Bosch LR 1 Professional User manual
Robert Bosch GmbH
Power Tools Division
70745 Leinfelden-Echterdingen
Germany
www.bosch-pt.com
2 610 A12 917 (2010.01) T / 379 XXX
LR Professional
1 | 1 G
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2 610 A12 917 | (19.1.10) Bosch Power Tools
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12
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LR 1/LR 1 G
Professional
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a
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d
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A
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Bosch Power Tools 2 610 A12 917 | (19.1.10)
en
Safety Notes
Read and observe all instructions. SAVE THESE IN-
STRUCTIONS FOR FUTURE REFERENCE.
Keep the measuring tool away from cardiac pace-
makers. The magnet plate 4generates a field that
can impair the function of cardiac pacemakers.
fKeep the measuring tool away from magnetic data medium
and magnetically-sensitive equipment. The effect of the mag-
net plate 4can lead to irreversible data loss.
fHave the measuring tool repaired only through qualified spe-
cialists using original spare parts. This ensures that the safety
of the measuring tool is maintained.
fDo not operate the measuring tool in explosive environments,
such as in the presence of flammable liquids, gases or dusts.
Sparks can be created in the measuring tool which may ignite
the dust or fumes.
fRead and strictly observe the safety warnings in the operating
instructions of the rotational laser.
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Functional Description
Please unfold the fold-out page with the representation of the
measuring tool and leave it unfolded while reading the operating
instructions.
Intended Use
The measuring tool is intended for swift finding of rotating laser
beams in the wavelength listed in the “Technical Data”.
The measuring tool is suitable for indoor and outdoor use.
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Bosch Power Tools 2 610 A12 917 | (19.1.10)
Product Features
The numbering of the product features shown refers to the illustra-
tion of the measuring tool on the graphic page.
1On/Off button
2Button for adjustment of the measuring accuracy
3Audio signal button
4Magnet plate
5Centre mark
6Reception area for the laser beam
7Display
8Laser receiver spirit level
9Latch of battery lid
10 Serial number
11 Battery lid
12 Retainer openings for holder
13 Locking screw for holder
14 Holder upper edge
15 Construction laser measuring rod*
16 Fastening screw of holder
17 Holder
* The accessories illustrated or described are not included as standard de-
livery.
Display Elements
aDirection indicator, down
b“Medium” adjustment indicator
cBattery indicator
dDirection indicator, up
eAudio signal indicator
fCentre indicator
g“Fine” adjustment indicator
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Technical Data
Laser Receiver LR 1
Professional
Article number 3 601 K15 400
Receivable wavelength 635–650 nm
Suitable for rotational laser level GRL 250 HV,
GRL 300 HV,
GRL 400 H
Please observe the article number on the type plate of your measuring tool.
The trade names of the individual measuring tools may vary.
The measuring tool can be clearly identified with the serial number 10 on the
type plate.
Laser Receiver LR 1 G
Professional
Article number 3 601 K69 700
Receivable wavelength 532–535 nm
Suitable for rotational laser level GRL 300 HVG
Please observe the article number on the type plate of your measuring tool.
The trade names of the individual measuring tools may vary.
The measuring tool can be clearly identified with the serial number 10 on the
type plate.
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Bosch Power Tools 2 610 A12 917 | (19.1.10)
LR 1/LR 1 G
Working range1) with rotational
laser level:
–GRL250HV
– GRL 300 HV/HVG
–GRL400H
125 m
150 m
200 m
Receiving angle 120°
Receivable rotation speed >200 min-1
Measuring accuracy2)
– “Fine” adjustment
– “Medium” adjustment
±1mm
±3mm
Operating temperature – 10 °C ... +50 °C
Storage temperature – 20 °C ... +70 °C
Battery 1x9V6LR61
Operating life time, approx. 50 h
Weight according to
EPTA-Procedure 01/2003 0.36 kg
Dimensions 148 x 73 x 30 mm
Degree of protection IP 65 (dust-proof and
protected against powerful
water jets)
1) The working range (radius) can be reduced due to unfavourable ambient
conditions (e.g. direct sunlight).
2) depends on clearance between laser receiver and rotational laser level
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Assembly
Inserting/Replacing the Battery
Alkali-manganese batteries are recommended for the measuring tool.
Press the latch 9of the battery lid outward and open the battery
lid 11.
When inserting the battery, pay attention to the correct polarity ac-
cording to the representation on the inside of the battery compart-
ment.
When the battery indication cappears for the first time on the dis-
play 7, the measuring tool can still be operated for approx. 3 h.
fIf the measuring tool is not used for a long period of time, the
battery must be removed. The battery can corrode or discharge
itself over long periods.
Operation
Initial Operation
fProtect the measuring tool against moisture and direct sun
light.
fDo not subject the measuring tool to extreme temperatures or
variations in temperature. As an example, do not leave it in ve-
hicles for longer periods. In case of large variations in tempera-
ture, allow the measuring tool to adjust to the ambient temper-
ature before putting it into operation. In case of extreme
temperatures or variations in temperature, the accuracy of the
measuring tool can be impaired.
Position the measuring tool at least 50 cm away from the rotational
laser level. Position the measuring tool in such a manner that the
laser beam can reach the reception area 6. Set the highest rotation-
al speed on the rotational laser level.
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Bosch Power Tools 2 610 A12 917 | (19.1.10)
Switching On and Off
fA loud audio signal sounds when switching on the measuring
tool. “The A-weighted sound pressure level of the audio signal
at a distance of one meter is 95 dB(A).”
fDo not hold the measuring tool close to your ear! The loud au-
dio signal can cause hearing defects.
To switch on the measuring tool, press the On/Off button 1. Two
audio signals sound and all display indicators light up briefly.
To switch off the measuring tool, press the On/Off button 1again.
When no button is pressed on the measuring tool for approx.
10 minutes and when no laser beam reaches the reception area 6
for 10 minutes, the measuring tool automatically switches off in or-
der to save the battery. The switching off is indicated by an audio
signal.
Selecting the Setting of the Centre Indicator
With button 2, you can specify with which accuracy the position of
the laser beam is indicated as central on the reception area:
– “Fine” adjustment, (indication gon the display),
– “Medium” adjustment, (indication bon the display).
An audio signal sounds when the accuracy setting is changed.
Whenever switching on the measuring tool, the accuracy level “me-
dium” is set.
OBJ_BUCH-780-003.book Page 25 Tuesday, January 19, 2010 10:56 AM
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