Chapter
5
Operating Instructions
CLV62x Bar Code Scanner
36
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8011965/S345/2008-04-16
Installation
5.3.1
Allocation of the scanning line for the bar code
The main allocation of the scanning line to the bar code on the object depends on the ver-
sion of the bar code scanner (
line scanner
or
grid scanner
).
Fig. 5-3:
Allocation of the scanning line(s) for the bar code and conveyor system
5.3.2
Reading distance to the bar code and aperture angle
α
The maximum distance between the bar code scanner's reading window and the bar code
must not exceed the device-specific thresholds.
The usable length of the scanning line that is used for the evaluation (reading area height)
depends on the reading distance because of the V-shaped deflection of the beam.
Fig. 5-4:
Definition of the reading distance a and the aperture angle
α
In the specification diagrams (
chapter 10.2 Specification diagrams, page 73
) the height of
the reading area is shown in relation to the reading distance a for various resolutions (mod-
ule widths).
Line scanner
Grid scanner
Line scanner
Raster scanner
Reading distance a
Reading distance a
