DJI Agras T50 Quick Start Guide
v1.0 2022.12
Aircraft
The DJI Agras T50 aircraft features an anti-torsion structure for reliable operations. Its integrated spraying system can be quickly converted to a spreading configuration with a payload capacity of up to 50 kg.
The aircraft is equipped with a phased array radar system and a binocular vision system, including downward and forward binocular vision, and forward and rear phased array radar. These systems provide 360-degree omnidirectional obstacle sensing for operational safety. An ultra HD FPV camera with a tiltable gimbal can automatically capture HD field images for local offline reconstruction, aiding in precise field planning.
The coaxial dual propeller structure generates a strong wind field, allowing pesticides to penetrate thick canopies for thorough spraying. The spraying system includes a Magnetic Drive Impeller Pump, Dual Atomized Sprinklers, an Anti-Drip Centrifugal Valve, and a solenoid valve for efficient and precise pesticide spraying, while also conserving liquid pesticide. The spraying system can be upgraded with two additional sprinklers to accommodate different operational scenarios.
Aircraft Components:
- Propellers
- Motors
- ESCs
- Aircraft Front Indicators (on two front arms)
- Frame Arms
- Folding Detection Sensors (built-in)
- Spray Lance
- Sprinklers
- Spread Tank
- Delivery Pumps
- FPV PTZ camera
- Downward Binocular Vision
- Forward Binocular Vision
- Spotlights
- Forward Phased Array Radar
- Rear Phased Array Radar
- Landing Gear
- Intelligent Flight Battery
- Onboard D-RTK™ Antennas
- Internal OCUSYNC™ Image Transmission Antennas
- External OcuSync Image Transmission Antennas
- Aircraft Status Indicators (on two rear arms)
Views: Rear View, Folded
Using the T50
Preparing the Intelligent Flight Battery
Only use official DJI flight batteries. Check the battery level before flying and charge according to the corresponding manual document.
Battery Information: BAX702-30000mAh-52.22V
Battery Handling:
- Ensure the battery is firmly inserted into the aircraft. Insert or remove the battery only when the aircraft is powered off.
- To remove the battery, press and hold the clamp and lift the battery up.
Preparing the Aircraft
Unfolding Arms:
- Unfold the M3 and M4 arms, and fasten the two arm locks. Avoid pinching fingers.
- Unfold the M1 and M2 arms, and fasten the two arm locks. Avoid pinching fingers.
- Unfold the propeller blades.
Installing Battery:
- Insert the Intelligent Flight Battery into the aircraft until it clicks.
Getting Ready for Takeoff
- Place the aircraft on open, flat ground with the rear facing you.
- Ensure propellers are securely mounted, with no foreign objects on motors or propellers. Verify that propeller blades and arms are unfolded, and arm locks are fastened.
- Confirm the spray tank and flight battery are securely in place.
- Power on the remote controller and the aircraft. Open the DJI Agras app and enter Operation View. Ensure GNSS signals are strong and the screen displays "Ready to GO (GNSS)" or "Ready to GO (RTK)". The aircraft cannot take off otherwise.
RTK Positioning: Recommended. In the app, navigate to Operation View, tap > RTK, and select a method for receiving RTK signals.
Calibrating the Flow Meter
Calibrate the flow meter in the following situations:
- When changing liquid payload with different viscosity.
- If the difference between the actual area and planned area exceeds 15% after the first operation.
Calibration Procedure:
- Get Ready to Calibrate: Fill the spray tank with approximately 2 L of water. Press the Spray button to start or stop spraying manually to exhaust air.
- Calibrate Flow Meter: In the app, go to Operation View, tap >, then tap Calibration on the right of the flow meter calibration section.
- Tap Start Calibration. Calibration will proceed automatically. Results will be displayed in the app upon completion.
- If calibration is successful, proceed with the operation.
- If calibration fails, tap the reminder to view and resolve the problem. Recalibrate afterwards.
Flight
For automatic takeoff and operation, it is recommended to create a flight plan and select an operation before takeoff. Refer to the Starting Operations section for details. For other scenarios, take off and land manually:
Takeoff
Perform a Combination Stick Command (CSC) and push the throttle stick up to take off.
Control: Throttle Stick (left stick in Mode 2)
Landing
Push the throttle stick down until the aircraft lands. Two methods are available to stop the motors after landing:
Method 1: After landing, push and hold the throttle stick down. Motors stop after three seconds.
Method 2: After landing, push the throttle stick down, and perform the same CSC used to start motors. Release both sticks once motors have stopped.
Caution:
- Spinning propellers are dangerous. Stay away from them and the motors. Do not start motors in confined spaces or near people.
- Maintain control of the remote controller while motors are running.
- Do not stop motors mid-flight, as this can cause the aircraft to crash. Stop motors only in emergencies to reduce risk.
- Method 1 is recommended for stopping motors. Method 2 may cause the aircraft to roll over if not fully grounded. Use Method 2 with caution.
- After landing, power off the aircraft before turning off the remote controller.
Starting Operations
Users can perform aerial surveying using the DJI Agras app, receiving an HD map via offline reconstruction. Field planning and identification can be done on the HD map before route operation. The following describes using Crosshair and Route Mapping as an example:
- Power on the remote controller and aircraft. Enter Operation View in the DJI Agras app.
- Tap the Mode button (top left corner) and select Route Mapping in the Mapping panel.
- Tap on the bottom right, select Area Route or Boundary Route, then tap in the middle of the right screen to select Crosshair in the Add Point list.
- Drag the map and tap Add to place a point at the crosshairs. Tap to save.
- Tap and move the slider to launch the aircraft. The aircraft will perform the mapping operation along the route and land automatically.
- Wait for the app to complete reconstruction. The result will display on the original map.
- Tap Identify Field, then tap an identified field to select and adjust its boundary.
- Tap the Mode button (top left) and select Route in the Agriculture panel.
- Tap on the left and select a field from the list.
- Tap Edit to edit the field and set route parameters. Drag to adjust flight direction. Save.
- Tap to use the field. Set task parameters and tap to save.
- Tap to check aircraft status and task settings, then move the slider to take off. The aircraft will perform the operation automatically.
Important Notes:
- Take off only in open areas. Set appropriate Connection Routing and RTH Altitude based on the environment.
- An operation can be paused by slightly moving the control stick. The aircraft will hover and record the breakpoint, then can be controlled manually. Resuming the operation will cause the aircraft to return to the breakpoint automatically. Pay attention to safety when returning to a breakpoint.
- In Route and Fruit Tree Operation modes, the aircraft can circumvent obstacles (disabled by default, enable in app). If enabled, the aircraft will slow down, circumvent obstacles, and return to its original path.
- Users can set the aircraft's post-operation action in the app.
More Operation Modes and Functions: Refer to the user manual for details on A-B Route Operation, Manual Operation, Fruit Tree modes, Connection Routing, Operation Resumption, System Data Protection, and Empty Tank procedures.
Specifications
Aircraft (Model: 3WWDZ-40B)
Operating Frequency | 2.4000-2.4835 GHz 5.725-5.850 GHz |
Transmitter Power (EIRP) | 2.4 GHz: <33 dBm (FCC), <20 dBm (CE/SRRC/MIC) 5.8 GHz: <33 dBm (FCC), <23 dBm (SRRC), <14 dBm (CE) |
RTK/GNSS Operating Frequency | RTK: GPS L1/L2, GLONASS F1/F2, BeiDou B1I/B2I/B3I, Galileo E1/E5b, QZSS L1/L2 GNSS: GPS L1, GLONASS F1, BeiDou B1I, Galileo E1, QZSS L1 |
Operating Temperature | 0° to 45° C (32° to 113° F) |
Forward Phased Array Radar (Model: RD241608RF)
Operating Frequency | 24.05-24.25 GHz (NCC/FCC/MIC/KC/CE) |
Power Consumption | 23 W |
Transmitter Power (EIRP) | <20 dBm (NCC/MIC/KC/CE/FCC) |
Operating Voltage | DC 15 V |
Operating Temperature | 0° to 45° C (32° to 113° F) |
Rear Phased Array Radar (Model: RD241608RB)
Operating Frequency | 24.05-24.25 GHz (NCC/FCC/MIC/KC/CE) |
Power Consumption | 18 W |
Transmitter Power (EIRP) | <20 dBm (NCC/MIC/KC/CE/FCC) |
Operating Voltage | DC 15 V |
Operating Temperature | 0° to 45° C (32° to 113° F) |
Compliance Statements
FCC Compliance Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) it must not cause harmful interference, and (2) it must accept any received interference, including interference that may cause undesired operation. Changes not expressly approved by the responsible party could void the user's authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits provide reasonable protection against harmful interference in residential installations. The equipment generates, uses, and can radiate radio frequency energy. If not installed and used per instructions, it may cause harmful interference to radio communications. No guarantee of no interference in a particular installation is provided.
If interference occurs, users are encouraged to try correcting it by:
- Reorienting or relocating the receiving antenna.
- Increasing separation between equipment and receiver.
- Connecting equipment to an outlet on a different circuit than the receiver.
- Consulting the dealer or an experienced radio/TV technician.
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits for an uncontrolled environment. It should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating with any other antenna or transmitter.
ISED Compliance Statement
This device contains licence-exempt transmitter(s)/receiver(s) complying with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to two conditions: (1) the device must not cause interference, and (2) it must accept any interference, including interference that may cause undesired operation.
L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) L'appareil ne doit pas produire de brouillage; (2) L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
ISED Radiation Exposure Statement
This equipment complies with IC RSS-102 radiation exposure limits for an uncontrolled environment. It should be installed and operated with a minimum distance of 20 cm between the radiator and your body.
Cet équipement est conforme aux limites d'exposition aux radiations IC CNR-102 établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec une distance minimale de 20 cm entre le radiateur et votre corps.