Bosch GCL100-40G, Operating/Safety Instructions Manual

Page: 13 / 48

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Automatic shut-off
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 (4) 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 deactivated, the laser beams will
flash briefly as confirmation.
Note: If the operating temperature exceeds
45 °C, automatic shut-off can no longer be
deactivated.
To activate the automatic shut-off function,
switch the measuring tool off and on again.
Operating Modes
The measuring tool has four operating
modes, which you can toggle through with
the laser mode button (3):
– Cross-line and point mode (see figure A):
The measuring tool generates a horizontal
and a vertical laser line facing forwards
as well as two vertical laser points – one
facing up, the other down.
– Horizontal operation (see figure B): The
measuring tool generates a horizontal
laser line.
– Vertical operation (see figure C): The
measuring tool generates a vertical laser
line. If the measuring tool is positioned
in the room, the vertical laser line is
displayed on the ceiling beyond the upper
laser point.
– Point mode (see figure D): The measuring
tool generates two vertical laser points –
one facing up, the other down.
To change the operating mode, press the
button for laser operating mode (3) as
often as required until the laser beams are
generated in the required operating mode.
All operating modes apart from point mode
can be used with both automatic leveling
and the incline function.
All operating modes are suitable for
operation with the laser receiver (19).
Automatic Leveling
The measuring tool monitors the position
at all times during operation. It works with
automatic leveling during set-up within
the self-leveling range of ±4°. Outside of
the self-leveling range, it will automatically
switch to the incline function.
Working with automatic leveling
(see figures A–D)
Position the measuring tool on a level, firm
surface or attach it to the rotating mount
(11) or the tripod (21).
T h e a u t o m a t i c l e v e l i n g f u n c t i o n
automatically compensates irregularities
within the self-leveling range of ±4°. Once
the laser beam is permanently lit, the
measuring tool has leveled in.
If automatic leveling 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 flash rapidly for 2 seconds,
then flash rapidly every 5 seconds. The
measuring tool is in the incline function.
In case of ground vibrations or position
changes during operation, the measuring
tool is automatically leveled again. Upon
leveling, check the position of the laser
beams with regard to the reference points
to avoid errors arising from a change in the
measuring tool’s position.
Working with the Incline Function
(see figure E)
Place the measuring tool on an inclined
surface. When working with the incline
function, the laser lines will initially flash
rapidly for 2 seconds, then flash rapidly
every 5 seconds.
In the incline function, the laser lines are
no longer leveled and no longer necessarily
run perpendicular to one another. The laser
points are switched off, point operation is
no longer available.