How to calibrate the Flight Control Butler APP Flowmeter?

Answer:

Please exhaust the air from the pipeline first and empty the medicine box, after filling the exact dose (usually 5 liters). Enter the dosage in the input box and click Start. The aircraft will automatically complete the calibration process. The APP prompts the calibration success or failure.

Note: 1. The aircraft can be calibrated on the ground without taking off. You can hover spray or perform job spraying.

2. Must use a matching flowmeter for calibration, it is recommended to buy from Polar Wing sales.

3. Must be set to use the type of flow meter and protection against drug failure.

As shown below: