Zenmuse H20
Series
User Manual
16
©
2020 DJI All Rights Reserved.
The temperature measurement accuracy is affected by various factors:
1) Reflectivity of objects – shiny metals with high reflectivity will reflect more of the background
radiation and result in lower accuracy, whereas objects with matte surfaces will produce a higher
accuracy.
2) Temperature of background radiation – sunlight has a great influence on the temperature
measurement accuracy, direct or reected sunlight should be avoided from the infrared thermal
camera.
3) Air temperature and humidity – the temperature and humidity have been calibrated before delivery,
but some temperature measurement errors are inevitable. Extreme temperatures or humidity levels
will affect the measurement accuracy.
4) Distance between the camera and the object – the default distance used in calibration is 5 m, and
the temperature measurement is most accurate at this distance. Deviations from this distance will
lower the accuracy.
5) Emissivity of objects – the emissivity of the object will affect the temperature measurement
accuracy. Generally, accuracy increases proportionally to emissivity. Emissivity is affected by
factors such as the material, the roughness or the degree of oxidation of the object’s surface.
When measuring a blackbody 5 m away at a windless 25℃ indoors, the camera provides
an accuracy of up to ±2℃ or ±2% (whichever is the larger value). Since the emissivity of
different blackbody varies, this measurement result only represents the accuracy of the tested
blackbody, for reference only.
Updating Firmware
Ensure that the Zenmuse H20 series gimbal and camera is securely mounted onto the aircraft and
the aircraft is powered off. Ensure that there is enough free space on your microSD card and the
Intelligent Flight Batteries are fully charged.
1. Visit DJI ofcial website and go to Zenmuse H20 series download page.
2. Select the latest rmware to download.
3. Copy the downloaded rmware update le to the root directory of the microSD card.
4. Insert the microSD card into the microSD card slot of Zenmuse H20 series gimbal and camera.
5. Power on the aircraft, the gimbal and camera will start to perform an auto-check, then it will start to
update automatically and the buzzer will beep to indicate the status.
6. Restart the device after the rmware update is completed.
Alarm Description
4 short beeps An update le is detected, preparing for update.
1 long beep Updating rmware, do not stop the update.
1 long beep followed by 2 short beeps The rmware update was successful.
Continuous long beep
The rmware update failed, please try to update again.
Contact DJI support for help if needed.
Ensure that there is only one rmware update le on your microSD card.
Do not power off the aircraft or detach the gimbal and camera during updating the rmware.
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