Microscan Quadrus EZ Manual de usuario Pagina 329

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Quadrus EZ Reader User’s Manual A-25
Appendices
Relative Sizes of FOVs by Lens Type at 4” Focal Distance
Quadrus EZ Maximum 2D Symbol Sizes
Maximum Element Sizes by Lens Type at 4” (101.6mm) Focal Distance
Notes:
Dynamic symbols that are close in size to the maximum field of view limitations may prove difficult to
read unless their vertical placements are precisely controlled.
Good read opportunities are enhanced in Rapid Capture mode by ensuring the maximum number of
Rapid Captures occur while the symbol is in the field of view.
Lens Type
Field of View Narrow Medium Wide Extra Wide
X-dimension
.49” (12.4mm) .78” (19.8mm) .95” (24.1mm) 1.88” (47.8mm)
Y-dimension
a
a. The Y-dimension = X-dimension x 75%.
.37” (9.40mm) .56” (14.2mm) .71” (18.0mm) 1.41” (35.8mm)
Symbol Adjusted Y
b
b. A 20 pixel combined top and bottom buffer (96%) around the symbol is the adjusted Y-dimension.
.355” (9.0mm) .538” (13.7mm) .68” (17.3mm) 1.35” (34.3mm)
.005”
(.127mm)
Aligned to FOV 64 x 64
Rotated
c
c. When 2D symbols are rotated 45°, their maximum Y-dimension is divided by 1.41 to assure readability.
48 x 48
.0075
(.191mm)
Aligned to FOV 64 x 64 88 x 88
Rotated 48 x 48 64 x 64
.010
(.254mm)
Aligned to FOV 64 x 64
Rotated 48 x 48
.015
(.381mm)
Aligned to FOV 88 x 88
Rotated 64 x 64
Narrow Medium Wide Extra wide
.49”
.78”
.56”
.95”
1.88”
1.41”
.71”
Note: FOV representations are approximate and
should not to be used for actual measurement.
12.4mm
19.8mm
9.40 mm
.37”
24.1mm
14.2mm
18.0mm
35.8mm
47.8mm
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