Hioki MO HiTESTER 3452, Instruction Manual

Page: 67 / 90

13
―――――――――――――――――――――――――――
Chapter 2 Measurement
――――――――――――――――――――――――
DANGER
Probe should only be connected to the
secondary side of a breaker, so the breaker can
prevent an accident if a short circuit occurs.
Connections should never be made to the
primary side of a breaker, because unrestricted
current flow could cause a serious accident if a
short circuit occurs.
The maximum input voltage and maximum rated
voltage to earth are 150 V rms (3452-11) and 500
Vrms (3452-12, 3452-13). Exceeding these limits
can damage the instrument or cause a serious
accident.
To avoid electrical shock, be careful to avoid
shorting live lines with the probes.
2.4 AC Voltage Measurement
The AC voltage of commercial electrical
sources can be measured. Before measuring
the insulation resistance, the instrument can
be used to make sure the object to be
measured is not a live power line.