Bosch GLL 18V-120-33 CG Professional Manual Original página 43

English | 43
The measuring tool is protected against electrostatic discharge (ESD). If the measuring
tool becomes electrostatically charged (e.g. when it is touched in an environment with
low humidity), it switches itself off automatically. In such cases, switch the on/off
switch (10) off and on again.
Deactivating the Automatic Shut-Off Function
If no button on the measuring tool is pressed for approx. 120 min, the measuring tool will
automatically switch itself off to preserve battery life.
To switch the measuring tool back on after it has been automatically switched off, you
can either slide the on/off switch (10) to the "OFF" position first and then switch the
measuring tool back on, or press the laser operating mode button (3).
To deactivate the automatic shut-off function, hold down the laser mode button (3) for at
least 3 s (with the measuring tool switched on). If the automatic shut-off function is deac-
tivated, the laser beams will flash briefly as confirmation.
To activate the automatic shut-off function, switch the measuring tool off and on again.
Operating Modes
The measuring tool can generate one horizontal and two vertical laser lines.
Once the measuring tool is switched on, the horizontal laser line is switched on.
You can switch each of the laser lines on and off independently of one another. To do
this, press the laser operating mode button (3) that corresponds to the relevant laser
line. When the laser line is switched on, the corresponding laser operating mode
button (3) lights up.
All operating modes are suitable for operation with the laser receiver (26).
Automatic Levelling
The measuring tool monitors the position at all times during operation. It works with
automatic levelling during set-up within the self-levelling range of ±4°. Outside of the
self-levelling range, it will automatically switch to the incline function.
Working with Automatic Levelling
Position the measuring tool on a level, firm support or attach it to a tripod (29).
The automatic levelling function automatically compensates irregularities within the self-
levelling range of ±4°. Once the laser beam is permanently lit, the measuring tool has lev-
elled in.
If automatic levelling is not possible, e.g. because the surface on which the measuring
tool stands deviates by more than 4° from the horizontal plane, the laser lines will initially
Bosch Power Tools 1 609 92A 8JB | (08.12.2023)