Dynon Avionics EFIS-D10 Installation Guide User Manual
Page 18
EFIS-D10 Installation Manual
EFIS-D10 Installation Guide
Doc Num: 100006-000
Rev. C
9/11/2003 Page
18 of 24
significant trigonometric and curve-fitting functions while you perform these various maneuvers.
Simpler calibration processes do not perform these steps and suffer by being accurate only at
level attitudes. When properly completed, a magnetic calibration of this complexity will produce
a compass that is accurate during banked maneuvers.
It is crucial that compass heading calibration be done after the unit is completely integrated into
your panel. If the unit is calibrated away from the panel and then inserted at a later time, it will
be improperly biased by the unique magnetic field characteristics of your plane.
Before you begin, you must download and install both the EFIS-D10 Support Program and the
EFIS-D10 Magnetic Calibration program from the “Downloads” portion of our website. In order
to calibrate your EFIS-D10, you must input your location’s current dip angle into the EFIS-D10.
This is done via the PC. Before doing this step, you must obtain the dip angle (magnetic
inclination) for your geographic location. Connect to the internet and point your browser to
e you can input your ZIP
code (in the US) or your latitude and longitude. Once that data is inputted, you must select
“Compute” at the bottom of the page. When the results are displayed, look at the angle
underneath the heading, “I.” This is your magnetic inclination. With a PC connected to the
RS232 serial communications cable attached to the EFIS and the EFIS powered on, open up the
EFIS-D10 Support Program. Select the drop-down menu under Configuration and select “Set
Magnetic Inclination.” In the window that pops up, enter the degrees and minutes for your
magnetic inclination angle which you obtained from the aforementioned web page. Now, click
“Send to EFIS” to send that inclination angle to the EFIS-D10. This step must be performed
before the rest of the magnetic calibration process is completed.
Perform the first portion of the heading calibration on the ground in an area where you can
accurately determine magnetic North such as on a compass rose. Turn the EFIS-D10 on and let it
warm up for 10-15 minutes before proceeding. Turn all instruments on that you would normally
be operating during a flight, including the engine. Connect the laptop to the RS232
communications connector coming from
the EFIS-D10. Start up the EFIS-D10
Magnetic Calibration program. Ensure
that the PC is receiving data from the
EFIS-D10 by viewing the program
window. You should see a string of
numbers scrolling down the screen.
After following the procedures outlined
in the above paragraph, enter the menu
system on the EFIS-D10. Navigate to
the second main menu and press SETUP (refer to the drawing at right). From the SETUP menu
press the MAGCAL button.
NOTE: Pushing the GNDNRT, AIRRGT, or AIRLFT buttons in the following steps will not
result in any change on the EFIS display. However, the PC program’s display will change with
each button push.
1. With the plane in the normal flight state (engine running, all instruments and avionics
on), align the plane to point as close as possible to magnetic North. Press the GNDNRT
button and hold the plane still for 10 seconds. After the 10 seconds of holding still,