Dynon Avionics FlightDEK-D180 Pilots Users Guide - Manual (Page 104)

Appendix
11-8 FlightDEK-D180 Pilot’s User Guide
Alert Message Description End condition
ATTITUDE
RECOVERING… This alert is displayed anytime the unit is rotated
at a rate faster than 150 degrees/second or the unit
is powered on with airspeed applied. Rotating the
unit faster than this threshold will saturate the
gyros, leading to potentially erroneous display.
The blue/brown horizon indication will turn grey
and black to indicate that the artificial horizon is
not currently a trusted source. Note that this alert
only appears when airspeed is non-zero; using the
FlightDEK-D180 on the bench will not trigger
this alert. The grey/black horizon indication and onscreen
message will remain until the unit has resumed
normal operation. In the case of rotation rate
greater than 150 degrees/second, the unit enters
a fast recovery mode and usually recovers
within 5 seconds of coordinated flight.
TEMPERATURE
UNSTABLE When the unit is turned on after having been off
for a long period, its internal temperature will rise
above ambient at a fast rate. This fast change in
temperature can sometimes reduce the reliability
of the output of the sensors. Therefore, this alert
is displayed and the horizon indication is changed
from blue/brown to grey/black. The screen remains normal color, but the
message is displayed until the temperature
within the unit has stabilized. This temperature
instability should last no longer than 2 minutes.
For this reason, it is a good idea to turn the unit
on before you run through any of the preflight
procedures, so that it will be ready by the time
you are ready to fly.
TEMPERATURE OUT
OF SPEC The temperature inside the unit is outside of
-30ºC to 50ºC. The screen remains normal color, but the
message is displayed until the temperature
within the unit is within the specified range.
This is most common in unventilated panels
during hot periods. If you continue to see this
alert, provide more airflow to the space around
the FlightDEK-D180.