Hioki 3255-50 HiTESTER, Instruction Manual

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21
2.3 Current Measurement
To perform measurement, an optional Clamp-on
probe is required.
2.3 Current Measurement
Connect the Clamp-on probes to the product
first, and then to the active lines to be mea-
sured. Observe the following to avoid electric
shock and short circuits.
• To avoid short circuits and potentially life-
threatening hazards, never attach the
Clamp-on probe to a circuit that operates
at more than 600 V, or over bare conduc-
tors.
• Clamp-on 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.
• When the Clamp-on probe is opened, do
not allow the metal part of the clamp to
touch any exposed metal, or to short
between two lines, and do not use over
bare conductors.
• Never apply voltage to the Clamp-on probe
when a current measurement function is
selected. Doing so may damage the prod-
uct and result in personal injury.