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2-2 Features
• Safety design in compliance with IEC61010-1.
• Five voltage ranges for insulation resistance measurement.
• Easy auto display of DAR (Dielectric Absorption Ratio) and PI
(Polarization Index) with a single button.
• Auto hold function to hold the measured value.
• Auto discharge function to display the discharge situation on
the monitor.
Measurement categories (Overvoltage categories)
CAT. II : Primary circuit of equipment with a power cord to be
connected to a mains socket.
CAT.III: Primary circuit of equipment that inputs power directly
from the distributor and the circuit from the distributor
to the mains socket.
CAT.IV: Circuit from the leading wire to the distributor
[3] NAMES OF COMPONENT UNITS
3-1 Main Unit