6 – Application – Cockpit
ELIOS 2 USER MANUAL
Page 69 of 106
Warning messages
To ensure the best experience with Elios and prevent failures, the application will issue warnings when
necessary. It is essential to take action as described in the table below when such warnings appear.
FAILURE TO TAKE THE NECESSARY ACTIONS AFTER A WARNING CAN HAVE CONSEQUENCES
RANGING FROM DIFFICULTY TO OPERATE TO SEVERE DAMAGE, LOSS OR PERSONAL INJURY.
Warning types
Multiple levels of importance are given to different warning messages, expressed using different colors.
COLOR SEVERITY
EXPLANATION
Blue
Information
Advice for improving the user experience of the Elios system; gives
recommended actions which are good for most cases but can be ignored
depending on the pilot skill level.
Yellow
Warning
Point that requires attention.
Red
Critical / Error
Point that requires immediate action. Safety of aircraft, people, and property
can be impacted, or flight can be made impossible.
Audible warnings
Low battery warnings trigger a flashing frame around the screen and an audible tone.
Make sure the System sound level of the tablet is raised so that the alarm tone can be heard, especially if flights
take place in a noisy environment.
Messages
Following is a list of actions that should be taken for a particlular error or warning message.
MESSAGE
REQUIRED ACTION / EXPLANATION
Critically low battery - Land
now
Aircraft battery has reached a very low level. This is critical; immediately
land the aircraft in safe conditions and replace the battery with a fully
charged one to continue flying. Discharging a battery to a too low voltage
can damage it irreversibly
Battery level unknown - Use
voltage and time
The battery that was plugged was not full, and the Elios is not able to
evaluate its real charge. It is advised to cancel the flight and use a freshly
charged battery instead. If the problem persists even when the battery was
freshly charged the battery is worn out and should be replaced.
With an aircraft running the latest firmware, when the critical battery
voltage level is reached, the corresponding warning is shown anyway with
the associated alarm sound
Controller battery low
Controller battery is low. Even if the controller does not discharge as fast as
the aircraft, consider charging it soon
Cold or damaged battery -
Cannot fly
The onboard system has evaluated the battery as risky. Batteries with the
same conditions can have critical issues during flight, including loss of
