Datalogic Scanning DS4600A User Manual

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DS4600A 
If scanning is perpendicular to the direction of the code movement (Figure 31), the 
number of effective scans performed by the reader is given by the following formula: 
 
SN = [(LH/LS) * SS] - 2 
 
 
These symbols signify: 
 
SN = 
number of effective scans 
 
LH = 
label height (in mm) 
 
LS = 
label movement speed (in mm/s) 
 
SS = 
number of scans per second 
 
For example, the DS4600A (800 scans/sec.), for a 25 mm high code moving at 1250 
mm/s performs: 
 
[(25/1250) * 800] - 2 = 14 effective scans. 
 
 
3.2.2 
Picket Fence Mode 
 
 
Direction of code 
movement at LS speed 
DS4600A 
Laser beam 
LW
FW
Figure 32 - "Picket Fence" scanning mode 
 
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