Product Features; Inserting/Replacing The Battery; Initial Operation - Bosch GLM 50 Professional Manual Original

OBJ_BUCH-1444-004.book Page 13 Tuesday, December 4, 2012 1:47 PM
A) The working range increases depending on how well the laser light is reflected from the surface of the target (scattered, not reflective) and with in-
creased brightness of the laser point to the ambient light intensity (interior spaces, twilight). In unfavourable conditions (e.g. when measuring out-
doors at intense sunlight), it may be necessary to use the target plate.
B) For measurements from the rear measuring-tool edge. In unfavourable conditions (e. g. at intense sunlight or an insufficiently reflecting surface),
±
the maximum deviation is 10 mm per 50 m. In favourable conditions, a deviation influence of
C) In the continuous measurement function, the maximum operating temperature is +40
D) Less measurements are possible when using 1.2 V rechargeable batteries than with 1.5 V batteries. The battery life listed refers to measurements
without display illumination.
The measuring tool can be clearly identified with the serial number 13 on the type plate.

Product Features

The numbering of the product features shown refers to the il-
lustration of the measuring tool on the graphic page.
1 Display
2 Measuring button
3 Button for area/surface, volume and indirect height
measurement (Pythagoras)
4 Delete / On/Off button **
5 Minus button
6 Button for selection of the reference level
7 Fixture for carrying strap
8 Plus button
9 Length and continuous measurement button
10 Battery lid
11 Laser beam outlet
12 Reception lens
13 Serial number
14 1/4" thread
15 Laser warning label
16 Latch of battery lid
17 Protective pouch
18 Tripod*
19 Laser viewing glasses*
20 Laser target plate*
* The accessories illustrated or described are not included as
standard delivery.
** Keep button pressed to call up the extended functions.
Display Elements
a Measured-value lines
b Result line
c Measuring functions
Length measurement
Continuous measurement
Area/surface measurement
Volume measurement
Simple Pythagoras Measurement
d Laser, switched on
e Measurement reference level
f Temperature warning
g Battery low indicator
h "ERROR" indication
Bosch Power Tools
±0.05
mm/m must be taken into account.
°C
.
Assembly

Inserting/Replacing the Battery

Using alkali-manganese or rechargeable batteries is recom-
mended for operation of the measuring tool.
Less measurements are possible when using 1.2 V recharge-
able batteries than with 1.5 V batteries.
To open the battery lid 10, press the latch 16 and remove the
battery lid. Insert the batteries/rechargeable batteries. When
inserting, pay attention to the correct polarity according to
the representation on the inside of the battery compartment.
When inserting the batteries/rechargeable batteries, pay at-
tention to the correct polarity according to the representation
on the inside of the battery compartment.
When the battery symbol appears for the first time on the
display, at least 100 individual measurements are still possi-
ble. The continuous measurement mode is deactivated.
When the battery symbol flashes, the batteries/recharge-
able batteries must be replaced. Measurements are no longer
possible.
Always replace all batteries/rechargeable batteries at the
same time. Do not use different brands or types of batter-
ies/rechargeable batteries together.
 Remove the batteries/rechargeable batteries from the
measuring tool when not using it for longer periods.
When storing for longer periods, the batteries/rechargea-
ble batteries can corrode and discharge themselves.
Operation

Initial Operation

 Do not leave the switched on measuring tool unattend-
ed and switch the measuring tool off after use. Other
persons could be blinded by the laser beam.
 Protect the measuring tool against moisture and direct
sun light.
 Do not subject the measuring tool to extreme tempera-
tures or variations in temperature. As an example, do
not leave it in vehicles for long time. In case of large varia-
tions in temperature, allow the measuring tool to adjust to
the ambient temperature before putting it into operation.
In case of extreme temperatures or variations in tempera-
ture, the accuracy of the measuring tool can be impaired.
 Avoid heavy impact to or falling down of the measuring
tool. After severe exterior effects to the measuring tool, it
English | 13
2 609 140 773 | (4.12.12)