Each test procedure can
last from 50 min to 7 h depending on the result.
Complete pressure tightness test for oil
block or measurement module if there has been a leak or you have replaced components during
repair or maintenance work.
If the device is measuring, stop the measurement.
Make sure the DGA monitor cabinet door is closed. Use a free cable gland to connect to
the user interface or use the ETH1 connector for a temporary connection.
CAUTION An open cabinet door
may cause invalid test results.
Connect to the DGA monitor user interface and log in as an Admin user.
Go to Service > Pressure tightness.
Select Test tightness.
Follow the instructions in the user interface.
You will see the test results in the user interface.
Contact Vaisala technical support if the problem remains after you have completed all
the suggested repair actions.