Imager Decode Ranges - Motorola MC9500-K User Manual

4 - 8 MC9500-K Mobile Computer User Guide

Imager Decode Ranges

The decode ranges provide the decode distances for bar codes of specified densities.
decode ranges and
element width (or "symbol density") is the width in mils of the narrowest element (bar or space) in the symbol. The
maximum usable length of a symbol at any given range is shown below.
Note: Typical performance at 73°F (23°C) on high
quality symbols in normal room light.
1.6
6.67 mil PDF417
2.9
7.5 mil Code 39
*
10 mil PDF417
*
1.1
*
2.3
*
In.
0
cm
0
* Minimum distance determined by symbol length and scan angle.
MC9500-K Imager Decode Ranges
Figure 4-8
Table 4-2 on page 4-9 lists the scan ranges for the selected bar code densities. The minimum
5 mil Code 39
10.1
9.6
13 mil (100% UPC)
15 mil PDF417
14.2
15 mil Data Matrix
11.9
20 mil Code 39
5 10 15
12.7 25.4 38.1
Depth of Field
cm
in.
9 22.9
11.4
4.5
0 0
4.5 11.4
9 22.9
24.2
20 25
50.8 63.5
Figure 4-8 shows the imager
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