Hd/Dpm Near Focus - Motorola Symbol MS4404 Integration Manual

HD/DPM Near Focus

The decode zone for the Near Focus Symbol MS440X HD and DPM versions is shown in
values are shown. Table 4-7
minimum element width (or "symbol density") is the width in mils of the narrowest element (bar or space) in the
symbol.
Note: Typical perf ormance a t 73°F (23°C)
on high quality symb
Vcc = 3.3V
MS440X
DPM
*
*
0 1
In.
cm
0
2.5
* Minimum distance det e r mined by symbol length and sc a n angle .
HD/DPM Near Focus Decode Zone
Figure 4-8
NOTE The decode zone performance for DPM shown above is based on controlled conditions and is to be used
as a guide only. Decoding is affected by mark quality, type, surface, and grade as well as ambient lighting
conditions.
lists the typical and guaranteed distances for selected bar code densities. The
ols in nor mal room light.
4 mil PDF417
2.4
5 mil
4.0
1.7
6.67 mil PDF417
2.0
7.5 mil
1.6
10 mil PDF417
1.7*
13 mil (100% UPC)
2.2
15 mil PDF417
20 mil
2 3 4
10.2 7.6 10.2
Depth of Field
Symbol MS4404/MS4407 Specifications 4 - 15
4.5
7.0
6
5 7
15.2 20.3
17.8
12.7
Figure 4-8. Typical
in.
cm
3.0 7.6
W
i
1.5
3.8
d
t
h
o
0 0
f
F
i
e
1.5
3.8
l
d
3.0 7.6
8