Installation 2 - 11

Symbol is Parallel to Conveyor Movement

With the symbol bars parallel to the conveyor belt direction (ladder presentation) the relationship is:
V = (R x H) / N
where:
V = Velocity of the conveyor (inches/second)
R = Scan Rate of scanner (see technical specifications)
H = Symbol height
N = Number of scans over symbol (minimum of 10 scans)
Figure 2-10
Symbol Parallel To Conveyor Movement

Example

Use the previous formula to calculate the number of scans for a specific bar code, scanner, and conveyor speed; a
minimum of 10 scans per symbol is recommended.
R = 640 scans/sec
H = 60 mil
N = 10 scans
V = (640 x .060) / 10 = 3.84 in./sec
Scan Beam
Direction of Conveyor Parallel to Symbol
H=Symbol Height