Bosch LR Professional 1 Originalbetriebsanleitung Seite 19

Selecting the setting of the centre line indicator
You can use the button adjusting the reception accuracy (2) to specify the accuracy with
which the position of the laser beam is indicated as "centred" on the reception area:
– Measuring accuracy "fine" (indicator (g) on the display),
– Measuring accuracy "medium" (indicator (b) on the display).
An audio signal sounds every time the accuracy setting is changed.
Direction indicators
The position of the laser beam in the reception area (6) is indicated as follows:
– On the display (7) on the front and rear of the laser receiver by means of the "laser
beam below centre line" direction indicator (d), the "laser beam above centre line"
direction indicator (a) and the centre line indicator (f),
– By an audio signal (optional) (see "Laser Beam Indicator Audio Signal", page 19).
Laser receiver too low: If the laser beam hits the upper half of the reception area (6),
then the "laser beam above centre line" direction indicator (a) appears in the display.
If the audio signal is switched on, a slow-beat signal sounds.
Move the laser receiver upwards in the direction of the arrow. When the laser beam is
close to the centre line, only the tip of the "laser beam above centre line" direction
indicator (a) is shown.
Laser receiver too high: If the laser beam hits the lower half of the reception area (6),
then the "laser beam below centre line" direction indicator (d) appears in the display.
If the audio signal is switched on, a fast-beat signal sounds.
Move the laser receiver downwards in the direction of the arrow. When the laser beam is
close to the centre line, only the tip of the "laser beam below centre line" direction
indicator (d) is shown.
Laser receiver centred: If the laser beam hits the reception area (6) at the height of the
centre mark (5), then the centre line indicator (f) appears in the display.
If the audio signal is switched on, a continuous signal sounds.
Laser Beam Indicator Audio Signal
The position of the laser beam on the reception area (6) can also be indicated by an au-
dio signal.
You can select two different volumes for the audio signal.
To switch on the audio signal or change the volume level, push the audio signal
button (3) until the required volume level is indicated on the display. At medium volume,
the audio signal indicator (e) flashes on the display; at high volume, the indicator is con-
tinuously lit. When the audio signal is switched off, the indicator goes out.
Bosch Power Tools
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1 609 92A 5S4 | (10.08.2020)