Operation Manual

22 GMC-I Messtechnik GmbH
10 Measuring Contact Current
Substantiation of the absence of voltage can be provided by means of
contact current measurement (DIN VDE 0701 part 240).
Ð Press the I
B
key.
Ð Contact the measuring point with the + Pole and the COM jack with a
protective conductor potential.
Voltage at the Device Under Test: U
B
< 25 V
Ð Briefly press the START key in order to start the measurement.
Contact current I
B
is measured and displayed.
Voltage at the Device Under Test: U
B
> 25 V
Ð Briefly press the START key in order to start the measurement.
Contact voltage U
B
is measured and displayed.
If the START key is press and held, I
B
is measured and displayed.
10.1 Setting the Limit Value
A limit value for contact current can be selected with the LIMIT key. If a
measured value exceeds this limit value, the red LIMIT LED lights up.
START
START
START