Motorola MSXX04 ユーザーズマニュアル
Symbol MS2204VHD Specifications 6 - 11
Symbol MS2204VHD 2D Decode Distances
Usable Scan Length
The decode zone is a function of various symbol characteristics including density, print contrast, wide-to-narrow
ratio, and edge acuity. Consider width of decode zone at any given distance when designing a system.
ratio, and edge acuity. Consider width of decode zone at any given distance when designing a system.
describes how to calculate the usable scan length. The
scan angle is provided in the
Table 6-4
Symbol MS2204VHD 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
4 mil
64-17025-01
PDF417
123
80% MRD
1.90 in.
4.83 cm
3.00 in.
7.62 cm
2.20 in.
5.59 cm
2.70 in.
6.89 cm
6.6 mil
64-14035-01
PDF417
ABCDEF
80% MRD
1.50 in.
3.81 cm
4.75 in.
12.07 cm
2.00 in.
5.08 cm
4.50 in.
11.43 cm
10 mil
64-14937-01
PDF417
012345678905
80% MRD
3.00 in.
7.62 cm
5.75 in.
14.61 cm
4.25 in.
10.80 cm
5.00 in.
12.72 cm
Notes:
1. Contrast measured as Mean Reflective Difference (MRD) at 650 nm.
2. Near ranges on lower densities largely depend on the width of the bar code and the scan
angle.
3. Working range specifications: Photographic quality symbols, pitch = 10°, skew = 0°,
roll = 0°, ambient light < 150 ft. candles, and temperature = 23 °C.
1. Contrast measured as Mean Reflective Difference (MRD) at 650 nm.
2. Near ranges on lower densities largely depend on the width of the bar code and the scan
angle.
3. Working range specifications: Photographic quality symbols, pitch = 10°, skew = 0°,
roll = 0°, ambient light < 150 ft. candles, and temperature = 23 °C.
NOTE
Not optimized for omnidirectional mode.