Hioki FT3151 - Measuring Earth Resistance Simply (Simplified Measurement, 2-Pole Measurement Method)

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Measuring Earth Resistance Simply
(Simplied Measurement, 2-Pole Measurement Method)
2.3 Measuring Earth Resistance Simply
(Simplied Measurement, 2-Pole
Measurement Method)
DANGER
When using the grounded side of a commercial power
supply for simplied measurement, check the outlet
rst, to determine the grounded side. Use a suitable
checker (electroscope or similar) for this purpose.
Take proper precautions against electric shock. If the
FT3151 is connected by mistake to the live part of a
power supply and a voltage of 85 V or more is applied
to the input, a warning tone (beep) will sound. In this
case, immediately disconnect the leads and check the
outlet again.
This instrument can output a voltage of approximately
50 V. Dry the instrument before using it for
measurement so as to avoid an electric shock.
WARNING
Connect terminal E rst. The warning will not sound
if the earthing body is not connected to terminal
E. When the connection is made by mistake on the
power line with the leakage current circuit breaker
installed, the breaker may be tripped before the beep
sounds.
This instrument can be connected only to the neutral
side of an outlet with a voltage-to-ground of 300 V or
less. Do not connect with anything other than those
specied above. It can be hazardous.
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Appx. Ind.