dji O3 Air Unit - Important Notice and Installation Guidelines; DJI O3 Air Unit Installation Method and Cooling Effect; Installation Guidelines

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DJI O3 Air Unit
User Manual
Important Notice and Installation Guidelines
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DJI O3 Air Unit Installation Method and Cooling Effect
DJI O3 Air Unit is integrated with both the image transmission module and the camera module.
Compared with the last generation DJI Digital FPV System, the size of DJI O3 Air Unit is reduced by
40%, while the power consumption is increased by 40%. Restricted by its cooling condition, extra
ventilation and heat dissipation measures are necessary when installing the air unit.
Standby Time (from cold start):
Environment temperature 25° C (77° F): 8 mins
Environment temperature 35° C (95° F): 5 mins
When installing the DJI O3 Air Unit, make sure that the RX and TX pins are correctly connected
to the flight control board. The air unit can apply different temperature control strategies for the
standby and ight states.
[1]
[1] DJI O3 Air Unit has two sets of temperature control strategies for the standby state and the ight state:
In the standby state, the protection system will be activated to automatically shut down the air unit after overheating.
In the ight state, there will be a prompt alert after overheating and the video recording will end. At this time, the video
transmission will remain connected and the aircraft must return and land within 30 seconds. If the temperature of the
internal IC board continues to rise, the protection system will be activated to shut down the air unit automatically.
Installation Guidelines
Recommended installation practices that are effective for ventilation and heat dissipation:
It is recommended to mount the air unit in a position close to the propellers (distance between
the air unit module and the propellers within 10 mm) so that the downwash can be effectively
utilized.
Use a heat conductive material to connect the aircraft frame and the air unit module. This will
dissipate heat to the carbon plate and other metal components of the frame. Conducting the
heat will extend the operating time.
DO NOT install the air unit in an enclosed area.
The metal casing of the DJI O3 Air Unit will become hot after being powered on. The air unit
should not be installed in a position that is easily accessible.