BOSCH LR Professional Laser Receiver Instruction Manual

: June 3, 2024
: Bosch

Table of Contents

BOSCH LR Professional Laser Receiver
Safety Notes
Product Description and Specifications
Technical Data
Assembly
Operation
Working Advice
Maintenance and Service
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOSCH LR Professional Laser Receiver

Safety Notes

Read and observe all instructions. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Keep the measuring tool away from cardiac pacemakers. Magnet plate 4 generates a field that can impair the function of cardiac pacemakers.

Keep the measuring tool away from magnetic data medium and magnetically sensitive equipment. The effect of magnet plate 4 can lead to irreversible data loss.
Have the measuring tool repaired only through qualified specialists using original spare parts. This ensures that the safety of the measuring tool is maintained.
Do not operate the measuring tool in explosive environments, such as in the presence of flammable liquids, gases or dust. Sparks can be created in the measuring tool which may ignite the dust or fumes.
Read and strictly observe the safety warnings in the operating instructions of the rotational laser.

Product Description and Specifications

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.
Product Features
The numbering of the product features shown refers to the illustration of the measuring tool on the graphic page.

BOSCH-LR-Professional-Laser-Receiver-FIG1

On/Off button
Button for selecting the measuring accuracy
Audio signal button
Magnet plate
Centre mark
Reception area for the laser beam
Display
Laser receiver spirit level
The latch of the battery lid
Serial number
Battery lid
Retainer openings for the holder
Locking screw for holder
Holder upper edge
Construction laser measuring rod*
Fastening screw of holder
Holder

The accessories illustrated or described are not included as standard delivery.

Display Elements

Direction indicator, down
Indicator for measuring accuracy “Medium”
Battery low indicator
Direction indicator, up
Audio signal indicator
Centre indicator
Indicator for measuring accuracy “Fine”

Technical Data

BOSCH-LR-Professional-Laser-Receiver-FIG4

The working range (radius) can be reduced due to unfavourable ambient conditions (e.g. direct sunlight).
depends on clearance between laser receiver and rotational laser level
dependent on laser class and laser type of the rotational laser level
The measuring accuracy can be impacted by unfavourable environmental conditions (e.g. direct sun irradiation).

The measuring tool can be clearly identified with the serial number 10 on the type plate. BOSCH-LR-Professional-Laser-Receiver-FIG5

The working range (radius) can be reduced due to unfavourable ambient conditions (e.g. direct sunlight).
depends on clearance between laser receiver and rotational laser level
dependent on laser class and laser type of the rotational laser level
The measuring accuracy can be impacted by unfavourable environmental conditions (e.g. direct sun irradiation).

The measuring tool can be clearly identified with serial number 10 on the type plate.

Assembly

Inserting/Replacing the Battery
Alkali-manganese batteries are recommended for the measuring tool.

Press the latch 9 of the battery lid outward and open the battery lid 11.

When inserting the battery, pay attention to the correct polarity according to the representation on the inside of the battery compartment. When the battery low indicator c appears for the first time on display 7, the measuring tool can still be operated for approx. 3 h.

If 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

Protect the measuring tool against moisture and direct sunlight.
Do not subject the measuring tool to extreme temperatures or variations in temperature. As an example, do not leave it in vehicles for a long time. In case of large variations in temperature, allow the measuring tool to adjust to the ambient temperature 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 rotational speed on the rotational laser level.

Switching On and Off

A loud audio signal sounds when switching on the measuring tool. “At a distance of 0.2 m, the A-weighted sound pressure level of the audio signal can be up to 95 dB(A).”
Do not hold the measuring tool close to your ear! The loud audio signal can cause hearing defects.

To save energy, only switch the measuring tool on when you are using it.

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 1 again.

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 order 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 g on the display),
“Medium” adjustment, (indication b on the display).

An audio signal sounds when the accuracy setting is changed. Whenever switching on the measuring tool, the accuracy level “medium” is set.

Direction Indicators
The bottom a, centre f and top d indicators (both on the front and rear side of the measuring tool) indicate the position of the rotating laser beam in the reception area 6. Additionally, the position can be indicated with an audio signal (see “Audio Signal for Indication of the Laser Beam”, page 18).
Measuring tool too low: When the laser beam runs through the top half of the reception area 6, the bottom direction indicator a appears on the display. When the audio signal is switched on, a slow-beat signal sounds. Move the measuring tool upward in the direction of the arrow. When approaching the centre mark 5, only the tip of the direction indicator a is indicated.
Measuring tool too high: When the laser beam runs through the bottom half of the reception area 6, the top direction indicator d appears on the display. When the audio signal is switched on, a fast-beat signal sounds. Move the measuring tool downward in the direction of the arrow. When approaching the centre mark 5, only the tip of the direction indicator d is indicated.
Measuring tool in centre position: When the laser beam runs through the reception area 6 at the centre mark 5, the centre indicator f lights up. When the audio signal is switched on, a continuous signal sounds.
Audio Signal for Indication of the Laser Beam
The position of the laser beam on reception area 6 can be indicated via an audio signal. After the measuring tool 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 volume level, push the acoustic signal button 3 until the requested volume level is indicated. At medium volume level, the audio signal indicator e in the display flashes; at high volume level, the indicator is continuously lit. When the audio signal is set to off, the indicator goes out.

Working Advice

Marking
When the laser beam runs through the centre of reception area 6, its height can be marked at the centre mark 5 right and left on the measuring tool. The centre mark is located 45 mm away from the top edge of the measuring tool.
Aligning with the Spirit Level
The measuring tool can be aligned vertically (plumb line) with the spirit level 8. A measuring tool applied out-of-level leads to faulty measurements.

Attaching with the Holder (see figure A )
With the holder 17, the measuring tool can be fastened to a construction laser measuring rod 15 (accessory) as well as to other auxiliary tools with a width of up to 65 mm.

Screw the holder 17 to the retainer opening 12 on the rear side of the measuring tool with fastening screw 16.
Loosen the locking screw 13, slide the holder onto the construction laser measuring rod 15, for example, and retighten the locking screw 13.

The upper edge 14 of the holder is located at the same height as the centre mark 5 and can be used for marking of the laser beam.

Attaching with the Magnet (see figure B)
When a positive-lock attachment is not absolutely required, the measuring tool can be attached to steel parts via the face side using the magnet plate 4.

Maintenance and Service

Maintenance and Cleaning

Keep the measuring tool clean at all times.
Do not immerse the measuring tool in water or other fluids.
Wipe off debris using a moist and soft cloth. Do not use any cleaning agents or solvents.

After-sales Service and Application Service
Our after-sales service responds to your questions concerning the maintenance and repair of your product as well as spare parts. Exploded views and information on spare
parts can also be found at: www.bosch-pt.com Bosch’s application service team will gladly answer questions concerning our products and their accessories. In all correspondence and spare parts orders, please always include the 10-digit article number given on the nameplate of the product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ

At www.bosch-pt.co.uk you can order spare parts or arrange the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
Australia, New Zealand and Pacific Islands Robert Bosch Australia Pty. Ltd.
Power Tools
Locked Bag 66
Clayton South VIC 3169
Customer Contact Center
Inside Australia:
Phone: (01300) 307044
Fax: (01300) 307045
Inside New Zealand:
Phone: (0800) 543353
Fax: (0800) 428570
Outside AU and NZ:
Phone: +61 3 95415555
www.bosch.com.au
Republic of South Africa
Customer service
Hotline: (011) 6519600
Gauteng – BSC Service Centre
35 Roper Street, New Centre Johannesburg
Tel.: (011) 4939375
Fax: (011) 4930126
E-Mail: bsctools@icon.co.za

KZN – BSC Service Centre
Unit E, Almar Centre
143 Crompton Street
Pinetown
Tel.: (031) 7012120
Fax: (031) 7012446
E-Mail: bsc.dur@za.bosch.com
Western Cape – BSC Service Centre Democracy Way, Prosperity Park
Milnerton
Tel.: (021) 5512577
Fax: (021) 5513223
E-Mail: bsc@zsd.co.za
Bosch Headquarters
Midrand, Gauteng
Tel.: (011) 6519600
Fax: (011) 6519880
E-Mail: rbsa-hq.pts@za.bosch.com
Disposal
Measuring tools, accessories and packaging should be sorted for environmental- friendly recycling. Do not dispose of measuring tools and batteries/rechargeable batteries into household waste!
Only for EC countries:
According to the European Guideline 2012/19/EU, measuring tools that are no longer usable, and according to the European Guideline 2006/66/EC, defective or used battery packs/batteries must be collected separately and disposed of in an environmentally correct manner. Batteries no longer suitable for use can be directly returned at:
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge UB 9 5HJ

At www.bosch-pt.co.uk you can order spare parts or arrange the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
Subject to change without notice.