KPS CAT III Manual De Instrucciones página 21

Switch rotary switch to DCV position, Input terminals and test leads connecting as follows figure, then connect test leads to
circuit.
The meter will record the max, min and average value automatically. The record time base is approx. 5 seconds. Press
SELECT to view the corresponding value.
Sometimes an insulation part with obvious drawbacks (e.g., the insulation part is broken through under high voltage) is
nevertheless with a good absorption ratio (or polarization index). Therefore, absorption ratio (polarization index) cannot be
used to discover local insulation drawbacks other than dampness and contamination.
60
R Sec R 10 Min
DAR（ PI =
absorbing ratio
）= （ polarization index ）
15 1
R Sec R Min
R10Min= Resistance value measured 10 minutes after applying the test voltage; R1Min=R60Sec= Resistance value
measured 10 minutes after applying the test voltage; R15Sec= Resistance value measured 10 minutes after applying the
test voltage.
After performed insulation test, press SELECT button to view DAR or PI. If DAR or PI Value invalid, the meter display - - - - .
15 16