GE Sensing C-RL Operating Manual

Measurement & Control Flow

C-RL

Installation Guide

916-062 Rev. B

October 2014

C-RL

Ultrasonic Flow Transducer

Installation Guide

916-062 Rev. B October 2014

www.ge-mcs.com

Technical content subject to change without notice.

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C-RL Ultrasonic Flow Transducer Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Transducer Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3. Dampening Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4. Installing the C-RL Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4.1 Choosing an Installation Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.2 Obtaining the Transducer Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.3 Installing the V Series Clamping Fixtures and Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.3a Setting the Transducer Spacing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.3b Installing the Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.3c Preparing the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3d Applying the DMP-1 Dampening Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.3e Applying DMP-3 Compound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.3f Applying the Pipe Dampening Jacket - PDJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3g Mounting the Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.4 Installing the PI Fixture and Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.4a Tools and Equipment Needed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.4b Preparing the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.4c Surveying the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.4d Applying the Pipe Dampening Jacket - PDJ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4e Installing the First Mounting Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.4f Installing the Second Mounting Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.4g Mounting the Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.4h Installing DMP-1 Dampening Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.4i Applying DMP-3 Compound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.6 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

• Special Conditions for Safe Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

• EU / EEA Installation Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

• C-Rx Transducer Assembly Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

• Examples of Markings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installation Guide iii

Contents C-RL Ultrasonic Flow Transducer

iv Installation Guide

Preface

Information Paragraphs

Note: These paragraphs provide information that provides a deeper understanding of the situation, but is not

essential to the proper completion of the instructions.

IMPORTANT: These paragraphs provide information that emphasizes instructions that are essential to proper setup of

the equipment. Failure to follow these instructions carefully may cause unreliable performance.

CAUTION! This symbol indicates a risk of potential minor personal injury and/or severe damage to

the equipment, unless these instructions are followed carefully.

WARNING! This symbol indicates a risk of potential serious personal injury, unless these instructions

are followed carefully.

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.

WARNING! For installations in potentially hazardous areas, be sure to read the Certification and

Safety Statements document at the end of this manual before beginning the 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.

C-RL Installation Guide v

Preface

Qualification of Personnel

Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.

Personal Safety Equipment

Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary equipment. Examples include safety glasses, protective headgear, safety shoes, etc.

Unauthorized Operation

Make sure that unauthorized personnel cannot gain access to the operation of the equipment.

Environmental Compliance

Waste Electrical and Electronic Equipment (WEEE) Directive

GE Measurement & Control is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE) take-back initiative, directive 2012/19/EU.

The equipment that you bought has required the extraction and use of natural resources for its production. It may contain hazardous substances that could impact health and the environment.

In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle most of the materials of your end life equipment in a sound way.

The crossed-out wheeled bin symbol invites you to use those systems.

If you need more information on the collection, reuse and recycling systems, please contact your local or regional waste administration.

Visit http://www.ge-mcs.com/en/about-us/environmental-health-and-safety/1741-weee-req.html take-back instructions and more information about this initiative.

for

vi C-RL Installation Guide

1. Introduction

BNC Connector

5/8”-24 UNEF Thread

3/4” NPT Thread

Spanner Wrench Hole

Set Screw

SS Housing

Plastic Wedge

The C-RL clamp-on ultrasonic flow transducers are used exclusively with the GE Measurement & Control line of ultrasonic flowmeters. These transducers are used to measure the flow of various gases through pipes having diameters from 3/4 in. (20 mm) to 30 in. (750 mm). Such measurements are independent of the pipe material. This document provides details on the following topics:

• Transducer Construction

• Dampening Material

• Installation

• Maintenance

• Specifications

2. Transducer Construction

A transducer assembly includes a 316 stainless housing with a plastic wedge attached and a BNC-type electrical connector. The transducer features integral 3/4” NPT-M threads for mounting a junction box and integral 5/8-24 threads for mounting a submersible connector if desired (see Figure 1 below).

Figure 1: Transducer Assembly (ref dwg 752-163)

C-RL Installation Guide 1

3. Dampening Material

GE Measurement & Control strongly recommends applying DMP dampening material in all permanent clamp-on applications to help eliminate noise. The following dampening materials are available:

• The DMP-1 self-adhesive sheet for applications up to 200°F (93°C). The material comes as two 9.5-in. (24 cm)

wide sheets cut in sufficient length for your application. (Length installation site.)

twice the circumference of the pipe at the

• The DMP-3 is a compound for applications over 150°F (65

knife.

C). The compound is applied to the pipe with a putty

• Pipe Dampening Jacket (PDJ) is a sheath/jacket with DMP-3 pre-applied to the inside and is also used for

applications over 150 300 mm) in diameter.

At a minimum, you should consider applying dampening material if you have any of the following conditions:

F (65oC). The PDJ is available for pipes 4”, 6”, 8”, 10” and 12” (100, 150, 200, 250 and

• The distance from the nearest butt weld or pipe flange is less than 10 ft (3 m).

• The pipe size is under 16 in. (400 mm) diameter and the gas pressure is 200 psig (1,378 kPa) or lower.

• The pipe is deformed (non-circular).

• The pipe is old, with a history of scaling or rust.

• The pipe experiences constant condensation on the outside.

Note: Consult a GE flowmeter applications engineer or sales engineer if you have any questions regarding

dampening material.

Details for properly installing the dampening material are discussed in the installation instructions.

2 C-RL Installation Guide

4. Installing the C-RL Transducers

GE Measurement & Control offers the following fixtures to suit your applications needs:

• V1 clamping fixture

• V4 clamping fixture

• V8 clamping fixture

• V12 clamping fixture

• PI clamping fixture

Figures 2 (below) and 3 (on the next page) show the V1, V4, V8, V12 and PI fixture assemblies. Each type of transducer and fixture requires the installation of dampening material for acoustic isolation.

Complete the steps in the following sections to position and install the transducers, fixtures and dampening material.

Figure 2: The V12 Fixture

C-RL Installation Guide 3

V8 Fixture

V4 Fixture

PI Fixture

V1 Fixture

4. Installing the C-RL Transducers (cont.)

Figure 3: The V1, V4, V8 and PI Fixtures

4 C-RL Installation Guide

4.1 Choosing an Installation Location

Transducer

Pipe

Signal Path

End View

1. Locate the transducer measurement point at least 3 ft (1 m) from any butt welds or flanges, ideally in the center of a 20 ft (6 m) length of straight run of pipe. Keep appropriate clearance on either side of the pipe for easy transducer installation:

• 6 in. (15 cm) if you are not using a junction box, or

• 9 in. (23 cm) if you are using a junction box.

Note: To guarantee the specified accuracy of the flowmeter there is no substitute for straight run and fully-developed

flow profile. However, if straight run is not available, the transducer location should be in a position such that the acoustic signal travels through the full distribution of the under-developed flow profile for best repeatability.

2. Place the transducers as close as possible to the horizontal plane. Locate the transducers on opposite sides of the

pipe 180

pipe.

apart, ideally at the 3 and 9 o’clock positions. Do not place transducers on the top or bottom of the

C-RL Installation Guide 5

4.2 Obtaining the Transducer Spacing

Enter the required information into the flowmeter’s user program (Pipe Parameters menu) to determine the transducer spacing. Some applications may require you to conduct a pipe survey before you can obtain the transducer spacing. Refer to Obtaining the Transducer Spacing section of your User’s Manual or Startup Guide for more details.

Proceed to the appropriate section to install the transducers and fixtures:

• Installing the V Series Clamping Fixtures on the next page.

• Installing the PI Fixture and Transducers on page 24.

IMPORTANT: To maintain ATEX certification, the transducer face must be protected against impact. This is provided by

properly installing the transducer into the clamping fixture. All care must be provided during installation to ensure all protection is afforded.

6 C-RL Installation Guide

4.3 Installing the V Series Clamping Fixtures and Transducers

Installing the V Series clamping fixture and transducers requires the following steps:

• Setting the Transducer Spacing

• Installing the Fixture

• Preparing the Pipe

• Applying the Dampening Material

• Mounting the Transducers

Refer to the following section to properly prepare for installation

Tools and Equipment Needed

Installing the fixture and transducers requires various tools. You will also need additional tools to apply the dampening material. Refer to Table 1 below for a complete list of everything you will need.

Table 1: Tools for V Series Fixture Installation

Fixture and Transducers

• straight edge ruler/scale

• permanent marker

• sandpaper

• file

• emery cloth

• ultrasonic thickness gage

• tape measure

• dry towel or rag

• thread sealant (for junction boxes only)

• 7/16 in. crescent/box wrench or 4 in. adjustable wrench

• 1 in. crescent/box wrench or 10 in. adjustable wrench

• other safety equipment suitable for your application

DMP-1 DMP-3 PDJ

• utility knife • gloves

• spatula or putty

knife (to remove access dampening compound)

• 7/16 in. crescent/

box wrench or 4 in. adjustable wrench

C-RL Installation Guide 7

Insert in 4 places

Top View

Zero Points

Measuring Scales

Set at 1 in. (2.5 cm) using this edge of block

Set Screw

4.3a Setting the Transducer Spacing

1. If necessary, assemble the fixture as shown below. Make sure the zero points on each ruler are at the same end of the fixture as shown below.

2. Using a ruler (or the ruler printed on the fixture), set one of the mounting blocks at least 1 in. (2.5 cm) from the edge of the fixture. To move the block, loosen the set screw, slide the block to the desired location and tighten the set screw. Use the edge of the block shown below as the setting point.

Zero Point on

Mounting Block Set at 1 in. (2.5 cm)

Top View

8 C-RL Installation Guide

4.3a Setting the Transducer Spacing (cont.)

Top View

Set second block using this edge

Zero Point on Measuring Scales

3. Slide the other mounting block to the calculated spacing plus 1 in. (2.5 cm). For example:

a. Spacing for the first mounting block = 1 in. (2.5 cm)

b. Spacing as calculated by the flowmeter = 0.5 in. (12.5 mm)

c. Second mounting block final location = 1 in. + 0.5 in. = 1.5 in. (2.5 cm + 1.25 cm = 3.75 cm)

The overall spacing between blocks should be left edge to left edge, or right edge to right edge.

Note: If possible, the second block should also be set at least 1 in.(2.5 cm) from the edge of the fixture.

C-RL Installation Guide 9

Top View

Remove 4 places

4.3b Installing the Fixture

During this procedure you will be required to place the fixture and transducers on the pipe more than once, and in some cases, as many as 3 times. The fixture and transducers are placed on the pipe temporarily for two purposes:

• to mark where the fixture and transducers make contact with the pipe so those sections can be cleaned; and,

• as a reference for placing the dampening material.

Use the steps below to begin installation:

1. Remove any pipe insulation from the installation site.

Note: Make sure you clear an area that is large enough for the transducers and dampening material installation.

2. Disassemble the fixture by removing the four nuts from the threaded rods and pulling apart the two halves of the fixture.

Note: Make note of the assembled fixture to make sure you reassemble it the same way. Otherwise, the transducer

spacing will be incorrect.

10 C-RL Installation Guide

4.3b Installing the Fixture (cont.)

Top View

Mating Half

Top View

Zero on Each Measuring Scales

3. Position the clamping fixture as close as possible to the horizontal plane. The fixture should be positioned so the

transducers will be located on the opposite sides of the pipe 180

not place fixture on the pipe so the transducers are the top or bottom of the pipe

Note: Make sure you reassemble the fixture properly to ensure the correct transducer spacing. If the fixture has rulers

on the rails, make sure the zero points on each ruler are at the same end of the fixture as shown below.

apart, ideally at the 3 and 9 o’clock positions. Do

C-RL Installation Guide 11

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