MS1204 User Manual - BarcodeMuseum.com

Installation
Symbol is Perpendicular to Conveyor Movement
With the symbol bars perpendicular to the conveyor belt direction (Picket Fence
presentation) the relationship is:
V = (R x (F-W)) / N
where:
V = Velocity of the conveyor (inches/second)
R = Scan Rate (see technical specifications)
F = 80% of width of scan beam
W = Symbol Width (inches)
N = Number of scans over symbol (minimum of 10 scans)
F=Field Width
W=Symbol Width
Direction of Conveyor Perpendicular to Symbol
Scan Beam
Figure 2-10. Symbol Perpendicular To Conveyor Movement
Example
R = 640 scans per second
F = 80% of 6 in.
W = 4 in.
N = 10
V = (640 x ((0.8 x 6) - 4))) / 10 = 51.2 in./sec
2-15