User guide

79
Magnetometer Alignment
You will need to perform a Magnetometer alignment after the system has been
installed or any time the aircraft has had any major changes that could affect the
magnetometer. The Magnetometer alignment will need to be performed in an area
where you can easily rotate the aircraft. The alignment should be done with the
engine stopped and the aircraft electronics on. You will need to be prepared to
turn the plane and point the aircraft nose to Magnetic North.
You can access the Magnetometer alignment menu from the following buttons:
[EFIS] -> [SETTINGS] -> [AHRS] -> [MAG ALIGN]
After accessing the MAG Align menu press the [START] button and follow the on screen
directions.
Outside Air Temperature Transducer Installation
The OAT transducer P/N: 40305 is mounted on the airframe with a 3/8" hole where the exhaust will not affect
it. We have found that the bottom of the wing works well. The OAT sensor wires should be connected from
the EFIS Main Harness to the sensor with Fast On Terminals, Butt Connectors or with solder and heat
shrink.
CAUTION Static Sensitive Part: Always ground yourself before wiring.
OAT Calibration
1. Place the AF-3400/3500 into Instrument Calibration mode. Use the [NEXT] button to scroll down to OAT
and press [SELECT].
2. Adjust the Shift Adjust value until the OAT is reading correctly.
3. Press [SAVE]
Alarm Output
The system has an output that will be connected to ground if one of the gauges is in the RED warning band
or an input is configured to trigger the alarm. The Alarm Output can be used to drive a master warning light
on the panel.
If multiple screens are used, only ONE screens alarm output is needs to be utilized. All EFIS and Engine
alarms will be transferred to the main screen.
For wiring information see APPENDIX M: