4 - 12 Symbol MS4404/MS4407 Integration Guide
Table 4-5
Standard Near Focus Decode Distances
Symbol Density/
Bar Code Type
Bar Code
Content/
Contrast
Note 2
Typical Working
Ranges
Guaranteed Working
Ranges
Near Far Near Far
5.0 mil
Code 39 ABCDEFGH
80% MRD 2.7 in
6.9 cm 5.5 in
14.0 cm 4.0 in
10.2 cm 5.0 in
12.7 cm
6.67 mil
PDF417 4 Col, 20 Rows
80% MRD 3.0 in
7.62 cm 5.25 in
13.3 cm 4.5 in
11.4 cm 5.0 in
12.7 cm
7.5 mil
Code 39 ABCDEF
80% MRD 2.2 in
5.6 cm 6.0 in
15.2 cm 3.5 in
8.9 cm 5.5 in
13.9 cm
10 mil
PDF417 3 Col, 17 Rows
80% MRD 3.0 in
7.6 cm 6.0 in
15.2 cm 4.0 in
10.2 cm 5.5 in
13.9 cm
13 mil
UPC-A 012345678905
80% MRD 2.0 in
5.1 cm 7.0 in
17.8 cm 3.0 in
7.6 cm 6.0 in
15.2 cm
15 mil
PDF417 80% MRD Note 1 7.0 in
17.8 cm Note 1 6.0 in
15.2 cm
20 mil
Code 39 123
80% MRD Note 1 9.5 in
24.1 cm Note 1 8.0 in
20.3 cm
Notes:
1. Near distances are field-of-view (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, ambient light ~30 ft-c, humidity 45-70% RH.