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Before sending back your device for repair
/
Symptom
Cause, remedy
No waveform is displayed on the waveform measuring
instrument.
Re-execute demagnetization and automatic zero-
adjustment. (p. 3 3)
Make sure that the input coupling of the waveform
measuring instrument is set to DC. (p. 3 8)
If the issue has not been resolved, the device may be
malfunctioning.
Have the device repaired.
A resonant sound is emitted from the sensor heads.
This does not affect the measurement accuracy.
The sensor head may emit a resonant sound depending
on the amplitude and frequency of the current under
measurement.
The resonant sound emitted from the sensor heads
becomes louder.
Calibration of the device is recommended because the
gap may adversely affect the measurement accuracy.
The gap between the upper and lower sensor heads may
have increased.
Troubleshooting
4
85
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