Hioki IR4057-50 - Negative Voltage Notification Function (IR4053 and IR4055 Only)

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Voltage Measurement
Negative Voltage Notication Function (IR4053 and
IR4055 only)
This function is only available on the IR4053 and the IR4055.
You can check whether P and N are connected in reverse while
measuring the open voltage of solar battery string.
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1
Set the rotary switch to V
while pressing
.
The [‒] and [V] blinks and [ON] or
[OFF] is displayed.
2
Press to switch between ON and OFF.
ON
(Factory setting)
When the voltage is −1 V or lower, red and white
of the backlight blinks alternately.
OFF Disabled
If there is no operation for approx. 2 seconds after ON or OFF
is selected, the setting is conrmed, and the screen changes to
measurement screen.
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付録索引
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HIOKI IR4057B961-00