dji Agras T40 Agriculture Drone User Guide

Agras T40 Agriculture Drone
Quick Start Guide

Agras T40 Agriculture Drone

https://ag2-api.dji.com/app/download

Charge to activate the internal battery of the remote controller before using for the first time.Dongle related functions are not supported in some countries or regions. Comply with the local laws and regulations. Check battery level: press once.
Power on/off: press and then press and hold.Follow the prompts to activate (internet connection required). Mode 2

1. Start/stop motors: perform combination stick command.
2. Takeoff: push the left control stick (Mode 2) up to take off.
3. Landing: push the left control stick (Mode 2) down until the aircraft lands. Hold for three seconds to stop the motors.

In order for the aircraft to automatically take off and perform an operation, it is recommended to create a plan for a field and select an operation before takeoff. Refer to the Starting Operations section for more information. For other scenarios, take off and land manually.

Using the Agras T40

Getting Ready for Takeoff
A. Place the aircraft on open, flat ground with the rear of the aircraft facing toward you.
B. Make sure that the propellers are securely mounted, there are no foreign objects in or on the motors and propellers, the propeller blades and arms are unfolded, and the arm locks are firmly fastened.
C. Make sure that the spray tank and flight battery are firmly in place.
D. Power on the remote controller, make sure that the DJI™ AGRAS™ app is open, and power on the aircraft.
Go to the home screen in the app and tap Start to enter Operation View. Make sure that there is a strong GNSS signal and the system status bar indicates Ready to GO (GNSS) or Ready to GO (RTK). Otherwise, the aircraft cannot take off.

• RTK positioning is recommended. In the app, go to Operation View, tap , then RTK to select a method for receiving RTK signals.
• If using the DJI Cellular Dongle, tap and select Network Diagnostics in DJI Agras. The cellular dongle and SIM card are functioning properly if the status of all the devices in the network chain are displayed green.

Calibrating the Flow Meter
Make sure to calibrate the flow meter before using for the first time. Otherwise, the spraying performance may be adversely affected.
A. Fill the spray tank with approximately 2 L of water.
B. In the app, go to Operation View, tap , then , and tap Calibration on the right side of the flow meter calibration section.
C. 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 “?” to view and resolve the problem. Recalibrate once the problem is resolved.

Starting Operations

Users can perform mapping operations in the operating area using the DJI Agras app, receive an HD map via offline reconstruction using the remote controller, and plan a field for operations. DJI Agras provides multiple methods to add points. The following description uses Route Mapping and Crosshair as an example.
Mappin
**** Power on the remote controller and then the aircraft. Enter Operation View in the DJI Agras app.
Tap the button on the upper left and select Route Mapping on the Mapping panel in the task mode selection screen.
Tap on the bottom right, select Area Route or Boundary Route, tap  in middle of the right screen, and select Crosshair.
Drag the map and tap Add to add a point at the crosshair position. Tap to save.
Tap and move the slider to take off. The aircraft will perform the mapping operation along the route automatically.
Wait for the reconstruction to be completed. The reconstruction result will be displayed on the original map.
After reconstruction, tap Plan Field and follow steps 3 to 6 in the following section to add points and perform operations. Users can also tap to cancel the current selection and start a new mapping operation.

Planning Field and Performing Operation
In Operation View, tap the mode button at the top left and select Route on the Agriculture panel.
Tap on the bottom right, tap in the middle of the right screen, select Crosshair, and select the type of point.
Drag the map and tap Add to add a point on the map. Tap to save.
Tap to use the field.
Set task and route parameters respectively, drag to adjust the flight direction of the route, and save.
Tap , check the aircraft status and task settings, and move the slider to take off. The aircraft will perform the operation automatically.

• Only take off in open areas and set an appropriate Connection Routing and RTH Altitude according to the operating environment.
• An operation can be paused by moving the control stick slightly. The aircraft will hover and record the breakpoint.
• After that, the aircraft can be controlled manually. Select the operation again to continue. The aircraft will return to the breakpoint automatically and resume the operation. Pay attention to aircraft safety when returning to a breakpoint.
• In Route Operation mode, the aircraft is able to circumvent obstacles, which is disabled by default and can be enabled in the app. If the function is enabled and the aircraft detects obstacles, the aircraft will slow down and circumvent the obstacles and return to the original flight path.
• Users can set the action the aircraft will perform after the operation is completed in the app.

More Operation Modes and Functions
Refer to the user manual for more information about the A-B Route, Manual, Manual Plus, and Fruit Tree operation modes, and on how to use functions such as Connection Routing, Operation Resumption, System Data Protection, and Empty Tank.

Maintenance

Clean all parts of the aircraft and remote controller at the end of each day of spraying after the aircraft returns to a normal temperature. DO NOT clean the aircraft immediately after operations are completed.
A. Fill the spray tank with clean water or soapy water and spray the water through the sprinklers until the tank is empty. Repeat the step twice more.
B. Remove the spray tank strainer and sprinklers to clean them and clear any blockage. Afterwards, immerse them in clean water for 12 hours.
C. Make sure that the aircraft structure is completely connected so that it can be washed directly with water. It is recommended to use a spray washer filled with water to clean the aircraft body and wipe with a soft brush or wet cloth before removing water residue with a dry cloth.
D. If there is dust or pesticide liquid on the motors, propellers, or heat sinks, wipe them with a wet cloth before cleaning the remaining water residue with a dry cloth.
E. Wipe the surface and screen of the remote controller with a clean wet cloth that has been wrung out with water.
Refer to the disclaimer and safety guidelines for more information on product maintenance.

Fly Safe

It is important to understand some basic flight guidelines, both for your protection and for the safety of those around you.

1. Flying in Open Areas: pay attention to utility poles, power lines, and other obstacles. DO NOT fly near or above water, people, or animals.
2. Maintain Control at All Times: keep your hands on the remote controller and maintain control of the aircraft when it is in flight, even when using intelligent functions such as the Route and A-B Route operation modes and Smart Return to Home.
3. Maintain Line of Sight: maintain visual line of sight (VLOS) with your aircraft at all times and avoid flying behind buildings or other obstacles that may block your view.
4. Monitor Your Altitude: for the safety of manned aircraft and other air traffic, fly at an altitude lower than 100 m (328 ft) and in accordance with all local laws and regulations.

Visit https://www.dji.com/flysafe for more information on critical safety features such as GEO zones.
Flying Considerations

1. DO NOT use the aircraft to spray in winds exceeding 6 m/s.
2. DO NOT use the aircraft in adverse weather conditions such as snow, fog, winds exceeding 6 m/s, or heavy rain exceeding 25 mm (0.98 in).
3. DO NOT fly more than 4.5 km (14,763 ft) above sea level.
4. The DJI Agras app will intelligently recommend the payload weight of the tank according to the current status and surroundings of the aircraft. When adding material to the tank, the max weight should not exceed the recommended value. Otherwise, the flight safety may be affected.
5. Make sure that there is a strong GNSS signal and the D-RTK antennas are unobstructed during operation.

Return to Home (RTH)
The aircraft will automatically return to the Home Point in the following situations:
Smart RTH: user presses and holds the RTH button.
Failsafe RTH: the remote controller signal is lost.
Low Battery RTH: the aircraft battery level reaches the preset low battery threshold.
The aircraft decelerates and then brakes and hovers if there is an obstacle within 20 m of the aircraft. The aircraft exits RTH and waits for further commands.
***** The action of the aircraft when the remote controller signal is lost or the aircraft battery level is low can be set in the app. Failsafe RTH and Low Battery RTH will only be available if RTH is set.

• Obstacle avoidance is disabled in Attitude mode (which the aircraft enters in situations such as when the GNSS signal is weak) and is not available if the operating environment is not suitable for the radar modules or binocular vision system. Extra caution is required in such situations.

Pesticide Usage

1. Avoid the use of water-insoluble pesticides as much as possible as they may reduce the service life of the spraying system.
2. Pesticides are poisonous and pose serious risks to safety. Only use them in strict accordance with their specifications.
3. Use clean water to mix the pesticide and filter the mixed liquid before pouring into the spray tank to avoid blocking the strainer.
4. Effective use of pesticides depends on pesticide density, spray rate, spray distance, aircraft speed, wind speed, wind direction, temperature, and humidity. Consider all factors when using pesticides.
5. DO NOT compromise the safety of people, animals, or the environment during operation.

It is important to understand the basic flight guidelines, both for your protection and for the safety of those around you.
Make sure to read the disclaimer and safety guidelines.

Aircraft

The Agras T40 has a truss-style design with arms that can be folded to reduce the body size, making the aircraft easier to transport. The all-new integrated spraying system can quickly be swapped with a spreading system with a spreading payload of up to 50 kg.
The spatial intelligent sensing system includes active phased array radars and binocular vision to ensure flight safety. Boasting a 12MP UHD FPV camera with a tiltable gimbal, the aircraft can automatically collect HD field images for local offline reconstruction to assist in precise field planning. Using the P4 Multispectral and DJI Agras Intelligent Cloud, prescription maps can be generated in order to perform variable rate fertilization.
The coaxial twin rotor structure produces strong winds so that pesticides are able to penetrate thick canopies for thorough spraying. The spraying system is equipped with the brand new magnetic drive impeller pumps, dual atomized sprinklers, and anti-drip centrifugal valves. When used with the weight sensors, the spraying system provides real-time liquid level detection and improves spraying efficiency while saving liquid pesticide.
Core modules adopt potting technology and the aircraft has a protection rating of IPX6K (ISO 20653:2013) so that the aircraft body can be washed directly with water.

1. Propellers
2. Motors
3. ESCs
4. Aircraft Front Indicators (on two front arms)
5. Frame Arms
6. Folding Detection Sensors (built-in)
7. Spray Lance| 8. Sprinklers
9. Spray Tank
10. Delivery Pumps
11. FPV Camera
12. Binocular Vision System
13. Spotlights
14. Heat Sinks
15. Active Phased Array Omnidirectional Radar| 16. Active Phased Array Backward and Downward Radar
17. Intelligent Flight Battery
18. Landing Gear
19. OCUSYNC™ Image Transmission Antennas
20. Onboard D-RTK™ Antennas
21. Aircraft Rear Indicators (on two rear arms)
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Remote Controller

The next generation DJI RC Plus (Agras) remote controller features DJI O3 Agras, the latest version of the signature OcuSync image transmission technology, and has a max transmission distance of up to 7 km (at an altitude of 2.5 m)[¹] . The remote controller has a high-performance 8-core CPU and a built-in 7-in high brightness touchscreen powered by the Android operating system. Users can connect to the internet via WiFi or the DJI Cellular Dongle. Operations are more convenient and accurate than ever before thanks to the revamped DJI Agras app design and a wide range of buttons on the remote controller. With Mapping mode added to the app, users can complete offline reconstructions and perform precise field planning without the need of extra devices. The remote controller has a maximum operating time of 3 hours and 18 min with the high-capacity internal battery. Users can also purchase an external battery separately to be used to supply power to the remote controller and fully meet the requirements for long and high-intensity operations.

1. External RC Antennas
2. Touchscreen
3. Indicator Button (reserved)
4. Control Sticks
5. Internal Wi-Fi Antennas
6. Back Button
7. L1/L2/L3/R1/R2/R3 Buttons
8. Return to Home (RTH) Button| 9. Microphones
10. Status LED Indicator
11. Battery Level LEDs
12. Internal GNSS Antennas
13. Power Button
14. 5D Button (customizable)
15. Flight Pause Button (reserved)
16. Button C3
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17. Left Dial
18. Spray/Spread Button
19. Flight Mode Switch
20. Internal RC Antennas
21. microSD Card Slot
22. USB-A Port
23. HDMI Port
24. USB-C Port| 25. FPV/Map Switch Button
26. Right Dial
27. Scroll Wheel (reserved)
28. Handle
29. Speaker
30. Air Vent
31. Reserved Mounting Holes
32. Button C1
33. Button C2
34. Rear Cover
35. Battery Release Button
36. Battery Compartment| 37. Rear Cover Release Button
38. Alarm
39. Air Intake
40. Dongle Compartment
41. Strap Bracket

[1] The remote controller is able to reach its maximum transmission distance (FCC/NCC: 7 km (4.35 mi); SRRC: 5 km (3.11 mi); CE/MIC: 4 km (2.49 mi)) in an open area with no electromagnetic interference and at an altitude of approximately 2.5 m (8.2 ft).

Specifications

• Aircraft

50 kg (inc. battery)
Max Takeoff Weight[1]| Max takeoff weight for spraying: 90 kg (at sea level)
Max takeoff weight for spreading: 101 kg (at sea level)
Max Diagonal Wheelbase| 2,184 mm
Dimensions| 2,800×3,150×780 mm (arms and propellers unfolded)
1,590×1,930×780 mm (arms unfolded and propellers folded)
1,125×750×850 mm (arms and propellers folded)
Hovering Accuracy Range (with strong GNSS signal)| D-RTK enabled: Horizontal: ±10 cm, Vertical: ±10 cm
D-RTK disabled:
Horizontal: ±60 cm, Vertical: ±30 cm (radar module enabled: ±10 cm)
Operating Frequency[²]| 2.4000-2.4835 GHz, 5.725-5.850 GHz
Transmitter Power (EIRP)| 2.4 GHz: <20 dBm (SRRC/CE/MIC), <33 dBm (FCC)
5.8 GHz: <33 dBm (SRRC/FCC), <14 dBm (CE)
RTK/GNSS Operating| GPS L1/L2, GLONASS F1/F2, BeiDou B1/B2, Galileo E1/E5
Frequency| GNSS: GPS L1, GLONASS F1, Galileo E1, BeiDou B1
Hovering Time[³]| No payload: 18 min (takeoff weight of 50 kg with a 30000 mAh battery)
Fully loaded for spraying: 7 min (takeoff weight of 90 kg with a 30000 mAh battery)
Fully loaded for spreading: 6 min (takeoff weight of 101 kg with a 30000 mAh battery)
Max Configurable Flight Radius| 2,000 m
Max Wind Resistance| 6 m/s
Operating Temperature| 0° to 45° C (32° to 113° F)

• Propulsion System
Motors

Propellers

• Dual Atomized Spraying System
Spray Tank

Sprinklers

a flight speed of 7 m/s)

Delivery Pumps

• Active Phased Array Omnidirectional Radar

FOV: Horizontal 360°, Vertical ±45°
Working conditions: flying higher than 1.5 m over the obstacle at a speed no more than 7 m/s
Safety limit distance: 2.5 m (distance between the front of propellers and the obstacle after braking)
Obstacle avoidance direction: omnidirectional obstacle avoidance in the horizontal direction.
Obstacle sensing range (upward): 1.5-30 m
FOV: 45°
Working conditions: available during takeoff, landing, and ascent when an obstacle is more than 1.5 m above the aircraft.
Safety limit distance: 3 m (distance between the top of aircraft and the obstacle after braking)
Obstacle avoidance direction: upward

• Active Phased Array Backward and Downward Radar

Stabilization working range: 1.5-30 m
Obstacle Avoidance[5]| Obstacle sensing range (backward): 1.5-30 m
FOV: Horizontal ±60°, Vertical ±25°
Working conditions: available during takeoff, landing, and ascent when the distance between the rear of aircraft and the obstacle is more than 1.5 m and the aircraft speed is no more than 7 m/s.
Safety limit distance: 2.5 m (distance between the front of propellers and the obstacle after braking)
Obstacle avoidance direction: backward

• Binocular Vision System

• Remote Controller

high brightness of 1200 cd/m²
Operating Temperature|  Less than one month: -30° to 45° C (-22° to 113° F)
One to three months: -30° to 35° C (-22° to 95° F)
Three months to one year: -30° to 30° C (-22° to 86° F)
Storage Temperature Range| Three months to one year: -30°
Charging Temperature| 5° to 40° C (41° to 104° F)
Internal Battery Chemical| LiNiCoAIO2
System|
Internal Battery Runtime| 3 hours 18 minutes
External Battery Runtime| 2 hours 42 minutes
Charging Time| It is recommended to use a locally certified USB-C charger at a maximum rated power of 65 W and maximum voltage of 20 V such as the DJI 65W Portable Charger.
Charging Type| 2 hours for internal battery or internal and external battery (when remote controller is powered off and using a standard DJI charger)

O3 Agras

5.8 GHz: <33 dBm (FCC), <14 dBm (CE), <23 dBm (SRRC)
Max Transmission Distance| 7 km (FCC), 5 km (SRRC), 4 km (MIC/CE) (unobstructed, free of interference, and at an altitude of 2.5 m)

Bluetooth

1. The DJI Agras app will intelligently recommend the payload weight limit for the spread tank according to the current status and surroundings of the aircraft. Do not exceed the recommended payload weight limit when adding material to the spread tank. Otherwise, the flight safety may be affected.

2. 5.8 and 5.1 GHz frequencies are prohibited in some countries. In some countries, the 5.1 GHz frequency is only allowed for use indoors.

3. Hovering time acquired at sea level with wind speed lower than 3 m/s and a temperature of 25° C (77° F). For reference only.
   The data may vary depending on the environment. Actual results shall be as tested.

4. The spray width depends on the actual operation scenarios.

5. The effective sensing range varies depending on the material, position, shape, and other properties of the obstacle.

Download the user manual for more information:
https://www.dji.com/t40/downloads

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This content is subject to change without notice.
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References

• DJI - The World Leader in Camera Drones/Quadcopters for Aerial Photography
• 大疆农服 for Android(64)
• DJI - The World Leader in Camera Drones/Quadcopters for Aerial Photography
• DJI - Official Website

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