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 box. 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 log collection
Figure 1-2: Maintenance log collection parameters
Trend maintenance log collection
Merging the results of two or more Maintenance logs into a single file, allows you to build
a historical database of the meter's performance. Trending the logs indicates changes
Maintenance and Troubleshooting Manual
Maintenance
00809-0600-3104
April 2022
Rosemount Gas Ultrasonic Flow Meters
9
