Near Intersection of I-35 & I-90 Southern Mn. | KRK and I worked together for several as sprayer techs. We could throw quite a party if we had a dollar for every time we got a call and the customer said "it ain't showin' nothin'".
I suspect but of course don't know that by blank, the OP meant that the displayed application rate was zero. If the displayed application rate is zero, check the Vol/min and Area/hr keys (on the bottom row). One of those will be zero. I'm guessing the Vol/min will show zero which would indicate a problem in the flow meter area. This could be a worn flow meter, bad cables, zero meter cal etc.
If the Area/hr is zero, this indicates a problem with the speed sensor, boom sense. boom widths etc.
If the screen goes completely blank and doesn't show any letters, numbers or symbols then that is likely a display problem.
Edited by tedbear 7/7/2025 13:51
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Raven 450 Flow control valve
