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If the measuring tool is mounted on the rotating
platform (12), you can use the fine adjustment screw (11)
to align vertical laser lines precisely with reference points.
Operation
Starting Operation
Protect the measuring tool from moisture and direct
u
sunlight.
Do not expose the measuring tool to any extreme tem-
u
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 9).
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
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 9).
Switch the measuring tool off when transporting it.
u
The pendulum unit is locked when the tool is switched off,
as it can otherwise be damaged by big movements.
Switching On/Off
To switch on the measuring tool, slide the on/off switch (7)
to the " On" position (for working with the pendulum lock)
or to the "
On" position (for working with automatic level-
ling). The status display (16) lights up. Immediately after
switching on, the measuring tool sends a horizontal laser line
out of the front outlet aperture (1).
Do not direct the laser beam at persons or animals and
u
do not stare into the laser beam yourself (even from a
distance).
To switch off the measuring tool, slide the on/off switch (7)
to the "Off" position. The status indicator (16) goes out. The
pendulum unit is locked when the tool is switched off.
Never leave the measuring tool unattended when
u
switched on, and ensure the measuring tool is
switched off after use. Others may be blinded by the
laser beam.
If the maximum permitted operating temperature of 45 °C is
exceeded, the tool shuts down to protect the laser diode.
Once it has cooled down, the measuring tool is operational
again and can be switched back on.
Deactivating the automatic shut-off function
The measuring tool automatically switches itself off after
30 min of operation.
To deactivate the automatic shut-off, hold down either the
vertical mode button (18) or the horizontal mode
button (19) for 3 seconds when switching on the measuring
1 609 92A 4HR | (11.02.2021)
tool. The laser beams will flash briefly after 3 seconds if the
automatic shut-off function is deactivated.
To activate the automatic shut-off function, switch the meas-
uring tool off and on again (without holding down a button).
Operating Modes
The measuring tool has several operating modes, which you
can switch between at any time. The horizontal and vertical
modes can be switched on and off independently of each
other. After switching on, the measuring tool is in horizontal
mode.
All operating modes can be selected with both automatic lev-
elling or the pendulum lock.
Horizontal mode (see figure B)
In horizontal mode, the measuring tool sends out a hori-
zontal laser line pointing forwards.
To switch the horizontal laser line off or on, press the hori-
zontal mode button (19).
Vertical mode and plumb point (see figures C–E)
The measuring tool has multiple vertical modes:
– Vertical laser line forwards
– Vertical laser line forwards and to the right-hand side
– Vertical laser line forwards and backwards
– Vertical laser lines to all four sides
A plumb point is additionally projected downwards in ver-
tical mode.
To switch the vertical mode on/off or to change the vertical
mode, press the vertical mode button (18) repeatedly until
the required operating mode is reached.
Receiver Mode
Receiver mode must be activated when working with the
laser receiver (22), regardless of which operating mode is
selected.
In receiver mode, the laser lines flash at a very high fre-
quency, enabling them to be detected by the laser receiver
(22).
To switch on receiver mode, press the receiver mode
button (17). The receiver mode indicator (15) lights up red.
When receiver mode is switched on, the laser lines are less
visible to the human eye. Therefore, switch receiver mode
off by pressing the receiver mode button (17) again to work
without a laser receiver. The receiver mode indicator (15)
will go out.
Automatic Levelling
Working with automatic levelling
Position the measuring tool on a level, firm surface or attach
it to the rotating platform (12).
For work with automatic levelling, slide the on/off switch (7)
to the "
On" position.
The automatic levelling function automatically compensates
irregularities within the self-levelling range of ±3°. The level-
ling is finished as soon as the laser lines stop moving.
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