Summary of Contents for FMC Technologies MPU B Series
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Multipath Ultrasonic Gas Flow Meter MPU Series B (6 Long Transducers) Transducer Replacement Procedure Procedure Manual MNKS024 Note: This manual is the Transducer Replacement Procedure for the old style MPU Series B ( 6 Long Transducers) The Most Trusted Name In Measurement...
MPU Transducer Replacement Procedure ______________________________________________________________________ 1.3. Trademarks Products listed are trademarks of their respective manufacturers. Company names listed are trade names of their respective companies. 1.4. Equipment Required • Adjustable wrench • Hexagonal key 4, 6 and 8 mm • Oilstone or fine file •...
Kongsberg MPU Ultrasonic Gas Flow Meter _______________________________________________________________________ Caution: Spesial attention is required to avoid damages to flame paths, see Picture 1. If the flame paths are damaged, the parts must be replaced and NOT repared. Flame paths Outer surface Inner surface Picture 1 Flame Paths ______________________________________________________________________...
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Kongsberg MPU DISMOUNTING PROCEDURE Ultrasonic Gas Flow Meter _______________________________________________________________________ 2. DISMOUNTING PROCEDURE This procedure describes how to remove and mount a Transducer with NO PRESSURE in the pipeline. This can only be done before the spool piece is installed in the pipeline, or if the operational pressure is atmospheric and the pipeline is drained of any lethal or flammable gases.
MPU Transducer Replacement Procedure ______________________________________________________________________ 2.1. Dismounting, Short Form A. Remove the mechanical protection for the transducers (if any). B. Make sure there is no pressure in the pipe. C. Unscrew the 4 screws on the End Cover and remove it (ref. section 2.3).
Kongsberg MPU DISMOUNTING PROCEDURE Ultrasonic Gas Flow Meter _______________________________________________________________________ 2.2. Dismounting Cable Gland From End Cover 2.2.1. Dismounting (European Model) NOTE: It is not necessary to dismount the Cable Gland from the End Cover to remove a Transducer. A. Dismount part C of the Cable Gland. See Figure 1 below. B.
MPU Transducer Replacement Procedure ______________________________________________________________________ 2.2.2. Dismounting (USA Model) NOTE: It may not be necessary to dismount the Conduit from the End Cover to remove a Transducer. However, it may ease the operation as the Conduit is not very bendable. A.
Kongsberg MPU DISMOUNTING PROCEDURE Ultrasonic Gas Flow Meter _______________________________________________________________________ 2.3. Dismounting End Cover Before removing the End Cover, make absolutely sure that there is no pressure in the pipe! A. Remove the 4 screws (see picture below) located on the End Cover (quantity may vary on 6”...
MPU Transducer Replacement Procedure ______________________________________________________________________ C. Make sure that the Fastening Cover is not subjected to water ingress or mechanical damage while dismounted. Picture 4 Fastening Cover Parts Figure 3 Fastening Cover Assembly Mounted MNKS024 Page 14 of 31...
Kongsberg MPU DISMOUNTING PROCEDURE Ultrasonic Gas Flow Meter _______________________________________________________________________ 2.5. Dismounting the Transducer A. If the Fastening Cover is removed or the Locking Screws are in outer position, see Figure 3, the Transducer can be removed. Enter the Transducer Removal Wrench (TRW) to the threads of the Transducer and turn clockwise two to three turns.
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Kongsberg MPU Mounting Procedure Ultrasonic Gas Flow Meter _______________________________________________________________________ 3. MOUNTING PROCEDURE 3.1. Pre-mounting Procedure Before starting the mounting procedure, the following procedure must be performed: 3.1.1. Cleaning Pollutions must be removed using suitable tools and liquids, preferably isopropanol. 3.1.2. Visual Inspection •...
MPU Transducer Replacement Procedure ______________________________________________________________________ 3.2. Mounting, Short Form CAUTION: Make sure the Transducers are mounted in correct position according to the calibration certificate. A. Replace o-rings and back-up rings. Use silicon grease on O- rings and copper grease (e.g. Copaslip) on the screws. B.
MPU Transducer Replacement Procedure ______________________________________________________________________ 3.3. Mounting the Fastening Cover A. Remove the old O-rings. B. Make sure that the mating faces are clean. When cleaning a joint face, use a tool which is not likely to score or damage the face, and remove any burrs or nicks with an oilstone or fine file.
Kongsberg MPU Mounting Procedure Ultrasonic Gas Flow Meter _______________________________________________________________________ 3.4. Mounting Transducer TRANSDUCER ASSEMBLY Detail B Figure 5 Transducer Assembly ITEM NAME, TYPE, DIMENSION Transducer Front Transducer Body Transducer Insertprobe Transducer Body Elongation O-ring 18.77x1.78 V70 Back-up ring 19.4x22.0x1.2 O-ring 25.12x1.78 V70 Back-up ring 26.2x29.0x1.4 Cable 2x0.5 mm²...
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MPU Transducer Replacement Procedure ______________________________________________________________________ A. Remove the old O-rings and Back-up rings. B. Make sure that the mating faces are clean and dry. When cleaning a joint face, use a tool which is not likely to score or damage the face, and remove any burrs or nicks with an oilstone or fine file.
Kongsberg MPU Mounting Procedure Ultrasonic Gas Flow Meter _______________________________________________________________________ 3.5. Mounting Cable Gland to End Cover 3.5.1. Mounting (European Model) A. If removed, mount part A of the Cable Gland to the End Cover, see Figure 6 below. Use Locktite 577 or equivalent on the threads.
MPU Transducer Replacement Procedure ______________________________________________________________________ 3.5.2. Mounting (USA Model) A. If removed, mount part A of the cable gland to the End Cover, see Figure 7 below. Use Locktite 577 or equivalent on the threads. B. Mount the part B of the Cable Gland to part A of the Cable Gland.
Kongsberg MPU Mounting Procedure Ultrasonic Gas Flow Meter _______________________________________________________________________ 3.6. Mounting the End Cover A. Remove the old O-rings. Make sure that the mating faces are clean. When cleaning a joint face, use a tool which is not likely to score or damage the face, and remove any burrs or nicks with an oilstone or fine file.
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Parameter Configuration Kongsberg MPU Ultrasonic Gas Flow Meter _______________________________________________________________________ 4. PARAMETER CONFIGURATION 4.1. General It is necessary to update the database if transducers have been replaced. During first time assembly database configuration will be a part of the process, and this chapter will be irrelevant. Updating the database requires knowledge of how to manouvre in the MPU 1200 database, and shall be performed by trained personnel.
MPU Transducer Replacement Procedure ______________________________________________________________________ 4.2. Calibration certificate The relevant data in the calibration certificate is stated in the header and the 4 first rows of the table (see Figure 8 below). The header shows: • Date • Pressure • Temperature •...
Parameter Configuration Kongsberg MPU Ultrasonic Gas Flow Meter _______________________________________________________________________ 4.3. Transducer delays The transducers are calibrated in pairs. The transducer delays and delta T for spare transducer pairs are found in the supplied calibration certificates, one certificate for each calibration node. These must be entered for the respective Calibration Nodes.
MPU Transducer Replacement Procedure ______________________________________________________________________ 4.4. Update path lengths Due to minor variations of the length of the transducers, new data for the acoustic path length has to be entered when transducers are changed. The measured transducer lengths for the original transducers are stated in the Calibration Report for the meter.
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Parameter Configuration Kongsberg MPU Ultrasonic Gas Flow Meter _______________________________________________________________________ 4.6. Example Imagine the following situation: 1. A fault is detected at transducer number 5A. 2. Spare transducers are calibrated at pair 1. 3. The system has 3 nodes. What to do: 1.
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The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the specifications are currently in effect. Otherwise, the manufacturer assumes no responsibility for the use of specifications which may have been changed and are no longer in effect. Contact information is subject to change.