How it Works
GE
Loading...
XGS868
Programming Manual
133 pgs1.6 Mb0
Table of contents
Loading...

GE XGS868 Programming Manual

GE Infrastructure
Sensing
Model XGS868
Steam Ultrasonic Mass Flow Transmitter (1 & 2 Channel)
Programming Manual
GE Infrastructure
Sensing
Model XGS868
Steam Ultrasonic Mass Flow Transmitter (1- & 2-Channel)
Programming Manual
910-196PC November 2004
November 2004
Warranty Each instrument manufactured by GE Infrastructure Sensing, Inc. is
warranted to be free from defects in material and workmanship. Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument, at the sole discretion of GE Infrastructure Sensing, Inc. Fuses and batteries are specifically excluded from any liability. This warranty is effective from the date of delivery to the original purchaser. If GE Infrastructure Sensing, Inc. determines that the equipment was defective, the warranty period is:
• one year for general electronic failures of the instrument
• one year for mechanical failures of the sensor
If GE Infrastructure Sensing, Inc. determines that the equipment was damaged by misuse, improper installation, the use of unauthorized replacement parts, or operating conditions outside the guidelines specified by GE Infrastructure Sensing, Inc., the repairs are not covered under this warranty.
The warranties set forth herein are exclusive and are in lieu of all other warranties whether statutory, express or implied (including warranties of merchantability and fitness for a particular purpose, and warranties arising from course of dealing or usage or trade).
Return Policy If a GE Infrastructure Sensing, Inc. instrument malfunctions within the
warranty period, the following procedure must be completed:
1. Notify GE Infrastructure Sensing, Inc., giving full details of the problem, and provide the model number and serial number of the instrument. If the nature of the problem indicates the need for factory service, GE Infrastructure Sensing, Inc. will issue a RETURN AUTHORIZATION number (RA), and shipping instructions for the return of the instrument to a service center will be provided.
2. If GE Infrastructure Sensing, Inc. instructs you to send your instrument to a service center, it must be shipped prepaid to the authorized repair station indicated in the shipping instructions.
3. Upon receipt, GE Infrastructure Sensing, Inc. will evaluate the instrument to determine the cause of the malfunction.
Then, one of the following courses of action will then be taken:
• If the damage is covered under the terms of the warranty, the
instrument will be repaired at no cost to the owner and returned.
• If GE Infrastructure Sensing, Inc. determines that the damage is not
covered under the terms of the warranty, or if the warranty has expired, an estimate for the cost of the repairs at standard rates will be provided. Upon receipt of the owner’s approval to proceed, the instrument will be repaired and returned.
iii
November 2004
Table of Contents
Chapter 1: Programming Site Data
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Programming Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Activating a Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Entering System Data for the Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Accessing the Channelx-System submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Selecting the Volumetric Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Selecting the Totalizer Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Selecting the Mass Flow Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Entering Transducer and Pipe Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Special Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Pipe Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Entering Zero Cutoff and Setting Up Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Zero Cutoff Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Assume Saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Steam Input Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Temperature Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Base Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Pressure Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Base Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Low Pressure Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Quality Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Entering Setup Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Set Transducer Signal Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Setting Response Time - V Averaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
Initializing Setup Parameters - Default Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Using Advanced Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Entering Global Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
Entering Global System Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Setting Up Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-24
Configuring the Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
Requesting Parameters Using MODBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
Chapter 2: Displaying and Handling Data
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Setting Up the LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Adjusting LCD Contrast and Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Clearing Totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Pausing and Restarting the Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Uploading Files to the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Deleting Files from the XGS868 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Printing Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
v
November 2004
Table of Contents (cont.)
Chapter 3: Logging Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Setting Up a Standard Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Setting Up an Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Checking the XGS868 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Stopping a Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Appendix A: Menu Maps
Appendix B: Data Records
Available Option Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Option Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Setup Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Appendix C: Remote Control Communications Unit
Using the RCCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Communications Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6
The User Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6
Accessing the User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7
Displaying Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
Setting Up the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10
RCCU Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13
Replacing the RCCU Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-14
Standard Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-14
Intrinsically-Safe Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-15
Appendix D: PanaView™ for IDM-Compatible Meters (916-086B)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
IDM-Compatible Flowmeters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
Wiring the RS232 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
Starting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
Setting Up the Communications Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3
Adding an IDM-Compatible Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5
Editing Meter Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-7
Setting the Meter Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-9
Reading Transducer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-10
Plotting Transducer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-11
Saving Transducer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-11
Clearing Totalizers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-11
Handling Site Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-12
Changing Meter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-15
vi

Chapter 1

Programming Site Data

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Programming Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Activating a Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Entering System Data for the Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Entering Transducer and Pipe Parameters . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Entering Setup Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Entering Global Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
November 2004

Introduction The Model XGS868 flow transmitter must be properly installed and

programmed, as described in the Startup Guide, before it can provide accurate flow rate measurements. After completing the installation and initial setup, use this chapter to program the advanced features of the Model XGS868’s User Program.
Step-by-step programming instructions are presented in this chapter. Also, as a programming aid, a complete set of menu maps for the SITE EDIT MENU are included in Appendix A, Menu Maps for IDM. The specific figure numbers will be referenced throughout this chapter, as required.
Refer to the appropriate section for a discussion of the following SITE EDIT MENU features.
• Channelx-Status - activate one or both channels and select the
desired measurement method.
• Channelx-System - enter the individual channel parameters.
• Channelx-Pipe Parameters - enter the pipe geometry and other
parameters.
• Channelx-Input/Output - set up the inputs and outputs.
• Channelx-Setup - set the signal limits, response times and mass
flow status.
• Global-System - select system units (English and metrics).
• Global-Input/Output - set up error handling, option cards and
display.
• Global-Comm Port - set the serial port parameters.
Note: The “x” in CHx represents the channel number. If you are
using a 1-Channel meter, only Channel 1will appear.
To get the XGS868 up and running as quickly as possible you must, as a minimum, activate the channel(s), enter channel and global system data and pipe parameters. The Procedure Options sections at the end of each menu will help you in programming the required (quick startup) and optional data.
Note: In this manual, only the programming of Channel 1 will be
described. T o pr ogram Channel 2 of a 2-channel meter , simply repeat the same procedure presented for Channel 1.
Programming Site Data 1-1
November 2004

Programming Methods There are three methods for programming the XGS868 flowmeter:

• Instrument Data Manager (IDM) - a PC-based, non-resident
software program that communicates with the XGS868 via its RS232 serial port.
• PanaView™ - a Windows-based, non-resident software program
that communicates with the XGM868 via its RS232 serial port.
• Remote Control Communications Unit (RCCU) - a hand-held
device that communicates with the XGM868 through wireless, infrared transmissions.
Note: The XGM868 cannot be programmed at the electronics
enclosure. One of the above methods must be used.
Although the actual displays differ somewhat, the general procedures are the same for all three programming methods. This chapter provides detailed IDM programming instructions. If you are using PanaView™, see Appendix D, PanaView™ for IDM-Compatible Meters and/or the PanaView™ User’s Manual (910-211) for detailed instructions. If you are using the RCCU, refer to Appendix C, Remote Control Communications Unit, for specific instructions.
Note: This manual is for instruments using software verion Y3DS or
later.
1-2 Programming Site Data
November 2004

Activating a Channel The Channelx-Status submenu permits selection of the desired

measurement method. In addition, it is used to activate/deactivate one or both of the channels in a 2-Channel Model XGS868.
While following the programming instructions, refer to Figure A-1 in Appendix A.
To access the Channelx-Status submenu:
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select Status.
4. Select Burst to activate the channel/path and press Next Item/
Enter.
Note: Burst is automatically selected for a 1-Channel meter.
5. Use the pull-down menu to select one of the measurement
methods described below and press Next Item/Enter.
• Skan Only is the preferred technique for locating the acoustic
signal and for high velocity measurements. It is more robust in a noisy environment than the Measure technique.
• Skan/Measure is the preferred technique to use for low
velocity measurements.
If Skan Only is selected at the above prompt, the meter uses this technique exclusively. However, if Skan/Measure is selected, the meter uses Skan Only to find the acoustic signal and then tries to use the Skan/Measure technique for the actual measurement.
Note: To change the Skan Only and Skan/Measure parameters, see
Signal submenu section on page 1-15 of this chapter.
the
Procedure Options After completing the above step, IDM returns to the Channel
PROGRAM window. Do one of the following:
• To continue entering “quick startup” data, proceed to Step 3 in
the following section.
• To continue regular programming, refer to Appendix A, Menu
Maps, to navigate to the desired menu.
• To leave the User Program, press Exit Page twice.
Programming Site Data 1-3
November 2004

Entering System Data for the Channel

Accessing the Channelx­System submenu
Selecting the Volumetric Units
The Channelx-System submenu is used to enter system parameters for the channel. While following the programming instructions, refer to Figure A-1 in Appendix A.
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select System.
4. Key in the desired Channel Label (up to 5 characters) and press
Next Item/Enter.
5. Key in the desired Site/Channel Message (up to 21 characters) and press Next Item/Enter.
1. Use the pull-down menu to select the desired volumetric units for the flow rate display and press Next Item/Enter. Available units are listed in Table 1-1 below.
2. Use the pull-down menu to select the desired time units for the flow rate display and press Next Item/Enter.
3. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the volumetric flow rate display and press Next Item/Enter.
Table 1-1: Available Volumetric/Totalizer Units
English Metric
Actual Cubic Feet Actual Cubic Meters
Thousands of ACF Thousands of ACM
Millions of ACF Millions of ACM
Standard Cubic Feet Standard Cubic Meters
Thousands of SCF Thousands of SCM
Millions of SCF Millions of SCM
1-4 Programming Site Data
November 2004
Selecting the Totalizer Units
Selecting the Mass Flow Units
1. Use the pull-down menu to select the desired units for the totalized flow rate display and press Next Item/Enter. Available units are listed in Table 1-1 on the previous page.
2. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the totalized flow rate display and press Next Item/Enter.
3. Do one of the following:
• If MASS FLOW is ON, proceed to Selecting the Mass Flow
Units below.
• If MASS FLOW is OFF, the meter returns to the Channel
PROGRAM window. Go to Procedure Options on the following
page.
Note: To activate mass flow, refer to page 1-20.
1. Use the pull-down menu to select the desired mass flow units for
the flow rate display and press Next Item/Enter. The available units for this prompt are determined by the selection made at System Units. See Table 1-2 below.
Table 1-2: Available Mass Flow Units
English Metric
Pounds Kilograms
Thousands of LB Metric Tons (1000 KG)
Millions of LB
Tons (2000 LB)
2. Use the pull-down menu to select the desired time units for the mass flow rate display and press Next Item/Enter.
3. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the mass flow rate display and press Next Item/Enter.
4. Use the pull-down menu to select the desired units for the totalized mass flow rate display and press Next Item/Enter. The available units for this prompt are determined by the selection made at System Units.
5. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the totalized mass flow rate display and press Next Item/Enter.
Programming Site Data 1-5
November 2004
Procedure Options After completing the above steps, IDM returns to the Channel
PROGRAM window. Do one of the following:
• T o continue entering “quick startup” data, continue to Step 3 in
Entering Transducer and Pipe Parameters on the next page.
• To continue regular programming, refer to Appendix A, Menu
Maps, to navigate to the desired menu.
• To leave the User Program, press Exit Page twice.
1-6 Programming Site Data
November 2004

Entering Transducer and Pipe Parameters

Enter the transducer and pipe parameters via the Pipe Parameters submenu. While following the programming instructions, refer to Figure A-1 in Appendix A.
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select Pipe Parameters.
4. Do one of the following:
• Standard transducers: enter the number engraved on the
transducer head, then use the pull-down menu to select Standard and press Next Item/Enter. Proceed to Pipe Data on the next page.
• Special transducers: use the pull-down menu to select Special
and press Next Item/Enter. Proceed to Special Transducers below.
IMPORTANT: Special transducers have no engraved number on the
head and are rarely used. Examine the transducer head carefully for a number.
Special Transducers 1. Assign a number between 91 and 99 for the special transducer and
press Next Item/Enter.
2. Use the pull-down menu to select the transducer frequency (supplied by the factory) and press Next Item/Enter.
Note: The frequency is requir ed to transmit an excitation voltage at
the transducer’s natural frequency.
3. Enter the special transducer time delay value (supplied by the factory) and press Next Item/Enter.
Tw is the time required for the transducer signal to travel through the transducer and its cable. This time delay must be subtracted from the transit times of the upstream and downstream transducers to ensure an accurate measurement.
Programming Site Data 1-7
November 2004
Pipe Data If a standard transducer is being used, the programming sequence
should be rejoined at this point.
1. Enter the known pipe outside diameter or circumference, then use the pull-down menu to select the units. Press Next Item/Enter.
Obtain the required information by measuring either the pipe outside diameter (OD) or circumference at the transducer installation site. The data may also be obtained from standard pipe size tables found in Sound Speeds and Pipe Size Data manual (914-004). Available units are shown in Table 1-3 below.
Table 1-3: Available Pipe OD Units
English Metric
pipe OD in inches pipe OD in millimeters pipe OD in feet pipe OD in meters pipe circumference in inches pipe circumference in millimeters pipe circumference in feet pipe circumference in meters
2. Enter the know thickness of the pipe wall and press Next Item/ Enter. If the pipe wall thickness is not available, look up the value
in a table of standard pipe size data which can be found in Sound Speeds and Pipe Size Data manual (914-004).
IMPORTANT: Because the units cannot be independently chosen for
this parameter, the value must be entered in the same units used for the pipe OD.
3. Enter the path length of the ultrasonic signal, then use the pull­down menu to select the units. Press Next Item/Enter.
Note: If a spoolpiece was ordered with the meter, the transducer
signal path length
(P) and the transducer signal axial length (L)
are engraved on the flowcell and/or are included in the documentation supplied with the meter. For on-site transducer installations, refer to Appendix C, Measuring P and L Dimensions, in the Startup Guide for instructions.
1-8 Programming Site Data
November 2004
Pipe Data (cont.) 4. Enter the axial length of the ultrasonic signal, then use the pull-
down menu to select the units. Press Next Item/Enter.
5. Use the pull-down menu to select the fluid type and press Next Item/Enter. Then do one of the following:
• If OTHER was selected - proceed to Step 6.
• If STEAM was selected - proceed to Step 7.
6. Enter the speed of sound (in feet per second) in the gas to be measured and press Next Item/Enter.
7. Enter a value for the flow calibration factor and press Next Item/ Enter. The default value is 1.00, but values between 0.50 and 2.0
may be entered.
Procedure Options After entering the Calibration Factor, IDM returns to the Channel
PROGRAM
. Do one of the following:
• To continue entering “quick startup” data, press EXIT PAGE once
and proceed to Step 2 in Entering Global System Data on page 1-21
.
• To continue regular programming, refer to Appendix A, Menu
Maps, to navigate to the desired menu.
• To leave the User Program, press the EXIT PAGE key twice.
Programming Site Data 1-9
November 2004

Entering Zero Cutoff and Setting Up Inputs

Enter the zero cutoff value and set up the temperature, pressure and quality inputs via the these parameters, refer to Figure A-1 in Appendix A.
IMPORTANT: If an option card in
Input/Output submenu. While programming
Slot 1 fails to appear in this menu,
it may be turned
Options
section on page 1-26 for setup instructions.
Off. See the Global-Input/Output-
Zero Cutoff Value Near a zero flow rate, the Model XGS868 ’s readings may fluctuate
due to small offsets caused by thermal drift or similar factors. To force a zero display reading when there is minimal flow, enter a zero cutoff value as described below.
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select Input/Output.
4. Enter a value from 0 to 1 ft/sec (0 to 0.30 m/sec) for the zero
cutoff and press Next Item/Enter. The recommended setting is 0.1 ft/sec (0.03 m/sec).
Assume Saturation This prompt permits you to use a single input for either temperature
or pressure to measure mass flow. The User Pr ogram contains a ta ble that correlates pressure and temperature for saturated steam. If the meter can assume the steam is always at or near saturation, then only a temperature or pressure input is needed. The meter will interpolate the corresponding pressure or temperature.
1. Use the pull-down menu to select whether you will assume saturation or not and press Next Item/Enter. Proceed to one of the following sections:
• If you selected Yes - proceed to Steam Input Type on the next
page.
• If you selected No - proceed to Temperature Input on the next
page.
1-10 Programming Site Data
November 2004
Steam Input Type Use the next prompt to select which type of input will be used to
measure mass flow.
1. Use the pull-down menu to select the type of input that will be used to measure mass flow and press Next Item/Enter. Proceed to one of the following sections:
• If you selected Temperature - proceed to T emperature Input on
the next page.
• If you selected Pressure - proceed to Base Temperature on the
next page.
IMPORTANT: GE Infrastructure Sensing recommends using a live
input for either temperature or pressure when assuming the saturation.
Temperature Input The Model XGS868 can use either a fixed temperature value or a live
temperature input to calculate the steam density for the mass flow rate display.
1. Use the pull-down menu to select a fixed temperature value or to set up the option card in Slot 1 that will supply the live temperature input and press Next Item/Enter.
Note: If Slot 1 contains an activated option card with an analog
input assigned to as an option at the above prompt. If the pr ocess temperatur e is stable, a fixed value may be used, but most applications require a live temperature input.
If there is no active option card for temperature, the meter assumes you are using a fixed temperature.
2. Proceed to one of the following sections:
Temperature or an RTD input, Slot 1 appears
• If you selected Fixed - proceed to Step 3.
• If you selected Slot 1 - proceed to Step 4.
3. Enter the know fixed process temperature and press Next Item/ Enter. The meter will accept values from -328° to 1832°F
o
(-200 to 1000
4. Use the pull-down menu to set up input A or input B and press Next Item/Enter. The inputs were lab eled du ring setup.
C). Proceed to Base Temperature on the next page.
Note: The set up of input A is used as an example. Identical
procedures would be used to set up input B.
Programming Site Data 1-11
November 2004
Base Temperature 1. Enter the base temperature and press Next Item/Enter. The ratio of
this value to the actual temperature is used to calculate the standard mass flow rate.
2. Do one of the following:
• If you selected No at Assume Saturation, proceed to Pressure
Input below.
• If you selected Pressure as the Steam Input Type, proceed to
Pressure Input below.
• If you selected Temperature as the Steam Input Type, procee d
to Base Pressure below.
Pressure Input 1. Use the pull-down menu to select a fixed pressure value or to set
up the option card in Slot 1 that will supply the live pressure input and press Next Item/Enter.
Note: If Slot 1 contains an activated option card with an input
assigned to prompt. If the process pressure is stable, a fixed value may be used, but most applications require a live pressure input.
Pressure, Slot 1 appears as an option at the above
If there is no active option card for pressure, the meter assumes you are using a fixed pressure.
2. Proceed to one of the following sections:
• If you selected Fixed - proceed to Step 3.
• If you selected Slot 1 - proceed to Step 4.
3. Enter the known fixed process pressure and press Next Item/ Enter. The meter will only accept values from 0 to 5000 psia.
Proceed to Base Pressure below.
4. Use the pull-down menu to set up input A or input B and press Next Item/Enter. The inputs were labeled du ring setup.
Note: The set up of input A is used as an example. Identical
procedures would be used to set up input B.
Base Pressure Enter the base pressure and press Next Item/Enter. The ratio of this
value to the actual pressure is used to calculate the standard mass flow rate.
1-12 Programming Site Data
November 2004
Low Pressure Switch 1. Use the pull-down menu to activate or deactivate the low pressure
switch software function and press Next Item/Enter.
2. Proceed to one of the following sections:
• If you selected Yes - proceed to Step 3.
• If you selected No - proceed to Quality Input below.
3. Enter the low pressure switch set point and press Next Item/Enter. The acceptable range is 0 to 5000 psia. The meter will stop taking readings if the pressure drops below this value.
Quality Input When the temperature and pressure inputs indicate that the steam is
saturated, the calculations. Unless a different value is accurately known, accept the default value at the following prompt:
Note: The quality value indicates what fraction of the fluid is in the
Quality Input value is used for the mass flow rate
gas phase. The remaining fraction is assumed to be liquid water. Thus, a quality value of 1.0 indicates 100% gas.
1. Use the pull-down menu to select a fixed steam quality value or to set up the option card in Slot 1 that will supply the live steam quality input and press Next Item/Enter.
Note: If Slot 1 contains an activated option card with an analog
input that has been programmed as an option at the above prompt. Normally, a fixed value of 1.0 (100% steam) should be used for the steam quality value.
If there is no active option card for a special input, the meter assumes you are using a fixed quality value.
2. Proceed to one of the following sections:
Special, Slot 1 appears as
• If you selected Fixed - proceed to Step 3.
• If you selected Slot 1 - proceed to Step 4.
3. Enter the known fixed steam quality and press Next Item/Enter. (The meter will accept values from 0.0000 to 1.0000.) Go to Procedure Options of the following page.
4. Use the pull-down menu to set up input A or input B and press Next Item/Enter. The inputs were lab eled du ring setup.
Note: The set up of input A is used as an example. Identical
procedures would be used to set up input B.
Programming Site Data 1-13
November 2004
Procedure Options After completing the above steps, IDM returns to the Channel
PROGRAM window. Do one of the following:
• To continue programming, refer to Appendix A, Menu Maps
for IDM, to navigate to the desired menu.
• To leave the User Program, press Exit Page twice.
1-14 Programming Site Data
November 2004

Entering Setup Data The signal limits, response times, mass flow and multi K factors for

the Model XGS868 are specified via the following four submenus are included in this section:
Setup submenu. The
• Signal - set the parameters related to the transducer signal
(see below).
• V averaging - specify the response of the meter to step changes
(page 1-18).
• Default Setup - reset all parameters to default values (page 1-18)
• Advanced Features - enable mass flow and enter K factors
(page 1-19).
While following the programming instructions, refer to Figure A-2 in Appendix A. Record all programmed data in Appendix B, Data Records.
Set Transducer Signal Settings
Use this option to set the limits for the incoming signal and other parameters affecting the transducer signal. For example, the programmed signal strength low limit may be used to determine the trigger point for an alarm.
Caution!
The Signal default settings are suitable for most
applications. Consult the factory before
changing any of these parameters.
Only after consulting the factory, complete the following steps to program the signal parameters:
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select Set up.
4. Select Signal.
5. Use Table 1-4 on the next page to choose the desired values. Enter
or select a value and press Next Item/Enter.
Procedure Options After completing the above steps, IDM returns to the Channel SET UP
window. Do one of the following:
• T o continue programming, refer to Appendi x A, Menu Maps, to
navigate to the desired menu.
• To leave the User Program, press Exit Page three times.
Programming Site Data 1-15
November 2004
Set Transducer Signal Settings (cont.)
Transducer
Signal
Parameters Range
Signal Low
Limit
Correlation
Peak Limit
Soundspeed
+- Limit
Velocity Low
Limit
Velocity High
Limit
Acceleration
Limit
Amplitude
Discriminator
Low
Amplitude
Discriminator
High
-20 to 100 20
0 to 500 100
1 to 50% 20%
-500 to
500 ft/sec
(-150 to
150 m/sec)
-500 to 500 ft/sec (-150
to 150 m/
sec)
0 to 250ft/s (0 to 76m/s)
0 to 100 14
0 to 100 34
Table 1-4: Transducer Signal Settings
Default
Value Miscellaneous Information
The E1:LOW SIGNAL error message appears when the signal strength falls below the programmed SIGNAL LOW LIMIT value. See Chapter 2, Error Codes, in the Service Manual for a discussion of error codes.
The E4: SIGNAL QUALITY error message appears when the signal quality falls below the programmed COR. PEAK LIMIT value. See Chapter 2, Error Codes, in the Service Manual for a discussion of error codes
The E2:SOUNDSPEED error message appears when the calculated fluid sound speed differs from the fluid sound speed entered in the Channelx-System menu by more than the programmed SOUNDSPEED +- LIMIT value. See Chapter 2, Error Codes, in the Service Manual for a discussion of error codes.
The E3: VELOCITY RANGE error messages appears when
-75.0 ft/sec (-23 m/sec)
75.0 ft/sec (23 m/sec)
50 ft/s
(15 m/s)
the calculated fluid velocity is less than the programmed VELOCITY LOW LIMIT value. See Chapter 2, Error Codes, in the Service Manual for a discussion of error codes.
The E3: VELOCITY RANGE error messages appears when the calculated fluid velocity exceeds the programmed VELOCITY HIGH LIMIT value. See Chapter 2, Error Codes, in the Service Manual for a discussion of error codes.
The E6: CYCLE SKIP error message appears when the calculated fluid velocity changes by more than the programmed ACCELERATION LIMIT value from one reading to the next. See Chapter 2, Error Codes, in the Service Manual for a discussion of error codes.
The amplitude discriminator measures the transducer signal received by the XGS868. The default value for this parameter is 14, and values from 0 to 100 are acceptable. The E5: AMPLITUDE error message appears when the amplitude discriminator falls below the programmed AMP. DISCRIM LOW value. See Chapter 2, Error Codes, in the Service Manual for a discussion of error codes.
The amplitude discriminator measures the transducer signal received by the Model XGS868. The default value for this parameter is 34. Values from 0 to 100 are acceptable. The E5: AMPLITUDE error message appears when the amplitude discriminator exceeds the programmed AMP. DISCRIM HIGH value. See Chapter 2, Error Codes, in the
Service Manual for a discussion of error codes.
1-16 Programming Site Data
Table 1-4: Transducer Signal Settings
Transducer
Signal
Parameters Range
Delta T Offset
-1000 to
Default
Value Miscellaneous Information
0 msec
1000 msec
Skan T Offset
–500 to
500 msec
58 msec
% of Peak 1 to 100% 50%
Xmit Sample
Size
M>S Switch
2, 4, 8, 16
or 32
0 to 250
50 msec
msec
# Shifts 0 to 10 3
A Divisor 0.1 to 10 2.5
# Transmit
1 to 16 4
Pulses
T Window
0 to 1000 0
(cycles)
R Window
10 to 128 10
(cycles)
November 2004
An offset between the upstream and downstream transit times is specified at this prompt.
At this prompt, specify a time measurement offset that compensates for a shift resulting from cross-correlation.
The percentage of peak used to calculate the transit times and Delta T is specified at this prompt.
Both the upstream and downstream transducers transmit ultrasonic pulses in bursts, which consist of a series of
8
transmit pulses. XMIT SAMPLE SIZE determines how many bursts are sent in one direction before sending in the other direction.
If the burst mode is set to Skan/Measure (S/M), the meter switches from Skan to Measure Mode when Delta T is less than the M>S_Switch value. DO NOT change this value unless advised by the factory.
The number of shifts corresponds to the actual number of transmits per cycle (number of signals added together in one direction to produce an averaged signal for one interrogation of the fluid) and need only be changed if the environment is very noisy or the acoustic signal is weak.
The Divisor used to calculate the Measure Mode integrated threshold level is not normally changed.
# Transmit Pulses specifies the number of pulses in a burst. For difficult conditions (i.e. long paths, high velocity or high temperature), settings as high as 16 may be necessary.
The XGS868 calculates the size of the transmit window based on pipe size and fluid sound speed. However, for special diagnostic purposes, it is possible to reset the window size.
The XGS868 calculates the size of the receive window based on pipe size and fluid soundspeed. However, for special diagnostic purposes, it is possible to reset the window size.
Programming Site Data 1-17
November 2004
Setting Response Time - V Averaging
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. Complete the following steps to set the response time:
IMPORTANT: Do not change this number unless instructed to do so
by GE Infrastructure Sensing personnel.
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select Set up.
4. Select V Averaging.
5. Select the response time (in seconds ) from the pull-down menu
and press Next Item/Enter. For best results, select 30 to ensure the most stable signal.
Procedure Options After completing the above steps, IDM returns to the Channel SET UP
window. Do one of the following:
• To continue programming, refer to Appendix A, Menu Maps
for IDM, to navigate to the desired menu.
• To leave the User Program, press Exit Page three times.
Initializing Setup Parameters - Default Setup
Procedure Options After completing the above steps, IDM returns to the Channel Set up
Use this option to initialize (reset) all of the parameters within the Set
up
menu to their default values. Complete the following steps to reset
all of the parameters:
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select Set up.
4. Select Default Setup.
5. Select Yes to initialize parameters or No to abort this command.
window. Do one of the following:
• To continue programming, refer to Appendix A, Menu Maps
for IDM, to navigate to the desired menu.
• To leave the User Program, press Exit Page three times.
1-18 Programming Site Data
November 2004
Using Advanced Features This option enables you to access the more advanced features of the
meter. In this option you can do the following:
• enter a table of K factors - that compensates for non-linear flow
rates (see below).
• enable mass flow - calculated for static fluid density (on the
next page).
Entering Multiple K Factors 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) that compensates for non-linear flow rates. The meter accepts from 2 to 20 pairs. Complete the following steps to enter multiple K factors for velocity values:
Note: The factors are supplied by the factory; without them the
K-factor table cannot be edited.
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Channelx.
3. Select Set up.
4. Select Advanced Features.
5. Select Multiple K Factors.
6. Use the pull-down menu to select whether to activate or deactivate
multiple K factors and press Next Item/Enter.
Note: If you select Off, go to Procedure Options on the following
page.
7. Use the pull-down menu to select whether to edit the table and press Next Item/Enter.
Note: If you select No, go to Procedure Options on the next page.
Editing K Factors 1. Enter the number of K factors (2 to 20) in the table and press Next
Item/Enter.
2. Enter the velocity value for K-factor number “X” and press Next Item/Enter.
Note: When editing the K-factor table, the velocities must be entered
in increasing order.
3. Enter the K-factor corresponding to velocity number “X” (0.333 to 3.0) and press Next Item/Enter.
4. Repeat Steps 2 and 3 for each pair of values.
Programming Site Data 1-19
November 2004
Procedure Options After completing the above steps, IDM returns to the Advanced
Features window. Do one of the following:
• T o continue programming, refer to Appendi x A, Menu Maps, to
navigate to the desired menu.
• To leave the User Program, press Exit Page four times.
Activating Mass Flow Use this option to calculate mass flow from a static fluid density.
Complete the following steps to enter the static density of the fluid:
IMPORTANT: The Model XGS868 calculates the actual steam
density from the live or fixed temperature and pressure inputs, as programmed in the menu. However, setting the prompt to density entered at the following prompt to calculate mass flow.
1. Open the SITE EDIT MENU from the Edit Functions menu.
Yes overrides this value and uses the
Mass flow calculation
Input/Output
2. Select Channelx.
3. Select Set up.
4. Select Advanced Features.
5. Select Mass flow calculation.
6. Use the pull-down menu to select whether activate or deactivate
mass flow (mass flow is calculated from a static density) and press Next Item/Enter.
Note: If you select No, go to Procedure Options below.
7. Enter the fluid density and press Next Item/Enter.
Procedure Options After completing the above steps, IDM returns to the Advanced
Features window. Do one of the following:
• T o continue programming, refer to Appendi x A, Menu Maps, to
navigate to the desired menu.
• To leave the User Program, press Exit Page four times.
1-20 Programming Site Data
November 2004

Entering Global Data The Global menu is used to enter information that is not specific to

any of the individual channels. Information programmed via this menu is used to compute parameters such as the sum, difference or average of the channel 1 and channel 2 signals (for a 2-Channel meter). In addition, several general system parameters may be entered
Global menu.
in the
IMPORTANT: When calculating the sum, difference or average
readouts, data from the used. Any conflicting data entered in the
System
submenu is overridden.
Global-System submenu is
Channelx-
Entering Global System Data
The following submenus are included in the
Global menu:
• System - use to specify the units of measure used in calculations
(see below).
• Input/Output - used to set up error handling and to configure analog
inputs and outputs (see page 1-24).
• Communication Port- used to set up the serial communications port
(see page 1-36).
Based on the selection made above, proceed to the appropriate section of this chapter for instructions. While following the programming instructions, refer to Figure A-3 in Appendix A. Remember to record all programmed data in Appendix B, Data Records.
This menu enables you to select system units that the XGS868 will use when channel data is added, subtracted or averaged together.
1. Open the SITE EDIT MENU from the Edit Functions menu.
2. Select Global.
3. Select System.
4. Enter the desired meter message (up to 21 characters) and press
Next Item/Enter.
5. Use the pull-down menu to display measurements in English units or metric units and press Next Item/Enter.
6. Use the pull-down menu to select the desired pressure units (absolute or gauge) and press Next Item/Enter.
7. Do one of the following:
• 1-Channel meter, go to Procedure Options on page 1-23.
• 2-Channel meter, proceed to Selecting Volumetric Units on the
next page.
Programming Site Data 1-21
November 2004
Selecting the Volumetric Units
1. Use the pull-down menu to select the desired volumetric units for the flow rate display and press Next Item/Enter. Available units are listed in Table 1-5 below.
Table 1-5: Available Volumetric/Totalizer Units
English Metric
Actual Cubic Feet Actual Cubic Meters
Thousands of ACF Thousands of ACM
Millions of ACF Millions of ACM
Standard Cubic Feet Standard Cubic Meters
Thousands of SCF Thousands of SCM
Millions of SCF Millions of SCM
2. Use the pull-down menu to select the desired time units for the flow rate display and press Next Item/Enter.
3. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the volumetric flow rate display and press Next Item/Enter.
Selecting the Totalizer Units
1. Use the pull-down menu to select the desired units for the totalized flow rate display and press Next Item/Enter. Available units are listed in Table 1-5 above.
2. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the totalized flow rate display and press Next Item/Enter.
3. Do one of the following:
• If MASS FLOW is ON, proceed to Selecting the Mass Flow
Units below .
• If MASS FLOW is OFF, the meter returns to the Channel
PROGRAM window. Go to Procedure Options on the following
page.
Note: To activate mass flow, refer to page 1-20.
1-22 Programming Site Data
November 2004
Selecting the Mass Flow Units
1. Use the pull-down menu to select the desired mass flow units for the flow rate display and press Next Item/Enter. The available units for this prompt are determined by the selection made at System Units. See Table 1-6 below.
Table 1-6: Available Mass Flow Units
English Metric
Pounds Kilograms
Thousands of LB Metric Tons (1000 KG)
Millions of LB
Tons (2000 LB)
2. Use the pull-down menu to select the desired time units for the mass flow rate display and press Next Item/Enter.
3. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the mass flow rate display and press Next Item/Enter.
4. Use the pull-down menu to select the desired units for the totalized mass flow rate display and press Next Item/Enter. The available units for this prompt are determined by the selection made at System Units.
5. Use the pull-down menu to select the desired number of digits to the right of the decimal point in the totalized mass flow rate display and press Next Item/Enter.
Procedure Options After completing the above steps, IDM returns to the Global
PROGRAM window. Do one of the following:
• T o continue programming, refer to Appendi x A, Menu Maps, to
navigate to the desired menu.
• To leave the User Program, press Exit Page twice.
Programming Site Data 1-23
Loading...
+ 103 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use