4.3 Maintenance
OPT100 DGA Monitor does not require visits to the installation site for preventive maintenance.
There are no consumables or components that must be replaced according to a fixed schedule.
You can check the status of the DGA monitor and update its configuration remotely through
the browser-based user interface. Software of the DGA monitor can be updated remotely as
well.
Indications of the DGA monitor's status are also available to your SCADA system through the
communication interfaces (for example, Modbus). If a problem with the DGA monitor is
indicated, check the user interface.
4.4 Updating DGA monitor software
• Software update file for DGA monitor
Software update may change the settings of your DGA monitor.
This is necessary as new features are added and settings of previously existing
features are updated. After a successful software update, go through the pages
in the Settings menu. For example, verify that the necessary communication
protocols are enabled and their settings are correct.
CAUTION!
Updated software may include improvements to the measurement algorithm.
These updates are only applied to new measurement cycles after the update,
which may cause some discontinuity in the measured gas levels even if the
concentration of gases in the measured oil has not changed. Vaisala recommends
starting autocalibration manually after a software update.
Software update does not delete the measurement data stored on the DGA
monitor.
1. Connect to the user interface as the Admin user.
2. Switch the DGA monitor to Standby mode by stopping measurement.
3. Verify that date and time on the DGA monitor are set correctly.
4. Wait for DGA monitor to stop and enter the Standby mode. Depending on the stage in
the measurement cycle, stopping may take up to 60 min.
5. Select Service > Software update > Update > Browse and locate the firmware update file.
Chapter 4 – Maintenance
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