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(G) Introduction of other functions
1. Dielectric absorption ratio (DAR):
Ratio of insulation resistance between 1-min and 30-sec
1-min insulation resistance
DAR :
30-sec insulation resistance
2. Polarization index (PI):
Ratio of insulation resistance between 10-min and 1-min
10-min insulation resistance
PI :
1-min insulation resistance
Lower insulation resistance tested takes longer test
time, which would deteriorate the specimen. Thus,
higher DAR or PI (as close to 1) would create better
insulation grade of specimen.
Operation:
During the test run, wait for one minute, DAR will be
displayed automatically; wait for 10 minutes, PI will be
displayed automatically.
3. AUTO OFF:
System will shutdown automatically after 3 minutes without
operation.
Test Equipment Depot - 800.517.8431
