Operation Manual

MI 3310 / MI 3310A SigmaGT Measurements
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 For more information refer to chapter Measurements according to IEC/ EN
60974-4, paragraph Primary leakage current in 3-phase adapter user manual.
Examples of primary leakage current measurement results
Displayed results:
Main result ............. primary leakage current
Notes:
 During the test, a mains voltage is connected to the welding machine. Consider
safety precautions.
 Consider any displayed warning before starting measurement!
5.3.8 Touch leakage current
Description in chapter 5.2.7 Touch Leakage can be used as reference.
5.3.9 No load voltage
The purpose of this test is to check that the voltage on the welding outputs doesn’t
exceed the safety limits.
U no load menu
Test parameters for U no load measurement
VOLTAGE [AC, DC]
LIMIT AC
Maximum voltage:
 68 V peak and 48 V r.m.s.
 113 V peak and 80 V r.m.s.,
 141 V peak and 100 V r.m.s.,
 none.
LIMIT DC Maximum voltage:
 113 Vpeak,
 141 Vpeak,
 None.