11. Optional: Start autocalibration manually to make sure any updates to the autocalibration
mechanism are applied right away.
Autocalibration takes from 2 to 5 days depending on conditions.
More information
‣
Connecting to user interface (page 30)
‣
Starting measurement (page 48)
‣
Setting date and time (page 49)
‣
Starting autocalibration manually (page 73)
‣
Stopping measurement (page 74)
4.5
Starting autocalibration manually
Autocalibration improves measurement performance by adapting the DGA monitor to
transformer oil conditions. Autocalibration takes from 2 to 5 days depending on conditions.
It is not normally necessary to start autocalibration manually, and autocalibration always runs
automatically after a DGA monitor is initialized. However, it is recommended to start
autocalibration in some specific cases, for example after the software of the DGA monitor has
been updated.
1. Connect to the user interface as the Admin user.
2. Select Control and verify that the system is currently measuring. You can only start
autocalibration when DGA monitor is in Measuring state.
3. Select Autocalibration and verify the current autocalibration status. Do not attempt to
start autocalibration if it is already ongoing.
4. Select Start. DGA monitor will perform autocalibration and continue with normal
measurement cycles after it is completed.
More information
‣
Connecting to user interface (page 30)
4.6
Repair
If your OPT100 DGA monitor needs repair, note the following:
• Make sure you have the latest product documentation before taking any actions. Check
the OPT100 product page http://www.vaisala.com/opt100 for updates.
• If a repair procedure you need is not available in the documentation, contact Vaisala for
assistance.
Chapter 4 – Maintenance
73
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