Speeding Up Centre Line Mode; Relative Height Display (See Figure F); Working With The Laser Receiver; Rf Communication Between Measuring Tool And Remote Control/Laser Receivers - Bosch GRL Professional 500 H Originalbetriebsanleitung

The speed at which the rotation head moves will slow down as
soon as the laser beam hits the reception area 26.
When the centre line has been found, the measuring tool au-
tomatically switches off the centre line mode.
– To cancel centre line mode during the search,
press the centre line mode button 19.
or
– Simultaneously press the slope buttons 18 and
20 to activate automatic levelling.

Speeding Up Centre Line Mode

Searching for the centre line always begins with a right-hand
movement of the rotation head. The direction of the move-
ment can be changed if the position of the laser receiver to the
left of the centre line is known and the laser beam is not yet in
the reception area.
– Press the centre line mode button 19 for approx.
2 s.
The rotation head is automatically moved to the
right.
– Press the slope button 18.
The rotation head is moved to the left.

Relative Height Display (see figure F)

The distance between the rotational plane
and the centre line is shown on the display
as an absolute value (in [mm] or [inch]).
See also "Setting the Display of the Units",
page 44.

Working with the Laser Receiver

For outdoor use or longer distances indoors, use the laser re-
ceiver to find the laser beam.
– Place the laser receiver so that the laser beam can reach
the reception area 26.
RF Communication between Measuring Tool and Remote
Control/Laser Receivers
If a wireless connection is established between measuring
tool and laser receiver, the laser receiver acts as a remote
control.
All other laser receivers can only receive the laser beam.
– Switch off the measuring tool and the laser receiver.
– Dock the laser receiver in the charging/storage station 6.
– Press the On/Off button 17.
– The RF communication indicator 33 is displayed
to indicate the remote control function on the la-
ser receiver.
Bosch Power Tools
Settings such as measuring accuracy or audio signal can be
set individually for each laser receiver.
If the remote control/laser receiver is switched off, the meas-
uring tool switches off. All other laser receivers each have to
switch off separately.
If the RF communication is lost, the RF communica-
tion indicator 33 flashes and an audio signal
sounds.
This signals that warnings (e.g. theft, anti-drift, cal-
ibration) will not be shown and the measuring tool
will no longer be remote-controlled.
Note: Sleep mode of the measuring tool can be deactivated
only by pressing the sleep mode button 21 on the remote con-
trol/laser receiver.

Setting the Audio Signal/Volume

The position of the laser beam on the reception area 26 can
be indicated via an audio signal.
You can choose between two volumes or switch off the audio
signal.
The default setting in the delivery condition is
[Normal audio signal].
– Press the audio signal/volume button 24 repeat-
edly until the desired setting is reached.
No indicator: audio signal off
Normal audio signal
Loud audio signal
The setting for audio signal/volume is saved when the tool is
switched off.

Selecting the Setting of the Centre Line Indicator

You can specify the accuracy with which the position of the la-
ser beam is indicated as "centred" on the reception area.
The default setting in the delivery condition is
[Measuring accuracy "medium/3 mm"].
– Press the measuring accuracy setting
button 23 repeatedly until the desired
setting is reached.
Example The measuring accuracy level "fine"/"me-
dium"/"coarse" and the exact value are
shown on the display.
The setting for measuring accuracy is saved when the tool is
switched off.

Direction Indicators

The position of the laser beam in the reception area 26 is indi-
cated:
– on the display 15 on the front and rear side of the laser re-
ceiver by the direction indicator "move upward" 39, the di-
rection indicator "move downward" 40 or the centre line
indicator 43,
– optionally by the audio signal.
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