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GE DigitalFlow GC868 Programming Manual

Panametrics gas clamp-on ultrasonic flowmeter, 1-channel
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DigitalFlow™ GC868
Panametrics Gas Clamp-On Ultrasonic Flowmeter
Programming Manual (1-Channel)

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Summary of Contents for GE DigitalFlow GC868

  • Page 1 Sensing & Inspection Technologies DigitalFlow™ GC868 Panametrics Gas Clamp-On Ultrasonic Flowmeter Programming Manual (1-Channel)

  • Page 2: April

    Sensing & Inspection Technologies DigitalFlow™ GC868 Panametrics Gas Clamp-On Ultrasonic Flowmeter Programming Manual (1-Channel) 910-226P1F1 April 2008 The DigitalFlow GC868 is a GE Panametrics product. GE Panametrics has joined other GE high-technology businesses under a new name—GE Sensing & Inspection Technologies.
  • Page 3 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.

  • Page 4: Table Of Contents

    April 2008 Table of Contents Chapter 1: Programming Site Data Introduction ................1-1 Using the Keypad .
  • Page 5 April 2008 Table of Contents (cont.) Chapter 1: Programming Site Data (cont.) Setting Up Serial Communications ............1-44 Entering MODBUS Data.
  • Page 6 April 2008 Table of Contents (cont.) Chapter 4: Printing Data Introduction ................4-1 Print Live Data .
  • Page 7 April 2008 Table of Contents (cont.) Appendix C: Programming with PanaView Introduction ................C-1 Wiring the RS232 Interface .
  • Page 8 Chapter 1...
  • Page 9 Programming Site Data Introduction........... . 1-1 Using the Keypad .

  • Page 10: Introduction

    April 2008 Introduction The Model GC868 flowmeter cannot provide accurate flow rate measurements until the instrument has been properly installed and the basic system and pipe parameters have been programmed into the meter. See the Startup Guide for detailed instructions on performing these tasks.

  • Page 11: Using The Keypad

    April 2008 Using the Keypad The Model GC868 keypad contains 39 keys, that are labeled with their primary (unshifted) functions. In addition, pressing the red [SHIFT] key will access the secondary functions assigned to most of the keys. The complete keypad is illustrated in Figure 1-1 below and a detailed description of both the unshifted and shifted functions for each of the 39 keys is listed in Table 1-1 on page 1-3.
  • Page 12 April 2008 Table 1-1: Model GC868 Key Functions Unshifted Function Shifted Function Software Function Keys - press to None select the functions displayed directly above them in the option bar. These keys apply only to the left pane of the display screen.
  • Page 13 April 2008 Table 1-1: Model GC868 Key Functions (Continued) Unshifted Function Shifted Function Display Key - use to display data in a Use to enter the letter O. DISP variety of numeric and graphic format- ting options. See page 2-2 for details. Log Key - use to set up logs.
  • Page 14 April 2008 Table 1-1: Model GC868 Key Functions (Continued) Unshifted Function Shifted Function Two Key - use to enter the number 2. Use to enter the letter T. Three Key - use to enter the number 3. Use to enter the letter U. Four Key - use to enter the number 4.

  • Page 15: Obtaining On-Line Help

    April 2008 Obtaining On-line Help A context-sensitive, on-line help system is programmed into every Model GC868 flowmeter. On-line help, which displays additional information related to the current task, may be accessed at any time [HELP] by pressing the key on the keypad. The help information will be shown on the currently selected pane of the display screen, as shown in Figure 1-2 below.

  • Page 16: Using The Console Control Keys

    April 2008 Using the Console The Model GC868 has four console control keys, which are located Control Keys on the left side of the keypad. Use these keys, which are described and pictured in Table 1-1 on page 1-3, as follows: Audio Alarm Volume Use the top console control key to adjust the audio alarm volume.

  • Page 17: The User Program

    April 2008 The User Program Use the keypad, as described in the previous section, to navigate through the User Program. The menu map may be followed in sequence, or the [↑] and [↓] keys may be used to scroll through the prompt screens.

  • Page 18: Activating The Channel

    April 2008 Activating the Channel ACTIV submenu permits selection of the desired measurement method. While following the programming instructions, refer to Figure A-1 on page A-1 of Appendix A, Menu Maps. ACTIV [F1] User PROGRAM 1. Enter the submenu by pressing at the [F1] BURST...

  • Page 19: Entering System Data

    April 2008 Entering System Data [F2] 1. At the User Program screen, press the function key to SYSTM program the submenu. [ENT] 2. Enter a Site Label of up to 9 characters and press . (While taking measurements, the site label will appear on the locator bar.) [ENT] 3.

  • Page 20: Entering Volumetric Data

    April 2008 Entering Volumetric Data [F1]-[F4] 8. Use the and [→] keys to select the desired Volumetric Units for the flow rate display. The available volumetric and totalizer units are shown in Figure A-1 on page A-1. [F1]-[F4] 9. Use the keys to select the Volumetric Time (units for the volumetric flow rate display).
  • Page 21 April 2008 Procedure Options User After completing the above steps, the meter returns to the PROGRAM 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 the manual for instructions.

  • Page 22: Entering Pipe Data

    • OTHER If you selected in step d, use the numeric keys to enter the Wedge Soundspeed in ft/sec or m/sec supplied by GE and [ENT] press . The meter proceeds to step 5. Wedge Temperature 3. Use the numeric keys to enter the Wedge Temperature supplied by...

  • Page 23: Pipe Material

    (OD) or circumference at the transducer installation site. The data may also be obtained from standard pipe size tables (see the GE document Sound Speeds and Pipe Size Data, #914-004). For a list of the available English and Metric units and their definitions for PIPE OD prompt, refer to Table 1-4 on page 1-15.

  • Page 24: Pipe Wall

    April 2008 Pipe OD (cont.) Table 1-4: Available Pipe OD Units English Metric inch = pipe OD in inches mm = pipe OD in millimeters feet = pipe OD in feet m = pipe OD in meters in/PI = pipe circumference mm/PI = pipe circumference in inches in millimeters...

  • Page 25: Transducer Spacing

    Note: If necessary, you can overwrite the spacing shown at the previous prompt (using the numeric keys) to match the actual physical spacing of the transducers. GE does not recommend overwriting the spacing. If you must, do not change the spacing by more than ±10% from the value shown.

  • Page 26: Setting Up Inputs/Outputs

    April 2008 Setting Up Inputs/ Set up the GC868’s inputs and outputs via the four options in the Outputs submenu. While following the programming instructions, refer to Figure A-2 on page A-2 of Appendix A, Menu Maps. • ERROR - program the meter’s response during an error condition •...

  • Page 27: Setting Up Analog Outputs

    April 2008 Setting Up Analog Outputs The Model GC868 has two built-in analog outputs, which are Slot 0 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 28: Option Card Alarms

    April 2008 Setting Up Analog Outputs Table 1-5: Error Response Options (cont.) Option Display Response HOLD Holds the last “good” reading. Forces the outputs to the low set point. HIGH Forces the outputs to the high set point. OTHER Allows user to enter 4-20 mA error level in mA. [F1] [F4] [EXIT]...

  • Page 29: Setting Up The Totalizer/Frequency Outputs

    April 2008 Setting Up the Totalizer/ [F1]-[F4] 1. Use the [←] and [→] and the keys to select the desired Frequency Outputs slot number. [F1]-[F4] 2. Press to set up outputs A, B, C or D, respectively. [F1] = OFF 3.
  • Page 30 April 2008 Programming a Totalizer TTLZR [F3] 5. The output, , issues one pulse per selected volume of Output 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.

  • Page 31: Setting Up The Analog Inputs

    April 2008 Setting up the Analog [F1]-[F4] 1. Use the [←] and [→] and the keys to select the desired Inputs slot number. [F1] [F2] 2. Press to set up input A or to set up input B. Note: The set up of input A is used as an example in this manual. Identical procedures would be used to set up input B.

  • Page 32: Setting Up Rtd Inputs

    April 2008 Setting up 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]-[F4] 1. Use the [←] and [→] and the keys to select the desired slot number.

  • Page 33: Setting Up Temperature And Pressure Inputs

    April 2008 Setting Up Temperature Note: This option only appears if you have selected “Standard” as and Pressure Inputs SYSTM the equation type in the submenu, as shown on page 1- The Model GC868 can use either fixed temperature and pressure quality values or live measurement inputs to calculate standard volumetric or mass flow.
  • Page 34 April 2008 Entering the Pressure • SLOT X If you selected Input (cont.) [F1] [F2] a. Press to select input A or press to select input B.The inputs were labeled during setup. b. Enter the Base Pressure (standard) value for the process, and [ENT] press the key.
  • Page 35 April 2008 Procedure Options After completing the above steps, the meter returns to the main I/O 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 the manual for instructions.

  • Page 36: Entering Setup Data

    April 2008 Entering Setup Data The signal limits and response times for the Model GC868 are SETUP specified via the submenu. While following the programming instructions, see Figure A-3 and Figure A-4 in Appendix A, Menu Maps.The following four submenus are included in this section: •...
  • Page 37 April 2008 Setting Signal Limits [ENT] 3. Press to accept the current Signal High Limit value or enter a (cont.) [ENT] new value and press The default value for this parameter is 68 and values from 25 to 100 E16: HIGH SIGNAL are acceptable.
  • Page 38 April 2008 Setting Signal Limits [ENT] 8. Press to accept the current Acceleration value or enter a new (cont.) [ENT] value and press The default value for this parameter is 5.0 ft/sec (4.6 m/sec ) and values from 0 to 100 ft/sec (0 to 30 m/sec ) are acceptable.
  • Page 39 April 2008 Setting Signal Limits Note: If you enter a value of 0 for this command, you enable a (cont.) special mode of operation, ACTIVE SKAN T-OFFSET, that dynamically calculates the offset. [ENT] 13.Press to accept the current % of Peak value or enter a new [ENT] value and press The percentage of peak used to calculate the transit times and Delta T...
  • Page 40 April 2008 Setting Signal Limits [ENT] 18.Press to accept the current # Transmit Pulses value or enter a (cont.) [ENT] new value and press IMPORTANT: Consult the factory before performing this step. # Transmit Pulses specifies the number of pulses in a burst. The default value for this parameter is 1 and values from 1 to 16 are acceptable.
  • Page 41 April 2008 Setting Signal Limits Table 1-7: Default Values and Limits for GC868 (cont.) SETUP Parameters Default Parameter Value Low Limit High Limit Signal Low Limit Signal High Limit Cor. Peak Limit Soundspeed ± Limit Velocity Low Limit -75.0 ft/sec -500 ft/sec +500 ft/sec (-23 m/sec)

  • Page 42: Setting Response Time

    April 2008 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.

  • Page 43: Setting Advanced Parameters

    April 2008 Setting Advanced ADVAN In the option, you can enter parameters for a variety of Parameters specialized operations. You can set parameters for static density, program tables for steam or natural gas and for multiple K factors, and modify parameters for the Skan and Skan/Measure techniques. While following the programming instructions, refer to Figure A-4 on ADVAN page A-4 of Appendix A, Menu Maps.To enter the...
  • Page 44 April 2008 Setting the A Value In the Skan/Measure Integrate mode, the A value aids in minimizing cycle skipping. Use this option to specify parameters for the A value. IMPORTANT: AVAL default settings are suitable for most applications. Before changing any of these parameters, consult the factory.
  • Page 45 April 2008 Setting Skan/Measure MEAS Use the option to modify the parameters of the Skan/Measure Parameters modes. IMPORTANT: MEAS default settings are suitable for most applications. Before changing any of these parameters, consult the factory. [F3] 1. Press to enter the Measurement Settings option. 2.
  • Page 46 April 2008 Entering Multiple K Factors MULTK In the option, you can enter velocity or Reynolds Correction values into a K-Factor table. You can thus “curve fit” velocity or Reynolds calibration multiple data points (from several different data sources or flow variables) to the flow rate reported by the GC868. [F4] 1.
  • Page 47 April 2008 Programming a Gas In the ZTABL option, you can enter data into a global table to define Compressibility Table particular compressibility values. The GC868 can thus implement SonicWare® and other data tables to meet specific applications. [F1] ZTABL 1.
  • Page 48 April 2008 Setting Correlation CORR option allows you to adjust parameters for the Skan/ Parameters ACTIV Correlation technique in the menu. IMPORTANT: CORR default settings are suitable for most applications. Before changing any of these parameters, consult the factory. [F2] CORR 1.
  • Page 49 April 2008 Setting Skan Parameters SKAN In the option, you can activate and set parameters for a negative ACTIV peak percent for both the Skan measurement technique (in the submenu) and the Skan portion of the Skan/Measure technique. When negative peak percent is active, the GC868 searches for the maximum negative peak before the positive peak, and then calculates the T at both negative peak percents entered;...
  • Page 50 April 2008 Procedure Options ADVAN 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 51: Setting The Clock

    April 2008 Setting the Clock CLOCK Use the submenu to enter the current date and time. Refer to Figure A-3 on page A-3. CLOCK [F2] 1. To program the submenu, press [→] and at the initial User Program. Setting the Date 2.
  • Page 52 April 2008 Procedure Options After completing the above steps, the meter returns to the User Program. 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 53: Setting Up Serial Communications

    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 Data Manager or PanaView software. While following the programming instructions, refer to the COMM menu map in Figure A-3 on page A-3.

  • Page 54: Entering Modbus Data

    April 2008 Entering MODBUS Data 4. If your GC868 does not include an option card for MODBUS COMM communications, you have completed programming the submenu. However, if you have installed a MODBUS option card, complete the following steps: [F1]-[F3] a. Use the keys to select the desired MODBUS Baud Rate from four selections: 2400, 4800, 9600 and 19200.

  • Page 55: Modbus Register Map

    April 2008 Procedure Options After completing the above steps, the meter returns to the User Program. 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 56: Notes

    April 2008 Table 1-9: MODBUS Registers for a 1-Channel GC868 MODBUS Scaling Reg # Hex Addr Description (decimal places) Size in Bytes 2 (16 bit signed) 1” Clear Ch1 Totalizers” Not Used 2 (16 bit signed) Velocity 4 (2 16-bit int) Act Volumetric #Q DIGITS 4 (IEEE 32 bit)

  • Page 57: Saving Site Data

    April 2008 Saving Site Data The currently programmed site data may be stored in the Model GC868’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.

  • Page 58: Recalling A Site

    April 2008 Recalling a Site Any site file currently stored in the Model GC868’s non-volatile memory may be recalled at any time. Up to ten site file names, consisting of up to five characters each, may be stored at any given time.

  • Page 59: Activating Security

    April 2008 Activating Security In order to prevent unauthorized tampering with the flowmeter’s programming, the Model GC868 is equipped with a security feature that locks out the following menus: • [PROG] Program Menu • [CAL] Calibration Menu • [LOG] Log Menu •...
  • Page 60 April 2008 Activating Security (cont.) [ENT] 4. Enter the New Password and press . Any combination of letters and numbers up to a total of 21 characters may be used as a password. Note: Keep in mind that the password may have to be entered frequently from the keypad.
  • Page 61 Chapter 2...
  • Page 62 Displaying Data Introduction........... . 2-1 The BIG Submenu .

  • Page 63: Introduction

    April 2008 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, simply [F1]-[F4] [F5]-[F8] change all...

  • Page 64: The Big Submenu

    April 2008 The BIG Submenu format, which is the Model GC868’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 [SCREEN] one shown below) appears.

  • Page 65: The Dual Submenu

    April 2008 The DUAL Submenu DUAL format displays two measurements simultaneously in DUAL 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 66: The Graph Submenu

    April 2008 The GRAPH Submenu GRAPH submenu permits the display of either the flow velocity, mass flow or the volumetric flow on an XY bar graph, with a specified time interval on the x-axis. This section describes the procedures for setting up and using the graph format. Setting Up the GRAPH [SCREEN] Press the appropriate side of the...

  • Page 67: Using The Graph Format

    April 2008 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. [F1]-[F4] 1.23 Ft/s 10:16 Use the [←], [→] and keys to select the desired option.
  • Page 68 April 2008 Using the GRAPH Format Table 2-2: Graph Display Options (cont.) Option Bar Choice Description Moves the cursor to the left and displays the corresponding measurement value and [F1] <CURS time in the status line: 6.85 Ft/s 10:38 (i.e. Moves the cursor to the right and displays the corresponding measurement value and [F2]...

  • Page 69: The Log Submenu

    April 2008 The LOG Submenu submenu permits the display of the data in a log file either graphically or numerically. Although the Model GC868 can display all of the data in a log file, screen size limitations prevent the simultaneous display of the complete log file. Therefore, the function keys must be used to view the remaining data.

  • Page 70: Numeric Format

    April 2008 Numeric Format The Model GC868 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.

  • Page 71: Graphical Format

    April 2008 Graphical Format PLOT FORMAT After choosing at the prompt, the programming sequence continues as follows: 5. Enter a maximum value for the Y-axis (vertical) scale that is larger [ENT] than the maximum expected reading. Press [F1] 6. At the Y Range prompt, press to graph only positive Y values [F2] or press...
  • Page 72 April 2008 Graphical Format (cont.) Table 2-4: Graphical Log Display Options Option Bar Choice Description Move the cursor one record to the left and display the value and time of that record in the [F1] <CURS status line: 6.85 Ft/s 10:38 (i.e.

  • Page 73: Displaying The Transducer Signal

    April 2008 Displaying the SIGNL submenu permits the direct graphical display of several Transducer Signal transducer signals. Specifically, the signals listed in Table 2-5 below may be viewed in this format. Note: Only one side of the display (either left or right) can show a signal at any given time.
  • Page 74 April 2008 Displaying the Transducer Signal (cont.) [F1]-[F4] 686.798mi Use the [←], [→] and keys to select the desired option. The options are listed in Table 2-6 below. ST: 594.298usec <CURS CURS> <PAGE PAGE> The typical display screen shown has the transducer signal listed 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 graphed signal.
  • Page 75 April 2008 Displaying the In addition to the functions available on the option bar, some of the Transducer Signal (cont.) numeric keys are used to specify which transducer signal is displayed and to scale the resulting graph. Table 2-7 below lists these functions. Table 2-7: Numeric Key Functions Function Scroll down the transducer signal list...

  • Page 76: Setting The Lcd Backlight

    April 2008 Setting the LCD Backlight BACKL Use the submenu to specify the number of minutes the LCD display backlight remains on before it is automatically turned off. [SCREEN] 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 77: Activating Sleep Mode

    April 2008 Activating Sleep Mode SLEEP During times when the display is not in use, use the submenu to temporarily suspend LCD display activity, which allows the Model GC868 to process data more quickly. Press the appropriate side of the [SCREEN] key to activate the desired pane of the display screen, then proceed as follows:...
  • Page 78 Chapter 3...
  • Page 79 Logging Data Introduction........... . 3-1 Creating a Standard Log.

  • Page 80: Introduction

    April 2008 Introduction This chapter explains how to use the Model GC868’s data logging [LOG] capability. The menu, which is accessed by pressing the key on the keypad, is divided into four submenus: • - used to log up to three of the available measurement data parameters •...

  • Page 81: Creating A Standard Log

    April 2008 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 82: Log Type

    April 2008 Creating a Standard Log Refer to Chapter 3, Diagnostics, of the Service Manual for a DIAG discussion of the many parameters accessible via the option. Note: The units assigned to the parameters in Table 3-1 on page 3-2 SYSTM are those selected in the User Program ( submenu).

  • Page 83: Start Date Prompt

    April 2008 STARTTIME Prompt (cont.) [F1]-[F2] a. Press to select . Then, enter the desired Hour [ENT] (1-12) and press . (Entry of a start time earlier than the current time will generate an error message.) [ENT] b. Enter the desired Minutes and press .

  • Page 84: Duration Prompt

    April 2008 END TIME Prompt (cont.) [F1]-[F2] a. Press to select . Then, enter the desired Hour [ENT] (1-12) and press . (Entry of a start time earlier than the current time will generate an error message.) [ENT] b. Enter the desired Minutes and press .

  • Page 85: Time Increment Prompt

    April 2008 TIME INCREMENT Prompt Regardless of which of the various options were selected during the previous programming steps, all of the paths converge at this point. [F1]-[F4] 16.Use the [←], [→] and keys to select the desired Time Increment. The available options are: 5sec, 10sec, 30sec, 1min, 3min, 6min, 12min, 30min and 60 min.

  • Page 86: Checking The Memory

    April 2008 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 GC868 suggests that some old logs be cleared to make room for the new log. [SCREEN] Press the appropriate side of the key to activate the desired...

  • Page 87: Stopping A Log

    April 2008 Stopping a Log STOP Use the submenu to terminate a logging process that is currently [SCREEN] 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 88: Creating An Error Log

    April 2008 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 89: Log Type

    April 2008 Creating an ERROR Log In addition, refer to Chapter 3, Diagnostics, of the Service Manual for (cont.) DIAG a discussion of the many parameters accessible via the option. Note: The units assigned to the parameters in Table 3-2 on page 3-9 SYSTM are those selected in the User Program ( submenu).

  • Page 90: Start Date Prompt

    April 2008 STARTTIME Prompt (cont.) [F1]-[F2] a. Press to select . Then, enter the desired Hour [ENT] (1-12) and press . (Entry of a start time earlier than the current time will generate an error message.) [ENT] b. Enter the desired Minutes and press .
  • Page 91 Chapter 4...
  • Page 92 Printing Data Introduction........... . 4-1 Print Live Data .

  • Page 93: Introduction

    April 2008 Introduction The Model GC868 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. A printer with a parallel port input may be used with a third-party serial-to-parallel adapter.

  • Page 94: Print Live Data

    April 2008 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.

  • Page 95: Graphical Format

    April 2008 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. Use the [←], [→] and keys to select the desired time increment (the frequency at which measurements are taken).
  • Page 96 April 2008 Graphical Format (cont.) Table 4-2: 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 →] Forward Totalized Mass Flow + [F2] +MASS...

  • Page 97: Printing Logs

    April 2008 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 98: Graphical Format

    April 2008 Graphical Format After the graphical format (and starting page and number of pages, if applicable) is chosen, complete the following additional steps: 7. Enter the desired maximum value for the Y (vertical) axis and [ENT] press Note: Enter a Y AXIS MAX value that is larger than the largest logged measurement value.

  • Page 99: Print Site File

    April 2008 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 A-6 on page A-6 and complete the following steps: IMPORTANT: Make sure that a printer has been properly set up...

  • Page 100: Stop Printing

    April 2008 Stop Printing STOP Use the submenu to terminate the printing of live, logged or site data. To stop any active printing activity, see Figure A-6 on page A-6 and complete the following steps: IMPORTANT: Make sure that a printer has been properly set up before proceeding with this section.

  • Page 101: Setting Up A Printer

    April 2008 Setting Up a Printer PRNTR Use the submenu to specify the type of printer connected to the Model GC868. To set up a printer, refer to Figure A-6 on page A-6 and complete the following steps: IMPORTANT: A printer must be properly set up before proceeding to any of the other sections in this chapter [PRNT] 1.

  • Page 102: Printing Signal Array Data

    April 2008 Printing Signal Array SGNLS Use the submenu to print signal array data, to help diagnose Data certain problems. To print the signal data, see Figure A-6 on page A-6 and complete the following steps: IMPORTANT: Make sure that a printer has been properly set up before proceeding with this section.
  • Page 103 April 2008 Printing Signal Array SIGNL The data printed via the submenu consists of 1024 lines, each Data (cont.) 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 104: Printing Rtd Data

    April 2008 Printing RTD Data Use the RTDs submenu to send the numeric point value of a connected RTD device to the RS232 port for display on a terminal or RS232 printer. By viewing the point value of the meter at a given temperature, you can calculate the points at the Set Temperature, and the slope of the RTD input in points/degree.
  • Page 105 Chapter 5...
  • Page 106 Clearing Data Introduction........... . 5-1 Reset Totals .

  • Page 107: Introduction

    April 2008 Introduction This chapter explains how to purge the Model GC868’s memory of various measurement totals and/or files. The Clear Menu, which is [CLR] accessed by pressing the key on the keypad, is divided into three submenus: • TOTAL - used to reset totalized measurement values •...

  • Page 108: Reset Totals

    April 2008 Reset Totals TOTAL submenu permits the user to reset volumetric totals to zero and to reset the stopwatch totalizer. Press the appropriate side of the [SCREEN] key to activate the desired pane of the display screen, and complete the following steps: [CLR] 1.

  • Page 109: Deleting Site Files

    April 2008 Deleting Site Files SITE Use the submenu to clear site files from the GC868’s memory. [SCREEN] 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 110: Deleting Log Files

    April 2008 Deleting Log Files Use the submenu to clear log files from the Model GC868’s [SCREEN] memory. Press the appropriate side of the key to activate the desired pane of the data display screen, and complete the following steps: [CLR] 1.
  • Page 111 Chapter 6...
  • Page 112 Serial Communications Introduction........... . 6-1 Wiring the RS232 Interface .

  • Page 113: Introduction

    The first step is to connect the built-in RS232 port in the GC868 to Interface one of the serial ports (COM1 or COM2) on the personal computer. Table 6-1 below lists the standard cables available from the factory for this purpose. Table 6-1: GE Serial Cables Part Number PC Connector GC868 Connector 704-659...

  • Page 114: Checking The Gc868 Baud Rate

    April 2008 Checking the GC868 For successful serial communications, the GC868 and the personal Baud Rate computer must be set up to send/receive data at the same speed. To verify or change the baud rate setting of the GC868, proceed as follows: [PROG] Access the User Program, by pressing the...

  • Page 115: Windows 9X/Nt Systems

    April 2008 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 GC868 is powered on and complete the following steps: PROGRAMS>...

  • Page 116: The Optional Rs485 Serial Interface

    The Optional RS485 Although the standard RS232 serial interface included with the Serial Interface Model GC868 is adequate for most applications, GE offers an optional RS485 serial interface upgrade for special situations. The Model GC868 is easily modified to provide RS485 communications, and this section describes the wiring and use of the special RS232 to RS485 converter.

  • Page 117: Point-To-Point Wiring

    April 2008 Point-To-Point Wiring Standard factory wiring of the RS485 serial interface is configured for point-to-point wiring. That is, a single Model GC868 may be wired directly to a single personal computer. To connect the RS485 serial interface, refer to Figure 6-1 on page 6-4 and complete the following steps: Note: For compliance with the European Union’s Low Voltage Directive (73/23/EEC), a transparent plastic shroud protects...

  • Page 118: Multi-Point Wiring

    April 2008 Multi-Point Wiring The standard point-to-point wiring configuration for the serial interface converter may be modified to permit the use of a multi-point wiring arrangement. In a multi-point RS485 system, one flowmeter (the master) is connected to the personal computer, while a number of additional flowmeters (the slaves) are chained together and connected to the master flowmeter.
  • Page 119 April 2008 Reconfiguring a Serial Interface Converter (cont.) Plastic Case Mounting Screw Screwdriver DB9 Connector Figure 6-2: Opening the Converter Case Table 6-3: 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.
  • Page 120 April 2008 Wiring the System After the serial interface converters have been configured for multi- point operation, the system can be wired. 1. Using twisted-pair wires, connect the XMT+ terminals of all the flowmeters together and connect the XMT– terminals of all the flowmeters together.

  • Page 121: Setting Up An Ethernet Connection

    April 2008 Setting Up an Ethernet A modified GC868 can use the Ethernet interface to communicate Connection 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.

  • Page 122: Setting Up A Modbus/Tcp Connection

    April 2008 Setting Up a MODBUS/ A modified GC868 can use the MODBUS/TCP interface to TCP Connection 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 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 the cable to the LAN according to the manufacturer’s...
  • Page 123 Appendix A...
  • Page 124 Menu Maps ACTIV, SYSTM, and PIPE Menu Map....... . A-1 I/O Menu Map .
  • Page 125 April 2008 NOTE: Plain text represents prompt area messages and boxed text represents option bar choices. Fx represent function keys to select option bar choices. PROG ACTIV SYSTM PIPE SITE LABEL Site status TRANSDUCER NUMBER SITE MESSAGE REYNOLDS BURST VOL DECIMAL DIGITS PIPE OD (English) (Metric) SYSTEM UNITS...
  • Page 126 April 2008 PROG PROGRAM status ACTIV SYSTM PIPE SETUP CLOCK COMM SAVE RECLL SECUR See Figure A-1 See Figure A-1 See Figure A-1 See Figure A-3 See Figure A-3 See Figure A-3 See Figure A-3 See Figure A-3 See Figure A-3 ERROR OPTN ZERO...
  • Page 127 April 2008 NOTE: Plain text represents prompt area messages and boxed text represents option bar choices. PROG Fx represent function keys to select option bar choices. PROGRAM status ACTIV SYSTM PIPE SETUP CLOCK COMM SAVE RECLL SECUR See Figure A-1 See Figure A-1 See Figure A-1 See Figure A-2...
  • Page 128 April 2008 NOTE: Plain text represents prompt area messages and boxed text represents option bar choices. PROG Fx represent function keys to select option bar choices. PROGRAM status ACTIV SYSTM PIPE SETUP CLOCK COMM SAVE RECLL SECUR See Figure A-1 See Figure A-1 See Figure A-1 See Figure A-2...
  • Page 129 April 2008 DISP DISPLAY FORMAT DUAL GRAPH SIGNL BACKL SLEEP NAME LCD SLEEP MODE LOG1 LOG2 LOG3 LOG4 Backlight timeout GRAPH VARIABLE FORMAT VOLUM MDOT PLOT (*available only if Mass Flow (static)? = YES) Y AXIS MAX Y RANGE Signal to Display TIME INCREMENT +only +/–...
  • Page 130 April 2008 PRNT PRINT DATA PROG STOP PRNTR SGNLS RTDs FORMAT FORMAT PLOT PLOT 1st value printed NAME STOP PRINTING SIGNAL ARRAY VOLUM +TOTL –TOTL LOG1 LOG2 LOG3 LOG4 SIGNL CROSS BOTH MDOT +MASS –MASS DIAG (log>1 page) (log=1 page) 1st page (NUM option) (PLOT option) # pages...
  • Page 131 April 2008 LOGGING CLEAR STOP ERROR TOTAL SITE X/120 Pages FREE NAME CLEAR TOTALS SITE NAME NAME Y Pages PENDING LOG1 LOG2 LOG3 LOG4 SITE1 SITE2 SITE3 SITE4 LOG1 LOG2 LOG3 LOG4 Stop Logging ? CLEAR SITE NAME CLEAR NAME NAME LOG1 LOG2...
  • Page 132 Appendix B...

  • Page 133: Appendix B: Data Records

    Data Records Option Cards Installed ......... . B-1 Initial Setup Data .

  • Page 134: Option Cards Installed

    April 2008 Option Cards Installed 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 Cards Installed Slot # Type of Option Card Additional Setup Information...

  • Page 135: Initial Setup Data

    April 2008 Initial Setup Data After the Model GC868 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: Initial Setup Data General Information Model # Reference Software Vers.
  • Page 136 Appendix C...
  • Page 137 Programming with PanaView Introduction........... . C-1 Wiring the RS232 Interface .

  • Page 138: Introduction

    April 2008 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 GC868 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 139: Setting Up The Communications Port

    April 2008 Setting Up the Use the steps below to establish communications with the GC868. Communications Port 1. Open the “New Meter Browser” window and expand the network tree. Then, highlight the My Computer(Name) branch by clicking on it. 2. Pull down the “Edit” menu by clicking on it in the menu bar. 3.
  • Page 140 April 2008 Setting Up the 4. Click on the “Communications Port” option to select it. The Setup Communications Port Communications screen appears similar to Figure C-2 below. (cont.) Figure C-2: Setup Communications Screen 5. Open the Protocol menu (the first of the drop-down menus) and click on IDM.

  • Page 141: Setting Up Ethernet Communications

    April 2008 Setting up Ethernet If you have selected TCP/IP in step 6 on the previous page, the Setup Communications Communications window appears similar to Figure C-3 below. Figure C-3: Setup Communications for TCP/IP 7. Type in the desired Name and Timeout (in milliseconds). 8.

  • Page 142: Adding The Gc868

    April 2008 Adding the GC868 To add the GC868 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 143 April 2008 Adding the GC868 (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 C-6 below. Figure C-6: The Updated Network Tree Note: The model number and version that appear will vary with your particular meter and software version.

  • Page 144: Editing Meter Properties

    April 2008 Editing Meter Properties Through PanaView, you can edit the properties of your GC868. You can: • Set the meter clock, or synchronize it with the PC clock • Read, plot and save transducer signals • Clear totalizers • Save site files to the meter or PC •...
  • Page 145 April 2008 Editing Meter Properties The window appears similar to Figure C-9 below. To perform a (cont.) specific task, refer to the appropriate section on the following pages. • Setting the Meter Clock (page C-9) • Reading Transducer Signals (page C-10) •...

  • Page 146: Setting The Meter Clock

    April 2008 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 147: Reading Transducer Signals

    April 2008 Reading Transducer To read a Signal from the meter: Signals 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 C-11 below.

  • Page 148: Saving Transducer Signals

    April 2008 Saving Transducer Signals To save the raw signal, click Save. A window opens similar to Figure C-13 below. Enter the desired name, and click Save to save the signal as a text file. Figure C-13: Save As Window Clearing Totalizers To clear the meter totalizers, click on the Clear Totalizers button in the Properties window.

  • Page 149: Handling Site Files

    April 2008 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 C-14 below) opens. Figure C-14: The Site File Operations Window Saving an Existing Site to To save an existing site to the meter: the Meter 1.
  • Page 150 April 2008 Saving a New Site to the To save a new site to the meter: Meter 1. Select the radio button for New and click on the Save Site to Meter button. 2. A window opens similar to Figure C-16 below. Enter the desired [OK] name, and click Figure C-16: Site Name Entry Window...
  • Page 151 April 2008 Clearing a Site from the To clear a site from the meter: Meter 1. Highlight the site in the left pane. (See Figure C-14 on page C-12.) 2. Click Clear Site From Meter. 3. The program asks for confirmation. Click [OK] .

  • Page 152: Changing Meter Settings

    April 2008 Changing Meter Settings Through PanaView, GC868 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 153 April 2008 Changing Meter Settings 4. From the meter tree, expand the Edit Functions option. The (cont.) window now appears similar to Figure C-19 below, with a list of available menus. The menus listed are those available on the meter. Figure C-19: Meter Tree with Edit Functions Option 5.
  • Page 154 April 2008 Changing Meter Settings 6. To enter a particular option: (cont.) a. Highlight and double-click on the desired option in the left pane. Figure C-21 below 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 155 April 2008 Changing Meter Settings (cont.) Figure C-22: Site Edit Menu with Current Settings 7. When you have completed entering parameters in a given option, [Exit Page] click to close the option. You can then double-click on [Close] another option, or click to close the window.
  • Page 156 Appendix D...
  • Page 157 Foundation Fieldbus Communications Optional Measurements .........D-1 Configuration Utility Setup .

  • Page 158: Optional Measurements

    April 2008 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 2 Analog Input (AI) blocks, which can be configured to supply the following measurements on the network (see Table D-1 below).

  • Page 159: Configuration Utility Setup

    Setup Configuration Utility v3.1. Figure D-1 below shows the Configuration Utility with a flowmeter on the network (GE Flow-XMT). Figure D-1: 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 160 April 2008 Selecting the Desired 4. After the desired measurements have been selected for the PRIMARY and SECONDARY SELECTOR, choose the unit system Measurements (cont.) (UNIT_SELECTOR above the PRIMARY_SELECTOR) that has been programmed in the flowmeter (English or SI). Figure D-2: Primary Selector Drop Down List Foundation Fieldbus Communications...

  • Page 161: Selecting Units For Ai Blocks

    April 2008 Selecting Units for AI To select the units for the individual AI blocks: 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; see Figure D-1 on page D-2). 2.

  • Page 162: Resetting Instrument Totalizers

    April 2008 Resetting Instrument To reset the instrument totalizers: Totalizers 1. Double click on the FLOW transducer block (in the tree under GEFlow-XMT; see Figure D-1 on page D-2). 2. Select the Others tab and scroll down to the CLEAR_TOTALIZERS listing.

  • Page 163: Function Block Application

    April 2008 Function Block Figure D-5 below is an example setup using the Function Block Application editor. The flowmeter AI blocks, along with the AO and Application 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 164 April 2008 Index Abbreviations, Volumetric Units ..1-11 Data Record ACTIV Initial Setup ......B-2 Menu Map .
  • Page 165 April 2008 Index (cont.) Gas Equation......1-10 GRAPH Entering the Submenu ....2-7 Screen Display Options .
  • Page 166 April 2008 Index (cont.) On-Line Help ......1-6 PanaView ......1-44 Option Card Applications .
  • Page 167 April 2008 Index (cont.) Site Edit Menu..... . . C-16 Site File SAVE Handling ......C-12 Entering.
  • Page 168 April 2008 Index (cont.) Volumetric Units Abbreviations ..... . 1-11 Selecting ......1-11 Table of Options .
  • Page 169 DECLARATION Sensing CONFORMITY Panametrics Limited Shannon Industrial Estate Shannon, County Clare Ireland declare under our sole responsibility that the GC868 Gas Clamp-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 •...
  • Page 170 DECLARATION Sensing CONFORMITE Panametrics Limited Nous, Shannon Industrial Estate Shannon, County Clare Ireland déclarons sous notre propre responsabilité que les GC868 Gas Clamp-On Ultrasonic Flowmeter rélatif á cette déclaration, sont en conformité avec les documents suivants: • EN 61326:1998, Class A, Annex A, Continuous Unmonitored Operation •...
  • Page 171 KONFORMITÄTS- Sensing ERKLÄRUNG Panametrics Limited Wir, Shannon Industrial Estate Shannon, County Clare Ireland erklären, in alleiniger Verantwortung, daß die Produkte GC868 Gas Clamp-On Ultrasonic Flowmeter folgende Normen erfüllen: • EN 61326:1998, Class A, Annex A, Continuous Unmonitored Operation • EN 61010-1:1993 + A2:1995, Overvoltage Category II, Pollution Degree 2 gemäß...
  • Page 172 1100 Technology Park Drive Billerica, MA 01821-4111 Web: www.gesensing.com Ireland Sensing House Shannon Free Zone East Shannon, Co. Clare Ireland...

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