Hioki CM3286 - Page 71

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Troubleshooting
Symptom Verication and/or Solution
• The current value is larger than
expected.
• A current value is displayed even
though there is no input.
• The instrument cannot perform measurement accurately in the
presence of a strong magnetic eld from a source such as a nearby
transformer or high-current circuit or in the presence of a strong
electric eld from a source such as a wireless device.
• A sound is being emitted by the
instrument’s jaw.
• The jaw may emit sound when measuring AC currents in excess of
approx. 500 A, however, there is no effect on the measurement.
• The measured value does not
appear.
• No measured value is displayed,
even when the connection cords
are shorted.
• Insert the connection cords all the way.
• Use the proper measurement method.
If no measured value is displayed after attempting the above two
solutions, the instrument may be broken. Have the instrument
repaired.