GE Sensing XGS868i Operating Manual
GE
Measurement & Control Gas Analysis
DigitalFlow™ XGS868i
Panametrics Steam Ultrasonic Mass Flow Transmitter
(1 & 2 Channel)
Programming Manual
910-196P Rev. G
February 2015
DigitalFlow™ XGS868i
Panametrics Steam Ultrasonic Mass Flow Transmitter
(1 & 2 Channel)
Programming Manual
910-196P Rev. G
February 2015
www.ge-mcs.com
©2015 General Electric Company. All rights reserved.
Technical content subject to change without notice.
[no content intended for this page]
Preface
Information Paragraphs
Note: These paragraphs provide information that provides a deeper understanding of the situation, but is not
essential to the proper completion of the instructions.
IMPORTANT: These paragraphs provide information emphasizing instructions which are essential to proper setup of
the equipment. Failure to follow these instructions carefully may cause unreliable performance.
WARNING! Indicates a potentially hazardous situation which can result in serious personal
injury or death, if it is not avoided.
CAUTION! Indicates a potentially hazardous situation which can result in minor or moderate
injury to personnel or damage to the equipment, if it is not avoided.
HIGH VOLTAGE! This symbol indicates the presence of high voltage. It calls your attention to
situations or operations that could be dangerous to you and other persons operating the
equipment. Read these messages and follow the instructions carefully.
Safety Issues
WARNING! It is the responsibility of the user to make sure all local, county, state and national
codes, regulations, rules and laws related to safety and safe operating conditions are met for
each installation.
Auxiliary Equipment
Local Safety Standards
The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards,
regulations, or laws applicable to safety.
Working Area
WARNING! Auxiliary equipment may have both manual and automatic modes of operation. As
equipment can move suddenly and without warning, do not enter the work cell of this equipment
during automatic operation, and do not enter the work envelope of this equipment during
manual operation. If you do, serious injury can result.
WARNING! Make sure that power to the auxiliary equipment is turned OFF and locked out
before you perform maintenance procedures on the equipment.
DigitalFlow™ XGS868i Programming Manual iii
Preface
Qualification of Personnel
Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.
Personal Safety Equipment
Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary equipment.
Examples include safety glasses, protective headgear, safety shoes, etc.
Unauthorized Operation
Make sure that unauthorized personnel cannot gain access to the operation of the equipment.
Environmental Compliance
Waste Electrical and Electronic Equipment (WEEE) Directive
GE Measurement & Control is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE)
take-back initiative, directive 2012/19/EU.
The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural
resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle most of the
materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information on the collection, reuse and recycling systems, please contact your local or regional
waste administration.
Visit
http://www.ge-mcs.com/en/about-us/environmental-health-and-safety/weee.html for take-back instructions and
more information about this initiative.
iv DigitalFlow™ XGS868i Programming Manual
Contents
Chapter 1. Programming Site Data
1.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Programming Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.3 The XGS868i Enclosure Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.4 Activating a Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.5 Entering System Data for the Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.5.1 Accessing the Channelx-System Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.5.2 Selecting Volumetric Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.5.3 Selecting Totalizer Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.5.4 Selecting Mass Flow Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.6 Entering Transducer and Pipe Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.6.1 Special Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.6.2 Pipe Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.7 Entering Zero Cutoff and Setting Up Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7.1 Zero Cutoff Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7.2 Assume Saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7.3 Steam Input Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7.4 Temperature Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.7.5 Base Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.7.6 Pressure Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.7.7 Base Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.7.8 Low Pressure Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.7.9 Quality Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.8 Entering Setup Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.8.1 Setting Transducer Signal Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.8.2 Initializing Setup Parameters - Default Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.8.3 Setting Response Time - V Averaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.8.4 Using Advanced Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.9 Entering Global Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.9.1 Entering Global System Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.9.2 Setting Up Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.9.3 Configuring the Communications Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
1.9.4 Requesting Parameters Using MODBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
1.9.5 Activating Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
1.10 Exiting the User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
DigitalFlow™ XGS868i Programming Manual v
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Chapter 2. Displaying Data
2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
2.2 Displaying Data with the LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
2.2.1 Adjusting LCD Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
2.2.2 Programming the LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
2.3 Displaying Data on a Computer Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
2.3.1 Preparing for PanaView Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
2.3.1 The Text Display Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
2.3.2 The Graphing Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
2.3.3 Displaying Transducer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Chapter 3. Logging Data
3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
3.2 The Data Logging Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
3.3 Logging via PanaView . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
3.4 Creating Meter Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
3.4.1 Creating a Standard Meter Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
3.4.2 Creating an Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
3.4.3 Checking Log Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
3.4.4 Stop Logging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
3.5 Creating PC Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
3.6 Viewing Meter Log Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
3.7 Viewing PC Log Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Chapter 4. Printing Data
4.1 Data Types for Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Chapter 5. Clearing Data
5.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
5.2 Clearing the XGS868i’s Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
5.2.1 Clearing Site Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
5.2.2 Clearing Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
5.2.3 Clearing the Totalizers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Appendix A. Menu Maps
Appendix B. Data Records
B.1 Available Option Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
B.2 Option Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
B.3 Setup Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
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Appendix C. Programming the XGS868i Using PanaView™
C.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
C.2 Programming with PanaView™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
C.2.1 Preparing for PanaView Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
C.2.2 Setting Up the Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
C.2.3 Setting up Ethernet Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
C.2.4 Modifying Ethernet Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
C.3 Adding the XGS868i. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
C.4 Entering the User Program using PanaView. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
C.5 Entering Data in the Channel Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
C.5.1 Selecting the Channel Measurement Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
C.5.2 Entering Data in the Channel System Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
C.5.3 Entering Pipe Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
C.5.4 Entering Input/Output Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
C.5.5 Entering Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
C.6 Entering Data in the Global Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
C.6.1 Entering Global-System Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
C.6.2 Setting Up Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
C.6.3 Entering Communications Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
C.7 Exiting the Site Edit Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
C.8 Saving Site Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
C.8.1 Saving Current Site Data to the Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
C.8.2 Saving New Site Data to the XGS868i. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
C.8.3 Saving a Site to the PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
C.8.4 Clearing a Site from the Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
C.8.5 Saving Site Data in Text Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Appendix D. PanaView Menu Maps for the XGS868i
Appendix E. Foundation Fieldbus Communications
E.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
E.2 Configuration Utility Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
E.3 Selecting the Desired Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
E.4 Selecting Units for AI Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
E.5 Resetting Instrument Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
E.6 Function Block Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Appendix F. Foundation Fieldbus Tables
DigitalFlow™ XGS868i Programming Manual vii
Contents
viii DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
Chapter 1. Programming Site Data
1.1 Introduction
The Model XGS868i 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 XGS868i’s Keypad Program.
Step-by-step programming instructions are presented in this chapter. Also, as a programming aid, a complete set of
menu maps for the XGS868i are included in Appendix A, Menu Maps. The specific figure numbers will be referenced
throughout this chapter, as required.
Refer to the appropriate section for a discussion of the following Keypad Program features.
• Channelx-ACTIV - activate one or both channels and Scroll to the desired measurement method.
• Channelx-SYSTM - enter the individual channel parameters.
• Channelx-PIPE - enter the pipe geometry and other parameters.
• Channelx-I/O - set up the inputs and outputs.
• Channelx-SETUP - set the signal limits, response times and mass flow status.
• Global-SYSTM - Scroll to system units (English or metric).
• Global-I/O - set up error handling, option cards and the display.
• Global-COMM - set the serial port parameters.
Note: The “x” in CHx represents the channel number. If you are using a 1-Channel meter, only CH1 will appear.
To get the XGS868i up and running as quickly as possible you must, as a minimum, activate the channel(s), enter the
channel and global system data and the pipe parameters. The Procedure Options section 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. To program Channel 2 of a 2-channel
meter, simply repeat the same procedure presented for Channel 1.
DigitalFlow™ XGS868i Programming Manual 1
Chapter 1. Programming Site Data
1.2 Programming Methods
You can program the XGS868i via either the keypad on the lower part of the glass enclosure, or PanaView™, a
PC-based, non-resident software program that communicates with the XGS868i via its RS232 serial port. PanaView
supplements basic XGS868i functions with several additional capabilities. With PanaView, you can:
• load and save site file data
• create and save graph and log files
• display text output and graphs of live measurement data
• create custom templates for displaying text, graph and log data
• interface with multiple GE Measurement & Control instruments.
Although the actual displays differ somewhat, the general procedures are the same for all three programming methods.
This chapter provides detailed programming instructions for use with the keypad. If you are using PanaView™, see
Appendix C, Programming the XGS868i via PanaView™, and/or the PanaView™ User’s Manual (910-211) for
detailed instructions.
IMPORTANT: This manual is for instruments using software version Y4AS or later.
2 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.3 The XGS868i Enclosure Keypad
Keypad Program
Along with the 2-line, 16-character LCD, the XGS868i includes a 6-key magnetic keypad. The decal cutout for each
key contains a hall effect sensor, pushbutton switch and visible red LED. The magnetic wand used to activate a
magnetic key is found attached to the meter chassis below the front panel. An operator activates the key by pressing the
magnetic wand up to the glass lid over the desired key. The LED will light indicating a successful key press.
Note: The pushbutton switch will also act as a key press but is done with the glass lid open. Do not use the
pushbutton switch in a hazardous area where the lid needs to be installed.
Use the magnetic keypad to navigate through the user program. The menu map may be followed in sequence, or the
four arrow keys may be used to scroll through the prompt screens. Figure 1 shows the front of the XMT868i, with
magnetic keypad and magnetic wand.
DigitalFlowTM XGS868i
ENTE RESCA PE
Magnetic Wand
Figure 1: XGS868i Magnetic Keypad and Wand
IMPORTANT: The XGS868i’s keypad permits programming of the instrument through the glass faceplate without
removing the cover. Thus, all programming procedures may be performed while the unit is installed in a
hazardous area.
Six keys on the keypad enable users to program the XGS868i:
• [Enter] - confirms choice of a specific option and data entry within the option
• [Escape] - allows users to exit from a specific option without entering unconfirmed data
• [] and [] - enable users to highlight a specific window in the display option or to scroll through a list of options
(parameters, letters, and numbers 0-9 as well as the negative sign and decimal point) in a menu
• [] and [] - enable users to scroll to a specific option, among choices in an option, or to a character in a text
entry.
DigitalFlow™ XGS868i Programming Manual 3
Chapter 1. Programming Site Data
1.3 The XGS868i Enclosure Keypad (cont.)
When you power up the XGS868i, the display first shows the model and software version:
GE
XGS868i Y4AS.STD
The meter then starts to display measured parameters.
CH1 VEL E1
10.00 Ft/s
To enter the Keypad Program, press the [Escape] key, followed by the [Enter] key, and the [Escape] key again. Each
successive key must be entered within 10 seconds of the prior key.
As a guide in following the programming instructions in this chapter, the relevant portions of the Model XGS868i
menu map have been reproduced in Figure 28 on page 77 and Figure 29 on page 78. Proceed to the following sections
to enter data in the Channel or GLOBL menus.
IMPORTANT: If the keypad has not been pressed for 10 minutes, the XGS868i exits the Keypad Program and returns to
displaying measurements. The meter retains any configuration changes that were confirmed with the
[Enter] key, and restarts as if the operator had completed the programming cycle.
4 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.4 Activating a Channel
The Channelx-ACTIV 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 XGS868i.
While following the programming instructions, refer to Figure 28 on page 77. To access the Channelx-ACTIV submenu:
1. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to ACTIV and press [Enter].
4. Scroll to Burst to activate the channel/path, and press [Enter].
Note: Burst is automatically selected for a 1-Channel meter.
5. Scroll to one of the measurement methods described below and press [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 the
chapter.
Procedure Options
After completing the above step, the XGS868i returns to the Channel PROGRAM window. Do one of the following:
Signal submenu section on page 14 of this
• 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 Keypad Program, press [Escape] twice.
DigitalFlow™ XGS868i Programming Manual 5
Chapter 1. Programming Site Data
1.5 Entering System Data for the Channel
The Channelx-System submenu is used to enter system parameters for the channel. While following the programming
instructions, refer to Figure 28 on page 77.
1.5.1 Accessing the Channelx-System Submenu
1. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to SYSTM and press [Enter].
4. Use the arrow keys to enter the desired Channel Label (up to 5 characters) and press [Enter].
5. Use the arrow keys to enter the desired Site/Channel Message (up to 21 characters) and press [Enter].
1.5.2 Selecting Volumetric Units
1. Scroll to the desired Volumetric Units for the flow rate display and press [Enter]. Available units are listed in
Table 1 below.
2. Scroll to the desired Volumetric Time units for the flow rate display and press [Enter].
3. Scroll to the desired number of Vol. Decimal Digits (digits to the right of the decimal point in the volumetric flow
rate display) and press [Enter].
Table 1: Available Volumetric/Totalizer Units
English Metric
ACF = Actual Cubic Feet ACM = Actual Cubic Meters
KACF = Thousands of ACF KACM = Thousands of ACM
MMACF = Millions of ACF MMACM = Millions of ACM
SCF = Standard Cubic Feet SCM = Standard Cubic Meters
KSCF = Thousands of SCF KSCM = Thousands of SCM
MMSCF = Millions of SCF MMSCM = Millions of SCM
1.5.3 Selecting Totalizer Units
1. Scroll to the desired Totalizer Units for the totalized flow rate display and press [Enter]. Available units are listed in
Table 1.
2. Scroll to the desired number of Tot Decimal Digits (digits to the right of the decimal point in the totalized flow rate
display) and press [Enter].
3. Do one of the following:
• If MASS FLOW is ON, proceed to Selecting the Mass Flow Units on the following page.
• If MASS FLOW is OFF, the meter returns to the Channel PROGRAM. Go to Procedure Options on page 5.
Note: To activate mass flow, refer to page 19.
6 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.5.4 Selecting Mass Flow Units
1. Scroll to the desired Mass Flow units for the flow rate display and press [Enter]. The available units for this prompt
are determined by the selection made at System Units (see Table 2).
Table 2: Available Mass Flow Units
English Metric
LB = Pounds KG = Kilograms
KLB = Thousands of LB TONN = Metric Tons (1,000 KG)
MMLB = Millions of LB
TONS = Tons (2,000 LB)
2. Scroll to the desired Mass Flow Time units for the mass flow rate display and press [Enter].
3. Scroll to the desired number of Mdot Decimal Digits (digits to the right of the decimal point in the mass flow rate
display) and press [Enter].
4. Scroll to the desired Mass (Totalizer) units for the totalized mass flow rate display and press [Enter]. The available
units for this prompt are determined by the selection made at the System Units prompt.
5. Scroll to the desired number of Mass Decimal Digits (digits to the right of the decimal point in the totalized mass
flow rate display) and press [Enter].
Procedure Options
After completing the steps on the previous page, the XGS868i returns to the Channel PROGRAM window. Do one of
the following:
• To continue entering “quick startup” data, continue to Step 1 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 Keypad Program, press [Escape] twice.
DigitalFlow™ XGS868i Programming Manual 7
Chapter 1. Programming Site Data
1.6 Entering Transducer and Pipe Parameters
Enter the transducer and pipe parameters via the PIPE submenu. While following the programming instructions, see
Figure 28 on page 77.
1. From the Channel PROGRAM menu, scroll to the PIPE option and press [Enter].
2. The first prompt asks for the Transducer Number.
• For a standard transducer, use the arrow keys to enter the number engraved on the transducer head, and press
[Enter].
• If there is no number engraved on the transducer head, press the right arrow key to scroll to the STD option, and
use the up and down arrow keys to change to SPEC. Then use the arrow keys to enter an assigned number (from
91 to 99), and press [Enter].
IMPORTANT: Special transducers have no engraved number on the head and are rarely used. Examine the transducer
head carefully for a number.
• If you entered the number for a standard transducer, proceed to the Pipe OD prompt in step 5.
• If you entered the number for a special transducer, proceed to step 3 below.
1.6.1 Special Transducers
Note: For special transducers, GE Measurement & Control will supply a transducer data sheet with programming
information.
3. Scroll to the transducer Frequency (supplied by the factory) and press [Enter].
Note: The frequency is required to transmit an excitation voltage at the transducer’s natural frequency.
4. Enter the special transducer Tw (time delay) value (supplied by the factory) and press [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.
8 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.6.2 Pipe Data
If either a standard or a special transducer is being used, the programming sequence should be rejoined at this point.
5. To select the appropriate Pipe OD Unit type from the list shown in Table 3 below, scroll to the right side of the
screen, and use the up and down arrow keys to step through the list. Press [Enter]. Then use the arrow keys to enter
the known pipe outside diameter or circumference on the left side and press [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 (914-004).
Table 3: Available Pipe Size Units
English Metric
inches mm = millimeters
feet m = meters
in/PI = pipe circumference
in inches
mm/PI = pipe circumference
in millimeters
ft/PI= pipe circumference
in feet
m/PI = pipe circumference
in meters
6. Use the arrow keys to enter the known Pipe Wall Thickness (in inches or mm) and press [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 the 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/Circumference.
1.6.2a Path and Axial Lengths
7. To enter the Path Length:
a. Use the [] arrow key to highlight the path length unit type at the right of the screen.Then use the [] and []
arrow keys to scroll to the desired unit type.
b. Use the [] arrow key to return to the numeric entry on the left, and enter the path length of the ultrasonic signal.
Press [Enter].
DigitalFlow™ XGS868i Programming Manual 9
Chapter 1. Programming Site Data
1.6.2a Path and Axial Lengths (cont.)
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.
8. In the same manner, enter the appropriate Axial Length L unit type and axial length of the ultrasonic signal, and
press [Enter].
9. Scroll to the desired Fluid Type and press [Enter]. Then do one of the following:
• If OTHER was selected - proceed to Step 10.
• If STEAM was selected - proceed to Step 11.
10. Use the arrow keys to enter the Fluid Soundspeed (in feet per second) in the gas to be measured and press [Enter].
11. Scroll to the appropriate choice to indicate whether you want Reynolds Correction, and press [Enter].
• If Off is selected, go to Step 12.
• If On is selected, the program asks for the Kinematic Viscosity. Use the arrow keys to enter the desired value, and
press [Enter].
12. Use the arrow keys to enter a value for the flow Calibration Factor and press [Enter]. The default value is 1.00, but
values between 0.50 and 2.0 may be entered. The value is typically set at the factory, based on application details.
Procedure Options
After entering the Calibration Factor, the XGS868i returns to the
Channel PROGRAM. Do one of the following:
• To continue entering “quick startup” data, press [Escape] once and proceed to Step 1 in Entering Global System
Data on page 21
.
• To continue regular programming, refer to Appendix A, Menu Maps, to navigate to the desired menu.
• To leave the Keypad Program, press the [Escape] key twice.
10 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.7 Entering Zero Cutoff and Setting Up Inputs
Enter the zero cutoff value and set up the temperature and pressure inputs via the I/O submenu. While programming
these parameters, refer to Figure 28 on page 77.
IMPORTANT: If an option card in Slot 1 fails to appear in this menu, it may be turned Off. See the Global-I/O-Options
section on page 25 for setup instructions.
1.7.1 Zero Cutoff Value
Near a zero flow rate, the Model XGS868i’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. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to I/O and press [Enter].
4. Enter a value from 0 to 1 ft/sec (0 to 0.30 m/sec) for the Zero Cutoff and press [Enter]. The recommended setting is
0.0200 ft/sec (0.0009 m/sec).
1.7.2 Assume Saturation
This prompt permits you to use a single input for either temperature or pressure to measure mass flow. The User
Program contains a table 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. At the Assume Saturation? prompt, scroll to No or Yes and press [Enter].
• If you selected Yes, proceed to Step 2 below.
• If you selected No, proceed to Step 3 on the next page.
1.7.3 Steam Input Type
2. Scroll to the Steam Input Type that will be used to measure mass flow and press [Enter].
• If you selected Temperature, proceed to Temperature Input on the next page.
• If you selected Pressure, proceed to Base Temperature on the next page.
IMPORTANT: GE Measurement & Control recommends using a live input for either temperature or pressure when
assuming the saturation.
DigitalFlow™ XGS868i Programming Manual 11
Chapter 1. Programming Site Data
1.7.4 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.
3. Scroll to a Fixed temperature value or to set up the option card in Slot 1 that will supply the live temperature input
and press [Enter].
Note: If Slot 1 contains an activated option card with an analog input assigned to
appears as an option at the above prompt. If the process temperature 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.
Temperature or an RTD input, Slot 1
• If you selected Fixed, proceed to Step 4.
• If you selected Slot 1, proceed to Step 5.
4. Enter the known Fixed Temp. (process temperature) and press [Enter]. The meter will accept values from -328 to
o
1,832°F (-200 to 1,000
5. Scroll to Input A or Input B and press [Enter]. The inputs were labeled during setup.
Note: The set up of Input A is used as an example. Identical procedures would be used to set up Input B.
C). Proceed to Base Temperature in step 6.
1.7.5 Base Temperature
6. Use the arrow keys to enter the Base Temperature and press [Enter]. The ratio of this value to the actual
temperature is used to calculate the standard mass flow rate.
• If you selected No at Assume Saturation, proceed to Step 7 below.
• If you selected Pressure as the Steam Input Type, proceed to Step 7 below.
• If you selected Temperature as the Steam Input Type, proceed to step 10 on the next page.
1.7.6 Pressure Input
7. Scroll to a Fixed pressure value or to set up the option card in Slot 1 that will supply the live pressure input and
press [Enter].
Note: If Slot 1 contains an activated option card with an input assigned to Pressure, Slot 1 appears as an option at the
above prompt. If the process pressure is stable, a fixed value may be used, but most applications require a live
pressure input. If there is no active option card for pressure, the meter assumes you are using a fixed pressure.
• If you selected Fixed, proceed to Step 8.
• If you selected Slot 1, proceed to Step 9.
8. Enter the known Fixed process Pressure and press [Enter]. The meter will only accept values from 0 to 5,000 psia.
Proceed to Base Pressure in Step 10.
9. Scroll to Input A or Input B and press [Enter]. The inputs were labeled during setup.
Note: The set up of Input A is used as an example. Identical procedures would be used to set up Input B.
12 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.7.7 Base Pressure
10. Enter the Base Pressure and press [Enter]. The ratio of this value to the actual pressure is used to calculate the
standard mass flow rate.
1.7.8 Low Pressure Switch
11. Scroll to Ye s or No to activate or deactivate the Low Pressure Switch software function and press [Enter].
• If you selected Yes, enter the Pressure Limit, the low pressure switch set point, and press [Enter]. The acceptable
range is 0 to 5,000 psia. The meter will stop taking readings if the pressure drops below this value.
• If you selected No, go to Quality Input (step 12) below.
1.7.9 Quality Input
When the temperature and pressure inputs indicate that the steam is saturated, the Quality Input value is used for the
mass flow rate 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 gas phase. The remaining fraction is assumed to
be liquid water. Thus, a quality value of 1.0 indicates 100% gas.
12. At the Quality Input prompt, scroll to 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 [Enter].
Note: If Slot 1 contains an activated option card with an analog input that has been programmed as
appears 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.
Special, Slot 1
• If you selected Fixed, proceed to Step 13.
• If you selected Slot 1, proceed to Step 14.
13. Enter the known Fixed steam Quality and press [Enter]. (The meter will accept values from 0.0000 to 1.0000.) Go
to Procedure Options below.
14. Scroll to Input A or Input B and press [Enter]. The inputs were labeled during setup.
Note: The set up of input A is used as an example. Identical procedures would be used to set up input B.
Procedure Options
After completing the above steps, the XGS868i returns to the Channel PROGRAM window. Do one of the following:
• To continue programming, refer to Appendix A, Menu Maps, to navigate to the desired menu.
• To leave the Keypad Program, press [Escape] three times.
DigitalFlow™ XGS868i Programming Manual 13
Chapter 1. Programming Site Data
1.8 Entering Setup Data
The signal limits, response times, mass flow and multiple K factors for the Model XGS868i are specified via the Setup
submenu. The following four submenus are included in this section:
• Signal - set the parameters related to the transducer signal (see below).
• Default Setup - reset all parameters to default values (page 16).
• V averaging - specify the response of the meter to step changes (page 16).
• Advanced Features - enable mass flow and enter K factors
(page 18).
While following the programming instructions, refer to Figure 29 on page 78. Record all programmed data in
Appendix B, Data Records.
1.8.1 Setting Transducer Signal Parameters
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. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to Setup and press [Enter].
4. Scroll to SIGNL and press [Enter].
5. Use Table 4 on page 15 to choose the desired values. Use the arrow keys to enter a value (or scroll to a value for a
parameter with menu options) and press [Enter].
Procedure Options
After completing the above steps, the XGS868i returns to the Channel SET UP window. Do one of the following:
• To continue programming, refer to Appendix A, Menu Maps, to navigate to the desired menu.
• To leave the Keypad Program, press [Escape] three times.
14 DigitalFlow™ XGS868i Programming Manual
1.8.1 Setting Transducer Signal Parameters (cont.)
Table 4: Transducer Signal Settings
Transducer
Signal
Parameters Range
Signal Low
Limit
Correlation
Peak Limit
Soundspeed
-20 to 100 20
0 to 500 100
1 to 50% 20%
+- Limit
-500 to 500
Velocity Low
Limit
ft/sec
(-150 to 150
m/sec)
-500 to 500
Velocity High
Limit
ft/sec
(-150 to 150
m/sec)
Acceleration
Limit
0 to 250ft/s
(0 to 76m/s)
Amplitude
Discriminator
0 to 100 14
Low
Amplitude
Discriminator
0 to 100 34
High
Delta T Offset
Skan T Offset
-1000 to
1000 μsec
–500 to
500 μsec
% of Peak 1 to 100% 50%
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 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 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 ChannelxSystem menu by more than the programmed SOUNDSPEED +- LIMIT value.
See Chapter 2 in the Service Manual for a discussion of error codes.
The E3: VELOCITY RANGE error messages appears when the calculated fluid
-75.0 ft/sec
(-23 m/sec)
75.0 ft/sec
(23 m/sec)
50 ft/s
(15 m/s)
0 μsec
58 μsec
velocity is less than the programmed VELOCITY LOW LIMIT value.
See Chapter 2 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 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 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 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 in the Service Manual for a discussion of error codes.
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.
Chapter 1. Programming Site Data
DigitalFlow™ XGS868i Programming Manual 15
Chapter 1. Programming Site Data
Transducer
Signal
Parameters Range
M>S Switch
0 to 250
μsec
# 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)
Table 4: Transducer Signal Settings (cont.)
Default
Value Miscellaneous Information
If the burst mode is set to Skan/Measure (S/M), the meter switches from Skan
50 μsec
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 sound speed. However, for special diagnostic purposes, it is possible to
reset the window size.
1.8.2 Initializing Setup Parameters - Default Setup
Use this option to initialize (reset) all of the parameters within the Setup menu to their default values. Complete the
following steps to reset all of the parameters:
1. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to Setup and press [Enter].
4. Scroll to INIT. Press [Enter].
5. Scroll to Yes to initialize default parameters or No to abort this command. Press [Enter].
Procedure Options
After completing the above steps, the XGS868i returns to the Channel Set up window. Do one of the following:
• To continue programming, refer to Appendix A, Menu Maps, to navigate to the desired menu.
• To leave the Keypad Program, press [Escape] four times.
16 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.8.3 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 Measurement & Control personnel.
1. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to Setup and press [Enter].
4. Scroll to AVRG and press [Enter].
5. Scroll to the Response Time (in number of readings) and press [Enter]. For best results, select a value of 30 to
ensure the most stable signal.
Procedure Options
After completing the above steps, the XGS868i returns to the Channel SET UP window. Do one of the following:
• To continue programming, refer to Appendix A, Menu Maps, to navigate to the desired menu.
• To leave the Keypad Program, press [Escape] four times.
DigitalFlow™ XGS868i Programming Manual 17
Chapter 1. Programming Site Data
1.8.4 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 - to compensate for non-linear flow rates (see below).
• enable mass flow - calculated for static fluid density (see the next page).
1.8.4a Entering 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 data pairs. Complete the following steps to
enter multiple K factors for velocity values:
Note: The K factors are supplied by the factory; without them the K factor table cannot be edited.
1. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to Setup and press [Enter].
4. Scroll to ADVAN. Press [Enter].
5. Scroll to MULTK, and press [Enter].
6. Scroll to ON to activate, or to OFF to deactivate multiple K factors, and press [Enter].
Note: If you selected OFF, go to Procedure Options on the next page.
7. Scroll to the Custom Type of K factor desired: CstV (velocity) or CstR (Reynolds). Press [Enter].
• If you selected CstR, the meter asks for the Kinematic Viscosity. Use the arrow keys to enter the desired value,
and press [Enter].
8. Scroll to Yes to Edit Table, or to No to retain the current values, and press [Enter].
Note: If you scroll to No, go to Procedure Options on the next page.
1.8.4b Editing K Factors
1. Use the arrow keys to enter the number of K factors (2 to 20) in the table and press [Enter].
2. Enter the velocity (or Reynolds) value for K factor number “X” and press [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 [Enter].
4. Repeat Steps 2 and 3 for each pair of values.
18 DigitalFlow™ XGS868i Programming Manual
Chapter 1. Programming Site Data
1.8.4c 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 XGS868i calculates the actual density from the live or fixed temperature and pressure inputs,
as programmed in the I/O menu. However, setting the Mass flow calculation prompt to Yes overrides this
value and uses the density entered at the following prompt to calculate mass flow.
1. In the Keypad Program, scroll to PROG and press [Enter].
2. In the PROG menu, scroll to CH1 or CH2 and press [Enter].
3. In the Channel PROGRAM menu, scroll to Setup and press [Enter].
4. Scroll to ADVAN. Press [Enter].
5. Scroll to MASS, and press [Enter].
6. Scroll to Yes to activate, or to No to deactivate Static Density, and press [Enter].
Note: If you scroll to No, go to Procedure Options below.
7. Enter the Fluid Density and press [Enter].
Procedure Options
After completing the steps on the previous page, the XGS868i returns to the Advanced Features window. Do one of
the following:
• To continue programming, refer to Appendix A, Menu Maps, to navigate to the desired menu.
• To leave the Keypad Program, press [Escape] five times.
DigitalFlow™ XGS868i Programming Manual 19
Chapter 1. Programming Site Data
1.9 Entering Global Data
The Global menu is used to enter information that is not specific to either 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 in the Global
menu.
IMPORTANT: When calculating the sum, difference or average readouts, data from the Global-System submenu is used.
Any conflicting data entered in the Channelx-System submenu is overridden.
The following submenus are included in the Global menu:
• SYSTM - use to specify the units of measure used in calculations (see the next page).
• I/O - used to set up error handling and to configure analog inputs and outputs (see page 23).
• COMM- used to set up the serial communications port (see page 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 30 on page 79. Remember to record all programmed data in Appendix B,
Data Records.
20 DigitalFlow™ XGS868i Programming Manual
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