Sentinel User's Manual 7 MB
GE
Measurement & Control
Flow
Sentinel™
User’s Manual
910-246 Rev. D
April 2016
Sentinel™
Panametrics Flow Measurement System
User’s Manual
910-246 Rev. D
April 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 that emphasizes instructions that are essential to proper setup of
the equipment. Failure to follow these instructions carefully may cause unreliable performance.
CAUTION! This symbol indicates a risk of potential minor personal injury and/or severe damage to
the equipment, unless these instructions are followed carefully.
This symbol indicates a risk of potential serious personal injury, unless these
instructions are followed carefully.
WARNING!
Safety Issues
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.
WARNING!
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.
Sentinel™ User’s Manual
iii
Preface
Qualification of Personnel
Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.
Personal Safety Equipment
Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary equipment.
Examples include safety glasses, protective headgear, safety shoes, etc.
Unauthorized Operation
Make sure that unauthorized personnel cannot gain access to the operation of the equipment.
Environmental Compliance
Waste Electrical and Electronic Equipment (WEEE) Directive
GE Measurement & Control is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE)
take-back initiative, directive 2012/19/EU.
The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural
resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle most of the
materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information on the collection, reuse and recycling systems, please contact your local or regional
waste administration.
Visit http://www.gemeasurement.com/environmental-health-safety-ehs for take-back instructions and more
information about this initiative.
iv
Sentinel™ User’s Manual
Contents
Chapter 1. Installation
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Meter Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Name and Specification Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Principles of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5.1 Transit-Time Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5.2 Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5.3 Multi-Path Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.4 Flow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5.5 Maximum and Minimum Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.6.1 Sentinel Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.6.2 Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1.6.3 Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.6.4 Installation Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Installing the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Making the Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
1.8.1 Removing the Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
1.8.2 Wiring the Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
1.8.3 Wiring the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
1.8.4 Wiring the Modbus Communications Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
1.8.5 Wiring the Input/Output (I/O) Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
1.8.6 Wiring the Alarm Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
1.8.7 Wiring 0/4-20 mA Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
1.8.8 Wiring the Frequency/Totalizer Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
1.8.9 Wiring the Std 0/4-20 mA Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.8.10 Adjusting the LCD Contrast and Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Chapter 2. Initial Setup
2.1
2.2
2.3
2.4
2.5
2.6
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Adding a Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Adding the Sentinel to the Communications Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Meter Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Meter Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Signal Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
2.6.1 Channel Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
2.6.2 Signal Setup Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Chapter 3. Operation
3.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
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Contents
3.2
Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
3.2.1 Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
3.2.2 Function Verification Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
3.2.3 Installation Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
3.2.4 The LCD Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
3.3 Setting Configuration Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
3.4 Archiving Site Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
3.5 Programming a Fault Alarm/Flow Direction Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
3.6 Configuring and Calibrating the Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
3.6.1 Configuring the Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
3.6.2 Calibrating the Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
3.7 Configuring and Testing the Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
3.7.1 Configuring the Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
3.7.2 Testing the Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
3.8 Calibrating the Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
3.9 Entering Temperature and Pressure Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
3.10 Entering Velocity Constants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
3.11 Displaying Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
3.12 Resetting the Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
3.12.1 Preparing the Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
3.12.2 Using PanaView to Clear the Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
3.12.3 Returning to Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Chapter 4. Error Codes
4.1
4.2
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Error Descriptions and Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
4.2.1 Err 0: No Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
4.2.2 Err 1: Low Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
4.2.3 Err 2: Soundspeed Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
4.2.4 Err 3: Velocity Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
4.2.5 Err 4: Signal Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
4.2.6 Err 5: Amplitude Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
4.2.7 Err 6: Cycle Skip, Accel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
4.2.8 Err 7: DSP Signal Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
4.2.9 Err 8: Temp Input Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
4.2.10 Err 9: Press In Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
4.2.11 Err 10: Totalizer Overflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Chapter 5. Diagnostics
5.1
5.2
5.3
vi
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Displaying Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Diagnostic Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
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Contents
5.4
5.5
Flowcell Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
5.4.1 Gas Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
5.4.2 Pipe Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Transducer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Chapter 6. Transducer Replacement
6.1
6.2
6.3
6.4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
T11 Transducer Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Replacing T11 Transducers in a Depressurized Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
6.3.1 Removing the Old Transducer from a Depressurized Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
6.3.2 T11 Transducer Installation Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
6.3.3 Installing a New Transducer in a Depressurized Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Replacing T11 Transducers in a Pressurized Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
6.4.1 Removing the Old Transducer from a Pressurized Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
6.4.2 T11 Transducer Installation Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
6.4.3 Installing a New Transducer in a Pressurized Pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Chapter 7. Specifications
7.1
7.2
7.3
7.4
7.5
7.6
System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.1 Operating Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.2 Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.3 Meter Nominal Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.4 Flow Velocity Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronics Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.1 Operating Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.2 Random Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.3 Sinusoidal Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.4 Mechanical Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.5 Power Voltage Variation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.6 Short Time Power Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.7 Bursts (Transients) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.8 Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.9 Electromagnetic Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T11 Transducer Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spoolpiece Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sentinel Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6.1 Spoolpiece Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6.2 Electronics Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6.3 Standard Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
105
105
105
105
106
107
111
111
111
111
112
112
112
112
113
113
114
115
117
117
118
118
Appendix A. CE Mark Compliance
A.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
A.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Sentinel™ User’s Manual
vii
Contents
Appendix B. Data Records
B.1 Service Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
B.2 Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
B.3 Option Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Appendix C. Brazilian INMETRO Approval
Appendix D. NMI Nederlands Meetinstituut Approval
Appendix E. Romanian Bureau of Legal Metrology Approval
viii
Sentinel™ User’s Manual
Chapter 1. Installation
Chapter 1.
1.1
Installation
Introduction
The GE Sentinel, shown in Figure 1 below, is a flow measurement system that includes a multi-path ultrasonic
flowmeter, associated upstream piping, and a flow conditioner. The entire system is shipped fully assembled and
configured. The system was designed specifically for the natural gas custody transfer industry and meets or exceeds all
requirements of AGA Report No. 9.
1.2
Advantages
The Sentinel Flow Measurement System features numerous unique advantages:
•
High turndown ratio
•
Low sensitivity to many upstream flow disturbances
•
Capability of bi-directional flow measurement with equal accuracy
•
Minimal maintenance
•
Transducer replacement without the need for pipe shutdown or recalibration
Figure 1: Sentinel Flow Measurement System
Sentinel™ User’s Manual
1
Chapter 1. Installation
1.3
Meter Components
Figure 19 on page 27 shows the complete Sentinel system and each item is described in Table 1 and Table 2 below.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Component
Meter Body
Name and Specification Plate
Transducer Holder Assembly
Table 1: Component Descriptions
Description
Measurement section of a Sentinel System.
All pertinent information in a single location.
Device to support a transducer and provide a mounting point for the
Insertion Mechanism.
Flow sensor to transmit and receive ultrasonic waves.
Conductors assembled and rated for hazardous areas.
Transducer
Cable Assembly - Transducer
to Electronics Unit
Explosion-Proof Junction Box Housing for electrical connections in hazardous area.
Electronics Unit
Meter electronics equipment, including power supply, processing
unit and communications.
External Conduits Connection Location for power and communications connections. Cable glands
are 3/4” NPT.
Upstream Spoolpiece
Meter run section (downstream of the flow conditioner) which
(length = 10 x ID)
allows the flow to develop before entering the meter body.
Flow Conditioner
Device to reduce the effects of upstream piping configurations.
Model CPA 50E
Downstream Spoolpiece*
Meter run section (downstream of the flow conditioner) which
(length = 10 x ID)
allows the flow to develop before entering the meter body.
Flow Conditioner*
Device to reduce the effects of upstream piping configurations.
Model CPA 50E
Nuts and Bolts
Hardware to hold flanges together.
Gasket
Seal between each set of flanges.
Flowcell Stand
Structure to support the meter body during shipping and storage.
(removed after installation)
Pressure Port
1/4” female NPT (shipped with pipe plug installed).
* Optional items for bi-directional flow applications.
Qty
1
1
4
4
4
4
1
4
1
1
1*
1*
AR
AR
2
1
Table 2: Component Materials
Component
Materials (ASTM)
Pipe Flanges and Fittings
Carbon Steel (A105 or A350 LF2*)
Pipe Sections
Carbon Steel (A106 Gr. B or A333 Gr. 6*)
Transducer Holder Parts
Stainless Steel 316/316L (A276)
T11 Transducers
Titanium CP Gr. 2 (B348/B381) or Stainless Steel 316/316L (A276)
* A350 LF2 and A333 Gr. 6 are used for low temperature service and are specified by the customer.
2
Sentinel™ User’s Manual
Chapter 1. Installation
1.4
Name and Specification Plate
The location of the Sentinel specification plate is shown in Figure 1 on page 1 and Figure 19 on page 27. Figure 2
below shows a blank plate. The specifications can be filled in by the user, for quick reference while using the manual.
Flow Direction
Tag No.:
Date:
Serial No.:
PO No.:
SO No.:
Meter Size:
Inner Diameter:
Flange Class:
Dry Weight:
Meter Body Material:
Flange Material:
Body Design Code:
Flange Design Code:
Storage Temp.:
Ambient Oper. Temp.:
Process Temp.:
Max. Oper. Pressure:
Flow Range:
Figure 2: Sentinel Data Plate
1.5
Principles of Operation
The Sentinel Measurement System uses ultrasonic transit-time technology. A brief description of transit-time theory
follows. For more information about the theory, and the use of GE ultrasonic flowmeters for measuring flow, please
refer to Ultrasonic Measurements for Process Control by L.C. Lynnworth (Academic Press, 1989).
Sentinel™ User’s Manual
3
Chapter 1. Installation
1.5.1 Transit-Time Method
The transit time technique uses a pair of transducers, with each transducer alternately sending and receiving coded
ultrasonic signals through the fluid. Figure 3 below shows the paths used in the Sentinel. When the fluid is flowing,
signal transit time in the downstream direction is shorter than in the upstream direction; the difference between these
transit times is proportional to the flow velocity. The Sentinel measures this very small time difference and, using
various digital signal processing techniques combined with programmed pipe parameters, determines the flow rate and
direction.
Downstream
Transducer
Upstream
Transducer
Fluid
Flow
Upstream
Transducer
Signal Path
Signal Path
Downstream
Transducer
Figure 3: Path Configuration
1.5.2 Transducers
When in a transmit cycle, transducers convert electrical energy into ultrasonic pulses and then convert the ultrasonic
pulses back to electrical energy when in a receive cycle. In other words, they act like loudspeakers when transmitting
the signal and like microphones when receiving it. They perform the actual data transmission and collection, thus
interrogating the flow.
The transducers in the Sentinel Measurement System were specifically designed to work with the available Insertion
Mechanism. In the event that a transducer becomes damaged or non-functional, it can be replaced without shutting
down the pipeline. The insertion mechanism is an option available with all offered versions of the Sentinel. To keep the
fluid from escaping while the transducer is being replaced, it is recommended that a shutoff valve be part of the original
transducer holder assembly.
4
Sentinel™ User’s Manual
Chapter 1. Installation
1.5.3 Multi-Path Design
Multi-path ultrasonic flowmeters are designed with more than one pair of transducers to interrogate the flow field in
different locations and more accurately determine the actual flow rate. The Sentinel Measurement System uses two
measurement locations. Both measurement paths are located along a diameter of the meter body and tilted at an angle.
The two measurement paths are orthogonal to each other (see Figure 3 on page 4).
1.5.4 Flow Profile
One of the main factors affecting an ultrasonic flow measurement is the flow profile. If the flow profile is known,
mathematical modeling of the flow and the relationships between the paths' raw data can be made. This justifies the
required use of a flow-conditioning device with this system. A simulation example of how the flow conditioner reduces
secondary flow is shown in Figure 4 below. Maintaining a constant flow-profile shape across all flow velocities, pipe
sizes and upstream flow disturbances is difficult. For this reason, the factory has tested the Sentinel under various
conditions in an effort to determine its operational limits.
Disturbance Element
Irregular
Velocity
Profile
Vz
5D
Regular
Velocity
Profile
10 D
Vz
Vx, Vy
y
Flow Conditioner
Strong Cross Flow
Vx, Vy ≈ 0
x
z
Cross Flow is Eliminated
Figure 4: Using a Flow Conditioner to Influence Flow Profile
Sentinel™ User’s Manual
5
Chapter 1. Installation
1.5.5 Maximum and Minimum Flow
Maximum and minimum flow rates through the Sentinel Flow Measurement System are based on the pipe diameter and
the process fluid pressure. The information in the following tables is approximate, and is based on representative
natural gas components at a process temperature of 70°F (21°C). See Table 3 and Table 4 below for English units and
Table 5 on page 7 and Table 6 on page 7 for metric units.
Table 3: Maximum Flow Rates (ft/sec)
10”
12”
14”
16”
psig
6”
8”
18”
20”
24”
100
16.2
28.0
44.2
47.3
57.2
74.7
94.5
117.5
169.9
200
30.7
53.2
83.9
89.8
108.6
141.8
179.5
223.1
322.6
400
61.1
105.9
166.8
178.6
215.9
282.0
357.0
443.6
641.6
600
93.3
161.5
254.6
272.6
329.5
430.4
544.8
677.0
979.1
800
127.3
220.4
347.4
371.9
449.4
587.1
743.2
923.4
1335.6
1000
163.0
282.2
444.9
476.3
575.6
751.9
951.8
1182.7
1710.5
1200
200.3
346.8
546.7
585.3
707.3
924.0
1169.6
1453.3
2102.0
1400
238.8
413.6
651.9
697.9
843.5
1101.9
1394.7
1733.1
2506.6
1480
254.5
440.7
694.7
743.7
898.8
1174.1
1486.2
1846.8
2671.0
Maximum flow rates are based on 118 ft/sec flow velocity for 6” through 10” diameter pipes,
and on 89 ft/sec for 12” through 24” diameter pipes.
Table 4: Minimum Flow Rates (ft/sec)
10”
12”
14”
16”
psig
6”
8”
18”
20”
24”
100
0.3
0.6
0.9
0.8
1.0
1.2
1.6
2.0
2.8
200
0.6
1.1
1.7
1.5
1.8
2.4
3.0
3.7
5.4
400
1.2
2.1
3.3
3.0
3.6
4.7
5.9
7.4
10.7
600
1.9
3.2
5.1
4.5
5.5
7.2
9.1
11.3
16.3
800
2.5
4.4
6.9
6.2
7.5
9.8
12.4
15.4
22.2
1000
3.3
5.6
8.9
7.9
9.6
12.5
15.8
19.7
28.4
1200
4.0
6.9
10.9
9.7
11.8
15.4
19.4
24.2
35.0
1400
4.8
8.3
13.0
11.6
14.0
18.3
23.2
28.8
41.7
1480
5.1
8.8
13.9
12.4
14.9
19.5
24.7
30.7
44.4
Minimum flow rates are based on 2.36 ft/sec flow velocity for 6” through 10” diameter pipes,
and on 1.48 ft/sec for 12” through 24” diameter pipes.
6
Sentinel™ User’s Manual
Chapter 1. Installation
1.5.5 Maximum and Minimum Flow (cont.)
Table 5: Maximum Flow Rates (m/sec)
20cm
25cm
30cm
36cm
41cm
46cm
bar
15cm
51cm
61cm
7
9.2
15.9
25.0
22.3
26.9
35.2
44.5
55.3
80.0
14
17.4
30.1
47.5
42.3
51.1
66.8
84.5
105.0
151.9
28
34.6
59.9
94.5
84.1
101.7
132.8
168.1
208.9
302.1
41
52.8
91.5
144.2
128.4
155.1
202.7
256.5
318.8
461.0
55
72.1
124.8
196.7
175.1
211.6
276.5
349.9
434.8
628.9
69
92.3
159.8
251.9
224.3
271.0
354.1
448.2
556.9
805.5
83
113.4
196.4
309.6
275.6
333.1
435.1
550.7
684.3
989.8
96
135.3
234.2
369.2
328.6
397.2
518.9
656.8
816.1
1180.3
102
144.1
249.6
393.4
350.2
423.2
552.9
699.8
869.6
1257.8
Maximum flow rates are based on 0.72 m/sec flow velocity for 15 cm through 25 cm diameter pipes,
and on 0.45 m/sec for 30 cm through 61 cm diameter pipes.
Table 6: Minimum Flow Rates (m/sec)
20cm
25cm
30cm
36cm
41cm
46cm
bar
15cm
51cm
61cm
7
0.5
0.8
1.3
1.3
1.6
2.1
2.7
3.3
4.8
14
0.9
1.5
2.4
2.5
3.1
4.0
5.1
6.3
9.1
28
1.7
3.0
4.7
5.1
6.1
8.0
10.1
12.6
18.2
41
2.6
4.6
7.2
7.7
9.3
12.2
15.4
19.2
27.7
55
3.6
6.2
9.8
10.5
12.7
16.6
21.0
26.1
37.8
69
4.6
8.0
12.6
13.5
16.3
21.3
27.0
33.5
48.4
83
5.7
9.8
15.5
16.6
20.0
26.2
33.1
41.2
59.5
96
6.8
11.7
18.5
19.8
23.9
31.2
39.5
49.1
71.0
102
7.2
12.5
19.7
21.1
25.5
33.2
42.1
52.3
75.6
Minimum flow rates are based on 36 m/sec flow velocity for 15 cm through 25 cm diameter pipes,
and on 27 m/sec for 30 cm through 61 cm diameter pipes.
Sentinel™ User’s Manual
7
Chapter 1. Installation
1.6
Installation Guidelines
This section provides general information with respect to the mechanical and electrical installation, and should be
thoroughly reviewed before the system is installed. To ensure safe and reliable operation of the Sentinel, the system
must be installed in accordance with the guidelines established by GE, as explained in this chapter.
WARNING! The Sentinel Flow Measurement System can measure the flow rate of many gases,
some of which are potentially hazardous. The importance of proper safety practices cannot be
overemphasized.
WARNING! 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.
WARNING! To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
8
Sentinel™ User’s Manual
Chapter 1. Installation
1.6.1 Sentinel Location
For both uni-directional and bi-directional flow (see Figure 5 and Figure 6 below), a minimum of five diameters of
straight pipe shall be provided by the customer on either side of the meter run, directly upstream of the flow
conditioning plate and downstream of any disturbances or pipe bends. An additional length of straight pipe will help
produce a more symmetrical flow profile, thus reducing the measurement uncertainty.
Flow Conditioning Plate
(provided but not shown)
Flow
Direction
Five Diameters
of Straight Pipe
(minimum)
Ten-DiameterLong Spoolpiece
(provided)
Sentinel Flowmeter
(provided)
Five Diameters
of Straight Pipe
(minimum)
Figure 5: Typical Sentinel Installation, Uni-Directional Flow
Flow Conditioning Plate
(provided but not shown)
Flow
Direction
Sentinel Flowmeter
(provided)
Flow Conditioning Plate
(provided but not shown)
Five Diameters
of Straight Pipe
(minimum)
Ten-DiameterLong Spoolpiece
(provided)
Five Diameters
of Straight Pipe
(minimum)
Figure 6: Typical Sentinel Installation, Bi-Directional Flow
Sentinel™ User’s Manual
9
Chapter 1. Installation
1.6.2 Pressure Drop
The flow conditioning plate causes a pressure drop through the line. This pressure drop is directly related to the gas
composition and properties, and to the flow velocity through the pipe.
Using a representative natural gas composition at 70° F, an estimate of the associated pressure drop can be computed
for reference. Figure 7 below shows pressure drop as a function of velocity for a uni-directional flow installation with a
single flow conditioning plate at various line pressures. The pressure drop through the meter section would be doubled
for a bi-directional installation with two flow conditioning plates.The example shown is for natural gas, flowing at
40 ft/sec through a pipe with a pressure of 1000 psi. The pressure drop across the flow conditioning plate is about
1 psid.
When the actual gas properties are known, a more accurate calculation can be performed using the following basic
equation for the pressure drop:
2
1
∆P = --- kρV
2
where ∆P is the pressure drop across the flow conditioning plate, k is the loss coefficient for the plate (1.6), ρ is the gas
density (based on pressure, temperature, and gas composition), and V is the flow velocity through the pipe.
Pressure Drop (psid)
Associated Flow Conditioning Plate Pressure Drop
Flow Velocity (ft/sec)
Figure 7: Flow Conditioning Plate Pressure Drop
10
Sentinel™ User’s Manual
Chapter 1. Installation
1.6.3 Test Results
Testing and analysis show that the meter, in conjunction with a flow conditioning plate, installed as described above,
can tolerate the following upstream disturbances:
•
Simple straight pipe runs (minimal internal pipe disturbances)
•
Single elbow
•
Double elbows, in plane
•
Double elbows, out of plane
Table 7 below lists the test results of a Sentinel Flow Measurement System installed in a straight run of pipe, compared
to the requirements of AGA9.
Category
% Error
Max Peak-To-Peak Error
Repeatability
Resolution
Velocity Sampling Interval
Zero Flow Reading
Table 7: Typical Test Results
Sentinel
AGA9 Requirements
± 0.5%
± 1.0%
0.4%
0.7%
± 0.2%
± 0.2%
0.003 ft/sec
0.003 ft/sec
0.2 sec
≤ 1 sec
≤ 0.007 ft/sec
< 0.040 ft/sec
Testing with the meter installed with the other pipe configurations listed above, shows that the meter continues to meet
the requirements of AGA9. The error percentage is never more than 0.3% additional uncertainty for such upstream
configurations.
Testing also shows that variations of pressure, temperature and natural gas composition, within the range of the AGA9
specifications, do not affect Sentinel accuracy in meeting AGA9 requirements.
Sentinel™ User’s Manual
11
Chapter 1. Installation
1.6.4 Installation Precautions
Any questions with respect to the installation should be addressed prior to beginning the installation. Failure to install
the Sentinel correctly can increase measurement uncertainty.
CAUTION! To avoid possible strain, refer to the Sentinel label for the assembly weight, use a
properly-rated lifting assembly, and place the lifting straps in the indicated locations (see Figure 8
below).
All the mechanical and electronic components are shipped fully assembled (see Figure 1 on page 1), however the
following precautions should be observed:
•
Make sure the difference between the inside diameter of the pipe and that of the Sentinel spoolpiece does not
exceed 1%. Changes in internal diameters will cause flow profile disturbances.
•
Make sure any non-symmetrical offset does not exceed 1%. Misalignment between the piping and the
spoolpiece may cause flow profile disturbances.
•
Make sure the gasket is centered on the flange faces and does not protrude into the pipe. Protrusion of the
gasket into the pipe may cause flow profile disturbances.
•
Make sure the Sentinel is oriented with the flow transmitter in a vertical position at the top (see Figure 10 on
page 13).
Spanner Bar
Lifting Strap
Lifting Strap
Figure 8: Lifting Strap Locations
12
Sentinel™ User’s Manual
Chapter 1. Installation
1.6.4 Installation Precautions (cont.)
•
Make sure to leave enough clearance on the top and sides of the system to allow for maintenance work.
IMPORTANT: If a Transducer Insertion Mechanism is required, the recommended minimum clearance for transducer
replacement is a space 18” in diameter by 36” long around each transducer (see Figure 9 below).
"D
"L
18
36
Figure 9: Insertion Mechanism Minimum Clearance
1.7
Installing the System
Being mindful of the “Installation Precautions” on page 12, complete the following steps:
1. Make sure the gaskets are in place on the flanges.
2. Support the Sentinel between the flanges on the pipe.
3. Align the flange mounting holes (see Figure 10 below).
4. Secure the spoolpiece to the pipe by using the appropriate hardware.
Figure 10: Sentinel End View - Mounting Flange
Sentinel™ User’s Manual
13
Chapter 1. Installation
1.8
Making the Electrical Connections
This section contains instructions for making the necessary electrical connections to the flow transmitter (see Figure 11
below). The wiring between transmitter and transducers has been accomplished at the factory. No further work is
required on this portion of the wiring.
WARNING! To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
IMPORTANT: The meter spoolpiece is grounded to the electronics. This configuration must be considered when
applying cathodic protection to the pipe line. The power ground applied to the instrument should be at
the cathodic protection voltage level.
1 Frequency
1 Alarm
2 Analog Outputs (4-20 mA)
2 Analog Inputs
Power
RS485 Modbus
RS232
or
RS485
Flow
Computer
Pressure
Corrected
Volumetric
Flow
Temperature
Sentinel
Meter Calibration, Data Collection,
Configuration, and Security
PanaView™
Instrument Interface
Software
Figure 11: Sentinel Flow Measurement System Electrical Connections
14
Sentinel™ User’s Manual
Chapter 1. Installation
1.8.1 Removing the Covers
WARNING! Always disconnect the line power from the meters before removing either the front
covers or the rear covers. This is especially important in a hazardous environment.
1. Disconnect any previously wired power line from the flow transmitter enclosure #2 (without a display).
2. Loosen the set screw on one or both rear covers, as required to access the needed electrical connections.
3. Place a rod or long screwdriver across a cover in the slots provided, and rotate the cover counterclockwise until
it comes free from the enclosure. If necessary, repeat for the other cover.
4. Note the label inside each rear cover (see Figure 12 below) to assist in wiring the power (enclosure #2) and the
option card connections (enclosure #1).
Proceed to the appropriate section of this chapter to make the required wiring connections.
Power Connections
Option Card Connections
OPTION
CARD
1
2
3
4
POWER
5
TB5
6
7
WARNING
DISCONNECT POWER
BEFORE WORKING
ON UNIT
8
9
10
11
12
J2
Enclosure #2
Enclosure #1
Figure 12: Connection Labels Inside Rear Covers
Sentinel™ User’s Manual
15
Chapter 1. Installation
1.8.2 Wiring the Line Power
The Sentinel may be ordered for operation with a power input of either 85-264 VAC or 15–36 VDC (see “Electronics
Ordering Information” on page 118). The label on the side of the electronics enclosure lists the required line voltage
and power rating for the meter. Be sure to connect the Sentinel to the specified line voltage only.
Note: For compliance with the EU 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 unit.
Note: Use only Class 2 rated power supplies for the line power to DC instruments.
IMPORTANT: Use cable and cable glands approved for Class I, Division 1 locations.
See Figure 13 on page 17 to locate terminal block TB5 and connect the line power to the Sentinel as follows:
WARNING! Improper connection of the line power leads or connecting a Sentinel to the incorrect
line voltage may damage the unit. It may also result in hazardous voltages at the meter body and
associated piping as well as within the electronics enclosure.
1. Prepare the line power leads by trimming the line and neutral AC power leads (or the positive and negative DC
power leads) to a length 0.5 in. (1 cm) shorter than the ground lead. This ensures that the ground lead is the last
to detach if the power cable is forcibly disconnected from the meter.
2. Install a suitable cable gland in the Power Cable Inlet conduit hole indicated in Figure 13 on page 17. If
possible, avoid using the other conduit holes for this purpose, to minimize any interference in the circuitry
from the AC power line.
WARNING! To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
3. Strip 1/4-in. of insulation from the end of each of the three line power leads.
4. Route the cable through the chosen conduit hole of enclosure #2 and connect the line power leads to terminal
block TB5, using the pin number assignments shown in Figure 21 on page 29 and Figure 13 on page 17.
5. Leaving a bit of slack, secure the power line with the cable clamp.
16
Sentinel™ User’s Manual
Chapter 1. Installation
1.8.2 Wiring the Line Power (cont.)
WARNING! Make sure the front and rear covers of both enclosures, along with their O-ring seals,
are installed on the transmitters, and the set screws tightened before applying power in a hazardous
environment.
6. After the line power has been connected to the flow transmitter (enclosure #2), replace the rear cover, tighten
the set screw, and proceed to the next section.
tiv
e
sit
ga
Ne
d
Gn
Ne
ut
ra
Po
l
Li
ne
1
ive
DC
AC
1
2
2
3
3
Cable Gland
Cable Gland
Figure 13: Enclosure #2 - Wiring the AC or DC Line Power
Note: Use only Class 2 rated power supplies for the line power to DC instruments.
Sentinel™ User’s Manual
17
Chapter 1. Installation
1.8.3 Wiring the Serial Port
The flow transmitter is equipped with a built-in serial communications port. The standard port is an RS485 interface,
but an optional RS232 interface is available upon request. For more information on serial communications refer to the
GE EIA-RS Serial Communications manual (916-054).
1.8.3a
Wiring the RS485 Interface
Upon request, the standard RS485 port on the meter may be configured as a three-wire RS232 interface. However, the
meter must be configured at the factory for RS232 operation.
Note: Use the optional RS485-to-RS232 converter to connect the flow transmitter with RS485 serial port to a
computer with an RS232 serial interface port.
To wire the RS485 serial port, refer to Figure 20 on page 28 and either Figure 22 on page 30 (AC) or Figure 23 on
page 31 (DC) and complete the following steps:
1. Disconnect the main power to the meter and remove the rear cover of enclosure #1.
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 14 below.
J1 / TB6
1
2
Converter
SHLD 3
C
RX (RS485–) 4
–
TX (RS485+) 5
+
Figure 14: Typical RS485 Connections
WARNING! To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
4. If the wiring of the unit has been completed, reinstall the rear cover on enclosure #1 and tighten the set screw.
18
Sentinel™ User’s Manual
Chapter 1. Installation
1.8.4 Wiring the Modbus Communications Line
The Sentinel uses the RS485 interface with the Modbus communications protocol for a maximum line distance of up to
4000 ft (1200 m). GE recommends using shielded 22-gauge (22 AWG) cable having a characteristic impedance of
120 ohms, with a 120 ohm termination at each end of the communications line.
Connect the two leads and the shield of the Modbus line to terminal block J5, slot 2 of the flowmeter., as shown in
Figure 20 on page 28 and either Figure 22 on page 30 (AC) or Figure 23 on page 31 (DC).
1.8.5 Wiring the Input/Output (I/O) Card
The Sentinel can be configured with the following I/O functions:
•
Two 0/4 to 20mA isolated outputs, 600Ω maximum load
•
One frequency (HF) output, optically isolated, from DC to 10 kHz maximum
•
One hermetically sealed Form C alarm relay that can be applied to indicate flow direction or fault
•
Two isolated 4 to 20mA inputs and 24V loop power for pressure and temperature
•
Optional two HF outputs and two alarm outputs or one HF output and 4 to 20mA inputs
Wiring any I/O function requires completion of the following general steps:
1. Disconnect the main power to the flowmeter and remove the rear cover of enclosure #1.
2. Install a cable clamp in the chosen conduit hole on the top of the electronics enclosure and feed a standard
twisted-pair cable through this conduit hole.
3. Locate the 12-pin terminal block (J2) in Figure 20 on page 28 and wire the I/O terminal as indicated on the
label inside the rear cover (see Figure 13 on page 17 and Figure 20 on page 28). For wiring diagrams, see
either Figure 22 on page 30 (AC) or Figure 23 on page 31 (DC).
4. Secure the cable clamp.
WARNING! To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
5. If wiring of the unit has been completed, reinstall the rear cover on the enclosure and tighten the set screw.
Sentinel™ User’s Manual
19
Chapter 1. Installation
1.8.6 Wiring the Alarm Relay
The maximum electrical rating for the relay is listed in Chapter 7, Specifications. The alarm relay can be wired as either
Normally Open (NO) or Normally Closed (NC).
An alarm relay should be wired for 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 15 below for the operation of a normally
open alarm relay in fail-safe mode.
Connect the alarm relay in accordance with the wiring instructions shown on the label inside the enclosure #1 rear
cover (see Figure 13 on page 17 and Figure 20 on page 28). For wiring diagrams, see either Figure 22 on page 30
(AC) or Figure 23 on page 31 (DC).
Fail-Safe
(not triggered)
NO
C
NC
ALARM
MONITORING
DEVICE
Fail-Safe
(triggered or power failure)
NO
C
NC
ALARM
MONITORING
DEVICE
Figure 15: Fail-Safe Operation
20
Sentinel™ User’s Manual
Chapter 1. Installation
1.8.7 Wiring 0/4-20 mA Analog Inputs
The two isolated 0/4-20 mA analog inputs (designated as C and D), each include a 24 VDC power supply for
loop-powered transmitters. Either input may be used to process a temperature signal, while the other input can be used
to process the pressure signal.
Note: To enter programming data during operation of the Sentinel, it will be necessary to know which input is
assigned to which process parameter. This information should be 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 internal 24 VDC power supply on the analog input terminal or
by an external power supply. Figure 16 below shows typical wiring diagrams, with and without an external power
supply, for one of the analog inputs. Wire the analog inputs as shown on the label in the enclosure #1 rear cover (see
Figure 13 on page 17 and Figure 20 on page 28).
With External Power Supply
24 VDC
POWER SUPPLY
-
Analog Input
IN RTN
IN +
+
Transmitter
+ IN
Sensor
– OUT
+24V
With Internal Power Supply
Analog Input
IN RTN
IN +
Transmitter
– OUT
Sensor
+ IN
+24V
Figure 16: Analog Input Wiring Diagram
Sentinel™ User’s Manual
21
Chapter 1. Installation
1.8.8 Wiring the Frequency/Totalizer Output
Figure 17 and Table 8 below shows sample wiring diagrams and terminal pin functions for a totalizer output circuit and
a frequency output circuit (designated as Output A).
Totalizer Output
Sentinel™
Pulse Counter
Volts +
(Int. Pwr. Sup.)
OUT
Load
RTN
Volts (Common)
Frequency Output
Sentinel™
Frequency Counter
+5V
200 Ω
OUT
IN
RTN
Common
Figure 17: Totalizer and Frequency Output Wiring
I/O Pin #
1
2
3
4
5
6
7
8
9
10
11
12
22
Table 8: I/O Connections
Function
A - Freq. Out
A - Freq. Rtn
A - NC
B Alarm - NO
B Alarm - COM
B Alarm - NC
C - +24V Out
C - Analog In +
C - Analog In Rtn
D - +24V Out
D - Analog In +
D - Analog In Rtn
Sentinel™ User’s Manual
Chapter 1. Installation
1.8.9 Wiring the Std 0/4-20 mA Analog Output
The standard configuration of the flow transmitter includes two isolated 0/4-20 mA analog outputs (designated as
outputs 1 and 2 on the hardware, corresponding to outputs A and B in the software). Connections to these outputs may
be made with standard twisted-pair wiring, but the current loop impedance for these circuits must not exceed 600 ohms.
To wire the analog outputs, complete the following steps:
1. Disconnect the main power to the flowmeter and remove the enclosure #1 rear cover.
2. Install the required cable clamp in the chosen conduit hole on the side of the electronics enclosure.
3. Refer to Figure 20 on page 28 for the location of the J1 terminal block and wire the analog outputs as shown.
Secure the cable clamp.
WARNING! To meet CE Mark requirements, all cables must be installed as described 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.
After the Sentinel has been completely installed and wired, proceed to Chapter 2, Initial Setup, to program the
flowmeter.
WARNING! Make sure both covers, with their o-ring seals, are installed, and the set screws
tightened, before applying power in a hazardous environment.
Sentinel™ User’s Manual
23
Chapter 1. Installation
1.8.10 Adjusting the LCD Contrast and Brightness
CAUTION! If the Sentinel is to be installed in a hazardous area, be sure to adjust the backlight
brightness and display contrast of the meter LCD display in enclosure #1 before mounting the
system. The meter covers should not be removed in a hazardous area while the line power is on.
Both the contrast and the brightness of the flowmeter LCD display may be adjusted to suit individual needs. There are
two 3/4-turn adjustment potentiometers located on the LCD circuit board in enclosure #1 (see Figure 18 below).
Contrast
Adjustment
Backlight
Adjustment
LCD Display
Board
Figure 18: Enclosure #1 Front View - Cover Removed
24
Sentinel™ User’s Manual
Chapter 1. Installation
1.8.10 Adjusting the LCD Contrast and Brightness
Using these potentiometers for the LCD adjustment, complete the following steps:
Note: If the Sentinel is to be mounted in a non-hazardous location, the following adjustments may be made after the
installation is complete.
WARNING! Never remove the covers from the flowmeter in a hazardous environment while the line
power is on.
1. Make sure the Sentinel is in a safe environment.
2. Loosen the set screw on the enclosure #1 front cover.
3. Place a rod or long screwdriver across the cover in the slots provided, and rotate the front cover
counterclockwise until it comes free from the enclosure.
4. With power applied to the meter (see “Wiring the Line Power” on page 16), carefully use a small screwdriver
to adjust the LCD brightness. Turning the BKLT (backlight) pot fully clockwise yields maximum brightness.
5. In a similar manner, adjust the CONT (contrast) pot to set the LCD contrast as desired. At either extreme of the
CONT pot, the display is unreadable. Turn the pot fully counterclockwise and then turn it clockwise very
slowly until the display is clear.
6. After the desired LCD adjustments have been made, replace the meter front cover and proceed with the
installation.
Sentinel™ User’s Manual
25
Chapter 1. Installation
[no content intended for this page]
26
Sentinel™ User’s Manual
Chapter 1. Installation
4 places
8
8
Meter Body Length
(Flange Face-to-Face)
16
Nominal
Pipe Size
Distance
(in.)
6
45
8
48
10
52
12
56
14
58
16
60
18
63
20
67
24
74
Top View
Note:
Item numbers correspond to the numbers
listed in Table 1-1 on page 1-2.
4 places
4 places
4
16 places
Figure 19: Sentinel Flow Measurement System Assembly
4 places
7
5
14
14
13
16 places
13
12
10
2
1
3
4 places
9
11
15
6
2 places
Upstream Spoolpiece
10 Dia. Long
(provided)
Meter Body Length
(see table)
Downstream Spoolpiece
10 Dia. Long
(bi-directional flow only)
4 places
End View
Side View
Sentinel™ User’s Manual
27
Chapter 1. Installation
NOTE: Enclosure #1 is shown from
the rear with the rear cover removed.
J2 - INPUT/OUTPUT CONN.*
J5 Pin No. Description
2
+
–
3
N/C
1
Pin #
Nameplate
Grounding
Jumper
Protective
Conductor
Terminal
J4 - CH2 TRANSDUCER**
Pin #
Desig.
1
CH2UP
2
CH2RTN Upstream RTN(-)
3
CH2RTN Downstream RTN(-)
4
CH2DN
Description
1
OUT
-
A
2
RTN
-
A
3
N/C
4
ALARM NO - B
5
ALARM COM - B
6
ALARM NC - B
7
OUT C - +24V
8
INPUT C - +
9
INPUT C - RTN
10
OUT D - +24V
11
INPUT D - +
12
INPUT D - RTN
*See wiring label inside rear cover.
Upstream SIG(+)
J1 - ANALOG & RS232/RS485
Pin #
Downstream SIG(+)
Conduit Hole
7pl
J3 - CH1 TRANSDUCER**
Sentinel™ User’s Manual
Description
Pin #
Desig.
1
CH1UP
2
CH1RTN Upstream RTN(-)
3
CH1RTN Downstream RTN(-)
4
CH1DN
Mounting Boss
Description
Upstream SIG(+)
Downstream SIG(+)
**Important:
Transducer connections and other wiring accomplished
at the factory are shown for information purposes only
and should not be changed by the user.
Desig.
Description
1
AOUT A+ Analog Output A+
2
AOUT A-
3
AOUT B+ Analog Output B+
4
AOUT B-
Analog Output B-
5
DTR
Data Term. Ready
6
CTS
Clear to Send
7
COM
Ground
8
RX
Receive / –
9
TX
Transmit / +
Figure 20: Sentinel Enclosure #1 - Terminal Block Layout
MODBUS CONN.
Analog Output A-
28
Chapter 1. Installation
Nameplate
Conduit Hole, 7pl
DC POWER INPUT
Pin #
Power Cable Inlet
Description
1
Line Positive
2
Line Negative
3
No Connection
Figure 21: Sentinel Enclosure #2 - Power Connections
NOTE: Enclosure #2 is shown from
the rear with the rear cover removed.
AC POWER INPUT
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 meter.
Sentinel™ User’s Manual
Mounting Boss
Pin #
Description
1
Line Power
2
Line Neutral
3
Earth Ground
29
Chapter 1. Installation
Notes:
Frequency
OUT1
RTN1
Red
Black
Alarm
NO
COM
Red
Black
#22 Twisted
2. Wire colors are represented as follows:
B = Black
O = Orange (from Mineral Insulated enclosure link)
Y = Yellow (from Mineral Insulated enclosure link)
R = Red
WM = White (from Mineral Insulated enclosure link)
W = White
#22 Twisted
+
–
#22 +Sield
Note 1
1345 Board
3 2 1
J5
J4
ENCLOSURE #2
J2
CH2
PC Board #703-1460
CH1
J1
ENCLOSURE #1
J1
RS485 –
RS485 +
J3
L
1
PC Board #703-1459
2
3
N
G
TB5
Twisted
Pair
Twisted
Pair
Twisted
Pair
Twisted
Pair
L
Channel
Up
Transducer
2
Down
Transducer
Channel
Down
Transducer
1
RS485
Up
Transducer
Important:
Transducer wiring, accomplished at the
factory, is shown for information purposes
only and should not be changed by the user.
Sentinel™ User’s Manual
+
–
RS232
RX
TX
AC
Figure 22: Sentinel AC Wiring Diagram (ref dwg #702-496)
RS485 –
RS485 +
Modbus
1. J5 as shown is on the 1345 Communication Board
that connects to the 1236 Board.
#18
N
G
#22 +Shield
RS485
Connections
RS232
Connections
AC POWER
Connections
30
Chapter 1. Installation
Notes:
Frequency
OUT1
RTN1
Red
Black
Alarm
NO
COM
Red
Black
#22 Twisted
2. Wire colors are represented as follows:
B = Black
O = Orange (from Mineral Insulated enclosure link)
Y = Yellow (from Mineral Insulated enclosure link)
R = Red
W = White
WM = White (from Mineral Insulated enclosure link)
#22 Twisted
+
–
#22 +Sield
Note 1
1345 Board
3 2 1
J5
J4
ENCLOSURE #2
J2
CH2
PC Board #703-1460
CH1
J1
ENCLOSURE #1
J1
RS485 –
RS485 +
J3
PC Board #703-1459
1
+
2
–
3
TB5
Twisted
Pair
Twisted
Pair
Twisted
Pair
Twisted
Pair
Figure 23: Sentinel DC Wiring Diagram (ref dwg #702-497)
RS485 –
RS485 +
Modbus
1. J5 as shown is on the 1345 Communication Board
that connects to the 1236 Board.
#18
Channel
Up
Transducer
2
Down
Transducer
Channel
Down
Transducer
1
RS485
Up
Transducer
Important:
Transducer wiring, accomplished at the
factory, is shown for information purposes
only and should not be changed by the user.
Sentinel™ User’s Manual
+
–
RS232
RX
TX
DC
+
–
#22 +Shield
RS485
Connections
RS232
Connections
DC POWER
Connections
31
Enclosure #1
Rear View
Rear View
Red
Blac
k
Brow
n
Blue
Red
Blac
k
Brow
n
Blue
Enclosure #2
Channel 2 DN
Channel 2 UP
PC Board
703-1459
PC Board
703-1460
Connector
e
Whit
ra
ng
e
R
B ed
Br lack
ow
Bl n
ue
1
J3
J4
O
4
CH
2
R
B ed
Br lack
o
Bl wn
ue
W
1
White
Yellow
Mineral Insulated Cable
4
CH
White
Orange
White
Channel 1 DN
k
Blac
1
Connector
Connector
White
Black
White
Connector
Black
Ye
hit
e
llo
w
k
ac
Bl
e
hit
W
Channel 1 UP
Figure 24: Sentinel Flow Transmitter - Internal Wiring (ref dwg #705-1093)
Chapter 1. Installation
Important:
The internal wiring illustrated here is accomplished
at the factory. It is shown for information purposes
only, and should not be changed by the user.
Sentinel™ User’s Manual
32
Chapter 2. Initial Setup
Chapter 2.
2.1
Initial Setup
Introduction
This chapter provides comprehensive instructions for programming the minimum amount of data required to place the
Sentinel Flow Measurement System into operation. In order to program the Sentinel, the user must have a personal
computer connected to the meter and the PanaView™ software, which shipped with the unit, installed on that PC.
Note: See the PanaView Graphical User Interface User’s Manual (910-211) for information on those User Program
features not covered in this chapter. The Sentinel is designed to be programmed and operated with PanaView
software only.
2.2
Adding a Communications Port
Under File open a New Meter Browser. The browser is designed to access computers and instruments with the look and
feel of a file management system. To connect to the instrument using a remote computer, first add that computer to your
network. If the computer is connected directly to the instruments, add the communication ports to the browser network.
Figure 25: Adding a New Communication Port to the PC
Place the mouse pointer over the name of the computer and press the right mouse button. This activates the selection
menu for this object (see Figure 25 above).
Select My Computer > New > Communications Port > and add a port by pressing the left mouse button.
Sentinel™ User’s Manual
33
Chapter 2. Initial Setup
2.2
Adding a Communications Port (cont.)
After the port is added, the port properties will need to be set. See Figure 26 below, which shows the default properties
for the meter. The communication settings can be modified at any time by selecting the port on the network tree with
the right mouse button and choosing Properties.
Note: Refer to Adding a New Communication Port in Chapter 4 of the PanaView Instrument Interface Software
Operation and Installation Guide (910-211).
Figure 26: Default Communication Parameters
34
Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.3
Adding the Sentinel to the Communications Port
Select the desired communication port by clicking once on it with the left mouse button (see Figure 27 below). Then
press the right mouse button to activate the pop-up menu. Select New > Meter > from the pop-up menu.
Figure 27: Adding the Sentinel to the Comm Port
If the node ID is known, select “I know the node ID of the meter I am adding to the network,” then click the OK button (see
Figure 28 below). If the node ID is not known proceed to page 37)
Note: The default node ID is 2. If another node ID was previously programmed, that data must be available in order
to select “I know the node ID of the meter I am adding to the network.”
Note: The network referred to in Figure 28 below is the network of meters under a single communication port. Up to
sixteen meters can be connected to form a PanaView meter network.
Figure 28: Instrument Node ID Acknowledgement
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Chapter 2. Initial Setup
2.3
Adding the Sentinel to the Communications Port (cont.)
Refer to Figure 29 below, and enter the ID number in the ID: entry, a meter name in the Name: entry, and then click on
the OK button.
Note: Do not enter any data in the Clock:, Master ID: or Slave ID: entries.
Figure 29: Setting the Node ID
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Sentinel™ User’s Manual
Chapter 2. Initial Setup
Adding the Sentinel to the Communications Port (cont.)
If the node ID is not known, select “I don't know the node ID of the meter I am adding to the network” and then click on the
OK button (see Figure 30 below).
Note: The network referred to in Figure 2-6 below is the RS485 connection between the instrument and the computer
RS232-to-RS485 connector.
Note: The new meter must be the only powered meter on the network.
Figure 30: Instrument Node ID Unknown
At the next prompt (see Figure 31 below) select “It is the only meter connected to the communication port” and then
click on OK .
Figure 31: Searching the Port for Instrument Node ID
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Chapter 2. Initial Setup
2.3
Adding the Sentinel to the Communications Port (cont.)
If PanaView found the meter, a window will pop up and inform the user which Node ID the meter is set to. The
operator can select to use the existing Node ID or a different Node ID (see Figure 32 below).
Note: The Node ID can be changed later on by going to the meter properties.
Figure 32: Selecting the Node ID
After communication has been established, the Node ID can be set to any “master” Node ID. A “master” Node ID is an
integer which is a multiple of 16.
Note: A “slave” Node ID is all the numbers between two consecutive masters. However the term “slave” does not
apply to the Sentinel.
If “I wish to use a different Node ID” is selected, the window in Figure 29 on page 36 appears, and the user must then
enter the Node ID number in the ID entry.
After the Node ID is entered in the Add Meter window ID box, click on the OK button to add the meter to the PanaView
network.
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Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.4
Meter Security
After the node address is set, the instrument will be added to the network of instruments on PanaView and the operator
will be given the opportunity to program the flowmeter parameters. Before any meter parameters can be changed, the
operator must be specified.
Click the mouse right button and then click on Properties. Press the Security button on the Properties Form to bring up
the Security Form. Access the required security level by typing the User Name and Password dialog boxes (see
Figure 33 below).
The meter provides three security levels:
•
Level 1 security is available to GE service engineers only. It gives access to configuration parameters that
should be adjusted only during commissioning or repair.
•
Level 2 security is for the supervisor who has overall responsibility for the meter. The supervisor may change
his or her password and the passwords of the three user’s accounts. The default User Name and Password are:
User Name: Supervisor
Password: [The assigned Serial Number]
Figure 33: Security Form
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Chapter 2. Initial Setup
2.4
•
Meter Security (cont.)
Level 3 security are the users’ accounts. The meter provides for three separate users. These accounts are:
User Name: User1
Default Password: User1
User Name: User2
Default Password: User2
User Name: User3
Default Password: User3
The system supervisor must initialize all three user accounts with new passwords, whether used or not, to prevent
unauthorized access to the meter parameters.
For additional accountability, an Audit Trail log is kept in permanent memory. This file cannot be erased except by
physical access to the main board of the meter electronics. To view the log, right click on the desired meter in the meter
browser, select Properties, then Security, then View Log. No password is needed to view the log. In addition to parameter
modification, the log records if the meter has been reset and/or when power to the electronics has been interrupted (see
Figure 34 below).
Figure 34: Example Audit Trail Log
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Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.5
Meter Properties
Place the mouse pointer over the selected meter and press the right mouse button and then Properties, this will open the
form shown in Figure 35 below.
All the fields with white background can be changed without the security setup and sent to the meter by clicking on the
OK button. Click the More button to display a list of the instrument firmware revisions.
Figure 35: Meter Properties Display
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Chapter 2. Initial Setup
2.6
Signal Setup
Click on Signal Setup at the bottom of the Meter Properties Form and the Signal Setup form appears (see Figure 36
below).
Note: In order to access the Program node, you must first sign in. Click on the Set User button and then log in with the
correct user name and password.
Figure 36: Signal Setup Display
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Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.6
Signal Setup (cont.)
The following information appears on the Signal Setup screen:
•
Node ID: This is a display of the Node ID assigned to the instrument. It cannot be changed from this form but
rather by using the Properties form.
•
Version: This is the Main Firmware version as tabulated in the firmware signature
•
# of Channels: The default number of channels is 2. The 2-path meter is using both channels of the electronics.
•
# of Batches: The default value is 8. This is the number of transmit/receive signals sent prior to transmit
direction change (upstream/downstream). The firmware will average the receive signal prior to the instant
velocity calculation.
•
FIFO Size: This is the FIFO function size as reported by the firmware. In the event that the FIFO size is
increased due to hardware upgrade, the firmware will report the new size.
•
Relay Delay Time: The default time is 5ms. This is the minimum time between relays of two consecutive
relay switches.
•
Transmit Pulses: The default value is 4. This is the number of transmit pulses which send to the transducers in
each transmit state.
•
Program/Run button: The default mode is Run and the button then displays Program. To switch the mode to
Program, click on the button and then the window will display Run.
Note: The user must be logged-in to enter the Program mode.
Note: The instrument will switch to Run mode after five minutes of no input from the user.
•
Operating mode: This display indicates if the instrument is in idle in the program mode or normally operating
in run mode.
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Chapter 2. Initial Setup
2.6.1 Channel Tabs
Use this section to program the meter parameters, which requires the user to login before any parameters can be
changed.
2.6.1a
General
Figure 37 on page 45 shows a typical General tab display:
•
Path Length (P): This is the acoustics path length. The value is measured on the assembled meter.
•
Axial Distance (L): The value of the axial distance is measured on the assembled meter or derived from
Quality Control Report measurement.
•
Pipe Diameter: This is the inside diameter of the meter. This parameter is used by the meter as a factor in
volumetric calculation. The value is measured on the assembled meter or derived from Quality Control Report
measurement.
•
Transducer Frequency: Select from a drop down menu the specified frequency for a pair of transducers.
•
Fine/Coarse Switch Point: This is the number of points corresponding to the delta T at which the velocity
calculation will switch from Mode 2 to Mode 3.
The formula for converting from velocity to count number is:
32LF
Counts = V × ----------------------------SOS × SOS
Where,
V = velocity (meters/second)
SOS = speed of sound (meters/second)
L = axial length (meters)
F = programmed transducer frequency (hertz)
Note: The meter will be shipped with the correct count number to insure that the meter operates correctly.
44
•
# in Avg: This is the number of parameters averaged together before being reported on average outputs. For the
critical parameters, like velocity and volumetric, it is the number of averaged measurements. This number is
carefully selected by the manufacturer to meet the meter specification as well as optimize the meter
performance.
•
Time delay (Tw): The delay time is a number which includes various delays in the transducers, electronics and
cables. The manufacturer determines the exact Tw number during the zero flow calibration procedure.
•
Zero cutoff: The value below which the velocity reading is forced to zero.
Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.6.1a General (cont.)
Figure 37: General Tab Display
Sentinel™ User’s Manual
45
Chapter 2. Initial Setup
2.6.1b
Fluid
Figure 38 on page 47 shows a typical Fluid tab display:
46
•
Fluid: Choose the fluid from the list box. The system will suggest theoretical soundspeeds. These suggested
soundspeeds can be overwritten by selecting “Other” from the list. Other fluids can be measured by selecting
“Other” and entering the fluid’s calculated soundspeed.
•
C3 Theory: The theoretical soundspeed of the fluid being measured.
•
K Viscosity: The kinematic viscosity of the fluid being measured.
•
Const Press: The pressure of the measured fluid. If analog inputs are used for pressure measurement, this box
will not be editable and will show the device number of the analog input.
•
Base Press: The base pressure used for standard volumetric measurement calculations.
•
Const Temp: The temperature of the measured fluid. If analog inputs are used for temperature measurement,
this box will not be editable and will show the device number of the analog input.
•
Base Temp: The base temperature used for standard volumetric measurement calculations.
Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.6.1b Fluid (cont.)
Figure 38: Fluid Tab Display
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Chapter 2. Initial Setup
2.6.1c
Errors
To set limits for possible errors, see Figure 39 on page 49 and consider the following:
Note: In the event that one of the following errors exceeds its limit, a corresponding error notice, described in
Chapter 4, Troubleshooting, will be displayed by PanaView and Modbus. Also, the alarm relay will change
state and the 4-20mA output and the Frequency output will be able to be programmed to identify the presence
of an error.
48
•
Soundspeed: The soundspeed % Theory is set to cover the range at which the gas soundspeed may vary as a
function of its composition, pressure and temperature. Setting the number too low may cause the meter to get
into an error mode and stop working. Setting the number too high may cause the meter to fail to detect
instrument malfunctions.
•
Signal Strength Limits: The meter can operate in a very wide range of signal strength. The low limit should
be set to allow the Signal to Noise Ratio to be large enough to ensure that the meter will maintain the specified
accuracy. The upper limit needs to be set to ensure that the meter will not be overloaded and the signal be
undetected.
•
Amplitude Limits: The steady state amplitude is 100%. In case of a sudden change in the system gain, it may
take time for the AGC to stabilize the amplitude to 100%. An error will be indicated if the amplitude exceeds
the limits.
•
Velocity: The velocity limits should be set higher than the maximum possible flow.
•
Acceleration: The meter is testing for a change in velocity differential between each set of two consecutive
velocity calculations. In some applications a sharp change in velocity is expected. In that case the meter should
be programmed with a higher value than the default, which is 1.5 m/s.
Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.6.1c Errors (cont.)
Figure 39: Errors Tab Display
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Chapter 2. Initial Setup
2.6.1d
Diagnostics
The diagnostics tab allows the user to display the following real time data, and to record some of the data as well (refer
to Figure 40 on page 51):
•
Flow Velocity: This is the un-averaged, instantaneous velocity.
•
Sound Speed: This is the un-averaged, instantaneous speed of sound.
•
Signal Max: This is the un-averaged instantaneous percent signal relative to the ADC reference.
•
Delta T: This is the un-averaged instantaneous delta between up and down transmit time
•
Delta T Offset: The Delta T Offset is an entry which belongs in the general tab. It is used to compensate for
system zero flow offset.
•
Error: This display indicates the error number in the event that the meter has a error.
•
Mode: There are three different regions at which the meter determines the topology for calculating the transmit
time. Each region is assigned a mode:
Mode 0: Phase mode
Mode 1: 2T to Fine/Course switch point = Chai
Mode 2: Bipolar Envelope
Mode 3: Unipolar Envelope
•
% Error: The percent error indicates that the measurement system is rejecting reading due to error. It will
display the percent error which is proportion to the rejected data.
Up Stream/Down Stream:
50
•
Signal: This is the signal strength in dB. The strength is inversely proportion to the receiver AGC gain level.
The signal strength is between 0 and 100.
•
AGC: The AGC number is the DAC digital input value which controls the receiver gain control.
•
Time: The transmit time is the total as seen from the DSP. It is the sum of: the time between the surface of the
two transducers, and Tw.
•
P#: The P number is a point between 0 and 1024 on the receive window which is a function of the FIFO size.
Sentinel™ User’s Manual
Chapter 2. Initial Setup
2.6.1d Diagnostics (cont.)
Plot:
Note: To access the plot function of PanaView, first set the meter to Program mode.
•
Plot Type: There are 5 different plots which PanaView can display:
FIFO Up - the raw upstream signal
FIFO Down - the raw downstream signal
Env Up - the modulated raw upstream signal
Env Down - the modulated raw downstream signal
Chi 2 - the Chi 2 function, which was calculated by the meter
For more detailed instructions for using the plot function, refer to the PanaView manual (910-211).
Figure 40: Diagnostics Tab Display
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Chapter 2. Initial Setup
2.6.2 Signal Setup Buttons
2.6.2a
Units
PanaView can display and program some parameters in different units based on user preference. The Units button
allows the user to switch between the different units (see Figure 41 below).
Figure 41: Signal Unit Preferences
2.6.2b
Get
All of the programming information is stored in the meter non-destructive memory. PanaView displays may be updated
manually by pressing the Get button.
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Sentinel™ User’s Manual
Chapter 3. Operation
Chapter 3.
3.1
Operation
Introduction
See Chapter 1, Installation, and Chapter 2, Initial Setup, to prepare the Sentinel Flow Measurement System for
operation. When the meter is ready to take measurements, proceed with the instructions in this chapter.
Note: All inputs and outputs of the Sentinel are calibrated at the factory, prior to shipment. If it becomes necessary to
recalibrate any of the inputs and/or outputs, contact GE for assistance.
WARNING! To ensure the safe operation of the Sentinel Flow Measurement System, 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.
3.2
Getting Started
The purpose of this section is to give a brief description of the Sentinel user program and how to use PanaView to view
and enter data.
3.2.1 Powering Up
Because the Sentinel 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 EU Low Voltage Directive (73/23/EEC), 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 meter.
There are two methods for obtaining readings from the Sentinel:
•
The built-in meter LCD Display, which is configured using PanaView
•
The PanaView display on a computer screen
Note: PanaView must be installed in order to obtain flow rate readings from the meter. See the PanaView User
Interface User’s Manual (910-211) for additional information.
Immediately upon power-up both the green PWR light and the red FAULT light in the meter LCD Display begin to glow.
About 15 seconds later the red light stops glowing and the software version display appears. Then, the meter performs
a series of internal checks, which takes about 45 seconds, prior to displaying the flow rate data.
Note: If the Sentinel fails any of the internal checks, try disconnecting the power and then repowering the unit. If the
meter continues to fail any of the internal checks, contact GE for assistance.
After successfully performing the internal checks, the Sentinel begins taking measurements and the software version
display is replaced by a measurement mode display.
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Chapter 3. Operation
3.2.2 Function Verification Procedures
Before continuing with function verification, the flowmeter body must be installed in the pipeline and pressurized with
process gas. Also, the Sentinel's communications and outputs must be wired to the flow computer or plant computer.
Temperature and pressure sensors should be connected to either the Sentinel or the flow computer. The Sentinel must
be powered for at least one minute to allow for self-test and initialization, as follows:
1. Verify that the on-site control computer is not indicating fault condition from the Sentinel if the alarm output is
connected.
2. If the alarm output is not connected, verify that the Sentinel is not reporting any errors by observing its display
and fault indicator (red) light beneath the display.
3. Verify that the flow reading reported by the on-site control computer is reasonable and stable.
If none of the above procedures indicate a problem, the function verification is complete. If a problem is indicated,
proceed to “Installation Troubleshooting Procedures” below.
3.2.3 Installation Troubleshooting Procedures
The purpose of these procedures is to troubleshoot the Sentinel installation, if a fault condition was indicated while
performing the “Function Verification Procedures” in the previous section.
If the Sentinel failed to power on, check the wiring for the presence of power in a safe manner. If the power is wired
correctly and power is present, call GE for assistance.
If the Sentinel is indicating a fault condition on the display or alarm output, refer to Error Codes, Chapter 4, or
Diagnostics, Chapter 5 in this manual.
If the on-site control computer is not receiving flow data and the Sentinel display is not indicating a fault, check the
wiring of the outputs from the Sentinel to the on-site control computer or the flow computer, if used.
Check the programming of the flow computer, if used, and verify that its input and output wiring is correct. If you
cannot resolve the problem, call GE for assistance.
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Chapter 3. Operation
3.2.4 The LCD Display
The components of the LCD display are shown in Figure 42 below, along with a typical mass flow rate readout.
Parameter
Channel #
CH1 MASS
4500
VEL
LB/HR
Flow Rate
Units
Figure 42: A Typical LCD Flow Rate Display
As shown in Figure 42 above, the display screen includes the following information:
•
Channel Number
•
Flow Parameter
•
Units of Measure
•
Flow Rate Value
CAUTION! If the Sentinel is being installed in a hazardous area, be sure to adjust the backlight
brightness and display contrast of the meter LCD window before mounting the system (see
“Adjusting the LCD Contrast and Brightness” on page 24).
Note: Error code messages may appear in the lower right corner of the LCD display. For information about these
error codes and how to respond to them, refer to Chapter 4, Error Codes.
Sentinel™ User’s Manual
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Chapter 3. Operation
3.3
Setting Configuration Parameters
With PanaView installed on your computer (see the PanaView Graphical Interface User’s Manual), you can enter and
record the meter information in a number of different ways. The Meter Browser Menu is illustrated in Figure 43 below.
Note: For reference during PanaView programming, see the PanaView Menu Map in Figure 69 on page 79.
Figure 43: PanaView Meter Browser Menu
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Chapter 3. Operation
3.4
Archiving Site Configuration Files
The meter has the ability to save configuration files to the PC for archiving. The archived files can be loaded into the
active configuration of the instrument as well. This functionality is available using the PanaView interface. To save the
current configuration of the instrument, select the meter in the PanaView Meter Browser. Using the mouse, right click
on the meter and select Site File (see Figure 44 below).
Figure 44: Selecting the Site File Icon
A dialogue box will appear (see Figure 45 below).
Figure 45: Site Selection Dialogue Box
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Chapter 3. Operation
3.4
Archiving Site Configuration Files (cont.)
To save the current meter configuration to the PC, select Create a site file from the meter and then click OK. You will be
prompted for the location and the name of the file in the next dialog. After the file is selected, PanaView will read the
current instrument parameters and write them to the site file.
To load a stored configuration into the meter, click on Load a site file to the meter and then click OK. You must then
locate the file to load. After the file is selected, PanaView will read the configuration file and load the parameters into
the instrument. After the process is complete, you must initialize the instrument in PanaView because its configuration
parameters have changed. See Chapter 2, Initial Setup, for instructions.
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Chapter 3. Operation
3.5
Programming a Fault Alarm/Flow Direction Indicator
The alarm output can be programmed as a fault alarm or a flow direction indicator. Programming is available using the
PanaView interface. To program the relay, expand the meter in the PanaView meter browser and double click on the
Alarm icon (see Figure 46 below).
Figure 46: Selecting the Alarm Icon
A dialogue box will appear (see Figure 47 below). Select whether the relay should be configured as a Fault Alarm or as
a Flow Direction Indicator and click OK.
Figure 47: Alarm/Direction Indicator Dialogue Box
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Chapter 3. Operation
3.6
Configuring and Calibrating the Analog Outputs
Every Sentinel flow meter includes two built-in analog outputs (A and B) at terminal block J1. Before beginning
calibration of these outputs, an ammeter must be connected to the desired analog output. Both the zero-point and the
full-scale values for all of these outputs must be calibrated. After calibrating the outputs, which have a resolution of
5.0 uA (0.03% of full scale), their linearity should be tested.
Note: The zero point of the analog output may be set to either 0 mA or 4 mA. However, the calibration always uses
the 4 mA point, and the meter extrapolates this value to obtain the 0 mA point.
3.6.1 Configuring the Analog Outputs
CAUTION! The load on the analog output must not exceed 600 W. Do not connect the ammeter
directly across the analog output terminals.
Prepare for calibration by inserting an ammeter in series with the load on the desired output. See Figure 3-7 below to
identify the OUT(+) and RTN(-) pins.
Terminal Block J1
4
B
RTN
B
SIG
A
RTN
1
A
SIG
Load
–
+
Ammeter
Figure 48: Ammeter Connection (Output A)
Use the PanaView Recorder Properties to calibrate an Analog Output. To access these menu options, complete the
following steps:
1. Make sure the system is connected to your computer, the system and the computer are turned ON, and
PanaView is up and running.
2. Under File open the New Meter Browser.
3. Expand the drop-down menus until you access the meter and its submenus. Expand the last meter submenu,
Unassigned I/O.
4. Double-click on Recorder 1 or Recorder 2 to bring up the Analog Output properties window. Under the General
tab, select the desired option from the Type drop-down menu (see Figure 49 on page 61).
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Sentinel™ User’s Manual
Chapter 3. Operation
3.6.1 Configuring the Analog Outputs (cont.)
5. Set the Zero and the Span to the desired values. In the Recorder Unit section, select the desired output for
Channel, Sensor/Class and Unit. Click on Apply. The window should look similar to Figure 49 below.
Figure 49: Recorder Properties
6. Next, click on the Errors tab and select the Error Handling schemes for the On Low Error and On High Error cases
from the drop-down menus. Then click on Apply (see Figure 50 below).
Figure 50: Recorder Errors
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Chapter 3. Operation
3.6.2 Calibrating the Analog Outputs
After the configuration in the previous section is complete, proceed as follows to calibrate the analog outputs:
1. Under the Recorder Properties General tab, click on Test.
2. A window similar to Figure 51 below should appear, asking if you want to test the Recorder. Press Yes.
Figure 51: Test Recorder Prompt
3. The screen should now look similar to Figure 52 below. Click on the 4 mA option in the Trim section.
4. Read the current off the digital multimeter and enter the value from the DMM into the Actual mA box for 4 mA.
5. Click on the 20 mA option in the Trim section and enter the value from the DMM into the Actual mA box
for 20 mA.
6. Click on the Apply button. You may now select among the test percentages to verify mA at each percentage.
Note: If you need to calibrate a second time, press the Reset button.
7. Press OK when you are finished calibrating the analog output.
Figure 52: Test/Calibrate Recorder
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Chapter 3. Operation
3.7
Configuring and Testing the Frequency Output
Use the PanaView Unassigned Frequency on I/O menu to calibrate a Frequency Output. To access these menu options,
complete the steps in the following section.
3.7.1 Configuring the Frequency Output
1. Make sure the system is connected to your computer, the system and the computer are turned on, and
PanaView is up and running.
2. Under File open the New Meter Browser.
3. Expand the drop-down menus until you access the meter and its submenus. Expand the last meter submenu,
Unassigned I/O.
4. Double click on Frequency 1 or Frequency 2, whichever is desired, then double-click on Frequency to bring up
the Frequency Properties window.
5. Under the General tab, locate the Input Settings section and enter the desired values for the Min, Max, Zero and
Span parameters.
6. In the Frequency Unit section, select the desired output for Channel, Sensor/Class and Unit from drop-down
menus, and click on Apply. The window should look similar to Figure 53 below.
Figure 53: Frequency Properties
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Chapter 3. Operation
3.7.1 Configuring the Frequency Output (cont.)
7. Next, click on the Errors tab (see Figure 54 below). Select the Error Handling schemes for On Low Error and On
High Error cases from the drop-down menus. Then Click on Apply.
Figure 54: Frequency Errors
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Chapter 3. Operation
3.7.2 Testing the Frequency Output
1. Under the General tab, click on Test.
2. A window similar to Figure 55 below should appear, asking if you want to test the Frequency. Click on Yes.
Figure 55: Test Frequency Prompt
3. The screen should now look similar to Figure 56 below. Use the mouse to move the Test Percentage pointer to
0%. Read the frequency value on the oscilloscope. The oscilloscope should read the Zero value. Next, set the
Test Percentage pointer to 100%. Read the frequency off the oscilloscope. The oscilloscope should read the
Span value.
4. When you are done, press OK in the Test Frequency window and then OK in the Frequency 5 on Channel …
window.
Figure 56: Test Frequency Window
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Chapter 3. Operation
3.8
Calibrating the Sensors
Use the PanaView ADC Configuration menu to calibrate a Sensor option card. To access these menu options, complete
the following steps:
1. Make sure the system is connected to your computer, the system and computer are turned ON, and PanaView is
up and running.
2. Under File open the New Meter Browser.
3. Click on the + sign before each level to open it.
4. Under Unassigned I/O, right click on Unassigned ADC IO 7 and select the desired configuration option (see
Figure 57 below).
Figure 57: Accessing the Sensor Configuration
5. When a display similar to that shown in Figure 58 below appears, make whatever selections and settings are
appropriate under both displays (General and Calibration). Then, click on OK or Apply and the display returns to
the list of selections.
6. To calibrate a second Sensor card, repeat the above process with the second Unassigned ADC IO option.
Figure 58: PanaView Temperature Assignments (two separate displays)
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Chapter 3. Operation
3.9
Entering Temperature and Pressure Constants
Use PanaView to enter fixed values for flow temperature and pressure. To accomplish this, complete the following
steps:
1. Make sure the system is connected to your computer, the system and the computer are turned ON, and
PanaView is up and running.
2. In the File menu, open the New Meter Browser.
3. To enter values for Channel 1, click on the + sign before each level to open it (see Figure 43 on page 56).
4. Double click on the Temp or Pres option and the Temperature or Pressure display appears (see Figure 59
below).
5. Enter the desired values and click on the OK button.
6. To set up temperature and/or pressure constants for Channel 2, repeat the above process with the Channel 2,
Temp or Pres option.
7. When the appropriate temperature and pressure values have been entered, proceed to “Entering Velocity
Constants” on page 68.
Figure 59: PanaView Temperature and Pressure (two separate displays)
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Chapter 3. Operation
3.10 Entering Velocity Constants
Use PanaView to enter fixed values for flow velocity. To accomplish this, complete the following steps:
1. Make sure the system is connected to your computer, the system and the computer are turned on, and
PanaView is up and running.
2. In the File menu, open the New Meter Browser.
3. To enter values for Channel 1, click on the + sign before each level to open it (see Figure 43 on page 56).
4. Click twice on Vel and the Velocity display appears (see Figure 60 below).
5. Enter the desired values and click on the OK button.
Note: The values should be entered in ascending velocity order.
6. To enter values for Channel 2, repeat the above procedure under the Channel 2 directory.
7. When all the appropriate values have been entered, exit the program.
Figure 60: PanaView Velocity Correction Display
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Chapter 3. Operation
3.11 Displaying Measurements
Use PanaView to observe the sensor information on the computer screen in any combination of channels, measurement
modes, and measurement units in either a text format or a graphic format.
To set up the display, complete the following steps:
1. Make sure the system is connected to your computer, the system and the computer are turned ON, and
PanaView is up and running.
2. In the File menu, open a New Meter Browser.
3. Under Output select either Graphing/New or Text Display, whichever is desired.
4. Click on the + sign before each level to open it. See Figure 61 below and Table 9 on page 70 for details on the
available options.
Figure 61: PanaView Output Menu
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Chapter 3. Operation
3.11 Displaying Measurements (cont.)
Table 9: PanaView Flow Measurement Units
Selection
Description
Temp
T_C
T_F
T_K
T_DVM
Pres
PSIg
Bars
mbs
mmHg
Pas
kPas
PSIa
MPas
P_DVM
Vel
Vinst_M/S
Vinst_Ft/S
Vel_M/S
Vel_Ft/S
SndSp
SOS_M/S
SOS_Ft/S
ActMetVol
ACM/S
KACM/S
MACM/S
ACM/M
KACM/M
MACM/M
ACM/H
KACM/H
MACM/H
ACM/D
KACM/D
MACM/D
NrmMetVol with “NCM”
ActEngVol with “ACF”
StdEngVol with “SCF”
+ActMetTot
+ACM
+KACM
70
Temperature
Degrees Celsius
Degrees Fahrenheit
Kelvin
Digital Voltmeter (Diagnostic Mode)
Pressure
Pounds per square inch (general)
Bars
Millibars
Millimeters of Mercury
Pascal, gauge
KiloPascal, gauge
Pounds per square inch (absolute)
MegaPascal
Digital Voltmeter (Diagnostic Mode)
Velocity
Instantaneous velocity in meters/sec.
Instantaneous velocity in feet/second
Average velocity in meters/second
Average velocity in feet/second
Soundspeed
Speed of sound in meters/second
Speed of sound in feet/second
Actual Metric Volume
Actual Metric Volume per second
Kilo Actual Metric Volume per second
Mega Actual Metric Volume per second
Actual Metric Volume per minute
Kilo Actual Metric Volume per minute
Mega Actual Metric Volume per minute
Actual Metric Volume per hour
Kilo Actual Metric Volume per hour
Mega Actual Metric Volume per hour
Actual Metric Volume per day
Kilo Actual Metric Volume per day
Mega Actual Metric Volume per day
Standard Metric Volume (same as above with “NCM”)
Actual English Volume (same as above with “ACF”)
Standard English Volume (same as above with “SCF”)
Actual Metric Total Forward
Actual Metric Total Foward in meters
Actual Metric Total Forward in kilometers
Sentinel™ User’s Manual
Chapter 3. Operation
Table 9: PanaView Flow Measurement Units (cont.)
Selection
Description
+MACM
-ActMetTot
-ACM
-KACM
-MACM
+NrmMetTot
+NCM
+KNCM
+MNCM
-NrmMetTot
-NCM
-KNCM
-MNCM
+ActEngTot
+ACF
+KACF
+MACF
-ActEngTot
-ACF
-KACF
-MACF
+StdEngTot
+SCF
+KSCF
+MSCF
-StdEngTot
-SCF
-KSCF
-MSCF
Comp
Cmp Vel
Cmp SOS
Diag
P Num Up
P Num Dn
Cmp Flow Err
Cmp Comm Err
Percent Err
Meas Mode
Sentinel™ User’s Manual
Actual Metric Total Forward in megameters
Actual Metric Total Reversed
Actual Metric Total Reversed in meters
Actual Metric Total Reversed in kilometers
Actual Metric Total Reversed in megameters
Standard Metric Total Forward
Standard Metric Total Forward in meters
Standard Metric Total Forward in kilometers
Standard Metric Total Forward in megameters
Standard Metric Total Reversed
Standard Metric Total Reversed in meters
Standard Metric Total Reversed in kilometers
Standard Metric Total Reversed in megameters
Actual English Total Forward
Actual English Total Forward in feet
Actual English Total Forward in kilofeet
Actual English Total Forward in megafeet
Actual English Total Reversed
Actual English Total Reversed in feet
Actual English Total Reversed in kilofeet
Actual English Total Reversed in megafeet
Standard English Total Forward
Standard English Total Forward in feet
Standard English Total Forward in kilofeet
Standard English Total Forward in megafeet
Standard English Total Reversed
Standard English Total Reversed in feet
Standard English Total Reversed in kilofeet
Standard English Total Reversed in megafeet
Composite
Composite velocity
Composite soundspeed
Diagnostic Parameters
Signal peaks - upstream flow
Signal Peaks - downstream flow
Composite flow error
Composite common error
Percentage error
Measuring mode
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Chapter 3. Operation
3.11 Displaying Measurements (cont.)
5. Select the channel and the category to be observed.
6. Double click on the measurement(s) desired and, depending on the number of parameters chosen and the
format that was selected in Step 3, a display similar to either that shown in Figure 62 below or Figure 63 on
page 73 will appear
7. After the parameters have been observed and recorded, exit the display and repeat the procedure for any other
required programming.
Figure 62: PanaView Measurements Display in Text Format
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Chapter 3. Operation
3.11 Displaying Measurements (cont.)
Figure 63: PanaView Measurements Display in Graph Format
Note: Upon exiting a display in graph format, a prompt appears reading “Save chart data to log file?” Respond as
desired and exit the display.
For further details on collecting and displaying data see Chapter 6, Data Handling, in the PanaView Manual (910-211).
3.12 Resetting the Totalizers
Periodically, the totalizers will need to be reset to zero. To reset the totalizers, proceed to the next section.
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Chapter 3. Operation
3.12.1 Preparing the Electronics
1. Power down the electronics.
2. Break the lead and wire seal on the front cover, if one was applied for security reasons (see Figure 64 below).
3. Unscrew the cover and set it aside.
Figure 64: Breaking the Seal
4. Identify the notch toward the top left side of the LCD display board, through which the DIP switch can be seen
(see Figure 65 below).
Figure 65: Locating the Dip Switch
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Sentinel™ User’s Manual
Chapter 3. Operation
3.12.1 Preparing the Electronics (cont.)
5. Use a small screwdriver to move the top (#8) switch to the ON (left) position (see Figure 66 below).
6. If the system is not already connected to a PC or laptop computer, use the RS232 (or RS485) terminal on the
rear of the electronics package to make the connection.
7. Power up the electronics.
DIP Switch #8
ON
OFF
Figure 66: Moving DIP Switch #8 to ON
3.12.2 Using PanaView to Clear the Totalizers
Please be aware of the following:
•
Only the PanaView Meter Browser window can be used to reset the totalizers (see Figure 67 on page 76).
•
Each channel has its own totalizer:
•
•
•
Channel 1 (Path 1)
•
Channel 2 (Path 2)
•
Average (average of Paths 1 & 2)
Totalizers are reset under the metric objects:
•
+ActMetTot
•
–ActMetTot
•
+NrmMetTot
•
–NrmMetTot
Resetting the metric totalizers will reset the English totalizers automatically.
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Chapter 3. Operation
3.12.2 Using PanaView to Clear the Totalizers (cont.)
Figure 67: The Meter Browser Window
Proceed to the next page to continue.
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Sentinel™ User’s Manual
Chapter 3. Operation
3.12.2 Using PanaView to Clear the Totalizers (cont.)
1. Click on a totalizer to reset it (+ActMetTot in this example).
2. Right click to bring up Properties.
3. Click on Properties. The current total will be displayed (see Figure 68 below).
4. Click the Reset button. The counter will be reset to 0.
5. Click OK.
6. Repeat the procedure for each totalizer in Channel 1, Channel 2, and Average to reset all totalizers.
Figure 68: Actual Metric Total Fwd on Average
3.12.3 Returning to Operation
1. Verify that all totalizers have been cleared.
2. Power down the electronics.
3. Move the #8 DIP switch to the OFF (right) position.
4. Power up the electronics and verify the operations, including the display board.
5. Reapply a new lead and wire seal, if such security is needed, and reinstall the front cover.
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Chapter 3. Operation
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Sentinel™ User’s Manual
Chapter 3. Operation
Channel 1
New Meter
Browser
(COM 1)
New Meter
Network
(COM 2)
Channel 2
–Difference
Average
+Sum
Alarm - I/O
User 1
User X
General
Calibration
Pres
General
Vel
Reynolds
Correction
Temp.
Test
NrmMetVol
ActEngVol
StdEngVol
+ActMetTot
–ActMetTot
+NumMetTot
–NumMetTot
+ActEngTot
–ActEngTot
+StdEngTot
–StdEngTot
User Tables
Unassigned
Recorders
General
Errors
Frequencies
General
Errors
Value
Value
K-Factor
Vel
Value
Reynolds
Correction K-Factor
Table A
SndSp
SndSp
ActMetVol
Display
Fault Alarm
Flow Direction
Indicator
User Functions
Temp
Meter Logs
Actual Volume in M 3
Normal Volume in M3
Actual Volume in Ft 3
Standard Volume in Ft 3
Total Forward Actual in M 3
Total Reverse Actual in M3
Total Forward Normal in M 3
Total Reverse Normal in M 3
Total Forward Actual in Ft 3
Total Reverse Actual in Ft 3
Total Forward Standard in Ft 3
Total Reverse Standard in Ft 3
ActMetVol
NrmMetVol
ActEngVol
StdEngVol
+ActMetTot
–ActMetTot
+NumMetTot
–NumMetTot
+ActEngTot
–ActEngTot
+StdEngTot
–StdEngTot
Table B
Actual Volume in M 3
Table C
Normal Volume in M3
Table D
Actual Volume in Ft 3
Table E
Standard Volume in Ft 3
Total Forward Actual in M 3
Total Reverse Actual in M3
Total Forward Normal in M 3
Total Reverse Normal in M 3
Total Forward Actual in Ft 3
Box 1
Box 2
Box 3
Box 4
Category
Title
Title
Title
Title
Title
Unassigned
I/O 1
Values
Unassigned
I/O 2
Values
Unassigned
I/O 5
Values
Figure 69: PanaView Meter Browser Menu Map
File
Category
Category
Category
Total Reverse Actual in Ft 3
Total Forward Standard in Ft 3
Total Reverse Standard in Ft 3
Diag
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Chapter 3. Operation
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Chapter 4. Error Codes
Chapter 4.
4.1
Error Codes
Introduction
The ultrasonic flow transmitters are reliable, easy to maintain instruments. When the Sentinel Flow Measurement
System is properly installed and operated, as described in the first three chapters of this manual, the meters provide
accurate flow rate measurements with minimal user intervention. However, if a problem should arise with the
electronics enclosures, the transducers or the flowcell, a built-in error code message system greatly simplifies the
troubleshooting process.
Note: For information on setting up the Sentinel to diagnose errors, see “Errors” on page 48.
All of the possible error code messages are discussed in this chapter, along with the possible causes and the
recommended actions. When an error code is generated, it appears in the LCD display screen as shown in Figure 70
below.
Error Message
CH1 MASS
4500
Err X
LCD Display
Figure 70: Error Message Location
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Chapter 4. Error Codes
4.2
Error Descriptions and Actions
If an error message appears on the meter display screen during operation of the Sentinel, refer to the following list of
error descriptions for instructions on how to proceed.
4.2.1 Err 0: No Error
Problem:
No error condition currently exists.
Cause:
This message appears briefly to confirm that the response to another error message has corrected the
problem.
Action:
No action is required.
4.2.2 Err 1: Low Signal
Problem:
Poor ultrasonic signal strength or the signal exceeds the limits entered in the New Meter Browser setup (see
Chapter 2, Initial Setup).
Cause:
Poor signal strength may be caused by a defective cable, a flowcell problem, a defective transducer or a
problem in the electronics console. A signal that exceeds the programmed limits is probably caused by the
entry of an improper value in the New Meter Browser information setup (see Chapter 2, Initial Setup).
Action:
Using the procedures in Chapter 5, Diagnostics, check the components listed above. Also, check the value
entered into the New Meter Browser information setup (see Chapter 2, Initial Setup).
4.2.3 Err 2: Soundspeed Error
Problem:
The soundspeed exceeds the limits programmed in the New Meter Browser information setup (see Chapter
2, Initial Setup).
Cause:
The error may be caused by incorrect programming, poor flow conditions or poor transducer orientation.
Action:
Compare the measured soundspeed to tabulated nominal values for the fluid being used and correct any
programming errors. Refer to Chapter 5, Diagnostics, to correct any flowcell and/or transducer problems.
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Chapter 4. Error Codes
4.2.4 Err 3: Velocity Range
Problem:
The velocity exceeds the limits programmed in the New Meter Browser information setup (see Chapter 2,
Initial Setup).
Cause:
This error may be caused by the entry of improper programming data or by poor flow conditions and/or
excessive turbulence.
Action:
Make sure the actual flow rate is within the programmed limits. See Chapter 2, Initial Setup for details.
Refer to Chapter 5, Diagnostics, to correct any flowcell and/or transducer problems.
4.2.5 Err 4: Signal Quality
Problem:
The signal quality is outside the limits programmed in the New Meter Browser information setup (see
Chapter 2, Initial Setup).
Cause:
The peak of the upstream or downstream correlation signals has fallen below the correlation peak limit, as
set in the New Meter Browser information setup. This may be caused by a flowcell or electrical problem.
Action:
Check for sources of electrical interference and verify the integrity of the electronics console by
temporarily substituting a test flowcell that is known to be good. Check the transducers and relocate them,
if necessary. See Chapter 5, Diagnostics, for instructions.
4.2.6 Err 5: Amplitude Error
Problem:
The signal amplitude exceeds the limits programmed in the New Meter Browser information setup (see
Chapter 2, Initial Setup).
Cause:
Solid or liquid particulates may be present in the flowcell. Poor coupling for clamp-on transducers.
Action:
Refer to Chapter 5, Diagnostics, to correct any flowcell problems.
4.2.7 Err 6: Cycle Skip, Accel.
Problem:
The acceleration exceeds the limits programmed in the New Meter Browser information setup (see Chapter
2, Initial Setup).
Cause:
This condition is usually caused by poor flow conditions or improper transducer alignment.
Action:
Refer to Chapter 5, Diagnostics, to correct any flowcell and/or transducer problems.
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Chapter 4. Error Codes
4.2.8 Err 7: DSP Signal Error
4.2.9 Err 8: Temp Input Error
Problem:
This message indicates a temperature input error.
Cause:
The temperature exceeds the specified limits for the analog/RTD inputs option card or no input device is
connected.
Action:
Check the temperature transmitter and the connecting cable. Refer to Diagnostics in Chapter 2, Initial
Setup, and recalibrate the analog/RTD inputs option card.
4.2.10 Err 9: Press In Error
Problem:
This message indicates a pressure input error.
Cause:
The pressure exceeds the specified limits for the analog input card, or no input device is connected.
Action:
Check the pressure transmitter and the connecting cable. Refer to “Entering Temperature and Pressure
Constants” on page 67 and calibrate the analog input card.
4.2.11 Err 10: Totalizer Overflow
Problem:
The totalizers are unable to keep up with the total accumulated flow signals.
Cause:
The programmed units/pulse value is too small.
Action:
Select a larger number of units/pulse value.
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Chapter 5. Diagnostics
Chapter 5.
5.1
Diagnostics
Introduction
This chapter explains how to troubleshoot the Sentinel Flow Measurement System if problems arise with the
electronics enclosure, the flowcell, or the transducers. Indications of a possible problem include:
•
Display of an error message on the meter LCD display screen
•
Erratic flow readings
•
Readings of doubtful accuracy, such as readings that are not consistent with readings from another flow
measuring device connected to the same process.
If any of the above conditions occur, proceed with the instructions presented in this chapter.
5.2
Displaying Diagnostic Parameters
The PanaView Instrument Interface software has built-in Diagnostic Parameters to aid in the troubleshooting of
flowcell, transducer and/or electrical problems. To access these parameters, refer to Figure 71 below and Table 9 on
page 70 and complete the following steps:
Figure 71: PanaView Meter Browser Output Menu
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Chapter 5. Diagnostics
5.2
Displaying Diagnostic Parameters (cont.)
1. Make sure the system is connected to your computer, the system and the computer are turned ON, and
PanaView is up and running.
2. In the File menu, open a New Meter Browser.
3. In the Output menu, select either Graphing/New or Text Display.
4. Click on the + sign before each level to 3expand it.
5. Select the desired channel, and click on the + sign before the Diag (Diag on Channel X) option.
6. Double click on one or more of the six parameters and, depending on the number of parameters chosen and the
format selected in Step 3, a display similar to that shown in Figure 72 below or Figure 73 on page 87 will
appear.
Note: The Graphing/New selection will allow only one or two parameters per display (see Figure 73 on page 87).
7. After the parameters have been observed and recorded, exit the display and repeat the procedure for any other
information.
Note: Upon exiting a display in graphical format, a prompt reading “Save chart data to log file?” appears. Respond as
desired and exit the display.
Figure 72: Diagnostic Display in Text Format
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Sentinel™ User’s Manual
Chapter 5. Diagnostics
5.3
Diagnostic Record
The values for the diagnostic parameters, immediately after initial installation of the meter and verification of proper
operation, should be entered in Figure 20 on page 123. These values can then be compared to future values to help
diagnose any future malfunction of the system.
Note: For further details on collecting and displaying data, see Chapter 6, Data Handling the PanaView Graphical
User Interface manual (910-211).
Figure 73: Diagnostic Display in Graphical Format
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87
Chapter 5. Diagnostics
5.4
Flowcell Problems
If preliminary troubleshooting using the Error Codes in Chapter 4 and “Displaying Diagnostic Parameters” on
page 85 indicates a possible flowcell problem, proceed with this section.
Flowcell problems fall into two general categories:
•
Gas problems
•
Pipe problems.
Read the following sections carefully to determine if the problem is indeed related to the flowcell. If the instructions in
this section fail to resolve the problem, contact GE for assistance.
5.4.1 Gas Problems
Most gas-related problems result from a failure to observe the Sentinel Flow Measurement System installation
instructions. Refer to Chapter 1, Installation, to correct any installation problems.
If the physical installation of the system meets the recommended specifications, it is possible that the gas itself may be
preventing accurate flow rate measurements. The gas being measured must meet the following requirements:
88
•
The gas must be homogeneous, single-phase and relatively clean.
Although a low level of entrained particles may have little effect on the operation of the Sentinel system,
excessive amounts of solid (smoke) or liquid (steam) particles will absorb or disperse the ultrasound signals.
This interference with the ultrasound transmissions through the gas will cause inaccurate flow rate
measurements. In addition, temperature gradients in the gas flow may result in erratic or inaccurate flow rate
readings.
•
The gas must not excessively attenuate ultrasound signals.
Some gases (e.g., high-purity carbon dioxide, hydrogen, nitrogen, etc.) readily absorb ultrasound energy. In
such cases, an E1 error code message will appear on the meter display screen to indicate that the ultrasonic
signal strength is insufficient for reliable measurements.
•
The gas soundspeed must not vary excessively.
The Sentinel system will tolerate relatively large changes in the gas soundspeed, as may be caused by
variations in gas composition or temperature. However, such changes must occur slowly. Rapid fluctuations in
the gas soundspeed, to a value that is considerably different from that programmed into the Sentinel, will result
in erratic or inaccurate flow rate readings. Refer to “Displaying Measurements” on page 69, and make sure
that the appropriate soundspeed appears in the soundspeed display.
Sentinel™ User’s Manual
Chapter 5. Diagnostics
5.4.2 Pipe Problems
Pipe-related problems may result either from a failure to observe the installation instructions, as described in Chapter 1,
Installation, or from improper programming of the flowmeter. By far, the most common pipe problems are the
following:
•
The collection of material at the transducer locations.
Accumulated debris at the transducer locations will interfere with transmission of the ultrasound signals. As a
result, accurate flow rate measurements are not possible. Refer to Chapter 1, Installation, for more details on
proper transducer installation.
•
Inaccurate pipe measurements.
The accuracy of the flow rate measurements is no better than the accuracy of the programmed pipe dimensions.
For the Sentinel system, the flowcell dimensions are programmed at the factory prior to shipment and the
correct data is included in the documentation. Check the adjacent pipe for dents, eccentricity, weld deformity,
straightness and other factors that may cause inaccurate readings.
5.5
Transducer Problems
Ultrasonic transducers are rugged, reliable devices. However, they are subject to physical damage from mishandling
and chemical attack. The most common transducer problems are listed below:
•
Leaks:
Leaks may occur around the transducer and/or the flowcell fittings. Repair such leaks immediately. If the
leaking gas is corrosive, carefully check the transducer and cables for damage, after the leak has been repaired.
•
Corrosion Damage:
If the transducer material was not properly chosen for the intended application, the transducers may suffer
corrosion damage. The damage usually occurs either at the electrical connector or on the transducer surface.
Any transducer damaged in this manner must be replaced. Contact GE for information on transducers in
materials suitable for the application.
•
Internal Damage:
An ultrasonic transducer consists of a ceramic crystal bonded to the transducer case. The bond between the
crystal and the case or the crystal itself may be damaged by extreme mechanical shock and/or temperature
extremes. Also, the internal wiring can be corroded or shorted if contaminants enter the transducer housing.
•
Physical Damage:
Transducers may be physically damaged by dropping them onto a hard surface or striking them against another
object. The transducer connector is the most fragile part and is the one most subject to damage. Minor damage
may be repaired by carefully bending the connector back into shape. If the connector cannot be repaired, the
transducer must be replaced.
Note: Transducers must be replaced in pairs. Refer to Chapter 6, Transducer Replacement, and Chapter 2, Initial
Setup, to program the replacement transducer data into the meter.
If the instructions in this section fail to resolve the problem, contact GE for assistance.
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Chapter 5. Diagnostics
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Sentinel™ User’s Manual
Chapter 6. Transducer Replacement
Chapter 6.
6.1
Transducer Replacement
Introduction
WARNING! Prior to performing any maintenance procedures, be sure to disconnect the main
power from the unit.
WARNING! If the Sentinel is installed in a hazardous environment, the electronics enclosure must
be moved to a safe area prior to removing the covers.
Note: For compliance with the EU 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 meter.
IMPORTANT: Keep a detailed record of all service performed on the Sentinel in Appendix B, Service Record. This
service history may prove very helpful in diagnosing any future problems.
WARNING! Installation and removal of transducers should be performed only if the area is known
to be non-hazardous.
6.2
T11 Transducer Construction
Each T11 transducer assembly (see Figure 74 below) consists of the following components:
•
A metallic body
•
A flange that is an integral part of the body
•
A transducer head
•
A BNC style connector for use in connecting the transducer to the flowmeter
•
An integral 1/2” NPT male thread on the BNC connector end for mounting the junction box.
Transducer Head
Metallic Body
1/2" NPT Thread
Flange
BNC Connector
Figure 74: General T11 Transducer Assembly
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Chapter 6. Transducer Replacement
6.3
Replacing T11 Transducers in a Depressurized Pipe
If T11 transducer replacement is required and the pipeline is shut down and depressurized or if the meter is removed,
follow the procedure in this section.
Note: To replace T11 transducers in a pressurized pipe, see “Replacing T11 Transducers in a Pressurized Pipe” on
page 96.
WARNING! Follow all applicable safety codes while performing the following procedure.
WARNING! Make sure the power is disconnected before performing the following steps.
WARNING! Make sure the process line is shut down before removing transducers according to this
procedure. Serious injury or death may occur if the transducers are removed from a live process line.
The following equipment is required to complete the removal and re-installation of T11 transducers in a depressurized
pipe line:
•
Torque wrench
•
Spray lubricant
•
Anti-seize lubricant
6.3.1 Removing the Old Transducer from a Depressurized Pipe
To remove the old transducer, complete the following steps:
1. Remove the cover from the T11 conduit box, disconnect the BNC connector from the transducer, and remove
the conduit box.
2. Remove the four bolts from the transducer sensor flange with a 9/16” socket wrench.
IMPORTANT: Inspect the bolts to verify that they are not damaged. If one or more bolts need to be replaced, use only
approved 3/8-16 UNC x 1.5” SAE class 8 bolts.
3. Remove the sensor flange from the transducer.
4. Remove the transducer from the holder.
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Chapter 6. Transducer Replacement
6.3.2 T11 Transducer Installation Components
See Table 10 below and Figure 75 below for the components required to install the new transducer.
No.*
Table 10: Components at each Transducer Location
Part Number Description
Qty.
1
577-004-00
Sensor Holder
1
2
551-1135
Sensor Flange
1
3
410-538
O-Ring, Size 210, Viton
2
4
410-539
O-Ring, Size 213, Viton
1
5
412-1032-24
Screw, Cap Hex 3/8-16 x 1-1/2
4
6
412-148
Washer, Lock Split 3/8”
4
7
O-Ring-Safe Lubricant
A/R
8
Anti-Seize Lubricant
A/R
*Component numbers correspond to item numbers in Figure 75 below.
5
6
4 places
8
2
T11 Transducer
4 places
7
4
7
3
1
2 places
Figure 75: T11 Installation Components for a Depressurized Pipe
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Chapter 6. Transducer Replacement
6.3.3 Installing a New Transducer in a Depressurized Pipe
IMPORTANT: The following procedures should be used only in situations where the process line is shut down.
IMPORTANT: Do not reuse the old o-rings. Replace them with new o-rings, as specified in Table 10 on page 93.
Use the components described in the previous section, to install the new transducers as follows:
1. Lubricate and install three new o-rings in the T11 holder (see Figure 76 below and Table 10 on page 93).
Note: The item numbers shown in Figure 76 below correspond to those listed in Table 10 on page 93.
Figure 76: Holder Cross-Section - O-Ring Placement
2. Inspect the sealing surfaces of the transducer mount and the T11 transducer that is to be inserted into the meter
body to insure there is no damage to either surface.
3. Lubricate the shaft of the transducer with a spray lubricant that is safe for the o-rings.
4. Carefully push the transducer into the holder until the flange contacts the face o-ring seal, being careful not to
disturb the o-rings.
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Chapter 6. Transducer Replacement
6.3.3 Installing a New Transducer in a Depressurized Pipe (cont.)
5. Mount the sensor flange over the top of the transducer, shoulder side down, and hand tighten the four upper
bolts.
6. Using a torque wrench, tighten the four upper bolts to 15 ft-lb in the order shown in Figure 77 below. Then,
tighten the four bolts to 30 ft-lb in the same order shown in Figure 77 below.
7. Thread the flameproof junction box onto the end of the transducer with the BNC connector. Ensure that at least
five full threads are engaged.
8. Connect the cable from the meter to the transducer within the junction box and install the junction box cover.
SHOCK HAZARD! Do not contact the transducer center conductor.
9. Repeat the above steps for any additional T11 transducers that are required to complete the installation.
1
3
4
2
Figure 77: Holder Top View - Bolt Tightening Order
Sentinel™ User’s Manual
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Chapter 6. Transducer Replacement
6.4
Replacing T11 Transducers in a Pressurized Pipe
If T11 transducer replacement is required and the pipeline cannot be depressurized, follow the procedure in this section.
IMPORTANT: The following procedure is used only in situations where the process line cannot be shut down.
Note: To replace T11 transducers in a depressurized pipe, see “Replacing T11 Transducers in a Depressurized Pipe”
on page 92.
WARNING! Follow all applicable safety codes while performing the following procedure.
WARNING! Make sure the power is disconnected before performing the following steps.
WARNING! During the installation and removal of a transducer, the indicated danger zone areas
are potential pinch points (see Figure 83 on page 99). Attention is required to ensure safe use.
WARNING! Because of the serious nature of replacing transducers in a pressurized pipe, it is
recommended that the following procedures be handled by an experienced field service individual.
The following equipment is required to complete the removal and re-installation of T11 transducers in a pressurized
pipe line:
•
Torque wrench, with 9/16” and 5/8” sockets
•
Spray lubricant
•
Anti-seize lubricant
•
Sentinel T11 insertion mechanism kit
IMPORTANT: Removal and re-installation must be done as a single process. Do not leave the pipeline with no
transducers installed for an extended period of time.
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Chapter 6. Transducer Replacement
6.4.1 Removing the Old Transducer from a Pressurized Pipe
To remove an existing transducer from a pressurized pipe, complete the following steps:
1. Remove the cover from the T11 transducer conduit box, disconnect the BNC connector from the transducer,
and remove the conduit box.
2. Apply anti-seize lubricant to the transducer thread and hand-tighten the transducer pusher onto the transducer
until it is firmly in place (see Figure 78 below).
Pusher
T11 Transducer
Ball Valve
(open)
Figure 78: Transducer Pusher Installation
3. Apply anti-seize lubricant to the insertion mechanism threads (see Figure 79 below).
Apply antiseize
to threads here.
Figure 79: Insertion Mechanism - Anti-seize Application
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Chapter 6. Transducer Replacement
6.4.1 Removing the Old Transducer from a Pressurized Pipe (cont.)
4. Thread the insertion mechanism onto the meter body holder, then connect a hydraulic pump to the insertion
mechanism (see Figure 80 and Figure 81 below).
Figure 80: Installing the Insertion Mechanism
Figure 81: Connecting the Hydraulic Pump
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Chapter 6. Transducer Replacement
6.4.1 Removing the Old Transducer from a Pressurized Pipe (cont.)
5. Pressurize the hydraulic pump to 1500 psi (see Figure 82 below).
Figure 82: Pressurizing the Hydraulic Pump
6. Remove the four bolts from the transducer flange with a 9/16” socket wrench (see Figure 83 below).
IMPORTANT: Inspect the bolts to verify that they are not damaged. If one or more bolts need to be replaced, use only
approved 3/8-16 UNC x 1.5" SAE class 8 bolts.
Remove
4 bolts.
Danger Zone!
Keep hands clear as
much as is practical.
Figure 83: Transducer Flange Bolt Removal
WARNING! During the installation and removal of a transducer, the indicated danger zone areas
are potential pinch points (see Figure 83 above). Attention is required to ensure safe use.
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Chapter 6. Transducer Replacement
6.4.1 Removing the Old Transducer from a Pressurized Pipe (cont.)
7. Using the hydraulic pump valve, slowly release pressure from the hydraulic ram until the transducer has
retracted to the positive stop in the mechanism (see Figure 84 below).
Positive Stop
Transducer
Retracted
Danger Zone!
Keep hands clear as
much as is practical.
Ball Valve
(closed)
Relief Valve
Figure 84: Transducer Retracted
8. Close the ball valve and secure it in the closed position. Lock the ball valve in place using an appropriate LOTO
(lock-out, tag-out) device and tags.
9. Open the pressure relief valve to release the pressure of any gas trapped in the holder, then close the pressure
relief valve and torque it to 15 ft-lb.
10. Disconnect the hydraulic pump and remove the insertion mechanism.
11. Remove the T11 transducer assembly from the pipe and then remove the pusher and the 4-bolt sensor flange
from the transducer.
The T11 transducer removal procedure is now complete.
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Chapter 6. Transducer Replacement
6.4.2 T11 Transducer Installation Components
See Table 11 below and Figure 85 below for the components required to install the new transducer.
No.*
Table 11: Components at each Transducer Location
Part Number
Description
Qty.
1
577-004-00
Sensor Holder
1
2
551-1135
Sensor Flange
1
3
410-538
O-Ring, size 210 Viton
2
4
410-539
O-Ring, size 213 Viton
1
5
412-1032-24
Screw, Cap Hex 3/8-16 x 1-1/2
4
6
412-148
Washer, Lock Split 3/8”
4
7
O-Ring-Safe Lubricant
A/R
8
Anti-Seize Lubricant
A/R
*Component numbers correspond to item numbers in Figure 85 below.
5
6
4 places
2
T11 Transducer
8
4 places
7
4
7
3
1
2 places
Figure 85: T11 Installation Components for a Pressurized Pipe
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Chapter 6. Transducer Replacement
6.4.3 Installing a New Transducer in a Pressurized Pipe
IMPORTANT: The following procedures should be used only in situations where the process line is not shut down.
IMPORTANT: Do not reuse the old o-rings. Replace them with new o-rings, as specified in Table 11 on page 101.
Use the components described in the previous section, to install the new transducers as follows:
1. Lubricate and install three new o-rings in the T11 holder (see Figure 86 below and Table 11 on page 101).
Note: The item numbers shown in Figure 76 below correspond to those listed in Table 11 on page 101.
Figure 86: Holder Cross-Section - O-Ring Placement
2. Inspect the sealing surfaces of the sensor holder and the T11 transducer that is to be inserted into the meter
body to verify that there is no damage to either surface.
3. Apply anti-seize lubricant to the new T11 transducer NPT threads, then assemble a T11 pusher onto the new
transducer (see Figure 87 on page 103).
4. Lubricate the shaft of the transducer with spray lubricant that is safe fir the o-rings. Then, insert the transducer
into the meter body holder, while carefully pressing the transducer head past the radial o-rings (see Figure 86
above and Figure 87 on page 103).
5. While keeping the pump valve open, thread the insertion mechanism onto the holder and connect the hydraulic
pump (see Figure 80 on page 98).
6. Slide the T11 transducer back to the positive stop of the insertion mechanism (see Figure 84 on page 100).
Verify that the pressure relief valve is closed and torqued to 15 ft-lb.
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Chapter 6. Transducer Replacement
6.4.3 Installing a New Transducer in a Pressurized Pipe (cont.)
Pusher
Transducer Threads
Flange
Metallic Body
Transducer Head
Figure 87: T11 Transducer and Pusher
7. While standing clear of the transducer, open the ball valve on the meter body holder.
8. Close the hydraulic pump valve. Pump the hydraulic ram up to 1500 psi to push the transducer into the meter
body and hold it in place.
9. Align the flange holes of sensor flange with the tapped holes in the holder. Apply anti-seize lubricant to the
flange bolts, install 3/8” lock washers and loosely bolt the flange to the holder. Using a torque wrench, tighten
the four bolts to 15 ft-lb in the order shown in Figure 77 on page 95. Then, tighten the four bolts to 30 ft-lb in
the same order shown in Figure 77 on page 95.
10. Release pressure from the hydraulic ram, remove the insertion mechanism, and remove the transducer pusher.
11. Thread the flameproof junction box onto the end of the transducer with the BNC connector. Ensure that at least
five full threads are engaged.
12. Connect the cable from the meter to the transducer within the junction box and install the junction box cover.
SHOCK HAZARD! Do not contact the transducer center conductor.
13. Repeat the above steps for any additional T11 transducers that are required to complete the installation.
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Chapter 6. Transducer Replacement
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Sentinel™ User’s Manual
Chapter 7. Specifications
Chapter 7.
7.1
Specifications
System Specifications
7.1.1 Operating Gas
Relative Density
Minimum: 0.554
Maximum: 0.87
Carbon Dioxide Level
Maximum: 10%
Pressure
Minimum: 115 psig (8 Bar)
Maximum: 1480 psig (100 Bar)
Temperature
Minimum: –22°F (–30°C)
Maximum: +140°F (+60°)C
7.1.2 Ambient Temperature
Operating
Minimum: –40°F (–40°C)
Maximum: +140°F (+60°C)
Non-Operating
Minimum: –40°F (–40°C)
Maximum: +140°F (+60°C)
7.1.3 Meter Nominal Accuracy
System Setup
Upstream - 5 diameters of straight pipe
Downstream - 5 diameters of straight pipe
Maximum Error (without flow calibration)
±0.5% between 0.1 Qmax and Qmax
±1.0% between Qmin and 0.1 Qmax
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Chapter 7. Specifications
7.1.3 Meter Nominal Accuracy (cont.)
Repeatability
±0.2% between 0.1 Qmax and Qmax
±0.4% between Qmin and 0.1 Qmax
Resolution
0.003 ft/s (0.001 m/s)
Velocity Sampling Interval
0.2 sec
Maximum Peak-to-Peak Error
0.4% between 0.1Qmax and Qmax
Zero-Flow Reading
< 0.007 ft/s (2.13 mm/s) for each acoustic path
< 0.01 ft/s (3.05 mm/s) composite for all paths
Error due to upstream disturbances
±0.3% in addition to nominal error
Note: Accuracy can be improved with High Pressure NG flow calibration
7.1.4 Flow Velocity Range
For pipe size 4" to 10” (15 cm to 25 cm)
Maximum actual measurable velocity: ±118 ft/s (±36 m/s)
Minimum actual measurable velocity: ±2.4 ft/s (±0.72 m/s)
Transitional flow velocity: 11.8 ft/s (3.6 m/s)
For pipe size 12" to 24" (30 cm to 61 cm)
Maximum actual measurable velocity: ±88.6 ft/s (±27 m/s)
Minimum actual measurable velocity: ±1.48 ft/s (±0.45 m/s)
Transitional flow velocity: 8.86 ft/s (2.7 m/s)
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Chapter 7. Specifications
7.2
Electronics Specifications
Approvals
FM/CSA Class I, Div. 1, Groups B, C & D
II 2 G EEx d IIC T6 (Flameproof)
CE Mark Compliance
Compliance with AGA Report No. 9
Enclosure
Epoxy-Coated Aluminum (Standard, NEMA 7/4X)
Power
AC Voltage: 95 – 240VAC ±10%, 50 – 60Hz ±2%
DC Voltage: 17 – 32VDC ±10% (use only Class 2 rated power supplies)
Maximum Power Consumption: 20W
Display
2 Lines, 16 Character Backlit Display
Communications
Bidirectional RS485 or RS232 Link to PanaView Software
Two 0/4 to 20mA isolated outputs, 600Ω maximum load
One frequency (HF) output, optically isolated, from DC to 10 kHz maximum
One hermetically sealed Form C alarm relay that can be applied to indicate flow direction or fault
Two isolated 4 to 20mA inputs and 24V loop power for pressure and temperature
Optional two HF outputs and two alarm outputs or one HF output and 4 to 20mA inputs
One RS485 Modbus digital output correspond to the following map (see Modbus Map on page 7-4)
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Chapter 7. Specifications
7.2
Electronics Specifications (cont.)
Modbus Map
The IGM878 Flow Transmitter, when equipped with the optional Modbus output card, can transmit flow
data and diagnostic information to a flow computer or SCADA, serially, using a Gould-type RTU protocol.
For security and audit-trail purposes, the unit must be programmed through the PanaView interface. This
means that only the Modbus function command 3 (read multiple registers), is valid.
Communication parameters: 9600, n, 8, 1
The format for the data exchange is as follows:
•
The send command (initiated by host flow computer or controller) is of the form:
<time delimiter> <Addr> <3> <First Register MSB>
<First Register LSB> <Register Count MSB>
<Register Count LSB> <CRC Low> <CRC High> <time delimiter>
•
The response (initiated by host flow computer or controller) is of the form:
[time delimiter] <Addr> <3> <Byte count> < Data ……… >
<CRC Low> <CRC High> <time delimiter>
The format for the returned data types is as follows:
Integer
Table 12: Data Type Formats
Integer (I)
1 Register
Floating Point
Single Precision (FP)
2 Registers
Double Precision
Double Precision (DP)
4 Registers
Table 13 on page 109 is the data map for the IGM878 and Sentinel. The refresh rate indicates how often
the central controller updates the memory map, available using the ModBus port. The most time-critical
information is stored at the top of the register. This limits how deep the user has to go into the resister stack
to gather the real-time information. All values are IEEE format MSB first (big-endian).
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Chapter 7. Specifications
7.2
Electronics Specifications (cont.)
Modbus Map (cont.)
Reg. Parameter
Table 13: Modbus Data Map
Type Default
Unit
Refresh
1
Actual Volumetric Flow
FP
0
am3/hr
1s
3
Soundspeed
FP
0
m/s
1s
5
Measurement Status
I
0
6
Area Average Velocity
FP
0
m/s
1s
8
Normal Volumetric Flow
FP
0
sm3/hr
1s
10
Actual Volume Forward Total
DP
0
am3
2s
14
Actual Volume Reverse Total
DP
0
am3
2s
18
Normal Volume Forward Total
DP
0
sm3
2s
22
Normal Volume Reverse Total
DP
0
sm3
2s
26
Mass Flow
FP
0
kg/hr
2s*
28
Forward Mass Total
FP
0
kg
2s*
30
Reverse Mass Total
FP
0
kg
2s*
32
Energy Flow
FP
0
J/hr
5s*
34
Forward Energy Total
FP
0
J
5s*
36
Reverse Energy Total
FP
0
J
5s*
38
Pressure
FP
105
Pa
10s/Fixed
40
Temperature
FP
20
C
10s/Fixed
42
Super Compressibility Factor x 1000
I
1000
43
Density x 1000
I
1000
lb/ft3
10s/Fixed
44
Kinematic Viscosity x 108
I
1000
m2/s
10s/Fixed*
45
Heating Value
I
25000
kJ/m3
10s/Fixed*
46
Path A Velocity
I
0
m/s x 1000
10s
47
Path A Sound Speed
I
0
m/s x 10
10s
48
Path A % Readings in Error
I
0
10s
49
Path A Last Error
I
0
10s*
50
Path B Velocity
I
0
m/s x 1000
10s
51
Path B Sound Speed
I
0
m/s x 10
10s
52
Path B % Readings in Error
I
0
10s
53
Path B Last Error
I
0
10s*
54
Path C Velocity
I
0
m/s x 1000
10s
55
Path C Sound Speed
I
0
m/s x 10
10s
Sentinel™ User’s Manual
1s
10s/Fixed
109
Chapter 7. Specifications
Reg. Parameter
Table 13: Modbus Data Map (cont.)
Type Default
Unit
Refresh
56
Path C % Readings in Error
I
0
10s
57
Path C Last Error
I
0
10s*
58
Path D Velocity
I
0
m/s x 1000
10s
59
Path D Soundspeed
I
0
m/s x 10
10s
60
Path D % Readings in Error
I
0
10s
61
Path D Last Error
I
0
10s*
62
Path E Velocity
I
0
m/s x 1000
10s
63
Path E Sound Speed
I
0
m/s x 10
10s
64
Path E % Readings in Error
I
0
10s
65
Path E Last Error
I
0
10s*
66
Path F Velocity
I
0
m/s x 1000
10s
67
Path F Sound Speed
I
0
m/s x 10
10s
68
Path F % Readings in Error
I
0
10s
69
Path F Last Error
I
0
10s*
70
Internal Update Rate
I
10
Hz
On Init.
71
Sound Speed Low Limit
I
300
m/s
On Init.
72
Sound Speed High Limit
I
500
m/s
On Init.
73
Velocity High Limit
I
40
m/s
On Init.
74
Velocity Low Limit
I
–40
m/s
On Init.
75
Signal Strength High Limit
I
100
dB
On Init.
76
Signal Strength Low Limit
I
20
dB
On Init.
77
Amplitude High Limit
I
95
On Init.
78
Amplitude Low Limit
I
35
On Init.
79
Number in Average
I
32
On Init.
80
Software Version
I
(2 ASCII)
On Init.
81
Checksum
I
82
Number of Paths
I
4
On Init.
83
Modbus Address
I
32
On Init.
On Init.
*Not available at this time.
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Sentinel™ User’s Manual
Chapter 7. Specifications
7.3
Environmental Specifications
7.3.1 Operating Temperature
Minimum
–40°F (–40°C)
Maximum
+140°F (+60°C)
7.3.2 Random Vibration
Frequency Range
10-150 Hz
Total RMS Level
5.25 ft/s2 (1.6 m/s2)
ASD Level 10-20Hz
0.157 ft/s2 (0.048 m/s2)
ASD Level 20-150Hz
-3dB/octave
Number of Axes
3
Duration
2 minutes or longer per axis
7.3.3 Sinusoidal Vibration
Frequency Range
10-150 Hz
Total RMS Level
6.56 ft/s2 (2 m/s2)
Number of Axes
3
Duration
20 cycles per axis
Sentinel™ User’s Manual
111
Chapter 7. Specifications
7.3.4 Mechanical Shock
Free Fall Height
1 inch (25.4 mm)
7.3.5 Power Voltage Variation
Mains Voltage
Nominal mains voltage = 10%
Mains Frequency (AC version)
50 Hz or 60 Hz ±2%
7.3.6 Short Time Power Reduction
Reduction
100% during 10ms
50% during 20ms
Repeated
10 times
Interval
10 seconds
7.3.7 Bursts (Transients)
Spike Characteristics
Double exponential waveform
Peak Value
500 V
Rise Time
5 ns
Half Amplitude Duration
50 ns
Burst Length
15 ms
Burst Period (Repetition Time Interval)
300 ms
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Sentinel™ User’s Manual
Chapter 7. Specifications
7.3.8 Electrostatic Discharge
Exposure
10 times
Time Interval
10 seconds
Test Voltage direct contact
6 kV
Test Voltage Spark
8 kV
7.3.9 Electromagnetic Susceptibility
Frequency Range
0.1 to 500 MHz
Field Strength
3.05 Volts/ft (10 Volts/m)
Sentinel™ User’s Manual
113
Chapter 7. Specifications
7.4
T11 Transducer Specifications
Frequency
100kHz ±20% or 200kHz ±20%
Bandwidth
15% (100 kHz) or 25% (200 kHz)
Ambient Temperature
–22°F to 140°F (–30°C to 60°C)
Chemical Exposure
Continuous natural gas
HiPot Test
2121 VDC (“+” to “–”, “+” to case and “–” to case)
Transducer Length
12 inches (30.5 cm)
Critical Dimension
9 inches (22.9 cm)
Connector
Isolated straight BNC
Pressure
115 to 2175 psi (8 to 150 bar)
Depressurization Concern
Not applicable
Corrosion Resistance
Non-corrosive metal face
Construction
All Titanium
Certifications
II 26 EEx d IIC T6 (Flameproof)
CSA/CUS Class I, Div.1, Groups B, C & D
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Sentinel™ User’s Manual
Chapter 7. Specifications
7.5
Spoolpiece Specifications
Body Design Code
U.S. Dept. of Transportation Regulation 49 C.F.R. Part 192, Transportation of Natural and Other Gas by
Pipeline: Minimum Federal Safety Standards
MSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings – Socket Welding, Threaded and Butt
Welding Ends –(Burst Test Guidelines)
ASME B36.10M Welded and Seamless Wrought Steel Pipe
Flange Design Code
ASME B16.5 Pipe Flanges and Flanged Fittings
Design Temperature
–22°F to 140°F (–30°C to 60°C) for meter body only
Operating Pressure
740 psig or 50 Bar for ANSI 300
1480 psig or 100 Bar for ANSI 600
Exterior Coating System
Sandblast per SPCC Spec SP10
Inorganic zinc silicate primer (3 mils DFT)
Epoxy High-Build (4-6 mils DFT)
System Safety Analysis
REAP 10 GE Power Systems Product Safety (PHA and Ha2Op)
Internal Coating
Water Soluble Rust Preventative
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115
Chapter 7. Specifications
7.5
Spoolpiece Specifications (cont.)
Table 14: Spoolpiece Dimensions
Nominal Pipe
Meter Body Length
Size
ANSI Flange Weight
Flange Face-to-Face
6”
300 lb (112 kg)
Bore Schedule
Actual ID
40
6.065”
80
5.761”
40
7.981”
80
7.625”
40
10.020”
80
9.562”
40
11.938”
80
11.374”
40
13.124”
80
12.500”
40
15.000”
80
14.312”
40
16.876”
80
16.124”
40
18.812”
80
17.938”
40
22.624”
80
21.562”
45” (1143mm)
600 lb (224 kg)
8”
300 lb (112) kg
48” (1219mm)
600 lb (224 kg)
10”
300 lb (112 kg)
52” (1321mm)
600 lb (224 kg)
12”
300 lb (112) kg
56” (1422mm)
600 lb (224 kg)
14”
300 lb (112 kg)
58” (1473mm)
600 lb (224 kg)
16”
300 lb (112) kg
60” (1524mm)
600 lb (224 kg)
18”
300 lb (112 kg)
63” (1600mm)
600 lb (224 kg)
20”
300 lb (112) kg
67” (1702mm)
600 lb (224 kg)
24”
300 lb (112 kg)
74” (1880mm)
600 lb (224 kg)
Component
Table 15: Spoolpiece Materials of Construction
Materials
Pipe Flanges and Fittings
Carbon Steel (A105 or A350 LF2*)
Pipe Sections
Carbon Steel (A106 Gr. B or A333 Gr. 6*)
Transducer Holder Components
Stainless Steel 316/316L (A276)
T11 Transducer
Titanium CP Gr. 2 (B348/B381)
*A350 LF2 and A333 Gr. 6 are used for low temperature service and are specified by the customer.
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Sentinel™ User’s Manual
Chapter 7. Specifications
7.6
Sentinel Ordering Information
Table 16 below and Table 17 on page 118 show how the Sentinel Flow Measurement System part numbers are
configured from the options specified.
7.6.1 Spoolpiece Ordering Information
The information below shows how the Spoolpiece part number is configured from the options specified.
A
B
Sentinel
LTR
B
C
D
E
F
G
H
I
-
CATEGORY
-
C
-
D
-
E
-
F
-
G
-
-
1
-
H
-
I
-
Table 16: Spoolpiece Ordering Information
OPTIONS
6 = 6.0” (152.4) ID x 45.0” (1143.0) long*
8 = 8.0” (203.2) ID x 48.0” (1219.2) long*
10 = 10.0” (254.0) ID x 52.0” (1320.8) long*
12 = 12.0” (304.8) ID x 56.0” (1422.4) long*
14 = 14.0” (355.6) ID x 58.0” (1473.2) long*
16 = 16.0” (406.4) ID x 60.0” (1524.0) long*
18 = 18.0” (457.2) ID x 63.0” (1600.2) long*
20 = 20.0” (508.0) ID x 67.0” (1701.8) long*
24 = 24.0” (609.6) ID x 74.0” (1879.6) long*
Uni/Bi-Directional 0 = No Upstream Pipe
1 = One Upstream Pipe
2 = Two Upstream Pipes
Flange Class and 30 = 300 Class Sch. 40
Pipe Bore
60 = 600 Class Sch. 80
Materials
1 = Pipe: ASTM A106 GR.B; Flange and Fitting: ASTM A105
2 = Pipe: ASTM A333 GR.6; Flange and Fitting: ASTM A350 LF2
Valve
0 = None
1 = Single Valve
Transducer Type
1 = T11
Transducer
1 = Titanium CP GR.2
Material
2 = 316SS
Transducer
1 = 100 kHz
Frequency
2 = 200 kHz
Nominal Pipe Size
* Spoolpiece body length equals raised face to raised face.
Sentinel™ User’s Manual
117
Chapter 7. Specifications
7.6.2 Electronics Ordering Information
The information in Table 17 below shows how the Electronics part number is configured from the options specified.
A
IGM878
LTR
CATEGORY
B
Power
C
Comm
D
Frequency
B
C
D
-
Table 17: Electronics Ordering Information
OPTIONS
1 = 85 – 264 VAC
2 = 15 – 36 VDC
1 = RS232
2 = RS485
1 = Broadband (100 kHz – 200 kHz)
2 = 100 kHz Narrow Band
3 = 200 kHz Narrow Band
7.6.3 Standard Options
Channels
Dual
Display
16 x 2
I/O
one Frequency output
one Alarm output
two 4–20mA inputs
Package
Epoxy-Coated Aluminum
Additional Comm
Modbus
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Sentinel™ User’s Manual
Appendix A. CE Mark Compliance
Appendix A. CE Mark Compliance
A.1 Introduction
For CE Mark compliance, the Sentinel Flow Measurement System must be wired in accordance with the instructions in
this appendix.
IMPORTANT: CE Mark compliance is required for all units intended for use in EU countries.
A.2 Wiring
The Sentinel must be wired with the recommended cable, and all connections must be properly shielded and grounded.
Refer to Table 18 below for the specific requirements.
Connection
Input/Output
Power
Table 18: Wiring Modifications
Cable Type
Termination Modification
22 AWG shielded
(e.g., Baystate #78-1197)
Terminate shield
to chassis ground.
Armored conduit
None - grounded
using a conduit fitting.
14 AWG, 3 conductor, shielded
(e.g., Belden #19364)
Terminate shield
to chassis ground.
Armored Conduit
None - grounded
using a conduit fitting.
Note: If the Sentinel is wired as described in this appendix, the system will comply with the EMC Directive.
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Appendix B. Data Records
Appendix B. Data Records
B.1 Service Record
Whenever any service procedure is performed on the Sentinel Flow Measurement System, the details of the service
should be recorded in this appendix. An accurate service history of the system can prove very helpful in
troubleshooting any future problems.
Record complete and detailed service data for the Sentinel in Table 19 below. Make additional copies of the table as
needed.
Date
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Table 19: Service Record
Description of Service
Performed By
121
Appendix B. Data Records
Date
122
Table 19: Service Record (cont.)
Description of Service
Performed By
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Appendix B. Data Records
B.2 Diagnostic Parameters
After a successful initial installation of the Sentinel system and whenever any system malfunction is noticed, the values
for the diagnostic parameters should be entered in Table 20 below. For a definition of terms see Table 9 on page 70.
Parameter
Initial
Table 20: Diagnostic Parameters
Current
Current
Current
Current
P Num Up
P Num Dn
Cmp Flow Err
Cmp Comm Err
Percent Err
Meas Mode
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Appendix B. Data Records
B.3 Option Cards Installed
Whenever an option card is installed or changed in the flow transmitter, record the type of card and any additional setup
information in the appropriate row of Table 21 below.
Slot #
Table 21: Slot 1 and 2 Cards Installed
Type of Card
Additional Setup Information
1
2
124
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Appendix C. Brazilian INMETRO Approval
Appendix C. Brazilian INMETRO Approval
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Appendix D. NMI Nederlands Meetinstituut Approval
Appendix D. NMI Nederlands Meetinstituut Approval
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138
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Appendix E. Romanian Bureau of Legal Metrology Approval
Appendix E. Romanian Bureau of Legal Metrology Approval
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Sentinel™ User’s Manual
Index
A
Acceleration Error - E6 . . . . . . . . . . . . . . . . . . . . . . 83
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
AGA9 Requirements . . . . . . . . . . . . . . . . . . . . . . . . 11
Alarm Relay, Fail-Safe Operation . . . . . . . . . . . . . . . 20
Amplitude Error - E5 . . . . . . . . . . . . . . . . . . . . . . . . 83
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Calibrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Configuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Recorder Properties . . . . . . . . . . . . . . . . . . . . . . . 60
Approval, INMETRO . . . . . . . . . . . . . . . . . . . . . . 125
Approvals
Brazilian INMETRO . . . . . . . . . . . . . . . . . . . . . 125
Nederlands Meetinstituut NMI . . . . . . . . . . . . . . 137
Romanian Bureau of Legal Metrology . . . . . . . . . 139
Archiving Site Files . . . . . . . . . . . . . . . . . . . . . . . . . 57
B
Backlight, Adjusting . . . . . . . . . . . . . . . . . . . . . . . . 25
BRML Approval . . . . . . . . . . . . . . . . . . . . . . . . . . 139
C
CE Mark Compliance . . . . . . . . . . . . . . . . . . . . . . 119
Channel Tabs
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Computer Network
Adding Instruments . . . . . . . . . . . . . . . . . . . . . . . 35
Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configuration Parameters . . . . . . . . . . . . . . . . . . . . . 56
Configuration, Path . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connections
See Part Name
Contamination, Gas . . . . . . . . . . . . . . . . . . . . . . . . . 88
Corrosion, Transducers . . . . . . . . . . . . . . . . . . . . . . 89
Sentinel™ User’s Manual
Cycle Skip Error - E6 . . . . . . . . . . . . . . . . . . . . . . . 83
D
Diagnostic Parameters
Displaying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Value Record . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Diagnostics
Channel Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Display, LCD
See Liquid Crystal Display
Displaying Data
Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . 85
Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Graph Format . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Measurement Mode . . . . . . . . . . . . . . . . . . . . . . . 53
Text Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Disturbances, Flow . . . . . . . . . . . . . . . . . . . . . . . . . 11
Document Number . . . . . . . . . . . . . . . . . . . . . . . . . . i
DSP Signal Error - E7 . . . . . . . . . . . . . . . . . . . . . . . 84
E
Electrical Connections
See Wiring
Electronics Specifications . . . . . . . . . . . . . . . . . . . 107
Environmental Compliance . . . . . . . . . . . . . . . . . . . iv
Environmental Specifications . . . . . . . . . . . . . . . . . 111
Error Codes . . . . . . . . . . . . . . . . . . . . . . 81, 82, 83, 84
Error Message, Display Screen . . . . . . . . . . . . . . 82, 85
F
Fault Alarm, Programming . . . . . . . . . . . . . . . . . . . . 59
Flow
Bi-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Conditioning Plate . . . . . . . . . . . . . . . . . . . . . . 5, 10
Direction Indicator . . . . . . . . . . . . . . . . . . . . . . . . 59
Disturbances . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Erratic Readings . . . . . . . . . . . . . . . . . . . . . . . . . 85
Maximum Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Minimum Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Uni-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Flow Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . 10
145
Index
Flowcell Problems
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Frequency Output
Configuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Function Verification . . . . . . . . . . . . . . . . . . . . . . . . 54
G
Gas
Contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Physical Requirements . . . . . . . . . . . . . . . . . . . . . 88
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Soundspeed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Get, Signal Setup Button . . . . . . . . . . . . . . . . . . . . . 52
I
Information Paragraphs . . . . . . . . . . . . . . . . . . . . . . iii
INMETRO Approval . . . . . . . . . . . . . . . . . . . . . . . 125
Insertion Mechanism
Clearance for . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
When Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Installation
Bi-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Connections . . . . . . . . . . . . . . . . . . . . . 14
Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installing the System . . . . . . . . . . . . . . . . . . . . . . 13
Mounting Flange . . . . . . . . . . . . . . . . . . . . . . . . . 13
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Uni-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Internal Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
L
LCD
See Liquid Crystal Display
Leaks, Transducers . . . . . . . . . . . . . . . . . . . . . . . . . 89
Liquid Crystal Display
Adjusting Contrast and Brightness . . . . . . . . . . . . 24
Adjustment Location . . . . . . . . . . . . . . . . . . . . . . 24
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Low Signal Error - E1 . . . . . . . . . . . . . . . . . . . . . . . 82
LVD Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
146
M
Measurements
Displaying . . . . . . . . . . . . . . . . . . . . . . . . . . . 53, 69
Taking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Meter
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Meter Browser
Output Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Modbus
Connecting the Communications Line . . . . . . . . . . 19
Mounting Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Multipath Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
N
NMI Approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Node ID . . . . . . . . . . . . . . . . . . . . . . . . . . . 35, 37, 38
O
Operation, Principal of . . . . . . . . . . . . . . . . . . . . . . . . 3
Option Cards, Wiring . . . . . . . . . . . . . . . . . . . . . . . . 19
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 118
P
PanaView
Adding Instruments . . . . . . . . . . . . . . . . . . . . . . . 35
Computer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Displaying Parameters . . . . . . . . . . . . . . . . . . . . . 86
Flow Measurement Units . . . . . . . . . . . . . . . . . . . 70
Meter Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Output Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Resetting Totalizers . . . . . . . . . . . . . . . . . . . . . . . 75
Parameters, Setting . . . . . . . . . . . . . . . . . . . . . . . . . 56
Path Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pipe
Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Power
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sentinel™ User’s Manual
Index
Press In Error - E9 . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pressure, Entering Constants . . . . . . . . . . . . . . . . . . 67
Principal of Operation . . . . . . . . . . . . . . . . . . . . . . . . 3
Flow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Multipath Design . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transit-Time Method . . . . . . . . . . . . . . . . . . . . . . . 4
Pusher, Transducer . . . . . . . . . . . . . . . . . . . . . . . . 103
R
Records
Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . 123
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Resetting Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . 73
RS485 Port
See Serial Port
S
Safety
Auxiliary Equipment . . . . . . . . . . . . . . . . . . . . . . iii
General Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Personal Equipment . . . . . . . . . . . . . . . . . . . . . . . iv
Security
Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Sensors, Calibrating . . . . . . . . . . . . . . . . . . . . . . . . . 66
Serial Port
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service Record . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Setup, Minimum Required . . . . . . . . . . . . . . . . . . . . 33
Signal Quality Error - E4 . . . . . . . . . . . . . . . . . . . . . 83
Signal Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Signal Setup Buttons
Get . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Site Files
Archiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Soundspeed Error - E2 . . . . . . . . . . . . . . . . . . . . . . . 82
Soundspeed, Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Sentinel™ User’s Manual
Specifications
Data Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Spoolpiece. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Spoolpiece
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 115
System
Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 105
T
Temperature Input Error - E8 . . . . . . . . . . . . . . . . . . 84
Temperature, Entering Constants . . . . . . . . . . . . . . . 67
Terminal Block
Power - TB5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Serial Port - RS485 . . . . . . . . . . . . . . . . . . . . . . . 18
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Totalizer Overflow Error - E10 . . . . . . . . . . . . . . . . . 84
Totalizer/Frequency
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Totalizers
Resetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Using PanaView . . . . . . . . . . . . . . . . . . . . . . . . . 75
Transducers
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Damage, Internal . . . . . . . . . . . . . . . . . . . . . . . . . 89
Damage, Physical . . . . . . . . . . . . . . . . . . . . . . . . 89
Insertion Mechanism Clearance . . . . . . . . . . . . . . 13
Installation Components . . . . . . . . . . . . . . . . 93, 101
Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . 94, 102
Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Principal of Operation . . . . . . . . . . . . . . . . . . . . . . 4
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Pusher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Removing . . . . . . . . . . . . . . . . . . . . . . . . . . . 92, 97
Replacing . . . . . . . . . . . . . . . . . . . . . . . . 89, 92, 96
147
Index
Transit-Time Method . . . . . . . . . . . . . . . . . . . . . . . . . 4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 54, 85
U
Units
Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Signal Setup Button . . . . . . . . . . . . . . . . . . . . . . . 52
V
Velocity Range Error - E3 . . . . . . . . . . . . . . . . . . . . 83
Velocity, Entering Constants . . . . . . . . . . . . . . . . . . . 68
Voltage, Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
W
WEEE Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Wiring
Access to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Alarm Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 23
CE Mark Compliance . . . . . . . . . . . . . . . . . . . . . 119
Connection Labels . . . . . . . . . . . . . . . . . . . . . . . . 15
Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . 22
Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Making Connections . . . . . . . . . . . . . . . . . . . . . . 14
Modbus Communications Line . . . . . . . . . . . . . . . 19
Option Card
See Card Name
Totalizer Output . . . . . . . . . . . . . . . . . . . . . . . . . . 22
148
Sentinel™ User’s Manual
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.
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Warranty
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Sentinel™ User’s Manual
GE
Measurement & Control
Certification &
Safety Statements
Certification & Safety Statements for GE Measurement & Control Ultrasonic Flow Transmitters
When installing this apparatus, the following requirements must be met:
• Field wiring shall be rated at least 10°C above 70°C.
• Connecting cables shall be mounted securely and protected from mechanical damage, pulling and twisting.
• Cable entries are ¾” NPT.
• Cable glands of an approved flameproof design are required. 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 certified threaded plug.
• Modifications to the flameproof enclosure are not permitted.
• The apparatus should be de-energized before opening.
• Installation should comply with IEC/EN 60079-14.
• Equipment is of type flameproof “d” design and complies with: EN 60079-0:2009, EN 60079-1:2007,
EN 60529:1991 +A1:2000, IEC 60079-0:2011, IEC 60079-1:2007, IEC 60529:2001.
• 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.
Special Conditions for Safe Use:
Consult the manufacturer if dimensional information on the flameproof joints is
necessary.
Markings: Markings shall appear on the product as shown below:
C
FM
US
APPROVED
CL I, DIV. 1, GPS BCD; T6.
CL I, ZONE 1, AEx/Exd IIB + H2
GE INFRASTRUCTURE SENSING
1100 TECHNOLOGY PARK DR.
BILLERICA MA USA
II 2 G Ex d IIB + H2 T6 Gb IP66
IECEx FMG12.0012X
MODEL: XXXXXXX
FM12ATEX0040X
S/N: XXXXXXXX
Tamb = -20°C to +60°C
MFG DATE: MMXXYY
CABLE GLAND ENTRIES ARE 3/4" NPT
VOLTAGE: XXX
SUPPLY CONNECTION WIRING SHALL BE RATED
1180
WATTS: XXX
AT LEAST 10°C ABOVE 70°C.
WARNING - DO NOT OPEN WHEN ENERGIZED
AVERTISSEMENT - Ne pas ouvrir sous tension
WARNING - DO NOT OPEN WHEN AN EXPLOSIVE GAS ATMOSPHERE IS PRESENT
AVERTISSEMENT - Ne pas ouvrir une atmosphere eplosive gazeuse est presente
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-0001, Rev. A
June 2012
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GE
Sensing
EC DECLARATION
OF
CONFORMITY
DOC-0009, Rev. C
GE Sensing
1100 Technology Park Drive
Billerica, MA 01821
USA
We,
declare under our sole responsibility that the
Sentinel LCT Liquid Custody Transfer Ultrasonic Flowmeter
Sentinel LNG Cryogenic Liquids Ultrasonic Flowmeter
Sentinel SEN898 Ultrasonic Flow Transmitter
to which this declaration relates, are in conformity with the following harmonized standards:
• EN 61326-1: 2006, Class A, Table 2, Industrial Locations
• EN 61326-2-3: 2006
• EN 61010-1: 2012, Overvoltage Category II
• EN 60079-0: 2012
• EN 60079-1: 2007
• EN 60079-7: 2007
• EN 60529: 1991 +A1: 2000
and the following previously harmonized standards:
• EN60079-0: 2009
II 2 G Ex d IIB+H2 T6-T4 Gb or Ex d e IIB+H2 T6-T4 Gb, Ta = -40°C to +60°C, IP66
FM13ATEX0018X & IECEx FMG 13.0008X
• EN 61241-0: 2006
• EN 6124101: 2004
II 2 D Ex tD A21 T85°C, Ta = -40°C to +60°C, IP66
FM09ATEX0072X & IECEx FMG 09.0014X
following the provisions of the 2004/108/EC EMC, 2006/95/EC Low Voltage and 94/9/EC ATEX Directives.
The units listed above and any ancillary equipment supplied with them 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 - September 18, 2015
Issued
Mr. Gary Kozinski
Certification & Standards, Lead Engineer
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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/quality-certifications
www.gemeasurement.com
©2016 General Electric Company. All rights reserved.
Technical content subject to change without notice.
910-246 Rev. D
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