MI 3309 DeltaGT
Single test
39
Figure 5.24: Polarity test menu
Test circuit for polarity test
Figure 5.25: Polarity test of IEC cord
Polarity test procedure
Select the POLARITY function.
Connect the IEC cord to the instrument as shown on
Figure 5.25
.
Press the TEST key for measurement.
Store the result by pressing MEM key (optional).
Figure 5.26: Examples of polarity test result
Displayed results:
Main result ............. PASS/FAIL, description of fault
Note:
Consider any displayed warnings before starting test!
5.2.8 Differential leakage
The purpose of this test is to determine the sum of all leakages flowing from the live
conductors to the earth. The differential method allows measuring the full and true leakage
current, even if there are parallel current paths from the DUT to ground.
The instrument measures:
The differential leakage of the DUT connected to the instrument test socket.
