Hioki 3151 - 1.3 Names and Functions of Parts

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Chapter 1 Outline
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Front View
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1.3 Names and Functions of Parts
① Measurement button (
PRESS ON
)
Press this button for earthing resistance
measurement, auxiliary earthing resistance
check, and battery check.
② Range selector
Serves to switch the instrument to battery
check, earth voltage measurement, auxiliary
earthing resistance check, and earthing
resistance measurement.
③ 2/3 pole measurement selector (
TERMINALS
)
Serves to switch between 2-pole measurement
(simplified measurement) and 3-pole
measurement. Also serves to switch the
measurement frequency (a/b) to reduce the
influence of harmonic earth voltage.