Automatic Levelling - Bosch Professional GLL 2 Notice Originale

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Automatic Levelling

Working with automatic levelling (see figures A–C)
Position the measuring tool on a level, firm surface or attach it to the
holder (9) or the tripod (14).
To work with automatic levelling, push the pendulum lock switch (5) to the
position. The status indicator (2) lights up green (symbol /green).
The automatic levelling function automatically compensates irregularities
within the self-levelling range of ±4°. The levelling is finished as soon as the
laser lines stop moving.
If automatic levelling is not possible, e.g. because the surface on which the
measuring tool is standing deviates by more than 4° from the horizontal
plane, the automatic status indicator (2) lights up red and the laser lines
flash.
If this is the case, set up the measuring tool in a level position and wait for
the self-levelling to take place. As soon as the measuring tool is back within
the self-levelling range of ±4°, the laser lines will light up continuously and
the status indicator (2) will light up green.
It is not possible to work with automatic levelling outside the self-levelling
range of ±4°, as the levelling accuracy of the laser beams cannot be guaran-
teed and it cannot be guaranteed that the laser beams are perpendicular.
In case of ground vibrations or position changes during operation, the meas-
uring tool is automatically levelled again. Upon re-levelling, check the posi-
tion of the horizontal or vertical laser line with regard to the reference points
to avoid errors by moving the measuring tool.
Working with a pendulum lock (see figure D)
To work with a pendulum lock, push the pendulum lock switch (5) to the
position. The status indicator (2) lights up red (symbol /red).
For work with the pendulum lock, the automatic levelling is switched off. You
can hold the measuring tool freely in your hand or place it on a sloping sur-
face. This means that the laser lines are no longer levelled and no longer ne-
cessarily run perpendicular to one another.
1 609 92A 58R | (04.03.2020) Bosch Power Tools