Operation Manual

MI 3310 / MI 3310A SigmaGT Measurements

Test circuits for insulation resistance measurement

Measurement of insulation resistance of Class I DUT

Measurement of insulation resistance of fixed installed DUTs of Class I

Insulation resistance measurement procedure

 Select the Insulation function.

 Set test parameters.

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

 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 PE test socket of the instrument to metallic enclosure of the fixed

equipment.

 Press the START key for measurement.

Examples of insulation resistance measurement results

Displayed results:

Main result ............. Insulation resistance