User manual

GMC-I Messtechnik GmbH 3
• The clip-on transformer must be removed from service immedi-
ately if the cables or housing components are damaged.
• Check the secondary circuits of the WZ12A clip-on
transformer on a regular basis to make sure that continu-
ity is uninterrupted. Remove the clip-on transformer from
service if poor contacts become apparent.
• The clip-on current transformer must be protected
against liquids and contamination.
Meaning of Symbols on the Instrument
Warning concerning a point of danger
(Attention: observe documentation!)
Continuous, doubled or reinforced insulation
Indicates EU conformity
This device may not be disposed of with the trash.
Further information regarding the WEEE mark can
be accessed on the Internet by entering the search
term ’WEEE’ at www.gossenmetrawatt.com .
2 General Description
The WZ12 current transformer allows for the interruption-
free measurement of alternating current within various
measuring ranges from 1 mA to 180 A by enclosing the
electrical conductor.
The WZ12A basic model has been designed for general
current measurements in electrical circuits of greater than
15 A. Its low price and compact dimensions make it an
attractive alternative.
Models WZ12B ... F function with practically no eddy-cur-
rent loss at all thanks to high performance core materials.
They demonstrate a minimal loss angle and can thus be
used for power measurement.
Enhanced sensitivity allows for the measurement of leak-
age currents at machinery and within electrical installations
with the WZ12C and the Clip 100S.
The converted output signal is transmitted via 2-conductor
connection with 4 mm angle plugs (Clip 0100S with jack
plugs). The housing and cables are isolated from the live
conductor with double insulation.
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