User manual

20 GMC-I Messtechnik GmbH
5.6.2 Measuring Residual Current
Attention!
!
The protective conductor test must first be performed and passed.
➭ Connect the DUT as shown in the followig picture..
➭ Connect the cable with the test probe to the “2 mA” jack.
➭ Set the measuring function selector switch to the “I
Diff
20 mA” position.
➭ Start up the device under test.
➭ Contact all exposed metal parts at the device under test with the test probe.
➭ Read the residual current value in mA from the display. This value may not exceed
0.5 mA.
Measurements must be performed with the mains plug poled in both directions. The larger of
the two measured values applies.
Note!
If no device under test is connected, random characters appear at the digital display
which may not be construed as measured values.
I
Diff
To exposed metal
parts
To the mains outlet
KS17-4