Hioki CLAMP ON LEAK HiTESTER 3283, Instruction Manual

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Chapter 1 Product Outline
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True rms indication
The true rms conversion circuit delivers accurate
results not affected by leak current distortion.
Filtering
The widespread use of switching power supplies
and equipment incorporating inverter technology
frequently causes harmonics to be
superimposed in the leak current waveform. The
filter in the 3283 allows two kinds of
measurement, for leak current caused by
insulation faults and for leak currents including
harmonics.
Output jack
The output jack allows easy connection to a
level recorder or other equipment (level
recorder output: DC, waveform output: AC).
Unaffected by external magnetic fields and
conductor position
The clamp sensor and magnetic shield are
made of material with high magnetic
permeability, allowing precise measurement also
in the vicinity of transformers, electric motors
and other sources of magnetic fields. Since the
influence of the conductor position on the
measurement result is negligible, residual
current characteristics are not a problem even
when using the unit as a zero-phase
transformer.
Low power consumption
Power consumption is less than 100 mV A,
allowing the unit to operate continuously for up
to 40 hours on a single 6F22 (006P) battery.