User's Manual Part 1

Chapter 1 — Using the Computer
6 PRELIMINARY - CN3 Mobile Computer User’s Manual
Reading Distances
Typical reading distances are done in an office environment using office
lights (4 lux). Minimum distances are measured in the dark (0 lux). Both
reading distances are provided in respective scan engine integration guides.
Contact your Intermec representative for more information.
The minimum standard reading distances for CN3 Computers built with
integrated scan engines are shown on the next pages. When correctly
mounted, an exit window reduces reading distances by about 4%.
EA11 Standard Minimum Reading Distances with 0.04” Setbacks
Symbology Density Minimum Distance Maximum Distance
Code 39 0.125 mm/ 5 mil
0.20 mm/ 8 mil
0.25 mm/ 10 mil
0.50 mm/ 20 mil
7.26 cm/ 2.86”
3.96 cm/ 1.56”
3.45 cm/ 1.36”
4.98 cm/ 1.96”
12.09 cm/ 4.76”
20.98 cm/ 8.26”
25.04 cm/ 9.86”
40.28 cm/ 15.86”
UPC/EAN 0.33 mm/ 13 mil 4.98 cm/ 1.96” 29.92 cm/ 11.66”
Datamatrix 0.191 mm/ 7.5mil
0.254 mm/ 10 mil
0.381 mm/ 15 mil
3.71 cm/ 2.46”
5.98 cm/ 1.96”
*
16.41 cm/ 6.46”
20.73 cm/ 8.16”
27.58 cm/ 10.86”
PDF417 0.168 mm/ 6.6 mil
0.254 mm/ 10 mil
0.381 mm/ 15 mil
6.25 cm/ 2.46”
4.47 cm/ 1.76”
4.98 cm/ 1.96”
13.87 cm/ 5.46”
21.74 cm/ 8.56”
33.43 cm/ 13.16”
* Minimum distance depends on symbology length and scan angle.
8"
4"
6"
2"
0"
2"
4"
in
6"
8"
10"
10"
cm
1
0
5
0
5
1
0
15
2
0
2
0
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