MI 3311 GammaGT
Single test
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5.2.7 Polarity test
This test checks the polarity of supply cords. The following faults can be detected:
L OPEN, N OPEN, PE OPEN, L-N CROSS and MULTIPLE FAULT.
Figure 5.19: Polarity test menu
Test circuit for polarity test
Figure 5.20: Polarity test of IEC cord
Polarity test procedure
Select the POLARITY function.
Connect the IEC cord to the instrument as shown on figure 5.20.
Press the TEST key for measurement.
Store the result by pressing MEM key (optional).
Figure 5.21: Examples of polarity test result
Displayed results:
Main result ............. PASS/FAIL, description of fault
Note:
Consider any displayed warnings before starting test!
