Sentinel Operating Manual - GE Measurement & Control

Sentinel Operating Manual - GE Measurement & Control
GE
Sensing & Inspection Technologies
Sentinel™
Panametrics Flow Measurement System
User’s Manual
GE
Sensing & Inspection Technologies
Sentinel™
Panametrics Flow Measurement System
User’s Manual
910-246B3
March 2008
Sentinel is a Panametrics product. Panametrics has joined other GE high-technology sensing businesses
under a new name—GE Sensing & Inspection Technologies.
March 2008
Warranty
Each instrument manufactured by GE Sensing, Inc. is warranted to be
free from defects in material and workmanship. Liability under this
warranty is limited to restoring the instrument to normal operation or
replacing the instrument, at the sole discretion of GE. Fuses and
batteries are specifically excluded from any liability. This warranty is
effective from the date of delivery to the original purchaser. If GE
determines that the equipment was defective, the warranty period is:
•
one year for general electronic failures of the instrument
•
one year for mechanical failures of the sensor
If GE determines that the equipment was damaged by misuse,
improper installation, the use of unauthorized replacement parts, or
operating conditions outside the guidelines specified by GE
Infrastructure Sensing, Inc., the repairs are not covered under this
warranty.
The warranties set forth herein are exclusive and are in lieu of
all other warranties whether statutory, express or implied
(including warranties of merchantability and fitness for a
particular purpose, and warranties arising from course of
dealing or usage or trade).
iii
March 2008
Return Policy
If a GE Sensing, Inc. instrument malfunctions within the warranty
period, the following procedure must be completed:
1. Notify GE, 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 will issue a
RETURN AUTHORIZATION number (RA), and shipping instructions
for the return of the instrument to a service center will be
provided.
2. If GE 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 will evaluate the instrument to determine the
cause of the malfunction.
Then, one of the following courses of action will then be taken:
iv
•
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 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.
March 2008
Table of Contents
Chapter 1: Installation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Meter Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Name and Specification Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Priniciple of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Transit-Time Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Multipath Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Flow Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Maximum and Minimum Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Installation Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Sentinel Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Installing the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Making Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14
Removing the Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Wiring the Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16
Wiring the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
Wiring the Modbus Communications Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
Wiring the I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
Wiring the Alarm Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
Wiring 0/4-20 mA Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
Wiring the Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-22
Wiring the Std 0/4-20 mA Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-23
Adjusting LCD Contrast and Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-24
Chapter 2: Initial Setup
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Adding a Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Adding the Sentinel to the Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Meter Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Meter Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Signal Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Channel Tabs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Signal Setup Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
v
March 2008
Table of Contents (cont.)
Chapter 3: Operation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Function Verification Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Installation Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
The LCD Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Setting Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Archiving Site Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Programming a Fault Alarm / Flow Direction Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Configuring and Calibrating Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Configuring the Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Calibrating the Analog Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Configuring and Testing Frequency Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Configuring the Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Testing the Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Calibrating the Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Entering Temperature and Pressure Constants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Entering Velocity Constants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Displaying Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Resetting Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Preparing the Electronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Using PanaView . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Returning to Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Chapter 4: Error Codes
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Error Descriptions and Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Chapter 5: Diagnostics
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flowcell Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pipe Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transducer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi
5-1
5-2
5-4
5-5
5-5
5-6
5-7
March 2008
Table of Contents (cont.)
Chapter 6: Transducer Replacement
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Transducer Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Replacing T11 Transducers with the Pipeline Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Removing the Old Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Installation Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Installing a New Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Replacing T11 Transducers with the Pipeline Pressurized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Removing the Old Transducer (while pressurized) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Installation Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12
Installing a New Transducer (while pressurized) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13
Chapter 7: Specifications
System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Operating Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Meter Nominal Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Flow Velocity Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Electronics Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Random Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Sinusoidal Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Mechanical Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Power Voltage Variation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Short Time Power Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Bursts (Transients) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9
Electromagnetic Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9
Transducer Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-10
Spoolpiece Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Sentinel Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-13
Spoolpiece Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-13
Electronics Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-14
Appendix A: CE Mark Compliance
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B: Data Records
Service Record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
vii
March 2008
Table of Contents (cont.)
Appendix C: Brazilian INMETRO Approval
Appendix D: NMI Nederlands Meetinstituut Approval
Appendix E: Romanian Bureau of Legal Metrology Approval
viii
Chapter 1
Installation
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Meter Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Name and Specification Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Priniciple of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Installing the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Making Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
March 2008
Introduction
The GE Sentinel, shown in Figure 1-1 below, is a flow measurement
system that includes a multipath ultrasonic flowmeter, associated
upstream piping, and a flow conditioner. The entire system is shipped
fully assembled and preconfigured. The system was designed
specifically for the natural gas custody transfer industry and meets or
exceeds all requirements of AGA Report No. 9.
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 1-1: Sentinel Flow Measurement System
Installation
1-1
March 2008
Meter Components
Figure 1-19 on page 1-27 shows the complete Sentinel system and
each of the items is described in Table 1-1 and Table 1-2 below.
Table 1-1: Sentinel System Components
No.
Component
Description
1 Meter Body
Measurement section of a Sentinel System.
2 Name and Specification Plate All pertinent information in a single location.
3 Transducer Holder Assembly Device to support a transducer and provide a
mounting point for the Insertion Mechanism.
4 Transducer
Flow sensor to transmit and receive ultrasonic waves.
5 Cable Assembly - Transducer Conductors assembled and rated for hazardous areas.
to Electronics Unit
6 Explosion-Proof Junction Box Housing for electrical connections in hazardous area.
7 Electronics Unit
Meter electronics equipment, including power supply,
processing unit and communications.
8 External Conduits Connection Location for power and communications
connections. Cable glands are 3/4” NPT.
9 Upstream Spoolpiece
Meter run section (downstream of the flow
(length = 10 x ID)
conditioner) which allows the flow to develop before
entering the meter body.
10 Flow Conditioner
Device to reduce the effects of upstream
Model CPA 50E
piping configurations.
11 Downstream Spoolpiece*
Meter run section (downstream of the flow
(length = 10 x ID)
conditioner) which allows the flow to develop before
entering the meter body.
12 Flow Conditioner*
Device to reduce the effects of upstream piping
Model CPA 50E
configurations.
13 Nuts and Bolts
Hardware to hold flanges together.
14 Gasket
Seal between each set of flanges.
15 Flowcell Stand
Structure to support the meter body during shipping
(removed after installation)
and storage.
16 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 1-2: Sentinel 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.
1-2
Installation
March 2008
Name and Specification
Plate
The location of the Sentinel specification plate is shown in Figure 1-1
on page 1-1 and Figure 1-19 on page 1-27. Figure 1-2 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 1-2: Sentinel Data Plate
Priniciple of Operation
Installation
The Sentinel Measurement System uses ultrasonic transit-time
technology. A brief description of transit-time theory follows. For
more information about the the theory, and the use of GE ultrasonic
flowmeters for measuring flow, please refer to Ultrasoinc
Measurements for Process Control by L.C. Lynnworth (Academic
Press, 1989)
1-3
March 2008
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 1-3 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 1-3: Path Configuration
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 nonfunctional, 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.
1-4
Installation
March 2008
Multipath Design
Multipath 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 flowrate. 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 1-3 on page 1-4).
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 1-4 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 Crossflow
Vx, Vy ≈ 0
x
z
Crossflow is eliminated
Figure 1-4: Using a Flow Conditioner to Influence Flow Profile
Installation
1-5
March 2008
Maximum and Minimum
Flow
psig
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 1-3 and Table 1-4
below for English units and Table 1-5 and Table 1-6 on page 1-7 for
metric units.
Table 1-3: Maximum Flow MMSCF (millions of standard cubic feet) per Day
6”
8”
10”
12”
14”
16”
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.
psig
Table 1-4: Minimum Flow MMSCF (millions of standard cubic feet) per Day
6”
8”
10”
12”
14”
16”
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.
1-6
Installation
March 2008
Maximum and Minimum
Flow (cont.)
Table 1-5: Maximum Flow MMSCM (millions of standard cubic meters) per Day
bar
15cm
20cm
25cm
30cm
36cm
41cm
46cm
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
Maximum 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.
bar
Table 1-6: Minimum Flow MkSCM (thousands of standard cubic meters) per Day
15cm
20cm
25cm
30cm
36cm
41cm
46cm
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
Minimum 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.
Installation
1-7
March 2008
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.
Be sure to follow all applicable local safety codes and
regulations for installing electrical equipment and working
with hazardous gases or flow conditions. Consult company
safety personnel or local safety authorities to verify the
safety of any procedure or practice.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed
as described in Appendix A, CE Mark Compliance.
1-8
Installation
March 2008
Sentinel Location
For both uni-directional and bi-directional flow (see Figure 1-5 and
Figure 1-6 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 1-5: 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 1-6: Typical Sentinel Installation, Bi-Directional Flow
Installation
1-9
March 2008
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
1-7 below shows pressure drop as a function of velocity for a unidirectional 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
ΔP = --- kρV
2
where ΔP 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.
Figure 1-7: Flow Conditioning Plate Pressure Drop
1-10
Installation
March 2008
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 1-7 below lists the test results of a Sentinel Flow Measurement
System installed in a straight run of pipe, compared to the
requirements of AGA9.
Table 1-7: Sentinel Performance vs. AGA9 Requirements
AGA9
Category
Sentinel
Requirements
% Error
Max Peak-To-Peak Error
Repeatability
Resolution
Velocity Sampling Interval
Zero Flow Reading
± 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.
Installation
1-11
March 2008
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 1-8 below).
All the mechanical and electronic components are shipped fully
assembled (see Figure 1-1 on page 1-1), 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 1-10 on page 1-13).
Spanner Bar
Lifting Strap
Lifting Strap
Figure 1-8: Lifting Strap Locations
1-12
Installation
March 2008
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 1-9 below).
"D
18
"L
36
Figure 1-9: Insertion Mechanism Minimum Clearance
Installing the System
Being mindful of Installation Precautions listed on page 1-12,
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 1-10 below).
4. Secure the spoolpiece to the pipe by using the appropriate
hardware.
Figure 1-10: Sentinel End View - Mounting Flange
Installation
1-13
March 2008
Making Electrical
Connections
This section contains instructions for making the necessary electrical
connections to the flow transmitter (see Figure 1-11 below). The
wiring between transmitter and transducers has been accomplished at
the factory. No further work is required on this portion of the wiring.
!ATTENTION EUROPEAN CUSTOMERS!
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 1-11: Sentinel Flow Measurement System Connections
1-14
Installation
March 2008
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 (whatever
electrical connections are required).
3. Place a rod or long screwdriver across the cover(s) in the slots
provided, and rotate the cover(s) counterclockwise until it comes
free from the enclosure.
4. Note the label inside each rear cover (see Figure 1-12 below) to
assist in wiring the power (enclosure #2) and option card
connections (enclosure #1).
Proceed to the appropriate section of this chapter to make the desired
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 1-12: Connection Labels Inside Rear Covers
Installation
1-15
March 2008
Wiring the Line Power
The Sentinel may be ordered for operation with a power input of
85-264 VAC or 15–36 VDC (see Table 7-5: Electronics Ordering
Information in Chapter 7). The label on the side of the electronics
enclosure lists the Sentinel’s required line voltage and power rating.
The fuse size is listed in Chapter 7, Specifications. Be sure to connect
the Sentinel to the specified line voltage only.
Note: For compliance with the European Union’s 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 unit.
IMPORTANT:
Use cable and cable glands approved for Class I,
Division 1 locations.
See Figure 1-13 on page 1-17 to locate terminal block TB5 and to
connect the line power to the Sentinel as outlined below:
!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 1-13 on page 1-17. If possible, avoid using the
other conduit holes for this purpose, to minimize any interference
in the circuitry from the AC power line.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed
as described in Appendix A, CE Mark Compliance.
1-16
Installation
March 2008
Wiring the Line Power
(cont.)
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 1-21 on page 1-29 and
Figure 1-13 below.
5. Leaving a bit of slack, secure the power line with the cable clamp.
!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. Once the line power has been connected to the flow transmitter
(enclosure #2), replace its rear cover, tighten the set screw, and
proceed to the next section.
DC
Li
ne
Ne
ut
ra
Gn
l
d
1
Po
sit
ive
Ne
ga
tiv
e
AC
1
2
2
3
3
Cable Gland
Cable Gland
Figure 1-13: Enclosure #2 - Wiring the Line Power, AC or DC
Installation
1-17
March 2008
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 EIA-RS Serial
Communications Manual (916-054).
Wiring the RS485 Interface Upon request, the standard RS485 port on the meter may be
configured as a three-wire RS232 interface. (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 1-20 on page 1-28 and
Figure 1-22 on page 1-30 (AC) or Figure 1-23 on page 1-31 (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 1-14 below.
J1 / TB6
1
2
Converter
SHLD 3
C
RX (RS485–) 4
–
TX (RS485+) 5
+
Figure 1-14: Typical RS485 Connections
!ATTENTION EUROPEAN CUSTOMERS!
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.
1-18
Installation
March 2008
Wiring the Modbus
Communications Line
The Sentinel uses the RS485 interface with Modbus communications
protocol for a maximum line distance up to 4,000 ft (1,200 m). The
factory recommends using shielded 22-gauge (22 AWG) cable having
a characteristic impedance of 120 ohms, with 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. See Figure 1-20 on page 1-28 and
Figure 1-22 on page 1-30 (AC) or Figure 1-23 on page 1-31 (DC).
Wiring the I/O Card
The Sentinel accommodates the following 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 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 1-20 on page 1-28
and wire the I/O terminal as indicated on the label inside the rear
cover (see Figure 1-13 on page 1-17, Figure 1-20 on page 1-28).
For wiring diagrams, see Figure 1-22 on page 1-30 (AC) or Figure
1-23 on page 1-31 (DC).
4. Secure the cable clamp.
!ATTENTION EUROPEAN CUSTOMERS!
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.
Installation
1-19
March 2008
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
1-15 below for the operation of a normally open alarm relay in failsafe mode.
Connect the alarm relay in accordance with the wiring instructions
shown on the label inside the enclosure #1 rear cover (see Figure 1-13
on page 1-17 and Figure 1-20 on page 1-28). For wiring diagrams see
Figure 1-22 on page 1-30 (AC) or Figure 1-23 on page 1-31 (DC).
Fail-Safe
(not triggered)
NO
C
NC
ALARM
MONITORING
DEVICE
Fail-Safe
(triggered or power failure)
NO
C
NC
ALARM
MONITORING
DEVICE
Figure 1-15: Fail-Safe Operation
1-20
Installation
March 2008
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 1-16 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 1-13 on page 1-17 and Figure 1-20 on page 1-28).
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 1-16: Analog Input Wiring Diagram
Installation
1-21
March 2008
Wiring the Frequency
Output
Figure 1-17 below shows sample wiring diagrams of a totalizer
output circuit and a frequency output circuit (designated as A).
Totalizer Output
Sentinel™
Pulse Counter
Volts +
(Int. Pwr. Sup.)
OUT
Load
RTN
Volts (Common)
Frequency Output
Sentinel™
Frequency Counter
+5V
200Ω
OUT
IN
RTN
Common
Figure 1-17: Totalizer and Frequency Output Wiring
Table 1-8: Wiring the J2/TB2 I/O Terminal Block
I/O Pin #
Function
1-22
1
A - Freq. Out
2
A - Freq. Rtn
3
A - NC
4
B Alarm - NO
5
B Alarm - COM
6
B Alarm - NC
7
C - +24V Out
8
C - Analog In +
9
C - Analog In Rtn
10
D - +24V Out
11
D - Analog In +
12
D - Analog In Rtn
Installation
March 2008
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 outputs 1 and 2, also A
and B). 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 1-20 on page 1-28 for the location of the J1
terminal block and wire the analog outputs as shown. Secure the
cable clamp.
!ATTENTION EUROPEAN CUSTOMERS!
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.
Installation
1-23
March 2008
Adjusting 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 window 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 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 1-18 on page 1-25). Using these pots 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 1-16), 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. Once the desired LCD adjustments have been made, replace the
meter front cover and proceed with the installation.
1-24
Installation
March 2008
Contrast
Adjustment
Backlight
Adjustment
LCD Display
Board
Figure 1-18: Enclosure #1 Front View - Cover Removed
Installation
1-25
March 2008
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
16 places
14
4 places
4
7
5
13
14
Figure 1-19: Sentinel Flow Measurment System Assembly
4 places
16 places
13
12
10
2
1
9
3
4 places
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
Installation
1-27
March 2008
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
Pin #
Conduit Hole
7pl
Installation
Desig.
1
CH1UP
2
CH1RTN Upstream RTN(-)
3
CH1RTN Downstream RTN(-)
4
CH1DN
Mounting Boss
Description
Upstream SIG(+)
Downstream SIG(+)
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
J1 - ANALOG & RS232/RS485
Downstream SIG(+)
Pin #
1
*See wiring label inside rear cover.
Upstream SIG(+)
J3 - CH1 TRANSDUCER**
Description
**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 1-20: Sentinel Enclosure #1 - Terminal Block Layout
MODBUS CONN.
Analog Output A-
1-28
March 2008
Nameplate
Conduit Hole, 7pl
DC POWER INPUT
Pin #
Power Cable Inlet
Installation
1
Line Positive
2
Line Negative
3
No Connection
AC POWER INPUT
NOTE: For compliance with the European Union's 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
Sentinel™.
Description
Figure 1-21: Sentinel Enclosure #2 - Power Connections
NOTE: Enclosure #2 is shown from
the rear with the rear cover removed.
Mounting Boss
Pin #
Description
1
Line Power
2
Line Neutral
3
Earth Ground
1-29
March 2008
Frequency
OUT1
RTN1
Red
Black
Alarm
NO
COM
Red
Black
1. J5 as shown is on the 1345 Communication Board
that connects to the 1236 Board.
#22 Twisted
2. Wire colors are represented as follows:
B = Black
O = Orange (from Mineral Insulated enclosure link)
R = Red
Y = Yellow (from Mineral Insulated enclosure link)
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
Channel
Up
Transducer
2
Down
Transducer
Twisted
Pair
Twisted
Pair
Channel
Down
Transducer
1
Up
Transducer
Important:
Transducer wiring, accomplished at the
factory, is shown for information purposes
only and should not be changed by the user.
Installation
RS485
+
–
L
RS232
RX
TX
AC
Figure 1-22: Sentinel AC Wiring Diagram (ref dwg #702-496)
RS485 –
RS485 +
Modbus
Notes:
#18
N
G
#22 +Shield
RS485
Connections
RS232
Connections
AC POWER
Connections
1-30
March 2008
Frequency
OUT1
RTN1
Red
Black
Alarm
NO
COM
Red
Black
1. J5 as shown is on the 1345 Communication Board
that connects to the 1236 Board.
#22 Twisted
2. Wire colors are represented as follows:
B = Black
O = Orange (from Mineral Insulated enclosure link)
R = Red
Y = Yellow (from Mineral Insulated enclosure link)
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
1
PC Board #703-1459
2
+
–
3
TB5
Twisted
Pair
Twisted
Pair
Twisted
Pair
Twisted
Pair
Figure 1-23: Sentinel DC Wiring Diagram (ref dwg #702-497)
RS485 –
RS485 +
Modbus
Notes:
#18
Channel
Up
Transducer
2
Down
Transducer
Channel
Down
Transducer
1
Up
Transducer
Important:
Transducer wiring, accomplished at the
factory, is shown for information purposes
only and should not be changed by the user.
Installation
RS485
+
–
RS232
RX
TX
DC
+
–
#22 +Shield
RS485
Connections
RS232
Connections
DC POWER
Connections
1-31
Enclosure #1
Rear View
Rear View
Re d
Blac
k
Brow
n
Blue
Re d
Blac
k
Brow
n
Blue
Enclosure #2
Channel 2 DN
Channel 2 UP
PC Board
703-1459
PC Board
703-1460
Connector
e
Whit
Black
ra
ng
e
1
Yellow
Mineral Insulated Cable
4
CH
White
W
hit
e
Ye
llo
w
R
B ed
Br lack
o
Bl wn
ue
1
4
CH
2
R
B ed
Br lack
o
Bl wn
ue
White
Orange
White
Channel 1 DN
O
J3
J4
1
Connector
Connector
White
Black
White
Connector
Black
k
ac
Bl
e
hit
W
Channel 1 UP
Figure 1-24: Sentinel Flow Transmitter - Internal Wiring (ref dwg #705-1093)
March 2008
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.
Installation
1-32
Chapter 2
Initial Setup
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Adding a Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Adding the Sentinel to the Communications Port. . . . . . . . . . . . . . . . . . . 2-3
Meter Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Meter Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Signal Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
March 2008
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, shipped with the unit, installed
on that computer.
Note: See the PanaView Graphical User Interface User’s Manual 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.
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 2-1: 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 2-1 above).
Select My Computer > New > Communications Port > and add a port by
pressing the left mouse button.
Initial Setup
2-1
March 2008
Adding a
Communications Port
(cont.)
Once the port is added, the port properties will need to be set. See
Figure 2-2 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 (910-211C).
Figure 2-2: Default Communication Parameters
2-2
Initial Setup
March 2008
Adding the Sentinel to
the Communications
Port
Select the desired communication port by clicking once on it with the
left mouse button (see Figure 2-3 below). Then press the right mouse
button to activate the pop-up menu. Select New > Meter > from the
pop-up menu.
Figure 2-3: 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 2-4
below). If the node ID is not known proceed to page 2-5)
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 2-4 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 2-4: Instrument Node ID Acknowledgement
Initial Setup
2-3
March 2008
Adding the Sentinel to
the Communications
Port (cont.)
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 2-5: Setting the Node ID
2-4
Initial Setup
March 2008
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 2-6 below).
Note: The network referred to in Figure 2-6 below is the RS485
connection between the instrument and the computer RS232to-RS485 connector.
Note: The new meter must be the only powered meter on the
network.
Figure 2-6: Instrument Node ID Disacknowledgement
At the next prompt (see Figure 2-7 below) select “It is the only meter
connected to the communication port” and then click on OK .
Figure 2-7: Searching the Port for Instrument Node ID
Initial Setup
2-5
March 2008
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 2-8 below).
Note: The Node ID can be changed later on by going to the meter
properties.
Figure 2-8: Selecting the Node ID
Once 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 2-5 on page 1-4 appears, and the user must then enter the Node
ID number in the ID entry.
Once 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.
2-6
Initial Setup
March 2008
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 2-9 below).
The meter provides three security levels.
Level 1 security is available to GE Sensing 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 lower three accounts. The default User Name and
Password are:
User Name: Supervisor
Password: [The assigned Serial Number]
Figure 2-9: Security Form
Initial Setup
2-7
March 2008
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
2-10 below).
Figure 2-10: Example Audit Trail Log
2-8
Initial Setup
March 2008
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 2-11 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 2-11: Meter Properties Display
Initial Setup
2-9
March 2008
Signal Setup
Click on Signal Setup at the bottom of the Meter Properties Form and
the Signal Setup form appears (see Figure 2-12 on page 2-11).
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 passward.
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.
•
2-10
Operating mode: This display indicates if the instrument is in idle
in the program mode or normally operating in run mode.
Initial Setup
March 2008
Signal Setup (cont.)
Figure 2-12: Signal Setup Display
Initial Setup
2-11
March 2008
Channel Tabs
This section programs the meter parameters and requires the user to
login before any parameters can be changed.
General
Figure 2-13 on page 21-13 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 = soundspeed (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.
2-12
•
# 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.
Initial Setup
March 2008
General (cont.)
Figure 2-13: General Tab Display
Initial Setup
2-13
March 2008
Fluid
2-14
Figure 2-14 on page 2-15 shows a typical Fluid tab display.
•
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.
Initial Setup
March 2008
Fluid (cont.)
Figure 2-14: Fluid Tab Display
Initial Setup
2-15
March 2008
Errors
To set limits for possible errors, see Figure 2-15 on page 2-17 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 error.
2-16
•
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.
Initial Setup
March 2008
Errors (cont.)
Figure 2-15: Errors Tab Display
Initial Setup
2-17
March 2008
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 2-16 on
page 2-19).
•
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
2-18
•
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.
Initial Setup
March 2008
Diagnostics (cont.)
Plot
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.
Figure 2-16: Diagnostics Tab Display
Initial Setup
2-19
March 2008
Signal Setup Buttons
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 2-17 below).
Figure 2-17: Signal Unit Preferences
Get
All of the programming information are stored in the meter nondestructive memory. PanaView displays may be updated manually by
pressing the Get button.
2-20
Initial Setup
Chapter 3
Operation
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Setting Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Archiving Site Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Programming a Fault Alarm / Flow Direction Indicator . . . . . . . . . . . . . 3-8
Configuring and Calibrating Analog Outputs . . . . . . . . . . . . . . . . . . . . . . 3-9
Configuring and Testing Frequency Output. . . . . . . . . . . . . . . . . . . . . . . 3-12
Calibrating the Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Entering Temperature and Pressure Constants . . . . . . . . . . . . . . . . . . . 3-16
Entering Velocity Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Displaying Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Resetting Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
March 2008
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 this chapter. The
specific topics discussed are listed on the previous page along with
their locations.
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 the
factory 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.
Operation
3-1
March 2008
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.
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 European Union’s 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
Sentinel.
There are two methods for obtaining readings from the Sentinel:
•
the built-in meter LCD Display (set up 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 PanaView Graphical Interface
User Interface User’s Manual 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 the
factory 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.
3-2
Operation
March 2008
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.
1. Verify that the plant 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 plant computer is
reasonable and stable.
If none of the above procedures indicate a problem, the function
verification is complete, otherwise proceed to Installation
Troubleshooting Procedures below.
Installation
Troubleshooting
Procedures
The purpose of these procedures is to troubleshoot Sentinel
installation, if after performing the Function Verification Procedures
above, a fault condition was indicated.
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 the factory 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 plant 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 plant computer or the flow computer, if used.
Check the programming of the flow computer, if used, and see that its
input and output wiring checks out. Otherwise, call the factory for
assistance.
Operation
3-3
March 2008
The LCD Display
The components of the LCD display are shown in Figure 3-1 below,
along with a typical mass flow rate readout.
Parameter
Channel #
CH1 MASS
4500
VEL
Flow Rate
LB/HR
Units
Figure 3-1: A Typical LCD Flow Rate Display
As shown in Figure 3-1 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 LCD Contrast and Brightness in
Chapter 1).
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.
3-4
Operation
March 2008
Setting Configuration
Parameters
With PanaView installed on your computer (see the PanaView
Graphical Interface User’s Manual), you can enter and record meter
information in a number of different ways. The Meter Browser Menu is
illustrated in Figure 3-2 below.
Figure 3-2: PanaView Meter Browser Menu
Operation
3-5
March 2008
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 3-3
below).
Figure 3-3: Selecting the Site File Icon
A dialogue box will appear (see Figure 3-4 below).
Figure 3-4: Site Selection Dialogue Box
3-6
Operation
March 2008
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 Adding Instruments to
the Network in Chapter 2.
Operation
3-7
March 2008
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 3-5
below).
Figure 3-5: Selecting the Alarm Icon
A dialogue box will appear (see Figure 3-6 below). Select whether the
relay should be configured as a Fault Alarm or as a Flow Direction
Indicator and click OK.
Figure 3-6: Alarm/Direction Indicator Dialogue Box
3-8
Operation
March 2008
Configuring and
Calibrating Analog
Outputs
Every flowmeter includes two built-in analog outputs (A and B) at
terminal block J1.
Before beginning calibration, an ammeter must be connected to the
desired analog output. Both the zero-point and 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% full scale), their linearity
should be tested.
Note: The zero point of the analog output may be set at either 0 mA
or 4 mA. However, the calibration always uses the 4 mA point,
as the meter extrapolates this value to obtain the 0 mA point.
Configuring the Analog
Outputs
Prepare for calibration by inserting an ammeter in series with the load
on the desired output. THE LOAD MUST NOT EXCEED 600 Ω.
DO NOT connect the ammeter directly across the terminals. See
Figure 3-7 below to identify the OUT(+) and RTN(-) pins.
Terminal Block J1
4
B
RTN
1
B
SIG
A
RTN
A
SIG
–
+
Load
Ammeter
Figure 3-7: Ammeter Connection (Output A)
Use PanaView Recorder Properties to calibrate an Analog Output. To
access these selections, 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 3-8 on
page 3-10).
Operation
3-9
March 2008
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 3-8 below.
Figure 3-8: 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 3-9 below).
Figure 3-9: Recorder Errors
3-10
Operation
March 2008
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 3-10 below should appear, asking if
you want to test the Recorder. Press Yes.
Figure 3-10: Test Recorder Prompt
3. The screen should now look similar to Figure 3-11 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 done calibrating the analog output.
Figure 3-11: Test/Calibrate Recorder
Operation
3-11
March 2008
Configuring and Testing
Frequency Output
Use PanaView Unassigned Frequency on I/O to calibrate a Frequency
Output. To access these selections, complete the following steps:
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 3-12 below.
Figure 3-12: Frequency Properties
3-12
Operation
March 2008
Configuring the
Frequency Output (cont.)
7. Next, click on the Errors tab (see Figure 3-13 on page 3-13). Select
the Error Handling schemes for On Low Error and On High Error cases
from the drop-down menus. Then Click on Apply.
Figure 3-13: Frequency Errors
Operation
3-13
March 2008
Testing the Frequency
Output
1. Under the General tab, click on Test.
2. A window similar to Figure 3-14 below should appear, asking if
you want to test the Frequency. Click on Yes.
Figure 3-14: Test Frequency Prompt
3. The screen should now look similar to Figure 3-15 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 3-15: Test Frequency Window
3-14
Operation
March 2008
Calibrating the Sensors
Use PanaView ADC Configuration to calibrate a Sensor option card. To
access these selections, 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 3-16 below). A
display similar to that shown in Figure 3-17 below appears.
5. Make whatever selections and settings are appropriate under both
displays (General and Calibration), and click on OK or Apply. 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 3-16: Accessing the Sensor Configuration
Figure 3-17: PanaView Temperature Assignments (two separate displays)
Operation
3-15
March 2008
Entering Temperature
and Pressure Constants
Use PanaView to enter fixed values for flow temperature and/or
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.
Under File open the New Meter Browser.
2. To enter values for Channel 1, click on the + sign before each level
to open it (see Figure 3-2 on page 3-5).
3. Double click on the Temp or Pres option and the Temperature or
Pressure display appears (see Figure 3-18 below).
4. Enter the desired values and click on the OK button.
5. To set up temperature and/or pressure constants for Channel 2,
repeat the above process with the Channel 2, Temp or Pres option.
6. When the appropriate temperature and pressure values have been
entered, proceed to Entering Velocity Constants on page 3-17.
Figure 3-18: PanaView Temperature and Pressure (two separate displays)
3-16
Operation
March 2008
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. Under File open the New Meter Browser.
3. To enter values for Channel 1, click on the + sign before each level
to open it (see Figure 3-2 on page 3-5).
4. Click twice on Vel and the Velocity display appears (see Figure
3-19 below).
5. Enter the desired values and click on the OK button.
Note: Values should be 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 3-19: PanaView Velocity Correction Display
Operation
3-17
March 2008
Displaying
Measurements
Use PanaView to observe sensor information on the computer screen
in any combination of channels, measurement modes, and
measurement units in either a textual or a graphical format.
To set up this 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. Under File open a New Meter Browser.
3. Under Output select Graphing/New or Text Display, whichever is
desired.
4. Click on the + sign before each level to open it (see Figure 3-20
below and Table 3-1 on page 3-21 for an explanation of terms).
Figure 3-20: PanaView Output Menu
3-18
Operation
March 2008
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 that shown in Figure 3-21 below or
Figure 3-22 on page 3-20 will appear
7. Once the parameters have been observed and recorded, exit the
display and repeat the procedure for any other information.
Figure 3-21: PanaView Measurements Display in Text Format
Operation
3-19
March 2008
Displaying
Measurements (cont.)
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 the PanaView
Graphical User Interface User's Manual, Chapter 6, Data Handling.
Figure 3-22: PanaView Measurements Display in Graph Format
3-20
Operation
March 2008
Displaying
Measurements (cont.)
Operation
Table 3-1: PanaView Flow Measurement Units
Selection
Description
Temp
Temperature
T_C
Degrees Celsius
T_F
Degrees Farenheit
T_K
Kelvin
T_DVM
Digital Voltmeter (Diagnostic Mode)
Pres
Pressure
PSIg
Pounds per square inch (general)
Bars
Bars
mbs
Millibars
mmHg
Millimeters of Mercury
Pas
Pascal, gauge
kPas
KiloPascal, gauge
PSIa
Pounds per square inch (absolute)
MPas
MegaPascal
P_DVM
Digital Voltmeter (Diagnostic Mode)
Vel
Velocity
Vinst_M/S
Instantaneous velocity in meters/sec.
Vinst_Ft/S
Instantaneous velocity in feet/second
Vel_M/S
Average velocity in meters/second
Vel_Ft/S
Average velocity in feet/second
SndSp
Soundspeed
SOS_M/S
Speed of sound in meters/second
SOS_Ft/S
Speed of sound in feet/second
ActMetVol
Actual Metric Volume
ACM/S
Actual Metric Volume per second
KACM/S
Kilo Actual Metric Volume per second
MACM/S
Mega Actual Metric Volume per second
ACM/M
Actual Metric Volume per minute
KACM/M
Kilo Actual Metric Volume per minute
MACM/M
Mega Actual Metric Volume per minute
ACM/H
Actual Metric Volume per hour
KACM/H
Kilo Actual Metric Volume per hour
MACM/H
Mega Actual Metric Volume per hour
ACM/D
Actual Metric Volume per day
KACM/D
Kilo Actual Metric Volume per day
MACM/D
Mega Actual Metric Volume per day
NrmMetVol Standard Metric Volume
with “NCM” (same as above with “NCM”)
Actual English Volume
ActEngVol
with “ACF” (same as above with “ACF”)
StdEngVol
Standard English Volume
(same as above with “SCF”)
with “SCF”
3-21
March 2008
Table 3-1: PanaView Flow Measurement Units (cont.)
Selection
Description
+ActMetTot Actual Metric Total Forward
+ACM
Actual Metric Total Foward in meters
+KACM
Actual Metric Total Forward in kilometers
+MACM
Actual Metric Total Forward in megameters
-ActMetTot
Actual Metric Total Reversed
-ACM
Actual Metric Total Reversed in meters
-KACM
Actual Metric Total Reversed in kilometers
-MACM
Actual Metric Total Reversed in megameters
+NrmMetTot Standard Metric Total Forward
+NCM
Standard Metric Total Forward in meters
+KNCM
Standard Metric Total Forward in kilometers
+MNCM
Standard Metric Total Forward in megameters
-NrmMetTot Standard Metric Total Reversed
-NCM
Standard Metric Total Reversed in meters
-KNCM
Standard Metric Total Reversed in kilometers
-MNCM
Standard Metric Total Reversed in megameters
+ActEngTot Actual English Total Forward
+ACF
Actual English Total Forward in feet
+KACF
Actual English Total Forward in kilofeet
+MACF
Actual English Total Forward in megafeet
-ActEngTot
Actual English Total Reversed
-ACF
Actual English Total Reversed in feet
-KACF
Actual English Total Reversed in kilofeet
-MACF
Actual English Total Reversed in megafeet
+StdEngTot Standard English Total Forward
+SCF
Standard English Total Forward in feet
+KSCF
Standard English Total Forward in kilofeet
+MSCF
Standard English Total Forward in megafeet
-StdEngTot
Standard English Total Reversed
-SCF
Standard English Total Reversed in feet
-KSCF
Standard English Total Reversed in kilofeet
-MSCF
Standard English Total Reversed in megafeet
Comp
Composite
Cmp Vel
Composite velocity
Cmp SOS
Composite soundspeed
Diag
Diagnostic Parameters
P Num Up
Signal peaks - upstream flow
P Num Dn
Signal Peaks - downstream flow
Cmp Flow Err Composite flow error
Cmp Comm Err Composite common error
Percentage error
Percent Err
Meas Mode Measuring mode
3-22
Operation
March 2008
Resetting Totalizers
Periodically, totalizers will need to be reset to zero. To reset the
totalizers:
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 3-23 below.
3. Unscrew the cover and set it aside.
Figure 3-23: Breaking the Seal
4. Identify the notch toward the top left of the display board through
which the DIP switch can be seen (see Figure 3-24 below).
Figure 3-24: Locating the Dip Switch
Operation
3-23
March 2008
Preparing the Electronics
(cont.)
5. Use a small screwdriver to move the top (#8) switch to the ON
(left) position (see Figure 3-25 below).
6. If the system is not already connected to a PC or laptop computer,
use the RS232 (or RS485) terminal on the back side of the
electronics to make the connection.
7. Power up the electronics.
DIP Switch #8
ON
OFF
Figure 3-25: Moving DIP Switch #8 to ON
Using PanaView
Please be aware of the following:
•
Only PanaView can be used to reset the totalizers. Use the Meter
Browser window (see Figure 3-26 on page 3-25).
•
Each channel has its own totalizer:
•
•
3-24
•
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.
Operation
March 2008
Using PanaView (cont.)
Figure 3-26: The Meter Browser Window
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 3-27 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 3-27: Actual Metric Total Fwd on Average
Operation
3-25
March 2008
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.
3-26
Operation
March 2008
Channel 1
New Meter
Browser
Channel 2
User Functions
Temp
(COM 1)
Network
(COM 2)
–Difference
General
Calibration
Vel
Reynolds
Correction
Temp.
Test
StdEngVol
+ActMetTot
–ActMetTot
+NumMetTot
–NumMetTot
+ActEngTot
–ActEngTot
+StdEngTot
–StdEngTot
Meter Logs
Recorders
General
Errors
Frequencies
General
Errors
Value
Value
K-Factor
SndSp
ActEngVol
Alarm - I/O
User X
General
NrmMetVol
+Sum
Display
User Tables
Unassigned
Fault Alarm
Flow Direction
Indicator
User 1
Pres
ActMetVol
Average
New Meter
Vel
Value
Reynolds
Correction K-Factor
Table A
SndSp
Actual Volume in M 3
ActMetVol
Normal Volume in M3
NrmMetVol
Actual Volume in Ft 3
ActEngVol
Standard Volume in Ft 3
StdEngVol
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
+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
Category
Title
Title
Title
Title
Title
Unassigned
I/O 1
Values
Unassigned
I/O 2
Values
Unassigned
I/O 5
Values
Figure 3-28: PanaView Meter Browser Menu Map
File
Category
Category
Total Reverse Actual in Ft 3
Total Forward Standard in Ft 3
Total Reverse Standard in Ft 3
Diag
Operation
3-27
Chapter 4
Error Codes
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Error Descriptions and Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
March 2008
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.
For information on setting up the Sentinel to diagnose errors which
occur, see the Errors and Diagnostics sections in Chapter 2, Initial
Setup.
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 will appear in the LCD display screen, as
shown in Figure 4-1 below.
Error Message
CH1 MASS
4500
Err X
LCD Display
Figure 4-1: Error Message Location
Error Codes
4-1
March 2008
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.
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.
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).
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.
Err 1: Low Signal
Err 2: Soundspeed Error
4-2
Error Codes
March 2008
Err 3: Velocity Range
Err 4: Signal Quality
Err 5: Amplitude Error
Err 6: Cycle Skip, Accel.
Error Codes
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.
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.
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.
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.
4-3
March 2008
Err 7: DSP Signal Error
Err 8: Temp Input Error
Err 9: Press In Error
Err 10: Totalizer Overflow
4-4
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.
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 in
Chapter 3 and calibrate the analog input card.
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.
Error Codes
Chapter 5
Diagnostics
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Displaying Diagnostic Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Diagnostic Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Flowcell Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Transducer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
March 2008
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 (i.e. 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.
Diagnostics
5-1
March 2008
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, 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 a New Meter Browser.
3. Under Output select Graphing/New or Text Display, whichever is
desired.
4. Click on the + sign before each level to open it (see Figure 5-1
below and Table 3-1 at the end of Chapter 3 for an explanation of
terms).
Figure 5-1: PanaView Meter Browser Output Menu
5-2
Diagnostics
March 2008
Displaying Diagnostic
Parameters (cont.)
5. Select whichever channel is desired and click on the + sign before
Diag (Diag on Channel X).
6. Double click on one or more of the six parameters and, depending
on the number of parameters chosen and the format that was
selected in Step 3, a display similar to that shown in Figure 5-2
below or Figure 5-3 on page 5-4 will appear.
Note: The Graphing/New selection will allow only one or two
parameters per display (see Figure 5-3 on page 5-4).
7. Once the parameters have been observed and recorded, exit the
display and repeat the procedure for any other information.
Figure 5-2: Diagnostic Display in Text Format
Diagnostics
5-3
March 2008
Displaying Diagnostic
Parameters (cont.)
Note: Upon exiting a display in graph format, a prompt reading
"Save chart data to log file?” appears. Respond as desired and
exit the display.
Diagnostic Record
The values for the diagnostic parameters, immediately after initial
installation of the meter and verification of proper operation, should
be entered in Table B-2 in Appendix B, Data Records. These values
can then be compared to future values to help diagnose any future
malfunction of the system.
For further details on collecting and displaying data see the PanaView
Graphical User Interface User’s Manual, Chapter 6, Data Handling.
Figure 5-3: Diagnostic Display in Graph Format
5-4
Diagnostics
March 2008
Flowcell Problems
If preliminary troubleshooting with the Error Codes in Chapter 4
and/or Displaying Diagnostic Parameters on page 5-2 indicates a
possible flowcell problem, proceed with this section. Flowcell
problems fall into two 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 the factory for assistance.
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:
1. 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.
2. The gas must not excessively attenuate ultrasound signals.
Some gases (i.e. high-purity carbon dioxide, hydrogen, nitrogen,
etc.) readily absorb ultrasound energy. In such a case, an E1 error
code message will appear on the meter display screen to indicate
that the ultrasonic signal strength is insufficient for reliable
measurements.
3. 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 and/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 in Chapter 3, and make sure
that the appropriate soundspeed appears in the soundspeed display.
Diagnostics
5-5
March 2008
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 flowmeters. By far, the most
common pipe problems are the following:
1. The collection of material at the transducer location(s).
Accumulated debris at the transducer location(s) 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 orientation.
2. Inaccurate pipe measurements.
The accuracy of the flow rate measurements is no better than the
accuracy of the programmed pipe dimensions. With a Sentinel
system, the flowcell dimensions will already have been
programmed in by the factory and the correct data will be included
in the documentation. Check the adjacent pipe for dents,
eccentricity, weld deformity, straightness and other factors that
may cause inaccurate readings.
5-6
Diagnostics
March 2008
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:
1. 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.
2. 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 the factory for information on transducers in
materials suitable for the application.
3. 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.
4. 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 transducers 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
the factory for assistance.
Diagnostics
5-7
Chapter 6
Transducer Replacement
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Transducer Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Replacing T11 Transducers with the Pipeline Shut Down . . . . . . . . . . . . 6-3
Replacing T11 Transducers with the Pipeline Pressurized . . . . . . . . . . . 6-7
March 2008
Introduction
!WARNING!
Prior to performing any maintenance procedures, be sure
to disconnect the main power from the unit.
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 European Union’s 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
Sentinel.
IMPORTANT:
Keep a detailed record of all parts installations and
replacements 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.
Transducer Replacement
6-1
March 2008
Transducer Construction
Each T11 transducer assembly (see Figure 6-1 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 6-1: General T11 Transducer Assembly
6-2
Transducer Replacement
March 2008
Replacing T11
Transducers with the
Pipeline Shut Down
Once T11 transducers are properly installed into the meter body, they
require no additional adjustments.
If, however, transducer exchange is required, and the pipeline is shut
down and depressurized, or the meter is removed, use the following
procedure.
!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
installation of T11 Transducers on a depressurized pipe line.
Removing the Old
Transducer
•
torque wrench
•
spray lubricant
•
anti-seize lubricant
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 they are not damaged. If
one or more 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.
Transducer Replacement
6-3
March 2008
Installation Components
Table 6-1: Components at each Transducer Location
No.* 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
AR
8
Anti-Seize Lubricant
AR
*Component numbers correspond to item numbers in Figure 6-2.
5
6
4 places
8
2
T11 Transducer
4 places
7
4
7
3
1
2 places
Note:
Item numbers correspond to the
numbers listed in Table 6-1 above.
Figure 6-2: T11 Installation Components with the Pipeline Shut Down
6-4
Transducer Replacement
March 2008
Installing a New
Transducer
IMPORTANT:
The following procedures should be used only in
situations where the process line is shut down.
IMPORTANT:
Do not reuse the o-rings. Replace them with new
Viton, 90 durometer o-ring seals: two radial seals
size 210, and one transducer face seal size 213.
Using the components listed in Table 6-1 and Figure 6-2 on page 6-4,
proceed to install the transducers by completing the following steps:
1. Grease and install three new o-rings within the T11 holder (see
Figure 6-3 below and Table 6-1 on page 6-4).
2
4
3 2X
Note: Item numbers
correspond to the
numbers listed in
Table 6-1 on page 6-4.
Figure 6-3: 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.
3. Lubricate the shaft of the transducer with o-ring-safe spray
lubricant.
4. Carefully insert the transducer into the holder, until the flange
contacts the face seal o-ring, so as not to disturb the o-rings.
Transducer Replacement
6-5
March 2008
Installing a New
Transducer (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 6-4 below. Then to 30 ft-lb in the same
order shown in Figure 6-4 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.
!WARNING!
POTENTIAL 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 6-4: Holder, Top View - Order of Tightening Bolts
6-6
Transducer Replacement
March 2008
Replacing T11
Transducers with the
Pipeline Pressurized
If you are unable to depressurize the pipeline, use the following
procedure to remove an existing transducer and install a new one.
IMPORTANT:
The following procedure is used only in situations
where the process line cannot be shut down.
!WARNING!
Follow all applicable safety codes while performing the
following procedures.
!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 6-10 on page 6-10).
Attention is required to ensure safe use.
!WARNING!
Because of the serious nature of replacing transducers
with the process line open, 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
installation of T11 Transducers on a pressurized pipeline:
•
torque wrench (with 9/16” and 5/8” sockets)
•
spray lubricant
•
anti-seize lubricant
•
Sentinel T11 insertion mechanism kit
IMPORTANT:
Transducer Replacement
Removal and re-installation must be done as a single
process. Do not leave transducers removed for an
extended period of time.
6-7
March 2008
Removing the Old
Transducer (while
pressurized)
To remove an existing transducer under pressure, 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 handtighten the transducer pusher onto the transducer until it is firmly
in place (see Figure 6-5 below).
Pusher
T11 Transducer
Ball Valve
(open)
Figure 6-5: Transducer Pusher Installation
3. Apply anti-seize lubricant to the insertion mechanism threads.
Apply antiseize
to threads here.
Figure 6-6: Insertion Mechanism - Anti-seize Application
6-8
Transducer Replacement
March 2008
Removing the Old
Transducer (while
pressurized) (cont.)
4. Thread the insertion mechanism onto the meter body holder, then
connect a hydraulic pump to the insertion mechanism (refer to
Figure 6-7 and Figure 6-8 below).
Figure 6-7: Installing the Insertion Mechanism
Figure 6-8: Connecting the Hydraulic Pump
Transducer Replacement
6-9
March 2008
Removing the Old
Transducer (while
pressurized) (cont.)
5. Pressurize the hydraulic ram to 1500 psi (see Figure 6-9 below).
Figure 6-9: Pressurizing the Hydraulic Pump
6. Remove the four bolts from the transducer flange with a 9/16”
socket wrench (see Figure 6-10 below).
IMPORTANT:
Inspect the bolts to verify they are not damaged. If
one or more 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 6-10: Transducer Flange Bolt Removal
!WARNING!
While T11 Transducers are being removed or installed, the
insertion mechanism where the transducer is being
retracted or inserted is a potential pinch point. Keep hands
clear of this danger zone as much as is practical.
6-10
Transducer Replacement
March 2008
Removing the Old
Transducer (while
pressurized) (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 6-11 below).
Positive Stop
Transducer
Retracted
Danger Zone!
Keep hands clear as
much as is practical.
Ball Valve
(closed)
Relief Valve
Figure 6-11: 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 is now removed from the pipe.
Transducer Replacement
6-11
March 2008
Installation Components
5
6
4 places
Table 6-2: Components at each Transducer Location
Item 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
AR
8
Anti-Seize Lubricant
AR
2
T11 Transducer
8
4 places
7
4
7
3
1
2 places
Note:
Item numbers correspond to the
numbers listed in Table 6-2 above.
Figure 6-12: T11 Installation Components with the Pipeline Pressurized
6-12
Transducer Replacement
March 2008
Installing a New
Transducer (while
pressurized)
To install a new transducer, follow the steps below.
IMPORTANT:
Do not re-use o-rings. Replace them with new Viton,
90 durometer o-ring seals: 2x axial seals size 210, 1x
transducer face seal size 213.
Use the components listed in Table 6-2 and Figure 6-12 on page 6-12
and install the transducers by completing the following steps:
1. Grease and install three new o-rings within the T11 holder (see
Figure 6-13 below and Table 6-2 on page 6-12).
2
4
3 2X
Note: Item numbers
correspond to the
numbers listed in
Table 6-2 on page 6-12.
Figure 6-13: 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 insure there
is no damage to either.
3. Apply anti-seize lubricant to the new T11 transducer NPT threads,
then assemble a T11 pusher onto the new transducer (refer to
Figure 6-14 on page 6-14).
4. Lubricate the shaft of the transducer with o-ring-safe spray
lubricant. Insert the transducer into the meter body holder,
carefully pressing the transducer head past the radial o-rings (see
Figure 6-13 above and Figure 6-14 on page 6-14).
Transducer Replacement
6-13
March 2008
Installing a New
Transducer (while
pressurized) (cont.)
Pusher
Transducer Threads
Flange
M etallic Body
Transducer Head
Figure 6-14: T11 Transducer and Pusher
5. While keeping the pump valve open, thread the insertion
mechanism onto the holder and connect the hydraulic pump (see
Figure 6-7 on page 6-9).
6. Slide the T11 transducer back to the positive stop of the insertion
mechanism (see Figure 6-11 on page 6-11). Verify that the
pressure relief valve is closed and torqued to 15 ft-lb.
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, slide on 3/8”
lock washers and bolt the flange to the holder. Tighten the bolts
evenly and diagonally opposite each other, alternating in a crisscross pattern, to 15 ft-lb then to 30 ft-lb.
10. Release pressure from the hydraulic ram, remove the insertion
mechanism, and remove the transducer pusher.
11. Reinstall the junction box and connect the transducer to the
Sentinel meter following the Electronics Installation Procedure.
6-14
Transducer Replacement
Chapter 7
Specifications
System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Electronics Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Transducer Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Spoolpiece Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Sentinel Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
March 2008
System Specifications
The system specifications for the Sentinel Flow Measurement System
are divided into the following categories:
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)
•
Minimum: –22°F (–30°C)
•
Maximum: +140°F (+60°)C
•
Minimum: –40°F (–40°C)
•
Maximum: +140°F (+60°C)
•
Minimum: –40°F (–40°C)
•
Maximum: +140°F (+60°C)
Temperature
Ambient Temperature
Operating
Non-Operating
Specifications
7-1
March 2008
System Specifications
(cont.)
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
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
•
±0.3% in addition to nominal error
Error due to upstream
disturbances
Note: Accuracy can be improved with High Pressure NG flow
calibration
7-2
Specifications
March 2008
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)
•
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)
•
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%
•
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)
For pipe size 12" to 24"
(30 cm to 61 cm)
Electronics
Specifications
Approvals
Specifications
7-3
March 2008
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 Gouldtype RTU protocol. For security and audit-trail purposes, the unit
must be programmed through the PanaView interface. This means
that only the MoBbus 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> <
<CRC Low> <CRC High> <time delimiter>
Data ………
>
The format for the returned data types is as follows:
Integer
Integer (I)
1 Register
Floating Point
Single Precision (FP)
2 Registers
Double Precision
Double Precision (DP)
4 Registers
Table 7-1 on page 7-5 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 timecritical 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).
7-4
Specifications
March 2008
.
Table 7-1: Meter Data Map
Parameter
Type Default
Reg.
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
3
sm /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
56
Path C % Readings in Error
I
0
10s
57
Path C Last Error
I
0
10s*
1s
10s/Fixed
*Not available at this time.
Specifications
7-5
March 2008
Table 7-1: Meter Data Map (cont.)
Parameter
Type Default
Reg.
Unit
Refresh
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.
7-6
Specifications
March 2008
Environmental
Specifications
Operating Temperature
Minimum
•
–40°F (–40°C)
Maximum
•
+140°F (+60°C)
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 axes
Frequency Range
•
10-150 Hz
Total RMS level
•
6.56 ft/s2 (2 m/s2)
Number of axes
•
3
Duration
•
20 cycles per axes
Random Vibration
Sinusoidal Vibration
Specifications
7-7
March 2008
Environmental
Specifications (cont.)
Mechanical Shock
Free fall height
•
1 inch (25.4 mm)
Mains Voltage
•
Nominal mains voltage = 10%
Mains Frequency (AC
version)
•
50 Hz or 60 Hz ±2%
•
100% during 10ms
•
50% during 20ms
Repeated
•
10 times
Interval
•
10 seconds
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
Power Voltage Variation
Short Time Power
Reduction
Reduction
Bursts (Transients)
7-8
Specifications
March 2008
Environmental
Specifications (cont.)
Electrostatic Discharge
Exposure
•
10 times
Time Interval
•
10 seconds
Test Voltage direct contact
•
6 kV
Test Voltage Spark
•
8 kV
Frequency Range
•
0.1 to 500 MHz
Field strength
•
(3.05 Volts/ft (10 Volts/meter)
Electromagnetic
Susceptibility
Specifications
7-9
March 2008
Transducer
Specifications
GE T11 Ultrasonic Transducer
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:
•
2121Vdc ("+" 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
7-10
Specifications
March 2008
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 Buttwelding 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) meter body only
Operating Pressure
•
740 psig or 50 Bar for ANSI 300
•
1480 psig or 100 Bar for ANSI 600
•
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 Soluable Rust Preventitive
Exterior Coating System
Specifications
7-11
March 2008
Table 7-2: Pipe Dimensions
Meter Body Length
ANSI Flange Weight
Flange Face-to-Face
Nominal
Pipe Size
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 7-3: Component Materials
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.
7-12
Specifications
March 2008
Sentinel Ordering
Information
Table 7-4 below and Table 7-5 on page 7-14 show how the Sentinel
Flow Measurement System part numbers are configured from the
options specified.
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 - H -
1
-
I
-
Table 7-4: 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.
Specifications
7-13
March 2008
Electronics Ordering
Information
The information below shows how the Electronics part number is
configured from the options specified.
A
IGM878
LTR
CATEGORY
B
Power
C
Comm
D
Frequency
Standard Options:
B
C
D
-
Table 7-5: 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
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
7-14
Specifications
Appendix A
CE Mark Compliance
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
March 2008
Introduction
For CE Mark compliance, the Sentinel Flow Measurement System
must be wired in accordance with the instructions in this appendix.
IMPORTANT:
Wiring
CE Mark compliance is required only for units
intended for use in EEC countries.
The Sentinel must be wired with the recommended cable, and all
connections must be properly shielded and grounded. Refer to Table
A-1 below for the specific requirements.
Connection
Input/Output
Power
Table A-1: Wiring Modifications
Termination
Cable Type
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 89/336/EEC.
CE Mark Compliance
A-1
Appendix B
Data Records
Service Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Cards Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
March 2008
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 B-1 below. Make additional copies of the table as needed.
Date
Data Records
Table B-1: Service Record
Description of Service
Performed By
B-1
March 2008
Date
B-2
Table B-1: Service Record (cont.)
Description of Service
Performed By
Data Records
March 2008
Diagnostic Parameters
Parameter
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 B-2 below. For a
definition of terms see Table 3-1 at the end of Chapter 3.
Table B-2: Diagnostic Parameters
Initial
Current
Current
Current
Current
P Num Up
P Num Dn
Cmp Flow Err
Cmp Comm Err
Percent Err
Meas Mode
Data Records
B-3
March 2008
Cards Installed
Slot #
Whenever a 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 B-3 below.
Table B-3: Slot 1 and 2 Cards Installed
Type of Card
Additional Setup Information
1
2
B-4
Data Records
Appendix C
Brazilian INMETRO Approval
March 2008
Brazilian INMETRO Approval
C-1
March 2008
C-2
Brazilian INMETRO Approval
March 2008
Brazilian INMETRO Approval
C-3
March 2008
C-4
Brazilian INMETRO Approval
March 2008
Brazilian INMETRO Approval
C-5
March 2008
C-6
Brazilian INMETRO Approval
March 2008
Brazilian INMETRO Approval
C-7
March 2008
C-8
Brazilian INMETRO Approval
March 2008
Brazilian INMETRO Approval
C-9
March 2008
C-10
Brazilian INMETRO Approval
March 2008
Brazilian INMETRO Approval
C-11
March 2008
C-12
Brazilian INMETRO Approval
Appendix D
NMI Nederlands Meetinstituut Approval
March 2008
NMI Nederlands Meetinstituut Approval
D-1
March 2008
D-2
NMI Nederlands Meetinstituut Approval
Appendix E
Romanian Bureau of Legal Metrology Approval
ANEXA 1 la Certificatul aprobarii de model nr. 181/05. 12.2006
Romanian Bureau of Legal Metrology Approval
March 2008
E-1
March 2008
E-2
ANEXA 1 la Certificatul aprobarii de model nr. 181/05. 12.2006
Romanian Bureau of Legal Metrology Approval
ANEXA 1 la Certificatul aprobarii de model nr. 181/05. 12.2006
Romanian Bureau of Legal Metrology Approval
March 2008
E-3
March 2008
E-4
ANEXA 1 la Certificatul aprobarii de model nr. 181/05. 12.2006
Romanian Bureau of Legal Metrology Approval
ANEXA 1 la Certificatul aprobarii de model nr. 181/05. 12.2006
Romanian Bureau of Legal Metrology Approval
March 2008
E-5
GE
Sensing & Inspection Technologies
DECLARATION
OF
CONFORMITY
Panametrics Limited
Shannon Industrial Estate
Shannon, County Clare
Ireland
We,
declare under our sole responsibility that the
IGM878 Industrial Gas Ultrasonic Flow Transmitter
XGF868 Flare Gas Ultrasonic Flow Transmitter
XGM868 Multi-Purpose Gas Ultrasonic Flow Transmitter
XGN868 Natural Gas Ultrasonic Flow Transmitter
XGS868 Steam Mass Ultrasonic Flow Transmitter
XMT868 Liquid Ultrasonic Flow Transmitter
to which this declaration relates, are in conformity with the following standards:
• EN 50014:1997+A1+A2:1999
• EN 50018:2000
• EN50281-1-1:1998
• II 2 GD EEx d IIC T5; ISSeP02ATEX008
ISSeP, B7340 Colfontaine, Belgium
• EN 61326:1998, Class A, Annex A, Continuous Unmonitored Operation
• EN61010-1:1993+A2:1995, Overvoltage Category II, Pollution Degree 2
• EN 60529:1991+A1:2000
IP66
following the provisions of the 89/336/EEC EMC Directive, the 94/9/EC ATEX Directive and the 73/23/EEC Low Voltage
Directive.
The units listed above and any transducers supplied with them (spoolpieces are addressed under a separate
declaration of conformity) 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.
Shannon - July 1, 2003
Mr. James Gibson
GENERAL MANAGER
TÜV
TÜV ESSEN
ISO 9001
U.S.
CERT-DOC-H4
August 2004
GE
Sensing & Inspection Technologies
DECLARATION
DE
CONFORMITE
Panametrics Limited
Shannon Industrial Estate
Shannon, County Clare
Ireland
Nous,
déclarons sous notre propre responsabilité que les
IGM878 Industrial Gas Ultrasonic Flow Transmitter
XGF868 Flare Gas Ultrasonic Flow Transmitter
XGM868 Multi-Purpose Gas Ultrasonic Flow Transmitter
XGN868 Natural Gas Ultrasonic Flow Transmitter
XGS868 Steam Mass Ultrasonic Flow Transmitter
XMT868 Liquid Ultrasonic Flow Transmitter
rélatif á cette déclaration, sont en conformité avec les documents suivants:
• EN 50014:1997+A1+A2:1999
• EN 50018:2000
• EN50281-1-1:1998
• II 2 GD EEx d IIC T5; ISSeP02ATEX008
ISSeP, B7340 Colfontaine, Belgium
• EN 61326:1998, Class A, Annex A, Continuous Unmonitored Operation
• EN61010-1:1993+A2:1995, Overvoltage Category II, Pollution Degree 2
• EN 60529:1991+A1:2000
IP66
suivant les régles de la Directive de Compatibilité Electromagnétique 89/336/EEC, d’ATEX 94/9/EC et de la Directive
Basse Tension 73/23/EEC.
Les matériels listés ci-dessus ainsi que les transducteurs pouvant être livrés avec (les manchettes faisant l'objet d'une
déclaration de conformité séparée) ne portent pas le marquage CE de la directive des équipements sous pression,
car ils sont fournis en accord avec la directive 97/23/EC des équipements sous pression pour les DN<25, Article 3,
section 3 qui concerne les pratiques et les codes de bonne fabrication pour l'ingénierie du son.
Shannon - July 1, 2003
Mr. James Gibson
DIRECTEUR GÉNÉRAL
TÜV
TÜV ESSEN
ISO 9001
U.S.
CERT-DOC-H4
August 2004
GE
Sensing & Inspection Technologies
KONFORMITÄTSERKLÄRUNG
Panametrics Limited
Shannon Industrial Estate
Shannon, County Clare
Ireland
Wir,
erklären, in alleiniger Verantwortung, daß die Produkte
IGM878 Industrial Gas Ultrasonic Flow Transmitter
XGF868 Flare Gas Ultrasonic Flow Transmitter
XGM868 Multi-Purpose Gas Ultrasonic Flow Transmitter
XGN868 Natural Gas Ultrasonic Flow Transmitter
XGS868 Steam Mass Ultrasonic Flow Transmitter
XMT868 Liquid Ultrasonic Flow Transmitter
folgende Normen erfüllen:
• EN 50014:1997+A1+A2:1999
• EN 50018:2000
• EN50281-1-1:1998
• II 2 GD EEx d IIC T5; ISSeP02ATEX008
ISSeP, B7340 Colfontaine, Belgium
• EN 61326:1998, Class A, Annex A, Continuous Unmonitored Operation
• EN61010-1:1993+A2:1995, Overvoltage Category II, Pollution Degree 2
• EN 60529:1991+A1:2000
IP66
gemäß den Europäischen Richtlinien, Niederspannungsrichtlinie Nr.: 73/23/EG und EMV-Richtlinie Nr.: 89/336/EG und
ATEX Richtlinie Nr. 94/9/EG.
Die oben aufgeführten Geräte und zugehörige, mitgelieferte Schallwandler (Messrohre werden in einer separaten
Konformitätserklärung behandelt) tragen keine CE-Kennzeichnung gemäß der Druckgeräte-Richtlinie, da sie in
Übereinstimmung mit Artikel 3, Absatz 3 (gute Ingenieurpraxis) der Druckgeräte-Richtlinie 97/23/EG für DN<25
geliefert werden.
Shannon - July 1, 2003
Mr. James Gibson
GENERALDIREKTOR
TÜV
TÜV ESSEN
ISO 9001
U.S.
CERT-DOC-H4
August 2004
GE
Sensing & Inspection Technologies
ATEX COMPLIANCE
GE Infrastructure Sensing, Inc.
1100 Technology Park Drive
Billerica, MA 01821-4111
U.S.A.
We,
as the manufacturer, declare under our sole responsibility that the product
IGM878 Industrial Gas Ultrasonic Flow Transmitter
to which this document relates, in accordance with the provisions of ATEX Directive 94/9/EC Annex II, meets the
following specifications:
II 2 GD EEx d IIC T5 (-20°C to +65°C)
1180
ISSeP02ATEX008 T95°C IP66
Furthermore, the following additional requirements and specifications apply to the product:
• Having been designed in accordance with EN 50014, EN 50018, and EN 50281, the product meets the fault
tolerance requirements of electrical apparatus for category “d”.
• 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
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.
• Only trained, competent personnel may install, operate and maintain the equipment.
• The product has been designed so that the protection afforded will not be reduced due to the effects of corrosion
of materials, electrical conductivity, impact strength, aging resistance or the effects of temperature variations.
• 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.
• 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 contains no exposed parts which produce surface temperature infrared, electromagnetic ionizing, or
non-electrical dangers.
CERT-ATEX-D (Rev. August 2004)
March 2008
Index
A
D
Acceleration Error - E6 . . . . . . . . . . . . . . . . . 4-3
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Advantages. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
AGA9 Requirements . . . . . . . . . . . . . . . . . . 1-11
Alarm Relay, Fail-Safe Operation . . . . . . . . 1-20
Amplitude Error - E5 . . . . . . . . . . . . . . . . . . . 4-3
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Connecting . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Pin Assignments. . . . . . . . . . . . . . . . . . . . 1-21
Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Analog Outputs . . . . . . . . . . . . . . . . . . . . . . 1-23
Calibrating . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Configuring . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Connecting . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Recorder Properties . . . . . . . . . . . . . . . . . . 3-9
Approval, INMETRO . . . . . . . . . . . . . . . . . .C-1
Approvals
Brazilian INMETRO . . . . . . . . . . . . . . . . .C-1
Nederlands Meetinstituut NMI . . . . . . . . .D-1
Romanian Bureau of Legal Metrology . . . E-1
Archiving Site Files . . . . . . . . . . . . . . . . . . . . 3-6
Diagnostic Parameters
Displaying . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Recording . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Value Record . . . . . . . . . . . . . . . . . . . . . . . B-3
Diagnostics
Channel Tab . . . . . . . . . . . . . . . . . . . . . . .2-18
Display, LCD
See Liquid Crystal Display
Displaying Data
Diagnostic Parameters . . . . . . . . . . . . . . . .5-2
Error Message . . . . . . . . . . . . . . . . . . . . . . .4-2
Graph Format . . . . . . . . . . . . . . . . . . . . . . .5-2
Measurement Mode . . . . . . . . . . . . . . . . . .3-2
Text Format . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Disturbances, Flow . . . . . . . . . . . . . . . . . . . .1-11
DSP Signal Error - E7. . . . . . . . . . . . . . . . . . .4-4
B
Backlight, Adjusting . . . . . . . . . . . . . . . . . . 1-24
BRML Approval . . . . . . . . . . . . . . . . . . . . . . E-1
E
Electrical Connections
See Wiring
Electronics Specifications. . . . . . . . . . . . . . . .7-3
Environmental Specifications . . . . . . . . . . . . .7-7
Error Codes . . . . . . . . . . . . . . . .4-1, 4-2, 4-3, 4-4
Error Message, Display Screen. . . . . . . . 4-2, 5-1
C
CE Mark Compliance. . . . . . . . . . . . . . . . . . .A-1
Channel Tabs
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
General . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Components . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Computer Network
Adding Instruments . . . . . . . . . . . . . . . . . . 2-3
Setting Up. . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Configuration Parameters. . . . . . . . . . . . . . . . 3-5
Configuration, Path . . . . . . . . . . . . . . . . . . . . 1-4
Connections
See Part Name
Contamination, Gas . . . . . . . . . . . . . . . . . . . . 5-5
Corrosion, Transducers . . . . . . . . . . . . . . . . . 5-7
Cycle Skip Error - E6. . . . . . . . . . . . . . . . . . . 4-3
Index
1
March 2008
Index (cont.)
F
L
Fault Alarm, Programming. . . . . . . . . . . . . . . 3-8
Flow
Bi-Directional . . . . . . . . . . . . . . . . . . . . . . . 1-9
Conditioning Plate . . . . . . . . . . . . . . 1-5, 1-10
Direction Indicator . . . . . . . . . . . . . . . . . . . 3-8
Disturbances . . . . . . . . . . . . . . . . . . . . . . . 1-11
Erratic Readings . . . . . . . . . . . . . . . . . . . . . 5-1
Maximum Rate . . . . . . . . . . . . . . . . . . . . . . 1-6
Minimum Rate . . . . . . . . . . . . . . . . . . . . . . 1-6
Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Uni-Directional . . . . . . . . . . . . . . . . . . . . . . 1-9
Flow Pressure Drop . . . . . . . . . . . . . . . . . . . 1-10
Flowcell Problems
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Frequency Output
Configuring. . . . . . . . . . . . . . . . . . . . . . . . 3-12
Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Function Verification . . . . . . . . . . . . . . . . . . . 3-3
LCD
See Liquid Crystal Display
Leaks, Transducers . . . . . . . . . . . . . . . . . . . . 5-7
Liquid Crystal Display
Adjusting Contrast and Brightness . . . . . 1-24
Adjustment Location . . . . . . . . . . . . . . . . 1-25
Components . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Powering Up . . . . . . . . . . . . . . . . . . . . . . . 3-2
Low Signal Error - E1 . . . . . . . . . . . . . . . . . . 4-2
LVD Statement . . . . . . . . . . . . . . . . . . . . . . . 6-1
G
Gas
Contamination. . . . . . . . . . . . . . . . . . . . . . . 5-5
Physical Requirements . . . . . . . . . . . . . . . . 5-5
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Soundspeed . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Get, Signal Setup Button . . . . . . . . . . . . . . . 2-20
I
INMETRO Approval . . . . . . . . . . . . . . . . . . C-1
Insertion Mechanism
Clearance for. . . . . . . . . . . . . . . . . . . . . . . 1-13
When Used . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Installation
Bi-Directional . . . . . . . . . . . . . . . . . . . . . . . 1-9
Electrical Connections . . . . . . . . . . . . . . . 1-14
Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Installing the System. . . . . . . . . . . . . . . . . 1-13
Mounting Flange. . . . . . . . . . . . . . . . . . . . 1-13
Precautions . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Uni-Directional . . . . . . . . . . . . . . . . . . . . . . 1-9
Internal Tests. . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
2
M
Measurements
Displaying . . . . . . . . . . . . . . . . . . . . .3-2, 3-18
Taking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Meter
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Properties . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Meter Browser
Output Menu . . . . . . . . . . . . . . . . . . . . . . . 5-2
Modbus
Connecting the Communications Line . . 1-19
Mounting Flange . . . . . . . . . . . . . . . . . . . . . 1-13
Multipath Design . . . . . . . . . . . . . . . . . . . . . . 1-5
N
NMI Approval . . . . . . . . . . . . . . . . . . . . . . . . D-1
Node ID . . . . . . . . . . . . . . . . . . . . . . 2-3, 2-5, 2-6
O
Operation, Principal of . . . . . . . . . . . . . . . . . 1-3
Option Cards, Wiring . . . . . . . . . . . . . . . . . 1-19
Ordering Information. . . . . . . . . . . . . . . . . . 7-14
Index
March 2008
Index (cont.)
P
S
PanaView
Adding Instruments . . . . . . . . . . . . . . . . . . 2-3
Computer Setup . . . . . . . . . . . . . . . . . . . . . 2-1
Displaying Parameters . . . . . . . . . . . . . . . . 5-2
Flow Measurement Units . . . . . . . . . . . . . 3-21
Meter Browser . . . . . . . . . . . . . . . . . . . . . . 2-1
Output Menu . . . . . . . . . . . . . . . . . . . . . . . 5-2
Resetting Totalizers . . . . . . . . . . . . . . . . . 3-24
Parameters, Setting. . . . . . . . . . . . . . . . . . . . . 3-5
Path Configuration . . . . . . . . . . . . . . . . . . . . . 1-4
Pipe
Measurements . . . . . . . . . . . . . . . . . . . . . . 5-6
Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Spoolpiece Dimensions . . . . . . . . . . . . . . 7-12
Power
Connecting . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Terminal Block. . . . . . . . . . . . . . . . . . . . . 1-16
Powering Up. . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Press In Error - E9 . . . . . . . . . . . . . . . . . . . . . 4-4
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Pressure, Entering Constants . . . . . . . . . . . . 3-16
Principal of Operation . . . . . . . . . . . . . . . . . . 1-3
Flow Profile . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Multipath Design . . . . . . . . . . . . . . . . . . . . 1-5
Transducers . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Transit-Time Method . . . . . . . . . . . . . . . . . 1-4
Pusher, Transducer . . . . . . . . . . . . . . . . . . . . 6-14
Security
Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Sensors, Calibrating . . . . . . . . . . . . . . . . . . .3-15
Serial Port
Connecting . . . . . . . . . . . . . . . . . . . . . . . .1-18
Pin Assignments . . . . . . . . . . . . . . . . . . . .1-18
Service Record . . . . . . . . . . . . . . . . . . . . . . . B-1
Setup, Minimum Required . . . . . . . . . . . . . . .2-1
Signal Quality Error - E4 . . . . . . . . . . . . . . . .4-3
Signal Setup . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Signal Setup Buttons
Get. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
Site Files
Archiving . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Soundspeed Error - E2 . . . . . . . . . . . . . . . . . .4-2
Soundspeed, Gas . . . . . . . . . . . . . . . . . . . . . . .5-5
Specifications
Data Plate . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Electronics. . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Environmental. . . . . . . . . . . . . . . . . . . . . . .7-7
Spoolpiece. . . . . . . . . . . . . . . . . . . . . . . . . 7-11
System. . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Spoolpiece
Component Materials . . . . . . . . . . . . . . . .7-12
Pipe Dimensions . . . . . . . . . . . . . . . . . . . .7-12
Specifications . . . . . . . . . . . . . . . . . . . . . . 7-11
System
Advantages . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Components . . . . . . . . . . . . . . . . . . . . . . . .1-2
Connections. . . . . . . . . . . . . . . . . . . . . . . .1-14
Specifications . . . . . . . . . . . . . . . . . . . . . . .7-1
R
Records
Cards Installed . . . . . . . . . . . . . . . . . . . . . .B-4
Diagnostic Parameters . . . . . . . . . . . . . . . .B-3
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1
Resetting Totalizers . . . . . . . . . . . . . . . . . . . 3-23
RS485 Port
See Serial Port
Index
3
March 2008
Index (cont.)
T
W
Temperature Input Error - E8 . . . . . . . . . . . . . 4-4
Temperature, Entering Constants . . . . . . . . . 3-16
Terminal Block
Power - TB5 . . . . . . . . . . . . . . . . . . . . . . . 1-16
Serial Port - RS485 . . . . . . . . . . . . . . . . . . 1-18
Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Totalizer Overflow Error - E10. . . . . . . . . . . . 4-4
Totalizer/Frequency
Connecting . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Totalizers
Resetting . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Using PanaView . . . . . . . . . . . . . . . . . . . . 3-24
Transducers
Components . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Construction . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Damage, Internal. . . . . . . . . . . . . . . . . . . . . 5-7
Damage, Physical . . . . . . . . . . . . . . . . . . . . 5-7
Insertion Mechanism Clearance . . . . . . . . 1-13
Installation Components . . . . . . . . . . 6-4, 6-12
Installing . . . . . . . . . . . . . . . . . . . . . . 6-5, 6-13
Leaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Principal of Operation. . . . . . . . . . . . . . . . . 1-4
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Pusher . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Removing . . . . . . . . . . . . . . . . . . . . . . 6-3, 6-8
Replacing . . . . . . . . . . . . . . . . . . 5-7, 6-3, 6-7
Transit-Time Method . . . . . . . . . . . . . . . . . . . 1-4
Troubleshooting . . . . . . . . . . . . . . . 3-3, 5-1, 5-2
Wiring
Access to . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Alarm Relay. . . . . . . . . . . . . . . . . . . . . . . 1-20
Analog Inputs . . . . . . . . . . . . . . . . . . . . . 1-21
Analog Outputs . . . . . . . . . . . . . . . . . . . . 1-23
CE Mark Compliance . . . . . . . . . . . . . . . . A-1
Connection Labels . . . . . . . . . . . . . . . . . . 1-15
Frequency Output . . . . . . . . . . . . . . . . . . 1-22
I/O Terminal Block . . . . . . . . . . . . . . . . . 1-22
Line Power. . . . . . . . . . . . . . . . . . . . . . . . 1-16
Making Connections . . . . . . . . . . . . . . . . 1-14
Modbus Communications Line . . . . . . . . 1-19
Option Card
See Card Name
Totalizer Output. . . . . . . . . . . . . . . . . . . . 1-22
U
Units
Preferences . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Signal Setup Button . . . . . . . . . . . . . . . . . 2-20
V
Velocity Range Error - E3. . . . . . . . . . . . . . . . 4-3
Velocity, Entering Constants. . . . . . . . . . . . . 3-17
Voltage, Input . . . . . . . . . . . . . . . . . . . . . . . . 1-16
4
Index
USA
1100 Technology Park Drive
Billerica, MA 01821-4111
Web: www.gesensing.com
Ireland
Sensing House
Shannon Free Zone East
Shannon, Co. Clare
Ireland
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