KYORITSU KEW3125A - Measurement - DAR;PI Procedures; How to Measure DAR;PI; DAR;PI Display Conditions (no)

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3. How to measure DAR/ PI
DAR and PI are automatically measured during a normal
continuousmeasurement of insulation resistances. Set the
Range switch to any desired range and measure the test
objectcontinuously.
-1minafterastartofcontinuousmeasurement:
LCDshowsDARvalue.
-10minafterastartofcontinuousmeasurement:
LCDshowsPIvalue.
WhenDAR/PIvaluesaredisplayedasno:
DAR and PI values are determined by Methods 1. and 2.
as described above, therefore, they are displayed as no
whenthemeasuredinsulationresistancesfallunderanyofthe
followingcases.
*1measuredvalueis0.0MΩ
*2measuredvalueisOL
*OLis displayed when the measured value exceeds
the upper limit of the measuring range at each insulation
resistancerange.
Range Upperlimit
250V 105.0MΩ
500V 1050MΩ
1000V 2.10GΩ
2500V 105.0GΩ
5000V 1200GΩ
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