Dynon Avionics EFIS-D10 Users Guide - Manual (Page 29)

5/25/2005 25
Operating Tips
•
If the outside temperature is below -30
°
C, let the unit run for at least 10 minutes before using it in flight. You
may see a TEMPERATURE OUT OF SPEC warning on the screen during this time. While this warning is
present, unit accuracy may be degraded. Waiting until the warning turns off will ensure that the unit has enough
time to heat itself up to a temperature at which the sensors will be accurate.
•
The static pressure sensor is sensitive to high rates of temperature change as is usually seen during the first few
minutes of unit operation. As a result, more accurate altitude measurements will be obtained if you wait for
about 5 minutes before setting the barometer to give a correct starting altitude.
•
During the first few minutes of a cold boot-up (i.e. the unit is turned on after having been off for at least 2
hours), the TEMPERATURE UNSTABLE warning may appear onscreen and the horizon will turn from
blue/brown to grey/black, alerting you to the possible inaccuracy of the unit’s altitude measurements.