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AGRAS T50/T25
Unmanned Aircraft Flight Manual
44
©
2024 DJI All Rights Reserved.
5. Make sure propellers are securely mounted, that there are no foreign objects in or on the
motors and propellers, that the propeller blades and arms are unfolded, and the arm locks
are firmly tightened.
6. The FPV camera and binocular vision system are clean and in good condition.
7. Make sure the spraying system is not blocked in any way.
8. Make sure the sprinkler hoses are clear from bubbles. Discharge any bubbles as they may
affect the performance of the sprinkler.
System Starting
1. Press the power button on the remote controller and then press and hold to power on the
remote controller. Make sure that DJI Agras is open.
2. Press the power button on the Intelligent Flight Battery and then press and hold to power
on the aircraft.
3. Check the home screen in DJI Agras to make sure that the aircraft is connected to the
remote controller.
4. If using RTK for positioning, make sure that the RTK signal source is correctly set (D-RTK 2
Mobile Station or Network RTK service). Go to Operation View in the app, tap
and select
RTK to view and set.
Set the RTK signal source to None if RTK positioning is not in use. Otherwise, the aircraft is
not able to take off when there is no differential data.
5. Wait for satellites to be searched, make sure that there is a strong GNSS signal, and make
sure the aircraft heading measurement using the dual antennas is ready. (If the dual
antennas are not ready after waiting for an extended period, move the aircraft to an open
area with a strong GNSS signal.)
Calibrating the Flow Meter
When to Recalibrate
1. Using a liquid of a different viscosity.
2. The error between the actual value and the theoretical value of the completed area is more
than 15%.
Calibrating Procedure
1. Fill the spray tank with approximately 2 L of water.
2. In the app, go to Operation View, tap
> , and Spraying System Calibration, then tap
Calibration on the right side of the flow meter calibration section.
3. Tap Start Calibration and calibration will start automatically. The result of the calibration will
be displayed in the app when completed.
After calibrating successfully, users can proceed with the operation.
If calibration fails, tap the notification to view and resolve the problem. Recalibrate once the
problem is resolved.
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