Installation manual

DS4800 REFERENCE MANUAL

7.2.2 Picket-Fence Mode

If scanning is parallel to the code motion, (Figure 91), the number of effective scans is given

by the following formula:

SN = [((FW-LW)/LS)

SS] -2 Where:

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

Figure 91 - "Picket-Fence" Scanning Mode

For example, for a 60 mm wide code moving in a point where the reading field is 160 mm

wide at a 2000 mm/s speed, the DS4800 (800 scans per sec.), performs:

[((160-60)/2000)

800] - 2 = 38 effective scans

Direction of code movement

at LS speed

Laser beam

DS4800