1 / 61

Sprayer Calibration

Sprayer Calibration. How important is Calibrating your sprayer on a regular basis?. If you spend $50,000.00 dollars per year on chemical! We divide that cost by the number of nozzles on your sprayer. For instance: $50,000.00/26=$1923.08 dollars per nozzle .

chen
Download Presentation

Sprayer Calibration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Sprayer Calibration

  2. How important is Calibrating your sprayer on a regular basis? • If you spend $50,000.00 dollars per year on chemical! • We divide that cost by the number of nozzles on your sprayer. For instance: $50,000.00/26=$1923.08 dollars per nozzle. • If we allow for 10% wear factor it means you are wasting $192.3. (Or $5000.00 per year wasted per season). • That said a $10.00 nozzle purchase is pretty cheap insurance!!!

  3. What is the most important piece of equipment for calibration?

  4. “YOU” the Operator!

  5. Calibration is not just about the math or Choosing nozzles

  6. These are all of the areas that you must be aware of to do a “Calibration”.

  7. Let’s review the theory behind the Math!

  8. What does the Calibration Formula actually represent? Row width x Gallons per Acre x Ground Speed Constant =Results in Gallons per minute per side.

  9. The Colored square represents the calculated spray area of the formula application rate or GPM PER SIDE!

  10. A lot of spray problems can be linked to: • A lot are missing the target! • Not enough carrier (water) volume for canopy (or too much!) i.e., Too low of a volume for canopy area. • Spraying multi rows with same rate as the single half row rate. • Too much wind for the spray canopy • Air in the wrong place and not were it is needed • High travel or ground speed which does not allow the sprayer to displace the volume of air within the canopy. • Everyone’s favorite “drift”. Simply trying to do too much! More is not always better

  11. How do I determine the right amount of air for my application? Place flagging tape on the opposite side of the tree from the sprayer How do I know what is enough air?

  12. Let’s talk nozzles *Full Cone *Hollow Cone *Air induction

  13. How do I know which nozzle to use?

  14. If you’re Choosing a nozzle by Droplet Size, to avoid Drift, do you still get great coverage?

  15. Super, I have to guess again!The Optimum water particle size was discussed in tests done in the 60 and 70’s. The optimum water particle size was determined to be “150 micron”

  16. How do I know if I have made the right choice???? • What do we use for test media? • Water sensitive paper is our test media to get a representation of what a 150 micron water droplet should look like in a tree

  17. That’s Great but How do I determine particle size when choosing nozzles? Does this ever stop! More questions!

  18. All nozzle manufacturers can supply micron nozzle charts to provide you with the required information

  19. Does my sprayer have an effect on particle size? • 420 micron water entering an airstream at 90 degrees • Produces a water droplet of 280 micron • Which is a 33% reduction in size Yes! Air Velocity from a sprayer can reduce particle size! Does nozzle location effect particle size?

  20. What is the Effect of Water particle size in relationship to the nozzle position in the air stream? In both pictures below the sprayer nozzles are the same size and in the same location on both booms (Information supplied by Air Blast 101) Durand Wyland Turbomist Nozzle location of sprayers Rears, Durand Wyland, Air o fan Turbomist

  21. How do I know what Spraying pressure I should use to achieve 150 micron?

  22. Every Nozzle manufacturer has this information. www.teejet.com http://teejet.it/english/home.aspx/result.aspx

  23. Remember, we learned that 150 micron was optimum! Now remember air shear!!!! Spray Pressure at 100 PSI Spray Pressure at 200 psi

  24. As a General rule of thumb a good place to start with pressure on air blast sprayers is: 100 psi

  25. Lets RECAP! • What is the most important piece of equipment in calibration? • There a 6 areas of concern in a good calibration. • Calibration formula only solve for what area? • How do I test for correct coverage? • What size water particle is optimum? • How do I know what nozzles give what size microns? • Does the air of my sprayer effect the particle size? • What spraying pressure should I start at? • Operator/you! • Method, Weather, Target, Product, Operator • The actual drive row! • Flagging tap on the opposite side of the tree to the sprayer drive row! • 150 Micron! • All nozzle manufacture can provide them, I will give you copies!!! • Yes, general rule of thumb reduce the water particle by 33% • 100psi Question Answer

  26. Have we solved the fear of “Calibration”? www.slimlinemfg.com Calibration program

  27. Are there any questions so FAR?

  28. Decision tools available to you to avoid “Drift”

  29. Drift reduction is all about targeting spray where you need it!

  30. Step #1 Target your “AIR” We set our deflectors or outlets to get the desired coverage area.

  31. Step #2How do we know if we have enough air flow thru the tree?

  32. Can there Really be too much air???

  33. Yes! There is a scenario of too much air which Slimline calls “Push Back” • As the target gets closer to the blower • Trees ability to allow air to travel thru the canopy becomes evident. • Sprayer’s blower supplies 10,000 cfm but the tree’s ability to allow the air to pass thru is only 5,000 cfm. Then we get “Push Back” What is Push Back Lines indicate the wind flow around and limited flow thru the tree.

  34. Step #4Focusing the Air to avoid Drift and improve Coverage

  35. How to use new nozzle technology in high density planting Tan area Air induction Purple area TXVK if rows are less 15’ Different tree design: same rules

  36. New Nozzle Technology with Towers Top of Tower Air induction or Swirls Moving down to TXVK or 25 Swirls Concept here is the greater the distance from target to tower the larger the water particle to avoid drift Different planting same rules

  37. When it comes to reducing drift follow the illustrations below Wrong Way Right Way

  38. What have we learned so far about control drift? • Avoid using nozzles that produce water droplets smaller than 100 Micron • 100 PSI is the “SWEET SPOT” TO AVOID DRIFT • In the canopy areas that are prone to drift increase water particle size. • Target air! • All Drift Data Provided by Ohio State University

  39. Gear Up Throttle Down By simply reducing tractor RPM & Shifting up a gear to achieve the same ground speed

  40. Applying Gear Up Throttle Down • Row 15’ Wide • 100 Gallons Per Acre • Ground is 2.5 Mph 3 gear in “A” range • But PTO SPEED is Now 450 RPM How do I use the throttle without having to recalibrate? My Present Calibration is: 15’ wide Row 100 Gallon per acre Ground speed of 2.5 in Second “B” Range Tractor PTO at 540 RPM

  41. Has there been any research done on the “Gear Up Throttle Down” Concept?

  42. Yes. University of Davis Tested Gear Up Throttle Down and Drift Reduction 100 GPA with D4/25 & D6/25 Test Pads 25’,50’,75’,100’,200’

  43. Results of testing done by the University of Davis Drift Reduction by 50%

  44. Let’s Recap what we have learned so far! • No droplets less 100 micron • Use flagging tape to determine enough blow thru. • If needed use the throttle to achieve enough penetration Recap the Facts Visual Goal

  45. Remarks from customers about Gear Up Throttle Down!

  46. What is New Sprayer Technology?

  47. Hooray!!!!

  48. Nozzles Technology • Full Cone • Examples: FL, TG, & Disc-Core • Hollow Cone • Examples: TX, TXA, TXB, AITX, TXR, & Disc-Core

  49. TX & TXA & TXB • Applications: • Air Blast for orchards, vineyards, & specialty crops • Features and Benefits: • Maximum operating pressure 300 psi • Small droplets = great coverage • 80° Spray pattern angle • 017 – 04 capacities

  50. TXR-VK ConeJet Tips • Applications • Air Blast • Features and Benefits • 12 Capacities • Ceramic orifice & core plate • Direct replacement for Albuz ATR • Maximum 360 PSI / 25 Bar rating • Meaningful part numbers • Flow rated at 40 psi • 80 Degree cone pattern • Easy cleaning & inspection

More Related