Near Intersection of I-35 & I-90 Southern Mn. | That depends on several factors. With the pump geared to run quite slowly, a long stroke was necessary which produced more oscillation. With a Raven 440, the "time sample" to compute the rate was apparently quite short since it could be used for auto rate control and the engineers wanted it to be "right on top of things" to make the correction before the system got out of hand.
With my Ag Leader Application Rate module, the oscillation is very acceptable since I believe it uses a longer "time sample" to compute the rate which tends to average things out more. This would be acceptable since the Application Rate Module can not control the rate but only monitor it.
Also we went from a 12 row planter to a 24 row planter and used the same DemCo pump. The drive on the pump was different and there were twice the rows so the combination of these factors made for a nice stable output on the screen.
Even with the oscillation on the Raven 440, taking a mental average of the high and low seemed to agree with the actual rate being delivered. This was a rather clumsy way to go about it. If the display bounced back and forth between 4 Gallons/acre and 6 Gallons/acre, the average would be 5 Gallons/acre which seemed to agree with the fertilizer being used.
I guess its debatable as to how much we should use anyway. It is an expensive form of fertilizer. |
how to set john blue ground drive pump
