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Thread: Magnetometer Align - Doesn't complete

  1. #1

    Magnetometer Align - Doesn't complete

    Any insight on the Alignment process if it doesn't complete?

    After running through the entire process, with two spins or so, the "Point to True North" prompt comes up. After setting aircraft to true north, the prompt disappears. Without any confirmation, the AF4500 goes back to home screen (EFIS). Repeated attempts yield same result. True north, then no confirmation that it was successful.

    The Slaved 3400 data is slightly off as well. Pitch adj is locked out, and heading is off 4° from the AF4500, along with the wind vector. How do you match the 3400 to the AF4500, will alignment fix that?


    Latest updates applied

    AF4500 with "slaved" 3400 (as 2nd EFIS on Copilot side)

    Thanks!

  2. #2
    1. Do you have the new Red AHRS/Magnetometer in the same unit? If you have the RED AHRS/Magnetometer it does not need the point to North.

    2. The last step with the Crossbow AHRS and Remote gold Magnetometer is point to MAGNETIC NORTH not True North. This step is only a verification and does not adjust anything, if you use the EFIS DG to find Magnetic North it should pass.

    3. The remote AF-3400 should be displaying the same Magnetic Heading from the screen with the AHRS. Are you sure you are not getting Magnetic heading and GPS track confused? The heading on the mag screen is GPS track when the plane is moving.
    Rob Hickman
    Advanced Flight Systems Inc.

  3. #3
    Hey Rob thanks! Your support is amazing!

    Will repeat and use Mag North off the AHRS, that should do it hopefully.

    Any reason the 3400 is not fully linked to the 4500? In straight and level flight the 4500 is at 0 pitch but the 3400 shows about -20° pitch. The pitch adj is locked out and can't be moved... there are also subtle differences in things like the winds aloft vector. I feel like I'm missing a "sync" setting similar to the time "NET SYNC"...?

    Thanks again!

  4. #4
    What version of software are you running on both screens?

    Have you tried adjusting the pitch on the 4500 to see if it updates the 3400?
    Rob Hickman
    Advanced Flight Systems Inc.

  5. #5
    Hey Rob! Many thanks to you and Ken. Updated both sides to V8.08.12 and all is well ! Thanks :-)

    Will report back on the Mag Align after we give 'er a try tomorrow.

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