GE Sensing T9 Gas Transducers Operating Manual
GE
Measurement & Control Solutions Flow
Model T9
Ultrasonic Flow Transducer
Installation Guide
916-080 Rev. B
July 2010
Model T9
Ultrasonic Flow Transducer
Installation Guide
916-080 Rev. B
July 2010
GESensingInspection.com
©2010 General Electric Company. All rights reserved.
Technical content subject to change without notice.
[no content intended for this page]
ii
Contents
Chapter 1. Information
1.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Transducer Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Chapter 2. Installing Pipe Nozzles
2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.2 Identifying and Checking the Nozzle Installation Kit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.3 Selecting and Marking the First Nozzle Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Determining and Marking the Second Nozzle Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.5 Installing the First Welding Boss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.6 Installing the First Nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.7 Installing the Second Welding Boss and Nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
2.8 Hot Tapping the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Chapter 3. Inserting T9 Transducers into the Pipe
3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.2 Inserting Transducers with the Simple Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.3 Inserting Transducers with the Barrel Holder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.4 Inserting Transducers with the Flanged Holder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3.4.1 Securing the Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Chapter 4. Maintenance
4.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4.2 Removing Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Chapter 5. T9 Specifications
5.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Model T9 Ultrasonic Flow Transducer Installation Guide iii
Contents
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iv Model T9 Ultrasonic Flow Transducer Installation Guide
Preface
Information Paragraphs
Note paragraphs provide information that provides a deeper understanding of the situation, but is not essential to
•
the proper completion of the instructions.
• Important paragraphs provide information that emphasizes instructions that are essential to proper setup of the
equipment. Failure to follow these instructions carefully may cause unreliable performance.
• Caution! paragraphs provide information that alerts the operator to a hazardous situation that can cause damage to
property or equipment.
• Warning! paragraphs provide information that alerts the operator to a hazardous situation that can cause injury to
personnel. Cautionary information is also included, when applicable.
Safety Issues
WARNING! It is the responsibility of the user to make sure all local, county, state and national codes,
regulations, rules and laws related to safety and safe operating conditions are met for each
installation.
Auxiliary Equipment
Local Safety Standards
The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards,
regulations, or laws applicable to safety.
Working Area
WARNING! Auxiliary equipment may have both manual and automatic modes of operation. As equipment
can move suddenly and without warning, do not enter the work cell of this equipment during
automatic operation, and do not enter the work envelope of this equipment during manual
operation. If you do, serious injury can result.
WARNING! Make sure that power to the auxiliary equipment is turned OFF and locked out before you
perform maintenance procedures on the equipment.
Qualification of Personnel
Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.
Personal Safety Equipment
Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary equipment.
Examples include safety glasses, protective headgear, safety shoes, etc.
Unauthorized Operation
Make sure that unauthorized personnel cannot gain access to the operation of the equipment.
Model T9 Ultrasonic Flow Transducer Installation Guide v
Preface
Environmental Compliance
Waste Electrical and Electronic Equipment (WEEE) Directive
GE Measurement & Control Solutions is an active participant in Europe’s Waste Electrical and Electronic Equipment
(WEEE) take-back initiative, directive 2002/96/EC.
The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural
resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle most of the
materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information on the collection, reuse and recycling systems, please contact your local or regional
waste administration.
Visit http://www.gesensing.com/environment/weee.htm
this initiative.
for take-back instructions and more information about
vi Model T9 Ultrasonic Flow Transducer Installation Guide
Chapter 1. Information
Metallic Body
Transducer Head
BNC Connector
Optional Noise Dampening Fitting
Chapter 1. Information
1.1 Overview
The T9 ultrasonic flow transducer is used exclusively with the GE line of ultrasonic flowmeters. These transducers
measure the flow rate of saturated steam and most gases through pipes having diameters between 2 in. (50 mm) and 48
in. (1200 mm). Such measurements are independent of the pipe material. This document provides details on the
following topics:
• Transducer Construction
• Nozzle Installation
• Transducer Installation
• Maintenance
• Specifications
1.2 Transducer Construction
Each T9 transducer assembly (see Figure 1) consists of the following components:
• a metallic body
• a transducer head that consists of a piezoelectric element wired to the BNC connector
• a BNC style connector for use in connecting the transducer to the flowmeter
• an optional noise dampening fitting improves transducer signal transmission.
o
The T9 transducer has a 180
(40 cm).
head and is available in the following lengths: 11 in. (28 cm), 13 in. (33 cm) and 16 in.
Figure 1: General T9 Transducer
Model T9 Ultrasonic Flow Transducer Installation Guide 1
Chapter 1. Information
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2 Model T9 Ultrasonic Flow Transducer Installation Guide
Chapter 2. Installing Pipe Nozzles
Chapter 2. Installing Pipe Nozzles
2.1 Introduction
Before the T9 transducers can be installed into the pipe, you will need to install pipe nozzles. Nozzles can be installed
on a hot or cold pipe using a GE Nozzle Installation Kit. Nozzles are installed in a Tilted 45
IMPORTANT: This procedure only applies if you ar e usin g a Nozzle Installation Kit. If you are tapping the pipe without
using a Nozzle Installation Kit, refer to the supplied drawings in your shipment. This procedure is written
and illustrated for installations on horizontal pipes; however, the procedure is the same for vertical pipe
installations.
This procedure contains the following instructions:
• Identifying and Checking the Nozzle Installation Kit Components
• Selecting and Marking the First Nozzle Location
• Determining and Marking the Second Nozzle Location
o
configuration.
• Installing the First Welding Boss
• Installing the First Nozzle
• Installing the Second Welding Boss and Nozzle
• Hot Tapping the Pipe
Model T9 Ultrasonic Flow Transducer Installation Guide 3
Chapter 2. Installing Pipe Nozzles
Nozzle
Top
Welding Boss
Side
Top
Jig
Side
Threaded Rod with Washer and Nut
2.2 Identifying and Checking the Nozzle Installation Kit Components
The nozzle kit consists of various components which you must identify and check as described in the following
sub-sections.
The Nozzle Installation Kit contains the materials listed below. Use Figure 2 to help identify each component.
• 2 Nozzles
• 2 Welding Bosses
• 1 Jig
• 1 Threaded Rod (1 in. diameter), washer and nut
IMPORTANT: You will need to supply eight
5
/8 in. 4.25 in. studs with two nuts each.
Figure 2: Components for Nozzle Installation Kit
4 Model T9 Ultrasonic Flow Transducer Installation Guide
Chapter 2. Installing Pipe Nozzles
10D
5D
D
Flow
End View
2.3 Selecting and Marking the First Nozzle Location
CAUTION! Correct nozzle alignment is critical to the successful operation of the flowmeter; therefore, all
marking, positioning and welding operations must be carried out with the utmost attention to
accuracy. Unless otherwise stated, dimensional positioning of the nozzles must be held to a
tolerance of 1/16 in. (1.6 mm) relative to each other and with respect to the pipe centerline. the
angular tolerance must be held to 1
All hole cutting in process piping must be performed using hot tapping equipment.
1. For optimum performance, you should select a location that has undisturbed straight run pipeline at least 10 pipe
diameters upstream and 5 pipe diameters downstream from the point of measurement. Undisturbed pipe means
avoiding sources of turbulence such as valves, flanges, elbows; avoiding swirl; and avoiding disturbed flow
profiles.
O
.
2. We recommend that you install the nozzles on a diameter as near as possible to the horizontal plane (i.e., 3 o’clock
and 9 o’clock) as shown below.
Model T9 Ultrasonic Flow Transducer Installation Guide 5
Chapter 2. Installing Pipe Nozzles
Side View
Side View
2.3 Selecting and Marking the First Nozzle Location (cont.)
3. At the 3 o’clock position, center punch the pipe to mark the position for the center of the first nozzle.
4. Spray this area with a marking dye product. Using a metal edge, scribe a vertical and a horizontal line (6 in. long)
that intersect at the center punch mark.
6 Model T9 Ultrasonic Flow Transducer Installation Guide
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