Automatic Levelling; Accuracy Check Of The Measuring Tool - Bosch Professional Rc Originalbetriebsanleitung

Automatic Levelling

Overview
The measuring tool will automatically detect the horizontal or
vertical position. To change between the horizontal and
the vertical position, switch the measuring tool off, reposi-
tion it and switch it on again.
After switching on, the measuring tool checks the horizontal
and vertical position and automatically levels out any un-
evenness within the self-levelling range of approx. ±8 %
(±4.6°).
During levelling, the status indicator (3) flashes green, the
laser does not rotate and flashes.
The measuring tool is levelled in as soon as the status
indicator (3) lights up green continuously and the laser lights
up continuously. After levelling is completed, the measuring
tool automatically starts in rotational operation.
When the measuring tool is out-of-level by more than 8 %
after switching it on or after a position change, levelling in is
no longer possible. In this case, the rotor is stopped, the
laser flashes and the status indicator (3) continuously lights
up red.
Reposition the measuring tool and wait for it to re-level.
Without repositioning, the laser is automatically switched off
after 2 minutes and the measuring tool after 2 hours.
When the measuring tool is levelled in, it continuously
checks the horizontal and vertical position. Re-levelling is
automatically performed if there are any position changes.
To avoid faulty measurements, the rotor stops during the
levelling process, the laser flashes and the status
indicator (3) flashes green.
Shock-Warning Function
The measuring tool has a shock-warning function. After posi-
tion changes or shock to the measuring tool, or in case of
ground vibrations, it keeps the measuring tool from levelling
in at changed positions, and thus prevents errors caused by
a change in the measuring tool's position.
Switching on/activating the shock-warning function:
Press the shock-warning button (2). The shock-warning
indicator (1) lights up green continuously. The shock warn-
ing is activated approximately 30 seconds after the shock-
warning function has been switched on.
Shock warning actuated: If the levelling-accuracy range is
exceeded when changing the position of the measuring tool
or a severe knock is registered, the shock warning will be ac-
tuated. The laser will stop rotating, the laser beam will flash,
the status indicator (3) will go out and the shock-warning
indicator (1) will flash red.
The current operating mode is stored.
After the shock warning has actuated, press the shock-warn-
ing button (2) on the measuring tool or the shock-warning
reset button (22) on the remote control. The shock-warning
function is restarted and the measuring tool starts the level-
ling. As soon as the measuring tool is levelled in (levelling
indicator (3) continuously lights up green), it starts in the
stored operating mode.
Bosch Power Tools
Now check the position of the laser beam at a reference
point and, if necessary, correct the height or alignment of
the measuring tool.
When, after the shock-warning function has actuated, the
function is not restarted by pressing the shock-warning
button (2) on the measuring tool or the shock-warning reset
button (22) on the remote control, the laser is automatically
switched off after 2 minutes and the measuring tool after
2 hours.
Switching off the shock-warning function: Press the
shock-warning button (2) once or, when the shock warning
has actuated (shock-warning indicator (1) flashing red),
press it twice. When the shock-warning function is switched
off, the shock-warning indicator goes out.
Note: The shock-warning function cannot be switched on or
off with the remote control; it can only be restarted after
having actuated.

Accuracy Check of the Measuring Tool

Influences on Accuracy
The largest influence is exerted by the ambient temperature.
In particular, temperature differences that occur from the
ground upwards can refract the laser beam.
In order to minimise thermal influences resulting from heat
rising from the floor, it is recommended that you use the
measuring tool on a tripod. In addition, position the measur-
ing tool in the centre of the work surface, wherever this is
possible.
In addition to external influences, device-specific influences
(e.g. falls or heavy impacts) can also lead to deviations. For
this reason, check the levelling accuracy each time before
beginning work.
Should the measuring tool exceed the maximum deviation
during one of the tests, please have it repaired by a Bosch
after-sales service.
Checking the Levelling Accuracy in a Horizontal Position
For a reliable and precise result, it is recommended that you
check the levelling accuracy on a free measuring distance
of 30 m on firm ground in front of a wall. Carry out a com-
plete measuring procedure for each of the two axes.
– Mount the measuring tool in a horizontal position 30 m
from the wall on a tripod, or place it on a firm, level sur-
face. Switch on the measuring tool.
30 m
– Once levelling is complete, mark the centre of the laser
beam on the wall (point Ⅰ).
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1 609 92A 8LJ | (07.06.2023)