70
Troubleshooting
Before sending the instrument for repair
If it is not operating correctly, check the following items.
Symptom Cause, check, countermeasure
The power does not turn on. There are no batteries inside.
The batteries have been incorrectly
installed.
→Refer to how to install the batteries.
Have the batteries been depleted?
→Replace the batteries with new ones.
If the power still will not turn on, the
device has a failure and needs to be
repaired. (p. 25)
The instrument is
unintentionally turned off
during a measurement.
The batteries to be used may have been left
for a long time.
→Battery voltages may recover as time
proceeds, which seem to be high
enough to work.
However, such batteries, which provide
only a little energy, cannot work.
Replace the batteries with new ones.
The batteries have high internal resistance.
→Such high-internal-resistance batteries,
which provide only a little energy even
if they are new, cannot work.
Use batteries produced by other
manufactures.
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