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Users Manual
18
Dielectric Absorption Ratio
If appropriate, as part of the insulation test, the Tester stores the dielectric
absorption ratio (DAR) with the measurement. A DAR test has a 1-minute
duration and is measured and stored as invalid data for all insulation tests
<1minute. The DAR test automatically stops when the insulation test time
reaches 1 minute. The results are available for display after test or by storing
the test results and viewing the DAR field in record. The field is identified by:
Note
If appropriate, as part of the insulation test, the Tester stores the
capacitance measurement. The results are available for display after
the test is complete by viewing the capacitance field in the stored
record.
Insulation Test
XW Warning
To prevent possible electric shock or personal injury:
Be aware that measuring insulation resistance requires the
application of potentially dangerous voltages to the circuit. This
may include exposed bonded metalwork.
Remove all power from the circuit under test and discharge circuit
capacitance before testing a circuit with the Tester.
Before a test starts, ensure that the installation is wired correctly
and no personnel are endangered by any tests.
Connect the test leads to the Tester inputs before you make any
connections to the circuit under test.
The Tester also does the DAR test in accordance with the Chinese
standards:
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