BOSCH GLM 40 Professional Digital Laser Rangefinder Instruction Manual

: June 1, 2024
: Bosch

Table of Contents

BOSCH GLM 40 Professional Digital Laser Rangefinder
Product Information
Product Usage Instructions
Safety Instructions
Product Description and Specifications
Technical data
Inserting/Changing the Battery
Operation
Measuring functions
Maintenance and Service
After-Sales Service and Application Service
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOSCH GLM 40 Professional Digital Laser Rangefinder

Product Information

Specifications

Model: GLM 40 Professional
Measurement Range: 0.15-40m
Accuracy: ± 2mm
Laser Type: 635nm, < 1mW
Laser Class: Class 2, < 1.5mrad (full angle)
Display: LCD Display
Power Source: 2x AAA Batteries
Operating Temperature: 0-40°C

Product Usage Instructions

Battery Installation/Replacement
Ensure correct polarity when inserting or replacing batteries based on the illustration inside the battery compartment.

Power On/Off
To power on/off the device:

Press and hold the Power button (5) for a few seconds.

Measurement Process
To take measurements:

Aim the laser at the target and press the Measure button (2).
The measurement will be displayed on the screen.

Settings and Functions
Explore different measurement functions and adjust settings using the respective buttons on the device.

Maintenance and Service
Regularly clean the device with a soft, dry cloth. Avoid harsh chemicals or solvents that may damage the unit.

FAQ

Q: How do I handle a temperature warning on the device?
A: If a temperature warning appears, allow the device to cool down before further use to prevent overheating.
Q: What should I do if I encounter an error message?
A: Refer to the user manual for error code explanations. If the issue persists, contact customer service for assistance.

Original instructions
GLM 40 Professional

Robert Bosch Power Tools GmbH
70538 Stuttgart • GERMANY
www.bosch-professional.com
1 609 92A 8LF (2024.03) O / 235

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Safety Instructions

All instructions must be read and observed in order for the measuring tool to function safely. The safeguards integrated into the measuring tool may be compromised if the measuring tool is not used in accordance with these instructions. Never make warning signs on the measuring tool un recognisable. SAVE THESE
INSTRUCTIONS FOR FUTURE REFERENCE AND INCLUDE THEM WITH THE MEASURING TOOL WHEN TRANSFERRING IT TO A THIRD PARTY.
Warning! If operating or adjustment devices other than those specified here are used or other procedures are carried out, this can lead to dangerous exposure to radiation.
The measuring tool is delivered with a laser warning sign (marked in the illustration of the measuring tool on the graphics page).
If the text of the laser warning label is not in your national language, stick the provided warning label in your national language over it before operating for the first time.
Do not direct the laser beam at persons or animals and do not stare into the direct or reflected laser beam yourself. You could blind somebody, cause accidents or damage your eyes.
If laser radiation hits your eye, you must close your eyes and immediately turn your head away from the beam.
Do not make any modifications to the laser equipment.
Have the measuring tool serviced only by a qualified specialist using only original replacement parts. This will ensure that the safety of the measuring tool is maintained.
Do not let children use the laser measuring tool unsupervised. They could unintentionally blind themselves or other persons.
Do not use the measuring tool in explosive atmospheres which contain flammable liquids, gases or dust. Sparks may be produced inside the measuring tool, which can ignite dust or fumes.
Do not use the laser goggles (accessory) as protective goggles. The laser goggles make the laser beam easier to see; they do not protect you against laser radiation.
Do not use the laser goggles (accessory) as sunglasses or while driving. The laser goggles do not provide full UV protection and impair your ability to see colours.

Product Description and Specifications

Intended Use

The measuring tool is intended for measuring distances, lengths, heights and clearances, and for calculating areas and volumes.
The measuring tool is suitable for indoor and outdoor use.
This product is a consumer laser product in accordance with EN 50689.

Product Features
The numbering of the product features refers to the representation of the measuring tool in the images.

Display
Measuring button
Minus button
Function button
On/off button
Plus button
Battery compartment cover
Locking mechanism of the battery compartment cover
Serial number
Laser warning label
Reception lens
Laser beam output

Display elements

(a) Laser switched on
(b) Temperature warning
(c) Battery warning
(d) Measured value lines
(e) Result line
(f) Unit of measurement
(g) Measuring function display
(h) Memory value display
(i) Error display “Error”

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Technical data

Digital laser measure GLM 40

Article number	3 601 K72 9..
Measuring rangeA)	0.15–40 m
Measuring range (unfavourable conditions)B)	20 m
Measuring accuracyA)	±1.5 mm
Measuring accuracy (unfavourable conditions)B)	±3.0 mm
Smallest display unit	1 mm

General

Operating temperatureC)	–10 °C to +45 °C
Storage temperature	–20 °C to +70 °C
Relative air humidity max.	90 %
Max. altitude	2000 m
Pollution degree according to IEC 61010-1	2D)
Laser class	2
Laser type	635 nm, < 1 mW
Divergence of the laser beam	< 1.5 mrad (full angle)
Automatic switch-off after approx.
– Laser	20 s
– Measuring tool (without measurement)	5 min

Digital laser measure

Batteries 2 × 1.5 V LR03 (AAA)

When measuring from the back edge of the measuring tool, this applies for high reflectivity of the target (e.g. a wall painted white), weak background lighting and a 20 °C operating temperature; a distance-dependent deviation of ±0.05 mm/m must additionally be factored in.
When measuring from the back edge of the measuring tool, this applies for high reflectivity of the target (e.g. a wall painted white), strong background lighting, 20 °C operating temperature and high elevation. In addition, a deviation of ±0.15 mm/m must be taken into account, depending on the distance.
In continuous measurement mode, the max. operating temperature is +40 °C.
Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is expected.

The serial number (9) on the type plate is used to clearly identify your measuring tool.

Inserting/Changing the Battery

Always replace all the batteries/rechargeable batteries at the same time. Only use batteries/rechargeable batteries from the same manufacturer and which have the same capacity.
When inserting the batteries, ensure that the polarity is correct according to the illustration on the inside of the battery compartment.
Take the batteries out of the measuring tool when you are not using it for a prolonged period of time. The batteries can corrode and self-discharge during prolonged storage.

Operation

Starting Operation

Never leave the measuring tool unattended when switched on, and ensure the measuring tool is switched off after use. Others may be dazzled by the laser beam.
Protect the measuring tool from moisture and direct sunlight.
Do not expose the measuring tool to any extreme temperatures or variations in temperature. For example, do not leave it in a car for extended periods of time. In case of large variations in temperature, allow the measuring tool to adjust to the ambient temperature before putting it into operation. The precision of the measuring tool may be compromised if exposed to extreme temperatures or variations in temperature.
Avoid substantial knocks to the measuring tool and avoid dropping it. After strong external influences on the measuring tool, you should always carry out an accuracy check (see
“Accuracy Check”, page 18) before further work.

Switching On and Off

Press the button to switch the measuring tool and the laser on.
You can also switch on the measuring tool without the laser by pressing the button. Press and hold the button to switch off the measuring tool.
The measured values and device settings in the memory are retained.
All stored values are retained when the tool is switched off.

Measuring Process

Once switched on, the measuring tool is in the length measurement function.
The rear edge of the measuring tool is always the reference level for the measurement.
Apply the measuring tool to the point at which you want to start the measurement (e.g. wall).
If you have switched on the measuring tool with the button, then briefly press the button to switch on the laser.
Press the button to start the measurement.
Once the measurement process is complete, the laser beam will switch off. For a further measurement, repeat this process.
Measured values or end results can be added or subtracted.
In the continuous measurement function, the measurement begins immediately upon switching on the function.
For more information, you can access the online operating instructions at www.bosch-pt.com/manuals
The measuring tool must not be moved during a measurement. Therefore, place the measuring tool, as far as this is possible, against or on a firm stop or supporting surface.
The reception lens (11) and the laser beam output (12) must not be covered during the measuring process.

Basic settings
The measuring tool offers the following basic settings:

Changing the unit of measurement
Switching audio signals on and off
For more information, you can access the online operating instructions at www.bosch-pt.com/manuals

Measuring functions

Accuracy Check

Regularly check the accuracy of the distance measurement.
For more information, you can access the online operating instructions at www.bosch-pt.com/manuals

Error Message
If a measurement cannot be performed correctly, the error message will appear in the display.

Try to perform the measuring process again.
If the error message appears again, switch the measuring tool off and back on, and start the measurement again.
The measuring tool monitors correct operation in every measurement. If a defect is detected, all indicators on the display will flash. In this case, or if you are unable to rectify an error using the corrective measures, send the measuring tool to the Bosch after-sales service via your dealer.

Maintenance and Service

Maintenance and Cleaning

Keep the measuring tool clean at all times.
Never immerse the measuring tool in water or other liquids.
Wipe off any dirt using a damp, soft cloth. Do not use any detergents or solvents.
Take particular care of the reception lens (11), which must be handled with the same level of care you would give to a pair of glasses or a camera lens.

After-Sales Service and Application Service

Our after-sales service responds to your questions concerning maintenance and repair of your product as well as spare parts. You can find explosion drawings and information on spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help you with any questions about 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
You can find further service addresses at:www.bosch-pt.com/serviceaddresses

Disposal

Measuring tools, accessories and packaging should be recycled in an environmentally friendly manner.
Do not dispose of measuring tools or batteries with household waste.
Only for EU countries:
- According to the Directive 2012/19/EU on waste electrical and electronic equipment and its transposition into national law, measuring tools that are no longer usable, and, according to the Directive 2006/66/EC, defective or drained batteries must be collected separately and disposed of in an environmentally correct manner.
- If disposed incorrectly, waste electrical and electronic equipment may have harmful effects on the environment and human health, due to the potential presence of hazardous substances.
Only for United Kingdom:
According to The Waste Electrical and Electronic Equipment Regulations 2013 (SI 2013/3113) (as amended) and the Waste Batteries and Accumulators Regulations 2009 (SI 2009/890) (as amended), products that are no longer usable must be collected separately and disposed of in an environmentally friendly manner.

–> http://eu-doc.bosch.com/