Garmin G3X - Page 503

190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 30-12
Table 30-1 describes the ADAHRS calibration procedures:
For each ADAHRS Calibration Procedure, Table 30-2 lists the LRUs that require valid calibration data.
Table 30-3 lists the type of valid calibration data required to be output by each LRU for the Calibration
Procedures listed in Table 30-2
.
Table 30-1 Post Installation Calibration Procedure Summary for ADAHRS Page
Procedure Name Procedure Description Installations Requiring Procedure
Unit Orientation
Configure ADAHRS
installation orientation
Required for all installations
Pitch/Roll Offset
Compensation
Level Aircraft Required for all installations
Engine Run-Up
Vibration Test
Validate vibration
characteristics of
installation
Required for all installations
ADAHRS Static
Pressure
Calibration
Altitude re-calibration
Only used when an ADAHRS has failed a periodic
altimeter test
Zero-Airspeed
Calibration
Airspeed Low End Noise
Compensation
Only used when directed to by Garmin Aviation
Product Support
Table 30-2 Data Validity Requirements for ADAHRS Calibration Procedures
ADAHRS Calibration
Procedure
Valid Status Required for
GSU 25 Calibrations
Valid Status Required for
GSU 73 Calibrations
ADAHRS Mounting Orientation
Identification
None None
Pitch/Roll Offset None GPS and Air Data
Engine Run-Up None GPS or Air Data
ADAHRS Static Pressure
Calibration
None None
Zero-Airspeed Calibration None N/A
Table 30-3 Configuration Mode ADAHRS Calibration Page Status Boxes
Status Box Valid Status
ADAHRS ADAHRS LRU status valid
GPS Data 3D or 3D Differential GPS solution available.
Air Data
True Airspeed (TAS) available. NOTE: A valid outside air temperature (OAT)
measurement is required for TAS to be valid