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GE DigitalFlow GF868 Programming Manual
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GE DigitalFlow GF868 Programming Manual

GE DigitalFlow GF868 Programming Manual

Ultrasonic flowmeter for flare gas
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GE
Measurement & Control
Gas Analysis
DigitalFlow™ GF868
Ultrasonic Flowmeter for Flare Gas
Programming Manual (2-Channel)
910-194P2 Rev. F
February 2015

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Summary of Contents for GE DigitalFlow GF868

  • Page 1 Measurement & Control Gas Analysis DigitalFlow™ GF868 Ultrasonic Flowmeter for Flare Gas Programming Manual (2-Channel) 910-194P2 Rev. F February 2015...
  • Page 3 DigitalFlow™ GF868 Ultrasonic Flowmeter for Flare Gas Programming Manual (2-Channel) 910-194P2 Rev. F February 2015 www.ge-mcs.com ©2015 General Electric Company. All rights reserved. Technical content subject to change without notice.
  • Page 4 [no content intended for this page]...
  • Page 5 Preface Information Paragraphs Note: These paragraphs provide information that provides a deeper understanding of the situation, but is not essential to the proper completion of the instructions. IMPORTANT: These paragraphs provide information emphasizing instructions which are essential to proper setup of the equipment.
  • Page 6 Environmental Compliance Waste Electrical and Electronic Equipment (WEEE) Directive GE Measurement & Control is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE) take-back initiative, directive 2012/19/EU. The equipment that you bought has required the extraction and use of natural resources for its production. It may contain hazardous substances that could impact health and the environment.

  • Page 7: Table Of Contents

    Contents Chapter 1. Programming Site Data 1.1 Introduction ................... .1 1.2 Using the Keypad.
  • Page 8 Contents Chapter 3. Logging Data 3.1 Introduction...................51 3.2 Creating a Standard Log .
  • Page 9 Contents Chapter 6. Serial Communications 6.1 Introduction ..................75 6.2 Wiring the RS232 Interface.
  • Page 10 Contents [no content intended for this page] viii DigitalFlow™ GF868 Programming Manual (2-Channel)

  • Page 11: Chapter 1. Programming Site Data

    Chapter 1. Programming Site Data Chapter 1. Programming Site Data 1.1 Introduction The 2-Channel Model GF868 flowmeter cannot provide accurate flow rate measurements for either channel until the instrument has been properly installed, the channel has been activated, and the basic system and pipe parameters have been programmed into the meter.

  • Page 12: Using The Keypad

    Chapter 1. Programming Site Data 1.2 Using the Keypad The Model GF868 keypad contains 39 keys, which are labeled with their primary (unshifted) functions. In addition, [SHIFT] pressing the red key will access the secondary functions assigned to most of the keys. The complete keypad is illustrated in Figure 1 and a detailed description of both the unshifted and shifted functions for each of the 39 keys is listed in Table 1 on page 3.
  • Page 13 Chapter 1. Programming Site Data Table 1: Model GF868 Key Functions Unshifted Function Shifted Function Software Function Keys - press to select the functions None displayed directly above them in the option bar. These keys apply only to the left pane of the display screen. Software Function Keys - press to select the functions None displayed directly above them in the option bar.
  • Page 14 Chapter 1. Programming Site Data Table 1: Model GF868 Key Functions (cont.) Unshifted Function Shifted Function Log Key - use to set up logs. See page 39 for details. Use to enter the letter X. Print Key - use to print live measurements, log files and Use to enter the letter R.
  • Page 15 Chapter 1. Programming Site Data Table 1: Model GF868 Key Functions (cont.) Unshifted Function Shifted Function Five Key - use to enter the number 5. Use to enter the letter M. Six Key - use to enter the number 6. Use to enter the letter N.

  • Page 16: Obtaining On-Line Help

    Chapter 1. Programming Site Data 1.3 Obtaining On-line Help A context-sensitive, on-line help system is programmed into every Model GF868 flowmeter. On-line help, which [HELP] displays additional information related to the current task, may be accessed at any time by pressing the key on the keypad.

  • Page 17: Using The Console Control Keys

    Chapter 1. Programming Site Data 1.4 Using the Console Control Keys The Model GF868 has four console control keys, which are located on the left side of the keypad. Use these keys, which are described and pictured in Table 1 on page 3, in accordance with the following instructions: 1.4.1 Audio Alarm Volume Use the top console control key to adjust the audio alarm volume.

  • Page 18: The User Program

    Chapter 1. Programming Site Data 1.5 The User Program Use the keypad, as described in Chapter 3, Operation, of the Startup Guide to navigate through the User Program. The menu maps in Appendix A may be followed in sequence, or the [ and [ keys may be used to scroll through the prompt screens.

  • Page 19: Entering Channel Data

    Chapter 1. Programming Site Data 1.6 Entering Channel Data [F1]=CH1 [F2]=CH2 After selecting ) at the initial programming screen, the following screen appears:  [F1]-[F4] Press the [ and [ keys and a function key to select the desired Chan 1 PROGR Start [EXIT]...

  • Page 20: Entering System Data For A Channel

    Chapter 1. Programming Site Data 1.6.1a Procedure Options Channel PROGRAM After completing the above steps, the meter returns to the prompt. Continue as follows: • To continue programming the meter, refer to the menu maps in Appendix A and navigate to the desired menu. Then, proceed to the appropriate section of this manual for instructions.
  • Page 21 Chapter 1. Programming Site Data 1.6.2 Entering System Data for a Channel (cont.) [F1]-[F4] 6. Use the keys to select the Volumetric Time for the data display. [F1]-[F4] 7. Use the keys to select the Vol Decimal Digits (the number of digits to the right of the decimal point) in the data display.

  • Page 22: Entering Pipe Data

    Chapter 1. Programming Site Data 1.6.3 Entering Pipe Data PIPE To program the transducer and pipe parameters via the submenu, complete the following steps and refer to Figure 11 on page 87. Channel PROGRAM [F1] or [F2] User PROGRAM 1. To enter the menu, press (depending on the desired channel) at the prompt.
  • Page 23 Chapter 1. Programming Site Data 1.6.3 Entering Pipe Data (cont.) 1.6.3c Pipe Wall [ENT] Enter the known thickness of the Pipe Wall, in the same units used for the pipe OD. Press . (The meter will only accept values from 0 to 4 in.) If the pipe wall thickness is not known and cannot be conveniently measured, look up the value in a table of standard pipe size data or use the Model GF868’s on-line Help Menu.

  • Page 24: Setting Up Inputs/Outputs

    Chapter 1. Programming Site Data 1.6.4 Setting Up Inputs/Outputs The following specific tasks may be performed via the submenu: • Enter a zero cutoff value to eliminate low flow reading fluctuations • Set up any optional temperature and/or pressure inputs Refer to the menu map in Figure 12 on page 88.
  • Page 25 Chapter 1. Programming Site Data 1.6.4 Setting Up Inputs/Outputs (cont.) 1.6.4c Pressure Input [F1] [Fx] 6. At the Pressure Input prompt, press to enter a constant pressure value or press to select the option card in Slot X that will supply the live pressure input. Note: Each slot that contains an option card with an analog input assigned to PRESR will appear on the option bar.

  • Page 26: Entering Setup Data

    Chapter 1. Programming Site Data 1.6.5 Entering Setup Data SETUP The signal limits and response times for the Model GF868 are specified via the submenu. It includes three submenus: • SIGNL - set the parameters related to the transducer signal •...
  • Page 27 Chapter 1. Programming Site Data 1.6.5a Setting Signal Limits (cont.) [ENT] [ENT] 5. Press to accept the current Velocity High Limit value or enter a new value and press The default value for this parameter is 300.0 ft/sec (85 m/sec) and values from –500 to 500 ft/sec (–150 to 150 m/sec) E3: VELOCITY RANGE are acceptable.
  • Page 28 Chapter 1. Programming Site Data 1.6.5 Entering Setup Data (cont.) 1.6.5a Setting Signal Limits (cont.) [ENT] [ENT] 11. Press to accept the current % of Peak value or enter a new value and press The percentage of peak used to calculate the transit times and Delta T is specified at this prompt. The default value for this parameter is 50% and values from 1 to 100% are acceptable.
  • Page 29 Chapter 1. Programming Site Data 1.6.5a Setting Signal Limits (cont.) [ENT] [ENT] 18. Press to accept the current R Window (Cycles) value or enter a new value and press Normally, the Model GF868 calculates the size of the receive window based on pipe size and fluid sound speed. However, for special diagnostic purposes, it may sometimes be necessary to reset the window size.
  • Page 30 Chapter 1. Programming Site Data 1.6.5 Entering Setup Data (cont.) 1.6.5b Setting Response Time Use this option to specify the number of readings that occur before the meter will respond to a step change in flow rate. In general, the smaller the number of readings, the less steady the display will appear. to enter the AVERAGE submenu.
  • Page 31 Chapter 1. Programming Site Data Editing K Factors 1. Press [F2] = MULTK to enter the MultiK option. [F1] = NO [F2] = YES 2. Press to disable or to enable Multiple K-factors. If you press NO, the GF868 returns to the Advanced Features prompt. •...

  • Page 32: Entering Global Data

    Chapter 1. Programming Site Data 1.7 Entering Global Data GLOBL menu is used to enter information that is not specific to one of the individual channels. Information programmed via this menu is used to compute parameters such as the sum, difference or average of the channel 1 and GLOBL channel 2 signals.

  • Page 33: Setting The Clock

    Chapter 1. Programming Site Data 1.7.1 Setting the Clock CLOCK CLOCK Use the submenu to enter the current date and time. Refer to Figure 13 on page 89. To program the [F1] Global PROGRAM submenu, press at the prompt and complete the following steps: 1.7.1a Setting the Date 1.

  • Page 34: Entering Global System Data

    Chapter 1. Programming Site Data 1.7.2 Entering Global System Data [F2] Global PROGRAM Refer to Figure 13 on page 89.To program this submenu, press at the prompt, and complete the following steps: = ENG to display parameters and measurements in English units or [F1] 1.
  • Page 35 Chapter 1. Programming Site Data 1.7.2a Entering Volumetric Data [F1]-[F4] 4. Use the and [ keys to select the desired Volumetric Units for the flow rate display. (See Figure 13 on page 89 for all available volumetric and totalizer units.) [F1]-[F4] 5.

  • Page 36: Setting Up Global Inputs/Outputs

    Chapter 1. Programming Site Data 1.7.3 Setting Up Global Inputs/Outputs The I/O submenu allows users to program error handling responses, as well as both built-in and optional analog outputs [F3] Global PROGRAM and cards. To program this submenu, press at the prompt, and refer to Figure 14 on page 90.
  • Page 37 Chapter 1. Programming Site Data 1.7.3b Setting Up Option Cards Slot 0 The Model GF868 has two built-in analog outputs, which are assigned to . Also, a variety of option cards may be installed in the six expansion slots. See Chapter 1, Installation, of the Startup Guide for a complete description of the available option cards.
  • Page 38 Chapter 1. Programming Site Data 1.7.3 Setting Up Global Inputs/Outputs (cont.) Alarms [F1]-[F3] 1. Use the keys to set up alarm relays A, B, or C, respectively. Note: The set up of alarm A is used as an example. Identical procedures would be used to set up the other alarms. = OFF to disable Alarm A and return to the previous prompt, or press [F1] [F2] = HIGH, [F3] = LOW or [F4]...
  • Page 39 Chapter 1. Programming Site Data Totalizer Output 5. The TTLZR output, [F3], issues one pulse per selected volume of flow. The meter produces a pulse each time the programmed amount of flow passes through the pipe. Complete the steps below to program the totalizer output. = +TOTL to totalize the forward flow, to totalize the reverse flow, [F3] = +MASS (if [F1]...
  • Page 40 Chapter 1. Programming Site Data 1.7.3 Setting Up Global Inputs/Outputs (cont.) Option Card RTD Inputs Option cards with RTD inputs have a temperature range of –100° to 350°C. Complete the following steps to set up the two RTD inputs of an option card installed in Slot x: [F1] [F2] 1.

  • Page 41: Setting Up Communications

    Note: To set Fieldbus communications parameters, see Appendix D, Foundation Fieldbus Communications. COMM Use the submenu to set the RS232, MODBUS, Ethernet and MODBUS/TCP communications port parameters and to enter a network identification number. A network identification number is required to use the GE Instrument COMM [F4] Global PROGRAM Data Manager or PanaView software.

  • Page 42: Modbus Register Map

    Chapter 1. Programming Site Data 1.7.4c Procedure Options Global PROGRAM After completing the above steps, the meter returns to the prompt. Continue as follows: • To continue programming the meter, refer to the menu maps in Appendix A and navigate to the desired menu. Then, proceed to the appropriate section of this manual for instructions.
  • Page 43 Chapter 1. Programming Site Data Table 8: MODBUS Registers for a 2-Channel GF868 MODBUS Scaling Reg # Hex Addr Description (decimal places) Size in Bytes 2 (16 bit signed) 1” Clear Ch1 Totalizers” 2 (16 bit signed) 1“ Clear Ch2 Totalizers” Ch1 Velocity 4 (2 16-bit int) Ch1 Act Volumetric...
  • Page 44 Chapter 1. Programming Site Data Table 8: MODBUS Registers for a 2-Channel GF868 (cont.) MODBUS Scaling Reg # Hex Addr Description (decimal places) Size in Bytes Ch2 Sig Strength Upstream 4 (2 16-bit int) Ch2 Sig Strength Downstream 4 (2 16-bit int) Ch2 Temperature 4 (2 16-bit int) Ch2 Pressure...

  • Page 45: Activating Security

    Chapter 1. Programming Site Data 1.7.5 Modbus Register Map (cont.) Notes: 1. Clear Totalizers: flag from the 8051 to clear either the Channel 1 or Channel 2 totalizers. 2. MODBUS baud rate: 5 = 2400, 6 = 4800, 7 = 9600, 8=19200 3.
  • Page 46 Chapter 1. Programming Site Data 1.7.6 Activating Security (cont.) [F1] = UNlck Global PROGRAM 1. At the Lock Out prompt, press to unlock the system and return to the prompt, or press [F2] = LOCK to lock the system. Note: If the system was unlocked at the above prompt, the following three prompts do not appear. [ENT] 2.

  • Page 47: Saving Site Files

    Chapter 1. Programming Site Data 1.8 Saving Site Files The currently programmed site data may be stored in the Model GF868’s non-volatile memory by saving it as a site file. Up to ten site file names, consisting of up to five characters each, may be stored at any given time. To enter the SAVE [F4] menu, press...

  • Page 48: Recalling Site Files

    Chapter 1. Programming Site Data 1.9 Recalling Site Files Any site file currently stored in the Model GF868’s non-volatile memory may be recalled at any time. Up to ten site file RECLL names, consisting of up to five characters each, may be stored at any given time. To enter the menu, press [...

  • Page 49: Chapter 2. Displaying Data

    Chapter 2. Displaying Data Chapter 2. Displaying Data 2.1 Introduction This chapter explains how to display measurement data in various formats. Each of the two display screen panes may be programmed independently. Note: The instructions in this chapter assume that the left display pane is active. If the right display pane is active, [F1]-[F4] [F5]-[F8] simply change all...

  • Page 50: The Big Submenu

    Chapter 2. Displaying Data 2.2 The BIG Submenu format, which is the Model GF868’s default power up format, displays one measurement in large print. To select the format and the measurement to display in this format, follow the instructions in this section. Upon power up, a standard measurement mode display (similar to the one shown below) appears.

  • Page 51: The Dual Submenu

    Chapter 2. Displaying Data 2.3 The DUAL Submenu DUAL DUAL format displays two measurements simultaneously in normal print. To select the format and the measurements to display in this format, follow the instructions in this section. Upon power up, a standard measurement mode display (similar to the one shown below) appears in format.

  • Page 52: Using The Graph Format

    Chapter 2. Displaying Data 2.4.2 Using the GRAPH Format GRAPH While viewing data in the format, the function keys are programmed to permit a variety of actions. These options are described in detail below.  [ and  [F1]-[F4] 1.23 Ft/s 10:16 Use the keys to select the desired option.

  • Page 53: The Log Submenu

    Chapter 2. Displaying Data 2.5 The LOG Submenu submenu permits the display of the data in a log file either graphically or numerically. Although the Model GF868 can display all of the data in a log file, screen size limitations prevent the simultaneous display of the complete log file.

  • Page 54: Numeric Format

    Chapter 2. Displaying Data 2.5.2 Numeric Format The Model GF868 can log up to three parameters simultaneously. Each set of data values is called a record, and up to 120 consecutive records can be stored in a page. A log file can consist of up to 120 pages. The numeric log display, which shows one record at a time, includes the following components: •...

  • Page 55: Graphical Format

    Chapter 2. Displaying Data 2.5.3 Graphical Format PLOT FORMAT After choosing at the prompt, the programming sequence continues as follows: 6. Enter a maximum value for the Y-axis (vertical) scale that is larger than the maximum expected reading. Press [ENT] [F1] [F2] 7.

  • Page 56: Displaying The Transducer Signal

    Chapter 2. Displaying Data 2.5.3 Graphical Format (cont.) (VEL) In the typical graphical display shown, the first logged parameter is shown to the left of the y-axis and there is a message line below the graph that initially indicates the starting date and time of the current page. Notice that most of the locator bar has been replaced by a status line in standard video that shows the value, units and time of the record at the current cursor location.
  • Page 57 Chapter 2. Displaying Data Displaying the Transducer Signal (cont.) Note: If the Skan ACTIV Signal to Display burst technique was selected in the menu, the prompt does not appear and the Measure type signals are not available. To access these signals, the burst technique must be selected.
  • Page 58 Chapter 2. Displaying Data Displaying the Transducer Signal (cont.) In addition to the functions available on the option bar, some of the numeric keys are used to specify which transducer signal is displayed and to scale the resulting graph. Table 15 lists these functions. Table 15: Numeric Key Functions Function Scroll down the transducer signal list...

  • Page 59: Setting The Lcd Backlight

    Chapter 2. Displaying Data 2.7 Setting the LCD Backlight BACKL Use the submenu to specify the number of minutes the LCD display backlight remains on before it is [SCREEN] automatically turned off. Press the appropriate side of the key to activate the desired pane of the display screen, then proceed as follows: Note: For this discussion, it is assumed that the left pane of the display screen is active.
  • Page 60 Chapter 2. Displaying Data [no content intended for this page] DigitalFlow™ GF868 Programming Manual (2-Channel)

  • Page 61: Chapter 3. Logging Data

    Chapter 3. Logging Data Chapter 3. Logging Data 3.1 Introduction This chapter explains how to use the Model GF868’s data logging capability. The menu, which is accessed by [LOG] pressing the key on the keypad, is divided into four submenus: •...

  • Page 62: Creating A Standard Log

    Chapter 3. Logging Data 3.2 Creating a Standard Log Use the submenu to create a new standard log and to select the parameters to log, the log start time and date, the log end time and date, and the time increment. Also, any log file already stored in memory may be inspected and/or changed.

  • Page 63: Log Type

    Chapter 3. Logging Data Creating a Standard Log (cont.) DIAG Refer to Chapter 3, Diagnostics, of the Service Manual for a discussion of the many parameters accessible via the option. Note: The units assigned to the parameters in Table 16 on page 52 are those selected in the User Program ( SYSTM submenu).

  • Page 64: Start Date Prompt

    Chapter 3. Logging Data 3.2.3 START DATE Prompt [F1] [F2] 11. Press to accept the displayed Start Date or press to enter a different start date. To start logging today, press [F3] • TODAY was selected, proceed to step 12 for a non-circular log or to step 13 for a circular log. •...

  • Page 65: Duration Prompt

    Chapter 3. Logging Data 3.2.6 DURATION Prompt If a circular log was specified, the programming sequence continues here after the log start time and/or start date is entered. [F1] [F2] 14. Press and enter a log duration in hours or press and enter a log duration in days.

  • Page 66: Checking The Memory

    Chapter 3. Logging Data 3.3 Checking the Memory Use the submenu to verify that the available log memory is sufficient for the desired log. If the expected amount of logged data will exceed the remaining memory capacity, the Model GF868 suggests that some old logs be cleared to make room for the new log.

  • Page 67: Stopping A Log

    Chapter 3. Logging Data 3.4 Stopping a Log STOP [SCREEN] Use the submenu to terminate a logging process that is currently active. Press the appropriate side of the key to activate the desired pane of the display screen, and complete the following steps: [LOG] 1.

  • Page 68: Creating An Error Log

    Chapter 3. Logging Data 3.5 Creating an ERROR Log ERROR Use the submenu to create a new error log and to select the logging parameters. An error log updates every 5 seconds (when the display updates), but only if a new error condition occurs. Error logs have a fixed length of 2 pages and contain sixty records per page.

  • Page 69: Log Type

    Chapter 3. Logging Data Creating an ERROR Log (cont.) In addition, refer to Chapter 3, Diagnostics, of the Service Manual for a discussion of the many parameters accessible DIAG via the option. Note: The units assigned to the parameters in Table 17 on page 58 are those selected in the User Program ( SYSTM submenu).

  • Page 70: Start Date Prompt

    Chapter 3. Logging Data Creating an ERROR Log (cont.) 3.5.1 START DATE Prompt [F1] [F2] 11. Press to accept the displayed Start Date or press to enter a different start date. To start logging today, press [F3] • TODAY was selected, you have finished setting up the error log. Proceed to Procedure Options below. •...

  • Page 71: Chapter 4. Printing Data

    Chapter 4. Printing Data Chapter 4. Printing Data 4.1 Introduction The Model GF868 flowmeter has the capability to print any of the data stored in its memory via the built-in RS232 communications port. In order to use the function, the RS232 port must be connected to a printer with a serial port input.

  • Page 72: Print Live Data

    Chapter 4. Printing Data 4.2 Print Live Data DATA Use the submenu to print live measurement data, as it is collected. The data may be printed in either numeric or graphical format, with a user specified time increment. IMPORTANT: Make sure that a printer has been properly set up before proceeding with this section. To print live measurement data, refer to Figure 16 on page 92 of Appendix A, Menu Maps, and complete the following steps: [PRNT]...

  • Page 73: Graphical Format

    Chapter 4. Printing Data 4.2.1 Numeric Format (cont.) [F1]-[F4] 5. Use the [, [ and keys to select the second parameter to be printed. [F1]-[F4] 6. Use the [, [ and keys to select the third parameter to be printed. [F1]-[F4] 7.
  • Page 74 Chapter 4. Printing Data 4.2.2 Graphical Format (cont.) Table 19: Measurement Parameter Options Option Bar Choice Description Flow Velocity [F1] Volumetric Flow [F2] VOLUM Forward Totalized Volume Flow [F3] +TOTL Reverse Totalized Volume Flow [F4] -TOTL Mass Flow + [F1] MDOT [...

  • Page 75: Printing Logs

    Chapter 4. Printing Data 4.3 Printing Logs Use the submenu to print logged measurement data, from a log file in the meter’s memory. The data may be printed in either numeric or graphical format, with a user specified time increment. IMPORTANT: Make sure that a printer has been properly set up before proceeding with this section.

  • Page 76: Graphical Format

    Chapter 4. Printing Data 4.3.2 Graphical Format After the graphical format (and starting page and number of pages, if applicable) is chosen, complete the following additional steps: [ENT] 7. Enter the desired maximum value for the Y (vertical) axis and press Note: Enter a Y AXIS MAX value that is larger than the largest logged measurement value.

  • Page 77: Print Site File

    Chapter 4. Printing Data 4.4 Print Site File PROG Use the submenu to print the data in a site file that was set up and saved as described in Chapter 1, Programming Site Data. To print a site file, refer to Figure 16 on page 92 of Appendix A, Menu Maps and complete the following steps: IMPORTANT: Make sure that a printer has been properly set up before proceeding with this section.

  • Page 78: Stop Printing

    Chapter 4. Printing Data 4.5 Stop Printing STOP Use the submenu to terminate the printing of live, logged or site data. To stop any active printing activity, see Figure 16 on page 92 and complete the following steps: IMPORTANT: Make sure that a printer has been properly set up before proceeding with this section. [PRNT] 1.

  • Page 79: Printing Signal Array Data

    Chapter 4. Printing Data 4.7 Printing Signal Array Data SGNLS Use the submenu to print signal array data, to help diagnose certain problems. To print the signal data, see Figure 16 on page 92 and complete the following steps: IMPORTANT: Make sure that a printer has been properly set up before proceeding with this section.

  • Page 80: Printing Rtd Data

    Chapter 4. Printing Data Printing Signal Array Data (cont.) SIGNL The data printed via the submenu consists of 1024 lines, each of which lists the following three values: • Index - this is the printout line number, which locates the data point within the complete body of data. •...

  • Page 81: Chapter 5. Clearing Data

    Chapter 5. Clearing Data Chapter 5. Clearing Data 5.1 Introduction This chapter explains how to purge the Model GF868’s memory of various measurement totals and/or files. The Clear [CLR] Menu, which is accessed by pressing the key on the keypad, is divided into three submenus: •...

  • Page 82: Reset Totals

    Chapter 5. Clearing Data 5.2 Reset Totals TOTAL submenu permits the user to reset volumetric totals to zero and to reset the stopwatch totalizer. Press the [SCREEN] appropriate side of the key to activate the desired pane of the display screen, and complete the following steps: [CLR] 1.

  • Page 83: Deleting Site Files

    Chapter 5. Clearing Data 5.3 Deleting Site Files SITE [SCREEN] Use the submenu to clear site files from the GF868’s memory. Use the key to activate the desired display pane, and complete the following steps: [CLR] 1. To access the Clear Menu, press the key.

  • Page 84: Deleting Log Files

    Chapter 5. Clearing Data 5.4 Deleting Log Files [SCREEN] Use the submenu to clear log files from the Model GF868’s memory. Press the appropriate side of the to activate the desired pane of the data display screen, and complete the following steps: [CLR] 1.

  • Page 85: Chapter 6. Serial Communications

    The first step is to connect the built-in RS232 port in the GF868 to one of the serial ports (COM1 or COM2) on the personal computer. Table 21 lists the standard cables available from the factory for this purpose. Table 21: GE Serial Cables Part Number...

  • Page 86: Checking The Gf868 Baud Rate

    Chapter 6. Serial Communications 6.3 Checking the GF868 Baud Rate For successful serial communications, the GF868 and the personal computer must be set up to send/receive data at the same speed. To check the baud rate setting of the GF868, proceed as follows: [PROG] Access the User Program, by pressing the key on the keypad.

  • Page 87: Setting Up The Terminal Software

    Chapter 6. Serial Communications 6.4 Setting Up the Terminal Software Specific instructions are given in this manual for communicating with personal computers running under either the Windows 3.X or Windows 9X/NT operating systems. Proceed to the appropriate section for detailed set up procedures. Note: For computers operating under other operating systems, contact the factory for assistance or consult the operating system manual supplied with the computer.

  • Page 88: Windows 9X/Nt Systems

    Chapter 6. Serial Communications 6.4.2 Windows 9X/NT Systems Windows 9X/NT systems use a program called Hyperterminal to access the serial ports. To set up serial communications with a personal computer running under Windows 95, Windows 98 or Windows NT, make sure the GF868 is powered on and complete the following steps: PROGRAMS>ACCESSORIES>HYPERTERMINAL>HYPERTERMINAL 1.

  • Page 89: The Optional Rs485 Serial Interface

    6.5 The Optional RS485 Serial Interface Although the standard RS232 serial interface included with the Model GF868 is adequate for most applications, GE offers an optional RS485 serial interface upgrade for special situations. The Model GF868 is easily modified to provide RS485 communications, and this section describes the wiring and use of the special RS232 to RS485 converter.

  • Page 90: Point-To-Point Wiring

    Chapter 6. Serial Communications 6.5.2 Point-To-Point Wiring Standard factory wiring of the RS485 serial interface is configured for point-to-point wiring. That is, a single Model GF868 may be wired directly to a single personal computer. To connect the RS485 serial interface, refer to Figure 9 on page 79 and complete the following steps: Note: For compliance with the European Union’s Low Voltage Directive, a transparent plastic shroud protects the electrical connections.
  • Page 91 Chapter 6. Serial Communications 6.5.3a Reconfiguring a Serial Interface Converter To reconfigure a serial interface converter for multi-point wiring, complete the following steps: 1. Disconnect the main power to the electronics console and open the cover. WARNING! Dangerous voltages exist within the electronics console. Do not perform any wiring operations until the main power to the unit has been disconnected.
  • Page 92 Chapter 6. Serial Communications 6.5.3 Multi-Point Wiring (cont.) 6.5.3a Reconfiguring a Serial Interface Converter (cont.) Table 23: Switch Assembly Settings Position # Point-To-Point Multi-Point 7. Reassemble the serial interface converter and secure it to the mounting bracket with the two mounting screws. 8.

  • Page 93: Setting Up An Ethernet Connection

    Chapter 6. Serial Communications 6.6 Setting Up an Ethernet Connection A modified GF868 can use the Ethernet interface to communicate with 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 LAN according to the manufacturer’s instructions.

  • Page 94: Setting Up A Modbus/Tcp Connection

    Chapter 6. Serial Communications 6.7 Setting Up a MODBUS/TCP Connection A modified GF868 can use the MODBUS/TCP interface to communicate with 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 LAN according to the manufacturer’s instructions.

  • Page 95: Appendix A. Menu Maps

    Appendix A. Menu Maps Appendix A. Menu Maps DigitalFlow™ GF868 Programming Manual (2-Channel)
  • Page 96 [no content intended for this page] DigitalFlow™ GF868 Programming Manual (2-Channel)

  • Page 97: Appendix A. Menu Maps

    Appendix A. Menu Maps PROG PROGRAM NOTE: Plain text represents prompt area messages and SAVE RECLL boxed text represents option bar choices. Fx represent function keys to select option bar choices. Channel PROGRAM ACTIV SYSTM PIPE SETUP CHANNEL LABEL See Figure A-2 See Figure A-2 Channel Status TRANSDUCER NUMBER...
  • Page 98 PROG PROGRAM GLOBL SAVE RECLL Channel PROGRAM NOTE: Plain text represents prompt area messages and boxed text represents option bar choices. ACTIV SYSTM PIPE SETUP Fx represent function keys to select option bar choices. See Figure A-1 See Figure A-1 See Figure A-1 SET UP ZERO CUTOFF...
  • Page 99 Appendix A. Menu Maps PROG PROGRAM NOTE: Plain text represents prompt area messages and boxed text represents option bar choices. Fx represent function keys to select option bar choices. SAVE RECLL Global PROGRAM CLOCK SYSTM COMM SECUR See Figure A-4 SYSTEM UNITS BAUD RATE SITE NAME...

  • Page 100: Appendix A. Menu Maps

    Appendix A. Menu Maps PROG PROGRAM GLOBL SAVE RECLL NOTE: Plain text represents prompt area messages and Global PROGRAM boxed text represents option bar choices. Fx represent function keys to select option bar choices. CLOCK SYSTM COMM SECUR Global I/O ERROR OPTN ERROR HANDLING...

  • Page 101: Appendix A. Menu Maps

    Appendix A. Menu Maps DISP DISPLAY FORMAT DUAL GRAPH SIGNL BACKL SLEEP NAME LCD SLEEP MODE LOG1 LOG2 LOG3 LOG4 Backlight timeout DISPLAY Site Channel FORMAT PLOT GRAPH VARIABLE Y AXIS MAX (*available only if Y RANGE Signal to Display VOLUM MDOT Mass Flow (static)? = YES)

  • Page 102: Appendix A. Menu Maps

    Appendix A. Menu Maps PRNT PRINT DATA PROG STOP PRNTR SGNLS RTDs FORMAT FORMAT PLOT PLOT 1st value printed NAME STOP PRINTING SIGNAL ARRAY LOG1 LOG2 LOG3 LOG4 SIGNL CROSS BOTH 1st value printed (log>1 page) (log=1 page) 1st page DUMP VOLUM +TOTL...

  • Page 103: Appendix A. Menu Maps

    Appendix A. Menu Maps LOGGING CLEAR STOP ERROR TOTAL SITE X/120 Pages FREE NAME Total to Clear SITE NAME NAME Y Pages PENDING LOG1 LOG2 LOG3 LOG4 BOTH SITE1 SITE2 SITE3 SITE4 LOG1 LOG2 LOG3 LOG4 Stop Logging ? CLEAR SITE NAME CLEAR NAME NAME LOG1...

  • Page 104: Appendix A. Menu Maps

    Appendix A. Menu Maps DigitalFlow™ GF868 Programming Manual (2-Channel)

  • Page 105: Appendix B. Data Records

    Appendix B. Data Records Appendix B. Data Records B.1 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 24. Table 24: Option Cards Installed Slot # Type of Option Card...

  • Page 106: Initial Setup Data

    Appendix B. Data Records B.2 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 25. Table 25: Initial Setup Data General Information Model # Reference...
  • Page 107 Appendix B. Data Records Table 25: Initial Setup Data (cont.) Pipe/Transducer Parameters (CH1/CH2-PIPE) Channel 1 Channel 2 Trans. # Trans. # Spec. Trans. Hz Spec. Trans. Hz Spec. Trans. Tw Spec. Trans. Tw Pipe O.D. Pipe O.D. Pipe Wall Pipe Wall Path Length (P) Path Length (P) Axial Length (L)
  • Page 108 [no content intended for this page] DigitalFlow™ GF868 Programming Manual (2-Channel)

  • Page 109: Appendix C. Programming With Panaview

    Appendix C. Programming with PanaView C.1 Introduction The PanaView™ graphical user interface offers interactive communications between Windows-based PCs and GE instruments compatible with the company’s IDM protocol, such as the GF868 ultrasonic gas flowmeter. PanaView is compatible with 32-bit Windows operating systems such as Windows 98SE, NT 4.0 (with Service Pack 6), 2000, XP and ME.

  • Page 110: Setting Up The Communications Port

    Appendix C. Programming with PanaView C.3 Setting Up the Communications Port Use the steps below to establish communications with the GF868. 1. Open the “New Meter Browser” window and expand the network tree. Then, highlight the My Computer(Name) branch by clicking on it. 2.
  • Page 111 Appendix C. Programming with PanaView Setting Up the Communications Port (cont.) 4. Click on the “Communications Port” option to select it. The Setup Communications screen appears similar to Figure 19. Figure 19: Setup Communications Screen 5. Open the Protocol menu (the first of the drop-down menus) and click on IDM. 6.

  • Page 112: Setting Up Ethernet Communications

    Appendix C. Programming with PanaView C.3.1 Setting up Ethernet Communications If you have selected TCP/IP in step 6 on the previous page, the Setup Communications window appears similar to Figure 20. Figure 20: Setup Communications for TCP/IP 1. Type in the desired Name and Timeout (in milliseconds). Device Discovery 2.

  • Page 113: Adding The Gf868

    Appendix C. Programming with PanaView C.4 Adding the GF868 To add the GF868 on the IDM-configured communications port, complete the following steps: 1. Highlight the communication port to which the meter will be added by clicking on it, and then open the “Edit” menu on the menu bar (if the communication port is not highlighted first, the “New Meter”...
  • Page 114 Appendix C. Programming with PanaView Adding the GF868 (cont.) IMPORTANT: The Network ID number must match the Network ID programmed in the meter’s Communications menu. If the initialization is successful, the Meter Browser shows a listing similar to Figure 23. Figure 23: Updated Network Tree Note: The model number and version that appear will vary with your particular meter and software version.

  • Page 115: Editing Meter Properties

    Appendix C. Programming with PanaView C.5 Editing Meter Properties Through PanaView, you can edit the properties of your GF868. You can: • Set the meter clock, or synchronize it with the PC clock • Read, plot and save transducer signals •...
  • Page 116 Appendix C. Programming with PanaView Editing Meter Properties (cont.) The window appears similar to Figure 26. To perform a specific task, refer to the appropriate section on the following pages. • Setting the Meter Clock (page 107) • Reading Transducer Signals (page 108) •...

  • Page 117: Setting The Meter Clock

    Appendix C. Programming with PanaView C.5.1 Setting the Meter Clock The meter’s Time may be reset in three different ways: • manually enter the time and date in the text box, or • [Sync to PC] click on the option button to have PanaView set the time and date to the current PC setting, or •...

  • Page 118: Reading Transducer Signals

    Appendix C. Programming with PanaView C.5.2 Reading Transducer Signals To read a Signal from the meter: 1. Click on the Read Signals button. (If the meter is a multi-channel instrument, open the Channel drop-down menu and click on the desired channel.) After a moment, the Properties window appears similar to Figure 28. Figure 28: Active Signal Options in Properties Window 2.

  • Page 119: Plotting Transducer Signals

    Appendix C. Programming with PanaView C.5.3 Plotting Transducer Signals To plot the selected signal, click on Plot. A graphical window opens, as shown in Figure 29. Figure 29: Signal Graph Window C.5.4 Saving Transducer Signals To save the raw signal, click Save. A window opens similar to Figure 30. Enter the desired name, and click Save to save the signal as a text file.

  • Page 120: Handling Site Files

    Appendix C. Programming with PanaView C.5.6 Handling Site Files To access site files, click on the Site Files button in the Properties window. The Site File Operations window (shown in Figure 31) opens. Figure 31: Site File Operations Window C.5.6a Saving an Existing Site to the Meter To save an existing site to the meter: 1.
  • Page 121 Appendix C. Programming with PanaView C.5.6b Saving a New Site to the Meter To save a new site to the meter: 1. Select the radio button for New and click on the Save Site to Meter button. [OK] 2. A window opens similar to Figure 33. Enter the desired name, and click Figure 33: Site Name Entry Window 3.
  • Page 122 Appendix C. Programming with PanaView C.5.6e Saving a Site in Text Form To store the data from a site file as a text file for display or printout: 1. Highlight the site in the left pane. (See Figure 31 on page 110.) 2.

  • Page 123: Changing Meter Settings

    Appendix C. Programming with PanaView C.6 Changing Meter Settings Through PanaView, GF868 users can handle remote programming of the meter. They can: • Program and change a meter’s operating parameters; • Set up, start, and stop logs; • Calibrate and test inputs and outputs; •...
  • Page 124 Appendix C. Programming with PanaView Changing Meter Settings (cont.) 4. From the meter tree, expand the Edit Functions option. The window now appears similar to Figure 36, with a list of available menus. The menus listed are those available on the meter. Figure 36: Meter Tree with Edit Functions Option 5.
  • Page 125 Appendix C. Programming with PanaView Changing Meter Settings (cont.) 6. To enter a particular option: a. Highlight and double-click on the desired option in the left pane. Figure 38 shows the first entry (Transducer Number) in the Pipe parameters option. The title above the center pane lists the current entry, while the center pane displays the available selections for that entry.
  • Page 126 Appendix C. Programming with PanaView Changing Meter Settings (cont.) Figure 39: Site Edit Menu with Current Settings [Exit Page] 7. When you have completed entering parameters in a given option, click to close the option. You can then [Close] double-click on another option, or click to close the window.

  • Page 127: Appendix D. Foundation Fieldbus Communications

    Appendix D. Foundation Fieldbus Communications Appendix D. Foundation Fieldbus Communications D.1 Optional Measurements 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 6 Analog Input (AI) blocks, which can be configured to supply the following measurements on the network (see Table 26).

  • Page 128: Configuration Utility Setup

    D.2 Configuration Utility Setup The following is an example setup using National Instruments Configuration Utility v3.1. Figure 40 shows the Configuration Utility with a flowmeter on the network (GE Flow-XMT). Figure 40: Configuration Utility Setup Example Note: The following procedures assume that the device has been placed in the OOS (out-of-service) mode before executing.
  • Page 129 Appendix D. Foundation Fieldbus Communications Selecting the Desired Measurements (cont.) 4. After the desired measurements have been selected for the PRIMARY and SECONDARY SELECTOR, choose the unit system (UNIT_SELECTOR above the PRIMARY_SELECTOR) that has been programmed in the flowmeter (English or SI).

  • Page 130: Selecting Units For Ai Blocks

    Appendix D. Foundation Fieldbus Communications D.4 Selecting Units for AI Blocks To select the units for the individual AI blocks: 1. Double click on the AI block for which you wish to set the units (ANALOG_INPUT_1 or ANALOG_INPUT_2 in the tree under GEFlow-XMT;...

  • Page 131: Resetting Instrument Totalizers

    Appendix D. Foundation Fieldbus Communications D.5 Resetting Instrument Totalizers To reset the instrument totalizers: 1. Double click on the FLOW transducer block (in the tree under GEFlow-XMT; see Figure 40 on page 118). 2. Select the Others tab and scroll down to the CLEAR_TOTALIZERS listing. 3.

  • Page 132: Function Block Application

    Appendix D. Foundation Fieldbus Communications D.6 Function Block Application Figure 44 is an example setup using the Function Block Application editor. The flowmeter AI blocks, along with the AO and PID of another device on the network, are displayed. We have connected the AI_1 OUT of the flowmeter to the CAS IN of the AO block.

  • Page 133: Appendix E. Foundation Fieldbus Tables

    Appendix E. Foundation Fieldbus Tables Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types GF868, GS868, GM868, XGF868i, XGM868i, and Model XGS868i 1 --General Is the Device registered at the Fieldbus Foundation (Yes/No)
  • Page 134 Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types (cont.) 1.17 Meter Software version (minimum and higher) GF868: GF3S; GM868:GM3Q; GS868: GS3N; GC868: GC4C; XGM868i: Y4DM; XGS868: Y4DS; XGF868i:Y4DF 1.18 Firmware on FF card version 868_GAS_FF_206 1.19...
  • Page 135 Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types (cont.) 5 - User Layer General Function Block Application Manufacturer Fieldbus Inc. Function Blocks (list all type, but not including 6 - AI(e), 1 - PID(e), 2 -TB(c), 1 - RB2(e)
  • Page 136 Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types (cont.) List by Channel, Unit Code, Enumerated description, and Function Block Type (if Channels XD_SCALE and CHANNEL value applicable) Channel 0 Channel 1 Channel 1 - “Primary Value”/”Secondary Value”...
  • Page 137 Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types (cont.) 33026 - thousands of standard cubic meters (changed to 34043) 33037 - millions of actual cubic feet (changed to 34004) 33042 - millions of actual cubic meters...
  • Page 138 Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types (cont.) 1357 - cubic feet per minute 1358 - cubic feet per hour 1359 - cubic feet per day 1497 - cubic kilometer per second...
  • Page 139 Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types (cont.) 34018 - Millions of Standard cubic feet per second 34019 - Millions of Standard cubic meter per 34020 - Millions of Standard cubic meter per...
  • Page 140 Appendix E. Foundation Fieldbus Tables Table 27: GE Fieldbus Device Capability, XGX868 Family of Meter Types (cont.) 34045 - Thousands of Standard cubic meters per hour 34046 - Thousands of Standard cubic meters per minute 34047 - Thousands of Standard cubic meters...
  • Page 141 Index Displaying Data ......40 BIG Format ACTIV ......39 Display Menu .
  • Page 142 Index GRAPH ......51 Logging Data ....42 Screen Display Options .
  • Page 143 Index PIPE RS232 Interface ....... 12 ......76 Submenu Baud Rate .
  • Page 144 Index Signal ....... . 109 Graph ....... . 135 Warranty .
  • Page 145 AUTHORIZATION NUMBER (RAN), and shipping instructions for the return of the instrument to a service center will be provided. 2. If GE Sensing instructs you to send your instrument to a service center, it must be shipped prepaid to the authorized repair station indicated in the shipping instructions.
  • Page 146 Warranty [no content intended for this page] DigitalFlow™ GF868 Programming Manual (2-Channel)
  • Page 147 Cable glands of an approved flameproof design are required for Ex d rated equipment. These must be installed according to the manufacturer’s instructions. Where the cable glands are provided by GE, the manufacturer’s instructions, as supplied to GE, will be included in the documentation.
  • Page 148 Certification & Safety Statements for GE Infrastructure Products Used in Hazardous Locations August 2014 Special Conditions for Safe Use Consult the manufacturer if dimensional information on any flameproof joint is necessary. Follow the manufacturer’s instructions to reduce the potential of an electrostatic charging hazard.
  • Page 149 EC DECLARATION Sensing CONFORMITY DOC-0013, Rev. B GE Sensing 1100 Technology Park Drive Billerica, MA 01821 declare under our sole responsibility that the DigitalFlow™ DF8688 Liquid Ultrasonic Flowmeter DigitalFlow™ GC868 Clamp-On Gas Ultrasonic Flowmeter DigitalFlow™ GF868 Flare Gas Mass Ultrasonic Flowmeter DigitalFlow™...
  • Page 152 Customer Support Centers U.S.A. The Boston Center 1100 Technology Park Drive Billerica, MA 01821 U.S.A. Tel: 800 833 9438 (toll-free) 978 437 1000 E-mail: sensing@ge.com Ireland Sensing House Shannon Free Zone East Shannon, County Clare Ireland Tel: +353 (0)61 470200 E-mail: gesensingsnnservices@ge.com An ISO 9001:2008 Certified Company www.ge-mcs.com/en/about_us/quality.html...

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