User Manual

8 GOSSEN METRAWATT GMBH

Residual Current Limit Value Violations

The METRATESTER



5/5-F is equipped with a selector switch independent, residual current mon-

itoring function. If the red error lamp lights up and no message regarding a limit value violation

appears at the display, residual current at the mains outlet is dangerously high – regardless of

the selector switch setting. If this is the case, it is advisable to measure residual current (dif-

ferential current) by turning the selector switch to the “I

DIFF

” position.

Only the displayed numeric value should be considered when evaluating residual current with

the selector switch in the “I

DIFF

” position. The error lamp may be caused to light up as a result

of residual current monitoring for values of as low as approximately 3.2 mA. The error lamp

lights up in any case as of 3.5 mA.

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 mains connection must be fused! The fuse may not exceed a 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 function selctor switch, even if no DUT has been connected. Thus the presence of char-

acters at the display indicates the presence of voltage – independent of function selctor

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