5.4 Resolving measurement cycle fault
Figure 44 Measurement cycle fault active
Measurement cycle fault (code 2099) device alert is activated when DGA monitor has
detected a problem that prevents measurement, and has automatically stopped running
measurement cycles. Possible causes include hardware failure and problems with the oil
connection. For example, someone may have closed the oil valve(s) on the transformer and
prevented the DGA monitor from pumping oil.
To resolve the problem:
1. Connect to the user interface as the Admin user.
2. Read any active messages in the user interface.
3. Check currently active alerts on the Alerts page.
4. Check status of DGA monitor on the Control page.
5. Inspect the DGA monitor and oil lines to determine the cause of the error, and remove it if
possible. For example, open the oil valves on the transformer if they are closed.
6. If you have resolved the likely problem or there does not seem to be an apparent cause,
select Control > Start Measuring to restart measurement.
7. Wait to see if the DGA monitor is able to complete a measurement cycle and keep running
normally.
The device alert will change to Measurement cycle started after an error (code 1098),
which will be inactivated when the first cycle after the restart is successfully completed.
OPT100 User Guide M211858EN-U
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