Symbol Technologies MC3000 - Manual (Page 188)

MC3000 Integrator Guide A-6
Laser Decode Ranges
The decode ranges provide the decode ranges for barcodes of specified densities. Figure A-4 shows the laser decode ranges and Table
A-5 on page A-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.
Figure A-4. MC3000 Laser Decode Ranges
in.
cm
MC3000
5 mil
4.9
7.5 mil
10 mil
7.9
10.8
12.7
17.9
26.4
20 mil
40 mil
30.6
55 mil
W
i
d
t
h
o
f
F
i
e
l
d
Depth of Field
Note: Typical performance at 73˚ F (23˚ C)
on high quality symbols.
0
0 5
12.7
10
25.4
15
38.1
1.3
0
3
6
9
0
7.62
15.25
22.86
7.62
15.25
3
6
12 30.48
in. cm
22.86 9
30.48 12
1.2
1.6
2.0
20
50.8
25
63.5
30
76.2
35
88.9
UPC A
1.4
2.4
3.4