Bosch LR 7 Professional Manual Original página 19

English | 19
Measuring tool too low: If the laser beam runs through the upper half of the reception
area (5), then the direction indicator (d) on the display and the corresponding LED (11)
will light up.
If the audio signal is switched on, a signal sounds at a high frequency.
Move the measuring tool upwards in the direction of the arrow.
Measuring tool too high: If the laser beam runs through the lower half of the reception
area (5), then the direction indicator (b) on the display and the corresponding LED (9)
will light up.
If the audio signal is switched on, a signal sounds at a low frequency.
Move the measuring tool downwards in the direction of the arrow.
Measuring tool centred: If the laser beam runs through the reception area (5) at the
height of the centre mark (10), then the centre indicator (c) and the corresponding
centre LED (16) 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.
After switching on the measuring tool, the audio signal is always set to medium volume.
You can increase the volume or switch off the audio signal.
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
signal indicator (g) appears on the display with one bar; at a high volume, the indicator
appears with three bars. When the audio signal is switched off, the indicator goes out.
No matter how the signal tone has been adjusted, a brief, low-volume sound is emitted
for confirmation every time a button on the measuring tool is pressed.
Backlighting
The backlighting of the display is switched on at full strength when the measuring tool is
switched on. If no laser beam is detected and there is no operator input for 2 min, the
backlighting is reduced by 50 %.
You can switch the backlighting off. To do so, press and hold the button for adjusting the
measuring accuracy (2) and the audio signal button (4) at the same time for at least 2 s.
Bosch Power Tools 1 609 92A 4CS | (25.05.2018)