Installation manual
READING FEATURES
4
4.2.1 Step-Ladder Mode
If scanning is perpendicular to the code motion direction (Figure 44), the number of effective
scans performed by the reader is given by the following formula:
SN = [(LH/LS)
*
SS] – 2 Where: SN = number of effective scans
LH = label height (in mm)
LS = label movement speed in (mm/s)
SS = number of scans per second
Direction of code
movement at LS speed
LH
DS2100N
Laser beam
Figure 44 - "Step-Ladder" Scanning Mode
For example, the DS2100N (500 scans/sec.) for a 25 mm high code moving at 1000 mm/s
performs:
[(25/1000)
*
500] - 2 = 10 effective scans.
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