OPERATING MANUAL MIC-2505 version 1.01
9
Note:
During measurements of insulation resistance, dangerous voltage up to 2.5 kV
occurs at the ends of test leads of MIC-2505 meter.
It is forbidden to disconnect test leads before the measurement is completed.
Failure to obey the above instruction will lead to high voltage electric shock and
make it impossible to discharge the tested object.
- Timer measuring the measurement time is started when U
ISO
voltage is stabilized.
- Symbol
LIMIT
means operation with limited converter current. If this condition persists for 20 se-
conds the measurement is interrupted.
- If the timer reaches characteristic points (tx times), then for 1s instead U
ISO
a symbol of this point is
displayed which is accompanied by a long beep.
- During the measurement LED is lit in yellow.
- After completion of measurement, the capacitance of the tested object is discharged by shorting
R
ISO
+
and
R
ISO
-
terminals with resistance of 100 k
Ω
.
- In case of power cables measure the insulation resistance between each conductor and other con-
ductors shorted and grounded (figure below).
