Operation Manual

MI 3310 / MI 3310A SigmaGT Measurements
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Test circuit and measurement procedure for U no load measurement
 For more information refer to chapter Measurements according to IEC/ EN
60974-4, paragraph No load voltage in 3-phase adapter user manual.
Examples of No load voltage measurement results
Displayed results:
Main result ............. no load a.c. or d.c. peak voltage
Sub-result………….no load r.m.s. voltage
Notes:
 During the test, a mains voltage is connected to the welding machine. Consider
safety precautions.
 Consider any displayed warning before starting measurement!
5.3.10 Clamp current test
Description in chapter 5.2.9 Clamp current test can be used as reference.
5.3.11 Functional test
Descriptions in chapter 5.2.11 Functional test can be used as reference.