C-RS Ultrasonic Flow Transducer
Contents
1. End View Figure 9 A Single Traverse GCF Installation without Transducers 28 Installing C RS Transducers April 2004 Mounting Transducers into the GCF The last step of installation is mounting the transducers into the clamping fixture C RS transducers are manufactured with a dimple on top of the transducer body In addition there are scribe marks on each side 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 taken during installation to ensure all protection is afforded Procedure for Mounting Transducers To mount the transducers into the GCF use the following steps 1 Apply a thread sealant to the transducer threads A sealant is not required within the US however a sealant must be used in European Communities 2 Before mounting the transducers thread the junction box onto the end of the transducer with the BNC connector Ensure that at least five full threads are engaged Make sure to orient the cover of the junction box so it is accessible to make cable connections once the box is installed 3 Take one of the transducers and apply a thin bead of couplant down the center of its face approximately the size of a toothpaste bead IMPORTANT To prevent the loss of couplant do not slide the transducer2. 29 Installing the Magnetic Clamping Fixture and Transducers MCF 32 Identifying the MCF Components 2 22 san NN MUOG a KN Na a Suns 32 The Double Traverse Method MCF 33 The Single Traverse Method MCF Haas san aa a Ne desire 36 Mounting Transducers into the MCF 40 Maintaining the C RS Transducers 44 Speeifieaions aed cee awed E eee ie dala pew La ee ered es 45 ii April 2004 Warranty Return Policy Each instrument manufactured by GE Panametrics is warranted to be free from defects in material and workmanship Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument at the sole discretion of GE Panametrics Fuses and batteries are specifically excluded from any liability This warranty is effective from the date of delivery to the original purchaser If GE Panametrics determines that the equipment was defective the warranty period is one year for general electronic failures of the instrument one year for mechanical failures of the sensor If GE Panametrics determines that the equipment was damaged by misuse improper installation the use of unauthorized replacement parts or operating conditions outside the guidelines specified by GE Panametrics the repairs are not covered under this warranty The warr
3. 7 Repeat Steps 1 to 6 to mount the other transducer in the remaining block See Figure 10 on the next page for completed installations 30 Installing C RS Transducers April 2004 Mounting Transducers IWARNING into the GCF cont Before performing the next step make sure power to the flowmeter electronics has been disconnected 8 Make transducer cable connections as described in the Installation chapter of the Startup Guide Double Traverse Installation Top View Single Traverse Installation Top View Figure 10 Completed GCF Installations with Transducers Note If you have mounted the transducers into GCF properly the two transducer cable connectors will face away from each other as shown in the above figure Installing C RS Transducers 31 April 2004 Installing the Magnetic Clamping Fixture and Transducers MCF Identifying the MCF Components The Magnetic Clamping Fixture MCF is used to fasten transducers to the pipe at the proper spacing without chains or straps The MCF is used on ferrous pip
4. GE Panametrics C RS Ultrasonic Flow Transducer Installation Guide La April 2004 Process Control Instruments C RS Ultrasonic Flow Transducer Installation Guide 916 077A GE Panametrics April 2004 ees Table of Contents Introduetion see ee bere ee bee tae ha be a an Du ee las eek 1 Transducer Consttction se ea ae a ana oes 1 ROU AIG ig DARA a konsa a pa Rd a En GANG de 2 Preparing for Installation a aaa a AY EN a eu ee 3 Choosing an Installation Location 2h she a BAG be AG hawa Le ea 3 Preparing the Pipe i245 i 6 paa hh erase ee aa sah ee 4 Obtaining the Transducer Spacing sa aa a ee GD 5 Determining the Number of Traverses 5 Installing the Universal Clamping Fixture and Transducers UCF 7 Verity Fixture Length toi ae an de alk a aa GA na er pa Ad Patera BE de 7 Identifying the UCF Components 7 The Double Traverse Method UCF 9 The Single Traverse Method UCF 12 Mounting Transducers into the UCF 17 Installing the General Clamping Fixture and Transducers GCF 21 The Double Traverse Method GCF 21 The Single Traverse Method GER ea a ne ee nie 25 Mounting Transducers into the GCF
5. mitgelieferte Handhabungssysteme tragen keine CE Kennzeichnung gem der Druckger te Richtlinie da sie in bereinstimmung mit Artikel 3 Absatz 3 gute Ingenieurpraxis der Druckger te Richtlinie 97 23 EG f r DN lt 25 geliefert werden Shannon July 1 2003 Ki Mr James Gibson GENERALDIREKTOR lt LS EN ISO 9002 TUV ESSEN Shannon ISO 9001 U S CERT DOC Rev G1 5 28 02 GE Panametric We GE Panametrics 221 Crescent Street Suite 1 Waltham MA 02453 U S A as the manufacturer declare under our sole responsibility that the product Type CRS Ultrasonic Flow Transducer to which this document relates in accordance with the provisions of ATEX Directive 94 9 EC Annex II meets the following specifications C ll 2 GD EEx md IIC T6 1180 KEMA02ATEX2337X T80 C 40 C to 75 C Furthermore the following additional requirements and specifications apply to the product e Having been designed in accordance with EN 50014 EN 50018 EN 50281 and EN 50028 the product meets the fault tolerance requirements of electrical apparatus for categories d and m e The product is an electrical apparatus and must be installed in the hazardous area in accordance with the requirements of the EC Type Examination Certificate The installation must be carried out in accordance with all appropriate international national and local standard codes and practices and site regulations for flameproof apparatus and in accord
6. April 2004 Obtaining the Transducer Spacing Determining the Number of Traverses Before installing the clamping fixture you must obtain the transducer spacing from the flowmeter You will need to know the transducer spacing later in this procedure To obtain the spacing you must enter the measured OD and the pipe wall thickness into the flowmeter s user program Pipe Parameters to determine the transducer spacing Refer to your User s Manual or Startup Guide for more details The next step in installation is determine the number of traverses The transducers can be mounted using one of two methods see Figure 2 on the next page e Double traverse method V method transducers are mounted on the same side of the pipe and the ultrasonic signal is bounced from one transducer to the other off the opposite pipe wall e Single traverse method Z method transducers are mounted diagonally across from each other The ultrasonic signal is transmitted directly from one transducer to the other across the pipe If the pipe diameter is 4 to 20 in you should always try the double traverse method first since it easier to install and yields greater accuracy Otherwise the single traverse method is best for pipes with the following e diameters 20 in or greater poor inside surface conditions highly attenuating fluid Note You may want to try both configurations to see which yields more accurate results
7. F Temporary 20 to 60 C CPL 4 Special As Required Difficult Applications CPL 7 Epoxy 14 to 122 F Permanent 10 to 50 C CPL 8 Solid Sheet 40 to 446 F Permanent 40 to 230 C Installations involving hotter or colder temperatures than listed above may require special couplants Consult GE Panametrics for these applications Installing C RS Transducers April 2004 Preparing for Before the clamping fixture and transducers can be properly installed Installation you must do the following e Choose an Installation Location e Prepare the Pipe e Obtain the Transducer Spacing Determine the Number of Traverses Caution A flowmeter s accuracy and performance depends on the location spacing and alignment of the transducers The transducer spacing is unique to your installation Choosing an Installation 1 Locate the transducer measurement point at least 3 ft 1 m or Location more 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 e Gin 15 cm if you are not using a junction box or e Qin 22 5 cm if you are using a junction box Note To guarantee the specified accuracy of the flowmeter there is no substitute for a straight run pipe and fully developed flow profile However if straight run is not available the transducer location should be i
8. Proceed to one of the following sections to properly install your fixture and transducers e Installing the Universal clamping fixture and transducers page 7 e Installing the General clamping fixture permanent installation and transducers page 21 Installing the Magnetic clamping fixture and transducers page 32 Installing C RS Transducers April 2004 Determining the Number of Traverses cont Double Traverse V Method Transducers Fi Ultrasonic Signal Path TOP VIEW Single Traverse Z Method Transducer Ng ng Transducer TOP VIEW Figure 2 Double and Single Traverse Installations 6 Installing C RS Transducers April 2004 Installing the Universal Clamping Fixture and Transducers UCF Verify Fixture Length Identifying the UCF Components The Universal Clamping Fixture UCF acts as a spacing device and a transducer holder The UCF is available in two lengths and consists of a number of components Before you begin installation you should verify your fixture is the correct length and familiarize yourself with the fixture components 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 taken during installation to ensure all protection is afforded Make sure you note the following restrictions for yo
9. View 7 From the other mark go in the opposite direction around the pipe for one quarter the circumference and make another crossmark Spacing T Crossmark 4 a Side View 26 Installing C RS Transducers April 2004 The Single Traverse 8 Center one of the blocks over one of the crossmarks on the pipe Method GCF cont 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 pipe and tightening them Make sure the turnbuckles are at least 1 2 pipe diameter away from the block Turnbuckles Top View 9 Repeat Step 8 to install the other block over the other punch mark Note Make sure both straps are perpendicular to the bottom of the block Ifthe straps are slanted the slack will cause the block to slide The slack may also change the transducer spacing after the transducers are mounted Top View Installing C RS Transducers 27 April 2004 o ana The Single Traverse Figure 9 below shows a single traverse installation without Method GCF cont transducers Proceed to Mounting Transducers into the GCF on the next page
10. the location you have chosen for the installation has at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameters downstream of the measurement point 3 Prepare the pipe where you intend to place the clamping fixture by making sure it is clean and free of loose material Sanding though usually not required may be necessary to take off any high spots When sanding be careful to preserve the original curvature of the pipe Installing C RS Transducers 9 April 2004 The Double Traverse 4 Method UCF cont Using the attached ruler move the blocks so they are a distance S from each other Use the pressure bolt or the ends of the blocks as reference points Centerline Centerline m S Spacing le S Spacing T S Spacing Select one method to set the spacing Position the clamping fixture along the horizontal plane of the pipe but not on the top or bottom Make sure the chains on both blocks are on the same side of the fixture and are opposite the ruler Side View 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 10 Installing C RS Transducers April 2004 The Double Traverse 7 Using the screw hook on the blocks tighten the chains until the Method UCF cont fixture is secured snugly to the side of the pipe Note Make sure the chains are perpendicular to the clamp
11. to orient the cover of the junction box so it is accessible to make cable connections once the box is installed 3 Take one of the transducers and 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 Installing C RS Transducers 17 April 2004 es Mounting Transducers 4 Place the transducers into the blocks Make sure the junction box into the UCF cont faces away from the block as shown below Note f the transducer cables are already connected you must determine the upstream and downstream directions of the pipe and place the transducers into the appropriate blocks Top View 5 Use the pressure bolt to secure the transducer in place The pressure bolt should fit into the dimple Hand tighten enough to hold the transducer in place Do not overtighten so that the fixture lifts off the pipe Top View 18 Installing C RS Transducers April 2004 Mounting Transducers into the UCF cont Tighten the locking nut on the pressure bolt see Figure 3 on page 8 IMPORTANT When using the UCF in a pipe location with possible mechanical vibration the locking nut must be used to secure the position of the pressure bolt on the transducer after the bolt has been hand tightened into t
12. 018 2000 EN 50028 1987 EN 50281 1 1 1998 II 2 GD EEx md IIC T6 CRL CRS CRV KEMA02ATEX2337 X CRW KEMA03ARTEX1540 X KEMA Ultrechtseweg 310 Arnhem The Netherlands e EN 61326 1998 Class A Annex A Continuous Unmonitored Operation following the provisions of the 89 336 EEC EMC Directive and the 94 9 EC ATEX Directive The units listed above and any ancillary sample handling systems supplied with them do not bear CE marking for the Pressure Equipment Directive as they are supplied in accordance with Article 3 Section 3 sound engineering practices and codes of good workmanship of the Pressure Equipment Directive 97 23 EC for DN lt 25 Shannon July 1 2003 pm 770 Mr James Gibson GENERAL MANAGER lt LS EN ISO 9002 TUV ESSEN Shannon ISO 9001 U S CERT DOC Rev G1 5 28 02 GE Panametrics DECLARATION CONFORMITE GE Panametrics Shannon Industrial Estate Shannon Co Clare Ireland d clarons sous notre propre responsabilit que les CRL Ultrasonic Flow Transducer CRS Ultrasonic Flow Transducer CRV Ultrasonic Flow Transducer CRW Ultrasonic Flow Transducer relatif 4 cette d claration sont en conformit avec les documents suivants EN 50014 1997 A1 A2 1999 EN 50018 2000 EN 50028 1987 EN 50281 1 1 1998 II 2 GD EEx md IIC T6 CRL CRS CRV KEMA02ATEX2337 X CRW KEMA03ARTEX1540 X KEMA Ultrechtseweg 310 Arnhem The Netherlands EN 61326 1998 Class A Annex A Continuous Unmoni
13. Note Make sure both chains are perpendicular to the clamping fixture and are not twisted Ifthe chains are slanted the slack will cause the blocks to slide The slack may also change the transducer spacing after the transducers are mounted Figure 5 below shows a completed single traverse installation without transducers Proceed to Mounting Transducers into the UCF on the next page T JPANAMETRICS Side View S Top View Figure 5 A Single Traverse Clamping Fixture Installation without Transducers 16 Installing C RS Transducers April 2004 Mounting Transducers into the UCF The last step of installation is mounting the transducers into the clamping fixture C RS transducers are manufactured with a V notch on top of the transducer body 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 taken during installation to ensure all protection is afforded Procedure for Mounting Transducers To mount the transducers into the UCF use the following steps 1 Apply a thread sealant to the transducer threads A sealant is not required within the US however a sealant must be used in European Communities 2 Before mounting the transducers thread the junction box onto the end of the transducer with the BNC connector Ensure that at least five full threads are engaged Make sure
14. The instructions that follow can be used for a multiple traverse method However you must use an EVEN number of traverses The distance the signal travels from one side of the pipe wall to the opposite side of the pipe wall is considered one traverse 1 Obtain the transducer spacing dimension S as described in the programming section of the Startup Guide 2 Be sure the location you have chosen for the installation has at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameters downstream of the measurement point 3 Prepare the pipe where you intend to place the clamping fixture by making sure it is clean and free of loose material Sanding though usually not required may be necessary to take off any high spots Be careful to preserve the original curvature of the pipe Installing C RS Transducers 33 April 2004 The Double Traverse 4 Method MCF cont Using the scale on the rod move the blocks so they are located a distance equal to the spacing dimension from each other To move the block loosen the red thumb screws slide the block to the desired location and tighten the thumb screws Use the pressure bolt or the edge of the block as the measuring point for the block Select one method to set spacing Locate the magnetic blocks at least 4 in away from the transducer blocks This will ensure that there is enough clearance to mount the transducers in the blocks Mov
15. Transducer Body Figure 1 General C RS Transducer Assembly Installing C RS Transducers 1 April 2004 Couplants GE Panametrics supplies an ultrasonic couplant for your C RS installation The purpose of the couplant is to provide reliable transmission of ultrasound between two adjacent solid surfaces Generally speaking couplants perform this task by excluding air from between the adjacent surfaces Accordingly the C RS transducers should be pressed tightly against the pipe using hand pressure on the set screw to squeeze the couplant to as thin a film as practical for the given pipe surface The most commonly used couplants in ultrasonic testing are ordinarily satisfactory for any short term clamp on flowmeter application These couplants include in general order of preference gels grease propylene glycol oil glycerine and water Long term couplants include grease epoxy adhesive and solid rubber like sheet couplant GE Panametrics 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 from GE Panametrics are listed in Table 1 below Table 1 Couplants PART NO TYPE TEMP RANGE CPL 1 Standard 40 to 149 F Semi Permanent CPL 2 High Low 256 to 500 F Semi Permanent ka Temperature 160 to 260 C CPL 3 For Portable 4 to 140
16. ance with the instructions contained in the manual Access to the circuitry must not be made during operation e Only trained competent personnel may install operate and maintain the equipment e The product has been designed so that the protection afforded will not be reduced due to the effects of corrosion of materials electrical conductivity impact strength aging resistance or the effects of temperature variations e The product cannot be repaired by the user it must be replaced by an equivalent certified product Repairs should only be carried out by the manufacturer or by an approved repairer e The product must not be subjected to mechanical or thermal stresses in excess of those permitted in the certification documentation and the instruction manual e The product contains no exposed parts which produce surface temperature infrared electromagnetic ionizing or non electrical dangers e The product must be protected by a suitable fuse The breaking capacity of the fuse must be in accordance with the prospective short circuit current of the supply The product must be installed in such a way that its front face is protected against impact e Installation Instructions The product is provided with a male 3 4 NPT thread For electrical connection the product must be mounted to a certified metal enclosure in type of explosion protection flameproof enclosure d the assembly complying with the requirements of EN50018 and provi
17. ansducer N A No additional adjustments or maintenance needed If you suspect something is wrong with a transducer or need to replace a transducer simply loosen the pressure bolt that secures the transducer in place and remove it If necessary loosen the locking nut with a wrench Refer to Installing the Transducers to insert a new transducers No cleaning required Couplant Verify every 6 months in dry areas e g the desert Verify every 12 months in other areas Measure the signal strength using diagnostics and compare to the value taken at the time of installation Good and bad limits are listed in the Service Manual or User s Manual No cleaning required Dampening Material N A Life of 25 years Consult factory for additional information if needed No cleaning required Clamping Fixture Determined by user Periodic inspection and tighten ing of clamping fixture nuts is required to ensure clamping fix ture does not become loose and fall possibly causing injury No cleaning required 44 Installing C RS Transducers April 2004 Specifications Table 4 C RS Transducer Specifications Transducer 401 402 403 Designation Large pipes ductile Mid size pipes high Small pipes high per iron pipes lined performance formance pipes high levels of two phase liquid high performance Installation Type Clamp on for liquid appl
18. anties set forth herein are exclusive and are in lieu of all other warranties whether statutory express or implied including warranties or merchantability and fitness for a particular purpose and warranties arising from course of dealing or usage or trade Ifa GE Panametrics instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Panametrics giving full details of the problem and provide the model number and serial number of the instrument If the nature of the problem indicates the need for factory service GE Panametrics will issue a RETURN AUTHORIZATION NUMBER RAN and shipping instructions for the return of the instrument to a service center will be provided 2 If GE Panametrics 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 3 Upon receipt GE Panametrics will evaluate the instrument to determine the cause of the malfunction Then one of the following courses of action will then be taken If the damage is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned If GE Panametrics determines that the damage is not covered under the terms of the warranty or if the warranty has expired an estimate for the cost of the repairs at standard rates will be provided Upon receipt of the owner s approval to proc
19. cial clamping fixture and specifying either the thread lock or the washers 7 Repeat Steps 1 to 6 to mount the other transducer in the remaining block See Figure 12 on the next page for completed installations IWARNING Before performing the next step make sure power to the flowmeter electronics has been disconnected 8 Make transducer cable connections as described in the Installation chapter of the Startup Guide IWARNING If your fixture is installed at an elevated location GE Panametrics recommends securing the fixture with the optional safety chain or a tether leash to prevent injury if the fixture falls off the pipe 42 Installing C RS Transducers April 2004 Mounting Transducers into the MCF cont Double Traverse Installation Top View Single Traverse Installation Top View Figure 12 Completed MCF Installations with Transducers Note If you have mounted the transducers into the MCF properly the two transducer cable connectors will face away from each other as shown in the above figure Installing C RS Transducers 43 April 2004 Maintaining the C RS Transducers Transducers couplant the clamping fixture and dampening material are provided by GE Panametrics Once you have completed installation little maintenance is required Refer to Table 3 below for maintenance information Table 3 Maintenance Checks Component Interval Maintenance Check Comments Tr
20. dered one traverse The procedure for mounting the GCF involves marking the pipe for the desired spacing fastening the fixture to the pipe and then mounting the transducers into the fixture Procedure for the Single Traverse Method You will need a level and marker or scribe to locate the transducers on the pipe 1 Obtain the transducer spacing dimension S as described in the programming section of the Startup Guide 2 Be sure the location you have chosen for the installation has at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameters downstream of the measurement point 3 Prepare the pipe where you intend to place the GCF by making sure it is clean and free of loose material Sanding though usually not required may be necessary to take off any high spots Be careful to preserve the original curvature of the pipe and not to eradicate the marks on the pipe 4 Find the top of the pipe and use a level to draw a line parallel to the pipe s axis Top of Pipe Side View Installing C RS Transducers 25 April 2004 o aba m The Single Traverse 5 Make two marks on the line equal to the transducer spacing Method GCF cont distance S as calculated by the meter Spacing Side View 6 From one of the marks measure around the circumference of the pipe a distance equal to one quarter the pipe s circumference Make a crossmark with a marker or scribe Crossmark Side
21. ding a degree of protection of IP6X Measures must be taken to ensure a good bonding connection and to prevent the connection from self loosening Cf 6 CERT ATEX C 7 16 03 GE Panametrics MAIN OFFICES WORLDWIDE OFFICES GE PANAMETRICS INTERNATIONAL OFFICES USA GE Panametrics 221 Crescent St Suite 1 Waltham MA 02453 3497 USA Telephone 781 899 2719 Toll Free 800 833 9438 Fax 781 894 8582 E mail panametrics ps ge com Web www gepower com panametrics ISO 9001 Certified Ireland GE Panametrics Shannon Industrial Estate Shannon Co Clare Ireland Telephone 353 61 470200 Fax 353 61 471359 E mail info panametrics ie ISO 9002 Certified July 2003 Australia P O Box 234 Gymea N S W 2227 Australia Telephone 61 02 9525 4055 Fax 61 02 9526 2776 E mail panametrics panametrics com au Austria Waldgasse 39 A 1100 Wien Austria Telephone 43 1 602 25 34 Fax 43 1 602 25 34 11 E mail panametrics netway at Benelux Postbus 111 3870 CC Hoevelaken The Netherlands Telephone 31 0 33 253 64 44 Fax 31 0 33 253 72 69 E mail info panametrics nl France BP 106 11 Rue du Renard 92253 La Garenne Colombes Cedex France Telephone 33 0 1 47 82 42 81 Fax 33 0 1 47 86 74 90 E mail panametrics panametrics fr Germany Mess und Pruftechnik Robert Bosch Stra e 20a 65719 Hofheim Germany Telephone 49 6122 8090 Fax 49 6122 8147 E mail panametrics t
22. e materials only Different fixtures are used for a single and double traverse installation Each type of MCF has magnets at either end of the fixtures When the magnets are turned ON the fixture magnetically clamps to the pipe wall To properly mount the MCF you should become familiar with the components of each type of fixture Refer to Figure 11 below to identify these components then refer to one of the following sections to install the clamping fixture e Double traverse Method on the next page e Single traverse Method page 36 Transducer Block Magnetic Block Optional Safety Chain Pressure Bolt Locking Nut ON OFF Switch Figure 11 Transducer Block and Magnetic Block 32 Installing C RS Transducers April 2004 The Double Traverse Method MCF The Double Traverse MCF consists of two blocks connected by two rods one of the two rods acts as a scale or ruler to help you properly space transducers Both blocks are adjustable This type of fixture has two transducer blocks and like the magnetic blocks both are adjustable The procedure for mounting the MCF involves setting the transducer spacing and then securing the fixture to the pipe Procedure for the Double Traverse Method IWARNING Do not use the MCF at temperatures that exceed 120 F 49 C or the fixture will fall off the pipe To install the MCF in a double traverse configuration Note
23. e the adjustable magnetic block in the same manner as the transducer block At least 4 Position the clamping fixture along the horizontal plane of the pipe If the pipe is horizontal do not place the fixture on the top or bottom of the pipe Top View 34 Installing C RS Transducers April 2004 The Double Traverse Method MCF cont 7 Turn the switches on each magnet to the ON position UN OFF S If provided secure the safety chain The safety chain prevents the fixture from falling of the pipe in the event the magnet releases Proceed to Mounting Transducers into the MCF on page 40 Installing C RS Transducers April 2004 The Single Traverse The Single Traverse MCF consists of two parts Each part is made up Method MCF of two magnetic blocks which are connected by two rods In addition a sliding transducer block which is used to hold the transducer in proper alignment is positioned on the two rods Each part is positioned on the pipe to face 180 opposite each other Note In some cases a magnetic clamping fixture with two transducer blocks is used The procedure for mounting the MCF involves marking the pipe and then securing the fixtures to the pipe Procedure for the Double Traverse Method WARNING Do not use magnetic fixtures at temperatures that exceed 120 F 49 C or the fixture will fall off the pipe To install the MCF in a single traverse configura
24. eed the instrument will be repaired and returned April 2004 am Introduction The C RS ultrasonic flow transducer is used exclusively with the GE Panametrics line of ultrasonic flowmeters These transducers measure the flow rate of sonically conductive liquids through pipes having diameters between 2 in 5 cm and over 300 in 7 6 m Such measurements are typically independent of the pipe material This document provides the following instructions on installing and maintaining C RS transducers Transducer Construction see below e Couplants page 2 e Preparing for Installation 3 e Installing the Universal Clamping Fixture and Transducers page 7 e Installing the General Clamping Fixture and Transducers page 21 e Installing the Magnetic Clamping Fixture and Transducers page 32 e Maintaining Transducers page 44 e Specifications page 45 Transducer The C RS operates in process temperatures from 40 to 302 F 40 to Construction 150 C Each C RS transducer assembly consists of the following components see Figure 1 below e astainless steel adapter with 3 4 NPT male thread for attaching a junction box atransducer that consists of a peizoelectric element mounted on a wedge and wired to the BNC connector e a BNC style connector for use in connecting the transducer to the flowmeter This temperature is for ATEX certified designs Consult factory for higher temperatures BNC Connector
25. er with couplant along the surface of the pipe when mounting 40 Installing C RS Transducers April 2004 Mounting Transducers 4 Place the transducers in the appropriate blocks Make sure the into the MCF cont transducers are oriented as shown below Note If the transducer cables are already connected you must determine the upstream and downstream directions of the pipe and place the transducers into the appropriate blocks Downstream Transducer Top View 5 Use the pressure bolt to secure the transducer in place The pressure bolt should fit into the dimple Hand tighten enough to hold the transducer in place Do not overtighten so that the fixture lifts off the pipe IWARNING Do not tighten the pressure bolt so that the magnet separates from the pipe Pressure Bolt Locking Nut Top View Installing C RS Transducers 41 April 2004 ee Mounting Transducers 6 Tighten the locking nut on the pressure bolt see drawing in step into the MCF cont 5 on previous page IMPORTANT When using the MCF ina pipe location with possible mechanical vibration the locking nut must be used to secure the position of the pressure bolt on the transducer after the bolt has been hand tightened into the transducer dimple 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 Panametrics by requesting a spe
26. he pipe and then mounting the transducers into the fixture Procedure for the Double Traverse Method You will need a level and a marker or scribe to locate and mark the transducer locations on the pipe 1 Obtain the transducer spacing dimension S as described in the programming section of the Startup Guide 2 Be sure the location you have chosen for the installation has at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameters downstream of the measurement point 3 Prepare the pipe where you intend to place the clamping fixture by making sure it is clean and free of loose material Sanding though usually not required may be necessary to take off any high spots Be careful to preserve the original curvature of the pipe 4 Find the top of the pipe and use a level to draw a line parallel to the pipe s axis Top of Pipe Side View 22 Installing C RS Transducers April 2004 The Double Traverse 5 Make two marks on the line equal to the transducer spacing Method GCF cont distance S as calculated by the meter Spacing Side View 6 From each of the marks measure around the circumference of the pipe in the same direction a distance equal to one quarter the pipe s circumference Make a crossmark with a marker or scribe Side View Crossmarks 7 Center one of the blocks over one of the crossmarks on the pipe Align the block so that the pressure bolt is over
27. he transducer dimple 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 Panametrics by requesting a special clamping fixture and specifying either the thread lock or the washers Repeat Steps 1 to 6 to mount the other transducer in th remaining block e Tighten the thumbscrews on the short blocks to make sure the block is secure on the rail See Figure 6 on the next page for completed UCF installations IWARNING Before performing the next step make sure power to the flowmeter electronics has been disconnected Make transducer cable connections as described in the Installation chapter of the Startup Guide Installing C RS Transducers 19 April 2004 Mounting Transducers into the UCF cont Double Traverse Installation Top View Single Traverse Installation Top View Figure 6 Completed UCF Installations with Transducers Note If you have mounted the transducers into the UCF properly the two transducer cable connectors will face away from each other as shown in the above figure 20 Installing C RS Transducers April 2004 aa mr Installing the General The General Clamping Fixture GCF acts as a permanent transducer Clamping Fixture and holder The fixture has two blocks that are used for double and Transducers GCF single traverse methods Steel straps secure the blocks to the pipe fo
28. ications Material 316 Stainless Steel or plastic Pipes Sizes 2 to 300 5 cm to 2 to 300 5cmto 2 to 6 5 to 15 cm 7 6 m diameter 7 6 m diameter diameter Operating Frequency 0 5 MHz 1 0 MHz 2 0 MHz Electrical Rating 200 V peak to peak 5 mA Ambient Temperature Range 40 to 167 F 40 to 75 C Process Temperature Range 40 to 302 F 40 to 150 C North American Certification Explosion proof Pending GB Class I Division 1 Group B amp D Cc US European Certification Flameproof IL 2 GD EEx md IIC T6 80 C Tam 40 to 75 C 40 to 167 F KEMA 02ATEX2337 X North American Certification Weatherproof IP66 TYPE 4X K R 200V pp 5mA C US European Certification Weatherproof POCE supply IMPORTANT The transducer is protected by a suitable fuse located in the flowmeter electronics The fuse has a breaking capacity in accordance with the short circuit current of the Installing C RS Transducers 45 GE Panametrics D CLARATION CONFORMITY GE Panametrics Shannon Industrial Estate Shannon Co Clare Ireland declare under our sole responsibility that the CRL Ultrasonic Flow Transducer CRS Ultrasonic Flow Transducer CRV Ultrasonic Flow Transducer CRW Ultrasonic Flow Transducer to which this declaration relates are in conformity with the following standards EN 50014 1997 A1 A2 1999 EN 50
29. il 2004 The Single Traverse Method MCF cont 7 From the other mark go in the opposite direction around the pipe for one quarter the circumference and make another crossmark Crossmark Side View On one of the fixtures position the transducer block anywhere along the rods being sure to leave enough room on either side to easily insert the transducer To move the block loosen the red thumbscrews slide the block to the desired location and tighten the thumbscrews Use the pressure bolt as the measuring point for the block Repeat for the other fixture Note If you are using a fixture with two transducer blocks adjust 9 one block as described above and push the unused block all the way to one side of the rail Tighten the pressure bolt all the way down on the unused block This will act as a reminder to not install the transducer in that block Thumbscrew Center the block over one of the marks on the pipe Align it such that the pressure bolt on the transducer block is right over the center of the crossmark Pressure Bolt Top View 38 Installing C RS Transducers April 2004 The Single Traverse 10 Turn the switches on each magnet to the ON position Method MCF cont BN OFF 11 Repeat Steps 9 and 10 for the other fixture on the opposite pipe marking Top View 12 If provided secure the safety chain The safety chain prevents the fixture from falli
30. ing fixture and are not twisted If the chains are slanted the slack may cause the fixture to move around The slack may also change the transducer spacing after the transducers are mounted Figure 4 below shows a completed double traverse installation without transducers Proceed to Mounting Transducers into the UCF on page 17 Side View Top View Figure 4 A Double Traverse Clamping Fixture Installation without Transducers Installing C RS Transducers 11 April 2004 The Single Traverse Note The instructions in this section can also be used for a Method UCF multiple traverse method However you must use an ODD number of traverses The distance the signal travels from one side of the pipe wall to the opposite side of the pipe wall is considered one traverse The procedure for mounting the UCF for the single traverse method requires a long block and two short blocks The long block is fastened to the pipe first and then the short block assembly is properly aligned and fastened at 180 from the long block Procedure for the Single Traverse Method You will need a marker or scribe to locate and mark the transducer locations on the pipe Do the following 1 Obtain the transducer spacing dimension S as described in the programming section of the Startup Guide Be sure the location you have chosen for the installation has at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameter
31. ling C RS Transducers April 2004 Identifying the UCF Components cont End View Side View Pressure Bolt Locking Nut Thumbscrew Short Block 1 Screw Hook fixed and adjustable Long Block 2 Screw Hooks Slide Track Example with Short Blocks Figure 3 Components of the UCF 8 Installing C RS Transducers April 2004 ee The Double Traverse Note The instructions in this section can also be used for a Method UCF multiple traverse method However you must use an EVEN number of traverses The distance the signal travels from one side of the pipe wall to the opposite side of the pipe wall is considered one traverse For more than two traverses consult the GE Panametrics factory There are three advantages to using the double traverse method e Accuracy is improved because the signal is in the fluid longer than with a single traverse This configuration can reduce some effect of an underdeveloped flow profile e If there is enough pipe length available the double traverse fixture is easier to install Procedure for the Double Traverse Method The procedure for mounting the UCF involves setting the transducer spacing and fastening the fixture on the pipe Please note you will only need the short block assembly for a double traverse installation the long block is not used 1 Obtain the transducer spacing dimension S as described in the programming section of the Startup Guide 2 Be sure
32. n a position such that the acoustic signal travels through the full distribution of the under developed flow profile for best repeatability Installing C RS Transducers 3 April 2004 EEE mamma a Ja Choosing an Installation 2 Place the transducers as close as possible to the horizontal plane Location cont see figure below Locate the transducers on opposite sides of the pipe 180 apart ideally at the 3 and 9 o clock positions Do not place transducers on the top or bottom of the pipe Note For best profile identification in limited straight run place transducers at 1 and 7 o clock Transducer Signal Path End View Preparing the Pipe 1 Prepare the pipe for the transducers by clearing rust and paint from an area 2 in 5 cm wide by 4 in 10 cm long on one side of the pipe 2 Polish the cleared area taking care to preserve the original curvature of the pipe 3 With an ultrasonic thickness gage measure the pipe thickness at a minimum of six spots on the cleared area Take at least three measurements at each spot to ensure accuracy The thickness should not vary by more than 5 at each spot If you encounter more than a5 variation at each spot move to another section of the pipe Verify that the wall thickness at both transducer locations has less than the 5 variation 4 Measure the outside diameter OD of the pipe using a tape measure or the supplied pipe wrap 4 Installing C RS Transducers
33. ng of the pipe in the event the magnet releases Proceed to Mounting Transducers into the MCF on the next page Installing C RS Transducers 39 April 2004 Mounting Transducers The last step of installation is mounting the transducers into the into the MCF clamping fixture C RS transducers are manufactured with a dimple on top of the transducer body In addition it also has scribe marks on each side 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 taken during installation to ensure all protection is afforded Procedure for Mounting Transducers To mount the transducers into the MCF use the following steps 1 Apply a thread sealant to the transducer threads A sealant is not required within the US however a sealant must be used in European Communities 2 Before mounting the transducers thread the junction box onto the end of the transducer with the BNC connector Ensure that at least five full threads are engaged Make sure to orient the cover of the junction box so it is accessible to make cable connections once the box is installed 3 Take one of the transducers and apply a thin bead of couplant down the center of its face approximately the size of a toothpaste bead IMPORTANT To prevent the loss of couplant do not slide the transduc
34. online de Italy Via Feltre 19 A 20132 Milano Italy Telephone 02 2642131 Fax 02 264 14454 E mail info panametrics it Japan 2F Sumitomo Bldg 5 41 10 Koishikawa Bunkyo Ku Tokyo 112 0002 Japan Telephone 81 03 5802 8701 Fax 81 03 5802 8706 E mail pci panametrics co jp Korea Kwanghee Bldg 201 644 2 Ilwon dong Kangnam Ku Seoul 135 945 Korea Telephone 82 2 445 9512 Fax 82 2 445 9540 E mail jkpark panaeng co kr Spain Diamante 42 28224 Pozuelo de Alarcon Madrid Spain Telephone 34 91 351 82 60 Fax 34 91 351 13 70 E mail info panametrics infonegocio com Sweden Box 160 S147 23 Tumba Sweden Telephone 46 0 8 530 685 00 Fax 46 0 8 530 357 57 E mail pana panametrics se Taiwan 7th FI 52 Sec 3 Nan Kang Road Taipei Taiwan ROC Telephone 02 2788 3656 Fax 02 2782 7369 E mail rogerlin lumax com tw United Kingdom Unit 2 Villiers Court 40 Upper Mulgrave Road Cheam Surrey SM2 7AJ England Telephone 020 8643 5150 Fax 020 8643 4225 E mail uksales panametrics ie USA GE Panametrics 221 Crescent Street Suite 1 Waltham MA 02453 3497 Telephone 781 899 2719 Toll free 800 833 9438 Fax 781 894 8582 E Mail panametrics ps ge com Web www gepower com panametrics Ireland GE Panametrics Shannon Industrial Estate Shannon County Clare Ireland Telephone 353 61 470200 Fax 353 61 471359 E Mail info panametrics ie
35. r a permanent installation The blocks are positioned properly using the spacing dimension calculated by the flowmeter Then the transducers are mounted into the blocks Figure 7 below shows a long block The transducer installation consists of mounting the GCF to the pipe and then mounting the transducers into the blocks Refer to the appropriate section that follows for instructions Double traverse Method see below e Single traverse Method see page 25 End View Side View Figure 7 General Clamping Fixture Block The Double Traverse Note The instructions in this section can also be used for a Method GCF multiple traverse method However you must use an EVEN number of traverses The distance the signal travels from one side of the pipe wall to the opposite side of the pipe wall is considered one traverse For more than two traverses consult the GE Panametrics factory There are three advantages in using the double traverse method e Accuracy is improved because the signal is in the fluid longer than with a single traverse This configuration can reduce some effects of an underdeveloped flow profile e If there is enough pipe length available the double traverse fixture is easier to install Installing C RS Transducers 21 April 2004 ees The Double Traverse The procedure for mounting the GCF involves marking the pipe for Method GCF cont the desired spacing fastening the clamping fixture on t
36. s downstream of the measurement point Prepare the pipe where you intend to place the UCF by making sure it is clean and free of loose material Sanding though usually not required may be necessary to take off any high spots However be careful to preserve the original curvature of the pipe and not to eradicate the marks on the pipe Find the top of the pipe and use a level to draw a line parallel to the pipe s axis Top of Pipe Side View 12 Installing C RS Transducers April 2004 The Single Traverse 5 Make two marks on the line equal to the transducer spacing Method UCF cont distance S as calculated by the meter Spacing a Side View 6 From one of the marks measure around the circumference of the pipe a distance equal to one quarter the pipe s circumference and make a crossmark with the marker or scribe Spacing Crossmark A Side View 7 From the other mark go in the other direction around the pipe for one quarter the circumference and make another crossmark Spacing Crossmark Pa Side View Installing C RS Transducers 13 April 2004 The Single Traverse Method UCF cont 8 Center the long block over one of the crosssmarks on the pipe Align the long block so that the pressure bolt is over the center of the crossmark Fasten the block by wrapping both chains around the pipe and fastening the chains to the screw hooks on the oppo
37. site side of the block Fasten Chains Top View 9 Use the wing nuts to tighten the chains on the long block until it is secured snugly to the pipe Note Make sure both chains are perpendicular to the bottom of the block and are not twisted If the chains are slanted the slack will cause the block to slide Tighten Screw Hooks Top View 14 Installing C RS Transducers April 2004 ee The Single Traverse 10 Position the clamping fixture rails so that one of the short blocks Method UCF cont is placed over the remaining crossmark on the opposite side of the pipe and the pressure bolt is over the center of the crossmark Make sure the block does not lie on top of the chains of the long block Short Block Crossmark One of two C k rossmar Top View 11 Wrap the chain around the pipe and fasten the chain to the screw hook on the opposite side of the block Do this for both short blocks Note Make sure the chains on both blocks are on the same side of the fixture and are opposite the ruler Top View 12 Tighten the pressure bolt all the way down on the short block that is NOT positioned over the crossmark This will act as a reminder to not install the transducer in that block Installing C RS Transducers 15 April 2004 The Single Traverse 13 Use the screw hooks to tighten the chains on the fixed and Method UCF cont adjustable blocks until the blocks are secured snugly to the pipe
38. the center of the mark Secure the block by wrapping the two straps around the block and pipe and tightening them Make sure the turnbuckles are at least 1 2 pipe diameter away from the block Turnbuckles Top View Installing C RS Transducers 23 April 2004 The Double Traverse 8 Repeat Step 7 to install the other block over the other crossmark Method GCF cont Note Make sure both straps are perpendicular to the bottom of the block Ifthe straps are slanted the slack will cause the block to slide The slack may also change the transducer spacing after the transducers are mounted Top View Figure 8 below shows a double traverse installation without transducers Proceed to Mounting Transducers into the GCF on page 29 End View Figure 8 A Double Traverse GCF Installation without Transducers 24 Installing C RS Transducers April 2004 ee The Single Traverse Note The instructions in this section can also be used for a Method GCF multiple traverse method However you must use an ODD number of traverses The distance the signal travels from one side of the pipe wall to the opposite side of the pipe wall is consi
39. tion Note The instructions in this section can also be used for a multiple traverse method However you must use an ODD number of traverses The distance the signal travels from one side of the pipe wall to the opposite side of the pipe wall is considered one traverse 1 Obtain the transducer spacing dimension S as described in the programming section of the Startup Guide 2 Be sure the location you have chosen for the installation has at least 10 pipe diameters of straight undisturbed flow upstream and 5 pipe diameters downstream of the measurement point 3 Prepare the pipe where you intend to place the MCF by making sure it is clean and free of loose material Sanding though usually not required may be necessary to take off any high spots Be careful to preserve the original curvature of the pipe and not to eradicate the marks on the pipe 36 Installing C RS Transducers April 2004 The Single Traverse 4 Find the top of the pipe and use a level to draw a line parallel to Method MCF cont the pipe s axis Top of Pipe Side View 5 Make two marks on the line separated by the transducer spacing distance S as calculated by the meter Spacing Side View 6 From one of the marks measure around the circumference of the pipe a distance equal to one quarter the pipe s circumference Use a marker or scribe to make a crossmark Crossmark 2 a Side View Installing C RS Transducers 37 Apr
40. tored Operation suivant les r gles de la Directive de Compatibilit Electromagn tique 89 336 EEC et d ATEX 94 9 EC Les mat riels list s ci dessus ainsi que les syst mes d chantillonnages pouvant tre livr s avec ne portent pas le marquage CE de la directive des quipements sous pression car ils sont fournis en accord avec la directive 97 23 EC des quipements sous pression pour les DN lt 25 Article 3 section 3 qui concerne les pratiques et les codes de bonne fabrication pour l ing nierie du son Shannon July 1 2003 PR An Mr James Gibson DIRECTEUR GENERAL lt LS EN 1809002 T V ESSEN Shannon ISO 9001 U S CERT DOC Rev G1 5 28 02 GE Panametrics KONFORMIT TS ERKLARUNG GE Panametrics Shannon Industrial Estate Shannon Co Clare Ireland erkl ren in alleiniger Verantwortung dab die Produkte CRL Ultrasonic Flow Transducer CRS Ultrasonic Flow Transducer CRV Ultrasonic Flow Transducer CRW Ultrasonic Flow Transducer folgende Normen erfiillen EN 50014 1997 A1 A2 1999 EN 50018 2000 EN 50028 1987 EN 50281 1 1 1998 II 2 GD EEx md IIC T6 CRL CRS CRV KEMA02ATEX2337 X CRW KEMA03ARTEX1540 X KEMA Ultrechtseweg 310 Arnhem The Netherlands e EN 61326 1998 Class A Annex A Continuous Unmonitored Operation gem den Europ ischen Richtlinien Niederspannungsrichtlinie EMV Richtlinie Nr 89 336 EG und ATEX Richtlinie Nr 94 9 EG Die oben aufgef hrten Ger te und zugeh rige
41. ur clamping fixture The UCF is available in two lengths 12 and 24 in 30 5 and 61 cm Each size fixture can be installed for a single or double traverse method However depending on the method used there are pipe size restrictions that are outlined in Table 2 below Table 2 UCF Pipe Sizes Clamping Fixture Single Traverse Double Traverse Length Pipe Diameter Pipe Diameter 12 in 30 5 cm 2 to 24 in 2to 12in 5 to 61 cm 5 to 30 5 cm 24 in 61 cm 2 to 48 in 2 to 24 in 5 to 122 cm 5 to 61 cm Note The mounting chain strap provided is best suited for your application The UCF has two adjustable short blocks that are used for the double traverse method Two slide tracks connect the blocks A ruler attached to one of the tracks helps set the transducer spacing For single traverse methods a long block is also used The blocks are used to hold the transducers in position for accurate measurement The UCF is chained or strapped around the pipe The blocks are positioned using the spacing dimension calculated by the flowmeter Then the transducers are mounted into the blocks Figure 3 on the next page shows the short and long blocks The transducer installation consists of mounting the UCF to the pipe and then mounting the transducers into the fixture Refer to the appropriate section that follows for instructions e Double traverse Method page 9 e Single traverse Method page 12 Instal
42. with couplant along the surface of the pipe when mounting Installing C RS Transducers 29 April 2004 Mounting Transducers 4 Place the transducers in the appropriate blocks Make sure the into the GCF cont transducers are oriented as shown below Note If the transducer cables are already connected you must determine the upstream and downstream directions of the pipe and place the transducers into the appropriate blocks Locking Nut Top View 5 Use the pressure bolt to secure the transducer in place The pressure bolt should fit into the dimple Hand tighten enough to hold the transducer in place Do not overtighten so that the fixture lifts off the pipe 6 Tighten the locking nut on the pressure bolt see above IMPORTANT When using the GCF in a pipe location with possible mechanical vibration the locking nut must be used to secure the position of the pressure bolt on the transducer after the bolt has been hand tightened into the transducer dimple 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 Panametrics by requesting a special clamping fixture and specifying either the thread lock or the washers
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