-31-
No.PF※※-OMO0012-D
Key-lock function
This function is used to prevent errors occurring due to unintentional changes of the Set values.
<Operation - How to lock>
1. Press the button for 3 seconds or longer in measurement mode. The display will change from
[F_] to [d_] to [unL]. When [unL] is displayed, release the
button.
2. Press the button to select [Loc], to lock the keys.
3. Key operation is locked by pressing the button, and returns to measurement mode.
: Even when keys are locked, while the button is pressed, instantaneous flow and accumulated flow can be displayed in
turn.
<Operation - How to unlock>
1. Press the button for 3 seconds or longer in measurement mode.
2. Press the button to select [unL], to unlock the keys.
3. Key operation is unlocked by pressing the button, and returns to measurement mode.