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Symbol ms2204vhd 2d decode distances, Usable scan length – Motorola SYMBOL MINISCAN MSXX04 User Manual

Page 81

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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.

Calculating the Usable Scan Length Methodon page 2-8

describes how to calculate the usable scan length. The

scan angle is provided in the

Usable Scan Length Diagramon page 2-9

.

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.

NOTE

Not optimized for omnidirectional mode.