GE DigitalFlow DF868 Programming Manual
  1. Manuals
  2. Brands
  3. GE Manuals
  4. Measuring Instruments
  5. DigitalFlow DF868
  6. Programming manual

GE DigitalFlow DF868 Programming Manual

Panametrics multipurpose ultrasonic liquid flowmeters
Hide thumbs Also See for DigitalFlow DF868:
Table of Contents

Advertisement

Quick Links

Download this manual
GE
Sensing & Inspection Technologies
DigitalFlow™ DF868
Panametrics Multipurpose Ultrasonic Liquid Flowmeter
Programming Manual (1-Channel)

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DigitalFlow DF868 and is the answer not in the manual?

Questions and answers

Related Manuals for GE DigitalFlow DF868

Summary of Contents for GE DigitalFlow DF868

  • Page 1 Sensing & Inspection Technologies DigitalFlow™ DF868 Panametrics Multipurpose Ultrasonic Liquid Flowmeter Programming Manual (1-Channel)
  • Page 2 Sensing & Inspection Technologies DigitalFlow™ DF868 Panametrics Multipurpose Ultrasonic Liquid Flowmeter Programming Manual (1-Channel) 910-176P1D1 March 2008 The DigitalFlow DF868 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

    March 2008 Table of Contents Chapter 1: Programming Site Data Introduction ................1-1 Using the Keypad .
  • Page 5 March 2008 Table of Contents (cont.) Chapter 1: Programming Site Data (cont.) Recalling a Site ................1-53 Entering KV vs.
  • Page 6 March 2008 Table of Contents (cont.) Chapter 4: Printing Data Introduction ................4-1 Setting Up a Printer .
  • Page 7 March 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

    March 2008 Introduction The Model DF868 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

    March 2008 Using the Keypad The Model DF868 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 1-2.
  • Page 12 March 2008 Table 1-1: Model DF868 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 March 2008 Table 1-1: Model DF868 Key Functions (Continued) Unshifted Function Shifted Function Display Key - use to display data in a Use to enter the letter O. variety of numeric and graphic format- ting options. See Chapter 2, Displaying Data, page 2-2, for details.
  • Page 14 March 2008 Table 1-1: Model DF868 Key Functions (Continued) Unshifted Function Shifted Function One Key - use to enter the number 1. Use to enter the letter S. Two Key - use to enter the number 2. Use to enter the letter T. Three Key - use to enter the number 3.

  • Page 15: Obtaining On-Line Help

    March 2008 Obtaining On-line Help A context-sensitive, on-line help system is programmed into every Model DF868 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

    March 2008 Using the Console The Model DF868 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: Adjusting the Alarm Use the top console control key to adjust the audio alarm volume.

  • Page 17: The User Program

    March 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 A Channel

    March 2008 Activating a Channel ACTIV submenu permits selection of the desired measurement method. While following the programming instructions, refer to Figure A-1 and Figure A-2 in Appendix A, Menu Maps. ACTIV 1. Enter the submenu by pressing [F1] at the User Program prompt.

  • Page 19: Entering System Data

    March 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 the key. (While taking measurements, the site label appears on the locator bar.) 3.
  • Page 20 March 2008 Entering System Data (cont.) Table 1-2: Volumetric Unit Options English Volumetric Units Metric Volumetric Units GAL/S - U.S. Gallons per Second L/S- Liter per Second GAL/M - U.S. Gallons per Minute L/M - Liters per Minute GAL/H - U.S. Gallons per Hour L/H - Liters per Hour MGD - Millions of U.S.
  • Page 21 March 2008 Entering System Data [F1]-[F4] 8. Press to select the Vol Decimal Digits (the desired number (cont.) of digits to the right of the decimal point) in the volumetric flow rate display. [F1]-[F4] 9. Use the and [→] keys to select the Totalizer Units. The abbreviations and definitions of all the available totalizer units are shown in Table 1-3 below.

  • Page 22: Mass Flow

    March 2008 Mass Flow Mass Flow SETUP If the prompt in the submenu is not enabled, skip this sub-section. However, the following programming sequence Mass Flow appears if is enabled. [F1]-[F4] 1. Use the keys to select the desired Mass Flow units, listed in Table 1-4 below.

  • Page 23: Energy Option

    March 2008 Energy Option If you did not select the Energy Option earlier, the meter now returns to the initial User Program screen. But if you selected the Energy Option, several additional prompts appear. [F1]-[F4] 1. Use the keys to select the desired Power units, listed in Table 1-5 below.

  • Page 24: Entering Pipe Data

    March 2008 Entering Pipe Data PIPE submenu permits entry of the transducer and pipe specifications. To program this menu, complete the following steps: [F3] PIPE 1. At the User Program screen, press to program the submenu. Transducer Number 2. Enter the Transducer Number engraved on the head of the [ENT] transducer and press .

  • Page 25: Pipe Material

    March 2008 Pipe Material [F1]-[F4] 3. Use the and [→] keys to select the Pipe Material, as listed in Table 1-7 below. Table 1-7: Pipe Materials Pipe Material Category Specific Material Steel Carbon Steel or Stainless Steel Iron Ductile Iron or Cast Iron Cu - Copper None Al - Aluminum...

  • Page 26: Pipe Wall

    OD. If the pipe wall thickness is not available, look up the value in a table of standard pipe size data (such as the GE brochure Sound Speeds and Pipe Size Data, 914-004), or use the Model DF868’s on-line Help Menu (see the Programming Manual for details).

  • Page 27: Tracking Windows

    March 2008 Tracking Windows Note: This step only appears if you have selected Transit-Time. [F1] [F2] 9. Press if you do not want Tracking Windows, or if you want to enable the windows. (Tracking windows are used to detect the receive signal when you are unsure of the fluid soundspeed.) Fluid Type [F1]-[F4]...

  • Page 28: Reynolds Correction

    March 2008 Table 1-10: Fluid Types for ENERGY ON Tracking Windows = Additional Selections Additional Selections WATER Enter the Water Temperature and W260 No additional selections required. press [ENT]. MIXED Enter the Fluid Soundspeed and MIXED Enter the Percentage of Water and press [ENT].

  • Page 29: Calibration Factor

    March 2008 Calibration Factor [ENT] 13.Enter a value for the flow Calibration Factor and press . The default value is 1.00, but values between 0.50 and 2.00 may be entered. 14.The menu now varies, depending on whether you have activated the TransFlection or Transit-Time mode.

  • Page 30: Setting Up Inputs/Outputs

    March 2008 Setting Up Inputs/ Set up the DF868’s inputs and outputs using the five options in the Outputs submenu. While following the programming instructions, refer to Figure A-3 in Appendix A, Menu Maps. • ERROR - program the meter’s response during an error condition •...

  • Page 31: Setting Up Analog Outputs

    March 2008 Setting Up Analog Outputs The Model DF868 has two built-in analog outputs that are assigned to Slot 0 . 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 32 March 2008 Slot X Analog Outputs Slot X Complete the following steps to set up the analog outputs: [F1]-[F4] 1. Use the [←] and [→] and the keys to select the desired slot number. [F1] [F2] 2. Press to set up output A or press to set up output B.
  • Page 33 March 2008 Slot X Analog Outputs [F1]-[F4] 7. Use the keys to select the desired Error Option, the way (cont.) the display responds during an error condition. Available options are shown in Table 1-13 below. Table 1-13: Error Response Options Option Display Response HOLD...
  • Page 34 March 2008 Setting Up the Totalizer/ Complete the following steps to set up the four totalizer/frequency Frequency Outputs Slot x outputs of an option card installed in [F1]-[F4] 1. Use the [←] and [→] and keys to select the desired slot number.
  • Page 35 March 2008 Programming a Totalizer This type of output issues one pulse per selected volume of flow. The Output meter produces a pulse each time the programmed amount of flow passes through the pipe. [F1]-[F4] 9. Press to select the parameter to be totalized. See Table 1- 15 below for a description of the available options.

  • Page 36: Setting Up The Analog Inputs

    March 2008 Setting Up the Analog Note: To install an option card RTD input, see the next page. Inputs Complete the following steps to set up the two analog inputs of an Slot x option card installed in [F1]-[F4] 1. Use the [←] and [→] and keys to select the desired Slot Number.

  • Page 37: The Zero Option

    March 2008 Option Card RTD Inputs Option cards with RTD inputs have a temperature range of –100° to 350°C (-148° to 662°F). Complete the following steps to set up the two RTD inputs of an option card installed in Slot x: [F1]-[F4] 1.

  • Page 38: Setting Up Energy Inputs

    March 2008 Setting Up Energy Inputs E IN ENERGY OPTION ON option appears only if you have chosen SYSTEM [F4] E IN. submenu. From the I/O prompt, press to select The option lets you specify either live or fixed supply and return temperature inputs for the energy flow calculation.

  • Page 39: Setting Up Temperature Inputs

    March 2008 Setting Up Temperature The DF868 can use either fixed temperature values or live Inputs measurement inputs to calculate standard volumetric or mass flow. By programming the correct source for the temperature input, you enable the DF868 to apply temperature compensation (discussed on page 1-55).

  • Page 40: Entering Setup Data

    March 2008 Entering Setup Data The signal limits and response times for the Model DF868 are SETUP specified using the submenu. While following the programming instructions, refer to Figure A-4 on page A-4. The following four submenus are included in this section: •...
  • Page 41 March 2008 Transit-Time SIGNL [ENT] Signal Low Limit 1. Press to accept the current value or enter a Options [ENT] new value and press The default value for this parameter is 40 and values from –20 to 100 E1: LOW SIGNAL are acceptable.
  • Page 42 March 2008 Transit-Time SIGNL [ENT] Acceleration 6. Press to accept the current value or enter a new Options (cont.) [ENT] value and press The default value for this parameter is 15.0 ft/sec (4.6 m/sec ) and values from 0 to 100 ft/sec (0 to 30 m/sec ) are acceptable.
  • Page 43 March 2008 Transit-Time SIGNL [F1]-[F4] 11. Use the [→] and keys to select one of the preset values for Options (cont.) XMIT Sample Size from the option bar. Both the upstream and downstream transducers transmit ultrasonic XMIT pulses in bursts, which consist of a series of transmit pulses. SAMPLE SIZE determines how many bursts are sent in one direction before sending in the other direction.
  • Page 44 March 2008 TransFlection SIGNL [ENT] Signal Low Limit 1. Press to accept the current value or enter a Options [ENT] new value and press The default value for this parameter is 40 and values from –20 to 100 E1: LOW SIGNAL are acceptable.
  • Page 45 March 2008 TransFlection SIGNL [ENT] 6. Press to accept the current Rep Period 1 value, or use the Options (cont.) [F1]-[F4] keys and [←] and [→] keys to select the desired value (from 100 to 3200). [ENT] 7. Press to accept the current Rep Period 2 value, or use the [F1]-[F4] keys and [←] and [→] keys to select the desired value (from 100 to 3200).
  • Page 46 March 2008 TransFlection SIGNL Table 1-17: Response Time vs. XMITs Options (cont.) Repetition Rates XMITs Per Reading 200 µsec 800 µsec 30,000 6 sec 24 sec 5,000 1 sec 4 sec [ENT] 9. Press to accept the current Weak Signal Threshold value, or use the numeric keys to enter a value between 0 and 100 and press [ENT].

  • Page 47: Setting Response Time

    March 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 48: Accessing Advanced Features

    March 2008 Accessing Advanced ADVAN option enables you to access the more advanced features Features of the DF868. In this option you can perform five functions: • calculate the kinematic viscosity (KV) based on signal strength (SS), or activate temperature compensation by applying a temperature vs.
  • Page 49 March 2008 Entering a K-factor Table Use this option to enter a table of K-factors. K-factors are used to create a curve for the flow range (based on velocity or Reynolds number) that compensates for non-linear flow rates. The DF868 accepts from 2 to 20 pairs.
  • Page 50 March 2008 Activating Mass Flow Use this option to calculate mass flow from a static fluid density. Complete the following steps to enter the fluid density: ADVAN [F3] (MASS) to select Mass from Static 1. At the window, press Density [F1] [F2] 2.
  • Page 51 March 2008 Active Tw Measurement Use this option to actively compensate the transit-time measurement in the fluid for widely varying transducer signal delays that result from large temperature deviations. IMPORTANT: Consult the factory before activating this option. ADVAN [F1] (ActTw) 1.
  • Page 52 March 2008 Table 1-18: Default Values and Limits for SETUP Parameters (Continued) Parameter Default Value Low Limit High Limit Minimum Peak % Limit -100 +100 Maximum Peak % Limit -100 +100 T Window 1,000 R Window TransFlection Signal Low Limit Velocity Low Limit -40.0 ft/sec -100 ft/sec...

  • Page 53: Setting The Clock

    March 2008 Setting the Clock CLOCK Use the submenu to enter the current date and time. While following the instructions, refer to Figure A-5 in Appendix A, Menu Maps. CLOCK [F2] 1. Enter the submenu by pressing [→] and at the initial User Program.
  • Page 54 March 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 55: Setting Up Serial Communications

    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 instructions, refer to Figure A-5 in Appendix A, Menu Maps.

  • Page 56: Modbus (Rs485) Parameters

    March 2008 MODBUS (RS485) If your DF868 does not include an option card for MODBUS Parameters communications, you have completed programming the COMM submenu. However, if you have installed a MODBUS option card, the following additional prompts appear. [F1]-[F4] 1. Press to select the desired MODBUS Baud Rate from four selections: 2400, 4800, 9600 and 19,200.

  • Page 57: Modbus Register Map

    March 2008 MODBUS Register Map When equipped with the optional MODBUS output card, the DF868 flow transmitter can send flow data and diagnostic information to a flow computer (or SCADA) serially, using a Gould-type RTU protocol. In this case, only the MODBUS function command, 3 (read multiple registers), 6 (write multiple registers) is valid.
  • Page 58 March 2008 Table 1-20: DF868 1-Channel MODBUS Registers Scaling MODBUS (decimal Reg # Description Units places) Size in Bytes none 2 (16 bit signed) Clear Totalizers CH1 Velocity ft/s or m/s 4 (32 bit integer) CH1 Volumetric VOL_U 4 (IEEE 32 bit) CH1 +Totals TOT_U Register 10...
  • Page 59 March 2008 Table 1-20: DF868 1-Channel MODBUS Registers (Continued) Scaling MODBUS (decimal Reg # Description Units places) Size in Bytes CH 1 # Energy Digits none 2 (16 bit integer) CH 1 TempS °F or °C 4 (32 bit integer) CH 1 TempR °F or °C 4 (32 bit integer)
  • Page 60 March 2008 MODBUS Register Map Notes: (cont.) 1. Clear Totalizers: flag from the 8051 to clear totalizers in the 68332 memory. 2. Error Value: see Chapter 2, Error Codes and Screen Messages, in the Service Manual for error codes. 3. Average: average of channel 1 and channel 2 if both channels out of error, channel 1 value if channel 2 is in error, channel 2 value if channel 1 is in error,...

  • Page 61: Saving Site Data

    March 2008 Saving Site Data The currently programmed site data may be stored in the Model DF868’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 62: Recalling A Site

    March 2008 Recalling a Site Any site file currently stored in the Model DF868’s non-volatile memory may be recalled at any time. While following the instructions, refer to Figure A-5 in Appendix A, Menu Maps. Up to ten site file names, consisting of up to five characters each, may be RECLL stored at any given time.

  • Page 63: Entering Kv Vs. Ss Tables

    March 2008 Entering KV vs. SS Tables The KV/SS submenu enables you to enter a table of values of the kinematic viscosity (KV) based on signal strength (SS). You can then use this table to calculate KV as shown in the KV/SS option (in the ADVAN option of the SETUP submenu) discussed on page 1-39.

  • Page 64: Entering Temperature Vs. Viscosity Tables

    March 2008 Entering Temperature vs. The TmpKV submenu enables you to enter temperature vs. viscosity Viscosity Tables tables for up to three petrochemical products. Users can program the names of each product, along with temperature vs. viscosity data points for each table. To apply the tables, you must program the DF868 to use the table for the desired fluid (discussed in Calculating Kinematic Viscosity on page 1-39), and program the temperature input source (as shown in Setting Up Temperature Inputs on page 1-...
  • Page 65 March 2008 Entering the Table Data IMPORTANT: At the next prompt, the kinematic viscosity values (cont.) entered must be in the range of 0.045 to 10000*10-6 ft^2/s or m^2/s. The values will appear as ft^2/s if the meter is set for English units or m^2/s if the meter is set for metric units.

  • Page 66: Activating Security

    March 2008 Activating Security In order to prevent unauthorized tampering with the flowmeter’s programming, the Model DF868 is equipped with a security feature that locks out the following menus: • [PROG] Program Menu • [CAL] Calibration Menu • [LOG] Log Menu •...
  • Page 67 March 2008 Activating Security [ENT] 5. Enter the New Password and press . Any combination of (cont.) 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 68 Chapter 2...
  • Page 69 Displaying Data Introduction........... . 2-1 The BIG Submenu .

  • Page 70: Introduction

    March 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 71: The Big Submenu

    March 2008 The BIG Submenu format, which is the Model DF868’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 72: The Dual Submenu

    March 2008 The BIG Submenu (cont.) Table 2-1: Measurement Parameter Options Option Bar Choice Description = VEL Flow Velocity [F1] = VOLUM Volumetric Flow [F2] = +TOTL Forward Totalized Volume Flow [F3] = -TOTL Reverse Totalized Volume Flow [F4] →] = TIME Total Flow Measurement Time + [F1]...

  • Page 73: The Graph Submenu

    March 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 74 March 2008 Using the Graph Format The typical screen shown on page 2-4 is for a Velocity vs. Time graph (cont.) with only the positive y-axis displayed. The measurement parameter (VEL) 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 graphed data.

  • Page 75: The Log Submenu

    March 2008 The LOG Submenu submenu permits the display of the data in a log file either graphically or numerically. Although the Model DF868 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 76: Numeric Format

    March 2008 Numeric Format The Model DF868 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 77: Graphical Format

    March 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 and press [F1] 6. At the Y-Range prompt, press to graph only positive Y values [F2] or press...
  • Page 78 March 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 [F1] <CURS that record in the status line: (i.e. 6.85 Ft/s 10:38 Move the cursor one record to the right and display the value and time of [F2] CURS>...

  • Page 79: Displaying The Transducer Signal

    March 2008 Displaying the SIGNL submenu permits the direct graphical display of several Transducer Signal transducer signals. Specifically, the signals listed in Table 2-5 and Table 2-6 below may be viewed in this format. Table 2-5: Transit-Time Transducer Signals Transducer Signal Description upstream signal Sdown...
  • Page 80 March 2008 Displaying Transducer The typical display screen shown has the transducer signal listed Signals (cont.) 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. Notice that most of the locator bar has been replaced by a status line in standard video that shows the signal amplitude and the time (in microseconds) of the measurement at the current cursor location.
  • Page 81 March 2008 Displaying Transducer Table 2-8: Numeric Key Functions Signals (cont.) Function Scroll down the transducer signal list Scroll up the transducer signal list Expand the graph vertically Return expanded graph to previous size Compress graph horizontally Return compressed graph to previous size In summary, three basic functions are performed with the numeric keys: •...

  • Page 82: Setting The Lcd Backlight

    March 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 83 Chapter 3...
  • Page 84 Logging Data Introduction........... . 3-1 Creating a Standard Log.

  • Page 85: Introduction

    March 2008 Introduction This chapter explains how to use the Model DF868’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 86: Creating A Standard Log

    March 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 87 March 2008 Creating a Standard Log Table 3-1: Measurement Parameter Options (cont.) 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...

  • Page 88: Log Type

    March 2008 Log Type [F1] [F2] 9. Press to create a non-circular log or press to create a circular log. A non-circular log automatically stops when the meter runs out of END TIME memory or the specified is reached. A circular log runs continuously until manually stopped, but only the data from the most recent log cycle is saved.

  • Page 89: End Time Prompt

    March 2008 END TIME Prompt [F1] [F2] 12.Press to accept the displayed End Time or press to enter a different end time. To select a specific time period for the log to [F3] run, press • END DATE was selected, proceed to the prompt.

  • Page 90: Time Increment Prompt

    March 2008 LOG TIME Prompt TIMED was selected at step 12, the programming sequence continues here. [F1]-[F4] 15.Use the [←], [→] and keys to select the desired log duration.The available options at this prompt are: 10min, 30min, 60min, 3 HR, 6 HR, 12 HR and 24 HR. TIME INCREMENT Proceed directly to the prompt.

  • Page 91: Checking The Memory

    March 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 DF868 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 92: Stopping A Log

    March 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 93: Creating An Error Log

    March 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 94 March 2008 Creating an ERROR Log Table 3-2: Measurement Parameter Options (cont.) 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...

  • Page 95: Log Type

    March 2008 Log Type [F1] [F2] 9. Press to create a non-circular log or press to create a circular log. A non-circular log automatically stops when the meter runs out of END TIME memory or the specified is reached. A circular log runs continuously until manually stopped, but only the data from the most recent log cycle is saved.
  • Page 96 March 2008 Procedure Options You have completed setting up the error log. Do one of the following: • Use [↑] and [↓] to review the previous menu prompts. • [F1]-[F4] Press to select one of the submenus. • To return to the data screen and begin logging data, press the [ENT] key.
  • Page 97 Chapter 4...
  • Page 98 Printing Data Introduction........... . 4-1 Setting Up a Printer .

  • Page 99: Introduction

    March 2008 Introduction The Model DF868 flowmeter has the capability to print any of the data stored in its memory using 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 100: Setting Up A Printer

    March 2008 Setting Up a Printer PRNTR Use the submenu to specify the type of printer connected to the Model DF868. To set up a printer, refer to Figure A-7 in Appendix A, Menu Maps, and complete the following steps: IMPORTANT: A printer must be properly set up before proceeding to any of the other sections in this chapter.

  • Page 101: Print Live Data

    March 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 102 March 2008 Numeric Format (cont.) Refer to Chapter 3, Diagnostics, of the Service Manual for a DIAG discussion of the many parameters accessible using the option. Note: The units assigned to the parameters in Table 4-2 on page 4-3 SYSTM are those selected in the User Program ( submenu).

  • Page 103: Graphical Format

    March 2008 Graphical Format To print live data in graphical format, continue as follows: [F1]-[F4] 8. Use the [←], [→] and keys to select the first parameter to be printed. See Table 4-2 on page 4-3 for a list of the available options.

  • Page 104: Printing Logs

    March 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 105: Numeric Format

    March 2008 Numeric Format After the numeric format (and starting page and number of pages, if applicable) is chosen, the Model DF868 returns to the standard data display screen and begins printing the log file. The printout continues STOP until the entire log has been printed or until a command is issued STOP (see the instructions for the...

  • Page 106: Print Site File

    March 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-7 in Appendix A, Menu Maps, and complete the following steps: IMPORTANT: Make sure that a printer has been properly set up...

  • Page 107: Stop Printing

    March 2008 Stop Printing STOP Use the submenu to terminate the printing of live, logged or site data. To stop any active printing activity, refer to Figure A-7 in 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 108 Chapter 5...
  • Page 109 Clearing Data Introduction........... . 5-1 Clearing Totalized Data .

  • Page 110: Introduction

    March 2008 Introduction This chapter explains how to purge the Model DF868’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 111: Clearing Totalized Data

    March 2008 Clearing Totalized Data 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 112: Deleting Log Files

    March 2008 Deleting Log Files Use the submenu to clear log files from the Model DF868’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 113 Chapter 6...
  • Page 114 Serial Communications Introduction........... . 6-1 Wiring the RS232 Interface .

  • Page 115: Introduction

    The first step is to connect the built-in RS232 port in the DF868 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 DF868 Connector 704-659...

  • Page 116: Checking The Df868 Baud Rate

    March 2008 Checking the DF868 For successful serial communications, the DF868 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 DF868, proceed as follows: [PROG] Access the User Program by pressing the...

  • Page 117: The Optional Rs485 Serial Interface

    The Optional RS485 Although the standard RS232 serial interface included with the Serial Interface Model DF868 is adequate for most applications, GE offers an optional RS485 serial interface upgrade for special situations. The Model DF868 is easily modified to provide RS485 communications, and this section describes the wiring and use of the special RS232 to RS485 converter.

  • Page 118: Point-To-Point Wiring

    March 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 DF868 may be wired directly to a single personal computer. To connect the RS485 serial interface, refer to Figure 6-1 on page 6-3 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 119: Multi-Point Wiring

    March 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 120 March 2008 Reconfiguring a Serial Interface Converter (cont.) Plastic Case Mounting Screw Screwdriver DB9 Connector Figure 6-2: Opening the Converter Case Table 6-2: 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 121 March 2008 Wiring the System After the serial interface converters have been configured for multi- point operation, the system can be wired. 1. Using twisted-wire pairs, connect the XMT+ terminals of all the flowmeters together and connect the XMT– terminals of all the flowmeters together.

  • Page 122: Setting Up An Ethernet Connection

    March 2008 Setting Up an Ethernet A modified DF868 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 123: Setting Up A Modbus/Tcp Connection

    March 2008 Setting Up a MODBUS/ A modified DF868 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 DF868 to the network, insert the jack of an RJ45 cable into the RJ45 connector, route the cable through the bottom of the DF868, and wire the other end of the cable to the LAN according to the manufacturer’s...
  • Page 124 Appendix A...
  • Page 125 Menu Maps ACTIV, SYSTM, and PIPE Menu Map (Energy OFF)....A-1 ACTIV, SYSTM, and PIPE Menu Map (Energy ON) ....A-2 I/O Menu Map .
  • Page 126 March 2008 PROG PROGRAM status NOTE: Plain text represents prompt area messages and boxed text represents option bar choices. Fx represent function keys to select option bar choices. ACTIV SYSTM PIPE SETUP SITE LABEL Site status See Figure A-3 See Figure A-3 TRANSDUCER NUMBER SITE MESSAGE ENERGY OPTION...
  • Page 127 March 2008 PROG PROGRAM status ACTIV SYSTM PIPE SETUP SITE LABEL See Figure A-3 See Figure A-3 NOTE: Plain text represents prompt area messages and Site status TRANSDUCER NUMBER SITE MESSAGE boxed text represents option bar choices. ENERGY OPTION Fx represent function keys to select option bar choices. TRANS TRNFL SPEC...
  • Page 128 March 2008 PROG PROGRAM status ACTIV SYSTM PIPE SETUP CLOCK COMM SAVE RECLL KV/SS SECUR ERROR OPTN ZERO E IN F IN TOTAL ERROR HANDLING ZERO CUTOFF TEMP INPUT SUPPLY HOLD NO UP SLOT0 SLOTX FIXED SLOTX Slot 0 - Analog Outputs FIXED TEMP A:LABEL B:LABEL ERROR HANDLING...
  • Page 129 March 2008 PROG ACTIV SYSTM PIPE SETUP See Figure A-1 or A-2 See Figure A-1 or A-2 See Figure A-1 or A-2 See Figure A-3 SET UP SIGNL AVRG INIT ADVAN (TRANS) (TRNFL) RESPONSE TIME Press YES to Default Advanced Features SIGNAL LOW LIMIT SIGNAL LOW LIMIT KVTab...
  • Page 130 March 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 TmpKV ACTIV SYSTM PIPE SETUP CLOCK COMM SAVE RECLL KV/SS SECUR DATE FL#01 FL#02 FL#03...
  • Page 131 March 2008 DISP DISPLAY FORMAT DUAL GRAPH SIGNL BACKL NAME Backlight timeout LOG1 LOG2 LOG3 LOG4 GRAPH VARIABLE FORMAT (*available only if Mass Flow (static)? = YES) VOLUM MDOT PLOT Y AXIS MAX Y RANGE TIME INCREMENT +only +/– 5sec 10sec 30sec 1min...
  • Page 132 March 2008 PRNT PRINT DATA PROG STOP PRNTR FORMAT FORMAT PLOT PLOT NAME STOP PRINTING VOLUM +TOTL –TOTL MDOT +MASS LOG1 LOG2 LOG3 LOG4 –MASS POWER +ENRG –ENRG DIAG (log>1 page) (log=1 page) 1st page (NUM option) (PLOT option) # pages (NUM option) (PLOT option) DP411...
  • Page 133 March 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 134 Appendix B...

  • Page 135: Appendix B: Data Records

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

  • Page 136: Option Cards Installed

    March 2008 Option Cards Installed Whenever an option card is installed in one of the Model DF868’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 137: Initial Setup Data

    March 2008 Initial Setup Data After the Model DF868 flowmeter has been installed, some initial setup data must be entered using the User Program, prior to operation. Record that information in Table B-2 below. Table B-2: Initial Setup Data General Information Model # Serial # Software Vers.
  • Page 138 March 2008 Table B-2: Initial Setup Data (Continued) SETUP-AVRG Response Time SETUP-ADVAN-KV/SS KV Input Sel Table Static Sig. Stren. Kin. Visc. KV/SS Pairs Sig. Stren. Kin. Visc. SETUP-ADVAN-MULTIK Custom Type CstV CstR K-Factor Table K-Factor Table K-Factor # Vel./Reyn. K Factor K-Factor # Vel./Reyn.
  • Page 139 Appendix C...
  • Page 140 Programming with PanaView Introduction........... . C-1 Wiring the RS232 Interface .

  • Page 141: Introduction

    March 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 DF868 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 142: Setting Up The Communications Port

    March 2008 Setting Up the Use the steps below to establish communications with the DF868. 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 143 March 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 144: Setting Up Ethernet Communications

    March 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 145: Adding The Df868

    March 2008 Adding the DF868 To add the DF868 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 146 March 2008 Adding the DF868 (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 147: Editing Meter Properties

    March 2008 Editing Meter Properties Through PanaView, you can edit the properties of your DF868. 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 148 March 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 149: Setting The Meter Clock

    March 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 150: Reading Transducer Signals

    March 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 151: Saving Transducer Signals

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

  • Page 152: Handling Site Files

    March 2008 Handling Site Files Site Files To access site files, click on the 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 153 March 2008 Saving a New Site to the To save a new site to the meter: Meter Save Site to Meter 1. Select the radio button for New and click on the button. 2. A window opens similar to Figure C-16 below. Enter the desired [OK].
  • Page 154 March 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. [OK] 3. The program asks for confirmation. Click .

  • Page 155: Changing Meter Settings

    March 2008 Changing Meter Settings Through PanaView, DF868 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 156 March 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 157 March 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 158 March 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 159 Appendix D...
  • Page 160 Foundation Fieldbus Communications Optional Measurements .........D-1 Configuration Utility Setup .

  • Page 161: Optional Measurements

    March 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 162: 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 163 March 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 164: Selecting Units For Ai Blocks

    March 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 165: Resetting Instrument Totalizers

    March 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 166: Function Block Application

    March 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 167 March 2008 Index Abbreviations, Volumetric Units ..1-10 DATA ACTIV Submenu ......4-3 Menu Map .
  • Page 168 March 2008 Index (cont.) F IN Option......1-30 Fluid Viscosity, Calculating ... . . 1-55 Entering the Submenu .
  • Page 169 March 2008 Index (cont.) On-Line Help ......1-6 RECLL Option Card Entering......1-53 Alarms .
  • Page 170 March 2008 Index (cont.) STD Submenu .....3-1 STOP SAVE Menu Map ......4-9 Entering.
  • Page 171 DECLARATION Sensing CONFORMITY Panametrics Limited Shannon Industrial Estate Shannon, County Clare Ireland declare under our sole responsibility that the DF868 Liquid Ultrasonic Flowmeter GF868 Flare Gas Ultrasonic Flowmeter GM868 Multi-Purpose Gas Ultrasonic Flowmeter GN868 Natural Gas Ultrasonic Flowmeter GS868 Steam Mass Ultrasonic Flowmeter to which this declaration relates, are in conformity with the following standards: •...
  • Page 172 DECLARATION Sensing CONFORMITE Panametrics Limited Nous, Shannon Industrial Estate Shannon, County Clare Ireland déclarons sous notre propre responsabilité que les DF868 Liquid Ultrasonic Flowmeter GF868 Flare Gas Ultrasonic Flowmeter GM868 Multi-Purpose Gas Ultrasonic Flowmeter GN868 Natural Gas Ultrasonic Flowmeter GS868 Steam Mass Ultrasonic Flowmeter rélatif á...
  • Page 173 KONFORMITÄTS- Sensing ERKLÄRUNG Panametrics Limited Wir, Shannon Industrial Estate Shannon, County Clare Ireland erklären, in alleiniger Verantwortung, daß die Produkte DF868 Liquid Ultrasonic Flowmeter GF868 Flare Gas Ultrasonic Flowmeter GM868 Multi-Purpose Gas Ultrasonic Flowmeter GN868 Natural Gas Ultrasonic Flowmeter GS868 Steam Mass Ultrasonic Flowmeter folgende Normen erfüllen: •...
  • Page 174 1100 Technology Park Drive Billerica, MA 01821-4111 Web: www.gesensing.com Ireland Sensing House Shannon Free Zone East Shannon, County Clare Ireland...

Table of Contents