Installation manual

DATALOGIC DS1100
Reading Features - 3.1
3 READING FEATURES
The number of scans performed on the code by the DS1100 and therefore
the decoding capability is influenced by the following parameters:
•
number of scans per second
•
code motion speed
•
label dimensions
•
scan direction in respect to code motion
Typically, 5 scans should be allowed during the code passage to ensure a
successful read.
3.1 STEP-LADDER MODE
Code motion direction
at LS speed
Laser beam
Figure 3.1 - "Step-ladder" scanning mode
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 = 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 DS1100 (350 scans/sec.) for a 25 mm high code moving at