Chapter 10 Operating Instructions
CLV640 Bar Code Scanner
84 © SICK AG · Division Auto Ident · Germany · All rights reserved 8011975/0000/2008-04-14
Technical data
10.3 Specification diagrams
Tab. 10-3: Reading conditions for all specification diagrams
Fig. 10-1: Meaning of selection
1, 2 and 3 in the reading area diagram related to depth of focus diagram.
Observing the reading area diagram (see figure) of the CLV640 of a module width at a focal
position from the top, the selections
1, 2 and 3 can be transferred to the depth of focus
diagram for this module width as follows. Therefore, the depth of focus diagram consists of
a slice-shaped sequence of many reading area diagrams along the focal position.
Test code Code 39/ITF
Print ratio 2:1
Print contrast > 90 %
Tilt ±10°
Ambient light < 2 000 lx
Good read rate > 75 %