Symbol SE 2223, Руководство по интеграции

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4-4
SE 2223/3223 Scan Engine Integration Guide
SE 2223VHD Scanning Specifications
SE 2223VHD 1-D Decode Zone
Figure 4-1. SE 2223VHD 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
7.5 mil
55 mil
16.0
Depth of Field
6.5
Note: Typical performance at 68˚F (20˚C)
on high quality symbols in normal room light.
Vcc = 5V
2.5 5 7.5 10 12.5
0 12.7 25.4 38.1 50.8 63.5
Front of
Chassis
5 mil
6.0
4 mil
2.75 5.5
3.25 4.75
15
76.2
17.5
88.9
6 mil
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
2.75
2.5
*
* Minimum distance determined by symbol length and scan angle.