Emerson Rosemount 3812 Maintenance And Troubleshooting Manual page 93

Maintenance and Troubleshooting Manual
00809-0100-3812
5. Grasp the module you want to replace and pull it out of the enclosure.
6. Insert the new CPU Module or I/O Module into the enclosure and firmly push until
7. Replace the terminal blocks for the CPU Module and/or the Optional I/O Module
8. Connect to the meter with MeterLink. Open the Meter Monitor (Detailed) view and
9. Close your application connection (MeterLink, AMS
10. If you are not replacing other electronics, replace the end caps and security latches
Rosemount 3812 Liquid Ultrasonic Flow Meter
Figure 3-57: CPU or Optional I/O Module replacement
A. Terminal end of Transmitter Electronics Enclosure
B. CPU Module
C. Optional I/O Module
D. Power Supply board
E. Fuse
F. Internal chassis ground
the board is fully seated into the Backplane Board connectors.
and tighten the flat head screws with a 3mm flat blade screw driver.
verify the meter is acquiring data, the transducers have good signals and flow
profiles for the chords are displayed and run the Zero Flow Calibration Wizard;
select the Calibrate → Zero Calibrate menu and generate the report. Then, collect
and save a Maintenance log to show the "as left" condition of the meter. Or use
™
AMS Device Manager or a HART
Zero Calibration → Start menu or Service Tools → Maintenance → Zero
Calibration → Start.
Field Communicator).
(requires a 3 mm Allen wrench).
®
Field Communicator and select Overview →
™
Device Manager or HART
Meter maintenance
April 2022
®
93