Baker Panametrics T8 User manual

panametrics.com BH046C21 EN E
Model T8
Ultrasonic Flow Transducer
Installation Guide

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Copyright 2023 Baker Hughes company.
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holders.
Model T8
Ultrasonic flow transducer
Installation guide
BH046C21 Rev. E
Sep 2023

ii
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iii
Preface
Services
Typographical Conventions
Note: These paragraphs provide information that provides a deeper understanding of the situation, but is not
essential to the proper completion of the instructions.
IMPORTANT: These paragraphs provide information that emphasizes instructions that are essential to proper setup
of the equipment. Failure to follow these instructions carefully may cause unreliable performance.
Safety Issues
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.
Panametrics provides customers with an experienced staff of customer support personnel
ready to respond to technical inquiries, as well as other remote and on-site support needs. To
complement our broad portfolio of industry-leading solutions, we offer several types of
flexible and scalable support services including: Training, Product Repairs, Service Agreements
and more.
Please visit https://www.bakerhughes.com/panametrics/panametrics-services for more
details.
CAUTION! This symbol indicates a risk of potential minor personal injury and/or severe damage to
the equipment, unless these instructions are followed carefully.
WARNING! This symbol indicates a risk of potential serious personal injury, unless these
instructions are followed carefully.
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.
Attention European Customers!To meet CE Mark requirements for all units intended for use in the EU,
all electrical cables must be installed as described in this manual.

Preface
iv
Working Area
Qualification of Personnel
Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.
Personal Safety Equipment
Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary
equipment. Examples include safety glasses, protective headgear, safety shoes, etc.
Unauthorized Operation
Make sure that unauthorized personnel cannot gain access to the operation of the equipment.
Environmental Compliance
Waste Electrical and Electronic Equipment (WEEE) Directive
Panametrics is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE) take-back initiative,
directive 2012/19/EU.
The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the
natural resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle
most of the materials of your end of 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.
EU Declaration of Conformity
The EU Declaration of Conformity (EU DoC) and other compliant documents can be downloaded from the Product
Support Portal.
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 this equipment.

Model T8 Installation Guide v
Contents
Chapter 1. Installation
1.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Transducer construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.3 Installing T8 transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3.1 Equipment needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3.2 Locating and welding the transducer ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3.3 Hot tapping the ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.4 Positioning the transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3.5 Attaching the hydraulic cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.3.6 Inserting the transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
1.3.7 Adjusting the safety alignment collar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
1.3.8 Removing the hydraulic cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
1.4 Resetting or storing the hydraulic cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Chapter 2. Aligning the transducers
2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.2 Preparing for transducer alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.3 Aligning the transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Chapter 3. Removing the transducers
3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
3.2 Attaching the hydraulic cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
3.3 Removing the transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
3.4 Disconnecting the hydraulic cylinder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Chapter 4. Specifications
4.1 T8 transducer physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.2 T8 transducer Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.3 Specific conditions of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Contents
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Model T8 Installation Guide 1
Chapter 1. Installation
Chapter 1. Installation
1.1 Introduction
The T8 Ultrasonic Flow Transducer is used exclusively with the Panametrics line of ultrasonic flowmeters. These
transducers measure the flow rate of sonically-conductive gases through pipes having diameters from 4 in. (100 mm)
to 36 in. (90 cm). Such measurements are typically independent of the pipe material.
1.2 Transducer construction
Each T8 transducer assembly (see Figure 1 below) consists of the following:
• A metallic body with a 1/2” NPT male thread for attaching an electrical junction box
• A body flange that is welded or machined to the transducer body
• A transducer with a piezoelectric element mounted on a wedge and wired to a BNC style electrical connector
• A BNC style electrical connector for use in connecting the transducer to the flowmeter
The T8 is available in various lengths from 12 in. (30 cm) to72 in. (180 cm).
Figure 1: T8 Transducer assembly

Chapter 1. Installation
2 Model T8 Installation Guide
1.3 Installing T8 transducers
The pressure mechanism is a piston-driven hydraulic pump used for inserting T8 transducers into pressurized
pipelines. To perform this procedure safely, you must follow all the instructions in this chapter very carefully.Fi
1.3.1 Equipment needed
To properly install the T8 transducers, you must provide the following items:
• Pipe marker
• Spiral-wound gaskets (6)
• Adjustable torque wrench with a 3.75-19 ft-lb (5-20 N-m) range and a socket drive
• Standard and deep sockets
• Hot-tapping mechanism (for use by qualified personnel only)
• Open-end wrench
• Oscilloscope
1.3.2 Locating and welding the transducer ports
To locate and weld the transducer ports, complete the following steps:
1. The variable H equals the distance between the center lines of the transducer ports (see Figure 2 on page 3). To
calculate the distance H, use the following equation:
where: ID = pipe inside diameter
tan=tangent of transducer head angle
U = transducer centerline offset (0.155 for ? = 30° or 0.067 for ? = 45°)
Example: To calculate the transducer port locations on a 30 in. (75 cm) pipe with a 0.40 in. (1 mm) wall thickness, using
a T8 transducer with a 30° head angle:
H = 2 * [(29,2 + 0,325) * tan 30° + 0,155] = 34.40 in.
2. For optimum performance, select a port location that has at least 20 pipe diameters of straight, undisturbed flow
upstream and 10 pipe diameters of straight, undisturbed flow downstream from the point of measurement.
Undisturbed flow means avoiding sources of turbulence such as valves, flanges, elbows; avoiding swirl; and
avoiding irregular flow profiles.
H 2 ID 0.325+  tanU+ =