TechnipFMC Smith Meter MPU 1600c, Инструкция по установке, эксплуатации и обслуживанию

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Issue/Rev. 0.1 (11/18) ║ MNKS025 • Page 109
After replacement of the UMCB board, the following actions must be performed:
1. Configure UMCB board with correct network IP address.
2. Load current firmware.
3. Load meter with saved meter database file. (If unavailable, meter must be
re-programmed manually.)
10.4.1. Recommended clock battery replacement interval – 5 years when meter is in
service
The real-time clock (RTC) is used for time stamping of log entries which is incidental
information, each log entry also has a sequence number that can be used to uniquely
identify each entry, the sequence number is not affected by the clock operation. The
life of the RTC battery can vary due to operational conditions, particularly the amount
of time that the unit is left in a powered off state. It is suggested the RTC battery be
replaced approximately every five years or during a regularly scheduled maintenance
period if the meter has been in service with power applied. If the meter has been
powered down for extended periods, it is recommended to replace the battery prior to
placing back into service.
Note: For applications that are under strict metrological control it may be convenient
to replace the battery whenever a W&M official will be on site since the cover seal will
need to be broken and must then be reapplied.
To facilitate replacement of the battery, the UMCB assembly must be removed from the
Ex enclosure to gain access to the rear side of the board assembly to replace the battery.
Battery replacement procedure:
1. Power down the ultrasonic meter and make sure the hazardous area is safe.
2. Remove the W&M seal wire on the appropriate cover bolt.
3. Remove the front cover bolts and open the front cover.
4. It may be necessary to unplug all pluggable connectors that would restrict the
removal of the UMCB assembly from the enclosure to gain access to the rear
mounted battery. These include CN1, CN2, CN3, CN4, CN5, CN6, ETH1 or ETH2
or ETH3. Please make sure that any cable is marked for correct replacement
position. The transducer cables have enough length to allow removal without
disconnecting them.
5. Remove the four mounting screws from the UMCB.
6. Remove the old battery and replace battery with ENERGIZER P/N CR2032
(substitutes not allowed), TechnipFMC P/N 644581418.
7. Place the UMCB assembly back into enclosure and secure with the four mounting
screws.
8. Restore any removed cabling to the same position that it was removed from.
9. Close the front cover, taking care not to pinch any of the internal cables.
10. Follow cover bolt re-torqueing instructions and flame path gap inspection.
11. Power-up the Meter and set the RTC as per section 6.3.2.1.2 of this manual.
12. Re-seal the unit via the cover seal bolts (may require local W&M jurisdiction).
MPU Series C I/O/M Manual Maintenance