GSC60
EN - 16
6.2. M: MEASUREMENT OF INSULATION RESISTANCE
This function is performed in compliance with standards IEC/EN61557-2 and allows
measuring the insulation resistance between the active conductors and between each
active conductor and the earth.
CAUTION
The instrument can be used for measurements on installations with
overvoltage category CAT IV 300V to earth and max 600V between inputs.
Do not connect the instrument on installations with voltage exceeding the
limits indicated in this manual. Exceeding these limits could cause electrical
shock to the user and damage to the instrument.
We recommend holding the alligator clip respecting the safety area created
by the hand protection (see § 4.2).
Check that the circuit being tested is not live and that all possible loads
normally connected to it are disconnected before carrying out insulation
measurement.
The following operating modes are available:
AUTO The test is activated by the GO/STOP key of the instrument (or START of the
remote lead). The instrument automatically detects the presence of possible
capacitance and waits until test nominal voltage is reached (typically approx. 2
seconds). Recommended mode
The operator may set a sufficiently long measuring time (1s 999s) to be able
to move the test lead on the conductors being tested, while the instrument is
carrying out the test. For the whole measurement duration, the instrument will
give out a short sound every second. While measuring, if the insulation
resistance reaches a lower value than the set limit, the instrument will give a
continuous acoustic signal. To stop the test, press again the GO/STOP key on
the instrument or the START key on the remote lead. At the end of test, the
lowest value of insulation (worst case) detected during the test will be shown by
the instrument
Fig. 8: Insulation test by means of single cables and remote lead
Fig. 9: Insulation test by means of shuko plug
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