Bosch GLL 50 Operating/Safety Instructions Manual page 19

Deactivating the Automatic Shut-off:
– To deactivate automatic shut-off, hold down button 6 for at least
3 s with the measuring tool switched on. When automatic shut-off is
deactivated, the laser lines will flash briefly as confirmation.
Note: When the operating temperature exceeds 113° F (+ 45° C), the
automatic shut-off can no longer be deactivated.
Activating the Automatic Shut-off:
– To activate the automatic shut-off, switch the measuring tool off and
then on again.
Setting the Operating Mode (see figures B1–F1)
The measuring tool has several operating modes between which you
can switch at any time:
– Cross-line operation: The measuring tool generates a horizontal
and a vertical laser line facing frontward.
The laser lines cross at a 90° angle.
– Horizontal line operation: The measuring tool generates a horizontal
laser line facing frontward.
– Vertical line operation: The measuring tool generates a vertical laser
line facing frontward.
When the measuring tool is positioned in the room, the vertical laser
line is displayed on the ceiling beyond the upper laser point.
When the measuring tool is positioned directly against a wall, the
vertical laser line generates an almost completely allround laser line
(360° line).
All modes can be selected both with and without automatic leveling.
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