Emerson Rosemount 3812, Руководство по техническому обслуживанию и устранению неисправностей

Страница: 7 / 132

1.3 Routine maintenance
Routine maintenance operations requires adherence to all applicable regulations and laws
and safety training for personnel to perform the maintenance operations. Review your
organization’s best practices procedures before performing routine maintenance.
1.3.1 Maintenance logs and reports
To monitor the performance health of the meter, and ensure it is operating within
acceptable specifications, routine diagnostics should be performed. Collecting a
maintenance log gives you a snapshot of the current health of the meter and you can
compare the inspection reports from previously saved logs. Use the Logs/Reports menu
and click
Maintenance Logs and Reports
. MeterLink displays the Maintenance Logs and
Reports dialog. Choose the time duration, log format and collection rate for the output file
and click the
Start button. You can open the file immediately after it is generated or view it
at a later time. It is recommended that a Maintenance log be collected after an upset in
the system.
In establishing a baseline to be used for the trending of the meter diagnostics, it is very
helpful if a set of log files are collected immediately after the meter has been installed in
the field. Preferably, collect the log files at several velocities within the operating range of
the meter. This helps establish that the flow profile is relatively constant throughout the
meters operating range (except velocities below 3 ft/sec where the profile may vary).
Maintenance and Troubleshooting Manual Routine Maintenance
00809-0100-3812 April 2022
Rosemount 3812 Liquid Ultrasonic Flow Meter 7