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Troubleshooting
Troubleshooting
If damage is suspected, check the following before contacting your authorized Hioki distributor
or reseller.
Symptom Verication and/or Solution
• The instrument is indicating an
abnormal measured value for
current.
• Is the measured current value too small for the instrument’s
measurement range?
Wrap the wire around the jaw one or more times. Each additional
wrap of the wire will increase the measured value, so that wrapping
it once yields a measured value that is twice the actual value and
wrapping it twice yields a measured value that is three times the
actual value.
• Are the tips of the jaw open?
• Is the jaw damaged?
If the sensor is damaged or cracked, it will not be able to measure
current accurately. Send the instrument for repair.
• When readings from the
instrument are compared with
those of another clamp-on current
meter, the measured values differ.
• The instrument cannot accurately measure waveforms that contain
a component that falls outside the frequency characteristics range.
• Since the instrument performs true RMS measurement, it can
accurately measure distorted waveforms. When measuring a
distorted waveform, the measured value will differ from a clamp-on
current meter that uses the averaging method.
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