Operation Manual

MI 3310 / MI 3310A SigmaGT Measurements

Test circuits for Insulation - S resistance measurement

Measurement of insulation resistance of class II DUT

Measurement of insulation resistance of accessible isolated conductive parts of fixed

installed DUTs

Insulation resistance – S probe measurement procedure

 Select the Insulation resistance-S probe function.

 Set test parameters.

 Connect device under test to the instrument (see figures above).

 Connect EB/S probe to accessible conductive parts of the DUT.

 For fixed equipment:

 Disconnect mains supply of the fixed equipment;

 Connect LN test socket of the instrument to L/N terminals of the fixed equipment;

 Connect EB/S probe to accessible conductive parts of the fixed installed DUT

 Press the START key for measurement.