Dynon Avionics Remote Compass User Manual

Dynon Avionics Air equipment

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EDC-D10 Installation and Calibration


External Magnetometer EDC-D10 Installation and Calibration

Dynon Avionics

August 28, 2003


The Dynon Avionics external magnetometer EDC-D10 must be mounted according to the

following instructions for it to function correctly. All mounting hardware needs to be

non-ferrous material such as aluminum, plastic, or brass. Many stainless steel screws are

alloys with some ferrous material in them. If the item is attracted to a magnet, it should

not be used in the installation. The EDC-D10 needs to be mounted in a location as free

from magnetic interference as possible. This means away from any ferrous nuts, bolts,

and screws, aircraft tubing, and wires carrying any appreciable current such as strobe

light wiring.

The EDC-D10 must be mounted such that its orientation is as closely aligned with the

EFIS-D10 as possible. It should be mounted with the long axes parallel to the wings, the

electrical connector facing forward (towards the nose of the airplane), and the mounting

tabs on the bottom. The bracket used to hold the EDC-D10 must account for all

differences in angles between the EFIS-D10 and the EDC-D10. This includes pitch, roll,

and yaw. We recommend you use an electronic level that reads to 1/10


of a degree to

make sure the EDC-D10 is aligned with the EFIS-D10 in pitch and roll to better than



of a degree. Wiring instructions are included in the EFIS-D10 Installation Guide

on page 10.

Wiring Verification

Correct wiring installation can be easily verified once completed. Power on the EFIS-

D10 with the EDC-D10 connected to it. Observe the displayed heading and then hold

one of the earpieces of a headset near the front of the EFIS-D10. If the EDC-D10 is

correctly wired, you should see no change in the displayed heading (more than 5 degrees)

when the headset earpiece is near the EFIS-D10. If you see a substantial change in

heading, there is a communication problem between the EFIS-D10 and the EDC-D10.


The procedure for in-plane calibration of the EDC-D10 is different than described in the

EFIS-D10 Installation Guide. It involves pointing the aircraft in four directions, taking

data at each location using a laptop connected to the EFIS-D10, and having the laptop

calculate the calibration constants and upload them to the EFIS-D10.

To perform the calibration, you will need the following:

1) EFIS-D10 and EDC-D10 installed in aircraft with PC connection to the EFIS-D10


2) Laptop with the latest version of the EFIS Support Program installed (to input the

magnetic dip angle into the EFIS.)

3) Magnetic Dip angle known. Refer to the EFIS-D10 Installation Guide or the

EFIS Support Program help files for information about determining the magnetic

dip angle and loading it into the EFIS-D10.