Model C-RV - GE Measurement & Control
Contents
1. Figure 2 The V4 V8 and V12 Fixtures C RV Ultrasonic Flow Transducers Installation Guide 3 October 2004 E E Choosing an Installation 1 Locate the transducer measurement point at least 3 ft 1 m from Location 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 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 apart ideally at the 3 and 9 o clock positions Do not place transducers on the top or bottom of the pipe Transducer Signal Path End View 4 C RV Ultrasonic Flow Transducers Installation Guide October 2004 Obtaining the Enter the required information into the flowmeter s user program Transducer Spacing Pipe Parameters menu to determine the transducer spacing Some applications may require you to conduct a pipe survey before you can obtain2. 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 f possible the second block should also be set at least 1 in 2 5 cm from the edge of the fixture Zero Point on Set second block Measuring Scales using this edge Top View C RV Ultrasonic Flow Transducers Installation Guide October 2004 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 O
3. the transducer spacing Refer to Obtaining the Transducer Spacing section of your User s Manual or Startup Guide for more details 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 C RV Ultrasonic Flow Transducers Installation Guide October 2004 Installing the V Series Clamping Fixtures and Transducers Tools and Equipment Needed 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 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 in crescent box wrench or 10 in adjustable wrench other safety eq
4. GE Infrastructure Sensing Model C RV Ultrasonic Flow Transducer Installation Guide GE Infrastructure Sensing Model C RV Ultrasonic Flow Transducer Installation Guide 916 078A October 2004 October 2004 Table of Contents MOUTON SEWER RR MEE NEM eu di Na 1 Transducer CONS UC ON kette ae u 1 Dampe n ing Materlal s rtr din sense lara Lana Mets eats 2 lnstallihig the Cz RV Transducers una eurer ea Rome Re nt mn nt e 3 Choosing an Installation Location 2 4 Obtaining the Transducer Spacing unuanur oneee a aE 5 Installing the V Series Clamping Fixtures and Transducers 6 Tools and Equipment Needed 2 6 Setting the Transducer Spacing 7 Installing the amp Eixt re en ore tn ake nee e hte te ann gun 9 Preparing the PIBB eo cite eb ee reet a bI eti didt true e edd 12 Applying the DMP 1 Dampening Material 14 Applying DMPs5 COMPOURG eec areata 16 Applying the Pipe Dampening Jacket PDJ 2 18 Mounting the Transducers 20 Manienance em trt UE LM ee M ii 23 SECC ONS i4 odeurs ioni ne ors re E 24 October 2004 Warranty Return Policy Each instrument manufactured
5. PORTANT The dampening material will only adhere to the pipe correctly if the pipe is completely dry IWARNING HIGH TEMPERATURE APPLICATIONS ONCE THE DAMPENING COMPOUND IS APPLIED TO THE PIPE THE COMPOUND MAY DRIP AND WILL CAUSE SEVERE BURNS UPON CONTACT WITH BARE SKIN ALSO BE SURE NOT TO INHALE THE FUMES GENERATED DURING THE DMP 3 CURING CYCLE 2 Wearing gloves place a piece of the DMP 3 material on top of the pipe and use the palm of the hand to press it onto the pipe Note f the measurement point is near a flange or weld apply DMP 3 between that structure and the fixture as well 3 Spread the DMP 3 material so that it covers the whole area under the fixture to a thickness of about 0 25 in 6 mm 16 C RV Ultrasonic Flow Transducers Installation Guide October 2004 wr Si H F 5i i i aI Applying DMP 3 4 Reinstall the fixture around but not on the DMP 3 material Compound cont making sure the fixture is reassembled properly to ensure the correct transducer spacing see Installing the Fixture beginning with step 3 on page 10 Once the fixture is on the pipe tighten the four nuts with a 1 in crescent box wrench DO NOT use a cross tightening pattern 5 Using a putty knife or other utensil remove the DMP 3 material from the transducer locations 6 To mount transducers refer to Mounting the Transducers page 20 C RV Ultrasonic F
6. Top View Tightening Pattern of Bolts Tighten equally first Tighten equally second 2 3 Side View C RV Ultrasonic Flow Transducers Installation Guide 11 October 2004 EE Preparing the Pipe 1 Using a permanent marker mark the inside edges of the fixture These lines indicate where to clean the pipe and then apply the dampening material Make sure you mark both sides of the fixture Make marks here Top View 2 Remove the fixture Marks Top View 12 C RV Ultrasonic Flow Transducers Installation Guide October 2004 Preparing the Pipe cont 3 Clean the area between the marks Remove any loose paint or rust with sandpaper or emery cloth Make sure to preserve the original curvature of the pipe If the finish is mirror smooth use the file to roughen the surface TIP If you are concerned about removing the reference lines during cleaning use a tape measure and measure 2 ft 60 cm from one of the reference lines and mark another line temporary or permanent This line can be used as a reference point later Using an emery cloth clean the cleared area Again take care to preserve the original curvature of the pipe With an ultrasonic thickness gage measure the pipe thickness at a minimum of six spots on the cleared area Take at least three measurem
7. able for pipes 4 6 8 10 and 12 100 150 200 250 and 300 mm in diameter At a minimum you should consider applying dampening material if you have any of the following conditions 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 Infrastructure Sensing 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 RV Ultrasonic Flow Transducers Installation Guide October 2004 Lee 5565 2 1 Iii Ij Installing the C RV GE Infrastructure Sensing offers the following fixtures to suit your Transducers applications needs e V4 clamping fixture V8 clamping fixture V12 clamping fixture Figure 2 below shows the V4 V8 and V12 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 V8 Fixture V4 Fixture V12 Fixture
8. ansducer folgende Normen erf llen EN 50014 1997 A1 A2 1999 e EN 50018 2000 e EN 50028 1987 EN 50281 1 1 1998 e 2GD EEx md IIC T6 CRL CRS CRV KEMAO2ATEX2357 X CRW KEMAO3ATEX1540 X EMA 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 Shannon July 1 2003 nbn L4 Mr James Gibson GENERALDIREKTOR NSAI CE E gt TUV LS EN ISO9002 TUV ESSEN Shannon ISO 9001 U S CERT DOC HO August 2004 ATEX COMPLIANCE Sensing We GE Infrastructure Sensing Inc 1100 Technology Park Drive Billerica MA 01821 4111 U S A as the manufacturer declare under our sole responsibility that the product Type C RV 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 anne EEx md IIC T6 1180 KEMAO2ATEX2337 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 Only trained competent personnel may install operate and maintain the equipment e The produ
9. by GE Infrastructure Sensing Inc 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 Infrastructure Sensing Inc Fuses and batteries are specifically excluded from any liability This warranty is effective from the date of delivery to the original purchaser If GE Infrastructure Sensing Inc 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 Infrastructure Sensing Inc 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 Infrastructure Sensing Inc the repairs are not covered under this warranty The warranties set forth herein are exclusive and are in lieu of all other warranties whether statutory express or implied including warranties of merchantability and fitness for a particular purpose and warranties arising from course of dealing or usage or trade If a GE Infrastructure Sensing Inc instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Infrastructure Sensing Inc giving full details of the problem and provide the model number and serial number of th
10. cations tighten the locking nut with a Transducers cont wrench to maintain constant pressure and prevent loosening due to vibration and thermal expansions Locking Nut Top View What s Next You have completed installing the V Series Clamping Fixture and transducers You should do the following Refer to the installation section of your User s Manual or Startup Guide to make transducer connections Make a note of the installation date and set a schedule for periodic inspection and tightening of clamping fixture nuts to ensure clamping fixture does not become loose and fall possibly causing injury Once the flowmeter is up and running measure the signal strength of each transducer using the flowmeter s diagnostics menu and make a note of it This value will be helpful when making periodic checks Refer to your User s Manual or Startup Guide for more details 22 C RV Ultrasonic Flow Transducers Installation Guide Maintenance October 2004 DaI __ Transducers couplant the clamping fixture and dampening material are provided by GE Infrastructure Sensing Once you have completed installation little maintenance is required Refer to Table 2 below for maintenance information Table 2 Maintenance Checks Component Interval Maintenance Check Comments Transducer N A No additional adjustments or maintenance needed If you suspect something is wrong with a transducer or need to repla
11. ce 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 the appropriate section 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 tightening of clamping fixture nuts is required to ensure clamping fixture does not become loose and fall possibly causing injury No cleaning required C RV Ultrasonic Flow Transducers Installation Guide 23 October 2004 EE Specifications Table 3 C RV Transducer Specifications Transducer No 310 Primary Use Mid size pipes Installation Type Clamp on Material of Construction 316 SS and plastic Pipe Sizes gt 2 to 12 gt 50 to 300 mm Clamping Fixture CFG V4 CFG V8 CFG 12 Operating Frequency 500 kHz Electrical Rating 200 V peak to peak 5 mA Ambient North America Temperature 20 to 75 C 4 to 167 F Rang
12. cer and the pipe Air will cause the transducer signal to attenuate IMPORTANT 7o prevent the loss of couplant do not slide the transducer with couplant along the surface of the pipe when mounting 4 If you are using CPL 1 CPL 2 or CPL 3 proceed to the next step CPL 16 proceed to step 7 on the next page 20 C RV Ultrasonic Flow Transducers Installation Guide October 2004 LAAAA EAAAAAAAAEEEEEELLILZOZ EDLIADZJOCILLZERLLLLIIXmLLidE Mounting the 5 Insert the transducers into the mounting blocks making sure the Transducers cont BNC connectors or junction boxes point away from the center of the fixture Tighten the pressure bolts to hold the transducers in place Hand tighten the bolt enough so the transducer makes contact with the pipe IMPORTANT Do not use a wrench or pliers on the pressure bolt Pressure Bolt Transducer Top View 6 Skip to step 10 on the next page 7 Install the transducers into the mounting blocks Use the pressure bolt to hold the transducer in place while the couplant begins to spread Wait 1 minute IMPORTANT Do not use a wrench or pliers on the pressure bolt 8 Turn the pressure bolt 1 4 turn and wait 1 minute again Do not overtighten so that the fixture lifts off the pipe 9 Repeat step 8 once then proceed to the next step C RV Ultrasonic Flow Transducers Installation Guide 21 October 2004 Mounting the 10 For permanent appli
13. ct 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 accordance with the instructions contained in the manual Access to the circuitry must not be made during operation e The product has been designed so that the protection afforded will not be reduced due to the effects of corrosion of materials electrical conductivitu 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 supplu e The product must be installed in such a way that its front face is protected against impact Installation Instruct
14. e instrument If the nature of the problem indicates the need for factory service GE Infrastructure Sensing Inc will issue a RETURN AUTHORIZATION number RA and shipping instructions for the return of the instrument to a service center will be provided 2 If GEInfrastructure Sensing Inc 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 Infrastructure Sensing Inc will evaluate the instrument to determine the cause of the malfunction Then one of the following courses of action will then be taken f the damage is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned f GEInfrastructure Sensing Inc 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 proceed the instrument will be repaired and returned October 2004 Introduction The C RV clamp on ultrasonic flow transducers are used exclusively with the GE Infrastructure Sensing line of ultrasonic flowmeters These transducers are used to measure the flow of various gases through pipes having diameters from less than 2 in 50 mm to 12 in 300 mm Such measurements are independent of the pipe material This document p
15. e E urope 40 to 75 C 40 to 167 F Process Temp Range _4 to 130 C 40 to 266 F North American Class I Div 1 Certification SP Group B C D Explosion proof C US European Certification amp II 2 GD EEx md IIC Flameproof TO Tamb 40 to 75 C 40 to 167 F KEMA 02ATEX2337 X North American IP66 TYPE 4X Certification SP 200Vpp 5mA Weatherproof c US European Certification rp 66 C Weatherproof IMPORTANT 77e 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 supply 24 C RV Ultrasonic Flow Transducers Installation Guide DECLARATION Sensing OF CONFORMITY We Panametrics Limited Shannon Industrial Estate Shannon County 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 e EN 50014 1997 A1 A2 1999 e EN 50018 2000 e EN 50028 1987 e EN 50281 1 1 1998 e 2 GD EEx md IIC T6 CRL CRS CRV KEMAO2ATEX2337 X CRW KEMAO3ATEX1540 X EMA Ultrechtseweg 510 Arnhem The Netherlands e EN 61326 1998 Class A Annex A Continuous Unmonitored Operation following the provisions of the 89 336 EEC EMC Directiv
16. e and the 94 9 EC ATEX Directive Shannon July 1 2003 me p 40 E Mr James Gibson GENERAL MANAGER nsa LS EN 1509002 T V ESSEN Shannon ISO 9001 U S CERT DOC HO August 2004 DECLARATION Sensing DE CONFORMITE Nous Panametrics Limited Shannon Industrial Estate Shannon County 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 r latif 4 cette d claration sont en conformit avec les documents suivants EN 50014 1997 A1 A2 1999 e EN 50018 2000 e EN 50028 1987 EN 50281 1 1 1998 e 2GD EEx md IIC T6 CRL CRS CRV KEMAO2ATEX2357 X CRW KEMAO3ATEX1540 X EMA Ultrechtseweg 310 Arnhem The Netherlands e EN 61326 1998 Class A Annex A Continuous Unmonitored Operation suivant les r gles de la Directive de Compatibilit Electromagn tique 89 336 EEC et d ATEX 94 9 EC Shannon July 1 2003 a Ed Mr James Gibson DIRECTEUR G N RAL NSAI C E gt TU LS EN 1509002 T V ESSEN Shannon ISO 9001 U S CERT DOC HO August 2004 Sensing KONFORMIT TS ERKLARUNG Wir Panametrics Limited Shannon Industrial Estate Shannon County Clare Ireland erkl ren in alleiniger Verantwortung da die Produkte CRL Ultrasonic Flow Transducer CRS Ultrasonic Flow Transducer CRV Ultrasonic Flow Transducer CRW Ultrasonic Flow Tr
17. ents at each spot and average the results to ensure accuracy The thickness should not vary by more than 5 among the six spots If you encounter more than a 5 variation move to another section of the pipe Verify that the wall thickness at both transducer locations has less than the 5 variation What s Next The next series of steps depends on what type of dampening material you are using If you are using DMP 1 proceed to the next section on the next page DMP 3 proceed to page 16 PDJ proceed to page 18 C RV Ultrasonic Flow Transducers Installation Guide 13 October 2004 Applying the DMP 1 Dampening Material 1 Unroll the DMP 1 material and peel back a small part of the paper backing Do not completely remove the paper backing One 9 5 in 24 cm roll fits between the lines marked on the pipe 2 Use a dry towel or rag and dry the pipe IMPORTANT The dampening material will only adhere to the pipe correctly if the pipe is completely dry 3 Roll the DMP 1 dampening material around the pipe peeling the paper backing off as you go Place the material between the marks that represent the inside edge of the fixture as shown below Use the entire length supplied wrapping the material over itself 4 Reinstall the fixture making sure the fixture is reassembled correctly to ensure the correct transducer spacing see Installing the Fixture beginning with step 3 on page 10 5 Loosely mount the transd
18. h step 3 on page 10 adjusting the fixture so the cont transducer block falls over the pre stamped transducer holes at the flowmeter spacing calculations The figure below shows the PDJ and the fixture with transducers Note Make sure the fixture is reassembled properly to ensure the correct transducer spacing 5 Once the fixture is on the pipe tighten the four nuts with a 1 in crescent box wrench DO NOT use a cross tightening pattern 6 To mount transducers refer to Mounting the Transducers page 20 C RV Ultrasonic Flow Transducers Installation Guide 19 October 2004 Mounting the Transducers If your application requires junction boxes refer to step 1 below does not require junction boxes skip to step 3 Note Dampening material is not shown in the following illustrations Apply a thread sealant to the transducer threads A sealant is not required within the U S however a sealant must be used in European Communities 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 Apply a bead of couplant 0 25 in 6 mm wide along the entire length of each transducer face The purpose of the couplant is to expel the air gap between the transdu
19. ions 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 providing a degree of protection of IPEX Measures must be taken to ensure a good bonding connection and to prevent the connection from self loosening CE amp CERT ATEX D Rev August 2004 USA GE Infrastructure Sensing 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 lreland GE Infrastructure Sensing Shannon Industrial Estate Shannon County Clare Ireland Telephone 353 61 470200 Fax 353 61 471359 E Mail info panametrics ie
20. low Transducers Installation Guide 17 October 2004 Applying the Pipe Dampening Jacket PDJ WARNING BE SURE TO WEAR PROPER EYE AND SKIN PROTECTION WHEN APPLYING THE DAMPENING COMPOUND ALSO MAKE SURE THERE IS PROPER VENTILATION 1 Remove the backing from the inside of the pipe dampening jacket WARNING HIGH TEMPERATURE APPLICATIONS ONCE THE DAMPENING COMPOUND IS APPLIED TO THE PIPE THE COMPOUND MAY DRIP AND WILL CAUSE SEVERE BURNS UPON CONTACT WITH BARE SKIN ALSO BE SURE NOT TO INHALE THE FUMES GENERATED DURING THE DMP 3 CURING CYCLE 2 Install the jacket on the pipe so the jacket is between the marks and the transducer holes are located at the 3 and 9 o clock positions Note GE Infrastructure Sensing recommends placing the PDJ on the pipe so the seam is as close to the of the pipe as possible Placing the seam at the top of the pipe reduces the amount of dripping 3 Tighten the clamping screws evenly in sequence see figure below taking care not to twist or warp the PDJ When tightening some fluid and dampening material will drip from the bottom of the jacket Note As the dampening material dries out over several hours after installation its effectiveness increases ro 1 2 3 4 Tighten in sequence 18 C RV Ultrasonic Flow Transducers Installation Guide October 2004 Applying the Pipe 4 Install the fixture over the jacket see Installing the Fixture Dampening Jacket PDJ beginning wit
21. rovides details on the following topics Transducer Construction Dampening Material nstallation Maintenance e Specifications Transducer A transducer assembly includes a 316 stainless steel housing with a Construction 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 BNC Connector 5 8 24 UNEF Thread 3 4 NPT Thread Spanner Wrench Hole Set Screw KL SS Housing Figure 1 Transducer Assembly ref dwg 536 023 C RV Ultrasonic Flow Transducers Installation Guide 1 October 2004 EE Dampening Material GE Infrastructure Sensing 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 twice the circumference of the pipe at the installation site The DMP 3 is a compound for applications over 150 F 65 C The compound is applied to the pipe with a putty knife Pipe Dampening Jacket PDJ is a sheath jacket with DMP 3 pre applied to the inside and is also used for applications over 150 F 65 C The PDJ is avail
22. therwise the transducer spacing will be incorrect Remove 4 places Top View C RV Ultrasonic Flow Transducers Installation Guide 9 October 2004 Installing the Fixture 3 Position the clamping fixture as close as possible to the horizontal cont plane The fixture should be positioned so the transducers will be located on the opposite sides of the pipe 180 apart ideally at the 3 and 9 o clock positions For best profile identification in limited straight run place transducers at 1 and 7 o clock Do 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 Mating Half Top View Zero on Each Measuring Scales Top View 10 C RV Ultrasonic Flow Transducers Installation Guide October 2004 Installing the Fixture 4 Install the four nuts onto the threaded rods with the convex side of cont the nut facing the fixture Hand tighten each nut evenly as shown below DO NOT use a cross tightening pattern Nuts Nuts 2 places 2 places
23. ucers on top of the dampening material 6 With a marker trace around the transducer footprint Remove the fixture and transducers EI 14 C RV Ultrasonic Flow Transducers Installation Guide October 2004 Applying DMP 1 7 Use a utility knife to cut out the area under the transducer Dampening Material footprint Peel the cut material off the pipe as shown below cont 8 Reinstall the fixture on the pipe see Installing the Fixture beginning with step 3 on page 10 Once the fixture is on the pipe tighten the four nuts with a 1 in crescent box wrench DO NOT use a cross tightening pattern 9 Use the second strip of dampening material for additional dampening Unroll the second strip of dampening material and cut the strip into two pieces each 4 5 in 11 cm wide 10 Wrap each of these strips around the pipe on the outside edge of the clamping fixture one upstream and one downstream The completed dampening material installation should appear similar to the figure below with transducers 11 To mount transducers refer to Mounting the Transducers page 20 C RV Ultrasonic Flow Transducers Installation Guide 15 October 2004 CEE g clH E Ee EOJAaeE i E 7 E N Applying DMP 3 IWARNING Compound BE SURE TO WEAR PROPER EYE AND SKIN PROTECTION WHEN APPLYING THE DAMPENING COMPOUND ALSO MAKE SURE THERE IS PROPER VENTILATION 1 Use a dry towel or rag and dry the pipe IM
24. uipment suitable for your application DMP 1 DMP 3 PDJ utility knife gloves 7 16 in crescent box wrench or 4 in adjustable wrench putty knife or other utensil to remove access dampening compound C RV Ultrasonic Flow Transducers Installation Guide October 2004 EE Setting the Transducer 1 If necessary assemble the fixture as shown below Make sure the Spacing Zero points on each ruler are at the same end of the fixture as shown below Insert in 4 places Top View Zero Points 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 Measuring Scales Set Screw Mounting Block Set at 1 in 2 5cm using Set at 1 in 2 5 cm this edge of block Top View C RV Ultrasonic Flow Transducers Installation Guide 7 October 2004 Setting the Transducer Spacing cont 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
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