(4) Resistive Leakage Current (Ior) & Insulation Resistance (M
Ω
) Measurement
ATTENTION FOR Ior/M
Ω
MEASUREMSNET
*
The insulation resistance measurement by this instrument is done on the live
lines and the measured values may differ from ordinary insulation resistance
testers in case.
*
As the input voltage for measurement of insulation resistance in the circuit is
different in case of single phase, 3 phase/3 wires and 3 phase/4 wires respectively,
use the instrument correctly referring to the wiring methods.
*
For Ior (M
Ω
) measurement, the instrument is looking for phase angle of current
and voltage. Take care for wiring sufficiently. Also, if frequency setting is not
correct, the phase angle is changed and the correct measurement cannot be done.
Set the frequency correctly according to the circuit to be measured.
U
WARNING
Do not apply the voltage more than 500V AC to the voltage input terminals
(~VINPUT). It may cause breakage
6B
POSSIBLE ELECTRICAL SHOCK
●
Measuring test leads are consumable articles. Confirm there is no damage at
insulation coating of the wire before use. When having found unusual point,
stop the use and repair or replace to the new one.
U
POSSIBLE BURNING & WOUND
●
Connect the lead wires correctly & firmly.
It may cause spark by mis-connection.
