Dynon Avionics EFIS-D10A Installation Guide - Manual (Page 30)

EFIS Calibration and Configuration
4-4 EFIS-D10A Installation Guide
aircraft to point to magnetic North and repeat the process, starting with pushing the
GNDNRT button.
3. Now proceed to take off for the in-flight part of the calibration. After reaching a safe
altitude, head the plane as close as possible to magnetic North. Press the AIRRGT button
(again, the button’s text will toggle to DONE – wait until completing the maneuver
before pressing this), and continue holding a steady North heading for 10 seconds. Then
make a 30 degree banked turn to the right for 540 degrees. The maneuver ends with the
aircraft pointing South. Fly the maneuver as smooth as possible since this will give you
better results. At the end of the maneuver, while still pointing South, press the DONE
button.
4. Maneuver the aircraft to point to magnetic North again. Press the AIRLFT button
(toggling it to DONE – again, refrain from pressing until the maneuver is complete).
Continue holding a steady heading (North) for 10 seconds, and then make a 30 degree
banked turn to the left for 540 degrees. The maneuver ends with the aircraft pointing
South. Fly the maneuver as smooth as possible since this will give you better results. At
the end of the maneuver, while still pointing South, press the DONE button.
5. At any point in the calibration, you may redo a maneuver by pressing the appropriate
button and repeating that step. The order in which you do the 3 maneuvers is not critical
as long as all three maneuvers are performed completely without cycling the power to the
EFIS-D10A.
6. When you are satisfied with the three maneuvers, press END. This will cause the EFIS-
D10A to calculate the values needed for calibration. This process can take as long as 10
minutes, during which your EFIS-D10A will appear “frozen.” A message will be
displayed onscreen: CALCULATING MAGNETIC CALIBRATION VALUES.
7. Wait for the message CALIBRATION COMPLETE before attempting to use the EFIS-
D10A or remove power. Press BACK to leave the menu.
At this point the calibration is complete. We suggest you evaluate the performance of the EFIS-
D10A heading feature, preferably on a compass rose, and decide if the performance is acceptable
to you. If the resultant compass accuracy is not acceptable, you can either repeat the calibration
process attempting to fly the maneuvers more smoothly, or purchase, install, and calibrate the
Dynon Avionics EDC-D10A Remote Compass.
You will need to repeat this process anytime you move the EFIS-D10A to a new location in your
plane or change the magnetic or electrical characteristics of the nearby environment (i.e. adding
or removing other electrical instruments). Changing geographic location should have no effect
on your heading readings after a user calibration.
Troubleshooting
During the calibration process you may receive one of the following errors. Next to each one is
the corrective action required.
 WARNING: MAGNETIC INCLINATION NOT SET. You have not entered the magnetic
inclination into the EFIS-D10A yet. Please see the “Entering the Inclination Angle” section
above.