Appendix A — EA11 Imager
64 ED40 Decode Board Integration Guide
Minimum Reading Distances
EA11 Standard Minimum Reading Distances: These distances are measured in a dark
environment (0 lux).
Symbology Density Minimum Distance Maximum Distance
Code 39
0.125 mm (5 mils) 7.4 cm (2.9 in) 12.4 cm (4.8 in)
0.20 mm (8 mils) 4.2 cm (1.6 in) 21.2 cm (8.3 in)
0.25 mm (10 mils) 3.5 cm (1.4 in) 25.5 cm (9.9 in)
0.5 mm (20 mils) 5.1 cm (2 in) 40.8 cm (15.9 in)
UPC/EAN 100% 0.33 mm (13 mils) 5 cm (2 in) 30 cm (11.7 in)
DataMatrix
0.19 mm (7.5 mils) 6.5 cm (2.5 in) 16.6 cm (6.5 in)
0.25 mm (10 mils) 5 cm (2 in) 21 cm (8.2 in)
0.38 mm (15 mils) * 28 cm (10.9 in)
PDF417 0.16 mm (6.6 mils) 6.3 cm (2.5 in) 14.2 cm (5.5 in)
0.25 mm (10 mils) 4.7 cm (1.8 in) 22 cm (8.6 in)
0.38 mm (15 mils) 5.1 cm (2 in) 33.8 cm (13.2 in)
8"
4"
6"
2"
0"
2"
4"
in
6"
8"
10"
10"
cm
10
5
0
5
10
15
20
20
15
25
25
0 5040302010
0" 16"12"8"4"
PDF417 6.6 mils
0.125mm / 5mils
0.25 mm / 10 mils
0.5 mm / 20 mils
Data Matrix 7.5 mils
100% contrast UPC EAN
Note: * Minimum distances depend on the length of the bar code.
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