User manual

GMC-I Messtechnik GmbH 9

4 Mains Connection

4.1 Connecting the Tester

➭ Connect the tester to the 230 V mains with the mains plug (1). If no earthing contact

socket is available, or if only a three-phase socket is available, connection of the phase

conductors, the neutral conductor and the PE conductor can be accomplished with the

help of the adapter socket. It includes 3 permanently connected cables and is included

with the KS 13 accessory cable set.

Attention!

The instrument may only be connected to electrical supply systems with 230 V/

240 V which conform to the valid safety regulations (e.g. IEC 60364, VDE 0100) and

are protected with a fuse or circuit breaker with a maximum rating of 16 A.

The pick-off clips on the cables at the adapter socket may only be connected in the

voltage-free condition!

If mains voltage is present, characters are displayed at the LCD regardless of the position of

the measuring function selector switch, even if no DUT has been connected. Thus the pres-

ence of characters at the display indicates the presence of voltage – independent of measur-

ing function selector switch position.

The mains voltage value is indicated at the display in the “U

Netz

250 V” selector switch posi-

tion. In all other switch detent positions, characters are displayed which have no correlation

to a measured value, if a DUT has not been connected.

KS13

yellow-green

only possible in TN-C systems