Garmin G3X Installation Manual page 468

7. When the calibration has completed "Success" or "Failure" will be displayed, press the DONE
softkey to return to the AHRS Configuration screen.
The magnetometer calibration (Calibration Procedure D) must be completed after each pitch/roll offset
calibration.
NOTE
The pilot may adjust the displayed pitch attitude in normal mode by using the PFD Setup
page (see G3X Pilot's Guide,190-01115-00). The maximum amount of pitch display
adjustment available in Normal Mode is +/- 2.5°. This feature should not be used to
compensate for a non-conforming GSU 25/GSU 73 installation that does not meet the
requirements of Calibration Procedure Pitch/Roll Offset Compensation.
NOTE
If the installation has multiple AHRS and the pitch/roll offset procedure is performed for
one AHRS, it should be performed on all other AHRS before moving the aircraft.
NOTE
If an additional ADHS is installed in the aircraft, or the mounting location of an existing
AHRS is changed, the pitch/roll offset compensation procedure must be performed again
for all installed AHRS units before moving the aircraft. This applies equally to all AHRS
units, including the GSU 25, GSU 73, and G5 backup display.
190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout
Rev. AA Page 31-16