Operation Manual

MI 3310 / MI 3310A SigmaGT Measurements
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Result screens:
Examples of continuity measurement results
Displayed results:
Main result ............. resistance
Note:
 Consider displayed warnings before starting measurement!
 For compensation of test leads Description in Chapter 5.2.1.1 Compensation of test
leads resistance can be used as reference.
5.3.2 Insulation resistance (supply circuit to protective circuit)
The insulation resistance test checks the resistance between the primary supply circuit
and the protective circuit (protective earth) of the welding machine.
The instrument measures the insulation resistance between:
- mains test socket‘s live terminals and mains test socket‘s PE terminal on 3-phase
adapter (A1422).
Insulation LN-PE menu
Test parameters for insulation resistance LN-PE measurement
OUTPUT Test voltage [500 V]
LIMIT
Minimum resistance [2.50 M, 5.00 M, 10.0 M, none]
TIME Measuring time [2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, 180 s, none]
Test circuit and measurement procedure for insulation resistance LN-PE
measurement