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– LED direction indicators (LED): The 3 LED direction
indicators (2), (4) and (3) can be adjusted with regard to
their brightness or switched off. The LEDs light up in their
selected setting.
– Display lighting (LIT): The display lighting can be
switched on (green LED lights up) or switched off (red
LED lights up).
– Memory function for last reception (MEM): The indic-
ator for the direction in which the laser beam has left the
reception area can be switched on (green LED lights up)
or switched off (red LED lights up).
– Centre functions (CF/CL) (LR 65 G): You can choose
between CenterFind (CF) mode and CenterLock (CL)
mode. The current mode appears in the text display (e).
With the exception of the setting for the display lighting, all
settings are saved when the laser receiver is switched off.
Functions
CenterFind mode (see figure C)
In CenterFind mode, the rotary laser automatically attempts
to align the laser beam to the centre line of the laser receiver
by moving the rotation head up and down.
If the rotary laser is in the horizontal position, the laser
beam can be aligned in relation to the X-axis of the rotary
laser, to the Y-axis or to both axes at the same time (see "In-
clination determination with CenterFind mode (see
figure D)", page 19). If the rotary laser is in the vertical po-
sition, only alignment to the Y-axis is possible.
Start CenterFind mode:
Position the rotary laser and laser receiver so that the laser
receiver is situated in the direction of the X-axis or the Y-axis
of the rotary laser. Align the laser receiver so that the re-
quired axis is at a right angle to the reception area (1).
If the laser beam is aligned to both axes, then place a laser
receiver connected to the rotary laser in the direction of the
X- and Y-axis respectively. Each laser receiver must be situ-
ated within the pivoting range of ±8.5 % of the rotary laser.
Switch on the rotary laser in rotational operation.
LR 65 G: In the settings menu, the centre function must be
put in CenterFind (CF) mode. When aligning to two axes of
the rotary laser, this applies to both laser receivers.
Bosch Power Tools
To start the CenterFind mode for the X‑axis, either press
and hold the CenterFind (17) mode button, or press and
hold the CenterFind (17) mode button, together with the
X‑axis button (16).
To start the CenterFind mode for the Y-axis, press and hold
the CenterFind (17) mode button, together with the Y‑axis
button (15).
Should the laser beam be aligned to both axes at the same
time, CenterFind mode must be started separately on each
laser receiver.
Following the start of CenterFind mode, the rotary head on
the rotary laser moves up and down. During the search pro-
cess, CFX (X‑axis) or CFY (Y‑axis) appears in the text
display (e).
If the laser beam hits the reception area (1) at the height of
the centre line of the laser receiver, the centre line
indicator (h) will appear and XOK (X axis) and YOK (Y axis)
will appear in the text display (e). The value of the incline
that is found is displayed on the rotary laser. CenterFind
mode will be ended automatically.
Cancelling CenterFind mode:
To cancel the CenterFind mode, press and hold the
CenterFind mode button (17).
Troubleshooting:
If the laser beam was unable to find the centre line of the
laser receiver within the pivoting range, ERR appears in the
text display (e) and all LED direction indicators light up.
Press any button on the rotary laser and one on the laser re-
ceiver to close the error messages. Reposition the rotary
laser and laser receiver so that the laser receiver is situated
within the pivoting range of ±8.5 % of the rotary laser. En-
sure that the laser receiver is aligned to the X-axis or Y-axis
so that the laser beam can pass through the reception
area (1) horizontally. Then restart the CenterFind mode.
LR 65 G: If both axes of the rotary laser should be aligned to
a laser receiver, the same centre function must be set on
both laser receivers. A combination of CenterFind mode
and CenterLock mode is not possible.
If CenterLock mode is already set on one axis
and CenterFind mode is started on the other axis, ERR
and CL will appear alternately in the text display (e).
Select CenterFind mode on both laser receivers and re-start
the function.
Inclination determination with CenterFind mode (see
figure D)
Using CenterFind mode, the inclination of a surface can be
measured up to max. 8.5 %. To do this, set up the rotary
laser at one end of the inclined surface in a horizontal posi-
tion on a tripod. The X- or Y-axis of the rotary laser must be
aligned with the inclination to be determined. Switch on the
rotary laser and allow it to level in.
Secure the laser receiver to a measuring rod (25) with the
holder. Place the measuring rod near to the measuring tool
(at the same end of the inclined surface). Align the height of
the laser receiver on the measuring rod so that the laser
beam of the rotary laser is indicated as "centred" ➊.
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1 609 92A 7M6 | (12.05.2022)
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