BOSCH GLM 50-22 Professional Laser Measure Instruction Manual

: June 15, 2024
: Bosch

Table of Contents

BOSCH GLM 50-22 Professional Laser Measure
Safety instructions for power supply
Product Description and Specifications
Product Features
Technical data
Operation
Measuring functions
Maintenance and Service
Licenses
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOSCH GLM 50-22 Professional Laser Measure

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 unrecognizable. 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.
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.
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 that contain flammable liquids, gases or dust. Sparks may be produced inside the measuring tool, which can ignite dust or fumes.
Do not open the battery. There is a risk of short-circuiting.
In case of damage and improper use of the battery, vapours may be emitted. The battery can set alight or explode. Ensure the area is well-ventilated and seek medical attention should you experience any adverse effects. The vapors may irritate the respiratory system.
If used incorrectly or if the battery is damaged, flammable liquid may be ejected from the battery. Contact with this liquid should be avoided. If contact accidentally occurs, rinse off with water. If the liquid comes into contact with your eyes, seek additional medical attention. Liquid ejected from the battery may cause irritation or burns.
The battery can be damaged by pointed objects such as nails or screwdrivers or by force applied externally. An internal short circuit may occur, causing the battery to burn, smoke, explode or overheat.
When the battery is not in use, keep it away from paper clips, coins, keys, nails, screws or other small metal objects that could make a connection from one terminal to another. A short circuit between the battery terminals may cause burns or a fire.
Only use the battery with products from the manufacturer. This is the only way in which you can protect the battery against dangerous overload.
Only charge the batteries using chargers recommended by the manufacturer. A charger that is suitable for one type of battery may pose a fire risk when used with a different battery.

Protect the battery against heat, e.g. against continuous intense sunlight, fire, dirt, water and moisture. There is a risk of explosion and short- circuiting.

Safety instructions for power supply

This power supply is not intended for use by children or persons with physical, sensory or mental limitations or a lack of experience or knowledge. This power supply can be used by children aged 8 or older and by persons who have physical, sensory or mental limitations or a lack of experience or knowledge if a person responsible for their safety supervises them or has instructed them in the safe oper-ation of the power supply and they understand the associated dangers. Otherwise, there is a risk of operating errors and injuries.
- Do not expose the power supply to rain or wet conditions. Water entering the power supply will increase the risk of electric shock.
Keep the power supply clean. Dirt poses a risk of electric shock.
Always check the power supply before use. Stop using the power supply if you discover any damage. Do not open the power supply yourself, and have it repaired only by a qualified specialist using only original replacement parts. Damaged power supplies increase the risk of electric shock.

Product Description and Specifications

Please unfold the fold-out page with the diagram of the measuring tool and leave it open while reading the instruction manual.

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.

Product Features

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

Favourites button
Function button
Minus button
Display
Measuring button
Plus button
Basic settings button
On/off/back button
Carrying strap mount
Laser warning label
Serial number
Battery compartment cover locking mechanism
Battery compartment cover
1/4″ tripod thread
Reception lens
Laser beam output
Carrying strap
Protective bag
Li-ion battery pack)
The locking mechanism of the Li-ion battery pack)
USB Type-C® cable
Flap for USB portA)

A) Accessories shown or described are not included with the product as standard. You can find the complete selection of accessories in our accessories range.
B) USB Type-C® and USB-C® are trademarks of USB Implementers Forum.

Display elements

(a) Reference level of measurement
(b) Battery indicator
(c) Measured value lines
(d) Result line
(e) Measuring function display
(f) Status bar
(g) Functions menu
(h) Basic settings menu
(i) Further basic settings menu
(j) Slope angle display (GLM 50-23 G)

Technical data

GLM 50-25 G

Digital laser measure

Article number

| GLM 50-22

3 601 K72 S. .

| GLM 50-23 G

3 601 K72 V01

| GLM 50-23 G

3 601 K72 V00

---|---|---|---
Measuring range)| 0.05–50 m
Measuring range (unfa- favorable conditions)B)| 0.05–20 m
Measuring accuracy)| ±1.5 mm
Measuring accuracy (unfa- favorable conditions)B)| ±3.0 mm
Smallest display unit| 0.5 mm

General

Operating temperature)	–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
Batteries	2 × 1.5 V LR6 (AA)
Battery pack (accessory )	Li-ion
Type	BA 3.7V 1.0Ah A
Article number	1 607 A35 0N8
USB charging connection	Type-C®
Recommended USB Type- C® cable	1 600 A01 6A8
---	---
Rated voltage	3.7 V ____
Capacity	1.0 Ah
Number of battery cells	1
Permitted charging temperature range	0 °C to +60 °C

Power supply

Output voltage	5.0 V ____
Min. output current	500 mA
Recommended power supply)	2 609 120 713 (EU)

2 609 120 718 (UK)

| 1 600 A01 3A0 (ARG)
| 1 600 A01 3A1 (MEX)
| 1 600 A01 3A2 (BRL)

When measuring from the front edge of the measuring tool, this applies for high reflectivity of the target (e.g. a wall painted white), weak background lighting and a 25 °C operating temperature; a distance-dependent deviation of ±0.05 mm/m must additionally be factored in.
When measuring from the front edge of the measuring tool, this applies for high reflectivity of the
target (e.g. a wall painted white), strong background lighting, 25 °C operating temperature and large altitudes. 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.
For additional technical data, visit: https://www.bosch-professional.com/ecodesign The serial number (11) 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.
Never store the measuring tool without an inserted battery compartment cover (13) or lithium-ion battery pack (19) (accessory), particularly in dusty or humid environments.

Lithium-ion battery pack (accessory)

Inserting/changing the lithium-ion battery pack (accessory)

Insert the lithium-ion battery pack (19) (accessory).
To remove the lithium-ion battery pack (19) (accessory), press the locking mechanism (20) and take the lithium-ion battery pack out. (see Fig. A,

Charging the lithium-ion battery pack (accessory)

For recharging, use a USB power supply unit whose technical data (voltage and charging current) corresponds to that of the recommended power supply unit. Observe the operating manual of the USB power supply unit.
Recommended power supply unit: See technical data.
Pay attention to the mains voltage. The voltage of the power source must match the voltage specified on the rating plate of the power adaptor. Power adaptors marked with 230 V can also be operated with 220 V.

Lithium-ion rechargeable batteries are supplied partially charged according to international transport regulations. To ensure full rechargeable battery capacity, fully charge the rechargeable battery before using your tool for the first time. For more information, you can access the online operating instructions at www.bosch-pt.com/manuals

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”) 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.

Measuring Process

When switching on for the first time, the measuring tool will be in the length measurement function. When switching on every subsequent time, the measuring tool will be in the measuring function that was last used.
Three settings are available for the reference level of the measurement. (see “Selecting the Reference Level”, )

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. 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 (with the exception of the continuous measurement function). Therefore, place the measuring tool, as far as this is possible, against or on a firm stop or supporting surface.
The reception lens (15) and the laser beam output (16) must not be covered during the measuring process.

Selecting the Reference Level

For the measurement, you can select from various reference levels:

The rear edge of the measuring tool (e.g. when placed against walls)
The center of the tripod thread (14) (e.g. for tripod measurements)
The front edge of the measuring tool (e.g. when measuring from a table edge)
For more information, you can access the online operating instructions at www.bosch-pt.com/manuals

Basic Settings Menu

In the Basic Settings menu, you can find the following basic settings:

Favorites function
Changing the reference level (see “Selecting the Reference Level”)
Switching audio signals on and off
Switching the display illumination on and off
Switching on and off battery saver mode
ft/m Changing the unit of measurement
Switching on and off vibration (GLM 50-25 G)
Setting the language
Calling up Device Information
Factory settings
Internal memory
Calibration of the grade measurement (see “Accuracy Check”) (GLM 50-23 G)
- Press the button to open the Basic Settings menu.
- Use the button or button to select the required setting.
- To confirm a selection, press the button or the button.
- To exit the Basic settings menu, briefly press the button.
- For more information, you can access the online operating instructions at www.bosch-pt.com/manuals

Measuring functions

Selecting/Changing Measuring Function

You will find the following functions in the Functions menu:

Length measurement
Continuous measurement
Area measurement
Volume measurement
Indirect height measurement
Double indirect height measurement (GLM 50-23 G)
Indirect length measurement (GLM 50-23 G)
Grade measurement/digital spirit level (GLM 50-23 G)
Memory function

Press the button to open the Functions menu.
Use button or button to select the required measuring function.
To confirm the selection, press the button or the button.
For more information, you can access the online operating instructions at www.bosch-pt.com/manuals

Integrated help function

The help function integrated into the measuring tool offers animations for all measuring functions/measuring processes.

Open the Functions menu.
Select the required function with the button or with the button and press the button.
The animation showing the detailed procedure for the selected measuring function is displayed.
Press the button or the button to display the next or the previous step. Accuracy Check Regularly check the accuracy of the distance measurement and grade measurement (GLM 50-23 G).
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 Error 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 the correct operation in every measurement. If a defect is detected, the display will indicate only the symbol shown opposite and the measuring tool switches itself off. In this case, have the measuring tool checked by an after-sales service agent for Bosch power tools.

Maintenance and Service

Maintenance and Cleaning

Only store and transport the measuring tool in the protective bag provided. 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 (15), which must be handled with the same level of care you would give to a pair of glasses or a camera lens. If the measuring tool needs to be repaired, send it off in the protective bag (18). 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. 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

Transport

The recommended lithium-ion batteries are subject to legislation on the transport of dangerous goods. The user can transport the batteries by road without further requirements. When shipping by third parties (e.g.: by air transport or forwarding agency), special requirements on packaging and labeling must be observed. For the preparation of the item being shipped, consulting an expert for hazardous material is required.
Dispatch battery packs only when the housing is undamaged. Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging. Please also observe the possibility of more detailed national regulations.

Disposal

Measuring tools, rechargeable/non-rechargeable batteries, accessories, and packaging should be sorted for environmentally friendly recycling.
Do not dispose of the measuring tools or battery packs/batteries with household waste.

Only for EU countries:
According to 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 Directive 2006/66/EC, defective or drained batteries must be collected separately and disposed of in an environmentally correct manner.
If disposed of 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 the 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.

Battery packs/batteries:
Please observe the notes in the section on transport (see “Transport”,

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