3-12
SE4400 Integration Guide
Decode Distances in Darkness
Table 3-5. SE4400-E000E Decode Distances in Darkness
Symbol Density/
Bar Code Type
Bar Code
Content/
Contrast
Note 2
Focus
Position
Typical Working
Ranges
Near
Far
5.0 mil
Code 39
ABCDEFGH
80% MRD
Near
3.5 in
8.9 cm
5.875 in
14.1 cm
Far
6.5 in
16.5 cm
N/A
6.67 mil
PDF417
4 Col, 20 Rows
80% MRD
Near
3.75 in
9.5 cm
5.75 in
14.6 cm
Far
N/A
N/A
7.5 mil
Code 39
ABCDEF
80% MRD
Near
2.75 in
7.0 cm
6.875 in
17.5 cm
Far
4.25 in
10.8 cm
7.125 in
18.1 cm
10 mil
PDF417
3 Col, 17 Rows
80% MRD
Near
3.25 in
8.3 cm
6.375 in
16.2 cm
Far
5.75 in
14.6 cm
7.25 in
18.4 cm
13 mil
UPC-A
012345678905
80% MRD
Near
2.25 in
5.7 cm
7.375 in
18.7 cm
Far
3.00 in
7.6 cm
8.375 in
21.3 cm
Notes:
1. Near distances are FOV limited.
2. Contrast is measured as Mean Reflective Difference (MRD) at 670 nm.
3. Working range specifications at temperature = 23°C, pitch=15°, roll=0°,
skew=0°, photographic quality, humidity 45-70%RH.
4. Range measurements are when VCC_ILLUM is powered off of 3.0 V (see
). Powering VCC_ILLUM off of 3.3 V yields slightly improved
working ranges in darkness.
Summary of Contents for Symbol SE4400
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Page 3: ...SE4400 Integration Guide 72E 63399 04 Revision A January 2007 ...
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