Work Examples - Bosch GRL Professional 250 HV Notice Originale

OBJ_BUCH-757-005.book Page 33 Thursday, March 4, 2010 1:50 PM
Working with the Measuring Plate (Accessory)
With the measuring plate 34, it is possible to
project the laser mark onto the floor or the laser
height onto a wall.
With the zero field and the scale, the offset or
drop to the required height can be measured
and projected at another location. This elimi-
nates the necessity of precisely adjusting the
measuring tool to the height to be projected.
The measuring plate 34 has a reflective coating
that enhances the visibility of the laser beam at
greater distances or in intense sunlight. The
brightness intensification can be seen only
when viewing, parallel to the laser beam, onto
the measuring plate.
Working with the Measuring Rod (Accessory)
(see figure H)
For checking irregularities or projecting gradi-
ents, it is recommended to use the measuring
rod 27 together with the laser receiver.
A relative millimeter scale (±50 cm) is marked
on the top of the measuring rod 27. Its zero
height can be preset at the bottom of the eleva-
tor column. This allows for direct reading of de-
viations from the specified height.
Bosch Power Tools

Work Examples

Projecting/Checking Heights (see figure B)
Position the measuring tool in the horizontal po-
sition onto a firm support or mount it onto a tri-
pod 26 (accessory).
Working with tripod: Align the laser beam to the
requested height. Project or check the height at
the target location.
30 mm
Working without tripod: Determine the height
difference between the laser beam and the
height at the reference point with help of the
measurment plate 34. Project or check the meas-
ured height difference at the target location.
Parallel Alignment of a Plumb Beam/
Projecting Right Angles (see figure C)
When right angles are to be projected or when
partitions are to be aligned, the plumb beam 9
must be aligned parallel, meaning at the same
distance to a reference line (e.g. a wall).
For this, set up the measuring tool in the vertical
position and position it in such a manner that
the plumb beam runs approximately parallel to
the reference line.
For exact positioning, measure the clearance
between plumb beam and reference line direct-
ly on the measuring tool with help of the meas-
urment plate 34. Measure the clearance be-
tween plumb beam and reference line again as
far away as possible from the measuring tool.
Align the plumb beam in such a manner that it
has the same clearance to the reference line as
when measured directly at the measuring tool.
The right angle to the plumb beam 9 is indicated
by the variable laser beam 6.
Indicating a Plumb Line/Vertical Plane
(see figure D)
To indicate a plumb line or a vertical plane, set
up the measuring tool in the vertical position.
When the vertical plane is supposed to run at a
right angle to a reference line (e.g. a wall), then
align the plumb beam 9 with this reference line.
The plumb line is indicated by the variable laser
beam 6.
English | 33
2 610 A12 916 | (4.3.10)