Calibration Failed Screen - Garmin G1000 Maintenance Manual

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If any of the three measurements (Altitude, Vertical Speed, Power On Time)
are outside of their respective displayed limits, the displayed measurement
will appear in red, and the 'OK' button will be unavailable (grayed-out). If
successful calibration is not achievable, clicking 'Cancel' will halt the program
and produce the below popup message.
14. After the 0 feet calibration is complete, the 'Set altitude to 11,000 ft' screen appears.
15. Per the on-screen instructions, set the pressure control system to a pressure altitude of
11,000 feet.
16. Allow the on-screen altitude reading to stabilize, then click 'OK'.
17. After the 11,000 feet calibration is complete, the 'Set altitude to 30,000 ft' screen
appears.
18. Per the on-screen instructions, set the pressure control system to a pressure altitude of
30,000 feet.
19. Allow the on-screen altitude reading to stabilize, then click 'OK'.
20. After the 30,000 feet calibration is complete, the 'Set altitude to 41,000 ft' screen
appears.
21. Per the on-screen instructions, set the pressure control system to a pressure altitude of
41,000 feet.
22. Allow the on-screen altitude reading to stabilize, then click 'OK'.
23. After the altitude calibrations are complete, the 'Program Calibration to Unit?' screen
(Figure 5-9) appears. Click 'OK' to program the new calibration to the GDC 74(X) unit.
Before the new calibration is written to the unit, the program stores the current
calibration to a file named CAL_(serial_num)_YYYYMMDD_ HHMMSS.txt that
can be used to restore the original calibration back to the unit if needed (refer
to the "To Restore Original Calibration" section).
Page 5-58
Rev. B
NOTE
Figure 5-9. Calibration Failed Screen
NOTE
G1000 System Maintenance Manual
190-00907-00