Bosch GLL 150 E Operating/Safety Instructions Manual page 13

is lit (fig. 3)(with volume on, a slightly faster
audio tone is heard). When the line is level,
the level laser line indicator will be lit (fig. 4)
(with volume on, a rapid audio tone will be
heard).
The design of the LR 3 detector is an innovation
to the market. The detector can be switched
between standard and long range modes
enabling extended distance capabilities for the
GLL 150 E and reducing the issue with "scatter"
associated with close in use of line lasers.
When used with the GLL 150 E exterior laser,
the LR 3 receiver enables the instrument to be
used in a work area up to 530 feet (160 m) in
diameter. In standard mode the GLL 150 E and
LR 3 combination will have the elliptical pattern
typical of cone lasers with a maximum range
radius of 196 feet (60 m) along the X-axis and
a minimum range raduis of 65 feet (20 m) along
the Y-axis. Long range mode enables a 265
feet (80 m) circular radius working area.
The area designated by the DASHED circle is
the work area in LONG RANGE MODE.
The area designated by the DOTTED ellipsoid
is the work area in STANDARD RANGE
MODE.
If the detector is not struck by a laser beam
after 5 minutes, the detector will automatically
shut itself off to preserve battery life. Turn the
instrument back on using the power button.
Extended Range Function
The LR 3 receiver defaults to and should be
used in its standard operating mode for most
leveling projects. If the operator is having
difficulty receiving a reading at extended
distances (greater than 65 ft or 20 meters),
indicated by difficulty in locating the center bar
then the extended range button (fig. 1 #10) on
the detector can be pressed and the LED will
be illuminated (fig. 1 #9).
Close Proximity Use
When using the LR 3 in close proximity to the
laser (3ft to 15ft) care must be taken due to the
high sensitivity of the LR 3 and the scatter from
the cone, glass, dust on glass, and surrounding
objects. Close proximity detection should be
validated against reflections and scatter by
ensuring that both the directional arrows are on
either side of the center bar (see fig 3 thru 5).
This can be done by moving the LR 3 up and
down relative to the center bar to locate the
arrows. Do not use the detector closer than 3 ft
from the laser.
X-Axis
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