Bosch GPL 5 C Original Instructions Manual page 22

OBJ_BUCH-847-001.book Page 22 Friday, May 29, 2009 7:50 AM
22 | English
Working with the Measuring Plate (Accessory)
(see figures A–B)
With the measuring plate 16, 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 16 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.
Laser Viewing Glasses (Accessory)
The laser viewing glasses filter out the ambient
light. This makes the red light of the laser appear
brighter for the eyes.
Do not use the laser viewing glasses as
safety goggles. The laser viewing glasses are
used for improved visualisation of the laser
beam, but they do not protect against laser
radiation.
Do not use the laser viewing glasses as
sun glasses or in traffic. The laser viewing
glasses do not afford complete UV protection
and reduce colour perception.
Work Examples
General Information
Always position the measuring tool close to the
surface or edge subject to checking, and allow it
to level in prior to each measurement.
Always measure the distances between laser
beam or laser line and a surface or edge at two
points as far as possible away from each other
(e.g. with the measurment plate 16).
1 609 929 S06 | (29.5.09)
Checking Plumb and Horizontal Lines
(see figures C–D)
For checking plumb lines (e.g. surfaces), select
one of the operating modes with plumb crosses.
At two points, measure the distance between
the cross point of the laser lines and the surface
to be checked. When both distances are equal,
the surface is vertical.
For checking horizontal lines, check the dis-
tance between a horizontal point beam and the
surface to be checked in the same manner.
Projecting Heights (see figures E–F)
If possible, mount the measuring tool to the
tripod 17 or the holder 13. Adjust the tripod or
the universal holder roughly before switching on
the measuring tool. Align a point beam to the
requested height. Turn the measuring tool to the
target location without changing its height and
project or check the height at the target location.
Indicating and Checking Right Angles
(see figures G–H)
For checking right angles in the horizontal plane
(e.g. between two surfaces), select one of the
operating modes with three laser points. Align
the measuring tool in such a manner that the
distance between the surface A and the first
point beam is equal at two points. Now, check
the distance between surface B and the second
point beam at two points. When the distance is
also equal, the surfaces are at a right angle.
For checking right angles in a vertical plane,
select one of the operating modes with plumb
crosses and check, if surface A is vertical and
surface B is horizontal.
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