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Chapter 4. Specifications

4-1

DigitalFlow™ GC868 Startup Guide (1 and 2-Channel)

4.1

General

The general specifications for the Model GC868 flowmeter are divided into the

following categories:

4.1.1

Hardware

Configuration

Package Options:

Epoxy-coated aluminum (standard)

Weatherproof Type 4X IP66

Stainless Steel

Explosion-proof

Flameproof

Fiberglass

Physical (for standard package):

Size: 14.24



11.4



5.12 in. (362



290



130 mm)

Weight: 11 lb (5 kg)

4.1.2

Flow Accuracy



2% to ±5% of reading for pipes under 6 in. (150 mm)

±1% to ±2% of reading for pipes greater than 6 in. (150 mm)

Note:

Specifications assume a fully developed flow profile, with a straight run of

pipe 20 diameters upstream and 10 diameters downstream. Accuracy

depends on pipe size, number of paths, and other factors.

4.1.3

Environmental

Ambient Operating Temperature:

-4° to 131°F (–20° to 55°C)

Storage Temperature:

–67° to 167°F (–55° to 75°C)

4.1.4

Range

See Tables 1-1, 1-2 and 1-3 in Chapter 1.

4.1.5

Rangeability

(Overall)

150:1

4.1.6

Repeatability



0.2% to ±0.5% at 1 to 100 ft/s (0.3 to 30 m/s).

4.1.7

Response Time

For a 1–91% Step Change:

3 seconds to within 1% of final value

4.2 Electrical

The electrical specifications for the Model GC868 flowmeter are divided into the

following categories:

4.2.1

Power Supply

Input Options:

100 to 130 VAC, 50/60 Hz with 1.0 A Slo-Blo Fuse

200 to 240 VAC, 50/60 Hz with 0.5 A Slo-Blo Fuse

12 to 28 VDC with 3.0 A Slo-Blo Fuse, ±5%

4.2.2 Power Usage

20 W maximum

4.2.3 Operating Mode

Transit-time flow measurement for gas.

4.2.4 European

Compliance

This unit complies with EMC Directive 89/336/EEC and 73/23/EEC Low Voltage

Directive (Installation Category II, Pollution Degree 2)

Содержание DigitalFlow GC868

Страница 1: ...panametrics com 910 226UF1 April 2022 DigitalFlow GC868 Panametrics Gas Clamp On Ultrasonic Flowmeter Startup Guide 1 and 2 Channel...

Страница 2: ......

Страница 3: ...istered trademarks of Baker Hughes Company and its subsidiaries in one or more countries All third party product and company names are trademarks of their respective holders DigitalFlow GC868 Panametr...

Страница 4: ...ii no content intended for this page...

Страница 5: ...particular purpose and warranties arising from course of dealing or usage or trade Return Policy If a Panametrics instrument malfunctions within the warranty period the following procedure must be co...

Страница 6: ...Warranty iv DigitalFlow GC868 Startup Guide 1 and 2 Channel no content intended for this page...

Страница 7: ...with All Fixtures 1 20 1 5 4 Installing the PDJ Damping Jacket 1 21 1 6 Installing Temperature and Pressure Transmitters 1 22 1 7 Mounting the GC868 Electronic Console 1 23 1 8 Making Electrical Conne...

Страница 8: ...e 4 1 4 1 5 Rangeability Overall 4 1 4 1 6 Repeatability 4 1 4 1 7 Response Time 4 1 4 2 Electrical 4 1 4 2 1 Power Supply 4 1 4 2 2 Power Usage 4 1 4 2 3 Operating Mode 4 1 4 2 4 European Compliance...

Страница 9: ...Channel vii Contents Appendix B Data Records B 1 Option Cards Installed B 1 B 2 Initial Setup Data B 2 Appendix C Optional Enclosures C 1 Introduction C 1 C 2 Rack Mount Enclosure C 1 C 3 Rack Mount W...

Страница 10: ...Contents viii DigitalFlow GC868 Startup Guide 1 and 2 Channel no content intended for this page...

Страница 11: ...roduction 1 1 Unpacking 1 1 Site Considerations 1 1 Installing Damping Material Transducers and Fixtures 1 3 Installing Damping Material 1 17 Installing Temperature and Pressure Transmitters 1 22 Moun...

Страница 12: ...ype 4X weather resistant dust tight indoor outdoor type Typically the electronics console is mounted in a meter shed When choosing a mounting site make sure that the location permits easy access to th...

Страница 13: ...are required consult the factory for assistance 1 3 5 Temperature and Pressure Transmitters When installing temperature and or pressure transmitters locate them downstream of the flowmeter transducers...

Страница 14: ...ng fixture for pipes from 8 to 12 in 200 to 300 mm The PI clamping fixture for pipes from 12 to 24 in 300 to 600 mm Figure 1 1 below illustrates the V series and PI fixture assemblies Complete the ste...

Страница 15: ...the tables Table 1 1 GC868 Installation Requirements for Air Nitrogen Oxygen or Argon Pipe Size ANSI DIN Pipe Wall Inches mm Transduc er MHz Min Pressure psig bar Maximum Velocity ft s m s Single Trav...

Страница 16: ...3 10 1 0 2 200 13 6 82 25 66 20 1 49 14 9 0 50 12 7 0 5 180 13 4 55 16 8 44 13 4 33 10 1 0 2 600 40 8 82 25 66 20 1 49 14 9 1 00 25 4 0 5 300 21 7 55 16 8 44 13 4 33 10 1 0 2 1000 68 82 25 66 20 1 49...

Страница 17: ...2 250 17 150 45 7 120 36 6 90 27 4 0 50 12 7 0 5 400 28 6 100 30 5 80 24 4 60 18 3 0 2 500 34 150 45 7 120 36 6 90 27 4 0 88 22 4 0 5 800 56 2 100 30 5 80 24 4 60 18 3 0 2 1000 68 150 45 7 120 36 6 90...

Страница 18: ...n however additional pipe surveys may provide data that can lead to modifications for optimal installation 24 600 0 38 9 7 0 2 300 21 7 56 17 1 42 12 8 34 10 4 0 50 12 7 0 2 800 56 2 Table 1 3 GC868 I...

Страница 19: ...h point three times and record the mean values If the maximum variation between the five points exceeds 0 25 mm 0 010 in find another location Figure 1 3 Measuring Thickness Along the Pipe Axis 3 Meas...

Страница 20: ...is not necessary 1 4 3 Obtaining the Transducer Spacing 1 Using the measured OD and the pipe wall thickness program the GC868 discussed in Chapter 2 Initial Setup to determine the required transducer...

Страница 21: ...o install the V Series clamping fixture and transducers complete the following steps 1 4 4 1 Installing the Fixture 1 Position the half of the clamping fixture with the threaded rods around the pipe a...

Страница 22: ...ransducer Face Note Do not slide the transducer with couplant along the surface of the pipe when mounting the transducer 2 Set the first mounting block either left edge or right edge at a convenient n...

Страница 23: ...left edge or right edge to right edge Figure 1 11 below shows typical positioning Figure 1 11 V4 Fixture Top View 4 In a similar manner install the second transducer as shown in Figure 1 11 above 1 4...

Страница 24: ...s point will be the 3 o clock position on a horizontal pipe Mark each of the two circumferential lines at the zero point Connect each of these marks using a straight edge for example the edge of the l...

Страница 25: ...wing steps describe how to install the PI fixture with a supplied chain or strap 1 Carefully wrap the chain or strap around the pipe taking care not to twist it 2 Loosen the wing nuts up to the end of...

Страница 26: ...spacing discussed on page 1 9 1 Measure the spacing from the zero point the point of circumferential origin Mark the spacing point with a crosshair on the opposite side of the pipe 180 from the zero...

Страница 27: ...e on each transducer face see Figure 1 21 below Figure 1 21 Couplant on Transducer Face Note Do not slide the transducer with couplant along the surface of the pipe when mounting the transducer 3 With...

Страница 28: ...Note Consult a Panametrics flowmeter applications engineer or sales engineer if you have any questions regarding damping material 1 5 1 Installing DMP 1 Damping Material with CFG V Series Fixtures 1...

Страница 29: ...n Figure 1 24 below Figure 1 24 DMP 1 Material with Transducer Footprint Cut Out 9 To remove any residual adhesive clean the cut out area with a rag or a piece of sandpaper 10 Reinstall the fixture an...

Страница 30: ...igure 1 26 Distance Between Transducer Noses 3 Lay the first strip of damping material flat Cut a strip to a width equal to the distance between transducer faces the distance illustrated in Figure 1 2...

Страница 31: ...shown in Figure 1 28a below If the finish is mirror smooth roughen the surface Figure 1 28 Filing a and Degreasing b the Pipe Surface 4 While wearing appropriate gloves degrease the surface as shown...

Страница 32: ...structure and the fixture as well 1 5 4 Installing the PDJ Damping Jacket If the pipe temperature is over 150 F you must use the PDJ pipe damping jacket with preapplied DMP 3 As the damping material d...

Страница 33: ...the Model GC868 electronics console In turn the electronics console can provide a 24 VDC signal to power the transmitters if wired in that configuration Any desired transmitters or sensors may be use...

Страница 34: ...unit IMPORTANT For meters supplied in one of the optional enclosure styles refer to Appendix C Optional Enclosures for the appropriate wiring diagram and specific wiring instructions Except for the po...

Страница 35: ...cessible and located within 1 8 m 6 ft of the Model GC868 Refer to Figure 1 35 on page 1 25 or Figure 1 42 on page 1 43 to locate terminal block TB1 and connect the line power as follows 1 Remove the...

Страница 36: ...pair of lightning protectors per channel optional the electronics console Refer to the typical transducer flowcell wiring system in Figure 1 43 on page 1 44 and complete the following steps 1 TB1 N L...

Страница 37: ...r wiring The current loop impedance for these circuits must not exceed 550 ohms Refer to Figure 1 42 on page 1 43 for the location of terminal block I O and wire the terminal block as shown 1 8 4 Wiri...

Страница 38: ...connect 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 c...

Страница 39: ...J45 connector To connect the MODBUS TCP enabled GC868 to the network insert the jack of an RJ45 cable into the RJ45 connector route the cable through the bottom of the GC868 and wire the other end of...

Страница 40: ...s The maximum electrical ratings for the relays are listed in Chapter 4 Specifications Each of the three alarm relays can be wired either as Normally Open NO or Normally Closed NC In setting up an ala...

Страница 41: ...her input is used to process the pressure signal Note To enter programming data during operation of the meter it will be necessary to know which input is assigned to which process parameter This infor...

Страница 42: ...have been calibrated first See Chapter 1 Calibration in the Service Manual for the appropriate procedures 1 8 6 1 Wiring a Totalizer Frequenc y Outputs Option Card The Model GC868 can accommodate up...

Страница 43: ...block in accordance with the pin number assignments shown in Figure 1 42 on page 1 43 1 8 9 Wiring the MODBUS Option Card The modified GC868 uses the RS485 standard for MODBUS communications This stan...

Страница 44: ...Chapter 1 Installation 1 33 DigitalFlow GC868 Startup Guide 1 and 2 Channel no content intended for this page...

Страница 45: ...00 203 1 40 36 10 74 273 1 54 39 1 65 42 2 26 57 1 50 38 1 77 45 1 30 33 2 26 57 1 20 30 1 2 Conduit Plate 11 37 289 3 4 Conduit Plate 2 87 7 00 2 69 68 0 75 19 0 38 10 4 Places 0 13 3 4 Places 0 88 2...

Страница 46: ...Chapter 1 Installation DigitalFlow GC868 Startup Guide 1 and 2 Channel 1 43 G N L2 L1 G Figure 1 42 Model GC868 Electronics Console Wiring ref dwg 702 213 sht 1 of 2...

Страница 47: ...Chapter 1 Installation DigitalFlow GC868 Startup Guide 1 and 2 Channel 1 44 Figure 1 43 Model GC868 Transducer Wiring ref dwg 702 213 sht 2 of 2...

Страница 48: ...Chapter 1 Installation DigitalFlow GC868 Startup Guide 1 and 2 Channel 1 45 no content intended for this page...

Страница 49: ...up Guide 1 and 2 Channel Chapter 2 Initial Setup Introduction 2 1 Navigating Through the User Program 2 1 Accessing the User Program 2 2 Activating a Channel 2 3 Entering System Data for a Channel 2 3...

Страница 50: ...election of the desired measurement method for a 2 Channel meter it is also used to activate a channel SYSTM prompts the user to enter the required system data PIPE prompts the user to enter the requi...

Страница 51: ...al programming screen 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...

Страница 52: ...ode is used primarily for liquid detection applications Measure is a more precise technique best used for low velocity measurements You can choose from Skan Measure Count the default technique or Skan...

Страница 53: ...re 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 ver...

Страница 54: ...a Use the F1 F4 keys to select the Mass Flow units listed in Table 2 3 below b Use the F1 F4 keys to select the Mass Flow Time units c Use the F1 F4 keys to select the MDOT DECIMAL DIGITS the number...

Страница 55: ...ecial transducer Time Delay Tw value supplied by the factory Press ENT The meter will only accept values from 0 to 1 000 sec Note Tw is the time required for the transducer signal to travel through th...

Страница 56: ...s selected enter the speed of sound in feet per second in the gas to be measured Press ENT The meter will only accept values from 125 to 9 000 ft sec or from 38 1 to 2 743 2 m s 2 6 7 Reynolds Correct...

Страница 57: ...programming the meter refer to the menu maps in the Programming Manual and navigate to the desired menu Then proceed to the appropriate section of the manual for instructions To leave the User Progra...

Страница 58: ...Chapter 2 Initial Setup 2 9 DigitalFlow GC868 Startup Guide 1 and 2 Channel no content intended for this page...

Страница 59: ...1 SEC HR F4 3 F3 F2 1 F1 0 2 MASS FLOW TIME MDOT DECIMAL DIGITS F4 3 F3 F2 1 F1 0 2 MASS DECIMAL DIGITS MASS TOTALIZER F4 F1 500k 25k F3 F2 100k F1 50k F2 200k FREQUENCY 33k F1 SPEC TRANSDUCER NUMBER...

Страница 60: ...Chapter 2 Initial Setup DigitalFlow GC868 Startup Guide 1 and 2 Channel 2 11 no content intended for this page...

Страница 61: ...DigitalFlow GC868 Startup Guide 1 and 2 Channel Chapter 3 Operation Introduction 3 1 Powering Up 3 1 Using the Display 3 2 Taking Measurements 3 3...

Страница 62: ...the software version in the left pane of the display window The Model GC868 performs a series of internal checks and display the results in the right pane of the display window Note If the Model GC868...

Страница 63: ...ask 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...

Страница 64: ...of the display screen is currently active However the same instructions apply equally to the right screen pane when it is active Just change the function keys from F1 F4 to F5 F8 For a 2 channel Mode...

Страница 65: ...advanced display capabilities of the Model GC868 refer to the Programming Manual and or the Service Manual for the instrument 3 4 1 Foundation Fieldbus Communications Foundation Fieldbus provides a me...

Страница 66: ...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 Ch...

Страница 67: ...DigitalFlow GC868 Startup Guide 1 and 2 Channel Chapter 4 Specifications General 4 1 Electrical 4 1 Operational 4 3 Transducer 4 3 Pipe Requirements 4 4...

Страница 68: ...size number of paths and other factors 4 1 3 Environmental Ambient Operating Temperature 4 to 131 F 20 to 55 C Storage Temperature 67 to 167 F 55 to 75 C 4 1 4 Range See Tables 1 1 1 2 and 1 3 in Chap...

Страница 69: ...g Input Options Select up to 3 boards of 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 inpu...

Страница 70: ...nctions Liquid crystal graphic display shows flow in numeric or graphic format Also displays logged data and diagnostics 4 3 4 Printer Signal Output Supports wide variety of thermal and impact printer...

Страница 71: ...inch 19 to 600 mm and larger Consult the factory 4 5 2 Pressure Requirements Refer to Tables 1 1 1 2 and 1 3 in Chapter 1 4 5 3 Pipe Wall Thickness Up to Schedule 80 Thicker walls require greater gas...

Страница 72: ...Chapter 4 Specifications 4 5 DigitalFlow GC868 Startup Guide 1 and 2 Channel no content intended for this page...

Страница 73: ...DigitalFlow GC868 Startup Guide 1 and 2 Channel Appendix A CE Mark Compliance Appendix A CE Mark Compliance Introduction A 1 Wiring A 1...

Страница 74: ...an external ground wire attached Note If the Model GC868 is wired as described in this appendix the unit will comply with the EMC Directive 89 336 EEC Table A 1 Wiring Modifications Connection Cable...

Страница 75: ...DigitalFlow GC868 Startup Guide 1 and 2 Channel Appendix B Data Records Appendix B Data Records Option Cards Installed B 1 Initial Setup Data B 2...

Страница 76: ...Whenever an option card is installed in one of the Model GC868 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...

Страница 77: ...an S Mi S Mc S Cor System Parameters SYSTEM 1 Channel 2 Channel Site Label Chan 1 Label Site Message Chan 1 Message System Units English Metric Chan 2 Label Pressure Units Chan 2 Message Stopwatch Tot...

Страница 78: ...l Path Length P Path Length P Axial Length L Axial Length L Fluid Type Nat Gas Air Steam Other Fluid Type Nat Gas Air Steam Other Other Sndspd Other Sndspd Cal Factor Cal Factor Reynolds Corr Yes No R...

Страница 79: ...DigitalFlow GC868 Startup Guide 1 and 2 Channel Appendix C Optional Enclosures Appendix C Optional Enclosures Introduction C 1 Rack Mount Enclosure C 1 Rack Mount Wiring C 1 Rack Mount Front Panel C 1...

Страница 80: ...a ground point on the rack 2 Wire the transducers as follows a Connect the pair of cables supplied with the meter to the Channel 1 upstream and downstream BNC transducer connectors on the left side of...

Страница 81: ...igitalFlow GC868 Startup Guide 1 and 2 Channel C 3 GC868 19 00 483 18 25 464 2 25 5 22 11 37 11 82 13 13 4 19 106 15 70 399 3 31 84 14 83 377 16 99 432 289 300 333 57 133 Figure C 1 Model GC868 Rack M...

Страница 82: ...put A SIG Output A RTN Output D SIG Output D RTN Output C SIG Output C RTN 7 8 6 4 5 2 3 1 7 8 6 4 5 2 3 1 0 4 20 mA ANALOG OUTPUTS Pin Pin Description Output A Normally Open NO Output D Normally Open...

Страница 83: ...GC868 PRNT LOG SCREEN CAL HELP P V I H CLR O DISP Q PROG W J EXIT 6 N U 3 0 S 1 Y 4 L R X K ENT T 2 Z 5 M B A C G 9 7 E D 8 F Handle Mounting Holes Mounting Holes Main Keypad Console Keys Function Key...

Страница 84: ...Appendix C Optional Enclosures DigitalFlow GC868 Startup Guide 1 and 2 Channel C 6 no content intended for this page...

Страница 85: ...4 Pointer 3 2 Prompt Area 3 2 Selecting 3 2 Using 3 2 E Electrical Connectors 1 23 Electronics Console Description 1 1 Mounting 1 23 Ethernet Wiring 1 28 F Flowcell Description 1 1 Foundation Fieldbus...

Страница 86: ...1 7 Symbols Locator Bar 3 2 SYSTM Submenu for 1 Channel Meter 2 3 for 2 Channel Meter 2 4 T Temperature Transmitter Installing 1 22 Location 1 2 RTD 1 22 Terminal Block Analog Outputs I O 1 26 Power T...

Страница 87: ...lamp On Ultrasonic Flowmeter to which this declaration relates are in conformity with the following standards EN 61326 1998 Class A Annex A Continuous Unmonitored Operation EN 61010 1 1993 A2 1995 Ove...

Страница 88: ...Ultrasonic Flowmeter r latif cette d claration sont en conformit avec les documents suivants EN 61326 1998 Class A Annex A Continuous Unmonitored Operation EN 61010 1 1993 A2 1995 Overvoltage Categor...

Страница 89: ...da die Produkte GC868 Gas Clamp On Ultrasonic Flowmeter folgende Normen erf llen EN 61326 1998 Class A Annex A Continuous Unmonitored Operation EN 61010 1 1993 A2 1995 Overvoltage Category II Pollutio...

Страница 90: ...one or more countries All third party product and company names are trademarks of their respective holders 910 226UF1 Customer Support Centers U S A 1100 Technology Park Drive Billerica MA 01821 4111...

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