Spray application manual
31 January 2025
Module 13: Rate-controller functions and settings
Module 13: Rate-controller functions and settings
Module 13 focuses on optimising rate-controller functions and settings to achieve the best spraying performance. By following these steps, operators can maximise the efficiency of the rate controller, leading to more accurate and effective spraying applications.
- 13.1: Introduction: the primary function of a rate controller
- 13.2: Inputs required
- 13.3: Settings available on common controller types
- 13.4: Factors affecting the controller’s ability to effectively regulate sprayer output
- 13.5: Functions the operator should consider using
- 13.6: Display outputs
- 13.7: Summary
Key points
A rate controller can only perform as well as the inputs it receives, the settings programmed into it, and the plumbing and components it will allow
Consult the rate controller manual to know what functions it can perform
Check the accuracy of all controller inputs and settings as well as the sprayer outputs before operating the sprayer
Use total flow (litres per minute) and pressure on the screen to monitor sprayer performance
Use spray plans to determine appropriate settings and outputs for various jobs to establish the limits for each nozzle type being used