MNKS006
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1. 29 Table 5 Database object numbers for path lengths cccccccccccccccceecececeeeececeeeeeeeeeeeeeess 30 Page 4 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter 1 INTRODUCTION This manual describes mounting and dismounting of the transducers for the MPU ultrasonic gas flow meter delivered by FMC Smith Meter previously FMC Kongsberg Metering If further information is needed please do not hesitate to contact our service department We reserve the right to make changes to the construction and or configuration at any time this manual is based on the latest information and may be subject to changes 1 1 Contact Address if Assistance is Required a Publisher Customer Support Contact FMC Measurement Solutions FMC Technologies Address Ellerbek Operation Service Department Regentstrasse 1 Regentstrasse 1 25470 Ellerbek 25474 Ellerbek Germany German Telephone 49 4101 304 0 49 4101 304 0 105 No 49 4101 304 255 49 4101 304 152 No E Mail mea ellerbek intl fmcti com menellerbek intl fmcticom fmcti com mea ellerbek intl fmcti com meauellerbek intl fmeti com fmcti com a EE Table 1 Contact Adress 1 2 Copyright All technical information contained in this manual including any drawings and technical specifications shall remain the property of FMC Technologies and may not be used other than for the operation of this product copied multi2. 5 DOCU TAG ACI yee c sect cre ee ates eects etencen EEEE 30 950 gt 1 11 0 eee Pee eee nos E iosc ent eet Meer re rte eer me 31 PRD 0000022520 Rev 00C Page 3 of 32 MNKS006 0 0 4 08 ap MIC Technologies MPU Transducer Replacement Procedure Pictures Pictore Fe TE GOIN asenn a EEE 6 Pewee T e P a E S 7 Picture gt Transducer Assembly cccecticcsc iasawsonsdsenanccnataotenatneadecutn oonsussancdinetectonnttentscccaneoseaens 11 Picture 4 Transducer mounting paris a saxcessccccseeansnaseacssacst sanguecnsssacarsensaaneootoasseanusueneaoosacaces 12 Picture 3 Cable Clan and COyVeT sxicece nba sere ctedaueudienonocheieneustcsanesuscsaeueicseccom diner osmuuaderes 13 Pemes CADIS SIA AUS eea a E E E E roi 13 Powe a O e a E A E cet ase maven eee 14 Picture 8 Detailed picture how to release the Wire eeeeeeeeeeeeeeeeeeeeenetnsneeeeeeeeeeeees 14 Picture 9 Disassemble ranSQUueer esseri E N 14 Picture 10 Transducer with O rings and Back up rings mounted c ssessseseeeeeeeeeees 15 Picture 11 Mo ntine he ttangd CEf sosasssevawencnttad cnccecinmospbansases vosanennnedeanncerkensspaatedencsonsnens 20 Peire SS STA OO iste Sees E E et aaiteo scene 20 FeO A 2 A n S T see eee shoes T ER 21 PPC eS TA WV CS rise cscs E E sender saavonseaane 21 Picture 15 Transducer with mounted wire ccscscesscsceeseeesesessssssnsesesesesssssssnsesessseseegegs 22 Picture 16 Fasten the cover hand tight cc ccccsssssssssssseseeccec
3. picture how to release the wire Picture 9 Disassemble transducer Disassemble the transducer with transducer assembly tool 15Nm Page 14 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter CAUTION If any damage is discovered to the Transducer this Transducer adapter must be clearly marked such that the Transducer Retraction Tool is NOT used on this specific Transducer This must also be reported to the one responsible for the MPU Flame Path Picture 10 Transducer with O rings and Back up rings mounted PRD 0000022520 Rev 00C Page 15 of 32 MNKS006 0 0 4 08 VIC Technologies MPU Transducer Replacement Procedure This page is intentionally left blank Page 16 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter 4 MOUNTING PROCEDURE 4 1 Preparing Procedure Before starting the mounting procedure the following procedure must be performed 4 1 1 Cleaning Pollutions must be removed using suitable tools and liquids preferably isopropanol 4 1 2 Visual Inspection e Inspect the inside of the adapter and transducer for damages grease or pollution from the process e Transducers with O ring and Back up rings e Tolerances for cover mounting 4 1 3 Assumptions It is assumed that the Transducers are zero calibrated 4 1 4 Prepare Transducer Adapter 4 2 Preparing Transducer A Remove the old O ring and Back up
4. valid if the system is installed according to the specifications of the manufacturer 2 2 Ex relevant Data Type of protection I 2 G EEx d IIB T4 T5 C Eo EC type test certificate number PTB 07 ATEX 1018 Type US B Tamb for T4 55 C 100 C Type US A Tamb for T5 40 C 80 C Page 10 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter 3 DISMOUNTING THE TRANSDUCER F A a i 4 A f E aa F i r a FIEF k p 7 te te El CURET Ye T eet et a eee et ett sae i Py 7h r 4 3 4 ss s H e j j a 2 I 7 A y g Sini i 7 H L Picture 3 Transducer Assembly ITEM i PART NUMBER DESCRIPTION MATERIAL Ty ee a 1 870007040 Transducer Assembly CL600 calibrated 1 2 870007018 Adapter 1 4404 EN 10222 5 APZ EN 10204 3 1 1 3 870007010 Cover REV B 1 4404 EN 10222 5 APZ EN 10204 3 1 1 i i 4 200004260 ME x 25 Head Cap Screw DIN S12 MG x 25 44 80 APZ EN 10204 3 1 4 5 200010561 O Ring 18 77 x 1 78 NER 70 1 6 200012096 Backup Ring 19 4 x 22 x 1 2 BY PTFE 252 2 T 200007504 O Ring 59 x 2 NER 70 1 a 6000006 O Ring 27 x 2 5 NER 70 1 PRD 0000022520 Rev 00C Page 11 of 32 MNKS006 0 0 4 08 ale NIC Technologies MPU Transducer Replacement Procedure 3 1 Dismounting Short Form 1 De energise the electronic system and observe any possible explosion relevant information on the type plate Make sure that the
5. S006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter PARAMETER CONFIGURATION 5 1 General It is necessary to update the database if transducers have been replaced During first time assembly database configuration will be a part of the process and this chapter will be irrelevant Updating the database requires knowledge of how to maneuver in the MPU 1200 database and shall be performed by trained personnel Spare transducers are delivered in pairs with a calibration certificate for each temperature and pressure combination with corresponding signal frequency and measurement certificate of the length of each transducer The spare transducer pair is calibrated in an arbitrary position They can be mounted in any position but it is important that the transducers are kept within the same pairs A Calibration Node is defined as a combination of pressure and temperature Definition of transducer pairs Position Position Group A Group B 1B 6A Table 3 Transducer pair definition PRD 0000022520 Rev 00C Page 27 of 32 MNKS006 0 0 4 08 MIC Technologies MPU Transducer Replacement Procedure 5 2 Calibration certificate The relevant data in the calibration certificate is stated in the header and the 4 first rows of the table see Figure below The header shows Date Pressure Temperature Signal frequency The table shows e Path to 6 referring to position 1A 1B to 6A 6B e Transducer serial
6. ececececeaeaasaeaesseseeeeeeeeeess 22 Picture 17 Mount ithe cable gland gscicssascewetessaboonnuscncencierneconssenusensientbeesetenatanestnersasevenaniedbes 23 Picture 18 Insert th robber SCAM vac cccensescesssardaencesaserercatudeiia sented e T r EE 23 Picture 19 insert the blue plastic washer 0 nnnsoosoonenennsssseennnssssssseerrssssssssreeessssseereessss 24 Picture 20 Dismount the cable gland ennennensssssssoseoeeresessssssssssseseerereressssssssssssseererereeeee 24 Picture 21 Clean the transducer MOUNTING SULTACE cccceeccecccececececeeeeneseesseeeeeeeeeeeess 25 Picture 22 Use the fit up aid for positioning cc ceeeeseeseeeeseseecececccececeeeaeaaeeseeeseseeeeeeess 25 Picture 23 Use the hexagon socket wrench for the SreWS ccceeeeeeeeeeeeeeeeeeeeeeeeeeenees 26 Picture 24 Use torque Key torque is 24 NM uu ceseseecccececeseeeeeceeeeesaeeeeeeeeeeeseeaaenees 26 Picture 25 Transducer Calibration Report ccccccccsesssesseeseeccecececeeececeaaaaessesseeeeeeeeeeeeees 28 WADI TC OMA CE OCS esana concede nciinessatnenseeesscneeagece ances NEE E 5 Table ZR EPC eMC LO CUTIES ssa cacreecccstaccocosnsesoesteuadusendutaestncutooeucttactassautacsececadecwecbaasadebeeness 6 Table 3 Transducer pair GemmitiOn ceric chccercecivescusastecuasetoeeabententeteswedeesseecexeeateasndientednaivaeess 27 Table 4 Database object numbers for zero calibration nodes ccccccececeeeeeeeeseeeeeeeees
7. flamepaths see Picture 2 do not have any damage If so the part must be replaced Carefully insert the Transducer into the adapter Mount the Cable Gland EU Connect the Transducer Cable Connector Mount the cover aanp Update the database if transducers are replaced CAUTION The screws must be of required quality the threads must be lubricated and correct torque must be used ref section 3 1 PRD 0000022520 Rev 00C Page 19 of 32 MNKS006 0 0 4 08 ale NIC Technologies MPU Transducer Replacement Procedure 4 4 Mounting the Transducer Make sure the Transducers are mounted in correct position according to the calibration certificate N 7 mn z i i f Picture 11 Mounting the transducer Make sure that the transducer and the thread is clean and screw it manually into the adapter Py F i oe 10 Nan Picture 12 Assembly tool Use the transducer assembly tool and a torque wrench with 15 Nm to tighten the transducer Mounting the cover with cable gland Page 20 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter Picture 13 Cable gland Mount at first the cable gland and then the cover Picture 14 Wires Connect the wires to the cage clamp junctions Use ferrules for the wires Push the wires into the junction if necessary use a screw driver for support You don t need to open the junction for mounting Pull the wire slightly to check that con
8. nection PRD 0000022520 Rev 00C Page 21 of 32 MNKS006 0 0 4 08 Sz FECNNOIOGIECS MPU Transducer Replacement Procedure Picture 16 Fasten the cover hand tight Page 22 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter Picture 17 Mount the cable gland Dismount the cable gland completely and mount the bottom part of the cable gland Picture 18 Insert the rubber seal PRD 0000022520 Rev 00C Page 23 of 32 MNKS006 0 0 4 08 ale NIC Tech nologies MPU Transducer Replacement Procedure Picture 20 Dismount the cable gland Mount the clamping screw hand tight Check that the rubber seal clamps the cable sheath completely To check pull soft the cable it must be impossible to pull the cable out of the cable gland Affix the transducer sticker Page 24 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter 4 5 Mounting the adapter To replace the adapter is only necessary if it is damaged 4 7 E 4 rm j i i 3 E a a J 4 P i P i e a F it j aoo ee 3 Picture 21 Clean the transducer mounting surface Picture 22 Use the fit up aid for positioning PRD 0000022520 Rev 00C Page 25 of 32 MNKS006 0 0 4 08 leS MPU Transducer Replacement Procedure Picture 23 Use the hexagon socket wrench for the srews a Picture 24 Use torque key torque is 24 Nm Page 26 of 32 PRD 0000022520 Rev 00C MNK
9. number S N which is stamped on the transducer Transducer length L listed in millimeters mm e Tdelay adj referring to Transducer delays in microseconds us to be inserted into the database The rest of the table is for information and diagnostic purposes only Jf 1 amin tei Peeper foe BL y fe i pe fee oe ie gt 2ead A224 25 A fF emerge pl CP iodo oc ie eg Oe aag i alg ele Transducer Calibration Report MPU THX kening VIP Ll 250 Pane een aaeray Date AN i Prensa Li Maw ME Loerneysystene MPU Cainranios LARNERNy irp 15 iiki femperetee E Fei Trams Trem ad Peeri Bg tnd Hri Ligeal iN Limni Taker f Traeed Timi fos Terai Thaw Qai Dekel tt ip joe Bi mirae Picture 25 Transducer Calibration Report Page 28 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter 5 3 Transducer delays The transducers are calibrated in pairs The transducer delays and delta T for spare transducer pairs are found in the supplied calibration certificates one certificate for each calibration node These must be entered for the respective Calibration Nodes Make sure that the calibration data is inserted for the correct pressure and temperature combination The data can be entered using the MPU WinScreen program Instructions can be found in USM 0000020565 WinScreen User Manual MPU Series B 1 The database object number for the respective Calibration Node
10. pipe is de pressurised Loosen the locking nut of the cable gland and pull off toward the back Completely loosen the M20 x 1 5 cable gland and pull off to the back n e WON Completely loosen the cover 3 and pull off to the back Cable gland and cover remain on the pipe 6 using a screwdriver open the locking mechanism of the connection terminal by applying pressure on the white unlocking button and pull out the cable see Fig 3 7 Loosen the transducer 1 by unfasten with the Transducer Assembly Tool The transducer can be completely removed manually Attention Do not loosen the Allen screws 4 If the cylindric screws are loosened tighten again diagonally with 24 Nm Screw M8 x 25 Adapter Cover Cable Gland Picture 4 Transducer mounting parts od da Dismounting detailed form It is necessary to dismount the cable gland from the cover before removing the transducer Page 12 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter Picture 5 Cable gland and cover Picture 6 Cable gland parts Remove the clamping screw 1 the blue plastic washer 2 the sealing rubber 3 and the body of the cable gland 4 PRD 0000022520 Rev 00C Page 13 of 32 MNKS006 0 0 4 08 ale NIC Tech nologies MPU Transducer Replacement Procedure Picture 7 Cable junction Unfasten the wires by pressing with a screw driver on the white release button Picture 8 Detailed
11. plied passed on or communicated to a third party without prior written permission of FMC Technologies 2003 FMC Technologies 1 3 Trademarks Products listed are trademarks of their respective manufacturers Company names listed are trade names of their respective companies PRD 0000022520 Rev 00C Page 5 of 32 MNKS006 0 0 4 08 VIC Technologies MPU Transducer Replacement Procedure 1 4 Equipment Required Jaw wrench 40mm Combination wrench 22mm 3 Combination wrench 19mm 4 Fit up aid 5 Transducer Assembly tool Ratchet with nut 6 Torque key 7 Hexagon socket wrench Smm 8 Hexagon socket wrench 6mm 9 Screwdriver N e Picture 1 Equipment 1 5 Consumables O rings ID 15 D 1 NBR 70 Back up rings ID 17 OD 21 5 b 1 4 POM Copper Grease Copaslip or equivalent Silicone grease Gleitmo 750 or equivalent Loctite 577 or equivalent 1 6 Reference Documents poems e USM 0000020565 MPU User Manual Series B 2 DOK 501 MPU Transducer Replacement Procedure using Retraction Tool Table 2 Reference Documents 1 7 Warnings Warning Always make absolutely sure that there is no pressure in the pipe before removing the Transducer cover Do not use metal tools or similar that can damage the inner thread of the Transducer when dismounting the Transducers The Transducer has a M20x1 5 thread to make it possible to use the Transducer Retraction Tool Page 6 of 32 PRD 0000022520 Re
12. r Multipath Ultrasonic Gas Flow Meter eP IVIC Technologies MPU Series B Transducer Replacement Procedure Procedure Manual PRD 0000022520 Rev 00C FL nb April 2008 MNKS006 0 0 4 08 The Most Trusted Name In Measurement Transducer Replacement Procedure Transducer Replacement Procedure Procedure History Revision Important All information and technical specifications in this documentation have been carefully checked and compiled by the author However we cannot completely exclude the possibility of errors Smith Meter GmbH is always grateful to be informed of any errors Page 2 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter TABLE OF CONTENTS 1 PEROU T N aAA AAR 5 1 1 Contact Address if Assistance is Required 1 c ssessesssessseesseeseeneeeeees 5 C2 COV NG ac secretes E 5 t3 Trademarks css tot pectiensyentencusuenenoneneousnecaneusmesuneuuaeonaeas 5 1 4 Equipment Required ici cccseceicceiecesce cote dececstressinesesenwecneenatnecesraecxeezconsewetes 6 1 9 Consumables asec a we aai 6 1 6 Reference Documents sssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnnm nnn 6 Mil A E EE E EE teecswunwesscccwes 6 2 DISMOUNTING PROCEDURE sssssnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnnm 9 2 1 General information on explosion protection ssccssesssessseseeeeeees 10 2 2 Ex relevant Data u cccccccsscecseeseeeeeeeenseeeensen
13. rings B Make sure that the mating faces are clean and dry When cleaning a joint face use a tool which is not likely to score or damage the face and remove any burrs or nicks with an oilstone or fine file CAUTION Make sure that the flame paths see Picture 4 do not have any damage If so the part must be replaced C Replace the O ring and the Back up rings on the Transducer see Picture 3 Put silicon grease Gleitmo 750 or equivalent on the new O ring Do not use too much silicon grease on these O ring wipe off superfluous grease before mounting The silicon grease can make an acoustic contact between the Transducer and the Spool Piece which will disturb the ultrasonic signals D Make sure that the Transducer is clean and undamaged PRD 0000022520 Rev 00C Page 17 of 32 MNKS006 0 0 4 08 VIC Technologies MPU Transducer Replacement Procedure Note If the same transducer is re installed the O rings and backup rings must be replaced in any case Only use original spare parts Page 18 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter 4 3 Mounting Short Form CAUTION Make sure the Transducers are mounted in correct position according to the calibration certificate A Replace o ring and back up rings Use silicon grease on O ring and copper grease e g Copaslip on the screws B Check the adapter internals clean it before mounting CAUTION Make sure that the
14. s are shown in the table below Deseription Node Nodes Cal Node x Pressure Cal Node x Temperature Cal Node x Signal Type Table 4 Database object numbers for zero calibration nodes PRD 0000022520 Rev 00C Page 29 of 32 MNKS006 0 0 4 08 ae NIC Technologies MPU Transducer Replacement Procedure 5 4 5 5 Page 30 of 32 Update path lengths Due to minor variations of the length of the transducers new data for the acoustic path length has to be entered when transducers are changed The measured transducer lengths for the original transducers are stated in the Calibration Report for the meter The measured transducer lengths for the new transducers are stated in the supplied measurement certificate The acoustic path length is given by PathLnew PathLoriginal Loriginal transd A Lyew transd A L Original transd B L New transd B PathLiew New acoustic path length PathLoriginal Original acoustic path length Lotiginal transd A Length of original transducer position A Lotiginal transd B Length of original transducer position B Ligeia Length of new transducer position A Lievin Length of new transducer position B The new acoustic path length PathLnew must be calculated according to the above formula and then entered into the database The corresponding database numbers are shown in the table below Number Table 5 Database object numbers for path lengths Documentation It is importan
15. screws are removed by turning counter clockwise and tightened by turning clockwise Make sure the workplace is suitable for this operation protected from rain or sea water dirt or oil spill cover the MPU with a protection hood if necessary PRD 0000022520 Rev 00C Page 9 of 32 MNKS006 0 0 4 08 aie NIC Technologies MPU Transducer Replacement Procedure 2 1 General information on explosion protection The transducer is an explosion protected electrical appliance safety tested and certified xxx No intervention either mechanical or electrical is permitted RISK OF EXPLOSION Repair of the transducer is not possible In the event of a defect the entire transducer must be replaced Installation and repair work must only be carried out by authorised dealerships or skilled technical personnel having due regard to the assembly and installation instructions Electrical installation must take place in accordance with VDE 0165 EN 70079 10 All cables used must comply with the chemical and climatic requirements of the installation site All cables must be laid protected in such a way that they cannot be damaged Wire end sleeves must be used when connecting the wires The mounting instructions of the cabling manufacturer must be observed When wiring the US transducer precautions must be taken which prevent electrostatic discharge from causing damage to the US transducer The manufacturer s EC Declaration of Conformity is only
16. seneensensensenseusenseuseeseeseeeeenens 10 3 DISMOUNTING THE TRANSDUCER cccsecceeeeeesseensenseeeeeeeneeeneeees 11 3 1 Dismounting Short FOrm cccccesseeesseesceeseceseeesseesssenseoeseoeseseaes 12 3 2 Dismounting detailed form 1 ccsscsssscnsscnsscnnsscnseenssenssensssenssonssenses 12 4 MOUNTING PROCEDURE wsssitevsssacsneianscavavtisancaveavacenscstscnnainavesnentenes 17 4 1 Preparing Procedure snnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn a 17 Ce Mes E E a A E E E E 17 A2 Visual Spect Origa AE R 17 Ala ASSN LOIS spesis TAREA EER 17 44 Prepare Transdocer Adapter sesoses 17 4 2 Preparing Transducer ssssssnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnna 17 4 3 Mounting Short Form ssssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn mnnn nnn 19 4 4 Mounting the Transducer cssccesceseeeceesenseenensenseenecnsenseeseeeeensenees 20 4 5 Mounting the adapter cccscsscesccnscescnsecsccnsenscnnsensensenssensensensensecssenses 25 9 PARAMETER CONFIGURATION ccccssccessceeseeeseeeseeenseenseseeeeesseneeees 27 eds nTa oee Ei EEEa 27 5 2 Calibration certificate ssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn 28 5 3 Transducer delays sesccceeec es rensxxencneacwcmaec ssrensuccpdncies suas de saedseusnuseesdeessceoee 29 5 4 Update path lence scrcisccisicctevecsvsncveccnwcdgecitveusvontawetewisgccteveciwscdescdeveteyt 30 5
17. specifications are currently in effect Otherwise the manufacturer assumes no responsibility for the use of specifications which may have been changed and are no longer in effect Headquarters 500 North Sam Houston Parkway West Suite 100 Houston TX 77067 USA Phone 281 260 2190 Fax 281 260 2191 Gas Measurement Products Liquid Measurement Products Beijing China 86 10 6500 2251 Houston TX USA 1 281 260 2190 Erie PA USA 1 814 898 5000 Singapore 65 6861 3011 Thetford England 44 1842 82 2900 Los Angeles CA USA 1 310 328 1236 Chennai India 91 44 450 4400 Kongsberg Norway 47 32 286 700 Slough England 44 1753 57 1515 Buenos Aires Argentina 54 11 4312 4736 Ellerbek Germany 49 4101 304 0 Integrated Measurement Systems Barcelona Spain 34 93 201 0989 Corpus Christi TX USA 1 361 289 3400 Moscow RUSSIAE F ae ee 2100 Kongsberg Norway 47 32 286 700 Melbourne Australia 61 3 9807 2818 San Juan Puerto Rico 1809 787 274 3760 United Arab Emirates Dubai 971 4 331 3646 Visit our website at www fmctechnologies com measurementsolutions Printed in U S A 4 08 FMC Technologies Measurement Solutions Inc All rights reserved PRD 0000022520 00C MNKS006 Issue Rev 0 0 4 08
18. t that relevant documentation is updated if transducers are replaced A new printout of the database should be performed or at least the recently entered data must be noted in the log book PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter 5 6 Example Imagine the following situation 1 A fault is detected at transducer number 5A 2 Spare transducers are calibrated at pair 1 3 The system has 3 nodes What to do 1 Replace transducer 5A with spare transducer 1A position Group A 2 Replace transducer 5B with spare transducer 1B position Group B 3 Check the pressure and temperature combination for the 3 nodes by reading the database see Table 4 4 Then locate the 3 correct calibration certificates according to the right combination of pressure temperature and frequency 5 Enter the new transducer delay for the 3 nodes into the database data for spare transducer 1A at position 5A and data for spare transducer 1B at position 5B 6 Calculate new path length according to the formula in section 4 4 7 Enter the new calculated path length for path 5A 5B into the database see Table 5 8 Update documentation PRD 0000022520 Rev 00C Page 31 of 32 MNKS006 0 0 4 08 ap MIC Technologies MPU Transducer Replacement Procedure The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the
19. v 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter Caution Special attention is required to avoid damages to flame paths see Picture 2 If flame paths are damaged parts must be replaced and cannot be repaired Flame Path M20 x 1 5 Thread Picture 2 Flame Paths PRD 0000022520 Rev 00C Page 7 of 32 MNKS006 0 0 4 08 VIC Technologies MPU Transducer Replacement Procedure This page is intentionally left blank Page 8 of 32 PRD 0000022520 Rev 00C MNKS006 0 0 4 08 MPU Series B Ultrasonic Gas Flow Meter DISMOUNTING PROCEDURE This procedure describes how to remove and mount a Transducer with NO PRESSURE in the pipeline This can only be done before the spool piece is installed in the pipeline or if the operational pressure is atmospheric and the pipeline is drained of any lethal or flammable gases If it is necessary to remove a transducer from the MPU without shutting down the line this is possible by using the Transducer Retraction Tool This tool may be ordered as an option and will be delivered with its own operational manual Alternatively this can be done by the supplier s service engineer bringing the suppliers own Transducer Retraction Tool If the transducer is replaced by a new one don t forget to update the acoustic path length and the zero calibration data in the database See USM 0000020565 User Manual MPU Series B 1 for details Unless otherwise stated nuts and
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