Hioki 3255-50 HiTESTER, Instruction Manual, Page: 23 / 52

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2.2 Voltage Measurement
2.2 Voltage Measurement
• The maximum input voltage is 1000
VDC,1000 Vrms(sin), or 10
7
V•Hz. Attempt-
ing to measure voltage in excess of the
maximum input could destroy the product
and result in personal injury or death.
• The maximum rated voltage between input
terminals and the ground is as follows;
(CAT II) DC 1000 V, AC1000 Vrms (sin) or
10
7
V•Hz
(CAT III) DC 600 V, AC600 Vrms (sin) or
10
7
V•Hz
Attempting to measure voltages exceeding
this level with respect to ground could
damage the product and result in personal
injury.
• To avoid electrical shock, be careful to
avoid shorting live lines with the test leads.
• For safety, test lead connections must
always be made at the secondary side of a
circuit breaker.
The indicated value may vary due to the existence
of induced voltage under no-power conditions.
However, this is not a problem.