Figure 5-7, Magnetometer Interference Test - Garmin G1000 Nxi System Maintenance Manual

Calibration Procedure E: Magnetometer Interference Test
A magnetometer interference test is available for troubleshooting and/or verifying a magnetically
'clean' installation of the GMU 44. This test exercises various devices on the aircraft that could
potentially affect the magnetic field as measured by the GMU 44.
This test is used to validate that no electronic device
produce a magnetic field sufficient to interfere
magnetometer.
installation or maintenance of electrical components on the aircraft and/or for
troubleshooting the GMU 44.
1. Initiate the AHRS magnetometer interference test procedure by performing the following
steps:
2. On PFD1, enter Configuration Mode and go to GRS/GMU Calibration page as shown in
Figure 5-7.
3. This page is protected and requires a keystroke password to perform this test. Press the
following softkeys in sequence: (as counted from left to right on lower bezel of MFD)
•
softkey 9
•
softkey 10
•
softkey 11
•
softkey 12
4. Select MAG INTERFERENCE TEST and press the PFD1 ENT key.
5. Follow the checklist items displayed on the PFD1, and press the ENT key as each one is
completed or confirmed.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
NOTE
It is highly recommended that this test be performed after

Figure 5-7, Magnetometer Interference Test

or magnetized components
with the operation of the GMU 44
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