Operating Instructions
Chapter
10
CLV 490 Bar Code Scanner
8 008 796/0000/25-06-2002
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-17
Appendix
Fig. 10-15: CLV 490-2010/-2011 (High density): Min. and Max. reading distance (measured radially) as a function of the focus
position at a resolution of 0.25 mm and an aperture angle of
α
= 40
°
1800
1900
2000
2100
2200
1700
1600
1500
500
700
900
1100
1300
1500
1700
1900
2100
1400
1300
1200
1100
1000
900
800
700
600
500
400
Line scanner (front reading window):
CLV 490-2010/-2011
Reading distance [mm]
max. reading distance
Resolution:
0.25 mm
Aperture angle:
40
°
Focus position [mm]
min. reading distance
Resolution 0.2 mm:
Depth of field reduced by 20 % compared
to depth of field at resolution 0.25 mm
(typical values)
Reading ranges typical values!
Reading conditions:
see
Characteristics field scanning frequency/
reading distance:
see