Bosch Professional GRL 400 H Manual Original página 16

16 | English
Laser receiver
Relative air humidity max.
Pollution degree according to
IEC 61010-1
Battery
Approx. operating time
Weight according to EPTA-Proced-
ure 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) Dependent on the distance between the laser receiver and the
rotary laser and on the laser class and laser type of the rotary
laser
C) The reception accuracy may be reduced by unfavourable envir-
onmental conditions (e.g. direct sunlight).
D) Only non-conductive deposits occur, whereby occasional tem-
porary conductivity caused by condensation is expected.
For clear identification of your laser receiver, see the serial number
(22) on the type plate.
Laser receiver noise information
The A-weighted sound pressure level of the au-
dio signal is up to 95 dB(A) at 0.2 m away.
Do not hold the laser receiver close to your
ear!
Assembly
Measuring Tool Power Supply
Inserting/changing the batteries
It is recommended that you use alkaline manganese batter-
ies to operate the measuring tool.
To remove the battery compartment (7), turn the locking
mechanism (8) to position . Pull the battery compartment
out of the measuring tool and 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.
Always replace all the batteries at the same time. Only use
batteries from the same manufacturer and which have the
same capacity.
Slide the battery compartment (7) into the measuring tool
and turn the locking mechanism (8) to position .
Take the batteries out of the measuring tool when you
u
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.
1 609 92A 73P | (13.01.2022)
Charge-control indicator
LR 1
When the battery warning (6) flashes red for the first time,
90 %
the measuring tool can still be operated for approx. 2 hours.
D)
2
When the battery warning (6) lights up red continuously, no
further measurements can be taken. The measuring tool
1 × 9 V 6LR61
switches off automatically after 1 minute.
50 h
Power supply of the laser receiver
0.25 kg
Inserting/changing the battery
Alkali-manganese batteries are recommended for the laser
148 × 73 × 30 mm
receiver.
Pull the locking mechanism (12) of the battery compartment
IP65 (dust-proof and
cover outwards and lift up the battery compartment cover
protected against wa-
(23). Insert the battery.
ter jets)
When inserting the batteries, ensure that the polarity is cor-
rect according to the illustration on the inside of the battery
compartment.
When the battery warning (b) first appears on the display
(19), the laser receiver can still be operated for approx.
3 hours.
Take the battery out of the laser receiver when you
u
are not using it for a prolonged period of time. When it
is stored in the laser receiver for longer periods, the bat-
tery can corrode and discharge itself.
Operation
Keep the measuring tool and the laser receiver dry
u
and protect them from direct sunlight.
Do not expose the measuring tool and the laser re-
u
ceiver to extreme temperatures or variations in tem-
perature. For example, do not leave them in a car for ex-
tended periods of time. In case of large variations in tem-
perature, allow the measuring tool and the laser receiver
to adjust to the ambient temperature before putting them
into operation. Before continuing work with the measur-
ing tool, always perform an accuracy check (see "Accur-
acy Check of the Measuring Tool", page 18).
The precision of the measuring tool and the laser receiver
may be compromised if exposed to extreme temperat-
ures or variations in temperature.
Avoid substantial knocks to the measuring tool and
u
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 18).
Keep the work area free from obstacles that could re-
u
flect or obstruct the laser beam. For example, cover
any reflective or shiny surfaces. Do not measure
through panes of glass or similar materials. The meas-
urements may be distorted by a reflected or obstructed
laser beam.
Bosch Power Tools