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MS XX07 Series Integration Guide
MS 2207VHD Decode Zones
The decode zone is a function of various symbol characteristics including density, print
contrast, wide to narrow ratio and edge acurity. Typical values are shown.
page 7-9
and
Table 7-4 on page 7-11
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. To calculate this distance, see
Usable Scan Length Method
MS 2207VHD 1D Decode Zone
Note: Typical performance at 68˚F (20˚C)
on high quality symbols in normal room light.
Vcc = 5V
MS 220XVHD
2.0
1.75
1.5
*
0
In.
cm
0
* Minimum distance determined by symbol length and scan angle.
Figure 7-5. MS 2207VHD 1D Slab/Raster Decode Distances
7-8
list the typical and guaranteed distances for selected
on page 2-11.
4 mil
3.4
5 mil
4.1
6 mil
4.75
7.5 mil
5.25
55 mil
2.5
5
7.5
12.7
25.4
38.1
Depth of Field
15.0
10
12.5
15
50.8
63.5
76.2
Table 7-3 on
Calculating the
In.
cm
W
10 25.4
i
d
15.2
7.5
t
5
10.1
h
2.5
5.1
o
0
0
f
2.5
5.1
F
5
10.1
i
e
7.5
15.2
l
10
25.4
d
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