Operation Manual

32 GMC-I Messtechnik GmbH
13 Measurements with Accessories
13.1 Alternating Current I
CLIP
with Clip-On Converter
Connection
Alternating current can be measured in two measuring ranges (1 mA 
10 A ~, 1 A  100 A~) with a clip-on current-voltage converter
connected to the 2 and 3 jacks (e.g. the WZ12C).
Start the I
CLIP
measurement.
Select measuring range.
13.2 Protective Conductor Resistance R
PE
via Clip-On Meter
Connection
Protective conductor resistance can
be determined with the WZ12C clip-on
current transformer.
25 A AC test current (Feature G01 or
SECUTEST SIII+H
):
Use the Z864A shunt in addition to
measuring range matching.
P: potential lead for 4-wire
measurement
The potential lead must be connected to the outgoing protective
conductor at the distributor.
Cable resistance is measured from the device under test to the test instru-
ment without potential lead P. This value may deviate
significantly from actual protective conductor resistance, because the lead
is measured along with the test instrument installation. Resistance from
the probe terminal to contact P at the protective conductor is measured
with the potential lead.
Aux