Technical Data; Inserting/Changing The Batteries; Starting Operation - Bosch GLL 2-20 G Professional Manual Original

Technical Data

Line laser
Article number
A)
Work area (radius)
B)C)D)
Levelling accuracy
Self-levelling range
Levelling time
Operating temperature
Storage temperature
Max. altitude
Relative air humidity max.
Pollution degree according to
IEC 61010-1
Laser class
Laser type
C
6
Divergence
Tripod mount
Batteries
Operating time (for cross-line
B)
operation)
Weight according to EPTA-Pro-
cedure 01:2014
Dimensions
(length × width × height)
Protection rating
A) The working range may be reduced by unfavourable environ-
mental conditions (e.g. direct sunlight).
B) At 20–25 °C
C) The values stated presuppose normal to favourable environ-
mental conditions (e.g. no vibration, no fog, no smoke, no direct
sunlight). Extreme fluctuations in temperature can cause devi-
ations in accuracy.
D) Applies for the intersection point and the corresponding angles
90°/180°/270°
E) Only non-conductive deposits occur, whereby occasional tem-
porary conductivity caused by condensation is expected.
The serial number (6) on the type plate is used to clearly identify your
measuring tool.
Assembly

Inserting/Changing the batteries

It is recommended that you use alkaline manganese batter-
ies to operate the measuring tool.
Press the locking mechanism (8) upwards to open the bat-
tery compartment cover (9) and remove the battery com-
partment cover. Insert the batteries.
When inserting the batteries, ensure that the polarity is cor-
rect according to the illustration on the inside of the battery
compartment.
Bosch Power Tools
The battery indicator (3) always indicates the current status
of the battery.
GLL 2-20 G
If the batteries are almost empty, the battery indicator (3)
3 601 K65 ...
will flash continuously. The laser lines will flash for 5 seconds
every 5 minutes.
10 m
If the batteries are empty, the laser lines and the battery in-
±0.4 mm/m
dicator will flash once before the measuring tool switches
±4°
off.
< 4 s
Always replace all the batteries at the same time. Only use
–5 °C to +40 °C
batteries from the same manufacturer and which have the
same capacity.
–20 °C to +70 °C
u
2000 m
90 %
E)
2
Operation
2
< 10 mW, 500–540 nm

Starting Operation

10
u
30 × 20 mrad (full angle)
1/4"
u
4 × 1.5 V LR6 (AA)
5 h
0.62 kg
111 × 72 × 119 mm
IP 64
u
u
Switching On/Off
To switch on the measuring tool, slide the on/off switch (2)
to the ON position. As soon as it is switched on, the measur-
ing tool emits laser beams from the outlet apertures (1).
u
To switch off the measuring tool, slide the on/off switch (2)
to the OFF position. The pendulum unit is locked when the
tool is switched off.
u
Take the batteries out of the measuring tool when you
are not using it for a prolonged period of time. The bat-
teries can corrode and self-discharge during prolonged
storage in the measuring tool.
Protect the measuring tool from moisture and direct
sunlight.
Do not expose the measuring tool to any extreme tem-
peratures or fluctuations in temperature. For example,
do not leave it in a car for extended periods of time. If it
has been subjected to significant fluctuations in temper-
ature, first allow the measuring tool to adjust to the ambi-
ent temperature and then always carry out an accuracy
check before continuing work (see "Accuracy Check of
the Measuring Tool", page 8).
The precision of the measuring tool may be compromised
if exposed to extreme temperatures or fluctuations 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 (see "Accuracy
Check of the Measuring Tool", page 8).
Switch the measuring tool off when transporting it.
The pendulum unit is locked when the tool is switched off,
as it can otherwise be damaged by big movements.
Do not direct the laser beam at persons or animals and
do not stare into the laser beam yourself (even from a
distance).
Never leave the measuring tool unattended when
switched on, and ensure the measuring tool is
switched off after use. Others may be blinded by the
laser beam.
1 609 92A 607 | (14.01.2021)
English | 7