User Manual

GMC-I Messtechnik GmbH 15
• The 10 A current measuring range is protected by a 10 A /
600 V fuse.
• If a fuse blows, eliminate the cause of the overload before
placing the multimeter back into operation!
• Replacement of the fuses is described in chapter 16.2 on
page 32.
9.1 AC Current Measurement with (Clip-on) Current Transformer
9.1.1 Transformer Output mA/A
Attention!
!
If current transformers are operated with an open circuit
on the secondary side, e. g. due to defective or discon-
nected leads, a blown fuse in the multimeter, or a
wrong connection, dangerously high voltages may
occur at the connectors. Therefore, make sure that the
current circuit of the multimeter and secondary winding
of the transformer connected to the multimeter form an
intact circuit. Connect the transformer to the and mA
or A sockets.
Some current transformers include safety devices which pre-
vent dangerous voltage increases at open electrical circuits.
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