SECTION 3
Scanner Specifications
SE 1223 Scanner User’s Guide 3-13
Where:
D = Distance (in inches) from the front edge of the
housing.
d = The housing’s internal optical path (in inches)
from the edge of the housing to the front of the scanner.
A = Scan angle in degrees (23
°
).
So:
L = 1.8 x (D + d) x Tan 11.5
°
"
NOTE:
Usable scan length determined by above formula, or 90% of scan
line at any working distance.
The calculation given above is based on good quality sym-
bols in the center of the working range and length of bar
code.
Содержание SE1223
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Страница 103: ...SECTION 2 Scanner Parameters SE 1223 Scanner User s Guide 2 81 SYMBOL CODE ID CHARACTER AIM CODE ID CHARACTER NONE...
Страница 124: ...SECTION 3 Scanner Specifications 3 14 SE 1223 Scanner User s Guide...