User Documentation

-55-
No.PF※※-OMP0002-H
●Key lock
The key lock function is used to prevent errors occurring due to unintentional changes of the set values.
Valid operations when keys are locked
When the button is pressed, the display will scroll through in the order of [LoC], [Set value] and [LoC].
And then return to measurement mode.
Press the button for 1 second or longer to display [LoC] for 1 second.
<Operation-Without security code input->
Locking
1. Press and hold the button for 5 seconds or longer in measurement mode. [UnL] is displayed.

: Keep pressing the button even when [F 0] is displayed.
2. Press the or button to select keys lock [LoC].
3. Press the button to lock the keys and return to measurement mode.
Unlocking
1. Press and hold the button for 5 seconds or longer in measurement mode. [LoC] is displayed.
2. Press the or button to select keys unlock [UnL].
3. Press the button to unlock the keys and return to measurement mode.