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Cirris 4200 Series User Manual
● The default setting of 0.010 seconds (10 milliseconds) should be adequate to test most cables. A longer duration will
increase the high voltage test time.
● Since absorbed moisture may not have time to be “dried out” before the Insulation Resistance Test, consider using
the advaned Soak setting to “dry out” your insulation. A shorter soak time or not having soak time is more likely to
fail due to humidity related problems
Dielectric Withstand Duration
● A longer duration provides a more stringent test for predicting dielectric failures (exhibited as sudden arcs); howev-
er, equivalent dielectric errors can be found by compensating a shorter duration with a higher high voltage setting.
● A longer duration may be better for predicting some types of insulation failures and may increase the chance of
detecting a breakdown condition.
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