Bosch GLM 50 C Professional Assembly instructions

IMPORTANT:
Read Before Using
IMPORTANT :
Lire avant usage
IMPORTANTE:
Leer antes de usar
For English Version
See page 8
Version française
Voir page 40
Versión en español
Ver la página 77
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Operating/Safety Instructions
Consignes de sécurité/d’utilisation
Instrucciones de funcionamiento
y seguridad
1-877-BOSCH99 (1-877-267-2499) www.boschtools.com
5°
10.345m
4.900m
2.500m
126.05m
3
GLM 50 C

-2-
L⁄
4'02"
0.0° W
8'05"
H⁄
12'08"
456.45ft3
10
5°
10.345m
4.900m
2.500m
126.05m
3
12
11
9
15
5432
1
14 13
678
g
f
h
a b c f i d
ft/m
0 '
0"⅓2
CAL
e

-3-

-4-
B
X
A
C
11.430 m
10.160 m
8.890
0.0°
m
m7.620
11.430 m
10.160 m
8.890
0.0°
m
m7.620
A

-5-
D
C
X
A
A
B
C
X
C

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2.00 ft2x
4'00"
1
2
3
1x 2.0 ft
2x 2.0 ft
F
H
L3
L2
L1
E
SET
Func
2.000 ft

-7-
G

-8-
Read all instructions. Failure to
follow all instructions listed below
may result in hazardous radiation exposure, electric
shock, fire and/or serious injury.
The term “laser measure” in the warnings listed below
refers to your battery-operated (cordless) laser mea-
suring tool.
SAVE ALL WARNINGS AND INSTRUCTIONS
FOR FUTURE REFERENCE
The following label is on your
laser measure for your safety.
ALWAYS BE AWARE of its
location when using the laser
measure.
DO NOT direct the
laser beam at per-
sons or animals
and do not stare into the laser beam
yourself. This laser measure produces class 2 laser
radiation and complies with 21 CFR 1040.10 and
1040.11 except for deviations pursuant to Laser No-
tice No. 50, dated June 24, 2007. This can lead to
persons being blinded.
DO NOT stare directly at the laser beam or project
the laser beam directly into the eyes of others. Seri-
ous eye injury could result.
DO NOT place the laser measure in a position that
may cause anyone to stare into the laser beam inten-
tionally or unintentionally. Serious eye injury could
result.
DO NOT operate the laser measure around children
or allow children to operate the laser measure. Seri-
ous eye injury could result.
ALWAYS: Make sure that any bystanders in the vicin-
ity of use are made aware of the dangers of looking
directly into the laser measure.
General Safety Rules

-9-
Never aim the beam at a workpiece with a reflective
surface. Bright shiny reflective sheet steel or similar
reflective surfaces are not recommended for laser
use. Reflective surfaces could direct the beam back
towards the operator.
Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
DO NOT use any optical tools such as, but not limited
to, telescopes or transits to view the laser beam. Se-
rious eye injury could result.
DO NOT leave the laser measure “ON” unattended in
any operation mode. ALWAYS turn the laser measure
“OFF” when not in use. Leaving the laser measure
“ON” increases the risk of someone inadvertently star-
ing into the laser beam.
DO NOT operate the laser measure in combustible
areas such as in the presence of flammable liquids,
gases or dust.
Do not use the laser viewing glasses as safety gog-
gles. The laser viewing glasses are used for improved
visualization of the laser beam, but they do not protect
against laser radiation.
Do not use the laser viewing glasses as sun glasses
or in traffic. The laser viewing glasses do not afford
complete UV protection and reduce color perception.
ALWAYS position the laser measure securely. Dam-
age to the laser measure and/or serious injury to the
user could result if the laser measure falls.
Take care to recognize the accuracy and range of the
laser measure. Measurement may not be accurate if
used beyond the rated range of the laser measure.
DO NOT remove or deface any warning or caution
labels. Removing labels increases the risk of exposure
to laser radiation.

-10-
Electrical safety
Batteries can explode or leak, cause injury or fire. To
reduce this risk, always follow all instructions and
warnings on the battery label and package.
DO NOT short any battery terminals.
DO NOT charge alkaline batteries.
DO NOT mix old and new batteries. Replace all of
them at the same time with new batteries of the
same brand and type.
DO NOT mix battery chemistries.
Dispose of or recycle batteries per local code.
DO NOT dispose of batteries in fire.
Keep batteries out of reach of children.
Remove batteries if the device will not be used for
several months.
Maintenance
DO NOT disassemble the laser measure. There are
no user serviceable parts inside. Disassembling the
laser will void all warranties on the product. Do not
modify the product in any way. Modifying the laser
measure may result in hazardous laser radiation expo-
sure.
ALWAYS remove the batteries when cleaning the la-
ser light aperture to laser lens.
DO NOT use this laser measure for any purpose other
than those outlined in this manual. This could result
in serious injury.
ALWAYS use only the accessories that are recom-
mended by the manufacturer of your laser measure.
Use of accessories that have been designed for use
with other laser measures could result in serious in-
jury.
Repair and servicing must always be performed by
a qualified repair facility. Repairs performed by un-
qualified personnel could result in serious injury.

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Bluetooth®
Do not use the laser measure with Bluetooth® in
the vicinity of gas stations, chemical plants, areas
where there is danger of explosion and areas sub-
ject to blasting. Do not use the laser measure with
Bluetooth® in airplanes. Do not use the laser measure
with Bluetooth® in the vicinity of medical devices.
Avoid operation in the direct vicinity of the human
body over longer periods of time. When using the la-
ser measure with Bluetooth®, interference with other
devices and systems, airplanes and medical devices
(e.g., cardiac pacemakers, hearing aids) may occur.
The Bluetooth® word mark and logos are registered
trademarks owned by Bluetooth SIG, Inc. and any use
of such marks by Robert Bosch Tool Corporation is
under license.
FCC Caution
The manufacturer is not responsible for radio inter-
ference caused by unauthorized modifications to this
equipment. Such modifications could void the user’s
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1) This device may not cause harmful interference,
and
2) This device must accept any interference received,
including interference that may cause undesired
operation.
NOTE! This equipment has been tested and found to
comply with the limits for a Class B digital devices,
pursuant to Part 15 of the FCC rules. These limits are
designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment generates uses and can radiate radio fre-
quency energy and, if not installed and used in ac-
cordance with the instructions, may cause harmful
interference to radio communications. However, there

-12-
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
t3FPSJFOUPSSFMPDBUFUIFSFDFJWJOHBOUFOOBt*ODSFBTFUIFTFQBSBUJPOCFUXFFOUIFFRVJQNFOUand receiver.
t$POOFDUUIFFRVJQNFOUJOUPBOPVUMFUPOBDJSDVJUdifferent from that to which the receiver is connect-
ed.
t$POTVMUUIFEFBMFSPSBOFYQFSJFODFESBEJP57technician for help.
“This device has been designed to operate with the
antennas listed below, and having a maximum gain of
0.9 dB. Antennas not included in this list or having a
gain greater than 0.9 dB are strictly prohibited for use
with this device. The required antenna impedance is
50 ohms.”
“To reduce potential radio interference to other users,
the antenna type and its gain should be so chosen that
the equivalent isotropically radiated power (e.i.r.p.) is
not more than that permitted for successful commu-
nication.”
“Exposure to Radio Frequency (RF) Signals: The wire-
less device is a radio transmitter and receiver. It is
designed and manufactured not to exceed the emis-
sion limit for exposure to radio frequency (RF) energy
set by the Ministry of Health (Canada), Safety Code
6. These limits are part of comprehensive guidelines
and established permitted levels of RF energy for the
general population.
These guidelines are based on the safety standards
previously set by international standard bodies. These
standards include a substantial safety margin de-
signed to assure the safety of all persons, regardless
of age and health.
This device and its antenna must not be co-located

-13-
or operating in conjunction with any other antenna or
transmitter.
This device has been shown to be capable of compli-
ance for localized specific absorption rate (SAR) for
uncontrolled environment / general public exposure
limits specific in ANSI/IEEE C95.1-1992 and had been
tested in accordance with the measurement proce-
dures specified in IEEE 1528-2003.”
IMPORTANT: Some of the following symbols may be
used on your laser measure. Please study them and
learn their meaning. Proper interpretation of these
symbols will allow you to operate the laser measure
better and safer.
Symbol Name Designation/
Explanation
Warning
symbol
Alerts user to warning
messages
Read manual
symbol
Alerts user to read
manual
This symbol designates that this laser
measure complies with Part 15 of the
FCC Rules.
Symbols

-14-
Technical Data
Laser Measure GLM 50 C
Article Number 3601K72C10
Measuring range (typical): 6 in – 165 ft (0.15
– 50 m)A
Measuring accuracy (typical)
±1/16 in (±1.5 mm)
B
Lowest indication unit ±1/32 in (0.1 mm)
Indirect Distance Measurement and Vial
Measuring range 0°–360° (4 x 90°)
Angle Measurement
Measuring range 0°–360° (4 x 90°)
Measuring accuracy (typical) ±0.2° C/D
Lowest indication unit 0.1°
General
Operating temperature +14 °F to 113 °F
(-10 °C to 45 °C)E
Storage temperature -4 °F to 158 °F
(-20 °C to 70 °C)
Relative air humidity, max. 90 %
Laser class 2
Laser type 635 nm, <1 mW
Laser beam diameter at 77 °F
(25 °C) approx.
– at 33 ft (10 m) distance
– at 165 ft (50 m) distance
4/11 in (9 mm)
1-3/4 in (45 mm)
Weight 0.22 lb (0.1 kg)
Dimensions 4.2 x 1.8 x 0.9 in
(106 x 45 x 24
mm)

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Automatic switch-offafter approx.
– Laser
– Laser measure (without mea-
surement)
– Display/ Laser measure
(without measurement)
20 s F
5 min G
5 min / 15 min H
Degree of protection IP 54 (dust and
splash proof)I
Batteries 2 x 1.5 V AAA
(LR03)
Battery life, approximately
– Individual measurements
– Real time measuring
10,000
G
2.5 h
G
Data transmission
Bluetooth® Bluetooth® 4.0
(Classic and Low
Energy)
J
AThe working range increases depending on how well the laser
light is reflected from the surface of the target (scattered, not
reflective) and with increased brightness of the laser point to the
ambient light intensity (interior spaces, twilight). In unfavorable
conditions, e.g., with extreme illumination or a badly reflecting
surface, the measuring range may be limited.
BIn favorable conditions, a deviation influence of ±0.05 mm/m
must be taken into account. In unfavorable conditions, e.g.,
with extreme illumination, badly reflecting surface or the room
temperature deviating heavily from 77 °F (25 °C), the maximum
deviation can be up to ±3.0 mm. Additionally, a deviation influ-
ence of 0.15 mm/m must be taken into account.
CAfter calibration at 0° and 90° with an additional grade error of
±0.01°/degree to 45° (max.).
DAt 77 °F (25 °C ) operating temperature.
EIn the real time measuring function, the maximum operating
temperature is 104 °F (40 °C).

-16-
Intended Use
The laser measure is intended for measuring distanc-
es, lengths, heights and clearances. The laser measure
is suitable for measuring indoors.
FShut-off after approximately 5 minutes in the real time measur-
ing function
GBluetooth® deactivated
HBluetooth® activated
IBattery compartment not included.
JFor Bluetooth® low energy devices, establishing a connection
may not be possible, depending on model and operating system.
Bluetooth® devices must support the SPP profile.
The laser measure can be clearly identified with the
serial number 11 on the type plate.

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Features
The numbering of the product features shown refers
to the illustration of the laser measure on the graphic
page.
1Display
2Measure button [
]
3Plus button [ ]
4Measuring reference
button
5Clear / On/Off
button [ ]
6Bluetooth® button
7Function button
[Func]
8Minus button [ ]
9Battery lid
10 Latch of battery lid
11 Serial number
12 Laser warning label
13 1/4” tripod thread
14 Reception lens
15 Laser beam outlet
16 Protective pouch
17 Hand strap
18 Target cards
19 ID Tag*
20 Tripod**
* Optional accessory
** Not included as
standard delivery

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Display elements
aStatus Bluetooth®
Bluetooth®
activated, no
connection
established
Bluetooth® acti-
vated, connec-
tion established
bMeasuring reference
point
cBattery indicator
dMeasured-value lines
eResult line
fMeasuring functions:
Length
measurement
Real time
measurement
Area measure-
ment
Level
Volume
measurement
Indirect distance
measurement
Indirect height
measurement
Double indirect
height measure-
ment
Indirect length
measurement
Wall-surface
measurement
Stake out function
Memory functions
gIndicator for angle of
inclination
hStatus bar
iBasic settings
Sound
Calibration
Spirit level
Display rotation
Units of measure-
ment
Font size

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Assembly
Inserting/Replacing the Batteries
AAA Alkaline batteries are recommended for the laser
measure.
To open the battery lid 9, press the latch 10 and re-
move the battery lid. Insert the batteries. When insert-
ing, pay attention to the correct polarity according to
the representation on the inside of the battery com-
partment.
When the empty battery symbol first appears on the
display, then approximately 100 measurements are
still possible. When the battery symbol is empty and
red flashing, measurements are no longer possible.
Replace the batteries.
Always replace all batteries at the same time. Only
use batteries from one brand and with identical ca-
pacity.
Remove the batteries from the laser measure when
not using it for extended periods. When storing for
extended periods, the batteries can corrode and dis-
charge themselves.

-20-
Operation
Do not leave the switched-on laser
measure unattended and switch
the laser measure offafter use. Other persons could
be blinded by the laser beam.
Protect the laser measure against moisture and di-
rect sun light.
Do not subject the laser measure to extreme temper-
atures 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 laser mea-
sure to adjust to the ambient temperature before put-
ting it into operation. In case of extreme temperatures
or variations in temperature, the accuracy of the laser
measure can be impaired.
Avoid heavy impact to or falling down of the laser
measure. After severe exterior effects to the laser
measure, it is recommended to carry out an accuracy
check (see “Accuracy Check of the Distance Measure-
ment”, page 36) each time before continuing to work.
Switching On and Off
– To switch on the laser measure and the laser, press
the measure button 2[
] or clear/ on/offbutton 5
[ ].
– To switch offthe laser measure press and hold
clear/ on/offbutton 5[ ].
Do not point the laser beam at
persons or animals and do not
look into the laser beam yourself, not even from a
large distance.
The values in the memory and the device settings are
retained when you switch the laser measure off.
Measuring Procedure
Once switched on, the laser measure is in the real time
measuring function with large font. The laser is auto-
matically activated and the laser measure is measur-
ing. You can set other measuring functions by press-