Hioki IR4053, Instruction Manual, Page: 36 / 88

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Auto Power Save (Power-Saving Function)
3.2 Auto Power Save (Power-Saving
Function)
When the rotary switch is not in the OFF position, the instrument changes to
the auto power save state approx. 10 minutes after the last operation or live
wire warning indication.
To avoid battery depletion, turn off the rotary switch after use (the auto power
save consumes a small amount of current).
Canceling the auto power save
Other than
the OFF
position .
Turn on the instrument while
holding down .
Recovering from auto power save state
Set the rotary switch to OFF and then return it to its original
position.
3.3 Auto Backlight-off (Automatic
Light-off Function)
The backlight of the instrument will automatically turn off after approx.
3 minutes has passed since the last operation.
The automatic light-off function can be canceled when working continuously
in a dark location.
Canceling the automatic light-off function
Continuous
short beep
Press for approx. 2 seconds.
Backlight: OFF Set the rotary switch to any
position other than OFF.
With the backlight off, press
for approx. 2 seconds until the
instrument beeps.
The automatic light-off function is enabled by
setting the rotary switch to OFF.
HIOKI IR4057B961-00