Motorola MS4404 用户手册
4 - 14 Symbol MS4404/MS4407 Integration Guide
Table 4-6
Standard Far 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
Code 39
ABCDEFGH
80% MRD
80% MRD
5.5 in
13.9 cm
13.9 cm
7.0 in
17.8 cm
17.8 cm
N/A
N/A
6.67 mil
PDF417
PDF417
4 Col, 20 Rows
80% MRD
80% MRD
N/A
N/A
N/A
N/A
7.5 mil
Code 39
Code 39
ABCDEF
80% MRD
80% MRD
3.5 in
8.9 cm
8.9 cm
9.0 in
22.9 cm
22.9 cm
5.5 in
14.0 cm
14.0 cm
7.0 in
17.8 cm
17.8 cm
10 mil
PDF417
PDF417
3 Col, 17 Rows
80% MRD
80% MRD
5.0 in
12.7 cm
12.7 cm
9.0 in
22.9 cm
22.9 cm
6.5 in
16.5 cm
16.5 cm
8.0 in
20.3 cm
20.3 cm
13 mil
UPC-A
UPC-A
012345678905
80% MRD
80% MRD
2.75 in
6.9 cm
6.9 cm
13.5 in
34.3 cm
34.3 cm
3.0 in
7.6 cm
7.6 cm
11.5 in
29.2 cm
29.2 cm
15 mil
PDF417
PDF417
80% MRD
Note 1
12.0 in
30.5 cm
30.5 cm
Note 1
11.0 in
27.9 cm
27.9 cm
20 mil
Code 39
Code 39
123
80% MRD
80% MRD
Note 1
18.5 in
46.9 cm
46.9 cm
Note 1
15.5 in
39.4 cm
39.4 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, ambient light ~30 ft-c, humidity 45-70% RH.
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, ambient light ~30 ft-c, humidity 45-70% RH.