GE CModel C-RS Installation Manual
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GE CModel C-RS Installation Manual

GE CModel C-RS Installation Manual

Ultrasonic flow transducer
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GE
Measurement & Control Solutions
Flow
CModel C-RS
Ultrasonic Flow Transducer
Installation Guide
916-077 Rev. C
July 2010

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  • Page 1 Measurement & Control Solutions Flow CModel C-RS Ultrasonic Flow Transducer Installation Guide 916-077 Rev. C July 2010...
  • Page 3 Model C-RS Ultrasonic Flow Transducer Installation Guide 916-077 Rev. C July 2010 GESensingInspection.com ©2010 General Electric Company. All rights reserved. Technical content subject to change without notice.
  • Page 4 [no content intended for this page]...

  • Page 5: Table Of Contents

    Contents Introduction ................... . 1 Transducer Construction.
  • Page 6 Contents [no content intended for this page] C-RS Ultrasonic Flow Transducer Installation Guide...
  • Page 7 Preface Information Paragraphs • paragraphs provide information that provides a deeper understanding of the situation, but is not essential to Note the proper completion of the instructions. • paragraphs provide information that emphasizes instructions that are essential to proper setup of the Important equipment.
  • Page 8 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.

  • Page 9: Introduction

    1. Introduction The Model C-RS clamp-on ultrasonic flow transducer for liquids is used exclusively with the GE line of ultrasonic flowmeters. These transducers measure the flow rate of sonically-conductive liquids through pipes having diameters from 2 in. (5 cm) to over 300 in. (7.6 m). Such measurements are typically independent of the pipe material.

  • Page 10: Couplants

    The factory provides couplants for both permanent and temporary use as well as for high- and low-temperature applications. For long-term installations, make sure the couplant does not dry or run out. Standard couplants supplied by GE are listed in Table 1. Table 1: Couplants PART NO.

  • Page 11: Choosing An Installation Location

    4.1 Choosing an Installation Location To select a suitable transducer location, complete the following steps: 1. Locate the transducer measurement point at least 3 ft (1 m) from any butt welds or flanges. Ideally the location would be in the center of a 20 ft (6 m) section of straight pipe. Make sure there is sufficient clearance on both sides of the pipe for easy transducer installation: •...

  • Page 12: Preparing The Pipe

    4.2 Preparing the Pipe To prepare the pipe for transducer installation, complete the following steps: 1. Remove any rust and paint from an area 2 in. (5 cm) wide by 4 in. (10 cm) long on one side of the pipe. 2.
  • Page 13 4.4 Determining the Number of Traverses (cont.) Double Traverse (“V” Method) Transducers Ultrasonic Signal Path TOP VIEW Single Traverse (“Z” Method) Transducer Transducer TOP VIEW Figure 3: Double- and Single-Traverse Installations C-RS Ultrasonic Flow Transducer Installation Guide...

  • Page 14: Installing The Universal Clamping Fixture And Transducers - Ucf

    (5 to 120 cm) (5 to 60 cm) Note: The mounting chain or strap provided by GE with your UCF is the one best suited for your application. 5.2 Identifying the UCF Components The UCF includes the following components (see Figure 4 on page 7): •...
  • Page 15 5.2 Identifying the UCF Components (cont.) Side View End View Pressure Bolt Locking Nut Thumbscrew Short Block 1 Screw Hook (fixed and adjustable) Chain Long Block 2 Screw Hooks Slide Track Example with Short Blocks Figure 4: Components of the UCF C-RS Ultrasonic Flow Transducer Installation Guide...

  • Page 16: The Double-Traverse Method -Ucf

    5.3 The Double-Traverse Method -UCF Note: The instructions in this section can also be used for a multiple-traverse method. However, you must use an EVEN number of traverses. Consult the factory for details. There are three advantages to using the double-traverse method: •...
  • Page 17 5.3 The Double-Traverse Method -UCF (cont.) 4. Using the attached ruler, move the blocks so they are a distance S from each other. As shown below, use either the pressure bolts or the ends of the blocks as reference points. Centerline Centerline S = Spacing...
  • Page 18 5.3 The Double-Traverse Method -UCF (cont.) 6. Wrap the chain around the pipe and fasten the chain on the “J” screw hook on the opposite side of the block. Do this for both blocks. Top View 7. Using the screw hook on the blocks, tighten the chains until the fixture is secured snugly to the side of the pipe. Note: Make sure the chains are perpendicular to the clamping fixture and are not twisted.

  • Page 19: The Single-Traverse Method - Ucf

    5.4 The Single-Traverse Method - UCF Note: The instructions in this section can also be used for a multiple-traverse method. However, you must use an ODD number of traverses. Consult the factory for details. Note: You will need both the short block assembly and the long block for a single-traverse installation. You will also need a marker or scribe to mark the transducer locations on the pipe To install a single-traverse UCF, complete the following steps: 1.
  • Page 20 5.4 The Single-Traverse Method -UCF (cont.) 5. Make two marks on the line at the top of the pipe. The distance between these two marks must equal the calculated transducer spacing S. Spacing Mark Mark Side View 6. From one of the marks, measure around the circumference of the pipe a distance equal to 1/4 of the pipe circumference.
  • Page 21 5.4 The Single-Traverse Method - UCF (cont.) 7. From the second mark on the top of the pipe, measure in the opposite direction around the pipe for 1/4 of the circumference. Make another crossmark at this point. Spacing Crossmark Side View 8.
  • Page 22 5.4 The Single-Traverse Method -UCF (cont.) 9. Use the wing nuts to tighten the chains on the long block until it is secured snugly to the pipe. Note: Make sure the chains are perpendicular to the clamping fixture and are not twisted. If the chains are slanted, the fixture may move and this could change the final transducer spacing.
  • Page 23 5.4 The Single-Traverse Method - UCF (cont.) 11. Wrap the chain on one small block around the pipe, and fasten the chain to the screw hook on the opposite side of the block. Repeat this for the second short block. Note: Make sure the chains on both blocks are on the same side of the fixture and are on the opposite side from the ruler.
  • Page 24 5.4 The Single-Traverse Method - UCF (cont.) Figure 6 shows a completed single-traverse installation without the transducers. Side View Top View Figure 6: Single-Traverse Clamping Fixture w/o Transducers C-RS Ultrasonic Flow Transducer Installation Guide...

  • Page 25: Mounting Transducers Into The Ucf

    5.5 Mounting Transducers into the UCF To maintain ATEX certification the transducer face must be protected against impact. Protection is IMPORTANT: provided by properly installing the transducer into the clamping fixture. Care must be taken during installation to ensure that protection is provided. The last installation step is mounting the transducers into the clamping fixture.
  • Page 26 For additional resistance to vibration a thread lock compound or a stainless steel washer and lock washer may also be used. These items can be ordered from GE by requesting a "special" clamping fixture and specifying either the thread lock or the washers.
  • Page 27 5.5 Mounting Transducers into the UCF (cont.) 7. Repeat Steps 1 to 6 to mount the other transducer into the remaining block. 8. Secure the short block to the rail by tightening the thumbscrew. See typical completed UCF installations in Figure 7. Note: If you have mounted the transducers into the UCF properly, the two transducer cable connectors will face away from each other as shown below.

  • Page 28: Installing The General Clamping Fixture And Transducers - Gcf

    6. Installing the General Clamping Fixture and Transducers - GCF The General Clamping Fixture (GCF) acts as a permanent transducer holder. The fixture has two blocks (see Figure 8) that are used for both double- and single-traverse methods. Steel straps secure the blocks to the pipe for a permanent installation.
  • Page 29 6.1 The Double-Traverse Method - GCF (cont.) Top of Pipe Line Side View 5. Make two marks on the line at the top of the pipe. The distance between these two marks must equal the calculated transducer spacing S. Spacing Mark Mark Side View...
  • Page 30 6.1 The Double-Traverse Method - GCF (cont.) 7. Center one of the blocks over one of the crossmarks on the pipe. Align the block so that the pressure bolt is over the center of the mark. Secure the block by wrapping the two straps around the block and the pipe and tightening them. Make sure the turnbuckles are at least 1/2 pipe diameter away from the block.
  • Page 31 6.1 The Double-Traverse Method - GCF (cont.) Figure 9 shows a double-traverse installation without the transducers. Top View End View Figure 9: Double-Traverse GCF Installation w/o Transducers C-RS Ultrasonic Flow Transducer Installation Guide...

  • Page 32: The Single-Traverse Method - Gcf

    6.2 The Single-Traverse Method - GCF Note: The instructions in this section can also be used for a multiple-traverse method. However, you must use an ODD number of traverses. Consult the factory for details. You will need a level and a marker or scribe to locate and mark the transducer locations on the pipe. To install a single-traverse GCF, complete the following steps: 1.
  • Page 33 6.2 The Single-Traverse Method -GCF (cont.) 6. From one of the marks, measure around the circumference of the pipe a distance equal to 1/4 of the pipe circumference. Make a crossmark at this point. Top View 7. From the second mark on the top of the pipe, measure in the opposite direction around the pipe for 1/4 of the circumference.
  • Page 34 6.2 The Single-Traverse Method -GCF (cont.) 8. Center one of the blocks over one of the crossmarks on the pipe. Align the block so that the pressure bolt is over the center of the crossmark. Secure the block by wrapping two straps around the block and the pipe and tightening them.
  • Page 35 6.2 The Single-Traverse Method -GCF (cont.) Figure 10 shows a single-traverse installation without the transducers. Top View End View Figure 10: Single-Traverse GCF Installation w/o Transducers C-RS Ultrasonic Flow Transducer Installation Guide...

  • Page 36: Mounting Transducers Into The Gcf

    6.3 Mounting Transducers into the GCF To maintain ATEX certification the transducer face must be protected against impact. Protection is IMPORTANT: provided by properly installing the transducer into the clamping fixture. Care must be taken during installation to ensure that protection is provided. The last installation step is mounting the transducers into the clamping fixture.
  • Page 37 6.3 Mounting Transducers into the GCF (cont.) 3. On one of the transducers, apply a thin bead of couplant down the center of its face approximately the size of a toothpaste bead. Note: To prevent the loss of couplant, do not slide the transducer with couplant along the surface of the pipe when mounting.
  • Page 38 For additional resistance to vibration a thread lock compound or a stainless steel washer and lock washer may also be used. These items can be ordered from GE by requesting a "special" clamping fixture and specifying either the thread lock or the washers.

  • Page 39: Installing The Magnetic Clamping Fixture And Transducers - Mcf

    6.4 Installing the Magnetic Clamping Fixture and Transducers - MCF The Magnetic Clamping Fixture (MCF) is used to fasten transducers to the pipe at the proper spacing without chains or straps. The MCF can be used only on ferrous pipe materials. Different fixtures are used for the single- and double-traverse installations.

  • Page 40: The Double-Traverse Method - Mcf

    6.6 The Double-Traverse Method - MCF The double-traverse MCF consists of two adjustable blocks which are connected by two parallel rods. One of the rods acts as a scale or ruler to help you properly space the transducers. Also included in the fixture are two adjustable transducer blocks.

  • Page 41: The Double-Traverse Method - Mcf

    6.7 The Double-Traverse Method - MCF 5. Locate the magnetic blocks at least 4 in. (10 cm) away from the transducer blocks. This will ensure that there is enough clearance to mount the transducers in the blocks. Move the adjustable magnetic blocks in the same manner as the transducer blocks.

  • Page 42: The Single-Traverse Method - Mcf

    6.8 The Single-Traverse Method - MCF The single-traverse MCF consists of two sections. Each section includes two magnetic blocks which are connected by two parallel rods. In addition, a sliding transducer block, which is used to hold the transducer in proper alignment, is mounted on the two rods.
  • Page 43 6.8 The Single-Traverse Method - MCF (cont.) 5. Make two marks on the line at the top of the pipe. The distance between these two marks must equal the calculated transducer spacing S. Spacing Mark Mark Side View 6. From one of the marks, measure around the circumference of the pipe a distance equal to 1/4 of the pipe circumference.
  • Page 44 6.8 The Single-Traverse Method - MCF (cont.) 7. From the second mark on the top of the pipe, measure in the opposite direction around the pipe for 1/4 of the circumference. Make another crossmark at this point. 8. On one of the fixture sections, position the transducer block anywhere along the rods. Be sure to leave enough room on both sides to easily insert the transducers.
  • Page 45 6.8 The Single-Traverse Method - MCF (cont.) 10. Turn the switches on both magnets to the ON position. 11. Repeat steps 9 and 10 to mount the other fixture section on the opposite side of the pipe. Top View 12. If provided, secure the optional safety chain. The safety chain prevents the fixture from falling off the pipe if the magnets fail to hold.

  • Page 46: Mounting Transducers Into The Mcf

    6.9 Mounting Transducers into the MCF To maintain ATEX certification the transducer face must be protected against impact. Protection is IMPORTANT: provided by properly installing the transducer into the clamping fixture. Care must be taken during installation to ensure that protection is provided. The last installation step is mounting the transducers into the clamping fixture.
  • Page 47 6.9 Mounting Transducers into the MCF (cont.) 3. On one of the transducers, apply a thin bead of couplant down the center of its face approximately the size of a toothpaste bead. Note: To prevent the loss of couplant, do not slide the transducer with couplant along the surface of the pipe when mounting.
  • Page 48 For additional resistance to vibration a thread lock compound or a stainless steel washer and lock washer may also be used. These items can be ordered from GE by requesting a "special" clamping fixture and specifying either the thread lock or the washers.
  • Page 49 See typical completed MCF installations in Figure 13 below. WARNING! If your fixture is installed at an elevated location, GE recommends securing the fixture with the optional safety chain or a tether/leash to prevent injury if the fixture falls off the pipe.

  • Page 50: Maintaining The C-Rs Transducers

    Good and bad limits are listed in the Verify every 12 months flowmeter User’s Manual. in other areas. Dampening The expected life is 25 years. Consult GE for additional No cleaning is Material information if needed. required. Clamping...

  • Page 51: Specifications

    6.11 Specifications Table 4: C-RS Transducer Specifications Transducer # Parameter Intended Uses Large pipes Mid-size pipes Small pipes; Ductile iron pipes High performance High performance Lined pipes Two-phase liquid High performance Installation Type Clamp-on for liquid applications Material 316 Stainless Steel or plastic 2”...
  • Page 52 [no content intended for this page] C-RS Ultrasonic Flow Transducer Installation Guide...
  • Page 53 Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument, at the sole discretion of GE Sensing. Fuses and batteries are specifically excluded from any liability. This warranty is effective from the date of delivery to the original purchaser. If GE Sensing determines that the equipment was defective, the warranty period is: •...
  • Page 54 AUTHORIZATION NUMBER (RAN), and shipping instructions for the return of the instrument to a service center will be provided. 2. If GE Sensing 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.
  • Page 55 DECLARATION Sensing CONFORMITY DOC-0029, Rev. A GE Sensing 1100 Technology Park Drive Billerica, MA 01821 declare under our sole responsibility that the Models C-RL, C-RS, C-RV and C-RW Clamp-On Ultrasonic Flow Transducers to which this declaration relates, are in conformity with the following standards: •...
  • Page 58 Customer Support Centers U.S.A. The Boston Center 1100 Technology Park Drive Billerica, MA 01821 U.S.A. Tel: 800 833 9438 (toll-free) 978 437 1000 E-mail: sensing@ge.com Ireland Sensing House Shannon Free Zone East Shannon, County Clare Ireland Tel: +353 (0)61 470291 E-mail: gesensingsnnservices@ge.com An ISO 9001:2000 Certified Company www.gesensinginspection.com/en/about_us/quality.html...

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