BOSCH GLM 50 C Professional Laser Range Finder Instructions

: June 6, 2024
: Bosch

Table of Contents

BOSCH GLM 50 C Professional Laser Range
Safety Instructions
Product Description and Specifications
Technical data
General
Data transmission
Assembly
Operation
Switching On and Off
Measuring Process
Selecting the Reference Level
Measuring Functions
Basic Settings Menu
Bluetooth® interface
Maintenance and Service
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOSCH GLM 50 C Professional Laser Range

BOSCH-GLM-50-C-Professional-Laser-Range-pro

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 illustra-tion 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 main-tained.
Do not let children use the laser measuring tool unsupervised. They could uninten-tionally 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.
The measuring tool is equipped with a wireless interface. Local operating restric-tions, e.g. in aeroplanes or hospitals, must be observed.
Caution! When using the measuring tool with Bluetooth®, a fault may occur in other devices and systems, aeroplanes and medical devices (e.g. pacemakers, hearing aids). Also, damage to people and animals in the immediate vicinity can-not be completely excluded. Do not use the measuring tool with Bluetooth® in the vicinity of medical devices, petrol stations, chemical plants, areas with a poten-tially explosive atmosphere and in blasting areas. Do not use the measuring tool with Bluetooth® on aeroplanes. Avoid using the product near your body for exten-ded periods.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Robert Bosch Power Tools GmbH is under li-cense.

Product Description and Specifications

Intended Use

The measuring tool is intended for measuring distances, lengths, heights, clearances and inclines, and for calculating areas and volumes.
The measuring tool is suitable for indoor and outdoor use.
The measuring results can be transferred to other devices via Bluetooth®.

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

Display
Measuring button
Plus button
Reference level selection button
On/off button
Bluetooth® button
Function button
Minus button
Battery compartment cover
Battery compartment cover locking mechanism
Serial number
Laser warning label
1/4″ tripod thread
Reception lens
Laser beam output
Protective bag

Display elements
(a) Bluetooth® status
Bluetooth® activated, no connection established Bluetooth® activated, connection established
(b) Reference level of measurement
(c) Battery indicator
(d) Measured value lines
(e) Result line
(f) Measuring function display
(g) Slope angle display
(h) Status bar
(i) Measuring functions menu
(j) Basic settings

Technical data

Article number	3 601 K72 C..
Measuring rangeA)	0.05–50 m
Measuring range (unfavourable conditions)B)	20 m
Measuring accuracyA)	±1.5 mm
Measuring accuracy (unfavourable conditions)B)	±3.0 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)E)	5 mins
Batteries	2 × 1.5 V LR03 (AAA)

Data transmission

Bluetooth ®| Bluetooth ® 4.0

(Classic and Low Energy)F)

---|---
Operating frequency range| 2402–2480 MHz
Max. transmission power| 2.5 mW

A) For measurements from the front edge of the measuring tool, this applies for high reflectivity of the target (e.g. a white-painted wall), weak backlighting and 25 °C operating temperature. In addi-tion, a deviation of ±0.05 mm/m must be taken into account.
For measurements from the rear edge of the measuring tool, applies to low reflectivity of the tar-get (e.g. a dark-painted wall), strong backlighting and –10 °C to +45 °C operating temperature. In addition, a deviation of ±0.15 mm/m must be taken into account.
In continuous measurement mode, the max. operating temperature is +40 °C.
Only non-conductive deposits occur, whereby occasional temporary conductivity caused by con-densation is expected.
Bluetooth® deactivated
When using Bluetooth® Low Energy devices, it may not be possible to establish a connection de-pending on the model and operating system. Bluetooth® tools must support the GATT profile. The serial number (11) on the type plate is used to clearly identify your measuring tool.

Assembly

Inserting/Changing the Batteries

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 il-lustration on the inside of the battery compartment.

Take the batteries out of the measuring tool when you are not using it for a pro-longed period of time. The batteries can corrode and self-discharge during prolonged storage in the measuring tool.

Operation

Start-Up

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. Always carry out an accuracy check before continuing work if the measuring tool has been subjected to severe external influences.

Switching On and Off

Press the (2) button to switch the measuring tool and the laser on.X You can also switch the measuring tool on without the laser by pressing the (5) button.
Press and hold the (5) button to switch off the measuring tool.The measured values and device settings in the memory are retained.

Measuring Process

Once switched on, the measuring tool is in the length measurement function. Once the measuring tool has been switched on, the rear edge of the measuring tool is se-lected as the reference level for measurement. You can change the reference level (see “Selecting the Reference Level”, page 23).

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 using the (5) the (2) button to switch the laser on.
Press the (2) button to start the measurement. 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 and grade measurement functions). Therefore, place the measuring tool, as far as this is possible, against or on a firm stop or supporting surface.

Selecting the Reference Level

You can choose between three different reference levels for the measurement with button (4) :

The rear edge of the measuring tool (e.g. when placing against walls) The front edge of the measuring tool (e.g. when measuring from a table edge)
The centre of the tripod thread (13) (e.g. for tripod measurements)
For more information, you can access the online operating instructions at www .bosch-pt.com/manuals

Measuring Functions

Selecting/Changing Measuring Function

In the function menu, you can find the following functions

Length measurement
Continuous measurement
Area measurement
Volume measurement
Indirect distance measurement
- Indirect height measurement
- Double indirect height measurement
- Indirect length measurement
Wall area measurement
Stake-out function
Grade measurement/digital spirit level
Memory function

Press button (7) to open the Functions menu.
Use button (3) or button (8) to select the required measuring function
To confirm the selection, press button (7) or button (2) .
For more information, you can access the online operating instructions at www .bosch-pt.com/manuals

The measuring tool offers the following basic settings:

Change units of measurement
Switch keyboard sounds on/off
Switch automatic screen rotation on/off
Start calibration
Switch slope angle display on/off

Press and hold the (7) button until the Basic settings menu has opened.
Use buttons (3) or (8) to select the required menu item and confirm this by pressing the (7) button or (2) button.3
Use buttons (3) or (8) to change the setting and confirm this by pressing the (7) button or (2) button.When you confirm a setting, this means that you also exit the Basic settings menu.
To exit the Basic settings menu without changing a setting, press the (5) button .

For more information, you can access the online operating instructions at www .bosch-pt.com/manuals

Bluetooth® interface

Activating the Bluetooth® interface for transmitting data to a mobile device
Ensure that the Bluetooth® interface is activated on your mobile device.

Press the (6) button to bring up the Bluetooth® menu and press the (6) but-ton again to activate the Bluetooth® interface.
If multiple active measuring tools are found, select the appropriate measuring tool us-ing the serial number. You can find the serial number (11) on your measuring tool’s type plate.

The connection status and the active connection (a) are dis-played in the status bar (h) of the measuring tool.
Bosch applications are available to expand the range of func-tions. These can be downloaded in the respective app stores, depending on the device.

Deactivating the Bluetooth® interface
Press the (6) button to bring up the Bluetooth® menu and press the (6) ton again to deactivate the Bluetooth® interface.

Accuracy Check
Regularly check the accuracy of the grade measurement and 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 Error will appear in the display. Switch the measuring tool off and back on, and start the measurement again.The measuring tool monitors correct operation in every measurement. If a de-fect 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 (14), 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 (16).

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, battery packs/batteries, accessories and packaging should be sorted for environmentally friendly recycling.Do not dispose of the measuring tools or rechargeable/non-rechargeable batteries with household waste.
Only for EU countries:
According to the Directive 2012/19/EU, measuring tools that are no longer usable, and according to the Directive 2006/66/EC, defective or used battery packs/batteries, must be collected separately and disposed of in an environmentally correct manner.