Maintenance
Compass Calibration
Seahorse has calibrated your EX-2 and it shouldn't need to be re-calibrated again. But, if the drone
is hovering in a circular motion (toilet bowling) this is a sign the compass will need re-calibrating.
Pixhawk4 mini’s advanced GPS has a Worldwide database enabling compass settings to remain
current. There are two ways to calibrate the craft via the remote controller or the App.
Method 1 – Via App
Click the top left menu icon on the APP and select Compass Calibration from the dropdown menu
– follow the on-screen directions (rotate on all axis) and do not forget to remove the Quick Switch
after successful calibration to save. Ensure you are facing North when calibrating the drone.
Method 2 – Via Remote Controller
1. To activate the calibration mode, you need to move the left stick to the top and full right. Hold it
there until you hear the BEEP from the drone. When you hear the buzzer beep a regular
tone/beep, rotate the drone on all 6 AXIS for 1 minute until you hear another beeping tone. Check
the video tutorial on how to do this.
2. Remove the Quick Switch to turn the power off from the drone and re-power in the same way
above to SAVE the compass settings
3. Check the phone for a 3D fix on the top right.
If after the calibration the craft is unsteady or toilet bowling, land the drone safely and redo the
calibration process.
Any problems, please call Seahorse.
After Flight Maintenance
Drones require responsible operators that keep safety a top priority. To keep your drone safe, you
will need to maintain it properly. Drones require regular onboard electronic maintenance and
frame and motor care.
Clean everything regularly. Do the accelerometer calibration once per month or when the system
warns you. View the video on ACC calibration. Do the voltage meter calibration when the battery
voltage is not displaying accurately.
Voltmeter Calibration
Check the voltage reading on the app to the actual voltage of the battery by using the battery
Voltage/Cell checker. Connect (balance cable) the checker to the battery that is connected to the
drone.
To check and set the voltmeter via the APP, go to App menu at the top left and select parameters -
Scroll down and select parameter: BATT_VOLT_MULT
If the voltage on your phone is reading low compared to the actual battery voltage, then increase
the BATT_VOLT_ MULT value by 0.01 at a time until the Phone reading matches the reading using
the BX100 meter on the battery.
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Summary of Contents for EX-2 Pro
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