Intermec ED40 - Minimum Reading Distances

Appendix C — EA21 Imager
102 ED40 Decode Board Integration Guide
Minimum Reading Distances
These are minimum reading distances measured in the dark (0 lux).
EA21 Minimum Reading Distances
Symbology Density Minimum Distance Maximum Distance
Code 39 0.15 / 6 mils 12 / 4.72 in 18 cm / 7.09 in
0.25 mm / 10 mils 5 cm / 1.97 in 28 cm / 11.02 in
0.5 mm / 20 mils 5 cm / 1.97 in 55 cm / 21.65 in
1 mm / 40 mils 9 cm / 3.54 in 75 cm / 29.53 in
UPC/EAN 100% 0.33 mm / 13 mils 5 cm / 1.97 in 38 cm / 14.96 in
DataMatrix 0.25 mm / 10 mils 12 cm / 4.72 in 22 cm / 8.66 in
0.38 mm / 15 mils 8 cm / 3.15 in 34 cm / 13.39 in
PDF417 0.25 mm / 10 mils 7 cm / 2.75 in 28 cm / 11.02 in
0.38 mm / 15 mils 7 cm / 2.75 in 40 cm / 15.75 in
0"
4"
8"
0
10
20
cm
PDF417 10 mils
0.15mm/6 mils
0.25 mm / 10 mils
0.5 mm / 20 mils
Data Matrix 10 mils
in
0" 32"28"24"20"16"12"8"4"
08070605040302010
100% contrast UPC EAN
12"
16"
30
40
16"
12"
8"
4"
40
30
20
10
Note: Minimum distances depend on the length of the bar code.