Cameron LEFM 380Ci-R User Manual
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Cameron LEFM 380Ci-R User Manual

Lefm 3**ci series, gas ultrasonic flowmeters with g3 transmitter
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CALDON ULTRASONICS
LEFM 3xxCi Family of
Gas Ultrasonic Flowmeters with G3
Transmitter
User Manual
Manual No. IB1406 Rev. 12

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  • Page 1 CALDON ULTRASONICS LEFM 3xxCi Family of Gas Ultrasonic Flowmeters with G3 Transmitter User Manual Manual No. IB1406 Rev. 12...

  • Page 2: Lefm 3Xxci User Manual Ib1406 Rev

    LEFM 3xxCi User Manual IB1406 Rev 12 *Mark of Schlumberger. Other company, product, and service names are the properties of their respective owners. Copyright © 2017 Schlumberger Limited. All rights reserved. Manual No. IB1406, Rev. 12 August 2017...

  • Page 3: Table Of Contents

    Remote-Mount Meter and Transmitter Installation (Model 3xxCi-R) ............20 Remote Mount Terminations Procedure (External Junction Box Only) ..........21 Table 3.1 LEFM 380Ci-R Transducer and RTD Terminations (See Figure 3.2) ........23 Remote Mount Transmitter Installation Procedure ................25 ..............................26 Transmitter Connections –...
  • Page 4 LEFM 3xxCi User Manual IB1406 Rev 12 ..............................36 Understanding Flow Calculations ......................36 Measuring Flow Velocities ........................36 Measuring Flow Rate .......................... 37 ..............................38 Operations ............................... 38 Definitions ............................38 Normal Operating Conditions ......................38 Table 6.1 LED Diagnostics ........................38 Display ..............................
  • Page 5 LEFM 3xxCi User Manual IB1406 Rev 12 Transducer Equipment ........................68 Electronic Equipment .......................... 68 Installation Equipment (Optional) ......................68 Table of Contents Page iii August 2017...

  • Page 6: Important Safety Information

    Before performing system verification and repair procedures, contact the Valves & Measurement division, Caldon Ultrasonics. For additional information or assistance on the application, operation or servicing, call the Cameron office nearest you or visit www.cameron.slb.com. Important Safety Information...
  • Page 7 LEFM 3xxCi User Manual IB1406 Rev 12 Important Safety Information Page 2 August 2017...

  • Page 8: Introduction

    Users who require a more detailed view of diagnostic acoustic data can access the data via Cameron’s LEFMLink software. The operation of this software is outside the scope of this manual. See the LEFMLink User Manual for details.
  • Page 9 LEFM 3xxCi User Manual IB1406 Rev 12 Model 34xCi: Transmitter mounted to the meter body (refer to Section 2, Meter Body Installation, for installation). This model has a factory installed seal between the transmitter and the meter body. Model 380Ci: Transmitter mounted to the meter body (refer to Section 2, Direct-Mount Meter and Transmitter Installation, for installation).
  • Page 10 LEFM 3xxCi User Manual IB1406 Rev 12 LEFM 3xxCi Meter Body The meter body contains up to eight pairs of acoustic transducers and a temperature sensor (RTD). The meter body is a specially designed section of pipe that contains pairs of transducer housings that are positioned to provide acoustic paths at a 65°...

  • Page 11: Table 1.1 Nominal K-Factors

    LEFM 3xxCi User Manual IB1406 Rev 12 Table 1.1 Nominal K-Factors Size Maximum Flow K-Factor Maximum Flow K-Factor (P/CF) (P/m 29,000 8900 65,000 1845 3900 114,000 3,230 2230 180,000 5,090 1416 254,000 28.3 7,200 1000 307,000 23.5 8690 402,000 17.9 11,400 511,000 14.1...

  • Page 12: Model Number

    LEFM 3xxCi User Manual IB1406 Rev 12 Model Number Meter Body Model Numbers The model number defines construction and features. From the model number, a user can identify and verify the component type, meter size, piping thickness, construction material, ANSI rating, and enclosure type.

  • Page 13: Flowmeter Specifications

    LEFM 3xxCi User Manual IB1406 Rev 12 Transmitter Model Number The model number for the transmitter includes information that defines construction and features. MODEL NUMBER CODE: G3MFFFCCPSEXYZ MATERIAL M = A, ALUMINUM M = S, STAINLESS STEEL FREQUENCY FFF = 020 FOR 200KHZ FFF = 100 FOR 1 MHZ FFF = 160 FOR 1.6 MHZ FFF = 250 FOR 2.5 MHZ...
  • Page 14 LEFM 3xxCi User Manual IB1406 Rev 12 Note – When attached to a junction box, the total could surpass 135 lbs (61 kg), depending on the junction box material Power Requirements – DC Power Voltage Req’d 24 VDC (18 VDC to 30 VDC) Current Draw 0.25 A at 24 VDC Power Consumption...
  • Page 15 Altitude Up to 5000 meters (16400 feet) for DC applications, 2000 meters for AC applications (Contact Cameron for applications at higher elevations) This transmitter is intended for use in a permanently connected installation, Equipment Class II, Pollution Degree 2, Continuous operation...

  • Page 16: Direct-Mount Meter And Transmitter Installation (Model 3Xxci)

    LEFM 3xxCi User Manual IB1406 Rev 12 Direct-Mount Meter and Transmitter Installation (Model 3xxCi) The LEFM 3xxCi flowmeters are designed for use with a broad range of process and environmental conditions. Durable construction permits conventional installation practices. The flowmeter body is typically fabricated of stainless steel, carbon steel, or duplex steel, depending on customer requirements.

  • Page 17: Ib1406 Rev

    Sealing Washer Figure 2.1 Stainless steel bolt and washer in tapped hole of meter body end flange 5. Use only Cameron swivel hoist rings (ordered separately; see Table 2.1) in the meter body end flanges. DO NOT USE the following: a.

  • Page 18: Table 2.1 Hoist Ring Rated Weights And Part Numbers

    7. Torque the swivel hoist ring attachments to the site recommended limit for that bolt size. DO NOT over-torque. 8. Verify that the rings move freely in all directions. Table 2.1 Hoist Ring Rated Weights and Part Numbers Rated Weight Rated Weight (lbs) (kg) Thread Cameron Part No. 9A-1MMA4 1400 9A-1MMA5 2200 9A-1MMA6 3300 1497 9A-1MMA7...
  • Page 19 LEFM 3xxCi User Manual IB1406 Rev 12 Figure 2.2 The angle (shown here at 30° from vertical and 60° total) may range from 0° to 45° (from vertical) or 0° to 90° (total). The angle must be chosen so that lifting method does not interfere with the electronics unit 4.
  • Page 20 LEFM 3xxCi User Manual IB1406 Rev 12 To avoid damaging the swivel hoist rings, never use cables, hooks, or chains to lift the meter body. Lift the meter gradually. Exposing the swivel hoist rings to shock loads can result in damage to the hoist ring.
  • Page 21 LEFM 3xxCi User Manual IB1406 Rev 12 5D max 2D min Figure 2.4 Best Practice for 380Ci Installation Note: For the 340Ci Installation the Upstream pipe length should be 10D Section 2 Page 16 August 2017...

  • Page 22: Table 2.2 Flow Ranges For The 3Xxci Meter

    LEFM 3xxCi User Manual IB1406 Rev 12 • By following the recommended installation practices detailed below, the LEFM 380Ci has been approved by NMi (certificate number T10504 pipe sizes 6 inches to 42 inches). • The meter meets the performance requirements of OIML R137 Class 0.5 and ISO 17089 Class 1. •...
  • Page 23 LEFM 3xxCi User Manual IB1406 Rev 12 380Ci Upstream Condition Requirements for Calibrated Meters (Pipe Sizes ≥ 6 in.) To meet the requirements of the Measurement Instruments Directive (Directive 2004/22/EC) and OIML R- 137, one of the following installation configurations must be used: Inlet piping configuration No.

  • Page 24: Table 2.3 Uncalibrated Meter Performance

    LEFM 3xxCi User Manual IB1406 Rev 12 Inlet piping configuration No. 1: 10D o Measuring installations using the LEFM 340Ci with 10 diameters or more of straight pipe upstream (without a flow conditioner) and 3 diameters downstream are suitable for accuracy class 0.5 and accuracy class 1.0 in piping arrangements that cause only mild disturbances excluding expanders where the upstream pipe is smaller than the meter diameter.

  • Page 25: Remote-Mount Meter And Transmitter Installation (Model 3Xxci-R)

    100 meters (~300 feet) of the meter body. For distances further than 100 meters, contact Cameron. Note – Conductor insulation for cabling must be rated for a voltage of 300V and a minimum temperature as follows: •...

  • Page 26: Remote Mount Terminations Procedure (External Junction Box Only)

    LEFM 3xxCi User Manual IB1406 Rev 12 Hazardous Area Seal within 2 inch (5 cm) Figure 3.1 Remote Installation of Transmitter from Meter Body (shown with optional sunshield and swivel hoist rings) The installation requires field wiring to connect the meter body terminations to the transmitter. The meter body is installed with junction boxes (J-Box) for the field terminations.
  • Page 27 LEFM 3xxCi User Manual IB1406 Rev 12 Meter Body to Transmitter Terminations Before terminating wires, open the power supply circuit breaker. Failure to do so can result in electrical shock and/or explosion. WARNING 1. Install hazardous area seals within 2 inches (5 cm) of the meter body junction boxes. For ATEX, see the certificate for the conditions for safe use.

  • Page 28: Table 3.1 Lefm 380Ci-R Transducer And Rtd Terminations (See Figure 3.2)

    LEFM 3xxCi User Manual IB1406 Rev 12 Table 3.1 LEFM 380Ci-R Transducer and RTD Terminations (See Figure 3.2) Transducer Cable Identification G3 J-Box Termination Meter Body Junction Box Wire Name Terminal Device RTD (+) RTD (-) 1B - Upstream JBOX-TB3...
  • Page 29 LEFM 3xxCi User Manual IB1406 Rev 12 Transducer Cable Identification G3 J-Box Termination Meter Body Junction Box Wire Name Terminal Device 6 DN (-) 7 DN (+) SHIELD 2B - Upstream JBOX-TB1 7 DN (-) 8 DN (+) SHIELD 2B - Upstream JBOX-TB1 8 DN (-) To validate a meter’s installation, perform the procedures in Section 4, Meter Installation Check-Out.

  • Page 30: Remote Mount Transmitter Installation Procedure

    LEFM 3xxCi User Manual IB1406 Rev 12 Remote Mount Transmitter Installation Procedure It is recommended that the transmitter be mounted at a convenient working height. The recommended height from the floor to the bottom of the transmitter is 4.5 feet (1.4 meters). While an installation in direct sun is acceptable, an installation in the shade will increase the life of all components.

  • Page 31: Transmitter Connections - All Models

    LEFM 3xxCi User Manual IB1406 Rev 12 Transmitter Connections – All Models The physical properties, acoustic properties, and calibration of the meter body are pre-programmed into the transmitter; therefore, the meter body and transmitter are manufactured as a matched set and must be installed as a pair.
  • Page 32 LEFM 3xxCi User Manual IB1406 Rev 12 Transmitter Terminations Before inspecting components, open the power supply circuit breaker. Failure to do so can result in electrical shock and/or explosion. WARNING Figure 4.1 Fully Assembled Transmitter The four conduit entries at the rear of the transmitter are for user connections. A hazardous area conduit seal is required within 2 inches (~5 cm) of the device on every entry used.

  • Page 33: Table 4.1 Power Terminations

    LEFM 3xxCi User Manual IB1406 Rev 12 Fiber Port Fiber mode RJ-45 for copper mode TB2, 32 pins TB1, 2 Figure 4.2 User Terminations, Rear View Note – Conductor insulation for external circuits must be rated for 300V and a minimum temperature of 90ºC.

  • Page 34: Table 4.2 Analog Inputs (User 1)

    LEFM 3xxCi User Manual IB1406 Rev 12 Figure 4.4 AC Power Terminations Figure 4.5 Power Terminations (TB1 has terminals 1 and 2 only –Safety earth/ground shown two places above) User 1 and User 2 Inputs/Outputs There are two groups of inputs/outputs in this transmitter. The groups are organized as User 1 and User 2. Each user group is galvanically isolated from the other user group and from the incoming power supply.

  • Page 35: Table 4.3 Analog Outputs (User 2)

    LEFM 3xxCi User Manual IB1406 Rev 12 Figure 4.6 Typical Analog Input Analog Outputs(Terminal Block 2) – Recommended 16 to 28 AWG wire TB2 contains the transmitter’s analog outputs, described below in Table 4.3. A typical schematic for the analog outputs, including a depiction of the terminal block 2 configuration, is shown below in Figure 4.7. Table 4.3 Analog Outputs (User 2) Analog Output 1 TB2, Pin 9...

  • Page 36: Table 4.5 Lefm 380Ci Digital Signals

    LEFM 3xxCi User Manual IB1406 Rev 12 Table 4.5 LEFM 380Ci Digital Signals Terminal Signal Pulse Description Voltage Description User 1 User 2 Pulse A precedes Pulse B by 90 degrees = forward flow Pulse A — TB2, Pin 12 TB2, Pin 28 (Volume) Pulse B precedes Pulse A by 90 degrees =...
  • Page 37 LEFM 3xxCi User Manual IB1406 Rev 12 Grounding – Recommended 18 AWG wire (internal) and 16 AWG wire (external) There are earth points on the inside of the junction box at the meter body (if remote mount) and on the outside of the enclosure.

  • Page 38: Table 4.6 Ground Connections

    LEFM 3xxCi User Manual IB1406 Rev 12 Table 4.6 Ground Connections Terminal Description TB2, Pin 11 Isolated ground for User 1 TB2, Pin 16 Isolated ground for User 1 TB2, Pin 21 Isolated ground for User 2 TB2, Pin 22 Isolated ground for User 2 TB2, Pin 27 Isolated ground for User 2...

  • Page 39: Table 4.7 Terminations For Serial Communications

    LEFM 3xxCi User Manual IB1406 Rev 12 MT-RJ Fiber Connection RJ45 Connection Figure 4.10 Ethernet Locations Serial Communications – Recommended 16 to 28 AWG wire The serial communications are Half-Duplex (two-wire). Terminations for serial communications are provided in Table 4.. A typical schematic showing the serial communications is shown below in Figure 4.. Table 4.7 Terminations for Serial Communications Port Name Termination...

  • Page 40: Meter Installation Check-Out

    Standard deviations of Paths 2 and 3 are less than 4% (for flowing conditions). Output Test Mode The Output Test mode is used during field testing or verification checks. This output test is best done using the Cameron provided software – LEFMLink. Section 5 Page 35...

  • Page 41: Understanding Flow Calculations

    LEFM 3xxCi User Manual IB1406 Rev 12 Understanding Flow Calculations Measuring Flow Velocities LEFM ultrasonic flowmeters 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.

  • Page 42: Measuring Flow Rate

    (actual) conditions. The output from the LEFM must be sent to a suitable flow computer to calculate the volume at “base” conditions; the values upon which custody transfer or allocation transactions are typically based. The Cameron Scanner family of EFM/RTU flow computers may be used for this function.

  • Page 43: Operations

    LEFM 3xxCi User Manual IB1406 Rev 12 Operations Definitions SNR – Signal to Noise Ratio Gain – Required gain to amplify signal Rejects – Percentage of Data Rejects due to low SNR VOS – Velocity of Sound IOP – Input Output and Power Board CTC –...

  • Page 44: Display

    LEFM 3xxCi User Manual IB1406 Rev 12 Display The transmitter has a 400x240 pixel LCD. The display shows the meter’s indicated flow, totalized flow, fluid properties, and diagnostics data. A user can touch the IR sensor to change the displays. As the user touches the IR sensor, the display will move to the next display.
  • Page 45 LEFM 3xxCi User Manual IB1406 Rev 12 Display 1—Main Display Data Flow rate units: Cubic meters/hour –M3/H Cubic meters/second – M3/S Cubic feet/sec – CFS Figure 6.2 Display 1 – Main Display Data Alarm Conditions The LEFM 3xxCi’s automatic fault detection system is specially designed to verify the performance of the transducers and transmitter electronics and to alert personnel when abnormal operating conditions are detected.
  • Page 46 LEFM 3xxCi User Manual IB1406 Rev 12 Display 2 — Process Properties Figure 6.3 Display 2 – Process Properties Display 3— Alarm Summary Kfactor for the meter shown Also alarms that require user acknowledgement are shown. These alarms include: EXE_CKSUM - Executable checksum CFG_CKSUM - Configuration checksum NVRAM –...
  • Page 47 LEFM 3xxCi User Manual IB1406 Rev 12 Display 4—Acoustic Path Data (Two screens, first for paths 1 through 4 and the second for paths 5 through 8) Figure 6.5 Display 4 – Acoustic Path Data Display 5—Acoustic Path Data (Two screens, first for paths 1 through 4 and the second for paths 5 through 8) Figure 6.6 Display 5 –...
  • Page 48 LEFM 3xxCi User Manual IB1406 Rev 12 Display 6 —Velocity Data (Two screens, first for paths 1 through 4 and the second for paths 5 through 8) Figure 6.7 Display 6 – Velocity Data Path Alarm Conditions The following codes (described in the LEFM Modbus manual) are used to indicate the status of each ultrasonic path: Normal - Path is operating normally •...
  • Page 49 LEFM 3xxCi User Manual IB1406 Rev 12 Display 7 —Analog Inputs Analog Input Measured Channels. States are OK or OOR (out of range) Figure 6.8 Display 7 – Analog Inputs Display 8 —Software Information Software version (example is SW00070) Revision (example is 01.01.01) Executable checksum (example is 2F20ABEC)

  • Page 50: Maintenance

    2. Remove dust, dirt, and other soiling from the enclosure. Use a damp cloth to clean surfaces. 3. Remove access covers. a. Inspect gaskets. Clean gaskets and mating surfaces on the enclosure with water if they are dirty. b. Contact Cameron if there is any corrosion on the mating surfaces. Section 7 Page 45 February 2017...

  • Page 51: Transmitter Troubleshooting

    LEFM 3xxCi User Manual IB1406 Rev 12 c. Verify that gaskets compress when the cover is installed. d. Lubricate the cover threads with petroleum jelly for the aluminum enclosures and anti- seize on stainless steel enclosures. 4. Inspect the enclosure mounting. Internal Electronics Inspection 5.

  • Page 52: Circuit Board Replacement

    Modbus registers. If the setup file is acceptable, then review the power supply voltages on the MXR and CTC (via Modbus registers). If these power supply values are within specification, then contact Cameron’s Measurement Systems division. 7.3 Circuit Board Replacement The transmitter comprises three basic subassemblies.

  • Page 53: Iop - Input/Output And Power Supply Board Or Power Fuse Replacement

    LEFM 3xxCi User Manual IB1406 Rev 12 7.4 IOP – Input/Output and Power Supply Board or Power Fuse Replacement Note on later models – a metrological seal wire connects the IOP to the CTC. This seal wire must be cut to remove the IOP. Figure 7.2 Disassembly Views for IOP Replacement Never open the transmitter when the instrument is energized.
  • Page 54 LEFM 3xxCi User Manual IB1406 Rev 12 5. Locate the IOP/F25 fuse. (Note – the fuse protects the electronics from errant wiring of power to 120/230 VAC). The F25 fuse is on the same side of the IOP board as the plug in connectors, near the power inputs (TB1).

  • Page 55: Ctc And Display Replacement

    LEFM 3xxCi User Manual IB1406 Rev 12 10. Reattach all user terminations or terminal blocks. Confirm that all connectors’ flanges are tightened and all terminations are in a secure condition. 11. Screw the rear lid of the enclosure back on. This should be hand tight with at least 8 full turns of the lid.
  • Page 56 LEFM 3xxCi User Manual IB1406 Rev 12 2. Unscrew the Display board from the CTC. Grasp the edges of the Display and gently pull to lift it from the CTC. If the display is faulty, replace the Display and skip to step 6. Otherwise, put Display into an anti-static bag for later use.

  • Page 57: Mxr Replacement

    LEFM 3xxCi User Manual IB1406 Rev 12 8. Screw the front lid of the enclosure back on. This should be hand tight with at least 8 full turns of the lid. Tighten the 2 mm hex set screw on the lid. Following replacement of the CTC board, the “safe mode”...
  • Page 58 LEFM 3xxCi User Manual IB1406 Rev 12 Figure 7.6 Disassembly Views for removing MXR 1. Loosen the two setscrews on the top of the enclosure. Unscrew and remove the top lid of the enclosure. Note – this may require disconnecting any conduit attached to the transmitter (in order to spin the head).
  • Page 59 LEFM 3xxCi User Manual IB1406 Rev 12 6. Reattach the ribbon cable and the transducer wire connectors. Tighten the connector flange screws and inspect/confirm the wire terminations have not been loosened. Screw the top lid of the enclosure back on with at least 8 full turns of the enclosure. Once fully threaded on, reinstall the setscrews.

  • Page 60: Transducer Installation

    WARNING Manifold O-rings should NOT be installed or replaced without appropriate guidance from Cameron. Should a transducer fail, install a replacement using the following procedure, referring to Figure 7.7 and Figure 7.8 for hardware locations and descriptions: Figure 7.7 Transducer Replacement (Manifold Style Meter)
  • Page 61 LEFM 3xxCi User Manual IB1406 Rev 12 1. Remove the socket head screws (M5 hex wrench) from the manifold cover and remove the manifold cover to reveal the transducer wiring, transformers, and transducer housings. Alternatively for the single transducer enclosure style meter remove the transducer cover. Note –...
  • Page 62 Note – The transducer housings use a retaining system of components. If removing a transducer, site personnel should never attempt to remove the retaining rings located around the transducer. This maintenance shall only be done by Cameron trained technicians. See Figure 7.11 for details.

  • Page 63: Analog Input Verification

    LEFM 3xxCi User Manual IB1406 Rev 12 Figure 7.13 Transducer Internals 6. On manifold style meters connect the new transducer leads to the transformer terminals and reinstall the transformer circuit board if it was removed. 7. Re-install the cover(s). 8. On Manifold style meters Torque the socket head screws to 100 and 180 in-lbs (11.3 to 20.3 nm). Note –...

  • Page 64: Troubleshooting And Diagnostics

    The LEFM transmitter display provides basic diagnostic information. Additionally, more detailed diagnostics are available via software download with serial ports or an Ethernet port. The transmitter’s serial and Ethernet ports use the Modbus protocol. Cameron’s LEFMLink software allows the user to interface with the transmitter via Modbus.

  • Page 65: Table 8.1 Acoustic Signal Diagnostics

    LEFM 3xxCi User Manual IB1406 Rev 12 For troubleshooting ultrasonic signals, the most frequently used diagnostic parameters are shown below in Table 8.1. Table 8.1 Acoustic Signal Diagnostics Diagnostic Parameter Range Typical Values for Normal Operation Rejects (%) 0 to 100% 0 to 5% Performance (%) 0 to 100%...
  • Page 66 LEFM 3xxCi User Manual IB1406 Rev 12 2. Verify continuity of all cable connections. 3. Check the display. If the display reports “Configuration File Needed” or “Flowmeters”, the transmitter needs to be reprogrammed or the CTC board requires replacement. Refer to Section 8, Reprogramming the Transmitter.
  • Page 67 Before each transmitter leaves the factory, it is preprogrammed to work with the meter body with which it will be installed. This information is stored within a configuration file that is maintained by Cameron. The file includes the following information: •...

  • Page 68: Lefm 3Xxci And 3Xxci-R Metrological Seals

    LEFM 3xxCi User Manual IB1406 Rev 12 LEFM 3xxCi and 3xxCi-R Metrological Seals The physical properties, acoustic properties, and calibration of the meter body are pre-programmed into the transmitter; therefore, the programming of the transmitter must be controlled. Failure to control transmitter’s programming can result in erroneous flow measurements outside the stated accuracy.
  • Page 69 LEFM 3xxCi User Manual IB1406 Rev 12 Figure 9.2 shows the seal wire on the transmitter (wire goes from the front cover to the main body). A properly installed wire seal prevents undetected entry into the transmitter. Figure 9.2 Front Lid only - Seal Wire on Transmitter Enclosure Section 9 Page 64 February 2017...
  • Page 70 LEFM 3xxCi User Manual IB1406 Rev 12 The circuit boards also have a tamper evident seal. Figure 9.3 shows the seal between the IOP and the CTC (the enclosure is not shown for clarity). The front lid seal and lid must both be removed to in order to access this seal.
  • Page 71 LEFM 3xxCi User Manual IB1406 Rev 12 Figure 9.5 Seal Wire on Meter Body The remote mount configuration, shown in Figure 9.6., has seal wires for all the junction boxes used in the system. Figure 9.6 Seal Wires for Junction Boxes Section 9 Page 66 February 2017...

  • Page 72: Secondary Seals And Seal Failure Indication

    LEFM 3xxCi User Manual IB1406 Rev 12 Secondary Seals and Seal Failure Indication Secondary Seals Some versions of the 3xxCi LEFM flowmeter have been designed to comply with the requirements of ISA standard 12.27.01, “Requirements for Process Sealing between Electrical Systems and Flammable or Combustible Process Fluids”.

  • Page 73: Recommended Spare Parts

    Hoist Rings (See Section 2 for part numbers) Note – The printed circuit boards contain electrolytic capacitors. To ensure proper operation of these components, perform a functional test on them at least once every 5 years. Contact Cameron for instructions.
  • Page 74 LEFM 3xxCi User Manual IB1406 Rev 12 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.
  • Page 75 LEFM 3xxCi User Manual IB1406 Rev 12 Page 70 August 2017...

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