Bosch LR 7 Professional Manual Original página 18

18 | English
switch itself off to preserve battery life. The switching off is indicated by all LEDs and all
display indicators lighting up briefly, and an audio signal sounds.
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:
– Reception accuracy "fine" (indicator (f) on the display),
– Reception accuracy "coarse" (indicator (e) on the display).
Direction Indicators
The position of the laser beam in the reception area (5) is indicated as follows:
– By the direction "Laser beam below centre line" (b), "Laser beam above centre
line" (d) or centre line indicator (c) on the display (6) on the front of the laser re-
ceiver,
– By the direction LEDs "Laser beam below centre line" (9), "Laser beam above centre
line" (11) or centre line indicator (15) on the back of the laser receiver,
– By an audio signal (optional) (see "Laser Beam Indicator Audio Signal", page 18).
Laser receiver too low: If the laser beam runs through the upper half of the reception
area (5), then the direction indicator "Laser beam above centre line" (d) on the display
and the corresponding LED "Laser beam above centre line" (11) will light up.
If the audio signal is switched on, a signal sounds at a high frequency.
Move the laser receiver upwards in the direction of the arrow.
Laser receiver too high: If the laser beam runs through the lower half of the reception
area (5), then the direction indicator "Laser beam below centre line" (b) on the display
and the corresponding LED "Laser beam below centre line" (9) will light up.
If the audio signal is switched on, a signal sounds at a low frequency.
Move the laser receiver downwards in the direction of the arrow.
Laser receiver centred: If the laser beam runs through the reception area (5) at the
height of the centre mark (10), then the centre line indicator (c) on the display and the
corresponding centre line LED (15) will light up.
If the audio signal is switched on, a continuous tone sounds.
Laser Beam Indicator Audio Signal
The position of the laser beam on the reception area (5) can also be indicated by an au-
dio signal.
The volume level can be changed or the audio signal switched off.
To change the volume level or switch off the audio signal, push the audio signal button
(4) until the required volume level is indicated on the display. At a low volume, the audio
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