Hioki IR4053, Instruction Manual, Page: 41 / 88

35
Insulation Resistance Measurement
Lock Function
This function is used to avoid applying high voltage such as 500 V
or 1000 V to equipment having a lower withstanding voltage. This
function will prevent the test voltage from being output even if the
MEASURE key is pressed while the rotary switch is set to the 500 V,
1000 V or PV
Ω
range.
Releasing the lock
Turns on
Blinks
1
or
1
Set the rotary switch to the
500 V, 1000 V or PV
Ω
range.
Turns off
2
Turns off
or
2
Press .
Pressing this key unlocks the
instrument and switches to the
measurement screen.
The screen is locked 1 minute after the last measurement or operation
again.
1
2
4
5
6
7
付録
索引
3
HIOKI IR4057B961-00