Operation Manual

6 GMC-I Messtechnik GmbH
3 How to test insulation meters
The ISO-Kalibrator 1 permits testing of insulation meters hav-
ing a nominal voltage up to 1000 V. The test range extends
from 100 k to 100 M.
Caution!
!
To assure the safety of both the user and the unit,
do not on any account apply a test voltage of more
than 1000 V to ground to the sockets of the unit.
The load limits of the test resistors given in section
5, Specifications, must on no account be exceeded.
To test your insulation meter, proceed as follows:
1) Connect the two probes of your insulation meter to the test
sockets B1 and B3 (blue sockets).
2) Select the desired test resistor with the rotary knob on your
ISO-Kalibrator 1.
3) Select the desired test voltage and the desired measuring
range on your insulation meter according to the operating
instructions of your insulation meter.
4) Perform the insulation measurement. Wait for your meter to
stabilize – particularly in the case of higher resistance val-
ues, 10 M and higher.
5) Read the measured value on your insulation meter.