GE Sensing Table 1 1 RS232 Connection to DCE or DTE Device Signal DCEDB25 DTEDB25 DTE DB9 Description Pin Pin Pin
33. a A EA January 2007 Introduction Wiring For CE Mark compliance the Model GF868 flowmeter must be wired in accordance with the instructions in this appendix IMPORTANT CE Mark compliance is required only for units intended for use in EEC countries The Model GF868 must be wired with the recommended cable and all connections must be properly shielded and grounded Refer to Table A 1 below for the specific requirements Cable Type Transducer RG62 a u Table A 1 Wiring Modifications Termination Modification Add metallic cable clamp from braid to chassis ground Armored RG62 a u or conduit None grounded via cable gland Input Output 22 AWG shielded e g Baystate 78 1197 Terminate shield to chassis ground Armored conduit None grounded via cable gland 14 AWG 3 conductor shielded e g Belden 19364 None required Armored Conduit None grounded via cable gland Shielding For CE compliance power and I O cables must be shielded Cables to be terminated within cable gland at the GF868 Shielded cable is not required when installations include metal conduit Note Ifthe Model GF868 is wired as described in this appendix the unit will comply with the EMC Directive 89 336 EEC CE Mark Compliance A 1 Appendix B Data Records Option Cards Installed Initial Setup Data January 2007
34. ally scaled by the Tot Digits value selected in the flowmeter setup If the meter is outputting Mole Weight the unit is mw otherwise it is the programmed pressure unit VOL U TOT U MASS U MTOT_U and PRESS U are determined by the units chosen for these measure ments in the flowmeter setup See the instrument User s Manual for the setup of these parameters Operation Chapter 4 Specifications General Specifications 4 1 Electrical Specifications 4 2 Operational Specifications 4 4 Transducer Flowcell Specifications 4 5 Flowcell Specifications ici rr 4 5 January 2007 General Specifications Hardware Configuration Environmental Flow Accuracy of Reading Range Molecular Weight and Mass Flow Accuracy of Reading Rangeability Repeatability The general specifications for the Model GF868 flowmeter are divided into the following categories Package Options Epoxy coated aluminum standard Stainless steel optional Fiberglass optional Explosion proof optional Flameproof optional Physical Epoxy coated aluminum package Size 14 24 x 11 4 x 5 12 in 36 2 x 29 x 13 cm Weight 11 Ib 5 kg Operating Temperature 4 to 131 F 20 to 55 C Storage Temperature 67 to 167 F 55 to 75 C Velocity Accuracy 1 Pa
35. and fitness for a particular purpose and warranties arising from course of dealing or usage or trade If a GE Sensing Inc instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE giving full details of the problem and provide the model number and serial number of the instrument If the nature of the problem indicates the need for factory service GE will issue a RETURN AUTHORIZATION number RA and shipping instructions for the return of the instrument to a service center will be provided 2 If GE 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 will evaluate the instrument to determine the cause of the malfunction Then one of the following courses of action will then be taken fthe damage is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned f GE 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 Y January 2007 _PE _ E a Table of Contents Chapter 1 Installation esa ne ED GE ee 1 1 Ma APA IA A A A a sl ae teh 1 1 AA EE ED DE BE
36. ati ns 1 1s Re an Eike 4 5 SDOBIDIERE ans na OR OR OR ne cand EK RE 4 5 at IA Pa AA ex ee Ee MN ER N de 4 5 Preamplifier with Explosion proof HOUSING 4 5 Appendix A CE Mark Compliance WAA Ure ilo S RE EE GT ON OE OE ON MENT A 1 KA EN LG LE DI LA EE tp eMe A 1 Appendix B Data Records Option cards Installed needs B 1 IA AA A et Mattes res Din AN cn nu rl B 2 Appendix C Optional Enclosures IAO HUU aree CE A AT rs dl A de tra dd en le RE EE steg de C 1 Rack Mount Enclosure eee C 1 ROCK MOUA ANNE se dota Aa sa ee nen sen E t id C 1 Rack Mount Front Panel eate Coe et ce d e e ae eat C 2 Appendix D Measuring P and L Dimensions IO AA ae MEC E AE D 1 Measunng P and EDist nees zo ceo tpe area D 1 vi Chapter 1 Installation Introduction ss en a 1 1 UNPGCKING naar ET aa SS 1 1 Site Considerations ss A 1 2 Installing a WA exer re e ER n 1 3 Installing Temperature and Pressure Transmitters 1 5 Mounting the GF868 Enclosure 1 6 Making Electrical Connections 1 6 January 2007 Introduction To ensure safe and reliable operation of the Model GF868 flowmeter for flare gas the system must be installed in accordance with the guidelines established by GE Sensing s engineers This section explains how to install the Model GF868 electronics console and make wiring connections It covers
37. ays Printer Terminal Communications One RS 232 port for printer terminal PC SCADA etc Standard Inputs Two isolated 4 to 20 mA inputs 121 2 load with integral 24 VDC power supply Note These inputs are required for temperature and pressure inputs Standard Outputs Six 4 20 mA outputs software assignable Two outputs for 550 ohm maximum load Four outputs for 1000 ohm maximum load Measurements assignable to any output Velocity 0 to 275 ft s 0 to 85 m s Volumetric flow rate standard or actual Molecular weight 2 to 120 g mol Sound speed 500 to 5000 ft s 150 to 1500 m s Mass flow rate 0 to 4 000 000 Ib h 0 to 2 000 000 kg h 4 2 Specifications January 2007 Input Output Specifications cont Analog Input Options Select up to 3 boards from one of the following types 1 Transmitter Input Board with two isolated 0 4 20 mA inputs and 24 V loop power 2 RTD Input Board with two isolated 3 wire RTD inputs Span 148 to 662 F 100 to 350 C Analog Output Options Select up to 3 additional output boards each with four isolated 4 20 mA outputs 1000 Q maximum load Digital Interfaces Standard RS232 Optional RS485 multiuser RS485 MODBUS HART Ethernet TCP IP MODBUS TCP IP Ethernet Totalizer Frequency Output Options Select up to 3 Totalizer Frequency Output Boards each with four outputs per board 10 kHz max All boards allow software selectable functionin
38. bed in Appendix A CE Mark Compliance 4 If wiring of the unit has been completed reinstall the plastic shroud close the cover on the enclosure and tighten the latches 5 Connect the converter to the control system as described in its User s Manual Installation January 2007 Wiring the Ethernet Interface Wiring the MODBUS TCP Interface A modified GF868 can use the Ethernet interface to communicate to an internal network An optional Ethernet card with a unique MAC IP address installed only in slots 5 or 6 includes an RJ45 connector To connect the Ethernet enabled GF868 to the network insert the jack of an RJ45 cable into the RJ45 connector route the cable through the bottom of the GF868 and wire the other end of the cable to the Ethernet network according to the manufacturer s instructions An external connection is required between the Ethernet option card and the GF868 s RS232 connector as shown in Table 1 2 below Note The MAC address for a specific GF868 is included with customer documentation For more information on setting up the MAC address refer to Chapter 6 of the Programming Manual Table 1 2 RS232 to Ethernet Interconnections Terminal Block Terminal Block GF868 Type Wall Mount Rack Mount RS232 on Main Board TB1 on Ethernet Card TX Pin 1 RX Pin 2 RS232 on Main Board Pin 3 TB2 on Ethernet Card TX Pin 1 RX Pin 2 Pin 3
39. bration of the Service Manual IWARNING To ensure the safe operation of the Model GF868 it must be installed and operated as described in this manual In addition be sure to follow all applicable local safety codes and regulations for the installation of electrical equipment Operation 3 1 January 2007 Powering Up Because the Model GF868 does not have an ON OFF switch it will power up as soon as the connected power source is energized Note For compliance with the European Union s Low Voltage Directive 73 23 EEC 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 ft of the Model GF868 The power cord is the main disconnect device Immediately upon power up the Model GF868 displays GE Sensing and the software version in the left pane of the display window The Model GF868 performs a series of internal checks and display the results in the right pane of the display window Note f the Model GF868 fails any of the internal checks try disconnecting the power and then re powering the unit If the Model GF868 continues to fail any of the internal checks contact the factory for assistance After successfully performing the internal checks the Model GF868 begins taking measurements The power up display is replaced by a measurement mode display similar to that sh
40. cables Specifically do not route transducer cables alongside high amperage AC power cables or any other cables that could cause electrical interference Also protect the cables and connections from the weather and corrosive atmospheres Note Ifyou are using your own cabling to connect the transducers to the electronics console the cabling must have electrical characteristics identical to the cable supplied by GE Sensing Cable must be type RG 62 A U coaxial cable 93 2 and each cable must be the same length within 4 in A flowcell is the section of pipe where the transducers are mounted It can be created either by mounting the transducers on the existing pipeline or on a spoolpiece A spoolpiece is a separately manufactured pipe section matched to the existing pipe which contains ports for mounting the transducers This approach allows the transducers to be aligned and calibrated before mounting the spoolpiece into the pipeline Figure 1 1 on the next page shows a block diagram of a typical Model GF868 system including optional pressure and temperature transmitters For detailed instructions on installing the transducers and or spoolpiece refer to the supplied drawings and the GE Sensing Transducer Installation Guide Caution The manual insertion mechanism systems are for low pressure applications 80 psig 5 5 bar or less Use the appropriate safety precautions when inserting or withdrawing the insertion mechanism In
41. e meter will only accept values from 1 8 to 900 in Note GE Sensing has calculated both the transducer signal path length P and the transducer signal axial length L based on the exact transducer configuration used for the application These values are engraved on the flowcell and or are included in the documentation supplied with the meter Axial Length 6 Press F1 inch or F2 feet to select the units Then enter the Axial Length L of the ultrasonic signal and press ENT Note GE Sensing has calculated both the transducer signal path length P and the transducer signal axial length L based on the exact transducer configuration used for the application These values are engraved on the flowcell and or are included in the documentation supplied with the meter Reynolds Correction 7 Press F1 to turn Reynolds Correction off or F2 to turn it on Note Reynolds Correction is a number based on the Kinematic Viscosity and flow rate of the fluid It should be enabled for most applications a When you enable the Reynolds Correction Factor you must also enter the Kinematic Viscosity of your gas as listed in Sound Speeds and Pipe Size Data Use the numeric keys to enter a value and press ENT 8 Enter a value for the flow Calibration Factor and press ENT The default value is 1 00 The meter will only accept values from 0 5000 to 2 0000 2 8 Initial Setup January 2007 Further Options After compl
42. er the required system information PIPE lets you enter the necessary pipe data As a guide in following the programming instructions in this chapter the relevant portions of the GF868 menu map appear in Figure 2 1 on page 2 10 Note There are minor differences at the start of the ACTIV and SYSTM submenus for the 1 Channel and 2 Channel models but the PIPE submenus are identical The following discussion assumes that the left screen is active If the right screen is active only the function key designations change F1 becomes F5 etc Be sure to record all programming data in Appendix B Data Records Use the keypad as described in the Programming Manual to navigate through the User Program The menu map may be followed in sequence or the T and keys may be used to scroll through the prompt screens The key may be used to delete the last alphanumeric character that was entered from the keypad Initial Setup January 2007 Accessing the User Program 1 Channel Meter 2 Channel Meter To enter the Program Menu press the PROG key on the keypad Note f the security feature is active the GF868 will prompt you for a password Enter the password and press ENT See the SECUR submenu section in Chapter 1 Programming Site Data of the Programming Manual for more information on the security feature For a 1 Channel Model GF868 the measurement mode screen is replaced by the following i
43. eting the above steps the meter returns to the User or Channel PROGRAM prompt Continue as follows To continue programming the meter refer to the menu maps in Appendix A of the Programming Manual and navigate to the desired menu Then proceed to the appropriate section of the manual for instructions To leave the User Program and retain the previous settings press EXIT once for a 1 channel GF868 or twice for a 2 channel GF868 and then press F1 NO at the SAVE prompt Any programming changes will be discarded and you will be returned to the data display To leave the User Program and return to measurement mode press EXIT once for a 1 channel GF868 or twice for a 2 channel GF868 and then press F2 YES at the SAVE prompt Your programming changes will be entered into the meter s memory and you will be returned to the data display Note See the Programming Manual for instructions on using the SAVE submenu Proceed to Chapter 3 Operation for instructions on taking measurements or refer to the Programming Manual for instructions on programming the Model GF868 s advanced features Initial Setup January 2007 2 Channel 1 Channel Fi F2 F3 F4 CH1 CH2 GLOBL SAVE
44. g in two modes Totalizer Mode one pulse per defined unit of parameter e g pulse SCF Frequency Mode 5 volt frequency proportional to magnitude of parameter e g 10 Hz 1 SCFM Alarm Options Select up to 2 boards of one of the following types Standard Relay Board with three non hermetic Form C relays Hermetic Relay Board with three hermetically sealed Form C relays Specifications 4 3 January 2007 Operational Specifications Flow Computer Built in Data Logging Display Functions Printer Signal Output Programmable from the keypad Calculates velocity instantaneous average molecular weight mass flow rate and other flow parameters in real time while simultaneously handling other activities such as programming logging calibration and output of data and diagnostics New and improved MW algorithm now based on temperature and pressure correction of sound speed Gives wider range higher accuracy and improved compensation for non hydrocarbon gases such as CO H N and CO Keypad programmable for setting up log units update interval start and stop times Memory capacity for more than 43 000 data points in a linear or circular log for standard and error logs Graphic display shows flow in numeric or graphic format Also displays logged data and diagnostics Supports wide variety of thermal and impact printers Output data in numeric or graphic strip chart format 4 4
45. haracters Press ENT 4 To select the System Units press F1 to display parameters and measurements in English units or press F2 to display parameters and measurements in Metric units 5 Use the F1 F4 keys to select the type of Pressure Units desired The abbreviations and definitions of all the available pressure units are shown in Table 2 1 below The choices shown on the option bar are determined by the selections made at the previous SYSTEM UNITS prompt Table 2 1 Available Pressure Units PSla Pounds per square inch BARa bar absolute absolute PSIg Pounds per square inch BARg bar gage kPaa kiloPascals absolute kPag kloPoscols gage d If you have entered gage pressure or the local atmospheric pressure PSIg BARg or kPag use the numeric keys to enter the gage pressure value Press ENT 6 At the Stopwatch Totalizer prompt press F1 to totalize all liquid flow continuously or F2 to measure totals manually with the Stopwatch Timer With MNUAL F2 the console key on the keypad is used to start and stop the totalizer See the Programming Manual for details The remainder of the SYSTM submenu is identical for the 1 Channel and 2 Channel versions of the Model GF868 Proceed to the and 2 Channel Meters section to complete the programming of this submenu 2 4 Initial Setup January 2007 A 2 Channel Meter 1 and 2 Channel Meters For the 2 Channel Model GF868
46. he following three general areas the locator bar the prompt area the option bar The upper portion of the screen pane is called the ocator bar While the meter is taking measurements the locator bar displays the name of the currently selected site file In addition the locator bar identifies the task that is currently being performed and the status of that task For example pressing the PROG key on the keypad will cause the locator bar to display PROGRAM and Start to indicate that the meter is ready to be programmed from the start of the User Program Operation January 2007 Using the Display cont At various times one or more of the following four symbols may be displayed on the far right of the locator bar e This symbol which is called the pointer indicates that additional option bar entries are available These options can be accessed by using the lt and gt keys A flashing asterisk indicates that the Model GF868 is currently logging information See the Programming Manual for instructions on creating a log file SorS This symbol indicates the status of the red SHIFT key S indicates that the SHIFT key is activated for the next keystroke only while Sr indicates that the SHIFT key is locked See the next section for instructions on using the keypad T This symbol indicates that the Model GF868 is currently totalizing data The middle portion of t
47. he screen pane is the prompt area This area displays data graphs and logs in measurement mode and menu prompts in programming mode In addition error code messages which are described in the Service Manual are displayed in the prompt area The lower portion of the screen pane is called the option bar The option bar displays the functions assigned to the four keys immediately below the display screen F1 F4 for the left pane and F5 F8 for the right pane Press a function key to select the function listed in the option bar immediately above it If more than four functions are available a pointer D appears on the far right of the locator bar Press the lt or gt keys to display the additional functions on the option bar For information about other symbols and text that may appear on the display screen refer to the Service Manual 3 4 Operation January 2007 Taking Measurements The Model GF868 is capable of displaying several different variables in a variety of formats However this manual will only discuss the basic measurement displays in the default screen format Refer to the Programming Manual for instructions on setting up alternate screen displays and see the Service Manual for a discussion of the diagnostic parameters listed under the DIAG option Note This section assumes that the left pane of the display screen is currently active However the same instructions apply equally to the righ
48. is manual for further instructions Rack Mount Front Panel The keypad and LCD display for the rack mount Model GF868 are located on the front panel These items are identical in form and function to those used on the standard Type 4X enclosure but the layout is somewhat different Refer to Figure C 3 on page C 5 for the front panel layout of the rack mount Model GF868 and follow the standard procedures detailed in the main body of this manual C 2 Optional Enclosures January 2007 4 19 106 se ad el 3 31 84 10 O31 14 83 377 16 99 432 289 300 13 13 333 2 25 57 5 22 133 Figure C 1 Model GF868 Rack Mount Enclosure Dwg 4712 1078 Optional Enclosures C3 January 2007 CH2 TRANSDUCER BNC Description UP Upstream XDCR DN Downstream XDCR CH1 TRANSDUCER BNC Description UP Upstream XDCR DN Downstream XDCR mAANALOG OUTPUTS For compliance with the European Union s Low Voltage Directive 73 23 EEC 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
49. lied in accordance with Article 3 Section 3 sound engineering practices and codes of good workmanship of the Pressure Equipment Directive 97 23 EC for DN 25 Shannon June 1 2002 p WA EEE Mr James Gibson GENERAL MANAGER CE e LS EN 1809002 T V ESSEN Shannon ISO 9001 U S CERT DOC H4 August 2004 DECLARATION Sensing DE CONFORMITE Nous Panametrics Limited Shannon Industrial Estate Shannon County Clare Ireland d clarons sous notre propre responsabilit que les DF868 Liquid Ultrasonic Flowmeter GF868 Flare Gas Ultrasonic Flowmeter GM868 Multi Purpose Gas Ultrasonic Flowmeter GN868 Natural Gas Ultrasonic Flowmeter GS868 Steam Mass Ultrasonic Flowmeter r latif 0 cette d claration sont en conformit avec les documents suivants EN 61326 1998 Class A Annex A Continuous Unmonitored Operation e EN 61010 1 1993 A2 1995 Overvoltage Category Il Pollution Degree 2 suivant les r gles de la Directive de Compatibilit Electromagn tique 89 336 EEC et de la Directive Basse Tension 73 23 EEC Les mat riels list s ci dessus ainsi que les transducteurs pouvant tre livr s avec les manchettes faisant l objet d une d claration de conformit s par e ne portent pas le marquage CE de la directive des quipements sous pression car ils sont fournis en accord avec la directive 97 23 EC des quipements sous pression pour les DN 25 Article 3 section 3 qui concerne les pratiques et les codes de
50. llation January 2007 Wiring an Alarms Option Card The GF868 can accommodate 1 to 6 alarm option card s Each alarm option card provides three Form C relays A B and C The alarm relays on the option card are available in two types general purpose hermetically sealed for Class I Division 2 hazardous areas Chapter 4 Specifications lists the maximum electrical ratings for the relays Each alarm relay can be wired as Normally Open NO or Normally Closed NC In setting up an alarm relay it may be wired for either conventional or fail safe operation In fail safe mode the alarm relay is constantly energized except when it is triggered or a power failure or other interruption occurs See Figure 1 4 below for the operation of a NO alarm relay in both conventional and fail safe mode Connect the two alarm wires required for each relay in accordance with the pin number assignments shown in Figure 1 8 on page 1 17 Conventional Fail Safe not triggered not triggered NO o ALARM ALARM MONITORING MONITORING DEVICE DEVICE ALARM ALARM MONITORING MONITORING DEVICE DEVICE Conventional je da po triggered riggered or power Tallure Figure 1 5 Conventional and Fail Safe Operation Installation 1 13 January 2007 Wiring a 0 4 20 mA Analog Inputs Option Card To calculate standard volumetric flow and mass flow of Flare Gas the GF868 must have temperature and pressure data
51. mpt or press F2 to activate the channel in BURST mode 3 Press F1 to select Skan mode or F2 to select Skan Measure mode The meter will exit the ACTIV submenu and return to the channel menu screen As indicated in the above prompt the Model GF868 flowmeter can take measurements in two different ways Skan is a low resolution technique for locating the acoustic signal and for high velocity measurements It is more robust in a noisy environment than the Measure technique Measure is a more precise technique best used for low velocity measurements If Skan is selected at the next prompt the instrument uses this technique exclusively However if S M is selected the meter uses Skan to find the acoustic signal and then tries to use the Measure technique for a more precise measurement Proceed directly to the next section to program the SYSTM submenu Initial Setup January 2007 Entering System Data for a Channel 1 Channel Meter Begin the programming of the SYSTM submenu in either the Channel or 2 Channel section below For the 1 Channel Model GF868 the information entered in the SYSTM submenu pertains to the global operation of the flowmeter 1 Atthe User Program screen press the F2 function key to program the SYSTM submenu 2 Enter a Site Label of up to 9 characters and press ENT While taking measurements the site label will appear on the locator bar 3 Enter a Site Message of up to 21 c
52. n Table 2 3 above 10 Use the F1 F4 to specify the Mass Decimal Digits the number of digits to the right of the decimal point for displaying totalized mass flow The meter returns to the initial User or Channel Program screen Proceed directly to the next section to program the PIPE submenu 2 6 Initial Setup January 2007 Entering Pipe Data Transducer Number Pipe OD The PIPE submenu permits entry of the transducer and pipe specifications To program this menu complete the following steps 1 At the User or Channel Program screen press F3 to program the PIPE submenu 2 Enter the Transducer Number normally engraved on the head of the transducer Press ENT If there is no engraved number complete the steps below Otherwise proceed to step 3 IMPORTANT Special transducers which have no engraved number on the head are rarely used Examine the transducer head carefully for a number d Assign a number between 91 and 99 to the Special Transducer and press ENT The meter will only accept values from 1 to 199 b Use the gt and F1 F4 keys to select the Frequency of the special transducer The meter can not transmit an excitation voltage at the transducer s natural frequency without this data c Enter the special transducer Time Delay Tw value supplied by GE Sensing Press ENT The meter will only accept values from 0 to 1000 usec Note Tw is the time required for the tran
53. nitial programming mode screen At the User Program screen shown press the F1 function key and proceed to Activating a Channel on the next page aia Sa EZZ NS For a 2 Channel Model GF868 the following two step sequence is required to reach the initial programming screen Cul di Press F1 or F2 to select the submenu for Channel 1 or Channel2 respectively from the option bar CH1 CH2 ETH EE PROGR Scu d At the User Program screen shown press the F1 function key and proceed to Activating a Channel on the next page Rana Sai Pire vo Only the submenus ACTIV SYSTM and PIPE are discussed in this manual Refer to the Programming Manual for information on the other submenus Note In this manual only the programming of Channel I will be described To program Channel 2 simply repeat the same procedures presented for Channel 1 Initial Setup January 2007 Activating a Channel 1 Channel Meter 2 Channel Meter 1 and 2 Channel Meters The ACTIV submenu permits selection of the desired measurement method In addition it is used to activate deactivate one or both of the channels in a 2 Channel Model GF868 1 Enter the ACTIV submenu by pressing F1 at the User PROGRAM prompt 2 Press F1 to activate the channel in BURST mode 1 Enter the ACTIV submenu by pressing F1 at the Channel PROGRAM prompt 2 Press F1 OFF to deactivate the channel and return to the Channel PROGRAM pro
54. nt Wiring Upon request the Model GF868 flowmeter may be supplied in an enclosure other than the standard Type 4X enclosure described in Chapter 1 Installation of this manual Although the standard installation and wiring instructions still apply in general terms some of the details may vary for different enclosure types Refer to the appropriate sections of this appendix for the specific type of enclosure provided The Model GF868 flowmeter is available in a rack mount enclosure for installation in a standard 19 electronics rack Refer to Figure C 1 on page C 3 for the dimensions of this unit Simply slide the Model GF868 into the rack at the desired height and fasten the unit securely to the rack with four screws in the locations provided at the sides of the front panel After the unit has been physically mounted into the rack proceed to the next section for instructions on wiring the meter The rack mount Model GF868 requires exactly the same electrical connections as the standard version However the locations and type of connectors used for the various components are different Refer to Figure C 2 on page C 4 and complete the following steps 1 Wire the power input on the right side of the rear panel as follows a Make sure a fuse item 4 of the proper size and type is installed b Connect the female end of the line cord provided to the power input receptacle item 3 c Connect the earth ground screw terminal item
55. own in Figure 3 1 below Note As a minimum the system and pipe parameters for each installed channel of a 2 channel meter must be entered before the Model GF868 can display valid data Refer to Chapter 2 Initial Setup for specific instructions SITE1 PIPET Velocity m s Volumetric SCM M 6 95 1038 7 Figure 3 1 A Typical Measurement Display Proceed to the next section for a description of the components of the Model GF868 display screen 3 2 Operation January 2007 Using the Display The Model GF868 display is divided into a left pane and a right pane The two screen panes can be set independently to display any of the available measurement or diagnostic parameters The components of a typical measurement mode screen are shown in Figure 3 2 below Locator Bar Pointer Ch1 no label gSITE gt Velocity Ft s Error Code 6 95 NCh1 Et Low Signal NG Prompt Area EU EEN Option Bar Figure 3 2 Display Screen Components Both panes of the display screen are continuously updated but only one pane at a time may be programmed or changed To select a pane press the corresponding side of the SCREEN key on the keypad The currently selected screen pane will have function names in the option bar while the other screen pane will have a blank option bar See the Programming Manual for detailed instructions on using the keypad As shown in Figure 3 2 above each pane of the display screen is divided into t
56. rement Parameter Options Option Bar Choice F1 VEL Flow Velocity F2 VOLUM Volumetric Flow F3 TOTL Forward Totalized Volume Flow F4 TOTL Reverse Totalized Volume Flow gt F1 TIME Total Flow Measurement Time F2 MDOT Mass Flow gt F3 MASS Forward Totalized Mass Flow gt F4 MASS Reverse Totalized Mass Flow gt gt F1 DIAG Diagnostic Available only if Mass Flow static VES By following the instructions in this section the Model GF868 can be set up to display the desired channel option for a 2 Channel meter and the desired measurement parameter To utilize the more advanced display capabilities of the Model GF868 refer to the Programming Manual and or the Service Manual for the instrument Foundation Fieldbus provides a means of communicating with the flowmeter The patent numbers which apply are 5 909 363 and 6 424 872 This Foundation Fieldbus device supports two Analog Input AI blocks which can be configured to supply the following measurements on the network see Table 3 3 on page 3 7 3 6 Operation January 2007 Table 3 3 Measurement Parameter Options Using a Foundation Fieldbus Device Channel 1 Units Channel 2 Units Ch1 Velocity ft s or m s Ch2 Velocity ft s or m s Avg Velocity ft s or m s Ch1 Act Volumetric VOL U Ch2 Act Volumetric VOL U Avg Act Volumetric VOL U
57. sducer signal to travel through the transducer and its cable This time delay must be subtracted from the transit times of the upstream and downstream transducers to ensure an accurate measurement 3 Enter the known Pipe OD or circumference and use the F1 F4 keys to select the appropriate units Press ENT The meter will only accept values from 1 8 to 648 in The option bar choices may appear in English or Metric units Obtain the required information by measuring either the pipe outside diameter OD or circumference at the transducer installation site The data may also be obtained from standard pipe size tables Table 2 4 below lists the available English and metric OD units Table 2 4 Available Pipe OD Units inch pipe OD in inches mm pipe OD in millimeters feet pipe OD in feet m pipe OD in meters in PI pipe circumference in mm PI pipe circumference in inches millimeters ft Pl pipe circumference in m PI pipe circumference in feet meters Initial Setup 2 7 January 2007 Pipe Wall 4 Use the numeric keys to enter the known thickness of the Pipe Wall Press ENT If the pipe wall thickness is not available look up the value in a table of standard pipe size data or use the Model GF868 s on line Help Menu see the Programming Manual for details Path Length 5 Press F1 inch or F2 feet to select the units Then enter the Path Length P of the ultrasonic signal Press ENT Th
58. stallation January 2007 Installing a Flowcell cont Temperature Transmitter Pressure Transmitter Preamp Transducer Flowcell Transducer Electronics Console Figure 1 1 Model GF868 Flowmeter System 1 4 Installation January 2007 Installing Temperature Temperature and pressure transmitters may be installed as part of the and Pressure flowcell near the ultrasonic transducer ports Be sure to observe the Transmitters siting requirements mentioned earlier These transmitters must use a 0 4 to 20 mA signal to transmit temperature and pressure values to the GF868 console The console in turn provides 24 VDC power to the transmitter You can use any desired transmitters or sensors however they must have an accuracy of 0 5 of the reading or better Note Resistive Thermal Devices RTDs are typically used to measure temperature Typically a 1 2 or 3 4 NPT female threaded port is used to mount the transmitters on the flowcell If the pipeline is insulated you may need to extend the coupling to provide convenient access Of course you may also use other types of mounting ports including flanged ports for the transmitters The 4 to 20 mA transmitters typically mount directly into the ports as shown in Figure 1 2 below The temperature sensor should protrude 1 4 to 1 2 way into the pipe Temperature Transmitter Pressure Transmitter Isolation Valve Thermowell Coupling Flowcell Wall
59. t screen pane when it is active Just change the function keys from F1 F4 to F5 F8 For a 2 channel Model GF868 the following initial screen appears immediately upon completion of the internal checks As an example the display shows the measured velocity in ft sec for Channel 1 Ch1 Channel Label PRIME di To select a different channel Chi Velocity Ft s display option press F1 F4 or gt and F1 See Table 3 1 6 9 5 below for a complete description of the available options error codes appear here chi che sum DIF Table 3 1 Channel Display Options Option Bar Choice F1 CH1 Channel 1 F2 CH2 Channel 2 F3 SUM Channel 1 Channel 2 F4 DIF Channel 1 Channel 2 gt F1 AVE Channel 1 Channel 2 2 The following screen appears after selection of the channel mode display option for a 2 channel Model GF868 or immediately after the internal checks for a 1 channel Model GF868 Chi label eS Use the F1 F4 and gt Ch1 Velocity Ft s keys to select the desired display parameter option See Table 3 6 9 5 2 on page 3 6 for a complete K description of the available error codes appear here options veL SUI Bied TOTL Operation 3 5 January 2007 Taking Measurements cont Foundation Fieldbus Communications Note CAI or Ch2 which is shown in parentheses above appears only with a 2 Channel Model GF868 Table 3 2 Measu
60. th Measurement 2 to 5 of reading at 1 to 275 ft s 40 3 to 85 m s 2 Path Measurement 1 4 to 3 5 of reading at 41 to 275 ft s 40 3 to 85 m s Note Specifications assume a fully developed flow profile This is installation dependent and may require a straight run of pipe 20 diameters upstream and 10 diameters downstream Accuracy depends on whether measurement is 1 or 2 path Bi directional 275 to 0 1 ft s 85 to 0 03 m s 40 1 to 275 ft s 0 03 to 85 m s Molecular Weight hydrocarbon mixtures MW 2 to 120 g mol 1 8 optimizable for other gas composition Mass Flow hydrocarbon mixtures typical 1 path 3 to 7 2 path 2 4 to 596 Note Dependent on accuracy of temperature and pressure inputs 2750 1 1 at 0 5 to 100 ft s 15 cm s to 30 m s Specifications 4 1 January 2007 Electrical Specifications Power Supply Input Options 100 to 130 VAC 50 60 Hz with 1 0 A Slo Blo Fuse 200 to 265 VAC 50 60 Hz with 0 5 A Slo Blo Fuse 12 to 28 VDC with 3 0 A Slo Blo Fuse Power Usage 20 W maximum Protection Built in mains power surge lightning protection European Compliance This unit complies with EMC Directive 89 336 EEC and 73 23 EEC Low Voltage Directive Installation Category II Pollution Degree 2 and PED 97 23 EC for DN 25 Input Output Keypad Specifications 39 key membrane keypad with tactile feedback Display Two independent software configurable 64 x 128 pixel LCD graphic displ
61. the L distance is measured to be 10 00 inches Then the P distance is calculated to be P 10 00 0 707 14 14 inches With a Bias 90 transducer installation it sometimes happens that the only known parameters are the transducer angle 0 and the centerline distance between the transducer bodies CL In these cases it is still possible to calculate both P and L by combining Equation D 1 above with additional Equation D 2 below see Figure D 1 on page D 2 P CL 12 D 2 Standard GE Sensing 90 transducers have the face offset from the centerline of the body by 0 6 inches Thus a pair of transducers has a total offset of 1 2 inches as indicated in Equation D 2 above For example suppose that the transducer installation angle is 30 and CL is measured to be 12 00 inches Then P 2 12 00 1 2 11 80 inches and L 11 80 x 0 866 10 93 inches Measuring P and L Dimensions D 1 January 2007 180 Installation Pipe Thickness SO N Bias 90 Installation Figure D 1 Top View of Transducer Installations D 2 Measuring P and L Dimensions January 2007 Index A F Abbreviations Volumetric amp Totalizer Units 2 5 Fieldbus Network 1 12 ACTIV Submenu 2 3 Connections 1 12 Alarm Options 4 3 Flow Accuracy 4 1 Alarms Option Card Flow Computer 4 4 Pin Assignments
62. the guidelines given in this section when planning your GF868 system installation Normally the GF868 electronics enclosure is a Type 4X weather resistant dust tight indoor outdoor type Other enclosure options are described in Appendix C Typically the electronics console is mounted in a meter shed If it is not select a location that allows you access to your meter for programming testing and servicing Note For compliance with the European Union s Low Voltage Directive IEC 1010 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 6 ft 1 8 m of the GF868 The pipeline flowcell consists of the flowmeter transducers and any pressure and temperature transducers that may be used as part of the flowmeter system Ideally the section of pipe chosen as the flowcell should be a pipe section with easy access for example a long stretch of pipe that is above ground However if the flowcell must be on an underground pipe dig a pit around the pipe to facilitate the transducer mechanisms For a given gas and pipe the Model GF868 s accuracy depends primarily on the location and alignment of the transducers on the pipe In addition to accessibility when planning for transducer location consider the following guidelines Locate the transducers so that there are at least 20 pipe diameters of s
63. tive leads to a length 0 5 in 1 cm shorter than the ground lead This ensures that the ground is the last lead to detach if the power cable is forcibly disconnected from the meter If the unitis so equipped remove the plastic shroud that covers the terminal blocks Be sure to reinstall the shroud after all of the wiring has been completed Strip 1 4 in of insulation from the end of each of the three line power leads Connect line power to terminal block TB1 as shown in Figure 1 8 on page 1 17 IWARNING IMPROPER CONNECTION OF LINE POWER MAY DAMAGE YOUR UNIT IT MAY ALSO RESULT IN HAZARDOUS VOLTAGESAT THE FLOWCELL AND ASSOCIATED PIPING AND AT THE ELECTRONICS CONSOLE ENCLOSURE Installation 1 7 January 2007 Wiring the Transducers Wiring the GF868 ultrasonic flare gas flowmeter system requires interconnection of the following components a pair of transducers mounted in the flowcell apreamplifier for each channel anoptional lightning protector the GF868 console Use a coaxial cable to make all connections between the console and the transducers Connect the transducers to terminal block CH1 as shown in Figures 1 7 and 1 8 on pages 1 16 and 1 17 respectively IWARNING Before connecting the transducers discharge any static buildup in a safe area by shorting the center conductor of the transducer cables to the metal shield of the cable connector 1 8 Installation January 2007
64. traight undisturbed flow upstream and 10 pipe diameters of straight undisturbed flow downstream from the measurement point To ensure undisturbed flow avoid sources of turbulence in the fluid such as valves flanges expansions and elbows swirl and dips or low spots in which condensed liquid may collect Because condensate or sediment that collects at the bottom of the pipe may cause increased attenuation of the ultrasonic signal locate the transducers on the side of a horizontal pipe where possible If limited pipe access necessitates top mounted transducers and the sound beam path includes a reflection shift the transducers to at least 10 off top center This will minimize the influence of any sediment on the reflected ultrasonic signals Locate the transducers as close as possible to the electronics console GE Sensing can supply transducer cables up to 500 ft 153 m in length For longer distances consult the factory Installation January 2007 Temperature and Pressure When installing temperature and pressure transmitters locate them Transmitters Transducer Cables Installing a Flowcell downstream of the flowmeter transducers These transmitters should be positioned no closer to the flowmeter transducers than 2 pipe diameters and no further away from the transducers than 20 pipe diameters When installing the transducer cables always observe established standard practices for the installation of electrical
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DigitalFlow™ GF868 - Procon Systems Inc.

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DigitalFlow™ GF868 - Procon Systems Inc.