Dynon Avionics EFIS-D60 Pilots Users Guide - Manual (Page 31)

Appendix
EFIS-D60 Pilot’s User Guide 7-3
Alert Message Description End condition
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 EFIS-D60.
INTERNAL BATTERY
LOW You will see this alert only when operating the
unit solely off the internal backup battery. When
its voltage has dropped below a certain threshold,
you will see this alert. Additionally, the voltmeter
will be displayed onscreen. When you see this
alert, it is advisable that you turn the unit off by
pressing the POWER button in Main Menu 1. The alert will disappear when you press any
button; however, it is advised that you do not
ignore this alert, as it appears when the unit’s
internal battery has very little life left. This alert
will also go away upon the application of either
the external backup battery or Master Power. At
that point, the battery will begin charging off the
external power.