Sprayer calibration tools

SVcummins · Feb 23, 2018

Which of these two sprayer calibration tools would be the best ?

paul · Feb 23, 2018

Funny, I just saw the bottom one in operation for the first time this week at a farm show.

It sure looked neat, like I might actually bother to use that thing! Slick and easy!

Paul

ScottNC · Feb 23, 2018

Not knowing anything about what you are spraying or what with I can only offer my experience and hope it applies.

I started out trying to use the one that came with my air blast orchard sprayer but fared much better using empirical experience.

If you are trying to determine if your nozzles are worn I'd use one that suits the nozzle makers spec's for volume/time. Mine uses ml's/minute so I have a metric measuring container and at one time measured one nozzle at a time. Wound up either with mix left in the tank or running out. I then tried hooking hoses to all the nozzles and pointing them into a cup and timing the flow... not going there again. Besides the mess the results were the same.

Took some fiddling to determine what looked to be the right nozzle in the right location at the right angle and pressure along with a tractor speed that allowed for the desired coverage. Next was how much water it took to cover what needed to be sprayed. I have down to the point the tank goes dry as I'm exiting the last row.

SVcummins · Feb 23, 2018

I use to have it down to a pretty close science as
well but it?s been a long time since I?ve sprayed a lot
of ground and I have got a new sprayer since then

Hay hay hay · Feb 23, 2018

I found a simple formula in a very old U of Kentucky booklet. It explained how to measure the time to go a specific distance with the tractor (gear and throttle). Then you measured the output of one nozzle for that time period. Using the chart (width of sprayer, nozzle spacing and number of nozzles) you could calibrate the mix.

It was quite accurate. Maybe the chart is available on google.

James Howell · Feb 23, 2018

"[b:654c4848f0][i:654c4848f0]<font color="#6699ff">I found a simple formula[/i:654c4848f0][/b:654c4848f0]</font>"

Both Nancy and I have a private applicator license.

Reviewed the [b:654c4848f0]<a href="http://agrilife.org/aes/files/2011/01/Private-Applicator-Certification-DVD-Training-Teachers-Guide.pdf">Using Pesticides Private Applicator Manual</a>[/b:654c4848f0] in the [b:654c4848f0]Application Equipment and Calibration[/b:654c4848f0] section under the [b:654c4848f0]Calibration, Known Areas Method, and Stationary Method[/b:654c4848f0] topics on pages 31 - 35.

Hope this helps.

SVcummins · Feb 24, 2018

Thanks for posting

ScottNC · Feb 24, 2018

(quoted from post at 19:03:14 02/23/18) I found a simple formula in a very old U of Kentucky booklet. It explained how to measure the time to go a specific distance with the tractor (gear and throttle). Then you measured the output of one nozzle for that time period. Using the chart (width of sprayer, nozzle spacing and number of nozzles) you could calibrate the mix.

It was quite accurate. Maybe the chart is available on google.

UNC has one like that but cautions to add 10%.

hydro70guy · Feb 25, 2018

If you have a small sprayer the container and timing it will work fine, check everything more than 10% under for plugging and toss everything more than 10 over. For our sprayer with 90' boom that has 54 tips and triple bodies so 162 tips the spot on is worth the money. Hold for about 10 seconds, get a reading go yo the next one.

Joe

Sprayer calibration tools

SVcummins

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paul

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ScottNC

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SVcummins

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Hay hay hay

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James Howell

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SVcummins

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ScottNC

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hydro70guy

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