Bosch GLR500 Mode D'emploi page 15

The reception lens 26 and the laser beam outlet
27 must not be covered when taking
a measurement.
The rangefinder must not be moved while taking
a measurement (except for continuous
measurements, minimum/maximum
measurements and when in stake-out mode).
Therefore, whenever possible, place the
rangefinder against or on the measuring points.
Influence Effects on the Measuring Range
The measuring range depends upon the light
conditions and the reflection properties of the
target surface. For improved visibility of the laser
beam when working outdoors and when the
sunlight is intense, use the laser viewing glasses
30 (accessory) and the laser target plate 31
(accessory), or shade off the target surface.
Influence Effects on the Measuring Result
Due to physical effects, faulty measurements are
possible when measuring on different surfaces.
Included here are:
–Transparent surfaces (e.g., glass, water),
–Reflecting surfaces (e.g., polished metal, glass),
–Porous surfaces (e.g., insulation materials),
–Structured surfaces (e.g., roughcast,
natural stone).
If required, use the laser target plate 31
(accessory) on these surfaces.
Furthermore, faulty measurements are also
possible when sighting inclined target surfaces.
Also, air layers with varying temperatures or
indirectly received reflections can affect the
measured value.
Measuring with the Extension Pin
(see figures B, C, F and G)
The extension pin 18 is suitable for measuring
out of corners (diagonal within a space) or from
hard to reach areas, such as from roller-
shutter rails.
Push on the extension pin latch 1 to fold it in or
out, or change its position.
For measurements starting from outer corners, fold
the extension pin aside; for measurements from
the rear edge of the extension pin on, fold it out to
the rear.
Operating Instructions
Set the corresponding reference point for
measurements with the extension pin by pushing
button 8 (for measurement with extension pin
aside, set to measuring from the rear edge of the
rangefinder).
The vial level 14 allows for simple leveling of the
rangefinder. This allows for easier sighting of target
surfaces, especially over longer distances. In
combination with the laser beam, the spirit level 14
is not suitable for leveling.
The sighting line through the optical sight and the
laser beam run parallel to each other. This allows
for precise sighting over long distances, when the
laser dot is no longer visible with the naked eye.
For sighting, look through the viewfinder of the
optical sight 10. Take care that the optical sight
window 25 is not obstructed and clean.
Note: For close vicinities, the actual and the
displayed target point are not identical.
With the alignment aid 24, sighting over larger
distances is a lot easier. For this, look alongside
the alignment aid on the side of the rangefinder.
The laser beam runs parallel to this sighting line.
The use of a tripod (not included) is particularly
advisable for larger distances because of the
steadiness it provides.
The rangefinder tool can be screwed onto a
commercially available tripod using the 1/4"
thread 21 on the bottom side of the housing.
Set the corresponding reference point for
measurement with a tripod by pushing button 8
(the reference level is the center of the thread).
-15-
Aligning with the Spirit Level
Sighting with the Optical Sight
(GLR825) (see figure N)
Sighting with the Alignment Aid
(see figure O)
Working with the Tripod
(Accessory)