3DR H520-G, Flight Manual

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5.0 TROUBLESHOOTING
5.1 BATTERY RECOMMENDATIONS
• Be certain to never completely drain an H520-G battery. Batteries should be stored at 30-50%
charge, and never stored at full charge.
• The DY5 multi-charger for the H520-G battery is capable of discharging batteries, preparing them
for storage.
• Flight time is estimated to be approximately 25 minutes per battery (E90 camera).
5.2 AIRCRAFT CALIBRATIONS
Compass, Accelerometer and Gyro calibrations are required prior to launching the H520-G for the first time.
This is for safety and proper operation of the aircraft. See 3.2 Calibrations section for more information.
It is also highly recommended that the aircraft always be recalibrated after each software/firmware update.
5.3 RETURN HOME/RETURN TO LAUNCH (RTL)
During RTL Mode the pilot may maneuver the H520-G to assist in automatic landings.
As the H520-G nears the ground, the pilot should refrain from adjusting the controls as the H520-G may tip
over when being maneuvered as the legs touch down.
Return Home Mode will cause an automatic landing; the pilot should be prepared to use the throttle stick to
shut down the motors (keeping it all the way down) although the aircraft is expected to disarm/shut down
motors on its own.
Note: Using the landing gear switch, lower the gear before attempting to land, landing gear will NOT be
automatically deployed when manually landing the aircraft.
5.4 PAIRING TROUBLESHOOTING
1. Power up the ST10C controller and connect it to the iPad via Lightning cable
2. Power up the aircraft
3. Open up the Site Scan App, login and select any Project
4. Select the H520-G aircraft in the Site Scan App. Telemetry status will show “Connecting”
5. Access the pairing menu go to: Global Settings → Aircraft Settings → Remote Controller Pairing
6. Tap Pair with [PAYLOAD*]
7. [PAYLOAD*] pairing should begin after a successful aircraft pairing; the default password will
automatically be typed in: 1234567890
8. If pairing process is successful, the blue light on the front of the controller will stop blinking after a
few seconds and become solid blue
*PAYLOAD defined in app depending on camera model or other payload