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LEFM 220C Ultrasonic Flowmeter User Manual

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1. Terminal Name Requirement TB8 1 5 Volts 5 0 1 Volts TB8 2 12 Volts 12 0 5 Volts TB8 3 12 Volts 12 0 5 Volts TB8 4 Ground Electrical Ground OO a 2 _ Bee N e LC e a mio 5 m 8 EE sl ea Figure 4 2 APU Backplane Terminal Block to Inspect Voltages Note Figure is displayed sideways Maintenance Page 40 November 2008 LEFM 220 User Manual IB0204 Rev 17 5 V 1 5A F2 Very Fast Acting 150 VDC 0 125A F1 Very Fast Acting FF 12V 0 5A F7 Very fast Acting FF 12V 0 5A F10 Very Fast Acting FF ane Bg CEPS Chr E LE eta 2 mi Top of Transmitter s on tar Tomat TS Gu Baul SE s Ex pelt D p e br is Figure 4 3 APU Fuse Location Note Figure is displayed sideways November 2008 Page 41 Maintenance 1 0204 Rev 17 LEFM 220 User Manual 44 Metering Section and Transducer Cables Metering Section Inspection Perform the following inspection and maintenance tasks a Inspect the meter body Verify meter body has not suffered any damage A WARNING DO NOT OPEN WHEN ENERGIZED BEFORE INSP
2. Figure 8 3 4X Enclosure Units Inches mm Appendix B Page 70 November 2008 LEFM 220 User Manual IB0204 Rev 17 CIRCUIT BREAKERS FUSES FOR 24 VOLT DC VERSION 3 I I 1 m __ _ __ __ gt gt gt IC I I I I I l l I I I I I I JHevied Fevied l FT 1 5 89 I E sm IM SS I I ISPLAY mE w 5 4 L amp sl F i LE I d 2 pl os LE 2998 28182185 ___ w l r FEL S N Cw e BPL TBI BPL TB4 BPL TB IM 11 TRANSDUCERS RS232 DIG DU l x 69 L pand i BACKPL ANE Power Terminals Figure 8 4 NEMA 4X Enclosure with Door Open November 2008 Page 71 Appendix B 1 0204 Rev 17 LEFM 220 User Manual Transducer Cable Identification Transmitter Termination Meter Body Ju
3. aston 5 3 REPROGRAMMING THE 5 5 3 1 MODBUS ID AND BAUD RATE 6 0 RECOMMENDED SPARE PARTS 6 1 DOMESTIC US AND CANADA nette eR u ni 6 2 INTERNATIONAL 2 u ere poteet eget dpi bee dida 7 0 APPENDIX A OPTIONAL DISPLAY CONFIGURATION 7 1 INSTALLATION i eene amu tete eti pe pese ata u De en nee 7 2 PROGRAMMING THE DISPLAY aaa eene 8 0 APPENDIX B 8 1 LEGACY SYSTEM INSTALLATION 88000000000 8 1 1 FIELD TERMINATIONS en iii 8 1 2 GROUNDING BAR THING erit eee ee entrer ete tendere ng 8 1 3 MMIX _ 8 1 4 FEOWDIREGCTION M 9 0 APPENDIX C 9 1 ATEX CERTIFICATIONS DOCUMENT IB0613 eene Table of Contents Page ii LEFM 220C User Manual November 2008 LEFM 220 User Manual IB0204 Rev 17 INTRODUCTION The Caldon LEFM 220C Ultrasonic Flow Meter is a highly sophisticated flow measurement system It employs the ultrasonic transit time method to measure fluid velocity and volumetric flowrate It contains advanced signal and data processing circuitry to ac
4. 4 25 N N N i 6 86 8 07 Tv MORS FACEPLATE 3 4 CONDUIT ENTRANCE INFRARED WIND W PLUGS TWO PLACES _ co I I ET CT I1 IC L SE 9 1 2 CONDUIT ENTRANCE W PLUGS FOUR PLACES Figure 8 1 Explosion Proof Enclosure Units in Inches mm Appendix B Page 68 November 2008 LEFM 220 User Manual IB0204 Rev 17 CIRCUIT BREAKERS FUSES FOR 24 VOLT DC VERSIONS PU ASSEMBLY mi 3 31 TES TB4 TRANSDUCERE LU LI id OUT 5 ___ BACKPLANE POWER TERMINALS Figure 8 2 Explosion Proof Enclosure with Cover Open November 2008 Page 69 Appendix B 1 0204 Rev 17 LEFM 220 User Manual 08 lt 8 92 226 49 12 70 DESE 2 lt 8 00 203 20 te 11 2 67 1 75 44 45 38 _ SERIAL NAMEPLATE NAMEPLATE PATENT 1 DE 3 4 CONDUIT ENTRANCE _ W PLUGS TWO PLACES 4 UIT ENTRANCE PLUGS FOUR PLACES IN FEN FEN EN iw
5. Equipment Specifications Page 14 November 2008 IB0204 Rev 17 LEFM 220C User Manual I CI 0 01 8 8 8 8 gt 2 2 9 ON gt 249 249 249 801 2497 001 gt 245 99 06 vy 9v seuou wu f 59 f 59 I seuou seuou 59 Na L em T 9 1 wv 3ZIS 3419 cation 1 Equipment Specif d Weights imensions an D Temperatures 15 S vo 5h gt T ei N Table 1 4 November 2008 1 0204 Rev 17 LEFM 220 User Manual Equipment Specifications Page 16 November 2008 LEFM 220 User Manual IB0204 Rev 17 2 0 INSTALLATION The transmitter and meter body of the LEFM 220C are shipped as a matched set The exact physical properties acoustic properties and calibration of the meter body are pre programmed into the transmitter When installing multiple units ensure that the transmitter and meter body pair remain together 220C LT units outfitted for cryogenic temperatures will have short cables with connectors attached to the meter body The mating cables are attached to the trans
6. 7 I Output Specific Gravity 0 4 20mA Interface Module 8518 DIG OUT OO X L so m Output Temperature 0 4 20 mA Interface Module i BE E slo iH E Output Flow or VOS 0 4 20mA Interface Module 2 5 Output Flow 0 4 20mA Interface Module Pulse Output Interface Module E EE n Qo RS 232 RS 485 OBETLL TI TIT Q a Dal ess HB G 2 8 208 EIRE PELI __ 5 gt gt com B ANALOG IN ILLILILLILI IMIC Input Fluid Density 0 4 20 Frequency CLILILILIIII IC D Input Fluid Temperature 0 4 20mA or RTD Module Input Pressure 0 4 20mA Interface Module Ii Y TRANSDUCERS Input Meter Temperature 0 4 20mA or RTD Module LLILILILILLILIL IC un Os di 896 N 8 8 54500 um Figure 4 8 APU Backplane Interface Module Location Typical November 2008 Page 51 Maintenance 1 0204 Rev 17 LEFM 220 User Manual Maintenance Page 52 November 2008 LEFM 220 User Manual IB0204 Rev 17 5 0 TROUBLESHOOTING AND DIAGNOSTICS FOR THE ULTRASONICS 5 1 Diagnostics The 220 Transmitter interfaces via serial port infrared port to external devices The 220 uses the MODBUS pr
7. Ros fret 1000 100 0 to 100 MB34 01 Typical See Table 4 2 1000 100C 0 4 20 mA TB2 11 18212 je 10040 Shield TB2 13 MB34 01 Typical See Table 4 2 Sed fr 4 20mA MB32 01 0 20 MB32 02 Table 8 3 Analog Input Customer Connection Locations Located on Backplane Typical Module Analog Output Signal Description Terminus Location 4 0 20 mA high TB3 1 Flow Shield TB3 2 5 4 0 20 mA low 3 3 4 0 20 mA high 3 4 Sound Velocity Shield TB3 5 6 4 0 20 mA low 3 6 4 0 20 mA high TB3 7 Temperature Shield TB3 8 M7 4 0 20 mA low TB3 9 4 0 20 mA high TB3 10 Specific Gravity Shield TB3 11 M8 4 0 20 mA low TB3 12 Table 8 4 Analog Output Customer Connection Locations Located on Backplane Note Other variables can be mapped to the analog outputs Contact Cameron s Measurement Systems division for specifics November 2008 Page 73 Appendix B 1 0204 17 Appendix LEFM 220 User Manual Pulse Output Signal Description Terminus fat 5 V A leads B by 90 degrees to indicates forward flow 2 5 2 5 V B leads by 90 degrees to indicate reverse flow 5 3 0 V indicates alarm condition meter Status 5 V indicates normal operation TB5 5 Ground Ground TB5 7 Table 8 5 Pulse and Digital O
8. ATEX Only Construction of Manifold to Junction Box Connection Note The specific ATEX approved cable gland as specified on ATEX Certificate must be used See Appendix C of this manual for a copy of the ATEX Certificate November 2008 Page 11 Equipment Specification LEFM 220 User Manual IB0204 Rev 17 Imensions D BO z 2 x Lr Loss L Lesa seen sees 8215 3dld Weights imensions 4 Inch through 16 Inch Meter Body D Table 1 2 November 2008 Page 12 ications f i Equipment Spec IB0204 Rev 17 LEFM 220C User Manual 288 902 4 8241 6211 0882 0092 2297 Zr 2297 999 0976 2257 osre 2257 90 086 0016 0912 275 2197 07081 0708 07081 07081 07081 07081 07081 EN L 21 Gel SEE 01 01 768 026 2257 07081 raz 0 6801 218 0072 0641 2197 2197 2197 07081 07081 622 96 9 LL 2211 6111 1401 1901 2001 2201 226 696 616 6 6 917 69 09 Sly 2 66 686 C88 296 8911 LL
9. Defines the different glands seals that may be used with the device Where W is set to D the temperature range is 170 C to 130 C W is set to E the temperature range is 170 C to 130 C W is set to F the temperature range is TA 170 C to 130 C Y Defines the different whether the device has an elbow in the fittings Where Y is set to R There is an elbow in the fittings Y is set to S There is no elbow in the fittings 22 Defines the different whether the device has Tee or an adaptor in the fittings Where Z is set to T There is a tee in the fittings Z 1s set to F There is an adaptor used instead of a tee in the fittings H Defines the different sizes can be any value from 01 to 40 Equipment Specifications Page 8 November 2008 LEFM 220C User Manual IB0204 Rev 17 Note The ambient temperature range for the ATEX approved glands is limited to 50 C The meter body is rated to 170 C and must be under thermal insulation WARNING The ATEX certificates are located in an appendix of this manual and define the conditions for safe use of the meter manifold and the transmitter The temperature ranges listed are for the enclosures indicated on the certificate The temperature limit of the meter assembly is dependent on the temperature limits for the components used to connect the meter to the electronics and may
10. Disconnect connectors from Electronics Check continuity and isolation of cables shield positive negative earth ground and impedance of transducers Verify cable impedance positive negative disconnected from transducer and shield disconnected from electronics as follows Positive to negative gt 10MQ Positive to shield gt 10 0 Negative to shield gt Shield to earth ground gt 10 0 AN NOTE DO NOT USE a high voltage instrument like a Meggar to test cables transducers Reconnect cables when completed Maintenance Page 48 November 2008 LEFM 220 User Manual Transducer Impedance DO NOT OPEN WHEN ENERGIZED BEFORE INSPECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKER TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD WARNING IB0204 Rev 17 Disconnect connectors from Electronics Check continuity and isolation of cables shield positive negative earth ground and impedance of transducers Verify cable impedance positive negative disconnected from transducer and shield disconnected from electronics as follows Positive to negative gt 10MQ Positive to shield gt 10MQ Negative to shield gt 10MQ Shield to earth ground gt 10MQ AN NOTE DO NOT USE a high voltage instrument like a Meggar to test cables transducers Reinstall cables when completed 4 6 Analog Input Alignment and Verification Procedure The LEFM 220C may have up to three
11. Also pressure loss through a system can allow gas to break out flash Operators must be aware of these conditions operations and assure that the amount of gas reaching the sensor is kept to a minimum Slugs of gas in the flow stream do not damage the meter Continuous presence of gas in the LEFM 220C will give a fault indication In the worst case all the sensors will stop indicating and no measurements will take place 86 21 83 j 8 25 453 55 1 eas TS T d BILL AP SR 31 TYP Y 7 87 Jk gt g di i 12 4 X gt t gt SERIAL NO DF ee H NAMEPLATE Y H PATENT i ix 9 75 NAMEPLATE 18 2 463 55 247 65 4 MTC d gt k gt H 5 a e gt u Ke 7 585 7 i lt gt I bs a Z i 3 MS NC UU Es ET gt 3 4 CONDUIT ENTRANCE eee W PLUGS TWO PLACES 11 25 285 75 Iu Ei I ET FT 8 2 CONDUIT ENTRANCE W PLUCS FOUR PLACES VI 492 13 Figure 2 1 Installation Expl
12. Step 6a Step 6b Step 6c Step 6d Step 7 Step 8 Power down the LEFM 220C and disconnect the transducer to be replaced from the terminals in the junction box note upstream and downstream junction boxes Remove manifold cover remove socket head screws either M5 8 size Remove transducer internals Use O Ratchet socket head inch socket for the inch 12 5 mm transducer housing and 3 4 inch socket for the 1 inch 25 mm transducer housing Typically 4 inch to 10 inch meter bodies contain inch transducer housings and 12 inch and larger meter bodies contain 1 inch housings Replace transducer Verify the transducer housing is clean and free from dirt Re install the transducer internals with fresh lubricant to the transducer face Thread the wires of the transducer though the compression spring and the spacer Apply silicone lubricant to the transducer face before inserting into the transducer housing Insert the transducer and components into the housing until the parts bottom out Route the wires though the compression screw and then apply lubricant to the threads Screw into the transducer housing and tighten This will load the compression spring Connect the new transducer to the junction box terminals Re install the manifold and junction box cover Torque socket head screws M5 size screws to 10 in Ibs 1 1 nm or the 8 size screws to 30 in Ibs 3 4 nm November 2008 Page 43 Maintenance 180204 R
13. Terminations BPL TB5 Backplane Transducer Analog Input Serial Analog Output Terminations Terminations Communications Terminations BPL TB2 BPL TB3 BPL TB4 Figure 2 4 NEMA 4X Enclosure with Door Open November 2008 Page 23 Installation 1 0204 Rev 17 LEFM 220 User Manual Transducer Cable Identification Transmitter Termination Meter Body Junction Box Wire Name Device Terminal Device Terminal t TBI 1 1 1 UP Shield TBI 2 Upstream JBOX TB1 TBI 3 2 t TBI 4 3 2UP Shield TBI 5 Upstream JBOX TB1 1 6 4 1 13 13 1 DN Shield 14 Downstream JBOX TB1 1 15 14 1 16 15 2 DN Shield 181 17 Downstream JBOX TB1 A TB1 18 16 RTD TB2 1 9 RTD TB2 2 10 RTD Shield TB2 3 Upstream JBOX TB1 RTD TB2 4 11 RTD TB2 5 12 Table 2 1 LEFM 220C Transducer and RTD Terminations 2 junction boxes Installation Page 24 November 2008 LEFM 220 User Manual IB0204 Rev 17 Meter Temperature See Tables 2 1 2 2 amp 2 3 Typical See Table 4 2 1000 Pt 100 C to 100 pa a a EE Fluid Temperature MB34 01 Typical Sco Table 4 2 0 4 20mA 2 16 Density Shield TB2 18 0 4 20mA 2 20 Table 2 2 Analog Input Customer Connection Locations Located on Backplane Typical Module Analog Output Signal Description Terminus Location 4 0 20 mA high 4 1 Flow Shield TB4 2 M5 4 0 20 mA lo
14. error or that software will run in an uninterrupted fashion Seller provides all software as is THERE ARE NO WARRANTIES EXPRESS OR IMPLIED OF MERCHANTABILITY FITNESS OR OTHERWISE WHICH EXTEND BEYOND THOSE STATED IN THE IMMEDIATELY PRECEDING SENTENCE Seller s liability and Buyer s exclusive remedy in any case of action whether in contract tort breach of warranty or otherwise arising out of the sale or use of any products software supplies or materials is expressly limited to the replacement of such products software supplies or materials on their return to Seller or at Seller s option to the allowance to the customer of credit for the cost of such items In no event shall Seller be liable for special incidental indirect punitive or consequential damages Seller does not warrant in any way products software supplies and materials not manufactured by Seller and such will be sold only with the warranties that are given by the manufacturer thereof Seller will pass only through to its purchaser of such items the warranty granted to it by the manufacturer Ultrasonics Customer Service amp Technical Support 1000 McClaren Woods Drive Coraopolis PA 15108 USA Tel 724 273 9300 The ultrasonic measurement group of Cameron WWW c a m com MEASUREMENT SYSTEMS HOUSTON 281 582 9500 NORTH HEAD OFFICE AMERICA USA CANADA UK SCOTLAND CHINA UAE 1 800 654 3760 ms us Q c a m com ASIA PAC
15. 0204 Rev 17 LEFM 220 User Manual vs 18348 AEH RUN MODE If panel T lock ON ENTER CODE jee 0000 If code _ RATE HIGH G amp S 20mA incorrect If code correct 1 DIVIDER PULSE OUT CLEAR TOTAL E n CALIBRATE YES or NO 3 5 or 4 5 fo 35 5 RATE DISPLAY 45 Jor 4 M CALIBRATE LOW input 4 press E a DECIMAL 258 TOTAL DECIMAL CALIBRATE HIGH input 20mA press E GAL TOTAL a CALIBRATE HIGH DESCRIPTOR 00 DONE Brest SEC Qo MIN scaling HRS blank INPUT TYPE 0 a M RUN MODE Figure 7 1 Programming Flow Chart Appendix A Page 66 November 2008 LEFM 220 User Manual 180204 Rev 17 8 0 APPENDIX B 8 1 Legacy System Installation 8 1 1 Field Terminations The following installation instructions are for the legacy systems which have a green circuit board For new units with blue circuit boards refer to Section 0 The wiring should be routed to the transmitter in shielded conduit that meets site environment specifications terminations should be made according to Table 8 1 through Table 8 7 For full environmental temperature range all wiring conductors should be rated for a minimum of 194 F 90 supply wiring must be rated to 300 volts AC 18 AWG Equipment must be installed by a licensed electrician in accordance with NEC CEC and local codes As a minimum a disconnect switch shou
16. C CAMERON Measurement Systems CALDON ULTRASONICS LEFM 220C Ultrasonic Flowmeter User Manual Manual No IB0204 Rev 17 1 0204 Rev 17 LEFM 220 User Manual Caldon is a trademark of Cameron International Corporation Cameron LEFM is a registered trademark of Cameron Modbus is a registered trademark of Modbus Organization Inc Copyright 2008 Cameron International Corporation Cameron All information contained in this publication is confidential and proprietary property of Cameron Any reproduction or use of these instructions drawings or photographs without the express written permission of an officer of Cameron is forbidden All Rights Reserved Printed in the United States of America Manual No IB0204 Rev 17 November 2008 LEFM 220 User Manual 1 0 1 1 1 1 1 1 1 2 1 2 1 2 1 1 2 2 1 2 3 1 3 1 3 1 1 3 2 1 3 3 1 3 4 1 3 5 1 3 6 2 0 2 1 2 1 1 2 1 2 2 1 3 2 1 4 2 2 2 2 1 222 2 2 3 2 2 4 2 3 3 0 3 1 3 2 3 3 3 4 3 5 November 2008 Page 1 1B0204 Rev 17 TABLE OF CONTENTS EQUIPMENT SPECIFICATION 1 EBEM 220C EQUIPMENT n tet Eee a ce i etd eet Me eee 1 LEEM TRANSMITTER s ini tpi e e eiui 1 LEEM 220C METER BODY SECTION nete ertet de eter t eee ent es 2 220C MODEL NUMBER rtt ttt ttp EH Ete re coe eet et EEUNA O tEn epe e dater 12 3 220 MODEL NUMBER u eot et Re pee Ra eO ERR aan yau Sm aquy 3 L
17. MODBUS or Caldon Interface Software If the path gains are high 85db and higher then the signals may be too weak to operate Weak signals can be caused by any of the following listed from most likely to least likely e Line is not full of liquid e Line pressure is too low for the vapor pressure Cable wire from the meter to the transmitter is damaged Transducer coupling needs to be replaced with grease couplants only November 2008 Page 55 Troubleshooting 1 0204 Rev 17 LEFM 220 User Manual e Transducer has failed Step 6 Determine Which Transducer Has Failed Except for the earliest versions of the products the LEFM 220C has a diagnostic feature for determining which transducer s if any needs attention The transmitter continuously tests each transducer individually in a pulse echo mode Pulse echo means that a transducer transmits acoustic energy across the liquid echoes the energy off the opposing transducer and then receives the energy it has sent In pulse echo mode the transmitter then computes the gain for both upstream and downstream transducers Normally the gains for the upstream and the downstream pulse echo tests are equal However if there is a failed transducer due to wiring coupling etc then one transducer will have a higher gain Using the regular acoustic paths and the diagnostic pulse echo paths follow these steps to determine which transducer to evaluate 1 Review the SNR Signal to Noise Rat
18. OFF 833 um 240 OFF OFF Netused 446 NotUsc TERNAL BLOCK Hy 9600 ON Ork NotUsed 104 19200 ON CN ELOSR M 57600 Orr Orr 176 G w Generator cons In setup switches 2 amp 4 shoul be OW making teminal beck 5 the Bera line end erminel bleck D the Daca e line 1 46 6mm Terminal Block Configuration iu Sim 5 232 TD input A RD output B SIG GND F 10 to 30VDC PWR GND RS 422 485 TDA G Tx inverted or output ary abana RDA K Rx inverted or input E TDB Tx non inverted or output gt RDB L Rx non inverted or input ISO GND Isolated RS 422 485 Signal Ground Common Figure 8 6 RS 485 Setup and Configuration Appendix B Page 76 November 2008 LEFM 220 User Manual IB0204 Rev 17 CM lel VA O Ss SS RS 232 to E ns 485 gt
19. RS 485 Switch and Jumper Position Installation Page 28 November 2008 LEFM 220 User Manual Fuse Size Type Function LI 3 15 Amp time delay Electronics F2 5 0 Amp fast acting Heaters for cold ambient applications November 2008 Figure 2 6 24 Volt DC Fuses Page 29 FUSE HOLDER DETAIL 1B0204 Rev 17 Installation 1 0204 Rev 17 LEFM 220 User Manual WARNING DO NOT OPEN WHEN ENERGIZED 23 Meter Installation Check Out BEFORE INSPECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKER TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD The following steps are recommended to checkout a meter s installation See Section 5 for Troubleshooting and Caldon EFP 70 Step 1 Verify meter s installation is hydraulically acceptable horizontal preferred and adequate upstream hydraulics Upstream pipe diameter is concentric with meter body Step 2 Verify all field terminations have proper continuity and isolation from each other and earth Verify connections are good with respect to insulation Step 3 Verify electronics turn on all LEDs lighted Step 4 Verify ModBus communications Use Caldon LEFMLink software or plant computer to communicate Verify meter operation according to Section 5 Step 5 Verify Analog Outputs preferably using LEFMLink to force outputs current and pulses Forcing outputs verifies connections to site instruments Verify observed forced outputs are within 0 196 o
20. The LEFM 220C transmitter is a wall mount unit with the following special features Standard Outputs of Pulse 0 5 V standard other amplitudes are optional the meter factor is programmable The standard factory delivered K factors are listed in Table 1 1 below Optional Analog Inputs of Product temperature RTD 4 20 or 0 20mA Product pressure 4 20 or 0 20 mA Up to Two of the Following Optional Analog Outputs of Flow 4 20 or 0 20 mA Density 4 20 or 0 20 mA Sound Velocity 4 20 or 0 20 mA Temperature 4 20 or 0 20 mA Additionally any internal ModBus input register can be mapped to any analog output The LEFM 220C transmitter contains signal processing and digital computing circuitry and power supply equipment November 2008 Page 1 Equipment Specification 1 0204 17 LEFM 220 User Manual Size Maximum Flow K Factor Maximum Flow K Factor BPH P bbl m3 h P m3 Inches DN 4 100 2 050 2 000 325 12 600 6 150 4 650 1 000 740 6 300 8 200 8 150 500 1 290 3 150 10 250 12 800 350 2 030 2 200 12 300 19 300 250 3 070 1 570 14 350 23 600 200 3 750 1 000 16 400 28 700 150 4 560 940 18 450 41 000 100 6 500 630 20 500 50 000 85 7 900 530 24 600 72 000 60 11 500 380 26 650 87 000 45 13 900 280 28 700 100 000 40 16 200 240 30 750 115 000 35 18 700 220 32 800 130 000 30 21 300 185 34 850 150 000 25 24 200 165 36 900 165 000 28 27
21. Voltage Troubleshooting and Maintenance With the unit energized and the system software executing verify by looking at the top of the APU cards that the following indicator lights are on Green LED Normal State ON indicates 5 VDC power supply is operating Top Edge of Board Green LED Normal State ON indicates 12 VDC power supply is operating Green LED Normal State ON indicates 12 VDC power supply is operating Red LED Normal State ON indicates 150 VDC power supply is operating Red LED Normal State ON flashing at high rate indicates transmit pulse is operating normally REG EEE ae EX Test Point 4 Test point for received ultrasonic signal for each path ENE 5 2285 TP3 Test Point 3 Test point used for external 2 trigger of an oscilloscope Figure 4 1 APU LED Indicators If any of the power supply voltage lights are not on please check the backplane voltage See terminal block on Figure 4 2 See Table 4 1 If the power supplies are functioning properly then the APU fuses may need to be replaced If not then the power supply should be tested and possibly replaced November 2008 Page 39 Maintenance 1 0204 Rev 17 LEFM 220 User Manual The following table provides the specified backplane voltage Table 4 1 Required Backplane Test Voltages
22. Z E BT 19880 al 9 aut Pe 8 L Ea dE3 Q ZZ N 4 2 A Z Figure 8 7 RS 485 Converter Location RS 485 Module Wire Color Transmitter Reference 485 D Orange BPL TB4 1 TD input 485 A Yellow BPL TB4 3 RD output 485 B Black BPL TB4 2 SIG GND 485 F Red BPL TB8 2 12 VDC 485 C Blue BPL TB8 4 PWR GND Table 8 7 RS 232 to RS 485 Wiring Instructions November 2008 Appendix B 1 0204 Rev 17 LEFM 220 User Manual Appendix B Page 78 November 2008 LEFM 220 User Manual IB0204 Rev 17 9 0 APPENDIX C 91 ATEX Certifications Document IB0613 See the following ATEX certifications for conditions of safe use for the meter manifold and the transmitter The temperature ranges listed are for the enclosures indicated on the certificate The temperature limit of the meter assembly is dependent on the temperature limits for the components used to connect the meter to the electronics and may limit the temperature limits for the assembled meter See the meter nameplate for the temperature limit of the system as assembled November 2008 Page 79 Appendix C WARRANTY LIMITATION OF LIABILITY Seller warrants only title to the products software supplies and materials and that except as to software the same are free from defects in workmanship and materials for a period of one 1 year from the date of delivery Seller does not warranty that software is free from
23. analog inputs and an RTD input for meter body temperature Each input signal is conditioned before it is converted to a digital input There are several input modules available for the temperature Table 4 2 The input options for pressure are MB32 01 4 20 mA input and MB32 02 0 20 mA input Table 4 2 Temperature Input Modules Available Part Input Type MB32 01 4 20 mA MB32 02 0 20 mA MB34 01 100Q Pt 100 C to 100 C MB34 02 100Q Pt 0 C to 100 C MB34 03 100Q Pt 0 C to 200 C MB34 04 1000 Pt 0 C to 400 C MB34 C 01 100 Cu 0 C 0 C to 100 C MB34 C 02 100 Cu 25 C 0 C to 100 C MB34 N 01 10Q Ni 0 C to 300 C 5B35 Custom 100Q Pt 200 C to 100 C November 2008 Page 49 Maintenance 1 0204 Rev 17 LEFM 220 User Manual The inputs are scaled to linearly convert either 4 20mA or RTD inputs between the maximum and minimum ranges Adjustments to the analog input ranges can only be changed through the software interface See the LEFMLink manual for instruction on configuring this range Failed inputs will typically go to their lowest range For example a 4 20 mA pressure input scaled to 0 1000 psig will go to 0 psig if the input is removed However if the LEFM 220C does not respond to calibrated inputs then the following should be checked Connection to the backplane see Section 0 Analog Input Interface Module gt Meter Body Temperature Location M1 g
24. 1500 C Carbon Steel D Duplex Stainless Steel Equipment Specifications Page 4 November 2008 LEFM 220 User Manual Transmitter Part Code Key H Hydrocarbon Product Product Type 2 LEFM220G 4 LEFM240C S SoundTrack LEFM200E T 2 Transmitter Enclosure Type G NEMA 4X X Explosion Proof Al S Explosion Proof SS Power Supply 12 120 VAc 2 240 VAc 3 24 VDc Transducer Frequency 10 MHz November 2008 Analog Input Options 0 None 12 2 2 1 2 4 3 5 1 6 2 7 1 2 ANS 8 VI 4 9 VVI 1 VI 4 2 V I 4 1 2 4 3 4 D 1 3 4 E 2 3 4 F 1 2 4 2161AB0000C L Page 5 IB0204 Rev 17 0 Standard C Custom Serial Options 0 IR Board 8 RS 485 No IR Board N No IR Board B IR Board RS 485 Analog Output Options 0 None 1 1 2 2 3 1 2 4 5 1 3 6 2 3 7 1 2 3 8 4 9 A O 1 A O 4 A A O 2 A O 4 B A O 1 A O 2 A O 4 C A O 4 D A O 1 A O 3 A O 4 E A O 2 A O 3 A O 4 F A O 1 A O 2 A O 3 A O 4 Equipment Specification 1 0204 17 1 3 1 3 1 LEFM 220C S
25. 200 145 Table 1 1 Standard Delivered Factors 11 2 LEFM 220 Meter Body Section The Meter Body Section or Metering Section as 1t Is sometimes referenced contains the acoustic transducers that transmit and receive the ultrasonic pulses that pass through the fluid The meter body is a specially designed section of pipe which contains two pairs of housings into which the ultrasonic transducers are installed The housings are positioned in a configuration to provide two chordal paths at 45 to the flow direction and are spaced in accordance with the Gaussian Method of flow integration 1 1 2 1 Transducers Each transducer transmits and receives ultrasonic pulses typically 0 5MHz 1 0 MHz or 1 6 MHz The transducer modules contain piezoelectric crystals and are contained in housings that are designed to permit module removal from their housings for maintenance without affecting the pressure boundary Equipment Specifications Page 2 November 2008 LEFM 220 User Manual IB0204 Rev 17 12 LEFM 220C Model Number Each LEFM 220C has a Model Number and part code that completely defines the construction and features of that flow meter The following subsections define the Model Number and part codes 1 2 1 LEFM 220C Model Number LEFM 2500 6 40 55 150 Meter Type L Enclosure Type T 2 Transmitter GP NEMA 4X M Meter Body EX Aluminum Explosion Proof Meter Size Inches ANSI Elange Rating Schedule 150 40 300
26. E PARTS 61 Domestic US and Canada Qty Qty Qty Qty Qty Qty Qty Qty Qty Qty 1 1 2 1 1 1 2 1 1 1 F1 Littelfuse 274 125 125mA radial lead fuse very fast acting FF F2 Littelfuse 27201 5 1500mA radial lead fuse very fast acting FF F7 F10 Littelfuse 274 5 500mA radial lead fuse very fast acting FF Transducer appropriate frequency Transducer Grease small tube Transducer Cryogenic Couplant 220C LT Only Pulse Output Interface Module P N AD261BND 0 4 20 mA Interface Module Input See Table 4 2 Section 4 6 4 20 mA Interface Module Output See Section 4 7 Serial Communications Kit Includes LEFMLink Software 6 2 International Same as above except includes Qty 1 APU Board Note The APU Board contains electrolytic capacitors In order to maintain proper operation of these components they must have a functional test at least once every five 5 years Contact Cameron s Measurement Systems division for the specifics of the functional test November 2008 Page 61 Recommended Spare Parts 1 0204 Rev 17 LEFM 220 User Manual Recommended Spare Parts Page 62 November 2008 LEFM 220 User Manual IB0204 Rev 17 7 0 Appendix A Optional Display Configuration An optional 4 20 mA display 15 available to display the flow and totalized flow locally The analog output for flow is used to power this display The display should be used as an indicator of flow Hig
27. ECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKER TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD b Check connectors on transducers cables to verify they are undamaged Clean connectors with electronic contact cleaner if fouled or corroded Verify all mounting hardware is secure Transducer Cable Inspection Inspect transducer cables as follows WARNING DO NOT OPEN WHEN ENERGIZED BEFORE INSPECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKER TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD a Verify each transducer cable has not suffered any damage Check connectors on cables at each end to verify each is undamaged Clean connector with electronic contact cleaner if fouled or corroded Replace any damaged cable or connector b Disconnect transducer cables from LEFM 220C Check continuity and isolation of cables Maintenance Page 42 November 2008 LEFM 220 User Manual IB0204 Rev 17 Reinstall transducer junction box covers after completing all inspections Be careful not to cut any wires in junction box while threading on junction box covers 4 5 Transducer Installation Procedure Should the unlikely event occur in that a transducer fails this section defines the procedure for transducer installation The LEFM 220C system may require verification when a transducer is replaced or recoupled The transducer should be installed using the following procedures Step 1 Step 2 Step 3 Step 4 Step 5 Step 6
28. EFM 220C LT MODEL NUMBER 2 eene 3 EEEM 220C PART CODE ert et e CR Oe e i ab ete e e in i eet 4 LEEM 220C SPECIFICATIONS wastes RUA ae callie 6 a atap 6 APPROVALS TRANSMITTER LEFM 220 7 APPROVALS METER BODY 220C M AND 220 7 ENVIRONMENT TRANSMITTER AND METER BODY nennen 9 LEFM 220C AND 220C LT WITH J BOXES METER BODY SPECIFICATIONS 10 LEFM 220C LT METER BODY SPECIFICATIONS WITHOUT J BOXES 14 INSTALLATION 17 tte te ed pep died do E ctr 17 TRANSMITTER MOUNTING ree eee ciet rite de e doe de ea ped esses 17 FELD TERMINATIONS 18 TERMINATIONS DIGITAL SIGNALS ec 18 GROUNDING EARTHING METER BODY AND TRANSMITTER eren 18 BLOW METER BODY tice ue oue ERE e Ue er e UN Ente te u IER edges 19 METER BODY TERMINATIONS enne 19 UPSTREAM AND DOWNSTREAM PI PING rennen rennen nennen nennen 19 FLOW DIREGTION 5 2 5 8 19 GAS AIR IN THE FLOW STREAM u
29. IFIC ALGERIA MALAYSIA 603 2287 1039 ms asiapacific c a m com EUROPE MIDDLE EAST amp AFRICA 44 1243 826741 ms uk c a m com INDIA KENYA www c a m com flo caMERON
30. LL 6VLL 0901 2601 86 9601 226 226 028 0797 GLY Sev 6 817 oer 886 80 596 686 eve VX 99C Nu 240 07581 EL 062 86 TE 07991 99 9CC 668 n 21 vile v6l v6l v8l p8l v y vol F 91 YSL 9921 1971 8061 6221 9911 9011 XV 96 C 09 864 474 ps SS 898 919 6 9 9 8 Ger 091 006 091 006 006 098 088 008 008 097 09 006 091 006 091 094 091 00 091 006 009 006 091 006 009 006 091 6 9 00 00 00 091 3 5MV19 002 002 059 059 96 96 yt 26 0 0 8c 92 92 ve ve ve ve 02 02 81 8c 8l 8l 8L 3ZIS Adid d Weights imensions an 18 Inch through 36 Inch Meter Body D Table 1 3 1 Equipment Specif 13 November 2008 1 0204 Rev 17 LEFM 220 User Manual 1 36 LEFM 220C LT Meter Body Specifications Without J Boxes 2 b np gU T5 D MER perg Wy exp i TRANSDUCER 7 EXTRACTION Figure 1 2 Construction Outline Drawing 220C LT Cryogenic Temperatures Note Approved Seal at the End of the Tee Fitting is required The specific ATEX approved cable gland as specified on ATEX Certificate must be used See Appendix C of this manual for a copy of the ATEX Certificate
31. R TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD No external supports or special mounting pads are specifically required or recommended for the LEFM 220C meter body However the piping immediately upstream and downstream of the flow meter should be well supported in accordance with good piping practices and site seismic requirements See Table 1 2 and Table 1 3 for weights and sizes of the LEFM 220C Flow Meter The flow meter body can be installed in either horizontal or vertical piping runs When it is installed in horizontal piping the acoustic paths should be horizontal to decrease the likelihood of the accumulation of water gas or debris in the sensor wells The flow meter body is typically fabricated of stainless steel carbon steel or duplex steel depending on customer requirements The flow meter is designed such that it is as strong as or stronger than pipe and flanges of the same schedule pressure class and material Site stress analysis can conservatively treat the meter as equivalent pipe 2 2 1 Meter Body Terminations The meter body terminations are defined in Table 2 1 For hazardous environments the connections from the meter body junction box to the electronics must be through rigid conduit or approved equals with stopping boxes seal fittings installed within 18 inches 450 mm of the junction box es For ATEX see the certificate for the conditions for safe use 2 2 2 Upstream and Downstream Piping It is recommended
32. STD 600 80 900 100 1500 120 Material 160 XXS SS Stainless Steel 0 625 CS Carbon Steel 0 750 DS Duplex Stainless Steel 0 875 1 2 2 LEFM 220 LT Model Number Cryogenic LEFM LT M 6 40 55 150 EA Meter Type Enclosure Type M eter EN GP NEMA 4X EX Aluminum Explosion Proof Meter Size Inches ANSI Flange Rating schedule 150 300 STD 600 80 900 100 1500 120 160 Material XXS SS Stainless Steel 0 625 CS Carbon Steel 0 750 DS Duplex Stainless Steel 0 875 November 2008 Page 3 Equipment Specification 1 0204 Rev 17 LEFM 220 User Manual 1 2 3 LEFM 220C Part Code Meter Body Part Code Key H2S064SAWA160AC H Hydrocarbon Product Line T 0 Standard Custom 2 LEFM220C Approvals Pressure Boundary Electrical 4 LEFM240C A ASME CSA 8 LEFM280C B ASME ATEX S SoundTrack C PED ATEX E LEFM200E Transducer Frequency 10 MHz S Spool Size Inches A 0 5 1 Schedule C 0 62 4 Sch 40 D 1 05 S Standard E 0 75 Cryogenic Temperatures 8 Sch 80 0 100 Flange Type 2 120 W Weld Neck Raised Face 6 160 R Weld Neck RTJ Face X XXS T 0 625 for 26 Meter Flange Class T 0 750 for 28 and 32 Meter ANSI Class 150 T 0 875 for 34 36 Meter B ANSI Class 300 C ANSI Class 600 Material D ANSI Class 900 S Stainless Steel E ANSI Class
33. a high voltage instrument like a Meggar to test cables transducers e Check the impedance of the transducer cable If cable impedance is less than 10 Megohms then replace repair cable Check continuity of transducer cable If transducer cable continuity impedance is infinite then repair replace cable Ifa signal is present the ultrasonic transducer may need to be reseated or the acoustic coupling may need to be replaced See Section 4 5 5 3 Reprogramming the Transmitter While it is not likely there may be a time that the transmitter may need to be reprogrammed This would typically occur when an APU Board has been replaced with an inventory item not specifically assigned to a given meter body It is Cameron s policy to provide a configuration file for each spool This configuration file includes o PipeSize Pipe Transducer Frequency Acoustic Path Lengths Calibration Constant Alarm Settings K Factor Analog Input Output Scaling O Q OOO O Cameron maintains records and configuration files for all of its delivered meters The simplest way to reprogram a transmitter is to use Caldon s PC or PDA interface software procedure is as follows 1 Select appropriate ModBus ID and Baud Rate See Section 5 3 1 2 Select the configuration file for the meter body 3 Send the Configuration File Once these steps are complete the transmitter is reprogrammed The transmitter may also be reprogrammed through ModBus u
34. ber 2008 LEFM 220 User Manual IB0204 Rev 17 5 2 Path Troubleshooting The LEFM 220C System continuously checks the data quality of each acoustic path Each time the signal is sampled the APU tests the signal as follows Verifies path s signal to noise ratio SNR is higher than its threshold value Correlates the Upstream Signal with the Downstream Signal to test for cycle skipping APU rejects data that does not pass this correlation test Verifies the statistics of the computed transit time and Delta T are acceptable 5 2 1 Path Reject Status When the path status indicates that the Reject Test failed it indicates that the percentage of data that has been rejected has exceeded the LEFM 220C System thresholds The following troubleshooting sequence can be followed to pinpoint the root cause Step 1 Verify that the meter body is full of liquid For example if the top path 15 failing then the pipe may not be filled Step 2 Verify continuity for all cables Step 3 Check all APU power supply voltages If the LED for any power supply is not lit on the front of the APU card then the fuse may be blown or the power supply has failed See Section 4 3 Step 4 Check Transmit LED on APU board If transmit pulse on the APU is not lit then the APU may need a configuration file otherwise replace current APU board with a new APU board See Section 5 3 Step 5 Check the Acoustic Signal Check path gains via
35. ble 8 2 For Class I Div I or Div II environments the connections to the meter body or junction box must be through rigid conduit or approved equals with stopping boxes seal fittings installed within 18 inches 450 mm of the junction box es November 2008 Page 67 Appendix B 1 0204 Rev 17 LEFM 220 User Manual 8 1 4 Flow Direction The 220C Meter is bidirectional meter with a quadrature pulse output available to indicate direction of flow Reference Table 8 5 Pulse output A leading pulse output B by 90 indicates forward flow while pulse output leading pulse output by 90 indicates reverse flow with respect to the flow arrow of the nameplate To ensure that the flow indication 1s displayed correctly the fluid should flow in the same direction as the arrow on the meter body nameplate 86 21 85 18 25 463 55 Oo m m BI v gt 31 De 7 87 N lt gt LS A XD A B i SERIAL C3 er A NAMEPLATE EIS H ae H PATENT RI 2 75 c NAMEPLATE 8 2 465 55 MS 4 k3 g 70 0 EME L s UJ 2 ADALET e An H NAMEPLATE i Z i ri gt
36. bons 0 90 API Gravity Range The required inputs for gross to net calculations include Gross flowrate Product temperature Product pressure The specific gravity used for all the gross to net conversions are either hard coded or automatically computed by the LEFM 220C The automatic calculation is based on API tables sound velocity temperature and pressure Operation Page 34 November 2008 LEFM 220 User Manual IB0204 Rev 17 3 6 Remote Data Communications The LEFM 220C has three communication ports using the ModBus protocol See the ModBus Manual for more detail One serial port is dedicated to the IR serial interface The second and third serial ports can be accessed via direct connection RS 232 or optional RS 422 RS 485 November 2008 Page 35 Operation 1 0204 Rev 17 LEFM 220 User Manual Operation Page 36 November 2008 LEFM 220 User Manual IB0204 Rev 17 4 0 MAINTENANCE WARNING NO OPERATOR ACCESS IS PERMITTED IN THE UNIT SERVICE SHOULD ONLY BE PERFORMED BY QUALIFIED PERSONNEL 41 Introduction The purpose of this section is to provide procedures for troubleshooting and maintenance tasks which personnel can perform on each LEFM 220C These procedures may be incorporated into the customer s standard maintenance program This section includes procedures for maintaining the LEFM 220C that are designed for a trained maintenance technician to perform These procedures may require the maintenance perso
37. ches 75 mm of the enclosure The Figure 2 1 Figure 2 2 Figure 2 3 and Figure 2 4 illustrate the conduit connections for the LEFM 220C Transmitter and the transmitter layout 2 1 3 Terminations Digital Signals Terminal block TB5 has all the digital outputs and inputs These are listed as follows TB5 1 Volume pulses 0 5 Volts TB5 2 Volume pulses 0 5 Volts TB5 3 Volume pulses Quadrature 0 5 Volts See Section 2 2 3 TB5 4 Flow direction 5 Volts forward 0 Volts reverse TB5 5 Status 5 Volts normal 0 Volts alarm TB5 7 Ground return for all signals TB5 9 External trigger GSS signal this is used and is for exceptional site installations Use of this feature is ONLY done with Cameron input 2 1 4 Grounding Earthing Meter Body and Transmitter The meter body and transmitter have grounding earthing points available There are grounding points on the inside of the junction box at the meter body and on the outside of the junction box and the manifold There are grounding points on the inside and outside of the transmitter enclosure For ATEX applications both grounding points must be used Follow all other site guidelines regarding grounding earthing See Figure 1 1 and Figure 1 2 for earthing points on the meter body Installation Page 18 November 2008 LEFM 220 User Manual IB0204 Rev 17 WARNING DO NOT OPEN WHEN ENERGIZED 2 22 Flow Meter Body BEFORE INSPECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKE
38. e treated as simultaneous and solved for the two unknowns C and Solving for V and taking into account path angle 0 Lp D 20000 Using this method the velocity measurement V is independent of the velocity of sound and consequently is unaffected by variations flow temperature density chemical composition etc 3 2 Measuring Flowrate LEFM Ultrasonic Flow Meters are capable of measuring velocities along a multiple of acoustical paths arranged across the flow pattern in the pipe The accuracy and repeatability of the flow measurement increases with the numbers of acoustic paths single plane system has all the acoustical paths laid out in a single acoustical plane as shown in Figure 3 2 The plane is oriented at an angle 0 path angle with respect to the centerline of the pipe FLOW PIPE CENTERLINE P1 J N 74 P2 SINGLE PLANE SYSTEM TOP VIEW TWO PATH SYSTEM Figure 3 2 Acoustical Path Configurations During manufacturing precision measurements of inside diameter path lengths and path angles are taken and are inserted into the equation for volume flowrate For maximum accuracy the LEFM 220C automatically compensates for pipe thermal expansion and contraction Likewise net flow is available when fluid temperature and pressure are continuously monitored and correction factors maybe applied to the flowrate equation that takes into account the changes in fluid expan
39. en eee rien eoe hee phe RE ne 20 METER INSTALLATION CHECK OUT bee ete PLE Er tal te en 30 OPERATION 31 MEASURING VEEOCTLIES eter aa ee E te ee bee ett ete 31 MEASURING EEOWNRAL E Hle ee ot eae E e utet 32 LEFM 220C TRANSMITTER irent rtp e V V V a 33 EEEM220C FAULT DETECTION ceesti eee 33 GROSS NET FLOWRATE CONVERSION 34 Table of Contents 1 0204 17 3 6 REMOTE DATA COMMUNICATIONS inner 40 MAINTENANCE 4 1 4 2 GENERAL INSPECTIONS PREVENTATIVE MAINTENANCE PROCEDURES 4 3 POWER SUPPLY VOLTAGE TROUBLESHOOTING AND MAINTENANCE 4 4 METERING SECTION AND TRANSDUCER CABLES 4 5 TRANSDUCER INSTALLATION PROCEDURE eterne rennen 4 6 ANALOG INPUT ALIGNMENT AND VERIFICATION PROCEDURE 4 7 ANALOG OUTPUT VERIFICATION siennes 4 7 1 i err erre tere emp e ee ben 4 7 2 PULSE VERIFICATION TESTS irt rette ire etre eerte dee nine 5 0 TROUBLESHOOTING AND DIAGNOSTICS FOR THE ULTRASONICS 5 1 DLPAGNOSHPEICS Z E pose 5 2 PATH TROUBLESHOOTING n e o exte ena 5 2 1 PATH REJECT STATUS
40. ev 17 220C User Manual Socket Heat Cap Screws N 4 x Manifold Transducer Assembly 1 UP Cover with Caldon Label Meter Body RTD Transducer Assembly 2 UP Manifold Base 72 Pipe Nipple Meter body Wedge with 1UP Stamped on this side Ya x 34 Bushing 1 Meter body 1DN 1 2 x 3 2 Bushing Manifold Base amp Cover with Caldon Label Figure 4 4 Meter Body Assembly Construction Outline Maintenance Page 44 November 2008 LEFM 220 User Manual IB0204 Rev 17 gt gt N Figure 4 5 Meter Body Assembly Construction Outline Cryogenic Temperatures NOTE Cryogenic Applications Only Do not remove Stainless Steel Wool from Conduits This wool is required for hazardous area approvals November 2008 Page 45 Maintenance 180204 Rev 17 LEFM 220C User Manual Transducer Compression Spring N Compression Transducer Housing is welded into the Meter body Metering Section Figure 4 6 Transducer Assembly Construction Outline ASSEMBLY PROCEDURES Thread the wires of the transducer though the compression spring and the spacer as shown 2 Apply silicone lubricant to the transducer face before inserting into the transducer housing 3 Insert the transducer and components into the housing until the parts bottom out 4 Route the wires though t
41. h accuracy data should be taken from the pulse output or the ModBus serial link 7 1 Installation The display should be installed on shielded conduit that meets site environment specifications near either the meter body or the transmitter Using 2 conductor instrument wires connect per Table 7 1 Type Transmitter Term Display Term Type 4 0 20 mA high TB3 1 2 Input Shield TB3 2 4 0 20 mA low TB3 3 1 Input Table 7 1 Display Connections The range of the output is scaled using the LEFMLink PC Software or the ModBus interface See the respective manual for instructions 72 Programming the Display See the flow chart in Figure 7 1 Press the M key to enter the programming menu If the panel lock is on you must enter the 4 digit lock code to gain access to the menu Press the 1 key to increment each individual digit of the code Press the key to advance to the next digit Press the E key to enter the displayed code If the code is correct display advances to clr tot if not display returns to run mode Press the E key to clear the totalizer and return to the Run Mode e Press the M key to skip and go to next menu item e Press the f key to step to the desired number of digits for the rate display e Press the E key to enter the displayed choice e Press the M key to skip and keep the existing choice e Press the key to step the decimal to the next digit e Press the E key to enter t
42. he compression screw and then apply lubricant to the threads Screw into the transducer housing and tighten This will load the compression spring Maintenance Page 46 November 2008 LEFM 220 User Manual IB0204 Rev 17 m welded into the Meter body Compression i Screw Spring Transducer Housing is Metering Section Figure 4 7 Cryogenic Transducer Assembly Construction Outline ASSEMBLY PROCEDURES 1 Thread the wires of the transducer though the compression screw spring and the spacer as shown 2 Apply foil coupling to the transducer face before inserting into the transducer housing 3 Insert the transducer and components into the housing until the parts bottom out Be sure to align with the pin as shown 4 Screw into the transducer housing and tighten This will load the compression spring November 2008 Page 47 Maintenance 1 0204 Rev 17 LEFM 220 User Manual WARNING DO NOT OPEN WHEN ENERGIZED BEFORE INSPECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKER TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD Transducer Cable Inspection Checks Inspect transducer cables as follows Verify each transducer cable for physical damage Check connectors on cables at each end to verify each is undamaged Clean connector with electronic contact cleaner if fouled or corroded Replace any damaged cable or connector Reinstall transducer housing covers after completing all inspections
43. he displayed decimal location Press the M key to skip and keep the existing decimal location e Press the key to step the decimal to the next digit e Press the E key to enter the displayed decimal location e Press the M key to skip and keep the existing decimal location November 2008 Page 63 Appendix A 1 0204 Rev 17 LEFM 220 User Manual Press the 1 key to step to the desired totalizer descriptor Press the E key to enter the displayed descriptor Press the M key to skip and keep the existing descriptor Press 1 key to step to the desired rate descriptor Press the E key to enter the displayed descriptor Press the M key to skip and keep the existing descriptor Choose the descriptor which reflects the time base used for rate high Press the 1 key to step to the desired input type Press the E key to enter the displayed choice Press the M key to skip and keep the existing input type Press the 1 key to increment each individual digit of the rate low setting Press the key to advance to the next digit Press the E key to enter the displayed value Press the M key to skip and keep the existing value Press the 1 key to increment each individual digit of the rate high setting Press the key to advance to the next digit Press the E key to enter the displayed value Press the M key to skip and keep the existing value Press thet key to increment each individual digit of the low cutoff setting Pres
44. hieve high accuracy and repeatability It also contains an automatic self checking system to continuously verify that it is performing properly and to initiate warnings and alarms when unsatisfactory conditions are detected For ease of troubleshooting it provides via ModBus easy to interpret diagnostic information It is recommended that before performing system verification and repair procedures personnel receive general training from Cameron Contact Cameron s Measurement Systems division for information on training programs A complete range of support services are offered For additional information or assistance on the application operation or servicing of the LEFM 220C write or call or visit www c a m com flo CAUTION NO OPERATOR ACCESS IS PERMITTED IN THE UNIT SERVICE SHOULD ONLY BE PERFORMED BY QUALIFIED PERSONNEL IF THE EQUIPMENT IS USED IN A MANNER NOT SPECIFIED BY THE MANUFACTURER THE PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED November 2008 Page 1 Introduction 1 0204 Rev 17 LEFM 220 User Manual Introduction Page 2 November 2008 LEFM 220C User Manual IB0204 Rev 17 1 0 EQUIPMENT SPECIFICATION 11 LEFM 220C Equipment LEFM 220C Flow Measurement Systems consist of two types of equipment 1 LEFM 220 Transmitter 2 LEFM 220C Meter body or Metering Section including transducers cables for transducers temperature transmitters and pressure transmitters optional 1 1 1 LEFM Transmitter
45. io for each path paths 1 and 2 The SNR should be greater than 40 or greater than 20 for high viscosities 2 Review the gains for each acoustic path both upstream and downstream The gains should be between 40dB and 80dB Upstream and downstream gain should nominally be within 3 dB of each other 3 Review the percent rejected data for each path The percent should be between 0 and 5 4 Review the gains for each pulse echo path both upstream and downstream The path with the higher gain should be investigated first Note There will be situations where the pulse echo paths are both at their maximum 88dB If this is the case investigate the cables and the transducers of both transducers Remember the following troubleshooting tips f all paths are in fail not just one then either the meter has no liquid or an electronics hardware failure has occurred fa path has 100 rejects it means APU cannot lock onto a signal It is possibly a cable or transducer problem Note When rejects equal 100 then the APU will always indicate SNR 0 for the path Troubleshooting Page 56 November 2008 LEFM 220C User Manual IB0204 Rev 17 If an acoustic signal does not exist or if SNR has degraded from installation then follow checklist below e Verify the pipe is full of liquid Check the transducer impedance If the transducer impedance is less than 10 Megohms then replace transducer AN NOTE DO NOT USE
46. ld be installed before and near the transmitter The external disconnect device must be an approved device rated for the supply voltages and is rated to 3 Amps or 15 Amps for the 24 Volts DC and provide a minimum of 3 0 mm spacing Explosion Proof enclosures must be installed with rigid conduit with stopping boxes seal fittings installed within 3 inches 75 mm of the enclosure Figure 8 1 Figure 8 2 Figure 8 3 and Figure 8 4 illustrate the conduit connections for the LEFM 220C Transmitter and the transmitter layout 8 1 1 1 Infrared Interface The IR interface is an infrared wire extension interface It will not work with the built in IR port on most laptops A serial to IR adapter is available to make this connection on the laptop The IR port in most Palm Pilot handheld devices and pocket PCs is supported though 8 1 1 2 RS 232 to RS 485 Converter An optional RS 232 to RS 485 converter is available Figure 8 6 shows the setup and configuration of the RS 485 module Figure 8 7 shows the location of the module in the transmitter The module should be wired into the transmitter per Table 8 7 8 1 2 Grounding Earthing The meter body and transmitter have grounding earthing points available Site guidelines are to be followed regarding grounding earthing See Figure 1 1and Error Reference source not found for earthing points on the meter body 8 1 3 Meter Body Terminations The meter body terminations are defined in Table 8 1 and Ta
47. limit the temperature limits for the assembled meter See the meter nameplate for the temperature limit of the system as assembled 1 3 4 Environment Transmitter and Meter body Storage Temperature Transducer Cable 40 F 40 C to 140 F 60 C Transmitter 40 F 40 C to 158 F 70 C Meter body 220C all models 40 F 40 C to 176 F 80 C 220C LT Cryogenic 40 F 40 C to 176 F 80 C Note For storage temperature the meter body limits have been set by the limiting ambient rating of any seal gland or J box that could be used with the flow meter The operating temperatures are defined in the previous section Operating Temperatures See Approvals Section Operating Pressures Meter body Max working is listed on meter nameplate surge pressures in excess of flange max working pressure rating must be evaluated November 2008 Page 9 Equipment Specification 1 0204 Rev 17 LEFM 220 User Manual 1 3 5 LEFM 220C and 220C LT with J Boxes Meter Body Specifications TRANSDUCER EXTRACTION G MINIMUM STOPPING BOX SEAL FITTING INSTALLED WITHIN 18 450 MM INTERNAL GROUND EARTH TERMINAL EXTERNAL GROUND EARTH TERMINAL Figure 1 1 Construction Outline Drawing Dual Junction Boxes Equipment Specifications Page 10 November 2008 LEFM 220C User Manual IB0204 Rev 17 Figure 1 1 Addendum
48. mitter The transmitter should be mounted at a convenient working height The recommended height is the bottom of the transmitter at about 4 feet 1 2 meters from the floor While an installation in direct sun is acceptable an installation in the shade will increase the life of all components November 2008 Page 17 Installation 1 0204 Rev 17 LEFM 220 User Manual 2 1 2 Field Terminations The following installation instructions are for current revision of boards This revision has blue circuit boards For older units with green circuit boards refer to Appendix B of this manual for wiring The wiring should be routed to the transmitter in shielded conduit that meets site environment specifications terminations should be made according to Table 2 1 through Table 2 5 For full environmental temperature range all wiring conductors should be rated for a minimum of 194 F 90 supply wiring must be rated to 300 volts AC 18 AWG Equipment must be installed by a licensed electrician in accordance with NEC CEC or local codes As a minimum a disconnect switch should be installed before and near the transmitter power input The external disconnect device must be an approved device rated for the supply voltages and is rated to 3 Amps or 15 Amps for the 24 Volts DC and provide a minimum of 3 0 mm spacing Explosion Proof enclosures must be installed with rigid conduit with stopping boxes seal fittings installed within 3 in
49. mitters The connections in Table 2 1 are only for reference when using cables with connectors WARNING DO NOT OPEN WHEN ENERGIZED 21 Transmitter BEFORE INSPECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKER TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD The LEFM 220C meter is designed to be used under a wide variety of process and environmental conditions Durable construction permits conventional installation practices The transmitter should be installed in an environment consistent with the ratings of the enclosure 1 NEMA or Explosion Proof wiring to and from the transmitter must be put in grounded metal conduit or equivalent Mounting must use the mounting points indicated in Figure 2 1 and Figure 2 3 No ventilation is required other than that is necessary to meet the ambient temperature requirements 2 1 1 Transmitter Mounting For installation simply uncrate the delivered transmitter please note the weight of your transmitter in Section 1 0 for proper handling Use the indicated mounting points for mounting the units Select bolts hardware appropriate for the unit s weight Consider site seismic requirements Use inch bolts hardware or equal on all mounting points for the Explosion Proof NEMA 7 transmitter Cover bolts are metric M12 x 1 75 x 50 mm Use 19 mm Socket Wrench Use inch bolts hardware or equal on at least the 2 top and 2 bottom mounting points for the NEMA 4X trans
50. n current and 0 01 on pulse frequency Return meter to normal operation Step 6 If pipe is full of liquid verify acoustic signals have Rejects 2 and SNR signal to noise ratio gt 40 or 220 for higher viscosities Verify standard deviation is less than 446 at flowing conditions See Section 5 0 Installation Page 30 November 2008 LEFM 220 User Manual IB0204 Rev 17 3 0 OPERATION 31 Measuring Velocities LEFPM Ultrasonic Flow Meters use pairs of ultrasonic transducers to send acoustic pulses to one another along a measurement path The measurement path is at an angle to the fluid flow The acoustic pulse s transit time depends upon both the velocity of sound VOS in the fluid and the velocity of the fluid along the path The transit time will be shorter for pulses which travel downstream with the flow than for the pulses which travel upstream against the flow T le C V i le V where T downstream transit time T upstream transit time path length velocity of sound fluid V flow velocity along the ultrasonic path V flow velocity along pipe axis 0 angle between path and pipe centerline Downstream Transducer Upstream Transducer Figure 3 1 Flow Velocities Along the Ultrasonic Path and the Pipe Axis November 2008 Page 31 Operation 1 0204 Rev 17 LEFM 220 User Manual When pulses travel upstream and downstream during the same time the above equations may b
51. n to reference schematics system connection diagrams and construction outlines in Section 0 42 General Inspections Preventative Maintenance Procedures WARNING DO NOT OPEN WHEN ENERGIZED BEFORE INSPECTING COMPONENTS OPEN THE LEFM 220C CIRCUIT BREAKER TO AVOID ELECTRICAL SHOCK AND OR EXPLOSION HAZARD WARNING CAUTION WEAR AN ESD PROTECTIVE WRIST STRAP TO AVOID DAMAGING ANY COMPONENTS This procedure covers the inspection of the electronics unit transducers metering sections and cables November 2008 Page 37 Maintenance 1 0204 Rev 17 LEFM 220 User Manual Enclosure Inspection Perform the following inspections on each enclosure a Verify electronic unit enclosure has suffered no structural damage Report any damage to proper maintenance supervisor b Remove dust dirt and other soiling from enclosure If necessary remove power to the LEFM 220 by opening circuit breaker 1 c Inspect access cover gaskets Clean gaskets and mating surfaces on enclosure with water if they are dirty remove any corrosion from mating surfaces Verify gaskets compress when cover is installed and fastened to enclosure d Inspect door latch mechanism e Lubricate door hinges with lubricant specified on enclosure f Inspect enclosure mounting and fastening hardware Internal Electronics Inspection If necessary remove power to the LEFM 220 by opening circuit breaker CB1 b Put on an ESD Electrostatic Discha
52. nction Box Wire Name Device Terminal Device Terminal 1 1 1 UP Shield TBI 2 Upstream JBOX TB1 E 3 2 1 4 13 1 DN Shield 181 5 Downstream JBOX TB1 6 14 1 7 3 2 UP Shield 181 8 Upstream JBOX TB1 1 9 4 1 10 15 2 DN Shield 11 Downstream JBOX TB1 2 1 12 16 RTD TB2 1 9 RTD TB2 2 10 RTD Shield TB2 3 Upstream JBOX TB1 RTD TB2 4 11 RTD TB2 5 12 Table 8 1 LEFM 220C Transducer and RTD Terminations 2 junction boxes Transducer Cable Identification Transmitter Termination Meter Body Junction Box Wire Name Device Terminal Device Terminal 1 JBOX TBI 1 UP Shield XMT BPL TBI 2 XMT BPL TB1 3 JBOX TBI 2 4 3 1 DN Shield XMT BPL TB1 5 XMT BPL TB1 6 JBOX TBI 4 XMT BPL TB1 7 1 5 20 Shield XMT BPL TBI 8 T XMT BPL TBI 9 JBOX TBI 6 10 JBOX TBI J 2 DN Shield XMT BPL TB1 11 XMT BPL TBI 12 JBOX TBI 8 RTD TB2 1 9 RTD TB2 2 10 RTD Shield TB2 3 JBOX TBI RTD TB2 4 11 RTD TB2 5 12 Table 8 2 LEFM 220 Transducer RTD Terminations 1 junction box Appendix B Page 72 November 2008 LEFM 220 User Manual Analog Input Source Meter Temperature See Tables 2 1 2 2 amp 2 3 Pressure Fluid Temperature Density IB0204 Rev 17
53. normal operation 40dB 80dB SNR Range 0 100 The LEFM 220C performs the following automatic fault detection The APU checks data quality of the ultrasonic signals and evaluates data against pre set thresholds The data is evaluated based on SNR signal to noise ratio cross correlation tests and signal statistics Occasionally data will be rejected however this will not influence the operation If an ultrasonic path continues to reject data the meter will alert the operator with an ALARM status and an error code The APU will output the current status through a digital output and MODBUS The meter status includes NORMAL status status bit on Terminal Block TB5 5 is at 5 volts ALARM status 1 path failed flow computed with a lower accuracy status bit on TB5 5 is at 0 volts e ALARM status all paths failed flow is set to zero 0 status bit same as normal status The individual path status codes are e 0 Path operating normally Path rejecting data due to low SNR irregular statistics or failing the correlation test e 6 Path sound velocities are inconsistent with thresholds typically up to 1 spread between paths is acceptable 8 Path velocity inconsistent at low flows e 10 Path fails impedance self test 11 Electronics fails clock accuracy test NOTE Caldon interface software interprets these codes and displays a text message Troubleshooting Page 54 Novem
54. osion Proof Enclosure Units in Inches mm Page 20 November 2008 LEFM 220 User Manual IB0204 Rev 17 Circuit Breakers amp Fuses for 24 Volt DC Versions Power Terminals N zi LM omm Der em gt I 1 Backplane Pulse Output Terminations Transducer Analog Input Serial Analog Output BPL TB5 Terminations Terminations Communications Terminations BPL TBI BPL TB2 BPL TB3 BPL TB4 Figure 2 2 Explosion Proof Enclosure with Cover Open November 2008 Page 21 Installation 1 0204 Rev 17 LEFM 220 User Manual 8 92 226 49 800120 20 11 2 67 i 1 75 44 45 SERIAL NO NAMEPLATE PATENT NAMEPLATE 1 Ut FACEPLATE SEE ASSEMB PROCEDURE NOTE 6 3 4 CONDUIT ENTRANCE W PLUGS TWO PLACES CONDUIT ENTRANCE PLUGS FOUR PLACES Figure 2 3 NEMA 4X Enclosure Units in Inches mm Installation Page 22 November 2008 LEFM 220 User Manual IB0204 Rev 17 Circuit Breakers amp Fuses for 24 Volt DC Versions Power Terminations 2 Diagnostic Serial Ports CII III I HI I I I I as oupa CI _
55. otocol Cameron provides PC laptop software LEFMLink or PDA software to interface with the 220C via MODBUS Alternatively the Caldon MODBUS manual can be used to select the appropriate registers Note Throughout the remainder of this manual values such as path SNR Signal to Noise Ratio gain etc are discussed as if the reader is using the Cameron provided LEFMLink software MODBUS register addresses will not be mentioned For detailed information on using LEFMLink see the LEFMLink User s Manual The following figure is an example of the Caldon interface software In this figure the following items are highlighted Head W Signal Diagnostics l XI C 0CL Info Updates 70 Samples Info 403 Fw Custody Transfer 17 Path 1 Path 2 Path 3 Path 4 TDown 211136 u DeltaT 1 04 ns Status Normal Normal Gain Up Dn 48 3 485 485 48 6 dB SNR 98 98 83 Path 5 Path StdDev 0 4 11 Info Test Echo TD 255955 n 7471 ns DeltaT 173 9 8 2 ns Gain Up Dn 57 4 515 62 4 B1 2 dB Setup ID I91 73 Echo Path gains Figure 5 1 PC Diagnostic Software November 2008 Page 53 Troubleshooting 1 0204 Rev 17 LEFM 220 User Manual For the ultrasonic signals the most frequently used diagnostic information will be the following Rejects Range 0 100 normal operation 0 5 Gain up down Range 0 88dB
56. pecifications LEFM 220C Transmitter Material Explosion Proof 4 Weight Net Weight Power Requirements Voltage Supply Required Current Draw Power Consumption Cable Lengths Standard Extended Range Pulse Outputs Communications Pulse Output Alarm Status Serial Communications Analog Outputs Analog Inputs Equipment Specifications LEFM 220C User Manual Aluminum Stainless Steel NEMA 4X 30 Ibs 13 6 kg Explosion Proof 120 lbs 54 5 kg See following figures for dimensions 24 VDC or 120 VAC 50 60 Hz or 230 VAC 50 60 Hz 24 VDC 3 0 Amps 120 VAC 0 8 Amps 230 VAC 0 6 Amps 20W 80W with heaters active 15 feet approximately 5 meters lengths up to 200 61 meters can be ordered Special cables can be used for runs up to 1000 300 meters Contact the Cameron s Measurement Systems division Engineering department to discuss the needs of the application 0 5 Volts 5 Volts Normal 0 Volts Alarm RS 232 typical RS 422 or RS 485 options available ModBus Protocol see Caldon ModBus Specifications 4 20mA or 0 20mA max load 650 Ohms up to 4 total 4 20mA 0 20mA RTD or Frequency up to 3 total Meter Body Temperature RTD is standard Page 6 November 2008 LEFM 220 User Manual IB0204 Rev 17 1 3 2 Approvals Transmitter LEFM 220C T EX Hazardous Area Approvals USA and Canada Class I Div I Groups C and D Conforms to UL Std 1203 S
57. r code The APU outputs the current status on the serial port and the digital output The status may be one of the following NORMAL status ALARM status 1 path failed flow computed with a lower accuracy ALARM status all paths failed flow is set to zero 0 November 2008 Page 33 Operation 1 0204 Rev 17 LEFM 220 User Manual Path status each ultrasonic path the codes Reference Caldon ModBus Specifications are 0 Path operating normally 1 Path rejecting data due to low SNR irregular statistics or failing cross correlation tests 6 Path sound velocities are inconsistent with thresholds typically up to 2 spread between paths is acceptable 8 Path velocity inconsistent at low flows 10 Path fails impedance self test 11 Electronics fails clock accuracy test 3 5 Gross to Net Flowrate Conversion Net volumetric flowrate is calculated by correcting gross volumetric flowrate to standard product conditions of 60 F and 0 psig Net Flowrate Gross Flowrate Knet temp Knet pres The LEFM 220C computes a temperature correction factor and pressure correction factor typically based on the following references API Chapter 11 1 Volume I August 1984 API Standard 2540 Table 6A Generalized Crude Oils and JP 4 Correction of Volume to 60 Against API Gravity at 60 API Chapter 11 2 1 Manual of Measurement Standards March 1990 Compressibility Factors for Hydrocar
58. rge protective wrist strap Connect ESD protective wrist strap to a known ground any part of enclosure structure is an acceptable ground c Inspect cable entry points to assure that cable insulation is undamaged Inspect cables that cross hinges to assure that cable insulation is undamaged d Inspect cable connections for tightness Clean connections if fouled or corroded with electronic contact cleaning fluid e Inspect all internal connections and terminals for tightness clean connectors and terminals if fouled or corroded with electronic contact cleaning fluid f Inspect fuses to assure that they are not damaged or discolored Replace any damaged or blown fuses 6 Inspect display panel components if equipped and devices for damage Replace any damaged components Check all connectors to see that each is properly seated Check that all devices are securely mounted h Inspect acoustical processing unit APU components and devices for damage Check that the printed circuit boards are properly seated Check that devices are securely mounted Clean dust and grime from the surface of all components using compressed air or a PC parts cleaner 1 Caution There heaters located behind backplane surface may be hot j Clean dust and grime from all surfaces of the enclosure interior walls using compressed air or a PC parts cleaner Maintenance Page 38 November 2008 LEFM 220 User Manual IB0204 Rev 17 43 Power Supply
59. s the key to advance to the next digit Press the E key to enter the displayed value Press the M key to skip and keep the existing value Press the 1 key to step to the desired divider for the pulse output Press the E key to enter the displayed divider Press the M key to skip and keep the existing divider Press the 1 key to step to cal YES or cal NO Press the E key to enter the displayed choice Press the M key to skip and proceed to lock code Press the E key when 4mA is supplied to the input Press the M key to skip and proceed to cal hi Done will appear to signal that the cal lo was successful Press the M key to advance to cal hi Press the E key when 20mA is supplied to the input Press the M key to skip and proceed to loc code Appendix A Page 64 November 2008 LEFM 220C User Manual e Done will appear to signal that the cal hi was successful e Press the M key to advance to loc code e Press the key to increment each individual digit of the lock code e Press the key to advance to the next digit e Press the E key to enter the displayed code e Press the M key to skip and keep the existing code e Press the f key to step to the desired lock setting e Press the E key to enter the displayed lock setting e Press the M key to skip and keep the existing setting Setup Instructions provided are from the display manufacturer KEP document 99327 November 2008 Page 65 1B0204 Rev 17 Appendix A 1
60. ser Manual IB0204 Rev 17 PORT RS 232 RS 422 485 Full Duplex RS 485 Half Duplex NAME Termination BPL S3 54 RS BPL S3 54 RS 485 BPL S3 S4 RS 485 232 E6 E7 jumpered 2 3 E6 E7 jumpered 1 2 BPL TB3 11 Transmit Tx A Noninverting Receive Rc BPL TB3 12 Ground GND B Inverting Receive Rc COM3 BPL TB3 13 Receive Rc Z Inverting Transmit Tx 7 BPL TB3 14 5 Volts Y Noninverting Transmit Noninverting Transmit Receive Data BPL TB3 15 Ground BPL TB3 16 Transmit Tx Noninverting Receive Rc BPL TB3 17 Ground GND B Inverting Receive Rc COM4 BPL TB3 18 Receive Rc Z Inverting Transmit Tx 7 _ BPL TB3 19 5 Volts Y Noninverting Transmit Na Noninverting Transmit Receive Data BPL TB3 20 Ground Table 2 6 RS 232 422 485 Serial Communications RS 232 selected when 53 COM3 and 54 on the transmitter backplane are positioned toward RS 232 RS 422 485 are selected when 53 COM3 and 54 on the transmitter backplane are positioned toward RS 485 Jumpering E6 COM3 and E7 on the transmitter backplane to positions 1 2 selects half duplex mode RS 485 Jumpering E6 COM3 and 7 on the transmitter backplane to positions 2 3 selects full duplex mode RS 422 485 November 2008 Page 27 Installation 1 0204 Rev 17 LEFM 220 User Manual Figure 2 5
61. sing the site interface however it is not recommended to do the reprogramming this way Given that there are many registers to load the process will be tedious and prone to errors November 2008 Page 57 Troubleshooting 1 0204 Rev 17 LEFM 220 User Manual 5 3 1 ModBus ID and Baud Rate All Caldon transmitters are programmed with ModBus ID set to 1 Baud Rate at 9600 and in RTU Slave Mode If the transmitter has been reprogrammed with a different setting and this setting is not known simply set DIP Switch Number 2 to up TRUE and toggle the reset switch Resetting the transmitter in this mode forces the transmitter to operate with its default settings In this mode the transmitter will wait for a new setup before restarting NOTES 1 MAKE SURE YOU HAVE THE CORRECT SETUP FILE FIRST 2 MAKE SURE YOU PUSH DOWN DIP SWITCH NUMBER 2 WHEN FINISHED Troubleshooting Page 58 November 2008 LEFM 220C User Manual Reset 5V LED 12V LED 12V LED 150V LED TRANSMIT LED 5 MHz Clock 14 Receive Signal 4 Trigger TP3 Ground COSE oO OS 1 0204 Rev 17 BM L 9M2 Control Selector N Switches Ws Mie switches shown down y Figure 5 2 Edge of APU Board Side View November 2008 Page 59 Troubleshooting 1 0204 Rev 17 LEFM 220 User Manual Troubleshooting Page 60 November 2008 LEFM 220 User Manual IB0204 Rev 17 6 0 RECOMMENDED SPAR
62. sion due to pressure and temperature See Section 3 6 Operation Page 32 November 2008 LEFM 220C User Manual IB0204 Rev 17 33 LEFM 220C Transmitter The LEFM 220C transmitter contains three major functional units the Acoustic Processing Unit APU the Backplane and the power supply The Acoustic Processing Unit is a specialized board proprietary to Cameron It is designed to achieve high sampling rates stable ultrasonic signals and no zero drift The APU board performs all control and timing for the generation and measurement of acoustic pulses The APU board has a microprocessor programmed to perform the following functions Step through the ultrasonic path cycles and test cycles Provide Gain Control for each ultrasonic path Compute flow Compute gross to net conversions Generate pulse analog outputs Setups to the APU are provided by serial link through the backplane 34 LEFM 220C Fault Detection The LEFM 220C performs the following automatic fault detection Checks data quality for ultrasonic paths Evaluates data against thresholds The data is evaluated based on SNR signal to noise ratio cross correlation tests and signal statistics For each ultrasonic path the APU determines if the path has failed Occasional rejected or bad data does not influence the operation However if an ultrasonic path continues to fail the meter will alert the operators with the ALARM status and an erro
63. t Pressure Location M2 gt Fluid Temperature Location M3 47 Analog Output Verification When provided the LEFM 220C may have up to four Analog Output Channels Each analog channel has a 0 20 mA Part MB39 03 or 4 20 mA part MB39 01 range depending on the isolation module requested The pulse output has a range of 0 5V There are no adjustments to be performed for the analog or pulse outputs Analog outputs M5 8 can be mapped to any ModBus input register for maximum flexibility By default the analog outputs are mapped as follows M5 Flow M6 Velocity of Sound M7 Temperature 8 Density M9 Pulse Output 4 7 1 Analog Scaling The analog outputs are scaled linearly anywhere between their maximum and minimum values Use the force outputs function of LEFMLink to test the scaling of the analog outputs with input site devices See the LEFMLink Manual 4 7 2 Pulse Verification Tests Similar to calibrating the Analog Outputs a fixed frequency may be forced out of the transmitter pulse output The ModBus Register for Frequency Output Reference ModBus Manual may be set to any frequency Writing a value to this register and commanding the transmitter to use it will force the pulse output to a fixed frequency Returning the Frequency Output Register to 0 or normal will return the transmitter to normal operation Maintenance Page 50 November 2008 IB0204 Rev 17 E D e 9
64. td UL 61010 1 CSA Std 22 2 No 30 CSA Std 22 2 No 61010 1 Hazardous Area Approvals ATEX CC 0891 EEx d T6 TA 50 C to 60 C TRL04ATEX11056X 1 3 3 Approvals Meter Body 220 220C LT M USA and Canada 220C M Manifold Part Number 202B264HXX Class I Div I Groups B C and D Conforms to CAN CSA C22 2 No 0 M91 CSA Std C22 2 No 30 M1986 CAN CSA C22 2 No 94 91 CSA Std C22 2 No 142 M1987 UL Std No 50 ANSI UL Std No 508 UL Std No 1203 Temperature Range 40 deg C to 140 deg C CI T Div 1 GP B C D 4X u UE November 2008 Page 7 Equipment Specification 1 0204 17 LEFM 220 User Manual ATEX 220C M Manifold Part Number 202B264 W HXX C Cv 0891 EExd IIB T5 TA See Note Below TRL04ATEX11068X Explanation of Part Number Code and Temperature Range only Defines the different glands seals that may be used with the device Where W is set to D the temperature range is TA 50 C to 93 C W is set to E the temperature range is TA 50 C to 80 C W is set to F the temperature range is TA 50 C to 93 C H XX Defines the different sizes XX can be any value from 01 to 16 ATEX 220C LT M Wide Range Temperature Manifold Part Number 202858582 WYZ H CC EEx d IIB T3 See Note Below TRLO4ATEX11068X Explanation of Part Number Code
65. that the LEFM 220C meter body be installed downstream of at least 20 diameters of straight pipe of the same nominal diameter as the meter or 10 diameters downstream of a straightening conditioning element Downstream there should be at least 3 diameters of straight pipe of the same nominal diameter as the meter These conditions minimize the possibility of significant flow profile distortions and swirl 2 2 3 Flow Direction The LEFM 220C Meter is a bidirectional meter with a quadrature pulse output available to indicate direction of flow Reference Table 2 4 Pulse output A leading pulse output B by 90 indicates forward flow while pulse output B leading pulse output A by 90 indicates reverse flow with respect to the flow arrow of the nameplate To ensure that the flow indication is displayed correctly the fluid should flow in the same direction as the arrow on the meter body nameplate November 2008 Page 19 Installation 1 0204 17 2 2 4 Air in the Flow Stream The LEFM 220C Flow Meter should be installed such that minimal entrained gas will reach it 2 or less as a rule of thumb Although ultrasonic meters can provide accurate measurement when there is a small volume of entrained gas in the flow stream better performance can be achieved by eliminating it LEFM 220C User Manual Certain operations can introduce air into the flow stream Various types of leaks in a liquid handling system can draw air into the flow stream
66. utput Wiring Description Terminus DB9 TX Transmit TB4 1 GND GND Shield TB4 2 RX Receive TB4 3 VII 5V 5V DC TB4 4 Table 8 6 RS 232 Output Power Connectivity Description terminus 120 VAC LINE Neutral Ground Earth 24 VDC 24 VDC 24 VDC Return Ground Earth 230 VAC LINE 1 LINE 2 Ground Earth Table 8 7 Power Connections D rN 6 rN Re Only one type of power should be connected Page 74 November 2008 LEFM 220 User Manual IB0204 Rev 17 Fuse Size Type Function LI 3 15 Amp time delay Electronics F2 5 0 Amp fast acting Heaters for cold ambient applications 2 Figure 8 5 24 Volt DC Fuses November 2008 Page 75 Appendix B 1 0204 Rev 17 LEFM 220 User Manual TYPICAL RS 4221485 4 WIRE 5 4 5 9 IFERMINAL BLOCK G FOR 2 4 Wire 2 2 Wire p Enable Enable H ih lf duplex TERMIBAL BLOCK K TER alexi GND RS 422 Mode OFF OFF OFF BLOCK M Senerater daplexi 485040 R Receive 1 mm Circuit giound Table 2 Baud Rate Selection Ds Swltch amp suiteh Switeh amp TYPICAL TWO WIRE RS 435 SETUP 1200 Orr
67. w 4 3 4 0 20 mA high TB4 4 Sound Velocity Shield TB4 5 M6 4 0 20 mA low TB4 6 4 0 20 mA high TB4 7 Temperature Shield TB4 8 M7 4 0 20 mA low 4 9 4 0 20 mA high 4 10 Specific Gravity Shield TB4 11 8 4 0 20 mA low TB4 12 Table 2 3 Analog Output Customer Connection Locations Located on Backplane Note Other variables can be mapped to the analog outputs Contact Cameron s Measurement Systems division for specifics November 2008 Page 25 Installation 1 0204 Rev 17 LEFM 220 User Manual Pulse Output Signal Description Terminus 5 V A leads B by 90 degrees to indicates forward flow 1 55 2 5 2 5 V B leads A by 90 degrees to indicate reverse flow TB5 3 Direction 5V Forward Flow Reverse Flow TB5 4 0 V indicates alarm condition meter Status 5 V indicates normal operation TB5 5 Ground Ground TB5 7 GSS GSS Input Signal TB5 9 GSS RTN GSS Return TB5 10 Table 2 4 Pulse and Digital Output Wiring Power Connectivity Description terminus LINE 120 VAC Neutral Ground Earth 24 VDC 24 VDC 24 VDC Return Ground Earth LINE 1 230 VAC LINE 2 Ground Earth D ID S tS Table 2 5 Power Connections Only one type of power should be connected Installation Page 26 November 2008 LEFM 220C U

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