GE Sensing GS868 Operating Manual
GE
Measurement & Control Flow
DigitalFlow™ GS868
Panametrics Steam Ultrasonic Mass Flowmeter
Programming Manual (2-Channel)
910-190P2 Rev. E
February 2015
DigitalFlow™ GS868
Panametrics Steam Ultrasonic Mass Flowmeter
Programming Manual (2-Channel)
910-190P2 Rev. E
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]
ii
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™ GS868 Programming Manual (2-Channel) 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.
http://www.ge-mcs.com/en/about-us/environmental-health-and-safety/weee.html for take-back instructions and
Visit
more information about this initiative.
iv DigitalFlow™ GS868 Programming Manual (2-Channel)
Contents
Chapter 1. Programming Site Data
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Using the Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.3 Obtaining On-line Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.4 Using the Console Control Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.4.1 Audio Alarm Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4.2 Stopwatch Totalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4.3 Display Brightness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.4.4 Display Contrast. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.5 The User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.6 Entering Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.7 Entering Channel Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.7.1 Activating a Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.7.2 Entering Channel System Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.7.3 Entering Pipe Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
1.7.4 Setting Up Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
1.7.5 Entering Setup Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
1.7.6 Setting Advanced Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.8 Entering Global System Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.8.1 Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
1.8.2 Entering Global System Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
1.8.3 Setting Up the Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
1.8.4 Setting Up Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
1.8.5 MODBUS Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
1.8.6 Activating Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
1.8.7 Saving Site Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
1.8.8 Recalling a Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Chapter 2. Displaying Data
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
2.2 The BIG Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
2.3 The DUAL Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
2.4 The GRAPH Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
2.4.1 Setting Up the GRAPH Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
2.4.2 Using the GRAPH Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
2.5 The LOG Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
2.5.1 Entering the LOG Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
2.5.2 Numeric Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
2.5.3 Graphical Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
2.6 Displaying the Transducer Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
2.7 Setting the LCD Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
2.8 Activating Sleep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
DigitalFlow™ GS868 Programming Manual (2-Channel) v
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Chapter 3. Logging Data
3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
3.2 Creating a Standard Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
3.2.1 Log Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
3.2.2 STARTTIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
3.2.3 START DATE Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
3.2.4 END TIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
3.2.5 END DATE Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
3.2.6 DURATION Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
3.2.7 LOG TIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
3.2.8 TIME INCREMENT Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
3.3 Checking the Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
3.4 Stopping a Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
3.5 Creating an ERROR Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
3.5.1 Log Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
3.5.2 STARTTIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
3.5.3 START DATE Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Chapter 4. Printing Data
4.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
4.2 Print Live Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
4.2.1 Numeric Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
4.2.2 Graphical Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
4.3 Printing Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4.3.1 Numeric Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
4.3.2 Graphical Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
4.4 Printing a Site File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
4.5 Stopping Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
4.6 Setting Up a Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
4.6.1 Printing Signal Array Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
4.7 Printing RTD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Chapter 5. Clearing Data
5.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
5.1.1 Resetting Totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
5.2 Deleting Site Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
5.3 Deleting Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
vi DigitalFlow™ GS868 Programming Manual (2-Channel)
Contents
Chapter 6. Serial Communications
6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
6.2 Wiring the RS232 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
6.3 Checking the GS868 Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
6.4 Setting Up the Terminal Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
6.4.1 Windows 3.X Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
6.4.2 Windows 9X/NT Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
6.5 Optional RS485 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
6.5.1 Interface Converter Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
6.5.2 Point-To-Point Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
6.5.3 Multi-Point Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
6.6 Setting Up an Ethernet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
6.7 Setting Up a MODBUS/TCP Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Appendix A. Menu Maps
Appendix B. Data Records
B.1 Option Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
B.2 Initial Setup Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Appendix C. Programming with PanaView
C.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
C.2 Wiring the RS232 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
C.3 Setting Up the Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
C.3.1 Setting up Ethernet Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
C.4 Adding the GS868 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
C.5 Editing Meter Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
C.5.1 Setting the Meter Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
C.5.2 Reading Transducer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
C.5.3 Plotting Transducer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
C.5.4 Saving Transducer Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
C.5.5 Clearing Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
C.5.6 Handling Site Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
C.6 Changing Meter Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Appendix D. Foundation Fieldbus Communications
D.1 Optional Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
D.2 Configuration Utility Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
D.3 Selecting the Desired Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
D.4 Selecting Units for AI Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
D.5 Resetting Instrument Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
D.6 Function Block Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
DigitalFlow™ GS868 Programming Manual (2-Channel) vii
Contents
Appendix E. Foundation Fieldbus Tables
viii DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
Chapter 1. Programming Site Data
1.1 Introduction
The 2-Channel Model GS868 flowmeter cannot provide accurate flow rate measurements for either channel until the
instrument has been properly installed, the channel has been activated, and the basic system and pipe parameters have
been programmed into the meter. See the Startup Guide for detailed instructions on performing these tasks. After
completing the installation, proceed with this chapter to program the Model GS868’s advanced features.
Four submenus within the User Program provide access to the various programmable features of the Model GS868.
Step-by-step programming instructions for each submenu are presented in this chapter. Refer to the appropriate section
for a discussion of the following User Program submenus:
• CH1/CH2 - use this submenu to activate a channel and to enter the basic setup parameters for that channel.
• GLOBL - use this submenu to enter global meter parameters (i.e., clock, system, input/output, communications and
security), which apply to both channels.
• SAVE - use this submenu to store both channel and global data in the meter’s memory, as a site file.
• RECLL - use this submenu to recall and activate a stored site file.
Note: It is not required that both channels of a 2-Channel Model GS868 be installed. The second channel connector
may simply be left vacant for future expansion.
As an aid in following the programming instructions, a complete set of menu maps for the User Program is included in
Appendix A, Menu Maps. The specific figure numbers will be referenced throughout this chapter, as required.
Note: In the menu map drawings, plain text represents prompt area messages and boxed text represents option bar
choices. Fx represents a function key to select an option bar choice.
DigitalFlow™ GS868 Programming Manual (2-Channel) 1
Chapter 1. Programming Site Data
HIJK LMN
W
PROG
Q
EXIT
SCREEN
V
DISP
CAL
OP
CLR
HELP
LOG
0
XYZ
PRNT
123
45
RST
ENT
6
U
ABCD EFG
789
1.2 Using the Keypad
The Model GS868 keypad contains 39 keys, which are labeled with their primary (unshifted) functions. In addition,
pressing the red
The complete keypad is illustrated in Figure 1 below and a detailed description of both the unshifted and shifted
functions for each of the 39 keys is listed in Table 1 on page 3.
[SHIFT] key will access the secondary functions assigned to most of the keys.
Note: Only the
[SHIFT] key and the eight [Fx] keys have no shifted function.
Figure 1: The Model GS868 Keypad
Note: Although the keypad is essentially the same, the front panel layout of meters supplied in one of the optional
enclosures is different. See Appendix C, Optional Enclosures, of the Startup Guide for a picture of the
applicable front panel.
2 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
Table 1: Model GS868 Key Functions
Key Unshifted Function Shifted Function
Software Function Keys - press to
None
select the functions displayed directly
above them in the option bar. These
keys apply only to the left pane of the
display screen.
Software Function Keys - press to
select the functions displayed directly
above them in the option bar. These
keys apply only to the right pane of the
display screen.
Shift Key - use this red key to access
the shifted function of the other keys.
One press shifts the next keystroke
only, while two presses locks the
keypad in shifted mode. A third press
releases the shift function.
Arrow Keys - in measurement mode,
use to scroll through function choices
on the option bar. In programming
mode, use to scroll through menu
choices. The
] key also acts as a
backspace key in programming mode.
None
None
Use to enter the letters A, B, C and D,
respectively.
Program Key - press to enter the User
Use to enter the letter Q.
Program. See page 8 for details.
DigitalFlow™ GS868 Programming Manual (2-Channel) 3
Chapter 1. Programming Site Data
Key Unshifted Function Shifted Function
Table 1: Model GS868 Key Functions (cont.)
Display Key - use to display data in a
variety of numeric and graphic
formatting options. See Chapter 2 for
details.
Use to enter the letter O.
Log Key - use to set up logs. See
Chapter 3 for details.
Print Key - use to print live
measurements, log files and signal
arrays. See Chapter 4 for details.
Clear Key - use to reset totals and to
delete site and log files from the Model
GS868 memory. See Chapter 5 for
details.
Calibration Key - use to calibrate the
analog inputs and outputs and to test
the alarm relays and the totalizer/
frequency outputs. See Chapter 1,
Calibration, in the Service Manual for
details.
Exit Key - use to move up one level in
the user program or to exit the user
program.
Enter Key - use to confirm the most
recent input information.
Use to enter the letter X.
Use to enter the letter R.
Use to enter the letter H.
Use to enter the letter P.
Use to enter the letter J.
Use to enter the letter K.
Help Key - use to access the Model
Use to enter the letter I.
GS868’s context-sensitive on-line help
system. See the next section for details.
Screen Key - press the left side to
select the left display pane or press the
right side to select the right display
Press the left side to enter the letter V
or press the right side to enter the letter
W.
pane.
Decimal Point Key - press to enter a
Use to enter the letter Z.
decimal point during numeric entry.
Minus Key - use to enter a minus sign
Use to enter a space character.
or a dash.
Zero Key - use to enter the number 0. Use to enter the letter Y.
One Key - use to enter the number 1. Use to enter the letter S.
4 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
Table 1: Model GS868 Key Functions (cont.)
Key Unshifted Function Shifted Function
Two Key - use to enter the number 2. Use to enter the letter T.
Three Key - use to enter the number 3. Use to enter the letter U.
Four Key - use to enter the number 4. Use to enter the letter L.
Five Key - use to enter the number 5. Use to enter the letter M.
Six Key - use to enter the number 6. Use to enter the letter N.
Seven Key - use to enter the number 7. Use to enter the letter E.
Eight Key - use to enter the number 8. Use to enter the letter F.
Nine Key - use to enter the number 9. Use to enter the letter G.
Audio Level Key - press to increase
the audio alarm volume.
Stopwatch Timer Key - press to turn
Press to decrease the audio alarm
volume.
Press to turn the stopwatch timer off.
the stopwatch timer on.
Backlight Key - press to turn the
display backlight on or to increase its
Press to turn the display backlight off
or to decrease its brightness.
brightness.
Contrast Key - press to increase the
contrast of the display screen.
Press to decrease the contrast of the
display screen.
DigitalFlow™ GS868 Programming Manual (2-Channel) 5
Chapter 1. Programming Site Data
ON-LINE HELP
MORE
FLOW
EXIT
ERROR
1.3 Obtaining On-line Help
A context-sensitive, on-line help system is programmed into every Model GS868 flowmeter. On-line help, which
displays additional information related to the current task, may be accessed at any time by pressing the
the keypad. The help information will be shown on the currently selected pane of the display screen, as shown in
Figure 2 below.
[HELP] key on
Figure 2: Typical On-Line Help Screen
After entering the on-line help system, the following functions are available on the option bar of the selected display
pane:
• MORE: Press [F1] (or [F5]) to access this function, and the next screen of text is displayed in the prompt area.
• EXIT: Press [F2] (or [F6]) to access this function, and the Model GS868 returns to measurement mode.
• ERROR: Press [F3] (or [F7]) to access this function, and the various Model GS868 error codes are displayed. Use the
[F1]-[F4] (or [F5]-[F8]) function keys, in conjunction with the ] and ] keys, to obtain additional information on
the desired error code or to exit the help system.
Note: See the Service Manual for a complete listing of all error codes and messages
• FLOW: Press [F4] (or [F8]) to access this function, and the various flow measurement parameters are displayed. Use
the
[F1]-[F4] (or [F5]-[F8]) function keys, in conjunction with the ] and ] keys, to obtain additional information
on the desired measurement parameter or to exit the help system.
6 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
1.4 Using the Console Control Keys
The Model GS868 has four console control keys located on the left side of the keypad. Use these keys, which are
described and pictured in Table 1 on page 3, as follows:
1.4.1 Audio Alarm Volume
Use the top console control key to adjust the audio alarm volume.
Discrete presses will incrementally increase the volume of the audio alarm. Hold the key down for continuous increase.
Use the key in shifted mode to decrease the volume of the audio alarm.
1.4.2 Stopwatch Totalizer
Use the second console control key for the stopwatch totalizer.
Press the key once to start the stopwatch totalizer. Press the key once, in shifted mode, to stop the stopwatch totalizer.
Note: Instructions on properly setting up the stopwatch totalizer are given later in this chapter. Also, the Service
Manual provides information on the error response of the stopwatch totalizer.
1.4.3 Display Brightness
Use the third console control key to adjust the display backlight.
Discrete presses of this key will increase the backlight brightness through settings of Off, Mid and Full. Discrete
presses of this key in shifted mode, will decrease the backlight brightness through settings of Full, Mid and Off.
Note: The display backlight has an automatic time-off feature. See page 57 for setup instructions.
1.4.4 Display Contrast
Use the bottom console key to adjust the display contrast.
Discrete presses will incrementally increase the display contrast. Hold the key down for continuous increase. Use the
same key, in shifted mode, to decrease display contrast.
DigitalFlow™ GS868 Programming Manual (2-Channel) 7
Chapter 1. Programming Site Data
1.5 The User Program
Use the keypad, as described in Chapter 3, Operation, of the Startup Guide to navigate through the User Program. The
menu map may be followed in sequence, or the
] key may be used to delete the last alphanumeric character that was entered from the keypad.
The
The following discussion assumes that the left screen pane is active. If the right screen pane is active, only the function
key designations change. That is, replace
instructions apply equally to
Channel 2.
[F1]-[F4] with [F5]-[F8]. Also, Channel 1 is used in all examples, but the
Note: Be sure to record all the programming data entered in this chapter in Appendix B, Data Records.
] and ] keys may be used to scroll through the prompt screens.
Programming of the
ACTIV, SYSTM (CH1 and GLOBL) and PIPE submenus is necessary for operation of the Model GS868.
Failure to accurately enter all of the required information will result in unreliable flow rate data. Therefore, be sure to
complete at least the sections of this chapter pertaining to those three submenus.
Note: Because it is so essential, instructions for programming the
ACTIV, SYSTM (CH1 and GLOBL) and PIPE submenus
are also included in the Startup Guide. If that programming has already been completed, skip the
corresponding sections of this chapter.
Except for the three submenus noted above, it is not necessary to program the Model GS868 flowmeter in any
particular order. Therefore, the sections of this chapter need not be completed in sequence. Proceed immediately to any
section of interest.
1.6 Entering Programming Mode
To access the User Program, press the [PROG] key on the keypad. The standard measurement mode screen will be
replaced by the following initial programming mode screen:
PROGRAM Start
Press the ] and ] keys and one of the function keys [F1]-[F4] to select
the desired submenu. From this screen, press
[EXIT] to return to
measurement mode.
PROGRAM
Channel 1
CH1 CH2 GLOBL SAVE
Note:
If the security feature is active, enter the password and press the
[ENT] key to enter the User Program. See the SECUR
submenu section on page 41 of this chapter for more information on the security feature.
8 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
1.7 Entering Channel Data
If [F1]=CH1 (or [F2]=CH2) was selected at the initial User Program prompt shown on page 1-8, the following screen
appears:
Chan 1 PROGR Start
Press the ] and ] keys and a function key [F1]-[F4] to select the
desired submenu. From this screen, press
[EXIT] to return to the initial
User Program screen shown on page 8.
Channel PROGRAM
status
ACTIV SYSTM PIPE I/O
Based on the selection made above, proceed to the appropriate section of this chapter for instructions.
1.7.1 Activating a Channel
The ACTIV submenu activates a channel and selects the desired measurement method. While following the
programming instructions, refer to the menu map in Figure 11 on page 95.
1. Enter the
2. Press
channel in
3. Press
return to the channel menu screen.
ACTIV submenu by pressing [F1] at the Channel PROGRAM prompt.
[F1] (OFF) to deactivate the channel and return to the Channel PROGRAM prompt, or press [F2] to activate the
BURST mode.
[F1] to select Skan mode or [F2] to select Skan/Measure mode. The meter will exit the ACTIV submenu and
:As indicated in the above prompt, the Model GS868 flowmeter can take measurements in two different ways:
• Skan is a low resolution technique for locating the acoustic signal and for high velocity measurements. It is more
robust in a noisy environment than the Measure technique.
• Measure is a more precise technique best used for low velocity measurements.
If Skan is selected at the next prompt, the instrument uses this technique exclusively. However, if S/M is selected, the
meter uses Skan to find the acoustic signal and then tries to use the Measure technique for a more precise measurement.
Note: To change the
Skan and Measure parameters, see the SIGNL submenu section on page 19.
DigitalFlow™ GS868 Programming Manual (2-Channel) 9
Chapter 1. Programming Site Data
Procedure Options
After completing the above steps, the meter returns to the
Channel PROGRAM prompt. Continue as follows:
• To continue programming the meter, refer to the menu maps in Appendix A and navigate to the desired menu.
Then, proceed to the appropriate section of this manual for instructions.
• To leave the User Program and retain the previous settings, press [EXIT] twice and then press [F1] = NO at the
SAVE prompt. Any programming changes will be discarded and you will be returned to the data display.
• To leave the User Program and return to measurement mode, press [EXIT] twice and then press [F2] = YES at the
Save prompt. Your programming changes will be entered into the meter’s memory, and you will be returned to
the data display.
Note: See the
SAVE submenu section on page 43 of this chapter for more information on this function.
10 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
1.7.2 Entering Channel System Data
While following the programming instructions, refer to the menu map in Figure 11 on page 95.
IMPORTANT: Do not confuse this SYSTM submenu, which is used to enter channel-specific information, with the SYSTM
submenu of the
GLOBL menu, which is used to enter information applicable to both channels.
1. To enter the
2. Enter a Channel Label of up to 9 characters. Press
3. Enter a Channel Message of up to 21 characters. Press
4. At the Equation prompt, press
SYSTM submenu, press [F2] at the Channel PROGRAM prompt.
[ENT].
[ENT].
[F1] to display the measurement data in standard volumetric units, or press [F2] to
display the measurement data in actual volumetric units. The GS868 uses the appropriate gas equation to calculate
the flow rate in the volumetric units indicated.
5. Use the
[F1]-[F4] and ] keys to select the desired Volumetric Units for the flow rate display.
The abbreviations and definitions of all the available volumetric and totalizer units are shown in Table 2 on page 11.
The choices shown on the option bar are determined by the selection made at the previous
SYSTEM UNITS screen.
Table 2: Available Volumetric/Totalizer Units
English Metric
Actual Units
ACF = Actual Cubic Feet ACM = Actual Cubic Meters
KACF = Thousands of ACF KACM = Thousands of ACM
MMACF = Millions of ACF MMACM = Millions of ACM
Standard Units
SCF = Standard Cubic Feet SCM = Standard Cubic Meters
KSCF = Thousands of SCF KSCM = Thousands of SCM
MMSCF = Millions of SCF MMSCM = Millions of SCM
6. Use the
7. Use the
[F1]-[F4] keys to select the Volumetric Time (units for the volumetric flow rate display).
[F1]-[F4] keys to select the Vol Decimal Digits (the desired number of digits to the right of the decimal point)
in the volumetric flow rate display.
8. Use the
[F1]-[F4] and ] keys to select the Totalizer Units.
The abbreviations and definitions of all the available volumetric and totalizer units are shown in Table 2 above. The
choices shown on the option bar in the prompt screen above are determined by the selection made at the previous
SYSTEM UNITS prompt screen.
9. Use the
[F1]-[F4] keys to select the Total Decimal Digits (the desired number of digits to the right of the decimal
point) in the totalized flow display.
DigitalFlow™ GS868 Programming Manual (2-Channel) 11
Chapter 1. Programming Site Data
1.7.2 Entering Channel System Data (cont.)
10.If Static Density? is set to NO in the ADVAN submenu, go to Procedure Options on the next page. Otherwise, proceed
as follows:
a. Use the
[F1]-[F4] keys to select the Mass Flow units, listed in Table 3 below.
Table 3: Available Mass Flow Units
English Mass Flow Units Metric Mass Flow Units
LB- Pounds KG - Kilograms
KLB - Thousands of Pounds
MMLB - Millions of Pounds
TO NS - Ton s Tonnes - Metric Ton s
b. Use the
c. Use the
[F1]-[F4] keys to select the Mass Flow Time units.
[F1]-[F4] keys to select the MDOT Decimal Digits (the number of digits to the right of the decimal
point) for displaying mass flow.
d. Use the
e. Use the
[F1]-[F4] keys to select the Mass (Totalizer) units, listed in Table 3 on the previous page.
[F1]-[F4] to specify the Mass Decimal Digits (the number of digits to the right of the decimal point) for
displaying totalized mass flow.
Procedure Options
After completing the above steps, the meter returns to the
Channel PROGRAM prompt. Continue as follows:
• To continue programming the meter, refer to the menu maps in Appendix A and navigate to the desired menu.
Then, proceed to the appropriate section of this manual for instructions.
• To leave the User Program and retain the previous settings, press [EXIT] twice and then press [F1] = NO at the
SAVE prompt. Any programming changes will be discarded and you will be returned to the data display.
• To leave the User Program and return to measurement mode, press [EXIT] twice and then press [F2] = YES at the
SAVE prompt. Your programming changes will be entered into the meter’s memory, and you will be returned to
the data display.
Note: See the
SAVE submenu section on page 43 of this chapter for more information on this function.
12 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
1.7.3 Entering Pipe Data
Enter the transducer and pipe parameters via the PIPE submenu. While following the programming instructions, refer to
the menu map in Figure 11 on page 95 in Appendix A, Menu Maps.
1. At the Channel Program screen, press
[F3] to program the PIPE submenu.
1.7.3a Transducer Number
2. Enter the Transducer Number (normally engraved on the head of the transducer). Press [ENT]. If there is no engraved
number, complete the steps below. Otherwise, proceed to step 3.
IMPORTANT: Special transducers, which have no engraved number on the head, are rarely used. Examine the
transducer head carefully for a number.
a. Assign a number between 91 and 99 to the Special Transducer and press
[ENT]. (The meter will only accept
values from 1 to 199.)
b. Use the
] and [F1]-[F4] keys to select the Frequency of the special transducer. The meter can not transmit an
excitation voltage at the transducer’s natural frequency without this data.
c. Enter the special transducer Time Delay (Tw) value supplied by the factory. Press
[ENT]. (The meter will only
accept values from 0 to 1000 sec.)
Note: 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.
1.7.3b Pipe OD
3. Enter the known Pipe OD or circumference and use the [F1]-[F4] keys to select the appropriate units. Press [ENT].
(The meter will only accept values from 1/8 to 648 in.) The option bar choices may appear in English or Metric
units.
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. Table 4 below lists the available English
and metric OD units, as specified in the
GLOBL submenu.
Table 4: Available Pipe OD Units
English Metric
inch = pipe OD in inches mm = pipe OD in millimeters
feet = pipe OD in feet m = pipe OD in meters
in/PI = pipe circumference
in inches
ft/PI = pipe circumference
in feet
mm/PI = pipe circumference
in millimeters
m/PI = pipe circumference
in meters
1.7.3c Pipe Wall
4. Use the numeric keys to enter the known thickness of the Pipe Wall. Press [ENT].
If the pipe wall thickness is not available, look up the value in a table of standard pipe size data or use the Model
GS868’s on-line Help Menu
DigitalFlow™ GS868 Programming Manual (2-Channel) 13
Chapter 1. Programming Site Data
1.7.3d Path Length
5. Press [F1] = inch or [F2] = feet to select the units. Then, enter the Path Length (P) of the ultrasonic signal. Press [ENT].
(The meter will only accept values from 1/8 to 900 in.)
Note: The factory has calculated both the transducer signal path length
based on the exact transducer configuration used for the application. These values are engraved on the
flowcell and/or are included in the documentation supplied with the meter.
(P) and the transducer signal axial length (L),
1.7.3e Axial Length
6. Press [F1] = inch or [F2] = feet to select the units.Then, enter the Axial Length (L) of the ultrasonic signal and press
[ENT].
Note: The factory has calculated both the transducer signal path length
based on the exact transducer configuration used for the application. These values are engraved on the
flowcell and/or are included in the documentation supplied with the meter.
(P) and the transducer signal axial length (L),
1.7.3f Fluid Type
7. Press [F1] = steam or [F2] = any other gas to select the Fluid Type.
OTHER was selected, enter the speed of sound (in feet per second) in the gas to be measured. Press [ENT]. (The
a. If
meter will only accept values from 125 to 9000 ft/sec.)
1.7.3g Reynolds Correction
8. The Reynolds Correction factor is a number based on the kinematic viscosity and flow rate of the gas. At the
prompt, press
[F1] to turn Reynolds Correction off, or [F2] to turn it on.
• If you select Reynolds Correction, the GS868 asks for the Kinematic Viscosity of the gas (available in the
brochure Sound Speeds and Pipe Size Data, 914-004). Use the numeric keys to enter the correct value and press
[ENT].
1.7.3h Calibration Factor
9. Enter a value for the flow Calibration Factor and press [ENT]. The default value is 1.00. (The meter will only accept
values from 0.5000 to 2.0000.)
Procedure Options
After completing the above steps, the meter returns to the
Channel PROGRAM prompt. Continue as follows:
• To continue programming the meter, refer to the menu maps in Appendix A of the Programming Manual and
navigate to the desired menu. Then, proceed to the appropriate section of the manual for instructions.
• To leave the User Program and retain the previous settings, press [EXIT] twice and then press [F1] = NO at the
SAVE prompt. Any programming changes will be discarded and you will be returned to the data display.
• To leave the User Program and return to measurement mode, press [EXIT] twice and then press [F2] = YES at the
SAVE prompt. Your programming changes will be entered into the meter’s memory, and you will be returned to
the data display.
14 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
1.7.4 Setting Up Inputs/Outputs
The following specific tasks may be performed via the I/O submenu:
• Enter a zero cutoff value to eliminate low flow reading fluctuations
• Set up fixed or live temperature and pressure inputs
• Set up fixed or live steam quality input for mass flow calculations
While following the programming instructions, refer to the menu map in Figure 12 on page 96 in Appendix A, Menu
Maps. Remember to record all programmed data in Appendix B, Data Records.
1. To enter the
I/O submenu, press [F4] at the Channel PROGRAM prompt.
1.7.4a Entering the Zero Cutoff
Near zero flow, the Model GS868’s readings may fluctuate due to small offsets caused by thermal drift or similar
factors. To force a zero reading when there is minimal flow, enter a zero cutoff value as described below:
2. Enter the desired Zero Cutoff value and press the
values from 0–1 ft/s (0–0.3 m/s) are acceptable. The menu returns to the main I/O prompt.
[ENT] key. A value of 0.1 ft/s (0.03 m/s) is recommended, but
1.7.4b Entering the Steam Input
3. At the Assume Saturation prompt, press [F1] = NO to use temperature and pressure to determine the state of the
steam, or press
4. At the Steam Input Type prompt, press
[F2] for the GS868 to assume the steam is saturated.
[F1] to select a temperature input, or [F2] to select a pressure input.
• If you select TEMP, go to step 5.
• If you select PRESR, go to step 7 on the next page.
1.7.4c Entering the Temperature Input
5. At the Temperature Input prompt, press [F1] to enter a constant temperature value or press [Fx] to select the option
card in Slot x that will supply the live temperature input.
Note: Each slot that contains an option card with an analog input assigned to
the option bar. If the process temperature is stable, a fixed value may be used, but most applications require a
live temperature input.
6. Do one of the following:
TEMP or an RTD input will appear on
• If you selected FIXED, enter the known fixed process temperature. Press [ENT]. (The meter will only accept values
from –148° to 662°F.)
• If you selected SLOT X,
a. Press
Note: The set up of input A is used as an example. Identical procedures would be used to set up input B.
b. Enter the Base Temperature (from –148° to 662 °F), and press
DigitalFlow™ GS868 Programming Manual (2-Channel) 15
[F1] to select input A or press [F2] to select input B.The inputs were labeled during setup.
[ENT]. The ratio of this value to the actual
temperature is used to calculate the standard volumetric flow.
Chapter 1. Programming Site Data
1.7.4d Entering the Pressure Input
7. At the Pressure Input prompt, press [F1] to enter a constant pressure value or press [Fx] to select the option card in
Slot X that will supply the live pressure input.
Note: Each slot that contains an option card with an analog input assigned to
the process pressure is stable, a fixed value may be used, but most applications require a live pressure input.
8. Do one of the following:
PRESR will appear on the option bar. If
• If you selected FIXED, enter the known fixed process pressure. Press [ENT]. (The meter will only accept values
from 0–5000 psia.)
• If you selected SLOT X,
a. Press
b. Enter the Base Pressure (standard) value for the process, and press the
c. Press
[F1] to select input A or press [F2] to select input B.The inputs were labeled during setup.
[ENT] key. (The meter will only accept
values from 0–5000 psia.)
[F2] = YES to activate the Low Pressure Switch, or press [F1] = NO to turn the switch off.
• If you selected NO, proceed to step 9.
• If you selected YES, enter the Pressure Limit (the setpoint for the low pressure switch) and press [ENT]. The
acceptable range is 0 to 5,000 psia. If the pressure drops below the pressure limit, the GS868 will stop taking
readings.
1.7.4e Entering the Quality Input Value
9. At the Quality Input prompt, press [F1] to enter a constant steam quality value or press [Fx] to select the option card
in Slot X that will supply the live steam quality input. This value is used for mass flow calculations when the
temperature and pressure inputs indicate that the steam is saturated. Unless a different value is accurately known,
accept the default value.
Note: Each slot that contains an option card with an analog input that has been programmed as
submenu appears on the option bar. Normally, a fixed value of 1.0 (100% steam) should be used for the steam
quality value.
10.Do one of the following:
SPEC in the OPTN
• If you selected FIXED, enter the known fixed steam quality. Press [ENT]. (The meter will only accept values from
0.0000 to 1.0000.)
• If you selected SLOT X,
a. Press
[F1] to select input A or press [F2] to select input B.The inputs were labeled during setup.
16 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
Procedure Options
After completing the above steps, the meter returns to the main I/O prompt. Continue as follows:
• To continue programming the meter, refer to the menu maps in Appendix A of the Programming Manual and
navigate to the desired menu. Then, proceed to the appropriate section of the manual for instructions.
• To leave the User Program and retain the previous settings, press [EXIT] twice and then press [F1] = NO at the
SAVE prompt. Any programming changes will be discarded and you will be returned to the data display.
• To leave the User Program and return to measurement mode, press [EXIT] twice and then press [F2] = YES at the
SAVE prompt. Your programming changes will be entered into the meter’s memory, and you will be returned to
the data display.
DigitalFlow™ GS868 Programming Manual (2-Channel) 17
Chapter 1. Programming Site Data
1.7.5 Entering Setup Data
The signal limits and response times for the Model GS868 are specified via the SETUP submenu. While following the
programming instructions, refer to the menu map in Figure 12 on page 96 in Appendix A, Menu Maps. The following
three submenus are included in this section:
• SIGNL - set the parameters related to the transducer signal
• AVRG - specify the response of the meter to step changes
• INIT - initialize all parameters to default values.
• ADVAN - setting parameters for mass flow and multiple K-factors.
Enter the
Chan 1 SETUP
Channel PROGRAM
SET UP
SET UP
last selection appears here
SIGNL AVRG INIT ADVAN
Proceed to the appropriate section to program the option selection made at the above prompt. Remember to record all
programmed data in Appendix B, Data Records.
SETUP submenu by pressing ] and [F1] at the Channel PROGRAM prompt and complete the following steps:
Press [F1]-[F3] to select the desired SETUP option.
18 DigitalFlow™ GS868 Programming Manual (2-Channel)
Chapter 1. Programming Site Data
1.7.5a Setting Transducer Signal Limits
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. Table 5 on
page 22 provides a summary of signal upper and lower limits and default values.
CAUTION!
The SIGNL default settings are suitable for most applications. Before changing any of
these parameters, consult the factory.
Complete the following steps to enter the signal parameters:
1. Press
The default value for this parameter is 20 and values from –20 to 100 are acceptable. The
appears when the signal strength falls below the programmed
[ENT] to accept the current Signal Low Limit value or enter a new value and press [ENT].
E1: LOW SIGNAL error message
SIGNAL LOW LIMIT value. See the Service Manual for a
discussion of error codes.
2. Press
The default value for this parameter is 100 and values from 0 to 500 are acceptable. The
message appears when the signal quality falls below the programmed
[ENT] to accept the current Cor. Peak Limit value or enter a new value and press [ENT].
E4: SIGNAL QUALITY error
COR. PEAK LIMIT value. See the Service Manual
for a discussion of error codes.
3. Press
The default value for this parameter is 20% and values from 1% to 50% are acceptable. The
[ENT] to accept the current Soundspeed +– Limit value or enter a new value and press [ENT].
E2: SOUNDSPEED error
message appears when the calculated fluid soundspeed differs from the fluid soundspeed entered in the
by more than the programmed
SOUNDSPEED +– LIMIT value. See the Service Manual for a discussion of error codes.
SYSTEM menu
4. Press
[ENT] to accept the current Velocity Low Limit value or enter a new value and press [ENT].
The default value for this parameter is –275.0 ft/sec (-85 m/sec) and values from –500 to 500 ft/sec (–150 to 150 m/sec)
are acceptable. The
programmed
5. Press
VELOCITY LOW LIMIT value. See the Service Manual for a discussion of error codes.
[ENT] to accept the current Velocity High Limit value or enter a new value and press [ENT].
E3: VELOCITY RANGE error message appears when the calculated fluid velocity is less than the
The default value for this parameter is 275.0 ft/sec (85 m/sec) and values from –500 to 500 ft/sec (–150 to 150 m/sec)
are acceptable. The
programmed
6. Press
VELOCITY HIGH LIMIT value. See the Service Manual for a discussion of error codes.
[ENT] to accept the current Acceleration value or enter a new value and press [ENT].
The default value for this parameter is 100.0 ft/sec
acceptable. The
programmed
ACCELERATION LIMIT value from one reading to the next. See the Service Manual for a discussion of error
E3: VELOCITY RANGE error message appears when the calculated fluid velocity exceeds the
2
(30.48 m/sec2) and values from 0 to 250 ft/sec2 (0 to 76 m/sec2) are
E6: CYCLE SKIP error message appears when the calculated fluid velocity changes by more than the
codes.
7. Press
[ENT] to accept the current Amp. Discrim Low value or enter a new value and press [ENT].
DigitalFlow™ GS868 Programming Manual (2-Channel) 19
Chapter 1. Programming Site Data
1.7.5a Setting Transducer Signal Limits (cont.)
IMPORTANT: Consult the factory before performing this step.
The amplitude discriminator measures the size of the transducer signal received by the Model GS868. The default
value for this parameter is 14 and values from 0 to 100 are acceptable. The
the amplitude discriminator falls below the programmed
AMP. DISCRIM LOW value. See the Service Manual for a
discussion of error codes.
E5: AMPLITUDE error message appears when
8. Press
IMPORTANT: Consult the factory before performing this step.
[ENT] to accept the current Amp. Discrim High value or enter a new value and press [ENT].
The amplitude discriminator measures the size of the transducer signal received by the Model GS868. The default
value for this parameter is 34 and values from 0 to 100 are acceptable. The
the amplitude discriminator exceeds the programmed
AMP. DISCRIM HIGH value. See the Service Manual for a discussion
E5: AMPLITUDE error message appears when
of error codes.
9. Press
IMPORTANT: Consult the factory before performing this step.
[ENT] to accept the current Delta T Offset value or enter a new value and press [ENT].
An offset between the upstream and downstream transit times is specified at this prompt. The default value for this
parameter is 0 sec and values from –1000 to 1000 sec are acceptable.
10. Press
[ENT] to accept the current Skan T Offset value or enter a new value and press [ENT].
At this prompt, specify a time measurement offset that compensates for any shift resulting from cross-correlation. The
default value for this parameter is 58 sec and values from –500 to 500 sec are acceptable.
Note: If you enter a value of 0 for this command, you enable a special mode of operation, ACTIVE SKAN T-OFFSET,
that dynamically calculates the offset.
11. Press
[ENT] to accept the current % of Peak value or enter a new value and press [ENT].
The percentage of peak used to calculate the transit times and Delta T is specified at this prompt. The default value for
this parameter is 50% and values from 1 to 100% are acceptable.
12. Use the [ and
IMPORTANT: Consult the factory before performing this step.
[F1]-[F4] keys to select one of the preset values for the XMIT Sample Size from the option bar.
Both the upstream and downstream transducers transmit ultrasonic pulses in bursts, which consist of a series of
transmit pulses.
XMIT SAMPLE SIZE determines how many bursts are sent in one direction before sending in the other
direction. The default value for this parameter is 8 and values of 2, 4, 8, 16 and 32 are acceptable.
13. Press
IMPORTANT: Consult the factory before performing this step.
[ENT] to accept the current M>S_Switch value or enter a new value and press [ENT].
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 to do so by the factory. The default value for this
parameter is 50 sec and values from 0 to 250 sec are acceptable.
20 DigitalFlow™ GS868 Programming Manual (2-Channel)
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