Bosch GPL 3 Professional Original Instructions Manual page 10

OBJ_BUCH-807-005.book Page 10 Wednesday, February 10, 2016 4:07 PM
10 | English
Technical Data
Point Laser
Article number
Working range
Levelling Accuracy
Self-levelling range (typical)
alongside the
– longitudinal axis
– lateral axis
Levelling duration, typically
Operating temperature
Storage temperature
Relative air humidity, max.
Laser class
Laser type
Tripod mount
Batteries
Operating time, approx.
Weight according to EPTA-
Procedure 01:2014
Dimensions (length x width x
height)
Degree of protection
The measuring tool can be clearly identified with the serial number 7 on
the type plate.
Assembly
Inserting/Replacing the Batteries
Alkali-manganese batteries are recommended for the meas-
uring tool.
To open the battery compartment 3, turn the latch 2 in clock-
wise direction to position and pull off the battery lid. In-
sert the batteries provided. When inserting, pay attention to
the correct polarity according to the representation on the in-
side of the battery compartment.
Position the battery lid to the bottom of the housing and then
push it upward. To lock the battery lid, turn the latch 2 in anti-
clockwise direction to the position.
When the laser beams flash slowly during operation, the bat-
teries are low. When the flashing begins, the measuring tool
can be operated for approx. 8 h.
Always replace all batteries at the same time. Only use batter-
ies from one brand and with the identical capacity.
 Remove the batteries from the measuring tool when
not using it for extended periods. When storing for ex-
tended periods, the batteries can corrode and self-dis-
charge.
1 609 92A 261 | (10.2.16)
Operation
GPL 3
Initial Operation
3 601 K66 1..
 Protect the measuring tool against moisture and direct
30 m
sun light.
± 0.3 mm/m
 Do not subject the measuring tool to extreme tempera-
tures or variations in temperature. As an example, do
not leave it in vehicles for a long time. In case of large vari-
± 5 °
ations in temperature, allow the measuring tool to adjust to
± 3 °
the ambient temperature before putting it into operation.
In case of extreme temperatures or variations in tempera-
<4 s
ture, the accuracy of the measuring tool can be impaired.
–10 °C...+40 °C
 Avoid heavy impact to or falling down of the measuring
–20 °C...+70 °C
tool. Damage to the measuring tool can impair its accura-
90 %
cy. After heavy impact or shock, compare the laser lines or
2
plumb beams with a known horizontal or vertical reference
line or with already checked plumb points.
635 nm, <1 mW
 Switch the measuring tool off during transport. When
1/4"
switching off, the levelling unit, which can be damaged in
3 x 1.5 V LR06 (AA)
case of intense movement, is locked.
24 h
Switching On and Off
To switch on the measuring tool, push the On/Off switch 4
0.25 kg
upward so that "I" is indicated on the switch. Immediately af-
ter switching on, the measuring tool sends a laser beam out of
104 x 40 x 80 mm
each exit opening 1.
IP 5X
 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.
 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.
To switch off the measuring tool, push the On/Off switch 4
downward so that "0" is indicated on the switch. When
switching off, the levelling unit is locked.
Setting the Automatic Switch-off
By default, the measuring tool automatically shuts off
20 minutes after being switched on.
The automatic switch-off can be set from 20 minutes to
8 hours. For this, switch the measuring tool on, then immedi-
ately off, and then on again within 4 s. To confirm the change,
all laser beams will flash quickly for 2 s after switching on the
second time.
 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.
When switching on the measuring tool the next time, the auto-
matic switch-off is set to 20 minutes again.
Working with Automatic Levelling
Position the measuring tool on a level and firm support, attach
it to the holder 8 or to the tripod 18.
After switching on, the automatic levelling function automati-
cally compensates irregularities within the self-levelling range
of ±5° (longitudinal axis) and ±3° (lateral axis). The levelling
is finished as soon as the laser points do not move any more.
Bosch Power Tools