5 - 8
Symbol MiniScan MSXX07 Series Integration Guide
Usable Scan Length
The decode zone is a function of various symbol characteristics including density, print contrast, wide-to-narrow
ratio, and edge acuity. Consider width of decode zone at any given distance when designing a system.
Calculating the Usable Scan Length Method on page 2-8
describes how to calculate the usable scan length. The
scan angle is provided in
.
Table 5-3
. Symbol MS1207WA Decode Distances
Symbol Density/
p/n / Bar Code Type/
W-N Ratio
Bar Code Content/
Contrast
1
Typical Working Ranges
Guaranteed Working
Ranges
Near
Far
Near
Far
5 mil
64-17453-01
Code 39; 2.5:1
ABCDEFGH
80% MRD
1.0 in.
2.54 cm
4.0 in.
10.16 cm
1.2 in.
3.05 cm
3.0 in.
7.62 cm
7.5 mil
64-17452-01
Code 39; 2.5:1
ABCDEF
80% MRD
0.6 in.
1.52
cm
7.2 in.
8.29 cm
0.9 in.
2.29
cm
6.0 in.
15.24 cm
13 mil
64-05303-01
100% UPC
1234567890
80% MRD
0.6 in.
1.52 cm
11.0 in.
27.94 cm
0.9 in.
2.29 cm
9.0 in.
22.86 cm
20 mil
60-01429-01
Code 39; 2.2:1
123
80% MRD
Note 2
15.0 in.
38.10 cm
Note 2
13.0 in.
33.02 cm
40 mil
64-17457-01
Code 39; 2.2:1
AB
80% MRD
Note 2
19.0 in.
48.26 cm
Note 2
17.0 in.
3.18 cm
55 mil
64-17458-01
Code 39; 2.2:1
CD
80% MRD
Note 2
24.0 in.
60.96 cm
Note 2
22.0 in.
55.88 cm
1. Contrast measured as Mean Reflective Difference (MRD) at 670 nm.
2. Near ranges on lower densities (not specified) largely depend on the width of the bar code and
the scan angle.
3. Working range specifications at ambient temperature 23 °C.
Содержание Symbol MiniScan MS1207FZY
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