Hioki FT6031-50, Инструкция по эксплуатации

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82
Troubleshooting
Symptom Cause, check, countermeasure
Trying to carry out
measurement on a newly
built residential building, but
the simplified measurement
(2-pole method) is not
allowed.
Measurement is not allowed if the electricity
has not been distributed from the power
company.
The measured value
becomes approx. 0
Ω
when
measuring with use of an
existing auxiliary earthing
electrode for measurement.
The earthing electrode and the auxiliary
electrode for measurement may have been
connected through concrete.
→ Drive an auxiliary earthing rod into the
ground and then carry out measurement
instead of using an auxiliary electrode
for measurement.
Small noise occurs inside
the instrument during
measurement.
It is the noise from the oscillator circuit
inside the instrument. It is not a failure.
The measured value is high. It has been set to 2-pole method.
→ Press the 3P/2P button to select 3-pole
method.
Measurement is not allowed
when trying to measure with
an earth net laid on asphalt.
Since asphalt is insulator, measurement is
not possible with an earth net.
Auxiliary earthing rod has
been bent.
It is recommended to purchase the L9840
Auxiliary Earthing Rod. (Commercially
available pegs have sharp tips, which may
damage the carrying case.)
HIOKI FT6031B961-00