166 WaveRIDER
The graph shown in Figure C- 4 should be used to determine the maximum conveyor
speed you may use to avoid violating the 1.0 second minimum travel time between
sensors and waves. This is a function of the distance between the chip and solder
waves and the average solder wave contact length.
Maxium Conveyor Speed vs Contact Length
Dropout Filter time = 1.0 Sec
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0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Wave Seperation (in)
Maximum Conveyor Speed (ft/min)
3.5" 3.0" 2.5" 2.0" 1.5" 1.0" 0.5"
Average Contact Length (in)
Figure C- 4: Dropout Time Graph
Locate the curve that represents your average contact length. Locate the Chip to Solder
wave separation on the X-axis of the graph. Move up vertically until it intersects the
contact length or the fixed curve. Look to the left to determine the maximum conveyor
speed you may run.
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