Chapter 3 — Configuring the Computer

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 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

Near Distance

Far Distance

 

 

 

33.92 cm/ 12.96"

MaxiCode

35 mil

4.98 cm/ 1.96"

 

 

 

16.41 cm/ 6.46"

Data Matrix

15 mil

9.30 cm/ 3.66"

PDF417

10 mil

7.77 cm/ 3.06"

22.76 cm/ 8.96"

 

8 mil

8.28 cm/ 3.26"

20.22 cm/ 7.96"

 

6.6 mil

11.33 cm/ 4.46"

15.77 cm/ 6.21"

Code 39

15 mil

5.23 cm/ 2.06"

29.87 cm/ 11.76"

 

10 mil

8.03 cm/ 3.16"

23.27 cm/ 9.16"

 

8 mil

8.79 cm/ 3.46"

19.20 cm/ 7.56"

UPC

13 mil

6.25 cm/ 2.46"

31.65 cm/ 12.46"

 

 

 

 

EA11 Standard Minimum Reading Distances with 0.04” Setbacks

Symbology

Density

Minimum Distance

Maximum Distance

 

 

 

12.09 cm/ 4.76"

Code 39

0.125 mm/ 5 mil

7.26 cm/ 2.86"

 

0.20 mm/ 8 mil

3.96 cm/ 1.56"

20.98 cm/ 8.26"

 

0.25 mm/ 10 mil

3.45 cm/ 1.36"

25.04 cm/ 9.86"

 

0.50 mm/ 20 mil

4.98 cm/ 1.96"

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

3.71 cm/ 2.46"

16.41 cm/ 6.46"

 

0.254 mm/ 10 mil

5.98 cm/ 1.96"

20.73 cm/ 8.16"

 

0.381 mm/ 15 mil

*

27.58 cm/ 10.86"

PDF417

0.168 mm/ 6.6 mil

6.25 cm/ 2.46"

13.87 cm/ 5.46"

 

0.254 mm/ 10 mil

4.47 cm/ 1.76"

21.74 cm/ 8.56"

 

0.381 mm/ 15 mil

4.98 cm/ 1.96"

33.43 cm/ 13.16"

* Minimum distance depends on symbology length and scan angle.

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751G Color Mobile Computer User’s Manual

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Image 56
Intermec 751G Reading Distances, Symbology Density Near Distance Far Distance, Upc, Symbology Density Minimum Distance