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DATALOGIC
3 READING FEATURES
The number of reads performed by the DS41 and therefore the decoding
capacity, is influenced by the following parameters:
• number of scans per second
• code motion speed
• label dimensions
• scan direction in 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
DS41
If scanning is perpendicular to the code motion direction (Figure 3.1 - "step
ladder" mode), the number of effective scans performed by the reader is
given by the following formula:
SN = [(LH/LS) * SS] - 2
These symbols signify:
SN =
LH =
LS =
SS =
Figure 3.1 - "Step Ladder" scanning mode
number of effective scans
label height (in mm)
label movement speed (in mm/s)
number of scans per second
Code motion
moving at LS speed
LH
Laser Beam
DS41
Reading features - 3.1
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