Motorola Symbol MiniScan MS1207FZY, Integration Manual

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Symbol MS3207 Specifications 8 - 9
Symbol MS3207 Decode Zones
The decode zone is a function of various symbol characteristics including density, print contrast, wide to narrow
ratio and edge acuity. Typical values appear.
Table 8-3 on page 8-10 and Table 8-4 on page 8-12 list the typical and
guaranteed distances for 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 appears below. To calculate this distance, see
Calculating the Usable Scan Length Method on page
2-8 .
Symbol MS3207 Omnidirectional Decode Distances
Figure 8-5
Symbol MS3207 Omnidirectional Decode Zone (Typical)
Depth of Field
1.00
.25
In.
cm
0
20 mil
Depth of Field
12.5
2.5 5 7.5 10 12.5
0 12.7 25.4 38.1 50.8
63.5
80% UPC
12.5
6 mil
1.00
6.5
.25
3.25
100% UPC
0
cm
W
i
d
t
h
o
f
F
i
e
l
d
0
2.5 6.35
5 12.7
12.7
1.5
1.75
* Minimum distance determined by symbol length and scan angle.
2.5
5
6.35
in.
Note: Typical performance at 68˚F (20˚C)
on high quality symbols in normal room light.
Vcc = 5V