GS868 Quick Start 2 MB
GE
Measurement & Control
Flow
DigitalFlow™ GS868
Panametrics Steam Ultrasonic Mass Flowmeter
Startup Guide
910-190U Rev. E1
February 2016
DigitalFlow™ GS868
Panametrics Steam Ultrasonic Mass Flowmeter
Startup Guide
910-190U Rev. E1
February 2016
www.gemeasurement.com
©2016 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 Startup Guide
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™ GS868 Startup Guide
Contents
Chapter 1. Installation
1.1
1.2
1.3
1.4
1.5
1.6
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Site Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.1 Electronics Console Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.2 Flowcell Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.3 Transducer Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.4 Cable Lengths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.5 Temperature and Pressure Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.6 Transducer Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installing a Flowcell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installing Temperature and Pressure Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting the GS868 Electronic Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Making the Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.6.1 Wiring the Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6.2 Wiring the Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.6.3 Wiring the 0/4-20 mA Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1.6.4 Wiring the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1.6.4a Wiring the RS232 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1.6.4b Wiring the RS485 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.6.4c Wiring the Ethernet Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
1.6.4d Wiring the MODBUS/TCP Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
1.6.5 Wiring the Foundation Fieldbus Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
1.6.6 Wiring an Alarms Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
1.6.7 Wiring a 0/4-20 mA Analog Inputs Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
1.6.8 Wiring a Totalizer/Frequency Outputs Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
1.6.9 Wiring an RTD Inputs Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
1.6.10 Wiring a 0/4-20 mA Analog Outputs Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
DigitalFlow™ GS868 Startup Guide
v
Contents
Chapter 2. Initial Setup
2.1
2.2
2.3
2.4
2.5
2.6
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Navigating Through the User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Accessing the User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Activating a Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.4.1 1-Channel Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.4.2 2-Channel Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.4.3 1 and 2-Channel Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Entering System Data for a Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
2.5.1 A 1-Channel Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
2.5.2 A 2-Channel Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
2.5.3 1 and 2-Channel Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Entering Pipe Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.6.1 Transducer Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.6.2 Pipe OD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.6.3 Pipe Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.6.4 Path Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
2.6.5 Axial Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
2.6.6 Fluid Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
2.6.7 Reynolds Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
2.6.8 Calibration Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Chapter 3. Operation
3.1
3.2
3.3
3.4
vi
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Using the Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Taking Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
3.4.1 Foundation Fieldbus Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
DigitalFlow™ GS868 Startup Guide
Contents
Chapter 4. Specifications
4.1
4.2
4.3
4.4
4.5
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.1.1 Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.1.2 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.1.3 Flow Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.1.4 Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.1.5 Rangeability (Overall) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.1.6 Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.1.7 Response Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.2.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.2.2 Power Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.2.3 Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.2.4 European Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.2.5 Input/Output Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Operational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
4.3.1 Flow Computer (Built-in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
4.3.2 Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
4.3.3 Display Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
4.3.4 Printer Signal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
4.4.1 Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
4.4.2 Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
4.4.3 Pressure Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
4.4.4 Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
4.4.5 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Flowcell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Appendix A. CE Mark Compliance
A.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
A.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
A.3 External Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Appendix B. Data Records
B.1
B.2
Option Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Initial Setup Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Appendix C. Optional Enclosures
C.1
C.2
C.3
C.4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Rack Mount Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Rack Mount Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Rack Mount Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
DigitalFlow™ GS868 Startup Guide
vii
Contents
Appendix D. Measuring P and L Dimensions
D.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
D.2 Measuring P and L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
• Special Conditions for Safe Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 EU / EEA Installation Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Increased Safety Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Power Connection: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 All Other Screw Terminal Connections:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
viii
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
Chapter 1.
1.1
Installation
Introduction
To ensure safe and reliable operation of the Model GS868 Steam Ultrasonic Mass Flowmeter, the system must be
installed in accordance with the guidelines established by GE’s engineers. Those guidelines, which are explained in
detail in this chapter, include the following specific topics:
•
Unpacking the Model GS868 system
•
Selecting a suitable site for the electronics console and the flowcell/transducers
•
Installing a flowcell
•
Installing temperature and pressure transmitters
•
Installing the Electronics Console
•
Wiring the Electronics Console.
WARNING! The Model GS868 flowmeter can measure the flow rate of many gases, some of
which are potentially hazardous. In such cases, the importance of proper safety practices cannot
be overemphasized.
Be sure to follow all applicable local safety codes and regulations for installing electrical
equipment and working with hazardous gases or flow conditions. Consult company safety
personnel or local safety authorities to verify the safety of any procedure or practice.
ATTENTION EUROPEAN CUSTOMERS! In order to meet CE Mark requirements, all wiring
connections must be made in accordance with the instructions in Appendix A, CE Mark
Compliance.
1.1.1 Unpacking
Carefully remove the electronics console, the transducers, and the cables from the shipping containers. Before
discarding any of the packing materials, account for all components and documentation listed on the packing slip. The
discarding of an important item along with the packing materials is all too common. If anything is missing or damaged,
contact the factory immediately for assistance.
DigitalFlow™ GS868 Startup Guide
1
Chapter 1. Installation
1.2
Site Considerations
Because the relative physical locations of the flowcell and the Model GS868 electronics console are important, use the
guidelines given in this section to plan the Model GS868 system installation.
1.2.1 Electronics Console Location
The standard Model GS868 electronics enclosure is a Type-4X weather-resistant, dust-tight, indoor/outdoor type.
Typically, the electronics console is mounted in a meter shed. When choosing a mounting site, make sure that the
location permits easy access to the console for programming, testing, and servicing.
Note: For compliance with the European Union’s Low Voltage Directive, this unit requires an external power
disconnect device such as a switch or circuit breaker. The disconnect device must be marked as such, clearly
visible, directly accessible, and located within 1.8 m (6 ft) of the Model GS868.
1.2.2 Flowcell Location
The pipeline flowcell consists of the flowmeter transducers and any pressure and/or temperature transducers employed
as part of the flowmeter system. Ideally, choose a section of pipe with unlimited access as the flowcell; for example, a
long stretch of pipe that is above ground. However, if the flowcell is mounted on an underground pipe, dig a pit around
the pipe to facilitate installation of the transducer mechanisms.
1.2.3 Transducer Location
For a given fluid and pipe, the Model GS868’s accuracy depends primarily on the location and alignment of the
transducers. In addition to accessibility, when planning for transducer location, adhere to the following guidelines:
1. Locate the transducers so that there are at least 20 pipe diameters of straight, undisturbed flow upstream and 10
pipe diameters of straight, undisturbed flow downstream from the measurement point. To ensure undisturbed flow,
avoid: sources of turbulence in the fluid such as valves, flanges, expansions and elbows; swirl; and dips or low
spots in which condensed liquid may collect.
2. Because condensate or sediment at the bottom of the pipe may cause attenuation of the ultrasonic signal, locate the
transducers on the side of a horizontal pipe, where possible. If limited pipe access necessitates top-mounted
transducers and the sound beam path includes a reflection, shift the transducers to at least 10° off top center. This
will minimize the influence of any sediment on the reflected ultrasonic signals.
1.2.4 Cable Lengths
Locate the flowcell/transducers as close as possible to the electronics console. The factory supplies transducer cables
up to 500 ft (153 m) in length. If longer cables are required, consult the factory for assistance.
1.2.5 Temperature and Pressure Transmitters
When installing temperature and/or pressure transmitters in the flowcell, locate them downstream of the flowmeter
transducers. These transmitters should be positioned no closer to the flowmeter transducers than 2 pipe diameters and
no further away from the flowmeter transducers than 20 pipe diameters.
2
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.2.6 Transducer Cables
When installing the transducer cables, always observe established standard practices for the installation of electrical
cables. Specifically, do not route transducer cables alongside high amperage AC power lines or any other cables that
could cause electrical interference. Also, protect the transducer cables and connections from the weather and corrosive
atmospheres.
Note: When using non-GE cables to connect the flowmeter transducers to the Model GS868 electronics console, the
cables must have electrical characteristics identical to the GE cables. Type RG 62 a/u coaxial cable should be
used, and each cable must be the same length (within ±4 in.).
1.3
Installing a Flowcell
A flowcell is the section of pipe where the transducers are mounted. It can be created either by mounting the
transducers on the existing pipeline or by mounting them on a spoolpiece. A spoolpiece is a separately manufactured
pipe section, matched to the existing pipe, which contains ports for mounting the transducers. This approach allows the
transducers to be aligned and calibrated before inserting the spoolpiece into the pipeline.
Figure 1 on page 4 shows a block diagram of a typical Model GS868 system, including optional pressure and
temperature transmitters. For detailed instructions on installing the transducers and/or spoolpiece, refer to the supplied
drawings and the GE Gas Transducer Installation Guide for Ultrasonic Flowmeters.
DigitalFlow™ GS868 Startup Guide
3
Chapter 1. Installation
Temperature Transmitter
Pressure Transmitter
Preamp
Transducer
Flowcell
STEAM
FLOW
Transducer
Electronics Console
Figure 1: A Typical Model GS868 System
4
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.4
Installing Temperature and Pressure Transmitters
Optional temperature and pressure transmitters may be installed as part of the flowcell, near the ultrasonic transducer
ports. Be sure to observe the siting requirements given earlier in this chapter. These transmitters must use a 0/4-20 mA
signal to transmit the temperature and pressure values to the Model GS868 electronics console. In turn, the electronics
console will provide a 24 VDC signal to power the transmitters. Any desired transmitters or sensors may be used, but
they must have an accuracy equal to 0.5% of the reading or better.
Note: Resistive Thermal Devices (RTDs) are a good choice for measuring the temperature.
Typically, a 1/2” or 3/4” NPT female threaded port is used to mount the transmitters on the flowcell. If the pipeline is
insulated, the coupling may need to be extended to provide convenient access. Of course, other types of mounting
ports, including flanged ports, may be used for the transmitters.
IMPORTANT: Under changing temperature and pressure conditions, the Model GS868 can calculate accurate steam
density and mass flow only if temperature and pressure transmitters have been installed.
Figure 2 below shows a typical mounting arrangement for the pressure and temperature transmitters. The temperature
sensor should protrude 1/4 to 1/2 way into the pipe.
Temperature Transmitter
Pressure Transmitter
RTD
Isolation Valve
Thermowell
Coupling
Flowcell Wall
Figure 2: Typical Temperature/Pressure Transmitter Mounting
DigitalFlow™ GS868 Startup Guide
5
Chapter 1. Installation
1.5
Mounting the GS868 Electronic Console
The standard model GS868 electronics package is housed in a Type-4X weather-resistant enclosure. Refer to Figure 9
on page 19 for the mounting dimensions of this enclosure.
IMPORTANT: For meters supplied in one of the optional enclosure styles, refer to Appendix C, Optional Enclosures, for
specific mounting dimensions and instructions.
WARNING! Proper grounding of the GS868 chassis is required to prevent the possibility of
electric shock. See Figure 10 on page 20 to locate the internal ground connection.
1.6
Making the Electrical Connections
ATTENTION EUROPEAN CUSTOMERS! In order to meet CE Mark requirements, all wiring
connections must be made in accordance with the instructions in Appendix A, CE Mark
Compliance.
This section contains instructions for making all the necessary electrical connections to the Model GS868 flowmeter.
Refer to Figure 10 on page 20 for a complete wiring diagram of the unit.
IMPORTANT: For meters supplied in one of the optional enclosure styles, refer to Appendix C, Optional Enclosures, for
the appropriate wiring diagram and specific wiring instructions.
Except for the power connector, all electrical connectors are stored in their terminal blocks during shipment and may be
removed from the enclosure for more convenient wiring. Feed the cables through the conduit holes on the bottom of the
enclosure, attach the wires to the appropriate connectors and plug the connectors back into their terminal blocks.
Note: For compliance with the European Union’s Low Voltage Directive, a transparent plastic shroud protects the
electrical connections. The shroud must remain in place, except while wiring the unit. Reinstall the shroud
after the wiring has been completed.
Once the Model GS868 is completely wired, proceed to Chapter 2, Initial Setup, to configure the unit for operation.
6
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.6.1 Wiring the Line Power
ATTENTION EUROPEAN CUSTOMERS! In order to meet CE Mark requirements, all wiring
connections must be made in accordance with the instructions in Appendix A, CE Mark
Compliance.
The Model GS868 may be ordered for operation with power inputs of 100-120 VAC, 220-240 VAC, or 12-28 VDC.
The label on the shroud inside the electronics enclosure, just above the TB1 line power terminal block, lists the required
line voltage and the fuse rating for the unit (the fuse rating is also listed in Chapter 4, Specifications). Be sure to
connect the meter only to the specified line voltage.
Note: For compliance with the European Union’s Low Voltage Directive, this unit requires an external power
disconnect device such as a switch or circuit breaker. The disconnect device must be marked as such, clearly
visible, directly accessible, and located within 1.8 m (6 ft) of the Model GS868.
Note: Only use Class 2 Rated Power supply for line power connection to DC instrument.
Refer to Figure 3 on page 8 or Figure 10 on page 20 to locate terminal block TB1 and connect the line power as follows:
WARNING! Improper connection of the line power leads or connecting the meter to the
incorrect line voltage will damage the unit. It will also result in hazardous voltages at the flowcell
and associated piping and within the electronics console.
DigitalFlow™ GS868 Startup Guide
7
Chapter 1. Installation
1.6.1 Wiring the Line Power (cont.)
1. Remove the plastic shroud that covers the terminal blocks. Be sure to reinstall the shroud after all of the wiring has
been completed.
2. Strip ¼” of insulation from the end of the power and neutral or line leads (or the positive and negative DC power
leads), and ½” from the end of the ground lead.
3. Connect the ground lead to the internal ground connection located on the side panel of the inclosure (see Figure 3
below).
IMPORTANT: The incoming ground lead must be connected to the internal ground connection.
4. Connect the neutral or line lead (or the negative – DC power lead) to TB1-2 and the line power lead (or the positive
+ DC power lead) to TB1-3 as shown in Figure 3 below.
IMPORTANT: Do not remove the existing PC board ground wire or the cover ground wire.
G – + DC
G N/L2 L1 AC
PC Board
Ground Wire
TB1
Cover
Ground Wire
1
2
3
AC Line Power
or DC +
und
Gro
Internal
Ground
Connection
AC Neutral/Line
or DC –
Figure 3: Wiring the Line Power
8
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.6.2 Wiring the Transducers
ATTENTION EUROPEAN CUSTOMERS! In order to meet CE Mark requirements, all wiring
connections must be made in accordance with the instructions in Appendix A, CE Mark
Compliance.
Wiring a typical Model GS868 ultrasonic natural gas flowmeter system requires interconnection of the following
components:
•
a pair of transducers (per channel) mounted in the flowcell
•
a preamplifier for each channel
•
a lightning protector (optional)
•
the electronics console
To wire the transducers, complete the following steps:
WARNING! Before connecting the transducers, take them to a safe area and discharge any
static buildup by shorting the center conductor of the transducer cables to the metal shield on
the cable connector.
1. Using the pair of coaxial cables with BNC to BNC connectors supplied by the factory (or equivalent cables),
connect both transducers to the preamplifier.
CAUTION!
As part of maintaining the FM/CSA environmental rating (TYPE 4) on the remote
preamplifier, thread sealant is required on all conduit entries.
2. If an optional lightning protector is being installed, connect it to the preamplifier.
3. Using the pair of coaxial cables with BNC to flying lead connectors supplied by the factory (or equivalent cables),
connect the preamplifier to terminal block CH1 in the electronics console. Refer to Figure 10 on page 20 for the
location of the terminal block and the terminal block pin assignments.
4. For a 2-channel Model GS868 flowmeter, repeat steps 1-3 to wire the Channel 2 transducer system to terminal
block CH2.
Note: It is not required that Channel 2 of a 2-channel Model GS868 be used. This channel may be left inactive for
future use.
After the wiring has been completed, the transducer channel(s) must be activated before measurements can begin. See
Chapter 2, Initial Setup, for instructions.
DigitalFlow™ GS868 Startup Guide
9
Chapter 1. Installation
1.6.3 Wiring the 0/4-20 mA Analog Outputs
The standard configuration of the Model GS868 flowmeter includes two isolated 0/4-20 mA analog outputs
(designated as A and B). Connections to these outputs may be made with standard twisted-pair wiring. The current loop
impedance for these circuits must not exceed 550 ohms.
Refer to Figure 10 on page 20 for the location of terminal block I/O and wire the terminal block as shown.
1.6.4 Wiring the Serial Port
The Model GS868 is equipped with a built-in serial communications port. The standard port is an RS232 interface, but
an optional RS485 interface is available upon request. Proceed to the appropriate sub-section for wiring instructions.
For more information on serial communications, refer to the EIA-RS Serial Communications Manual (916-054).
1.6.4a
Wiring the RS232 Interface
The RS232 communications port provides a serial interface for connecting the Model GS868 flowmeter to a printer, an
ANSI terminal or a personal computer.
The RS232 serial interface is wired as Data Terminal Equipment (DTE), and the signals available at the Model GS868
RS232 terminal block are shown in Table 1 below. Refer to Figure 8 on page 16 to locate terminal block RS232 and
complete the following steps to wire the terminal:
1. Use the information in Table 1 below to construct a suitable cable for connecting the Model GS868 to the external
device. If desired, an appropriate cable may be purchased from GE.
Table 1: RS232 Connection to DCE or DTE Device
DCE
DTE
DTE
DB25
DB25
DB9
RS232
Pin #
Signal Description
Pin #
Pin #
Pin #
1
RTN (Return)
7
7
5
2
TX (Transmit)
3
2
3
3
RX (Receive)
2
3
2
4
DTR (Data Terminal Ready)
20
20
4
5
CTS (Clear to Send)
4
5
8
2. Wire the flying leads end of the cable to terminal block RS232 and connect the other end of the cable to the printer,
ANSI terminal or personal computer.
After the wiring has been completed, consult the User’s Manual for the external device to configure it for use with the
Model GS868.
10
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.6.4b
Wiring the RS485 Interface
Use the optional RS485 serial port to network multiple GS868 flowmeters to a single computer terminal. Upon request,
the standard RS232 port on the GS868 may be configured as a two-wire, half-duplex RS485 interface, through a device
such as the INMAC Model 800052 RS232-RS422/RS485 converter.
To wire the RS485 serial port, refer to Figure 10 on page 20 and complete the following steps:
1. Disconnect the main power to the unit and remove the cover.
2. Install the required cable clamp in the chosen conduit hole on the side of the electronics enclosure.
3. Feed one end of the cable through the conduit hole, wire it to terminal block J1 and secure the cable clamp.
Connect the other end of the cable to the converter, as shown in Figure 4 below.
GS868
NC 6
NC 7
RX 8
TX 9
Converter
1 TD OUT
2
3
4 RD IN
Figure 4: Typical RS485 Connections
ATTENTION EUROPEAN CUSTOMERS! In order to meet CE Mark requirements, all wiring
connections must be made in accordance with the instructions in Appendix A, CE Mark
Compliance.
4. If wiring of the unit has been completed, reinstall the rear cover on the enclosure and tighten the set screw.
DigitalFlow™ GS868 Startup Guide
11
Chapter 1. Installation
1.6.4c
Wiring the Ethernet Interface
A modified GS868 can use the Ethernet interface to communicate to an internal network. An optional Ethernet card
with a unique MAC (IP) address (installed only in slots 5 or 6) includes an RJ45 connector. To connect the Ethernetenabled GS868 to the network, insert the jack of an RJ45 cable into the RJ45 connector, route the cable through the
bottom of the GS868, and wire the other end of the cable to the Ethernet network according to the manufacturer’s
instructions. An external connection is required between the Ethernet option card and the GS868’s RS232 connector, as
shown in Table 2 below.
Note: The MAC address for a specific GS868 is included with customer documentation. For more information on
setting up the MAC address, refer to Chapter 6 of the Programming Manual.
Table 2: RS232 to Ethernet Interconnections
GS868 Type
Terminal Block
Terminal Block
Wall Mount
Rack Mount
1.6.4d
RS232 on Main Board
TB1 on Ethernet Card
TX
Pin 1
RX
Pin 2
RTN
Pin 3
RS232 on Main Board
TB2 on Ethernet Card
TX
Pin 1
RX
Pin 2
RTN
Pin 3
Wiring the MODBUS/TCP Interface
Customers can also use a modified GS868 that provides a MODBUS/TCP interface to communicate to an internal
network. An optional MODBUS/TCP card with a unique MAC (IP) address (installed only in slots 5 or 6) includes an
RJ45 connector. To connect the MODBUS/TCP-enabled GS868 to the network, insert the jack of an RJ45 cable into
the RJ45 connector, route the cable through the bottom of the GS868, and wire the other end of the cable to the Ethernet
network according to the manufacturer’s instructions.
Note: The MAC address for a specific GS868 is included with customer documentation. For more information on
setting up the MAC address, refer to Chapter 6 of the Programming Manual.
12
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.6.5 Wiring the Foundation Fieldbus Network
Fieldbus network connections are made at J8/J9, pins 1 and 2 (see Figure 5 below). Optionally, a shield can be
connected to J8/J9 pin 3, depending on the network wiring. Connector J8 or J9 will be installed depending on the
option ordered by the customer.
No connections are made to J8/J9, pins 7 and 9, under normal operation. If it is desired to reset the network board to
factory defaults:
1. Connect a jumper between J8/J9 pin 7 and pin 9.
2. Power cycle the instrument.
3. Ten seconds after the power has been restored to the unit, remove the jumper to return the network board to normal
operation.
9
J9
1
9
J8
1
Figure 5: Network Connections - Standard Option Interior
DigitalFlow™ GS868 Startup Guide
13
Chapter 1. Installation
1.6.6 Wiring an Alarms Option Card
The Model GS868 flowmeter can accommodate up to 4 alarms option cards. Each alarms option card includes three
Form C relays (designated as A, B and C).
The alarm relays on the option card are available in two types:
•
general purpose
•
hermetically sealed for Class I, Division 2 hazardous areas.
The maximum electrical ratings for the relays are listed in Chapter 4, Specifications. Each of the three alarm relays can
be wired either as Normally Open (NO) or Normally Closed (NC).
In setting up an alarm relay, it may be wired for either conventional or fail-safe operation. In fail-safe mode, the alarm
relay is constantly energized, except when it is triggered or a power failure or other interruption occurs. See Figure 6
below for the operation of a NO alarm relay in both conventional and fail-safe mode.
Connect the two wires required for each alarm relay in accordance with the pin number assignments shown in
Figure 10 on page 20.
Conventional,
not triggered
Fail-Safe,
not triggered
NO
C
NO
C
NC
NC
Alarm
Monitoring
Device
Alarm
Monitoring
Device
Conventional,
triggered
Fail-Safe,
triggered or power failure
NO
C
NO
C
NC
NC
Alarm
Monitoring
Device
Alarm
Monitoring
Device
Figure 6: Conventional and Fail-Safe Operation
14
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.6.7 Wiring a 0/4-20 mA Analog Inputs Option Card
To calculate the standard mass flow rates of the steam, the Model GS868 requires accurate temperature and pressure
data from the measurement site. Transmitters installed in the flowcell can provide this information via an optional 0/420 mA analog inputs card. This option card includes two isolated 0/4-20 mA analog inputs (designated as A and B),
each of which includes a 24 VDC power supply for loop-powered transmitters. Either input may be used to process the
temperature signal, while the other input is used to process the pressure signal.
Note: To enter programming data during operation of the meter, it will be necessary to know which input is assigned
to which process parameter. This information should have been entered in Appendix B, Data Records.
The analog inputs, which have an impedance of 118 ohms, should be connected with standard twisted-pair wiring.
Power to the transmitters may be supplied either by the integral 24 VDC power supply on the analog input card or by
an external power supply. Figure 7 below shows typical wiring diagrams, with and without an external power supply,
for one of the analog inputs.
With External Power Supply
24 VDC
POWER SUPPLY
–
+
Analog Input
Transmitter
RTN 4
+ IN
INLO 3
Sensor
– OUT
INHI 2
+24V 1
Analog Input
RTN 4
Jumper
Transmitter
INLO 3
– OUT
INHI 2
+24V 1
Sensor
+ IN
With Internal Power Supply
Figure 7: Analog Input Wiring Diagram
DigitalFlow™ GS868 Startup Guide
15
Chapter 1. Installation
1.6.7 Wiring a 0/4-20 mA Analog Inputs Option Card (cont.)
Wire the analog input terminal block in accordance with the pin number assignments shown in Figure 10 on page 20.
The standard Model GS868 has at least one analog inputs option card, which is used to supply the live pressure reading
required for accurate mass flow calculations. These option cards are identical to the temperature/pressure card
described above and they should be wired in the same manner (see Figure 6 on page 14).
Note: The analog inputs option card can be calibrated with the Model GS868’s built-in analog outputs. However, be
certain that the analog outputs have been calibrated first. See Chapter 1, Calibration, in the Service Manual
for the appropriate procedures.
1.6.8 Wiring a Totalizer/Frequency Outputs Option Card
The Model GS868 can accommodate up to four totalizer/frequency outputs option cards. Each totalizer/frequency
outputs option card provides four outputs (designated as A, B, C, and D) that can be used as either totalizer or
frequency outputs.
Each totalizer/frequency output requires two
wires. Wire
this terminal
[no content
intended
for thisblock
page]in accordance with the pin number
assignments shown in Figure 10 on page 20. Figure 8 below shows sample wiring diagrams of a totalizer output circuit
and a frequency output circuit.
Totalizer Output
Model GS868
Pulse Counter
Max. Current:
Max. Voltage:
Isolation Voltage:
Max. Load Power:
4A
150V
500V
10W In
Volts +
(Int. Pwr. Sup.)
NO
Load
C
C = Isolated Return
Volts –
(Common)
Frequency Output
Model GS868
Frequency Counter
+5V
200 :
IN
NO
Common
C
C = Isolated Return
Figure 8: Totalizer/Frequency Outputs Wiring
16
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
1.6.9 Wiring an RTD Inputs Option Card
The Model GS868 can accommodate up to four RTD (Resistance Temperature Device) inputs option cards. Each RTD
inputs option card provides two direct RTD inputs (designated as A and B).
The standard Model GS868 has at least one RTD inputs option card, which is used to supply the live temperature
reading required for accurate mass flow calculations. Each RTD input requires three wires, which should be fed
through one of the conduit holes on the bottom of the electronic console. Wire this terminal block in accordance with
the pin number assignments shown in Figure 10 on page 20.
1.6.10 Wiring a 0/4-20 mA Analog Outputs Option Card
The Model GS868 flowmeter can accommodate up to 4 analog outputs option cards. Each analog outputs option card
includes four isolated 0/4-20 mA outputs (designated as A, B, C and D).
Connections to these outputs may be made with standard twisted-pair wiring. The total current loop impedance for
these circuits must not exceed 1000 ohms. Wire this terminal block in accordance with the pin number assignments
shown in Figure 10 on page 20.
DigitalFlow™ GS868 Startup Guide
17
Chapter 1. Installation
[no content intended for this page]
18
DigitalFlow™ GS868 Startup Guide
Chapter 1. Installation
Ø0.38 (10), 4 Places
1.40 (36)
0.75 (19)
8.00 (203)
13.00
(330)
14.24
(362)
13.49
(343)
7.00
(178)
Ø0.13 (3), 4 Places
5.10 (129)
2.69 (68)
11.37 (289)
10.74 (273)
3/4" Conduit Plate
Ø1.10 (28), 6 Places
Figure 9: Model GS868 Type 4X Enclosure (ref. dwg #425-208)
2.87
(73)
1/2" Conduit Plate
1.54 (39)
1.30 (33)
1.77 (45)
1.65 (42)
2.26 (57)
2.26 (57)
1.20 (30)
1.50 (38)
Ø0.88 (22), 10 Places
DigitalFlow™ GS868 Startup Guide
19
Chapter 1. Installation
RS232 SERIAL PORT
RS485 PORT (MODBUS)
Description
Pin #
Description
1
RTN - Digital Return
1
TMT-
2
TX - Transmit
2
TMT+
3
RX - Receive
3
Unused
4
DTR - Data Terminal Ready
4
Unused
5
CTS - Clear to Send
5
Unused
WARNING
CH2 TRANSDUCER
Pin #
GATE
DRTN
TWIND
RWIND
RS485
ALARMS
ANALOG OUT
ANALOG IN
TOTL/FREQ
RTD IN
RCV
NOTE: For compliance with the European Union's Low Voltage
Directive, this unit requires an external power
disconnect device such as a switch or circuit breaker. The
disconnect device must be marked as such, clearly visible,
directly accessible and located within 1.8 m (6 ft) of the
Model GS868.
Description
1
Upstream SIG(+)
2
Upstream RTN(-)
3
Downstream RTN(-)
4
Downstream SIG(+)
2
1
0/4-20 mA ANALOG OUTPUTS
Pin #
Description
CHAN 2
DN
ANALOG OUT
B
A
- + - +
TB1 POWER INPUT
12 - 28 VDC
Pin #
OR
TB1 POWER INPUT
100 or 120 VAC
Pin #
Description
TB1 POWER INPUT
220 or 240 VAC
OR
Pin #
Description
Description
1
G - Earth Ground
1
G - Earth Ground
1
G - Earth Ground
2
– Negative
2
N - Line Neutral
2
L2 - Line Power
3
+ Positive
3
L1 - Line Power
3
L1 - Line Power
CHAN 1
RS 232
DN
C D R T R
T T X X T
S R
N
PC Board
Ground Wire
G
–
UP
S R R S
I T T I
G N N G
UP
S R R S
I T T I
G N N G
X
D
C
R
S
+
1
Output A - SIG(+)
2
Output A - RTN(-)
3
Output B - SIG(+)
4
Output B - RTN(-)
G N/L2 L1
Test Points
CH1 TRANSDUCER
Cover
Ground Wire
Pin #
NOTE: For compliance with the European Union's Low Voltage
Directive, a transparent plastic shroud protects
the electrical connections. The shroud must remain in place,
except while wiring the unit. Reinstall the shroud after the
wiring has been completed.
Internal Ground
Connection
Description
1
Upstream SIG(+)
2
Upstream RTN(-)
3
Downstream RTN(-)
4
Downstream SIG(+)
Plastic LVD Shroud
ALARM RELAYS
Pin #
Description
0/4-20 mA ANALOG OUTPUTS
1
Relay A - Normally Open (NO)
Pin #
Description
0/4-20 mA ANALOG INPUTS
Pin #
Description
RTD INPUTS
TOTALIZER/FREQUENCY OUTPUTS
Pin #
Description
Pin #
Description
2
Relay A - Common (C)
1
Output A - RTN(-)
1
Input A - +24V
1
Output A - Common (C)
1
Input A - SIG(+)
3
Relay A - Normally Closed (NC)
2
Output A - SIG(+)
2
Input A - INHI
2
Output A - Normally Open (NO)
2
Input A - Common (C)
4
Relay B - Normally Open (NO)
3
Output B - RTN(-)
3
Input A - INLO
3
Output B - Common (C)
3
Input A - Common (C)
NOTE
5
Relay B - Common (C)
4
Output B - SIG(+)
4
Input A - RTN
4
Output B - Normally Open (NO)
4
Unused
One option card of each
available type is shown in this
diagram. These cards are not
always installed in the same
slots used for this example.
6
Relay B - Normally Closed (NC)
5
Output C - RTN(-)
5
Input B - +24V
5
Output C - Common (C)
5
Input B - SIG(+)
7
Relay C - Normally Open (NO)
6
Output C - SIG(+)
6
Input B - INHI
6
Output C - Normally Open (NO)
6
Input B - Common (C)
8
Relay C - Common (C)
7
Output D - RTN(-)
7
Input B - INLO
7
Output D - Common (C)
7
Input B - Common (C)
9
Relay C - Normally Closed (NC)
8
Output D - SIG(+)
8
Input B - RTN
8
Output D - Normally Open (NO)
8
Unused
DigitalFlow™ GS868 Startup Guide
Figure 10: Model GS868 Electronics Console Wiring (ref. dwg #702-213, sht 1 of 2)
Pin #
20
Chapter 1. Installation
WIRING DETAIL, PRESSURE AND TEMPERATURE INPUTS
PREAMPLIFIER
USING EXTERNAL 24VDC SUPPLY
P
CR
U
XD
LE
O
NS
O
S/
C
N
D
S
IC
R
ET
AM
N EE868
PA PR N
D
N
(REFERENCE ONLY)
TRANSDUCER (REF ONLY)
24VDC
POWER SUPPLY
~
~
RED
1
PRESSURE TRANSMITTER
FLOW
~
~
TRANSDUCER (REF ONLY)
PIPE (REF ONLY)
+IN
PIN #
1
24V+
2
+IN1
3
-IN1
4
24V-
SENSOR
-OUT
C
P
U
XD
CR
S/
O
NS
O
LE
RED
PA PR N
N EE868
AM
ET
R
IC
S
D
N
D
N
BLK
4
(REFERENCE ONLY)
PRESSURE INPUT
GS868
COAXIAL CABLES, BNC TO BNC
(SUPPLIED BY GE) 10 FOOT
TEMPERATURE TRANSMITTER
(REFERENCE ONLY)
TEMPERATURE INPUT
GS868
PREAMPLIFIER
DUAL PREAMPLIFIER
+IN
PIN #
5
24V+
6
+IN2
7
-IN2
8
24V-
CAUTION!
As part of maintaining the FM/CSA environmental rating
(NEMA/TYPE 4) on the remote preamplifier, thread sealant
is required on all conduit entries.
SENSOR
-OUT
WIRING DETAIL, PRESSURE AND TEMPERATURE INPUTS
USING INTERNAL 24VDC SUPPLY
TRANSDUCER (REF ONLY)
PRESSURE INPUT (SOFTWARE ASSIGNED)
GS868
FLOW
COAXIAL CABLES, BNC TO BNC
(SUPPLIED BY GE) 10 FOOT
FLYING LEAD TO BNC COAX CABLES
(UP TO 1000 FEET)
SUPPLIED BY GE
U
P
1
P
C
D
S
IC
LE
N
O
NS
O
PR N
S/
TR
CR ME 868
XDPANA E
U
+IN1
3
-IN1
4
24V-
(REFERENCE ONLY)
+IN
SENSOR
-OUT
JUMPER WIRE
(NOT SUPPLIED)
PIN #
5
24V+
6
+IN2
7
-IN2
8
24V-
TEMPERATURE TRANSMITTER
(REFERENCE ONLY)
+IN
D
~
~
N
BLK
PREAMPLIFIER
4
PIPE (REF ONLY)
24V+
2
TEMPERATURE INPUT (SOFTWARE ASSIGNED)
GS868
~
~
RED
TRANSDUCER (REF ONLY)
PIN #
1
PRESSURE TRANSMITTER
Figure 11: Model GS868 Transducer Wiring (ref. dwg #702-213, sht 2 of 2)
FLYING LEAD TO BNC COAX CABLES
(UP TO 1000 FEET)
SUPPLIED BY GE
SENSOR
-OUT
JUMPER WIRE
(NOT SUPPLIED)
RED
SINGLE PREAMPLIFIER
DigitalFlow™ GS868 Startup Guide
21
Chapter 1. Installation
DigitalFlow™ GS868 Startup Guide
22
Chapter 2. Initial Setup
Chapter 2.
2.1
Initial Setup
Introduction
This chapter provides instructions for entering the minimum amount of programming data required to place the Model
GS868 flowmeter into operation. Before the Model GS868 can begin taking measurements and displaying valid data,
the current system and pipe parameters must be entered. In addition, a 2-Channel meter requires that each channel be
activated prior to use. Additional programming options provide access to the more advanced features of the Model
GS868, but this information is not required to begin taking measurements.
Note: See the Programming Manual for information on those User Program options not covered in this chapter.
2.2
Navigating Through the User Program
In order to begin using the Model GS868, the following submenus within the User Program will be accessed:
•
ACTIV - enables selection of the desired measurement method (for a 2-Channel meter, it is also used to activate a
channel)
•
SYSTM - prompts the user to enter the required system data
•
PIPE - prompts the user to enter the required pipe parameters
As a guide in following the programming instructions in this chapter, the relevant portions of the Model GS868 menu
map have been reproduced in Figure 12 on page 33.
Note: There are minor differences at the start of the ACTIV and SYSTM submenus for the 1-Channel and 2-Channel
models, but the PIPE submenus are identical.
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 [F1]-[F4] with [F5]-[F8]. Be sure to record all programming data in Appendix B,
Data Records.
Use the keypad, as described in the Programming Manual, to navigate through the User Program. The menu map may
be followed in sequence, or the ] and ] keys may be used to scroll through the prompt screens. The ] key may
be used to delete the last alphanumeric character that was entered from the keypad.
DigitalFlow™ GS868 Startup Guide
23
Chapter 2. Initial Setup
2.3
Accessing the User Program
To access the User Program, press the [PROG] key on the keypad.
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 in Chapter 1, Programming Site Data, of the Programming Manual for more
information.
For a 1-Channel Model GS868, the measurement mode screen is replaced by the following initial programming mode
screen:
PROGRAM
At the User Program screen shown, press the [F1] function key and
proceed to “Activating a Channel” section on page 25 for instructions.
Start
PROGRAM
status
ACTIV
SYSTM
PIPE
I/O
For a 2-Channel Model GS868, the following two-step sequence is required to reach the initial programming screen:
PROGRAM
Press [F1] or [F2] to select the submenu for Channel 1 or Channel 2,
respectively, from the option bar.
Start
PROGRAM
Channel 1
CH1
CH2
Chan 1
PROGR
GLOBL
SAVE
At the user program screen shown, press the [F1] function key and proceed
to “Activating a Channel” section on page 25 for instructions.
Start
Channel PROGRAM
status
ACTIV
SYSTM
PIPE
I/O
Only the submenus ACTIV, SYSTM and PIPE are discussed in this manual. Refer to the Programming Manual for
information on the other submenus.
Note: In this manual, only the programming of Channel 1 will be described. To program Channel 2, simply repeat the
same procedures presented for Channel 1.
24
DigitalFlow™ GS868 Startup Guide
Chapter 2. Initial Setup
2.4
Activating a Channel
The 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 GS868.
2.4.1 1-Channel Meter
1. Enter the ACTIV submenu by pressing [F1] at the User PROGRAM prompt.
2. Press [F1] to activate the channel in BURST mode.
2.4.2 2-Channel Meter
1. Enter the ACTIV submenu by pressing [F1] at the Channel PROGRAM prompt.
2. Press [F1] (OFF) to deactivate the channel and return to the Channel PROGRAM prompt, or press [F2] to activate the
channel in BURST mode.
2.4.3 1 and 2-Channel Meters
3. Press [F1] to select Skan mode or [F2] to select Skan/Measure mode. The meter will exit the ACTIV submenu and
return to the channel menu screen.
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.
Proceed directly to the next section to program the SYSTM submenu.
DigitalFlow™ GS868 Startup Guide
25
Chapter 2. Initial Setup
2.5
Entering System Data for a Channel
Begin the programming of the SYSTM submenu in either the 1-Channel or 2-Channel section below.
2.5.1 A 1-Channel Meter
For the 1-Channel Model GS868, the information entered in the SYSTM submenu pertains to the global operation of the
flowmeter.
1. At the User Program screen, press the [F2] function key to program the SYSTM submenu.
2. Enter a Site Label of up to 9 characters and press [ENT]. (While taking measurements, the site label will appear on
the locator bar.)
3. Enter a Site Message of up to 21 characters. Press [ENT].
4. To select the System Units, press [F1] to display parameters and measurements in English units, or press [F2] to
display parameters and measurements in Metric units.
5. Use the [F1]-[F4] keys to select the type of Pressure Units desired.
The abbreviations and definitions of all the available pressure units are shown in Table 3 below. The choices shown on
the option bar are determined by the selections made at the previous SYSTEM UNITS prompt.
Table 3: Available Pressure Units
English
Metric
PSIa = Pounds per square inch absolute
BARa = bar absolute
PSIg = Pounds per square inch gage
BARg = bar gage
kPaa = kiloPascals absolute
kPag - kiloPascals gage
a. If you have entered gage pressure, or the local atmospheric pressure (PSIg, BARg or kPag), use the numeric
keys to enter the gage pressure value. Press [ENT].
6. At the Stopwatch Totalizer prompt, press [F1] to totalize all liquid flow continuously, or [F2] to measure totals
manually with the Stopwatch Timer. (With MNUAL ([F2]), the console key on the keypad is used to start and stop the
totalizer. See the Programming Manual for details.)
The remainder of the SYSTM submenu is identical for the 1-Channel and 2-Channel versions of the Model GS868.
Proceed to the 1- and 2-Channel Meters section to complete the programming of this submenu.
26
DigitalFlow™ GS868 Startup Guide
Chapter 2. Initial Setup
2.5.2 A 2-Channel Meter
For the 2-Channel Model GS868, the information entered in the SYSTM submenu pertains only to the currently selected
channel.
1. At the User Program screen shown, press the [F2] function key to program the SYSTM submenu.
2. Enter a Channel Label of up to 9 characters. Press [ENT].
3. Enter a Channel Message of up to 21 characters. Press [ENT].
Note: For the 2-Channel Model GS868, the System Units, Pressure Units and Stopwatch Totalizer prompts, which are
not required to make the unit operational, are located in the GLOBL submenu. See the Programming Manual for
details.
The remainder of the SYSTM submenu is identical for the 1-Channel and 2-Channel versions of the Model GS868.
Proceed to the 1- and 2-Channel Meters section below to complete the programming of this submenu.
2.5.3 1 and 2-Channel Meters
1. At the Equation prompt, press [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.
2. 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 4 below. The
choices shown on the option bar are determined by the selection made at the previous SYSTEM UNITS screen.
Table 4: 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
3. Use the [F1]-[F4] keys to select the Volumetric Time (units for the volumetric flow rate display).
4. Use the [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.
5. 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 4 on page 27.
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.
DigitalFlow™ GS868 Startup Guide
27
Chapter 2. Initial Setup
2.5.3 1- and 2-Channel Meters (cont.)
6. 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.
7. If the Static Density? prompt in the ADVAN submenu (SETUP menu) is set to NO, the GS868 returns to the initial User
Program screen. Otherwise, proceed as follows:
a. Use the [F1]-[F4] keys to select the Mass Flow units, listed in Table 5 below.
Table 5: Available Mass Flow Units
English Mass Flow Units
LB- Pounds
Metric Mass Flow Units
KG - Kilograms
KLB - Thousands of Pounds
MMLB - Millions of Pounds
TONS - Tons
Tonnes - Metric Tons
b. Use the [F1]-[F4] keys to select the Mass Flow Time units.
c. Use the [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 [F1]-[F4] keys to select the Mass (Totalizer) units, listed in Table 5 above.
e. Use the [F1]-[F4] to specify the Mass Decimal Digits (the number of digits to the right of the decimal point) for
displaying totalized mass flow. The meter returns to the initial User (or Channel) Program screen.
28
DigitalFlow™ GS868 Startup Guide
Chapter 2. Initial Setup
2.6
Entering Pipe Data
The PIPE submenu permits entry of the transducer and pipe specifications. To program this menu, complete the
following steps:
1. At the User (or Channel) Program screen, press [F3] to program the PIPE submenu.
2.6.1 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.
2.6.2 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 6 below lists the available English
and metric OD units.
Table 6: 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
mm/PI = pipe circumference in millimeters
ft/PI = pipe circumference in feet
m/PI = pipe circumference in meters
2.6.3 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 (see the Programming Manual for details).
DigitalFlow™ GS868 Startup Guide
29
Chapter 2. Initial Setup
2.6.4 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 (P) and the transducer signal axial length (L),
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.
2.6.5 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 (P) and the transducer signal axial length (L),
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.
2.6.6 Fluid Type
7. Press [F1] = steam or [F2] = any other gas to select the Fluid Type.
a. If OTHER was selected, enter the speed of sound (in feet per second) in the gas to be measured. Press [ENT]. (The
meter will only accept values from 125 to 9000 ft/sec.)
2.6.7 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.
a. 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 desired value and
press [ENT].
2.6.8 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.) The meter will exit the PIPE submenu and return to the initial User (or Channel)
Program screen.
30
DigitalFlow™ GS868 Startup Guide
Chapter 2. Initial Setup
Procedure Options
After completing the above steps, the meter returns to the User (or 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] once (for a 1-channel GS868) or twice
(for a 2-channel GS868) 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] once (for a 1-channel GS868) or twice
(for a 2-channel GS868) 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 Programming Manual for instructions on using the SAVE submenu.
Proceed to Chapter 3, Operation, for instructions on taking measurements or refer to the Programming Manual for
instructions on programming the Model GS868’s advanced features.
DigitalFlow™ GS868 Startup Guide
31
Chapter 2. Initial Setup
32
DigitalFlow™ GS868 Startup Guide
Chapter 2. Initial Setup
PROG
(2-Channel)) (1-Channel)
F1
F2
CH1
CH2
F3
F4
GLOBL
SAVE
PROGRAM status
Channel PROGRAM status
F1
F2
ACTIV
SYSTM
(2-Channel) (1-Channel)
(2-Channel) (1-Channel)
TOTALIZER UNITS (English) (Metric)
Channel status
F1
OFF
F2
Site status F1
BURST
BURST
F1
ACF
F2
F3
KACF
MMACF
F1
F2
KSCF
MMSCF
F2
F3
KACM
MMACM
F1
F2
KSCM
MMSCM
CHANNEL MESSAGE
F1
ENG
F4
Skan/Measure Mode
SCF
F1
Skan
F4
SCM
VOL DECIMAL DIGITS
F1
0
F1
F2
1
F3
2
F4
PSIa
F2
PSIg
3
F1
BARa
F3
LB
F2
KLB
F3
MMLB
F4
TONS
F1
/SEC
F2
/MIN
KG
F3
/HR
0
1
F3
LB
KLB
F3
F4
MMLB
TONS
0
F4
500k
F1
25k
PIPE OD (English) (Metric)
F1
inch
F2
feet
F3
in/PI
F4
ft/PI
F1
mm
F3
mm/P
F2
m
F4
m/P
ACTUL
AUTO
PIPE WALL
F2
MNUAL
PATH LENGTH P
(English) (Metric)
inch
F2
F3
MMACF
F1
ACM
F2
F3
KACM
MMACM
F1
F2
KSCF
MMSCF
F4
SCM
F1
F2
KSCM
MMSCM
F2
feet
F3
mm
F4
m
F3
mm
F4
m
F2
33k
AXIAL LENGTH L
inch
F2
feet
FLUID TYPE
F1
KG
F2
TONNE
F1
VOLUMETRIC TIME
F1
/SEC
F2
/MIN
F3
/HR
F4
STEAM
/DAY
F2
OTHER
FLUID SOUNDSPEED
Reynolds Correction?
F2
1
STAND
KACF
F4
MASS DECIMAL DIGITS
F1
F3
200k
Tw
F1
3
MASS (TOTALIZER)
(English) (Metric)
F2
F2
F4
SCF
F1
F1
VOLUMETRIC UNITS(English) (Metric)
F1
2
F2
BARg
F4
KPag
100k
F1
/DAY
ACF
F2
F1
EQUATION
F4
MDOT DECIMAL DIGITS
F1
50k
F2
STOPWATCH TOTALIZER
F2
TONNE
MASS FLOW TIME
F1
FREQUENCY
F1
GAGE
PRESSURE
(English) (Metric)
F1
SPECIAL TRANSDUCER #
METRC
KPaa
MASS FLOW
(No)
(Yes)
F1
SPEC
F2
PRESSURE UNITS
(English) (Metric)
F2
S/M
F4
I/O
TRANSDUCER NUMBER
SITE LABEL
SITE MESSAGE
SYSTEM UNITS
CHANNEL LABEL
F1
ACM
F3
PIPE
Figure 12: Model GS868 Initial Setup Menu Map
NOTE: Plain text represents prompt area messages and
boxed text represents option bar choices.
Fx represent function keys to select option bar choices.
F3
2
F4
3
VOL DECIMAL DIGITS
F1
0
F1
F2
1
F3
2
F4
3
NO
F2
YES
KINETIC VISCOSITY
CALIBRATION FACTOR
DigitalFlow™ GS868 Startup Guide
33
Chapter 2. Initial Setup
DigitalFlow™ GS868 Startup Guide
34
Chapter 3. Operation
Chapter 3.
3.1
Operation
Introduction
See Chapter 1, Installation, and Chapter 2, Initial Setup, to prepare the system for operation. When the meter is ready
to take measurements, proceed with this chapter. The following specific topics are discussed:
•
Powering Up
•
Using the Display
•
Taking Measurements
Note: All inputs and outputs of the Model GS868 are calibrated at the factory, prior to shipment. If it becomes
necessary to recalibrate any of the inputs and/or outputs, see Chapter 1, Calibration, of the Service Manual.
WARNING! To ensure the safe operation of the Model GS868, it must be installed and operated
as described in this manual. In addition, be sure to follow all applicable local safety codes and
regulations for the installation of electrical equipment.
DigitalFlow™ GS868 Startup Guide
35
Chapter 3. Operation
3.2
Powering Up
Because the Model GS868 does not have an ON/OFF switch, it will power up as soon as the connected power source is
energized.
Note: For compliance with the European Union’s Low Voltage Directive, this unit requires an external power
disconnect device such as a switch or circuit breaker. The disconnect device must be marked as such, clearly
visible, directly accessible, and located within 1.8 m (6 ft) of the Model GS868.
Immediately upon power up, the Model GS868 displays the GE logo and the software version in the left pane of the
display window. The Model GS868 performs a series of internal checks and display the results in the right pane of the
display window.
Note: If the Model GS868 fails any of the internal checks, try disconnecting the power and then re-powering the unit.
If the Model GS868 continues to fail any of the internal checks, contact the factory for assistance.
After successfully performing the internal checks, the Model GS868 begins taking measurements. The power up
display is replaced by a measurement mode display similar to that shown in Figure 13 below.
Note: As a minimum, the system and pipe parameters (for each installed channel of a 2-channel meter) must be
entered before the Model GS868 can display valid data. Refer to Chapter 2, Initial Setup, for specific
instructions.
SITE1 PIPE1
SITE1 PIPE1
Velocity
m/s
VOLUM
+TOTL
SCM/M
1038.7
6.95
VEL
Volumetric
-TOTL
Figure 13: A Typical Measurement Display
Proceed to the next section for a description of the components of the Model GS868 display screen.
36
DigitalFlow™ GS868 Startup Guide
Chapter 3. Operation
3.3
Using the Display
The Model GS868 display is divided into a left pane and a right pane. The two screen panes can be set independently to
display any of the available measurement or diagnostic parameters. The components of a typical measurement mode
screen are shown in Figure 14 below.
Pointer
Locator Bar
gSITE
Ch1 no label
Velocity
Ft/s
6.95
Prompt
Area
Ch1 E1: Low Signal
CH1
Error Code
CH2
SUM
DIF
Option Bar
Figure 14: Display Screen Components
Both panes of the display screen are continuously updated, but only one pane at a time may be programmed or
changed. To select a pane, press the corresponding side of the [SCREEN] key on the keypad. The currently selected
screen pane will have function names in the option bar, while the other screen pane will have a blank option bar. See the
Programming Manual for detailed instructions on using the keypad.
As shown in Figure 14 on page 37, each pane of the display screen is divided into the following three general areas:
•
the locator bar
•
the prompt area
•
the option bar.
The upper portion of the screen pane is called the locator bar. While the meter is taking measurements, the locator bar
displays the name of the currently selected site file. In addition, the locator bar identifies the task that is currently being
performed and the status of that task. For example, pressing the [PROG] key on the keypad will cause the locator bar to
display “PROGRAM” and “Start” to indicate that the meter is ready to be programmed from the start of the User Program.
DigitalFlow™ GS868 Startup Guide
37
Chapter 3. Operation
3.3
Using the Display (cont.)
At various times, one or more of the following four symbols may be displayed on the far right of the locator bar:
•
: This symbol, which is called the pointer, indicates that additional option bar entries are available. These options
can be accessed by using the ] and ] keys.
•
*: A flashing asterisk indicates that the Model GS868 is currently logging information. See the Programming
Manual for instructions on creating a log file.
•
S or SL: This symbol indicates the status of the red [SHIFT] key. “S” indicates that the [SHIFT] key is activated for the
next keystroke only, while “SL” indicates that the [SHIFT] key is locked. See the next section for instructions on
using the keypad.
•
T: This symbol indicates that the Model GS868 is currently totalizing data.
The middle portion of the screen pane is the prompt area. This area displays data, graphs, and logs in measurement
mode and menu prompts in programming mode. In addition, error code messages, which are described in the Service
Manual, are displayed in the prompt area.
The lower portion of the screen pane is called the option bar. The option bar displays the functions assigned to the four
keys immediately below the display screen ([F1]-[F4] for the left pane and [F5]-[F8] for the right pane). Press a function
key to select the function listed in the option bar immediately above it. If more than four functions are available, a
pointer appears on the far right of the locator bar. Press the ] or ] keys to display the additional functions on
the option bar.
For information about other symbols and text that may appear on the display screen, refer to the Service Manual.
38
DigitalFlow™ GS868 Startup Guide
Chapter 3. Operation
3.4
Taking Measurements
The Model GS868 is capable of displaying several different variables in a variety of formats. However, this manual
will only discuss the basic measurement displays in the default screen format. Refer to the Programming Manual for
instructions on setting up alternate screen displays and see the Service Manual for a discussion of the diagnostic
parameters listed under the DIAG option.
Note: This section assumes that the left pane of the display screen is currently active. However, the same instructions
apply equally to the right screen pane, when it is active. Just change the function keys from [F1]-[F4] to [F5]-[F8].
For a 2-channel Model GS868, the following initial screen appears immediately upon completion of the internal
checks. As an example, the display shows the measured velocity in ft/sec for Channel 1.
Ch1 Channel Label
To select a different channel display option, press [F1]-[F4] (or ] and
[F1]). See Table 7 below for a complete description of the available
options.
gSITE
Ch1 Velocity Ft/s
6.95
(error codes appear here)
CH1
CH2
SUM
DIF
Table 7: Channel Display Options
Option Bar Choice
Description
[F1] = CH1
Channel 1
[F2] = CH2
Channel 2
[F3] = SUM
(Channel 1) + (Channel 2)
[F4] = DIF
(Channel 1) - (Channel 2)
] + [F1] = AVE
[(Channel 1) + (Channel 2)]/2
The following screen appears after selection of the channel mode display option for a 2-channel Model GS868 or
immediately after the internal checks for a 1-channel Model GS868.
(Ch1)
label
Use the [F1]-[F4], ] and ] keys to select the desired display
parameter option. Refer to Table 8 on page 40 for a complete
description of the available options.
gSITE
(Ch1) Velocity Ft/s
6.95
(error codes appear here)
VEL
VOLUM
+TOTL
-TOTL
Note: Ch1 (or Ch2), which is shown in parentheses above, appears only with a 2-Channel Model GS868.
DigitalFlow™ GS868 Startup Guide
39
Chapter 3. Operation
3.4
Taking Measurements (cont.)
Table 8: Measurement Parameter Options
Option Bar Choice
Description
[F1] = VEL
Flow Velocity
[F2] = VOLUM
Volumetric Flow
[F3] = +TOTL
Forward Totalized Volume Flow
[F4] = -TOTL
Reverse Totalized Volume Flow
] + [F1] = TIME
Total Flow Measurement Time
] + [F2] = MDOT
Mass Flow
] + [F3] = +MASS
Forward Totalized Mass Flow
] + [F4] = -MASS
Reverse Totalized Mass Flow
] + ] + [F1] = DIAG Diagnostic
The DIAG option listed in Table 8 above provides access to a wide variety of diagnostics parameters. See Chapter 3,
Diagnostics, of the Service Manual for a complete description of these options.
By following the instructions in this section, the Model GS868 can be set up to display the desired channel option (for
a 2-Channel meter) and the desired measurement parameter. To utilize the more advanced display capabilities of the
Model GS868, refer to the Programming Manual and/or the Service Manual for the instrument.
40
DigitalFlow™ GS868 Startup Guide
Chapter 3. Operation
3.4.1 Foundation Fieldbus Communications
Foundation Fieldbus provides a means of communicating with the flowmeter. The patent numbers which apply are
5,909,363 and 6,424,872.
This Foundation Fieldbus device supports 2 Analog Input (AI) blocks, which can be configured to supply the following
measurements on the network (see Table 9 below).
Table 9: Available Measurements Using a Foundation Fieldbus Device
Channel 1
Units
Channel 1
ft/s or m/s* Ch1 Mass Flow
Ch1 Velocity
Units
Channel 1
Units
MASS_U
Ch1 SSUP
none
none
Ch1 Act Volumetric
VOL_U
Ch1 Fwd Mass Totals
MTOT_U
Ch1 SSDN
Ch1 Std Volumetric
VOL_U
Ch1 Rev Mass Totals
MTOT_U
Ch1 Sound Speed
Ch1 Fwd Totals
TOT_U
Ch1 #Mass Tot Digits
none
Ch1 Density***
see note
Ch1 Rev Totals
TOT_U
Ch1 Timer
sec
Ch1 Temperature
Deg F or C*
Ch1 #Tot Digits**
none
Ch1 Error Code
none
Ch1 Pressure
ft/s or m/s*
PRESS_U
*Metric or English units are determined by the setup of the flowmeter.
**Totalizer digits are available for informational purposes only. Respective totals are automatically scaled
by the Tot Digits value selected in the flowmeter setup.
***If the meter is outputting Mole Weight, the unit is “mw”, otherwise it is the programmed pressure unit.
VOL_U, TOT_U, MASS_U, MTOT_U and PRESS_U are determined by the units chosen for these
measurements in the flowmeter setup. See the instrument User's Manual for the setup of these
parameters.
DigitalFlow™ GS868 Startup Guide
41
Chapter 3. Operation
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42
DigitalFlow™ GS868 Startup Guide
Chapter 4. Specifications
Chapter 4.
4.1
Specifications
General
The general specifications for the Model GS868 flowmeter are divided into the following categories:
4.1.1 Hardware Configuration
Package Options: Epoxy-coated aluminum (standard)
Stainless steel
Explosion-proof
Physical: Size: 14.24  11.4  5.12 in. (36.2  29  13 cm)
Weight: 11 lb (5 kg)
4.1.2 Environmental
Operating Temperature: -4° to 131°F (–20° to 55°C)
Storage Temperature: –67° to 167°F (–55° to 75°C)
4.1.3 Flow Accuracy
% of Reading:1% to 2% of reading typical
Note: Accuracy depends on pipe size and whether measurement is 1-path or 2-path. Accuracy to ±0.5% of reading
may be achievable with process calibration.
4.1.4 Range
Bidirectional: –150 to –0.1 ft/s (–46 to –0.03 m/s)
0.1 to 150 ft/s (0.03 to 46 m/s)
4.1.5 Rangeability (Overall)
1500:1
4.1.6 Repeatability
0.2 to 0.5%
Note: Specifications assume a fully developed flow profile (typically 20 diameters upstream and 10 diameters
downstream of straight pipe run) and flow velocity greater than 3 ft/s (1 m/s).
4.1.7 Response Time
For a 0–90% Step Change: 3 seconds to within 1% of final value
DigitalFlow™ GS868 Startup Guide
43
Chapter 4. Specifications
4.2
Electrical
The electrical specifications for the Model GS868 flowmeter are divided into the following categories:
4.2.1 Power Supply
Input Options: 110 to 120 VAC, 50/60 Hz with 1.0 A Slo-Blo Fuse
220 to 240 VAC, 50/60 Hz with 0.5 A Slo-Blo Fuse
12 to 28 VDC with 3.0 A Slo-Blo Fuse
4.2.2 Power Usage
20 W maximum
4.2.3 Operating Mode
Transit-time flow measurement for gas transducers.
4.2.4 European Compliance
This unit complies with EMC Directive 2004/108/EC and 2006/95/EC Low Voltage Directive (Installation Category II,
Pollution Degree 2), and PED 97/23/EC for DN<25.
4.2.5 Input/Output Specifications
Keypad: 39-key membrane keypad with tactile feedback
Display: Both single- and dual-channel models have a software-configurable 64 x 128-pixel LCD graphic
display, divided into two display areas (panes)
Digital Interfaces:
•
Standard: RS232
•
Optional: RS485 (multiuser)
•
Optional: MODBUS protocol
•
Optional: Ethernet TCP/IP
•
Optional MODBUS TCP/IP (Ethernet)
Analog Input Options:
Select up to 2 boards of one of the following types:
1. Transmitter Input Board with two isolated 0/4-20 mA inputs and 24-V loop power.
2. RTD Input Board with two isolated 3-wire RTD inputs;
Span –148° to 662°F (–100° to 350°C). Inputs of the following types may be used:
44
DigitalFlow™ GS868 Startup Guide
Chapter 4. Specifications
4.2.5 Input/Output Specifications (cont.)
Analog Input Options (cont.):
a. Temp from –200° to +1,000°C
b.
Pressure from 0–3000 psig
0 to 500 bar
c. Steam quality from 0.0 to 1.0
Analog Output Options:
All meters come with two isolated 0/4–20 mA current outputs (550  maximum load).
Optional selection of up to 3 additional output boards, each with four isolated 0/4–20 mA outputs (1000 
maximum load).
Totalizer/Frequency Output Options:
Select up to 3 Totalizer/Frequency Output Boards, each with four outputs per board, 10 kHz max.
All boards allow software-selectable functioning in two modes:
Totalizer Mode: one pulse per defined unit of parameter
(e.g., 1 pulse/SCF).
Frequency Mode: pulse frequency proportional to magnitude of parameter (e.g., 10 Hz = 1 gpm).
Alarm Options:
Select up to 2 boards of one of the following types:
Basic Relay Board with three general purpose Form-C relays.
Hermetic Relay Board with three hermetically sealed Form-C relays.
Maximum Relay Ratings:
120 VAC AC Voltage, 28 VDC DV Voltage, 5A AC/DC Current,
60 VA AC Power, 30 W DC Power (General Purpose) or
56 W DC Power (Hermetically Sealed)
DigitalFlow™ GS868 Startup Guide
45
Chapter 4. Specifications
4.3
Operational
The operational specifications for the Model GS868 flowmeter are divided into the following categories:
4.3.1 Flow Computer (Built-in)
The flow computer has three operating modes:
1. RUN (Normal operating mode):
Flow velocity equations are solved and statistical data rejection techniques are employed to provide reliable and
repeatable results.
2. PARAMETER:
Allows the operator to program the meter.
3. DIAGNOSTIC:
Allows the operator to calibrate inputs and outputs and to display certain diagnostic information such as
checksums, signal strength, calculated gas sound speed, etc.
4.3.2 Data Logging
Keypad-programmable for setting up log units, update interval, start and stop times. Memory capacity for more than
43,000 flow data points in a linear or circular log.
4.3.3 Display Functions
Liquid crystal graphic display shows flow in numeric or graphic format. Also displays logged data and diagnostics.
4.3.4 Printer Signal Output
Supports wide variety of thermal and impact printers. Output data in numeric or graphic (“strip chart”) format.
46
DigitalFlow™ GS868 Startup Guide
Chapter 4. Specifications
4.4
Transducer
The transducer specifications for the Model GS868 flowmeter are divided into the following categories:
4.4.1 Type
Standard: T9
Optional: BWT™ System
4.4.2 Temperature Range
–190° to 450°C (–310° to 842°F) (overall)
4.4.3 Pressure Ranges
Standard: 0 to 2700 psig (1 to 187 bar)
Optional: 3480 psig (240 bar) maximum
4.4.4 Materials
Standard: Stainless steel, titanium
Optional: Monel®, Hastalloy®
4.4.5 Connections
Cable Length: Up to 1000 ft (300 m)
Housing Options:
Explosion-proof (Class I, Group C & D, Division I)
Flameproof (INIEX/ISSeP certified for EEx d II C T6)
Weatherproof (Type-4X, IP65)
Type-7
DigitalFlow™ GS868 Startup Guide
47
Chapter 4. Specifications
4.5
Flowcell
The flowcell specifications for the Model GS868 flowmeter are divided into the following categories:
Spoolpiece
Process Connections:
Flanged typical, welded optional
Transducer Connections:
1.5 in., 300 lb. flange for T9 transducer
1.5 in., 150-2,500-lb. flange for BWT transducers
Cold Tap
Process Connections:
N/A
Transducer Connection:
PanaPort cold tap kit
Optional: ANSI flanged 150 to 300#
Pipe Size & Materials
Outside Diameter (OD):
2 to 48 in. (50 to 1200 mm).
Materials:
All metals. Consult GE for other materials.
48
DigitalFlow™ GS868 Startup Guide
Appendix A. CE Mark Compliance
Appendix A. CE Mark Compliance
A.1 Introduction
For CE Mark compliance, the Model GS868 flowmeter must be wired in accordance with the instructions in this
appendix.
IMPORTANT: CE Mark compliance is required only for units intended for use in EC countries.
A.2 Wiring
The Model GS868 must be wired with the recommended cable, and all connections must be properly shielded and
grounded. Refer to Table 10 below for the specific requirements.
Table 10: Wiring Modifications
Cable Type
Termination Modification
Connection
Transducer
Input/Output
Power
RG62 a/u
Add metallic cable clamp from braid to
chassis ground.
Armored RG62 a/u or conduit
None - grounded using a cable gland.
22 AWG shielded (e.g. Baystate #78-1197)
Terminate shield to chassis ground.
Armored conduit
None - grounded using a cable gland.
14 AWG, 3 conductor, shielded (e.g. Belden
#19364)
An external ground to the chassis is required.
Armored Conduit
None - grounded using a cable gland.
A.3 External Grounding
For CE Mark compliance, the electronics enclosure and the transducer fixture must each have an external ground wire
attached.
Note: If the Model GS868 is wired as described in this appendix, the unit will comply with the EMC Directive
2004/108/EC.
DigitalFlow™ GS868 Startup Guide
49
Appendix A. CE Mark Compliance
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50
DigitalFlow™ GS868 Programming Manual (1-Channel)
Appendix B. Data Records
Appendix B. Data Records
B.1 Option Cards Installed
Whenever an option card is installed in one of the Model GS868’s expansion slots, record the type of card and any
additional setup information in the appropriate row of Table 11 below.
Slot #
0
Table 11: Option Cards Installed
Type of Option Card
Additional Setup Information
Analog Outputs (A, B)
1
2
3
4
5
6
DigitalFlow™ GS868 Startup Guide
51
Appendix B. Data Records
B.2 Initial Setup Data
After the Model GS868 flowmeter has been installed, some initial setup data must be entered via the User Program,
prior to operation. Record that information in Table 12 below.
Model #
Software Vers.
Serial #
Table 12: Initial Setup Data
General Information
Reference
Date
Z Dimension
Measurement Method - ACTIV
Channel 1
Channel Status
Off
Measure Mode
Skan
Channel 2
Burst
Channel Status
Off
Burst
S/M
Measure Mode
Skan
S/M
System Parameters - SYSTEM
1-Channel
2-Channel
Site Label
Chan.1 Label
Site Message
Chan. 1 Message
System Units
English
Metric
Chan. 2 Label
Pressure Units
Chan. 2 Message
Stopwatch Total.
Auto
Manual
1-Channel and 2-Channel
Channel 1
Channel 2 (if applicable)
Gas Equation
Standard
Actual
Gas Equation
Standard
Actual
Vol. Units
Vol. Units
Vol. Time Units
Vol. Time Units
Vol. Dec. Digits
Vol. Dec. Digits
Totalizer Units
Totalizer Units
Tot. Dec. Digits
Tot. Dec. Digits
Mass Flow
Mass Flow
Mass Flow Time
Mass Flow Time
MDOT Dec. Dig.
MDOT Dec. Dig.
Mass Totalizer
Mass Totalizer
Mass Dec. Dig.
Mass Dec. Dig.
Pipe/Transducer Parameters - PIPE
Channel 1
Channel 2 (if applicable)
Std. Trans. #
Std. Trans. #
Spec. Trans. #
Spec. Trans. #
Spec. Trans. Hz
Spec. Trans. Hz
Spec. Trans. Tw
Spec. Trans. Tw
Note: table is continued on next page.
52
DigitalFlow™ GS868 Startup Guide)
Appendix B. Data Records
Table 12: Initial Setup Data (cont.)
Pipe/Transducer Parameters (cont.) - PIPE
Channel 1 (cont.)
Channel 2 (cont.)
Pipe O.D.
Pipe O.D.
Pipe Wall
Pipe Wall
Path Length (P)
Path Length (P)
Axial Length (L)
Axial Length (L)
Fluid Type
Steam
Other
Fluid Type
Steam
Other/Sndspd
Other/Sndspd
Mass Flow
No
Yes
Mass Flow
No
Fluid Density
Fluid Density
Multi K-factors
Off
On
Multi K-factors
Off
Edit Table
No
Yes
Edit Table
No
K-factor Table
K-factor Table
K-Factor #
Velocity
K-Factor
K Factor #
Velocity
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
Cal. Factor
Cal. Factor
DigitalFlow™ GS868 Startup Guide
Other
Yes
On
Yes
K-Factor
53
Appendix B. Data Records
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54
DigitalFlow™ GS868 Startup Guide
Appendix C. Optional Enclosures
Appendix C. Optional Enclosures
C.1 Introduction
Upon request the Model GS868 flowmeter may be supplied in an enclosure other than the standard Type-4X enclosure
described in Chapter 1, Installation, of this manual. Although the standard installation and wiring instructions still
apply in general terms, some of the details may vary for different enclosure types. Refer to the appropriate sections of
this appendix for the specific type of enclosure provided.
C.2 Rack Mount Enclosure
The Model GS868 flowmeter is available in a rack mount enclosure for installation in a standard 19” electronics rack.
Refer to Figure 15 on page 57 for the dimensions of this unit. Simply slide the Model GS868 into the rack at the desired
height and fasten the unit securely to the rack with four screws in the locations provided at the sides of the front panel.
After the unit has been physically mounted into the rack, proceed to the next section for instructions on wiring the
meter.
C.3 Rack Mount Wiring
The rack mount Model GS868 requires exactly the same electrical connections as the standard version. However, the
locations and type of connectors used for the various components are different. Refer to Figure 16 on page 58 and
complete the following steps:
1. Wire the power input on the right side of the rear panel as follows:
a. Make sure a fuse (item #4) of the proper size and type is installed.
b. Connect the female end of the line cord provided to the power input receptacle (item #3).
c. Connect the earth ground screw terminal (item #2) to a ground point on the rack.
2. Wire the transducers as follows:
a. Connect the pair of cables supplied with the meter to the Channel 1 upstream and downstream BNC transducer
connectors on the left side of the rear panel.
b. For a 2-Channel meter, repeat the above step for the Channel 2 transducer connectors (if the second channel is
to be used).
c. Complete the transducer wiring in accordance with the instructions in Chapter 1, Installation, of this manual.
3. Wire the 0/4-20 mA analog outputs at the left side of the rear panel in accordance with the instructions in Chapter
1, Installation, of this manual.
4. Wire the RS232 serial port by completing the following steps:
a. Purchase or prepare a suitable serial cable. This cable should have a standard female DB9 connector, wired as
shown in Figure 16 on page 58, for connection to the rear panel of the Model GS868. The other end should be
as required for the external device.
b. Complete the serial port wiring in accordance with the instructions in Chapter 1, Installation, of this manual.
5. Wire any installed option cards using the same procedures described in Chapter 1, Installation, of this manual and
the pin # assignments shown in Figure 16 on page 58.
DigitalFlow™ GS868 Startup Guide
55
Appendix C. Optional Enclosures
C.3
Rack Mount Wiring (cont.)
Note: The pins on the option card connectors are numbered from pin #1 on the top to pin #8 (or #9) on the bottom.
6. Place the power switch (item #1) in the ON position.
The Model GS868 is now completely wired. Proceed to Chapter 2, Initial Setup, of this manual for further instructions.
C.4 Rack Mount Front Panel
The keypad and LCD display for the rack mount Model GS868 are located on the front panel. These items are identical
in form and function to those used on the standard Type-4X enclosure, but the layout is somewhat different.
Refer to Figure 17 on page 59 for the front panel layout of the rack mount Model GS868 and follow the standard
procedures detailed in the main body of this manual.
56
DigitalFlow™ GS868 Startup Guide
DigitalFlow™ GS868 Startup Guide
57
19.00 (483)
18.25 (464)
GS868
F1
F2
F3
F4
F5
F6
F7
F8
O
P
Q
R
S
T
U
DISP
CAL
PROG
PRNT
1
2
3
V
W
X
Y
Z
LOG
0
SCREEN
A
B
C
D
E
F
G
7
8
9
H
I
J
K
L
M
N
CLR
HELP
EXIT
ENT
4
5
6
2.25
(57)
5.22
(133)
15.70 (399)
11.82
(300)
13.13
(333)
Figure 15: Model GS868 Rack Mount Enclosure (ref. dwg #712-1078)
3.31 (84)
11.37
(289)
16.99 (432)
4.19 (106)
14.83 (377)
OPTION CARDS
CH2
RS232
UP
DN
ON
TRANSDUCER CONNECTIONS
UP
OFF
DN
PANAMETRICS
CH1
221 CRESCENT STREET
WALTHAM, MA 02154
PHONE 617 899-2719
A
ALARMS
MODEL
SERIAL
+ - + -
1
2
3
MADE IN U.S.A.
B
4
5
6
7
8
9
ANALOG OUT
A / OUT TOTL /FREQ
NO
1
C A 2
NC
3
NO
4
C B
5
NC
6
NO
C C 7
8
NC
RTN A 1 C
SIG
2 NO
RTN B 3 C
SIG
4 NO
RTN C 5 C
SIG
6 NO
RTN D 7 C
SIG
8 NO
A / IN
RTD IN
A 1 +24V
1 +
2 INHI
2 COM A
3 INLO A 3 COM
B 4 RTN
4 NC
5 +
C 5 +24V
6 INHI
6 COM B
7 INLO B 7 COM
D 8 RTN
8 NC
USE ONLY WITH A 250V FUSE
100 - 120 VAC
FUSE 1 AMP
DISCONNECT POWER
BEFORE SERVICING
Appendix C. Optional Enclosures
Appendix C. Optional Enclosures
RS232 SERIAL PORT (DB9)
NOTE: For compliance with the European Union's Low Voltage
Description
UP
Upstream XDCR
DN
Downstream XDCR
Pin #
Directive, this unit requires an external power
disconnect device such as a switch or circuit breaker. The
disconnect device must be marked as such, clearly visible,
directly accessible and located within 1.8 m (6 ft) of the
Model GS868.
1
Description
No Connection
2
TX - Transmit
3
RX - Receive
4
DTR - Data Terminal Ready
5
RTN - Digital Return
Description
6
No Connection
UP
Upstream XDCR
7
No Connection
DN
Downstream XDCR
8
CTS - Clear to Send
9
No Connection
CH1 TRANSDUCER
BNC #
Covered Option Card Slot
0/4-20 mA ANALOG OUTPUTS
Pin #
POWER INPUT
Description
Item #
OPTION CARDS
1
Output A - SIG(+)
2
Output A - RTN(-)
3
Output B - SIG(+)
4
Output B - RTN(-)
CH2
RS232
UP
ON/OFF Switch
ON
2
Earth Ground
OFF
3
Power Cord
4
Fuse
DN
TRANSDUCER CONNECTIONS
UP
Description
1
DN
CH1
ALARMS
MODEL
NOTE
+
A
One option card of each
available type is shown in this
diagram. These cards are not
always installed in the same
slots used for this example.
- + B
ANALOG OUT
1
2
3
NO
C
NC
4
5
6
NO
C
NC
B
7
8
9
NO
C
NC
C
A
A / OUT
A / IN
1 RTN
2 SIG
A
1
2
C
NO
3 RTN
4 SIG
B
3
4
C
NO
5 RTN
6 SIG
C
5
6
C
NO
7 RTN
8 SIG
D
7
8
C
NO
A 1 +24V
2 INHI
3 INLO
B 4 RTN
C 5 +24V
6 INHI
7 INLO
D 8 RTN
RTD IN
1
A 2
3
4
5
6
B 7
8
+
COM
COM
NC
+
COM
COM
NC
A
USE ONLY WITH A 250V FUSE
100 - 120 VAC
FUSE 1 AMP
B
ALARM RELAYS
Description
0/4-20 mA ANALOG OUTPUTS
TOTALIZER/FREQUENCY OUTPUTS
1
Relay A - Normally Open (NO)
Pin #
Pin #
2
Relay A - Common (C)
1
Output A - RTN(-)
1
3
Relay A - Normally Closed (NC)
2
Output A - SIG(+)
4
Relay B - Normally Open (NO)
3
Output B - RTN(-)
5
Relay B - Common (C)
4
6
Relay B - Normally Closed (NC)
7
Relay C - Normally Open (NO)
8
9
Pin #
Description
Description
0/4-20 mA ANALOG INPUTS
Pin #
Description
RTD INPUTS
Pin #
Description
Output A - Common (C)
1
Input A - +24V
1
Input A - SIG(+)
2
Output A - Normally Open (NO)
2
Input A - INHI
2
Input A - Common (C)
3
Output B - Common (C)
3
Input A - INLO
3
Input A - Common (C)
Output B - SIG(+)
4
Output B - Normally Open (NO)
4
Input A - RTN
4
Unused
5
Output C - RTN(-)
5
Output C - Common (C)
5
Input B - +24V
5
Input B - SIG(+)
6
Output C - SIG(+)
6
Output C - Normally Open (NO)
6
Input B - INHI
6
Input B - Common (C)
Relay C - Common (C)
7
Output D - RTN(-)
7
Output D - Common (C)
7
Input B - INLO
7
Input B - Common (C)
Relay C - Normally Closed (NC)
8
Output D - SIG(+)
8
Output D - Normally Open (NO)
8
Input B - RTN
8
Unused
DigitalFlow™ GS868 Startup Guide
Figure 16: Model GS868 Rack Mount Enclosure - Wiring Diagram
CH2 TRANSDUCER
BNC #
58
Appendix C. Optional Enclosures
Mounting Holes
Handle
Handle
A
B
C
D
E
F
G
7
8
9
H
I
J
K
L
M
N
CLR
HELP
EXIT
ENT
4
5
6
O
P
Q
R
S
T
U
DISP
CAL
PROG
PRNT
1
2
3
V
W
X
Y
Z
LOG
0
SCREEN
GS868
LCD Display
Main Keypad
Function Keys
DigitalFlow™ GS868 Startup Guide
Figure 17: Model GS868 Rack Mount Enclosure - Front Panel Layout
Mounting Holes
Console Keys
59
Appendix C. Optional Enclosures
DigitalFlow™ GS868 Startup Guide
60
Appendix D. Measuring P and L Dimensions
Appendix D. Measuring P and L Dimensions
D.1 Introduction
When programming the PIPE menu of the Model GS868’s User Program, the path length (P) and the axial dimension
(L) must be entered. These parameters are determined by measurements on the actual transducer installation, with P
equal to the face-to-face distance between the transducers and L equal to the axial distance between the centers of the
transducer faces.
The accuracy of the programmed P and L values is critical to precise flow rate measurements. If the factory supplies
the flowcell for the system, the correct values will be included in the documentation supplied with the unit. For
transducers installed on an existing pipe (see Figure 18 on page 62), P and L must be measured at the site. This
appendix provides instructions for properly determining these dimensions.
D.2 Measuring P and L
Whenever possible, physically measure the face-to-face distance (P) and the axial distance (L) between the centers of
the flat faces of the transducers. Refer to Figure 18 on page 62 for an illustration of the proper distances to measure in a
typical installation.
In some situations only one of the required distances can be directly measured. When this happens, a knowledge of the
installation angle () of the transducers, permits the second distance to be calculated from Equation D-1 below:
L
cos  = --P
(1)
As an example, assume that the transducer installation angle is known to be 45° and the L distance is measured to be
10.00 inches. Then, the P distance is calculated to be P = 10.00/0.707 = 14.14 inches.
With a Bias 90° transducer installation, it sometimes happens that the only known parameters are the transducer angle
() and the centerline distance between the transducer bodies (CL). In these cases, it is still possible to calculate P and
L by combining Equation D-1 above with the additional Equation D-2 below (see Figure 18 on page 62):
P = CL – 1.2
(2)
Standard GE 90° transducers have the face offset from the centerline of the body by 0.6 inches. Thus, a pair of
transducers has a total offset of 1.2 inches, as indicated in Equation D-2 above. For example, suppose that the
transducer installation angle is 30° and CL is measured to be 12.00 inches. Then, P = 12.00 – 1.2 = 10.80 inches and L
= 10.80 x 0.866 = 9.35 inches.
DigitalFlow™ GS868 Startup Guide
61
Appendix D. Measuring P and L Dimensions
Pipe Thickness
180° Installation
P
T
Pipe O.D.
L
CL
P
T
L
Bias 90° Installation
Figure 18: Top View of Transducer Installations
62
DigitalFlow™ GS868 Startup Guide
Index
A
D
Abbreviations, Volumetric Units . . . . . . . . . . . . . . . . 27
ACTIV Submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Alarms Option Card
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Fail-Safe Operation . . . . . . . . . . . . . . . . . . . . . . . 14
Relay Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Analog Inputs Option Card
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 15
Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Analog Outputs (Slot 0)
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Analog Outputs Option Card
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Axial Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Axial Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Display
Channel Mode Options . . . . . . . . . . . . . . . . . . . . . 39
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Locator Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Locator Bar Symbols . . . . . . . . . . . . . . . . . . . . . . 38
Measurement Mode . . . . . . . . . . . . . . . . . . . . . . . 36
Metric or English . . . . . . . . . . . . . . . . . . . . . . . . . 26
Option Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Parameter Options . . . . . . . . . . . . . . . . . . . . . . . . 40
Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Prompt Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Selecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Using . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
C
Cable
Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 3, 9
Calibration Factor . . . . . . . . . . . . . . . . . . . . . . . . . . 30
CE Mark Compliance . . . . . . . . . . . . . . . . . . . 1, 9, 49
Channel Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Channel Message. . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Connecting
See Part Name
Connectors, Electrical . . . . . . . . . . . . . . . . . . . . . . . . 6
E
Electrical Connectors . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electronics Console
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ethernet, Wiring the. . . . . . . . . . . . . . . . . . . . . . . . . 12
F
Fieldbus Network . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Flowcell
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Fluid Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Foundation Fieldbus
Available Measurements. . . . . . . . . . . . . . . . . . . . 41
Communications . . . . . . . . . . . . . . . . . . . . . . . . . 41
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Fuse Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
I
Initial Setup
Data Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Minimum Required . . . . . . . . . . . . . . . . . . . . . . . 23
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Internal Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DigitalFlow™ GS868 Startup Guide
1
Index
L
Lightning Protector, Connecting . . . . . . . . . . . . . . . . . 9
Locator Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
LVD Shroud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LVD Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
M
Mass Flow Units
Available Options . . . . . . . . . . . . . . . . . . . . . . . . 28
Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Measurements
Displaying . . . . . . . . . . . . . . . . . . . . . . . . . . . 36, 39
Parameter Options . . . . . . . . . . . . . . . . . . . . . . . . 40
Taking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36, 39
Measurements, Foundation Fieldbus . . . . . . . . . . . . . 41
MODBUS/TCP, Wiring the . . . . . . . . . . . . . . . . . . . 12
O
Option Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Option Card
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 17
RTD Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Setup Information Table . . . . . . . . . . . . . . . . . . . . 51
Totalizer/Frequency Outputs . . . . . . . . . . . . . . . . . 16
P
Parameter Options . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Path Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30, 61
Pipe OD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Available Units . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pipe OD, Programming . . . . . . . . . . . . . . . . . . . . . . 29
PIPE Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pipe Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pipe Wall, Programming . . . . . . . . . . . . . . . . . . . . . 29
Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Powering Up
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Internal Checks . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2
Preamplifier
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pressure Transmitter
Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Prompt Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
R
Rack Mount
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Return Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Reynolds Correction . . . . . . . . . . . . . . . . . . . . . . . . 30
RS232 Port
See Serial Port
RTD Inputs Option Card
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
RTD Temperature Transmitter . . . . . . . . . . . . . . . . . . 5
S
Screen, Selecting . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Security Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Serial Port
Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 10
Shroud
LVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Plastic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Site Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Site Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Slot 0
See Analog Outputs (Slot 0)
Special Transducer . . . . . . . . . . . . . . . . . . . . . . . . . 29
Specifications
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Flowcell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Operational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Symbols, Locator Bar . . . . . . . . . . . . . . . . . . . . . . . 38
DigitalFlow™ GS868 Startup Guide
Index
SYSTM Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . 26
for 1-Channel Meter . . . . . . . . . . . . . . . . . . . . . . . 26
for 2-Channel Meter . . . . . . . . . . . . . . . . . . . . . . . 27
T
Temperature Transmitter
Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
RTD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Terminal Block
Analog Outputs - I/O . . . . . . . . . . . . . . . . . . . . . . 10
Power - TB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Serial Port - RS232 . . . . . . . . . . . . . . . . . . . . . . . 10
Transducers - CH1/CH2 . . . . . . . . . . . . . . . . . . . . . 9
Time Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Totalizer/Frequency Option Card
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Transducer Number . . . . . . . . . . . . . . . . . . . . . . . . . 29
Transducer, Special . . . . . . . . . . . . . . . . . . . . . . . . . 29
Transducers
180? Installation . . . . . . . . . . . . . . . . . . . . . . . . . 61
Axial Dimension . . . . . . . . . . . . . . . . . . . . . . . . . 61
Bias 90? Installation . . . . . . . . . . . . . . . . . . . . . . . 61
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 3, 9
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation Angle. . . . . . . . . . . . . . . . . . . . . . . . . 61
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Path Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Transmitter
See Temperature or Pressure Transmitter
W
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Wiring
CE Mark Compliance . . . . . . . . . . . . . . . . . . . . . . 49
Foundation Fieldbus. . . . . . . . . . . . . . . . . . . . . . . 13
Option Card. . . . . . . . . . . . . . . . . . . . . See Card Name
Terminal Block . . . . . . . . . . . . . . . . . See Block Name
U
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
User Program
ACTIV Submenu . . . . . . . . . . . . . . . . . . . . . . . . . 25
Entering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Navigating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
PIPE Submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
V
Voltage, Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Volumetric Units . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
DigitalFlow™ GS868 Startup Guide
3
Index
4
DigitalFlow™ GS868 Startup Guide
Warranty
Warranty
Each instrument manufactured by GE Sensing is warranted to be free from defects in material and workmanship.
Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument, at
the sole discretion of GE Sensing. Fuses and batteries are specifically excluded from any liability. This warranty is
effective from the date of delivery to the original purchaser. If GE Sensing determines that the equipment was
defective, the warranty period is:
•
one year from delivery for electronic or mechanical failures
•
one year from delivery for sensor shelf life
If GE Sensing determines that the equipment was damaged by misuse, improper installation, the use of unauthorized
replacement parts, or operating conditions outside the guidelines specified by GE Sensing, the repairs are not covered
under this warranty.
The warranties set forth herein are exclusive and are in lieu of all other warranties whether
statutory, express or implied (including warranties or merchantability and fitness for a
particular purpose, and warranties arising from course of dealing or usage or trade).
Return Policy
If a GE Sensing instrument malfunctions within the warranty period, the following procedure must be completed:
1. Notify GE Sensing, giving full details of the problem, and provide the model number and serial number of the
instrument. If the nature of the problem indicates the need for factory service, GE Sensing will issue a RETURN
AUTHORIZATION NUMBER (RAN), and shipping instructions for the return of the instrument to a service
center will be provided.
2. If GE Sensing instructs you to send your instrument to a service center, it must be shipped prepaid to the authorized
repair station indicated in the shipping instructions.
3. Upon receipt, GE Sensing will evaluate the instrument to determine the cause of the malfunction.
Then, one of the following courses of action will then be taken:
•
If the damage is covered under the terms of the warranty, the instrument will be repaired at no cost to the owner and
returned.
•
If GE Sensing determines that the damage is not covered under the terms of the warranty, or if the warranty has
expired, an estimate for the cost of the repairs at standard rates will be provided. Upon receipt of the owner’s
approval to proceed, the instrument will be repaired and returned.
DigitalFlow™ GS868 Startup Guide
5
Warranty
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6
DigitalFlow™ GS868 Startup Guide
GE
Measurement & Control
Certification &
Safety Statements
GE Infrastructure Products Used in Hazardous Locations
Installation and operation manuals in their complete forms, along with product specific certification and safety
statement sheets are included on the CD provided with the product documentation shipped with each
instrument. Please read and follow all provided manufacturer’s instructions prior to installation and the
application of power to your equipment. Always observe the following:
•
Field wiring shall be rated at least 10°C above rated ambient.
•
Connecting cables shall be mounted securely and protected from mechanical damage, pulling and
twisting.
•
Cable entry thread types are identified on the equipment label.
•
Cable glands of an approved flameproof design are required for Ex d rated equipment. These must be
installed according to the manufacturer’s instructions. Where the cable glands are provided by GE, the
manufacturer’s instructions, as supplied to GE, will be included in the documentation.
•
Unused cable entries must be sealed using a suitably certified threaded plug.
•
Modifications to any flameproof enclosure are not permitted.
•
The apparatus must be de-energized before opening, servicing and conducting any routine maintenance.
•
Installation shall be in accordance with the installation instructions and the National Electrical Code®
ANSI/NFPA 70, the Canadian Electrical Code C22.1, or IEC/EN 60079-14, as applicable.
•
The product contains no exposed parts which produce surface temperature infrared, electromagnetic
ionizing, or non-electrical dangers.
•
The product must not be subjected to mechanical or thermal stresses in excess of those permitted in the
certification documentation and the instruction manual.
•
The product cannot be repaired by the user. It must be replaced by an equivalent certified product.
Repairs should only be carried out by the manufacturer or by an approved repairer.
•
Only trained, competent personnel may install, operate and maintain the equipment.
•
The product is an electrical apparatus and must be installed in the hazardous area in accordance with the
requirements of the EC Type Examination Certificate. The installation must be carried out in accordance
with all the appropriate international, national and local standard codes and practices and site
regulations for flameproof apparatus and in accordance with the instructions contained in the manual.
Access to the circuitry must not be made during operation.
1100 Technology Park Drive, Billerica, MA 01821, U.S.A.
Telephone: 978-437-1000 or 800-833-9438
Sensing House, Shannon Free Zone East, Shannon, County Clare, Ireland
Telephone: +353 61 470200
CSS-0013, Rev. A
August 2014
Certification & Safety Statements for GE Infrastructure Products Used in Hazardous Locations
August 2014
Special Conditions for Safe Use
1
Consult the manufacturer if dimensional information on any flameproof joint is necessary.
2
Follow the manufacturer’s instructions to reduce the potential of an electrostatic charging hazard.
3
Consult the manufacturer for genuine replacement flange fasteners. M10x35 hexagon socket cap screws
of ISO 12.9 DIN912 grade steel (zinc-plated) or better with a minimum yield strength of 135,000 psi are
acceptable alternatives.
4
The sensor body temperature code rating is dependent on the process temperature. It is assumed that
the external surface of the sensor body will be, at worse case, equal to the process temperature (up to
140°C). In all cases, the electronics assembly will be marked T6 as it will be locally mounted for process
temperatures up to 85°C and will be remotely mounted for process temperatures exceeding 85°C.
Markings
Markings appear on the instrument label which identifies the product model, serial number, operating ranges,
hazardous area ratings, entry thread type, and warning and caution information.
EU / EEA Installation Compliance
The use of this apparatus is subject to the EU directive on minimum requirements for improving the safety and
health protection of workers potentially at risk from explosive atmospheres, Council Directive 1999/92/EC. The
installer is required to be familiar with this document or the National transposing legislation.
Increased Safety Wiring Connections
Power Connection:
Maximum Size ‡:
Solid - 4.0 mm2 (12 AWG)
Stranded – 2.5 mm2 (14 AWG)
Number of conductors†:
2 Solid – max 1.5mm2 (16 AWG)
2 Stranded – max 1.0 mm2 (18 AWG)
All Other Screw Terminal Connections:
Maximum Size ‡:
Solid - 4.0 mm2 (12 AWG)
Stranded – 2.5 mm2 (14 AWG)
Number of conductors†:
2 Solid – max 1.5mm2 (16 AWG)
2 Stranded – max 1.0 mm2 (18 AWG)
‡ ‐ Single conductor
† - Multi-conductors of same cross-section
CSS-0013, Rev. A
2 of 2
GE
Sensing
EC DECLARATION
OF
CONFORMITY
DOC-0013, Rev. C
GE Sensing
1100 Technology Park Drive
Billerica, MA 01821
USA
We,
declare under our sole responsibility that the
DigitalFlow™ DF8688 Liquid Ultrasonic Flowmeter
DigitalFlow™ GC868 Clamp-On Gas Ultrasonic Flowmeter
DigitalFlow™ GF868 Flare Gas Mass Ultrasonic Flowmeter
DigitalFlow™ GM868 General-Purpose Gas Ultrasonic Flowmeter
DigitalFlow™ GS868 Steam Mass Ultrasonic Flowmeter
to which this declaration relates, are in conformity with the following standards:
• EN 60079-0: 2009
• EN 60079-1: 2007
• EN60529: 1991 + A1: 2000
• II 2 G Ex d IIB+H2 T6 Gb Ta = 20°C to 60°C; IP66; FM12ATEX0040X
(FM Approvals Ltd, Windsor, Berkshire, UK - NoBo 1725)
• EN 61326-1: 2006, Class A, Table 2, Industrial Locations
• EN 61326-2-3: 2006
• EN 61010-1: 2012, Overvoltage Category II
following the provisions of the 2004/108/EC EMC, 2006/95/EC Low Voltage and 94/9/EC ATEX Directives.
The unit listed above and any ancillary equipment supplied with it do not bear CE marking for the Pressure
Equipment Directive, as they are supplied in accordance with Article 3, Section 3 (sound engineering practices and
codes of good workmanship) of the Pressure Equipment Directive 97/23/EC for DN<25.
Billerica - February 12, 2015
Issued
Mr. Gary Kozinski
Certification & Standards, Lead Engineer
Customer Support Centers
U.S.A.
The Boston Center
1100 Technology Park Drive
Billerica, MA 01821
U.S.A.
Tel: 800 833 9438 (toll-free)
978 437 1000
E-mail: sensing@ge.com
Ireland
Sensing House
Shannon Free Zone East
Shannon, County Clare
Ireland
Tel: +353 (0)61 470200
E-mail: gesensingsnnservices@ge.com
An ISO 9001:2008 Certified Company
www.gemeasurement.com/en/about-us/quality.html
www.gemeasurement.com
©2016 General Electric Company. All rights reserved.
Technical content subject to change without notice.
910-190U Rev. E1
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