Starting Operation Of The Laser Receiver - Bosch Professional GRL 150 HV Manual Original

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OBJ_BUCH-757-004.book Page 32 Wednesday, December 10, 2008 4:25 PM
32 | English

Starting Operation of the Laser Receiver

Protect the laser receiver against moisture.
Do not subject the laser receiver to extreme
temperatures or variations in temperature.
As an example, do not leave it in vehicles for
longer periods. In case of large variations in
temperature, allow the laser receiver to adjust
to the ambient temperature before putting it
into operation. In case of extreme tempera-
tures or variations in temperature, the accura-
cy of the laser receiver can be impaired.
Position the laser receiver at least 50 cm away
from the rotational laser level. Position the laser
receiver in such a manner that the laser beam
can reach the reception area 31. Set the highest
rotational speed on the rotational laser level.
Switching On and Off
A loud audio signal sounds when switching
on the measuring tool. Therefore, keep the
laser receiver away from your ear or other
persons when switching on. The loud audio
signal can cause hearing defects.
To switch on the laser receiver, press the On/
Off button 26. Two audio signals sound and all
display indicators light up briefly.
To switch off the laser receiver, press the
On/Off button 26 again.
When no button is pressed on the laser receiver
for approx. 10 minutes and when no laser beam
reaches the reception area 31 for 10 minutes,
the laser receiver automatically switches off in
order to save the battery. The switching off is
indicated by an audio signal.
Selecting the Setting of the Centre Indicator
With button 27, you can specify with which ac-
curacy the position of the laser beam is indicat-
ed as central on the reception area:
– "Fine" adjustment, (indication f on the dis-
play),
– "Medium" adjustment, (indication a on the
display).
An audio signal sounds when the accuracy set-
ting is changed.
Whenever switching on the laser receiver, the
accuracy level "medium" is set.
1 609 929 R48 | (10.12.08)
Direction Indicators
The bottom g, centre e and top c indicators
(both on the front and rear side of the laser re-
ceiver) indicate the position of the rotating laser
beam in the reception area 31. Additionally, the
position can be indicated with an audio signal
(see "Audio Signal for Indication of the Laser
Beam", page 32).
Laser receiver too low: When the laser beam
runs through the top half of the reception area
31, the bottom direction indicator g appears on
the display.
When the audio signal is switched on, a slow-
beat signal sounds.
Move the laser receiver upward in the direction
of the arrow. When approaching the centre
mark 30, only the tip of the direction indicator g
is indicated.
Laser receiver too high: When the laser beam
runs through the bottom half of the reception
area 31, the top direction indicator c appears on
the display.
When the audio signal is switched on, a fast-
beat signal sounds.
Move the laser receiver downward in the direc-
tion of the arrow. When approaching the centre
mark 30, only the tip of the direction indicator c
is indicated.
Laser receiver in centre position: When the la-
ser beam runs through the reception area 31 at
the centre mark 30, the centre indicator e lights
up. When the audio signal is switched on, a con-
tinuous signal sounds.
Audio Signal for Indication of the Laser Beam
The position of the laser beam on the reception
area 31 can be indicated via an audio signal.
After the laser receiver has been switched on,
the audio signal is always switched off.
When switching on the audio signal, you can
choose between two volume levels.
To switch on the audio signal or change the vol-
ume level, push the acoustic signal button 28
until the requested volume level is indicated. At
medium volume level, the audio signal indicator
d in the display flashes; at high volume level, the
indicator is continuously lit. When the audio sig-
nal is set to off, the indicator goes out.
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