Laser Decode Ranges - Symbol MC3000 User Manual

A-6 MC3000 Integrator Guide

Laser Decode Ranges

The decode ranges provide the decode ranges for barcodes of specified densities.
A-4 on page -7 lists the scan ranges for the selected bar code densities. The minimum 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)
MC3000
in.
cm
on high quality symbols.
5 mil
4.9
2.0
7.5 mil
1.6 7.9
10 mil
10.8
1.2
UPC A
1.3 12.7
20 mil
1.4
40 mil
2.4
55 mil
3.4
15
0 5 10
38.1
0 12.7 25.4
Depth of Field
Figure A-3. MC3000 Laser Decode Ranges
Figure A-3 shows the laser decode ranges and
17.9
26.4
30.6
20 30
25
50.8 76.2
63.5
Table
in. cm
12 30.48
9 22.86
6 15.25
W
i
d
3 7.62 t
h
o
0
0
f
F
3 7.62 i
e
l
d
6 15.25
9 22.86
12 30.48
35
88.9