In the normal operation of the aircraft, why isn’t the drug protection triggered when the liquid is not sprayed?

Answer:

1. Check whether the drug-off method (flow meter, level gauge) is set correctly.

2. Check whether the medicine protection is set (hover, return home, etc.).

3. The above two settings are correct. You need to replace the flowmeter to check whether the medicine can be triggered.

4. There are no problems with the above 3 items. The flight controller needs to return to the factory to check whether there is a problem with the channel.