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10.1.3 Electronic lock
The unit can be locked electronically to prevent unauthorised setting� On delivery
the unit is not locked�
Locking
►
Make sure that the unit is in the normal
operating mode�
►
Keep [MODE/ENTER] + [SET] pressed
until [Loc] is displayed�
> The unit is locked�
[Loc] is displayed briefly if you try to change parameter values on the locked unit during
operation�
Unlocking
►
Keep [MODE/ENTER] + [SET] ] pressed
until [uLoc] is displayed�
> The unit is unlocked�
Timeout
If no button is pressed for 15 s during the setting procedure, the unit changes to the
Run mode with unchanged values�
10.2 Entering the reference level (unit on delivery)
On delivery the unit is not operational� The reference level has to be set first� The
complete parameter setting menu cannot be accessed before this has been done�
There are three different ways to define the reference level�
10.2.1 Free choice of the tank height
If the height of the tank (distance between the front lens of the O1D to the tank
bottom) is known, it can be entered without the unit being mounted� The distance
entered is used as reference level�
1
►
Apply operating voltage�
> Initial display is shown�
