Reading Features; Step-Ladder Mode - Datalogic DS2200-1110 Reference Manual

3
3

READING FEATURES

The number of scans performed on the code by the DS2200 and therefore the
decoding capability is influenced by the following parameters:
number of scans per second
code motion speed
label dimensions
scan direction with respect to code motion
At least 5 scans during the code passage should be allowed to ensure a successful
read.
3.1

STEP-LADDER MODE

DS2200
Figure 16 - "Step Ladder" scanning mode
If scanning is perpendicular to the code motion direction (Figure 16), the number of
effective scans performed by the reader is given by the following formula:
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
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Direction of code
movement at LS speed
SN = [(LH/LS) * SS] - 2
DS2200
LH
Laser beam