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The Tester does not have specified accuracy below 200 kΩ . When you
do a test below 200 kΩ or with the leads shorted, the Tester can show a
reading. This is normal for the input circuitry configuration for this Tester.
Only the readings within the specified accuracy range are accurate.
Before an Insulation Test
The Tester includes features that let you adapt the test to your requirements.
You can:
•
Define a test voltage
•
Measure polarization index (PI)
•
Measure dielectric absorption ratio (DAR)
1537/1537-II only:
•
Make a ramp test selection
•
Measure dielectric discharge (DD)
•
Compare insulation resistance
•
Set a time limit/duration for the test
Use these features alone or in combination. Configure or validate (as appropriate)
each feature before you start an insulation test. For connections, see
Figure 7. Insulation Test Connections
Note
L
E
Insulation Tester
Before an Insulation Test
Figure
7.
15
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