Bosch Professional GLM 50-27 CG / 50-27 C Manual

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.

1. Bluetooth^® button
2. Function button
3. Minus button
4. Display
5. Measuring button
6. Plus button
7. Basic settings button
8. On/off/back button
9. Carrying strap mount
10. Laser warning label
11. Serial number
12. Battery compartment cover locking mechanism
13. Battery compartment cover
14. 1/4" tripod thread
15. Reception lens
16. Laser beam output
17. Carrying strap^A)
18. Protective bag
19. Li-ion battery pack^A)
20. Locking mechanism of the Li-ion battery pack^A)
21. USB Type-C® cable^A)B)
22. Flap for USB port^A)

Display Elements

1. Reference level of measurement
2. Bluetooth^® status
   Bluetooth^® activated, connection not established
   Bluetooth^® activated, connection established
3. Battery indicator
4. Measured value lines
5. Result line
6. Measuring function display
7. Slope angle display
8. Status bar
9. Functions menu
10. Basic settings menu
11. Further basic settings menu

Technical data

General

Operating temperatureC)	–10°C to +45°C	–10°C to +45°C
Storage temperature	–20°C to +70°C	–20°C to +70°C
Relative air humidity max.	90%	90%
Max. altitude	2000 m	2000 m
Pollution degree according to IEC 61010-1	2D)	2D)
Laser class	2	2
Laser type	515 nm, < 1 mW	635 nm, < 1 mW
Divergence of the laser beam	< 1.5 mrad (full angle)	< 1.5 mrad (full angle)
Automatic switch-off after approx.
– Laser	20 s	20 s
– Measuring tool (without measurement)E)	5 min	5 min
Batteries	2 × 1.5 V LR6 (AA)	2 × 1.5 V LR6 (AA)
Battery pack (accessory)	Li-ion	Li-ion
Type	BA 3.7V 1.0Ah A	BA 3.7V 1.0Ah A
Article number	1 607 A35 0N8	1 607 A35 0N8
USB charging connection	Type-C®	Type-C®
Recommended USB Type-C® cable	1 600 A01 6A8	1 600 A01 6A8
Rated voltage	3.7 V	3.7 V
Capacity	1.0 Ah	1.0 Ah
Number of battery cells	1	1
Permitted charging temperature range	+10°C to +35°C	+10°C to +35°C

Power supply

Output voltage	5.0 V	5.0 V
Min. output current	500 mA	500 mA
Recommended power supplyF)	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)	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)

Data transmission

1. 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 20°C operating temperature; a distance-dependent deviation of ±0.05 mm/m must additionally be factored in.
2. 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, a 20°C operating temperature and high elevation; a distance-dependent deviation of ±0.15 mm/m must additionally be factored in.
3. In continuous measurement mode, the max. operating temperature is +40°C.
4. Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is expected.
5. Bluetooth® deactivated
6. For additional technical data, visit:https://www.bosch-professional.com/ecodesign
7. When usingBluetooth® Low Energy devices, it may not be possible to establish a connection depending 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.

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.