1. Start measurement from Control > Start Measuring.
Since this is the first time measurement is started after initialization, the DGA
monitor will perform autocalibration. Autocalibration improves measurement
performance by adapting the DGA monitor to transformer oil conditions.
After autocalibration, DGA monitor continues to measure normally.
Autocalibration takes from 2 to 5 days depending on conditions.
Measurements performed during autocalibration do not meet the accuracy
and repeatability specifications and they should not be used for transformer
diagnostics.
2. Wait for the first measurement cycle to complete. Depending on the starting conditions, it
may take up to 90 minutes. Verify that there are no oil leaks in the oil pipes or inside DGA
monitor.
5.18
Finalizing installation
1. If you have connected DGA monitor to a host system using Ethernet or RS-485
connections, verify the availability of measurement data from the host system.
2. Verify that you have performed all installation steps according to the configuration report.
3. Before leaving the installation site, perform a safety check and lock up according to the
post-installation checklist.
Keep the doors closed and locked when not actively working inside the
enclosures or accessing the service port locally. Keeping the DGA monitor
door closed when performing measurement is important for temperature
management of measurement components.
More information
‣
DGA monitor configuration report (page 87)
‣
Post-installation checklist (page 89)
OPT100 Installation Guide M211857EN-R
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