READING FEATURES
3
If scanning is parallel to the code movement (Figure 32) the number of effective
scans is given by:
SN = [((FW-LW)/LS) * SS] - 2
These symbols signify:
SN =
number of effective scans
FW =
reading field width (in mm)
LW =
label width (in mm)
LS =
label movement speed (in mm/s)
SS =
scans per second
For example, for a 100 mm wide code moving in a point where the reading field is
200 mm wide at a 2000 mm/s speed, the DS4600A (800 scans per sec.), performs:
[((200-100)/2000) * 800] - 2 = 38 scans
3.3 PERFORMANCE
The DS4600A scanner is available in different versions according to the reading
performance.
Version
Max Code Resolution
Speed
mm
(mils)
scans/s
21XX / 31XX
0.50 (20)
800
20XX / 30XX
0.25 (10)
800
220X / 32XX
0.20 (8)
800
Version Reading
Distance
210X
200 mm (8 in) - 980 mm (39 in) on 1.00 mm (40 mils) codes
200X
160 mm (6 in) - 540 mm (21 in) on 0.50 mm (20 mils) codes
220X
50 mm (1.97 in) - 400 mm (15.75 in) on 0.80 mm (31 mils) codes
310X
200 mm (8 in) - 970 mm (38 in) on 1.00 mm (40 mils) codes
300X
160 mm (6 in) - 540 mm (21 in) on 0.50 mm (20 mils) codes
320X
120 mm (4.7 in) - 310 mm (12.2 in) on 0.30 mm (12 mils) codes
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