GE ApexPro T9 User manual

GE
Measurement & Control Solutions Flow
916-080 Rev. B
July 2010
Model T9
Ultrasonic Flow Transducer
Installation Guide

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Technical content subject to change without notice.
Model T9
Ultrasonic Flow Transducer
Installation Guide
916-080 Rev. B
July 2010

ii
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Model T9 Ultrasonic Flow Transducer Installation Guide iii
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

Contents
iv Model T9 Ultrasonic Flow Transducer Installation Guide
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Model T9 Ultrasonic Flow Transducer Installation Guide v
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.

Preface
vi Model T9 Ultrasonic Flow Transducer Installation Guide
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 for take-back instructions and more information about
this initiative.

Model T9 Ultrasonic Flow Transducer Installation Guide 1
Chapter 1. Information
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.
The T9 transducer has a 180o head and is available in the following lengths: 11 in. (28 cm), 13 in. (33 cm) and 16 in.
(40 cm).
Figure 1: General T9 Transducer
Metallic Body
Transducer Head
BNC Connector
Optional Noise Dampening Fitting

Chapter 1. Information
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Model T9 Ultrasonic Flow Transducer Installation Guide 3
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 45oconfiguration.
IMPORTANT: This procedure only applies if you are using 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
•Installing the First Welding Boss
•Installing the First Nozzle
•Installing the Second Welding Boss and Nozzle
•Hot Tapping the Pipe

Chapter 2. Installing Pipe Nozzles
4Model T9 Ultrasonic Flow Transducer Installation Guide
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 5/8in.4.25 in. studs with two nuts each.
Figure 2: Components for Nozzle Installation Kit
Nozzle Top
Welding Boss Side
Top Jig Side
Threaded Rod with Washer and Nut

Model T9 Ultrasonic Flow Transducer Installation Guide 5
Chapter 2. Installing Pipe Nozzles
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 1O.
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.
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.
10D 5D
D
Flow
End View

Chapter 2. Installing Pipe Nozzles
6Model T9 Ultrasonic Flow Transducer Installation Guide
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.
Side View
Side View

Model T9 Ultrasonic Flow Transducer Installation Guide 7
Chapter 2. Installing Pipe Nozzles
2.4 Determining and Marking the Second Nozzle Location
1. The position for the second nozzle is a distance equal to one pipe diameter along the pipe and located on the
opposite side of the pipe (i.e., 180°around). Spray this area with a marking dye product.
2. Due to the possible variation in outside diameter of the pipe, measure the outside diameter of the pipe at four
locations between the nozzle centers. Calculate the average outside diameter based on these measurements.
3. Using a roll of polyester film (or equivalent), cut a strip of film at the width and length as follows:
IMPORTANT: Ensure that the sides of the film are cut parallel to each other.
•Width - equal to the average outside diameter calculated in Step 1 above.
•Length - equal to 4 times the outside diameter of the pipe.
D1 D2 D3 D4
Side View
Average
O.D.
4 X O.D.

Chapter 2. Installing Pipe Nozzles
8Model T9 Ultrasonic Flow Transducer Installation Guide
2.4 Determining and Marking the Second Nozzle Location (cont.)
4. Wrap the strip of film around the pipe with one edge running along the vertical scribe line at the first nozzle
location. Make sure the strip overlaps squarely around the pipe and mark the overlap position of the strip. This
equals the circumference of the pipe.
5. Remove the strip of film and fold it as shown below to determine the position which is diametrically opposite the
overlap position when the film is reapplied to the pipe.
6. Mark the outside of the fold for reference.
Side View
Overlap Mark
Overlap Mark Fold to Here
Mark the Edge

Model T9 Ultrasonic Flow Transducer Installation Guide 9
Chapter 2. Installing Pipe Nozzles
2.4 Determining and Marking the Second Nozzle Location (cont.)
7. Place the strip of film on the pipe again; this time, line up the overlap mark with the horizontal and vertical scribe
lines. Again, make sure you wrap the strip of film squarely around the pipe.
8. The new position of the center of the second nozzle is now identified as the intersection of the fold line and the
second edge of the strip of film. Center punch this location prior to removing the strip of film.
9. Remove the film.
10. Scribe vertical and horizontal lines (each 6 in. long) to intersect at the center-punch mark.
Fold Mark
Side View
Punch Here
Side View
Scribe Lines
Side View

Chapter 2. Installing Pipe Nozzles
10 Model T9 Ultrasonic Flow Transducer Installation Guide
2.5 Installing the First Welding Boss
1. Before welding the first boss, you must add another scribe line known as the oblique center line. The oblique center
line compensates for the slope or oblique of the boss. The oblique center line is offset from the true center (vertical)
scribe line marked earlier by a distance of “X,” which is dependent on the pipe outside diameter as follows:
where:
D = pipe outside diameter
d = welding boss outside diameter, 1.660 in. (4 cm)
Table 1 below shows values of X for various pipe sizes.
2. Scribe the oblique center line on the pipe at the prescribed distance from the true center line. The oblique center
line should be marked on the side of the true center line that is closer to the second nozzle location.
Table 1: X Values for Various Pipe Sizes
Pipe
X DimensionsNPS (DN) O.D.
6 in. (150 mm) 6.625 in. (17 cm) 0.106 in. (2.69 mm)
8 in. (200 mm) 8.625 in. (22 cm) 0.081 in. (2.06 mm)
10 in. (250 mm) 10.75 in. (27 cm) 0.064 in. (1.62 mm)
12 in. (300 mm) 12.75 in. (32 cm) 0.054 in. (1.37 mm)
14 in. (350 mm) 14.00 in. (35.5 cm) 0.049 in. (1.24 mm)
XD2 d2
sin 1– dDtan
-------------------------------------------–=
True Center Line Oblique Center Line
Side View

Model T9 Ultrasonic Flow Transducer Installation Guide 11
Chapter 2. Installing Pipe Nozzles
2.5 Installing the First Welding Boss (cont.)
3. Position the welding boss such that the four scribe lines on the welding boss are lined up with the horizontal scribe
mark and the oblique center line on the pipe. Make sure you orient the boss as shown below.
4. Clamp the boss in place using a pipe strap or equivalent so that it cannot move during tack welding.
5. Check the boss alignment, then tack weld the carbon steel boss to the pipe in each of the four grooves between the
boss scribe marks.
6. Remove the clamp and check the alignment again. If the boss is misaligned by 0.02 in. (0.5 mm) or more, remove
the boss, grind off the welds and reinstall.
Oblique Center Line
Top View
Side View
Scribe Mark

Chapter 2. Installing Pipe Nozzles
12 Model T9 Ultrasonic Flow Transducer Installation Guide
2.6 Installing the First Nozzle
IMPORTANT: It is essential that the nozzle is set up and fixed in position using the jig and 1-in. threaded rod provided,
prior to welding the nozzle.
1. Screw the threaded rod into boss that is welded onto the pipe. If necessary, remove the washer and nut from the
threaded rod.
2. Insert the pipe section of the jig into the pipe section of the nozzle and fasten using four studs and eight nuts (not
supplied).
Threaded Rod
Welded Boss
Jig
Nozzle
Studs &
Sets of Nuts