What is the calibration accuracy requirement for band applicators?

What is the calibration accuracy requirement for band applicators?

• A. Within 5%
• B. Within 10%
• C. Within 15%
• D. Within 20%

Answer: (A)

Calibration accuracy for band applicators must be within five percent of the intended rate. Because banding deposits product in a narrow strip, even a small error directly changes how much product that strip receives, affecting control, potential crop injury, and environmental impact. A five percent tolerance handles inevitable variability from measuring and operating the system—flow control, pressure, ground speed, nozzle wear, and measurement error—while still meeting label rates. To check this, run a test pull for a known distance or area, collect and weigh the output, and calculate the actual rate per area; adjust until it’s within five percent of the target. Larger tolerances would allow meaningful deviations from the prescribed rate, increasing risk of over- or under-application.

Calibration accuracy for band applicators must be within five percent of the intended rate. Because banding deposits product in a narrow strip, even a small error directly changes how much product that strip receives, affecting control, potential crop injury, and environmental impact. A five percent tolerance handles inevitable variability from measuring and operating the system—flow control, pressure, ground speed, nozzle wear, and measurement error—while still meeting label rates. To check this, run a test pull for a known distance or area, collect and weigh the output, and calculate the actual rate per area; adjust until it’s within five percent of the target. Larger tolerances would allow meaningful deviations from the prescribed rate, increasing risk of over- or under-application.