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Table 3-5. SE4400-E000E Decode Distances in Darkness (Continued)
Symbol Density/
Bar Code Type
15 mil
PDF417
20 mil
Code 39
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
4-1 on page
4-1). Powering VCC_ILLUM off of 3.3 V yields slightly improved
working ranges in darkness.
Bar Code
Content/
Note 2
Contrast
80% MRD
Near
Far
123
Near
80% MRD
Far
Typical Working
Focus
Position
Near
Note 1
Note 1
Note 1
Note 1
SE4400 Specifications
Ranges
Far
7.125 in
18.1 cm
7.75 in
19.7 cm
8.25 in
21.0 cm
9.25 in
23.5 cm
Table
3-13
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