Reading Distances - Intermec 751G User Manual

Chapter 3 — Configuring the Computer

Reading Distances

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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 751Gs built with integrated
scan engines are shown below. When correctly mounted, an exit window
reduces reading distances by about 4%.
2D Area Imager Reading Distances with 0.04" Setbacks
Symbology Density
MaxiCode 35 mil
Data Matrix 15 mil
PDF417 10 mil
8 mil
6.6 mil
Code 39 15 mil
10 mil
8 mil
UPC 13 mil
EA11 Standard Minimum Reading Distances with 0.04" Setbacks
Symbology Density
Code 39 0.125 mm/ 5 mil
0.20 mm/ 8 mil
0.25 mm/ 10 mil
0.50 mm/ 20 mil
UPC/EAN 0.33 mm/ 13 mil
Datamatrix 0.191 mm/ 7.5mil
0.254 mm/ 10 mil
0.381 mm/ 15 mil
PDF417 0.168 mm/ 6.6 mil
0.254 mm/ 10 mil
0.381 mm/ 15 mil
* Minimum distance depends on symbology length and scan angle.
Near Distance Far Distance
4.98 cm/ 1.96" 33.92 cm/ 12.96"
9.30 cm/ 3.66" 16.41 cm/ 6.46"
7.77 cm/ 3.06" 22.76 cm/ 8.96"
8.28 cm/ 3.26" 20.22 cm/ 7.96"
11.33 cm/ 4.46" 15.77 cm/ 6.21"
5.23 cm/ 2.06" 29.87 cm/ 11.76"
8.03 cm/ 3.16" 23.27 cm/ 9.16"
8.79 cm/ 3.46" 19.20 cm/ 7.56"
6.25 cm/ 2.46" 31.65 cm/ 12.46"
Minimum Distance Maximum Distance
7.26 cm/ 2.86" 12.09 cm/ 4.76"
3.96 cm/ 1.56" 20.98 cm/ 8.26"
3.45 cm/ 1.36" 25.04 cm/ 9.86"
4.98 cm/ 1.96" 40.28 cm/ 15.86"
4.98 cm/ 1.96" 29.92 cm/ 11.66"
3.71 cm/ 2.46" 16.41 cm/ 6.46"
5.98 cm/ 1.96" 20.73 cm/ 8.16"
* 27.58 cm/ 10.86"
6.25 cm/ 2.46" 13.87 cm/ 5.46"
4.47 cm/ 1.76" 21.74 cm/ 8.56"
4.98 cm/ 1.96" 33.43 cm/ 13.16"
751G Color Mobile Computer User's Manual