56 %
44 %
Information about ch5slides

Published on November 7, 2007

Author: Nivedi


Sprayer Calibration::  Sprayer Calibration: A Groundwater Protection Practice Pesticide Applicator Core Training Manual Part B, Chapter 5 Calibration: As Easy As 1-2-3:  Calibration: As Easy As 1-2-3 #1 Nozzle Flow Rate #2 Ground Speed #3 Nozzle or Band Width Why Calibrate?:  Why Calibrate? Maximizes value of pesticide Insures legal/label rates Minimizes crop injury Minimizes pest control failure When to Calibrate?:  When to Calibrate? A minimum of once a year Calibration Equipment :  Calibration Equipment Collection containers with graduated measurements Calculator Notepad and writing instrument Stopwatch or wristwatch with second hand Calibration formulas and a current nozzle manufacturer’s spray guide Calibration Equipment:  Calibration Equipment Nozzle tip cleaning brush One new tip matched to other nozzles on sprayer Colored marker flags or rags Unlined, chemical-resistant gloves Information to Record:  Information to Record Nozzle type/number - Are they all same? Nozzle spacing on boom Expected and Measured sprayer speed Pressure at the sprayer; pressure at boom Boom height from target Expected output (manufacturer’s) Measured output Methods for Calibration:  Methods for Calibration Timed-flow Method Ounces=Gallons Method Tank Volume Method Timed Flow Method:  Timed Flow Method #1. Select nozzle type based on Method of application Field conditions Pesticide product Sprayer pressure #2. Select nozzle tip (size) Nozzle tip based on gallons per minute GPM based on: gpa, mph, width Timed Flow Method:  Timed Flow Method #3. Solve the GPM equation GPM = gpa x mph x width 5940 Timed Flow Method:  Timed Flow Method #4. Refer to manufacturer’s chart for nozzle type which delivers GPM calculated in step #3 #5. Test for uniform flow rate from each nozzle Use water; collect from nozzle for one minute; check within ±5% Any nozzle discharge >10 percent of catalog specifications at a given pressure is worn out Timed Flow Method:  Timed Flow Method #6. Confirm actual speed of equipment Measure off distance (e.g. 100 feet) Travel distance at chosen operating speed Record time required Speed (mph) = Distance (feet) x 60 Time (seconds) x 88 Ounces = Gallons Method:  Ounces = Gallons Method Before you begin: Check nozzles for uniformity ±5 percent Check pressure gauges at tractor Check that pressure is consistent with nozzle recommendation Ounces = Gallons Method:  Ounces = Gallons Method #1. Determine inches between nozzles or band width in inches #2. Find corresponding calibration distance in chart #3. Mark off distance in field #4. Fasten one quart container on one nozzle to catch discharge Ounces = Gallons Method:  Ounces = Gallons Method #5. Run the course at operating speed, turning sprayer ON at beginning and OFF at end of course #6. Measure liquid collected (Repeat and average output) #7. Ounces collected = Gallons per acre Tank - Volume Method:  Tank - Volume Method Before you begin calibration: Check nozzles for uniformity ±5% #1. Measure course 660 feet long in field #2. Fill spray tank to known depth #3. Run the course at operating speed, turning sprayer ON at beginning and OFF at end of course Tank - Volume Method:  Tank - Volume Method #4. Measure number of gallons required to re-fill tank to same level as step # 2 #5. Use formula to calculate rate applied #6. If rate needs adjusting, change nozzle, speed or pressure #7. If changes made, run test again Sprayer Calibration Considerations:  Sprayer Calibration Considerations Are all nozzles alike? Check for blockage of the nozzle screen Check the seating of the ball check valve Are the number of acres in a field accurate? Do you keep accurate pesticide application records? In conclusion...:  In conclusion... Pesticide sprayer calibration protects groundwater results in increased income should be done once a year Gather calibration equipment Record information Be sure all nozzles are spraying uniformly In conclusion...:  In conclusion... Calibrate sprayer Ounces = Gallons Method Tank Volume Method If the sprayer output is not what it is supposed to be, check for other problems Sprayer Calibration:  Sprayer Calibration Program developed by Michigan State University Extension Groundwater Team: R.L. Dow, M.C. Gould, H.D. Rouget, S.A. Stuby To compliment the Pesticide Applicator Core Training Manual, E-2195 written by the: Pesticide Education Program

Add a comment

Related presentations

Related pages

October 15, 2014 Math 184A Prof. Tesler - UCSD Mathematics ...

Chapter 5: Integer Compositions and Partitions and Set Partitions Prof. Tesler Math 184A October 15, 2014 Prof. Tesler Ch. 5: Compositions and Partitions ...
Read more

Chapter 5. The Discontinuous Conduction Mode

Fundamentals of Power Electronics Chapter 5: Discontinuous conduction mode 3 5.1. Origin of the discontinuous conduction mode, and mode boundary
Read more

3.2 Hypergeometric Distribution Estimating parameters

Estimating parameters 5.3 Confidence Intervals 5.4 Sample Variance 3.2 Hypergeometric Distribution Prof. Tesler Math 186 Winter 2015 Prof. Tesler Ch5 ...
Read more

Insert picture from First page of chapter

ENERGY reactants ENDOTHERMC products heat taken in (absorbed) course of reaction RGY EXOTHERMC reactants heat given out products course of reaction
Read more

Chapter 5: An Overview of Organic Reactions

1 Chapter 5: An Overview of Organic Reactions Reactions are organized by: • what kind of reaction occurs (change from reactants to product) • how the ...
Read more

Social Psychology - University of Massachusetts Lowell

... of Introspecting about Reasons Reasons-Generated Attitude Change Knowing Ourselves by Observing Our Own Behavior Self-Perception Theory Intrinsic ...
Read more

Introduction - John Wiley & Sons

Chapter 5Salvation. Alister E. McGrath. Theology: The Basics …was crucified, died, and was buried; he descended to the dead. On the third day he rose again;
Read more

Chapter 5: Batch processing and the Job Entry Subsystem (JES)

Introduction to the new mainframe © Copyright IBM Corp., 2005. All rights reserved. What an initiator does To run multiple jobs asynchronously, z/OS uses ...
Read more

Lecture Slides - Deanna Hudgens, CPA - Google Sites

Deanna Hudgens, CPA. Search this site. Navigation. HOME. Deanna Hudgens, CPA. Syllabi & Classroom Policies. Accounting 1. Accounting 2. AP Economics ...
Read more

THE CHRISTIAN HOME - Grace Bible Chapel - San Antonio, TX

THE CHRISTIAN HOME Making a Christian Home. The role of a wife and mother has been greatly threatened and damaged in the past 50 years. The pressure ...
Read more