SICK ICR 84x, Руководство по эксплуатации

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Operating instructions Chapter 4
ICR 84x Image Code Reader
Installation
8 010 961/0000/10-05-2005
©
SICK AG · Division Auto Ident · Germany · All rights reserved
4-5
Angular alignment of the ICR
The alignment of the ICR is optimum when the code is in the center of the reading area
( Fig. 4-3 ). All possible reading angles that can occur between the reading area and the code
must be taken into consideration ( Fig. 4-5 and Table 4-2 ).
The following applies for bar codes and 2-D codes (DataMatrix ECC 200) when
reading with omni-directional decoder:
The following applies for bar codes when reading with standard/SMART decoder:
Note The length of readable bar code is reduced with respect to the decodable length as a result
of the distance-dependent dimensions of the reading area (surface) (see examples in
Table 9-2, Page 9-2 ).
Fig. 4-5: Reading angles between the reading area and the code
β
α
γ
α:
Azimuth angle (tilt)
β:
Inclination angle (pitch)
γ:
Rotation angle (skew)
Reading
distance
Reading
range
Angle Limit value
Azimuth
α
(tilt) 360
°
Incline
β
(pitch) Max.
±
45
°
(depending on the cell size and symbol size)
Rotation
γ
(skew) Max.
±
45
°
(depending on the cell size and symbol size)
Table 4-1: Permissible reading angle between the reading area and the bar code/2-D code when
reading with omni-directional decoder
Angle Limit value
Azimuth
α
(tilt) Max.
±
45
°
(in scanning axis and in focus position 100 mm (3.94 in) for
module width 0.2 to 0.5 mm (7.9 to 19.7 mil))
Incline
β
(pitch) Max.
±
45
°
(depending on the module width)
Rotation
γ
(skew) Max.
±
45
°
(depending on the module width)
Table 4-2: Permissible reading angles between the reading area and bar code when reading with
standard/SMART decoder