Symbol SE 2223, Руководство по интеграции

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3-4
SE 2223/3223 Scan Engine Integration Guide
SE 2223 Scanning Specifications
SE 2223 1-D Decode Zone
Figure 3-1. SE 2223 1-D Decode Zone
The decode zone is a function of various symbol characteristics including density, print
contrast, wide to narrow ratio and edge acuity. Scanner is in horizontal orientation.
In.
cm
0
40 mil Minimum Element Width
55 mil Minimum Element Width
32.0
Depth of Field
25.0
Note: Typical performance at 68˚F (20˚C)
on high quality symbols in normal room light.
Vcc = 5V
5 10 15 20 25
0 12.7 25.4 38.1 50.8 63.5
7.5 mil
20.0
6 mil
2.5 8.0
2.5 6.0
30
76.2
35
88.9
20 mil Minimum Element Width
0
In. cm
W
i
d
t
h
o
f
F
i
e
l
d
0
2.5
5
7.5
2.5
5
7.5
5.1
10.1
15.2
5.1
10.1
15.2
10
25.4
10 25.4
SE 2223
*
* Minimum distance determined by symbol length and scan angle.