Decode Ranges - Motorola LI4278 Product Reference Manual

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Decode Ranges

Ranges are calculated on Code 39 except where noted.
LI4278 Decode Ranges
Table 2-3
Symbol Density
4 mil
5 mil
7.5 mil
13 mil
20 mil
26 mil
100 mil (paper)
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).
Bar Code Type
Code 39 4 in. (10.2 cm)
Code 39 3.0 in. (7.6 cm)
Code 39 1.5 in. (3.8 cm)
100% UPC-A 1.0 in. (2.5 cm)
Code 39 1.0 in. (2.5 cm)
200% UPC-A 3.0 in. (7.6 cm)
Typical Working Ranges
Near Far
10.0 in. (25.4 cm)
13.0 in. (33.0 cm)
19.0 in. (48.3 cm)
31.0 in. (78.7 cm)
42.0 in. (106.7 cm)
55.0 in. (140.0 cm)
> 20 ft. (> 6 m)