Motorola MC3000 Especificaciones Pagina 191

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Using the Interfaces A - 9
Table A-5
MC3000S Imager Decode Ranges
Symbol Density/
Bar Code Type/W-N Ratio
Bar Code Content/
Contrast (Note 1)
Ranges
Near Far
5.0 mil
Code 39; 2.5:1
ABCDEFGH+
80% MRD
4.5 in
11.43 cm
6.5 in
16.51cm
7.5 mil
Code 39; 2.5:1
ABCDEF
80% MRD
3.3 in
8.38 cm
10.7 in
27.18 cm
UPC A 012345678905
80% MRD
2.5 in
6.35 cm
14.2 in
36.07cm
20 mil
Code 39; 2.2:1
123
80% MRD
2.8 in
7.11 cm
(Note 2)
18.9 in
48.01 cm
PDF417 6.67 mil
Code 39; 2.2:1
123
25% MRD
5.3 in
13.46 cm
(Note 2)
7.7 in
19.56 cm
PDF417 10 mil
Code 39; 2.2:1
AB
80% MRD
4.3 in
10.92 cm
(Note 2)
11.1 in
28.19 cm
PDF417 15 mil
Code 39; 2.2:1
CD
80% MRD
3.8 in
9.65 cm
(Note 2)
14.4 in
36.58 cm
Notes:
1. CONTRAST measured as Mean Reflective Difference (MRD) at 650 nm.
2. Near ranges on lower densities are largely dependent upon the width of the bar code and the scan angle.
3. Working range specifications: Photographic quality symbols, pitch = 10°, skew = 0°, roll = 0°, ambient light < 150
ft. candles, and temperature = 23 •C
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