Specifications

2 - 8 LI4278 Product Reference Guide

Decode Ranges

Ranges are calculated on Code 39 except where noted.

Table 2-3

LI4278 Decode Ranges

Symbol Density Bar Code Type

Typical Working Ranges

Near Far

4 mil Code 39

in. (10.2 cm) 10.0 in. (25.4 cm)

5 mil Code 39 3.0 in. (7.6 cm) 13.0 in. (33.0 cm)

7.5 mil

Code 39 1.5 in. (3.8 cm) 19.0 in. (48.3 cm)

13 mil 100% UPC-A 1.0 in. (2.5 cm) 31.0 in. (78.7 cm)

20 mil

Code 39 1.0 in. (2.5 cm) 42.0 in. (106.7 cm)

26 mil 200% UPC-A

3.0 in. (7.6 cm) 55.0 in. (140.0 cm)

100 mil (paper) > 20 ft. (> 6 m)

NOTE When reading high density bar codes, users should attempt to read them slightly farther away from the

scanner. Typically a 3 mil Code39 bar code begins reading at 5 in. (12.8cm).