Data Validity Requirements For Magnetometer Calibration Procedures; Configuration Mode Magnetometer Page Status Boxes - Garmin G3X Touch Installation Manual

For each Calibration Procedure, Table 34-5 lists the LRUs that require valid calibration data.
Table 34-5 Data Validity Requirements for Magnetometer Calibration Procedures
Magnetometer Calibration
Procedure
GMU 11 Mounting Orientation
Identification (if applicable)
Magnetometer Interference Test
Magnetometer Calibration
Table 34-6 lists the type of valid calibration data required to be output by each LRU for the Calibration
Procedures listed in Table 34-5.
Table 34-6 Configuration Mode Magnetometer Page Status Boxes
Status Box
Magnetometer Magnetometer LRU status valid
GPS Data 3D or 3D Differential GPS solution available
True Airspeed (TAS) available. NOTE: A valid outside air temperature (OAT)
Air Data
measurement is required for TAS to be valid.
Attitude (if
Magnetometer is receiving valid attitude data from ADAHRS
applicable)
The Magnetometer Configuration Page status boxes referred to in Table 34-5 and Table 34-6 are shown in
the following figure.
If removal and replacement of a GMU magnetometer unit is required after post-installation calibration has
been completed, the GMU 22 mounting rack or GMU magnetometer must not be moved. If the mounting
screws that secure the GSU 25/GSU 73 unit or the GMU magnetometer mounting rack are loosened for
any reason, post-installation calibration procedures, ADAHRS Unit Orientation
Pitch/Roll Offset Compensation
(Section 34.4.5.4), and GMU 11 Orientation
returned to service.
190-01115-01 G3X/G3X Touch Install Manual - GDU 4XX Config and Post Install Checkout
Rev. AC
Valid Status Required for
GSU 25 and GMU
Calibration
None
None
GPS
(Section 34.4.5.2), ADAHRS Static Pressure Calibration
(Section 34.4.6.1) must be repeated before the aircraft can be
Valid Status Required for
GSU 73 and GMU Calibration
(GMU 11 is not supported by
GPS or Air Data
Air Data and GPS
Valid Status
None
GSU 73)
(Section 34.4.5.1),
Page 34-22