2 picket fence mode – Datalogic Scanning LASER SCANNER DS4300 User Manual

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DS4300

DATALOGIC

3.4 - Reading Features

For example, the DS4300 (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

Code motion

moving at LS speed

Laser Beam

DS4300

Figure 3.6 - "Picket Fence" scanning mode

If scanning is parallel to the code motion, (Figure 3.6 - "picket fence" mode),
the number of effective scans is given by:

SN = [((FW-LW)/LS) * SS] - 2

These symbols signify:

SN =

number of effective scans

FW =

reading field width (in mm)

LW =

label width (in mm)

LS =

label movement speed (in mm/s)

SS =

scans per second

For example, for a 100 mm wide code moving in a point where the reading
field is 200 mm wide at a 2000 mm/s speed, the DS4300 (800 scans per
sec.), performs:

[((200-100)/2000) * 800] - 2 = 38 scans