Motorola MSXX07 ユーザーズマニュアル
8 - 12 Symbol MiniScan MSXX07 Series Integration Guide
Usable Scan Length
The decode zone is a function of various symbol characteristics including density, print contrast, wide-to-narrow
ratio, and edge acuity. Width of decode zone at any given distance must be considered when designing a system.
ratio, and edge acuity. Width of decode zone at any given distance must be considered when designing a system.
provides a detailed description of how to calculate the
usable scan length. The scan angle is provided in
.
Table 8-4
Symbol MS3207 2D Slab/Raster Decode Distances
Symbol Density/
p/n / Bar Code Type
Bar Code Content/
Contrast
1
Typical Working Ranges
3
Guaranteed Working
Ranges
3
Near
Far
Near
Far
6.6 mil
64-14035-01
2D
123
80% MRD
1.0 in.
2.54 cm
5.25 in.
13.34 cm
1.5 in.
3.8 cm
3.75 in.
9.5 cm
10 mil
64-14037-01
2D
ABCDEF
80% MRD
3.5 in.
8.89 cm
9.5 in.
24.13 cm
5.0 in.
12.7 cm
7.5 in.
9.5 cm
15 mil
64-14038-01
2D
012345678905
80% MRD
6.5 in.
16.51 cm
14.0 in.
35.6 cm
Note 2
11.0 in.
24.1 cm
55 mil
64-17458-01
1D
CD
80% MRD
1.0 in.
2.54 cm
32 in.
81.3 cm
Note 2
22.0 in.
55.9 cm
Notes:
1. Contrast measured as Mean Reflective Difference (MRD) at 650 nm.
2. Near ranges on largely depend on the width of the bar code and the scan angle.
3. Working range specifications: Photographic quality symbols, pitch = 15º, skew = 0º, roll = 0º,
ambient light < 150 ft. candles, and temperature = 23 °C, Vcc = 5V.
4. Measured from the front of the scanner.
1. Contrast measured as Mean Reflective Difference (MRD) at 650 nm.
2. Near ranges on largely depend on the width of the bar code and the scan angle.
3. Working range specifications: Photographic quality symbols, pitch = 15º, skew = 0º, roll = 0º,
ambient light < 150 ft. candles, and temperature = 23 °C, Vcc = 5V.
4. Measured from the front of the scanner.