Garmin G5 Electronic Flight Instrument Part 23 AML STC Maintenance Manual 190-01112-11
Rev. 7
Page 40 of 54
Calibration field. See Figure 7-2 for the completed equations.
Figure 7-1, Attitude Calibration Example
Figure 7-2, Example of Calibration Equations
7.5.2 Calibration Procedure C: Air Data Static Pressure Calibration
NOTE
All selections made in configuration mode in this section are made on the G5 ID strapped as #1.
In a single G5 installation, Unit ID #1 is always the single G5 unit. In a Dual G5 installation,
Unit ID #1 is the G5 in the Attitude or Turn Coordinator position.
The Air Data configuration page has a selection for static pressure calibration. This procedure is used to
perform an altimeter re-calibration. The altitude pressure sensor used in the G5 is very low drift and
does not typically require re-calibration.
The static pressure calibration requires the use of a pressure control system (test set) with an altitude
accuracy of at least ±5 ft. at sea level and ±20 ft. at 30,000 ft. It is necessary to re-calibrate to sea level
(0 ft.), 10,000 ft., 20,000 ft., and optionally to 30,000 ft. The operator is allowed to finish the calibration
at the end of the 20,000 ft. calibration if the aircraft operational ceiling is below 20,000 ft.
CAUTION
To avoid damaging the G5 pressure sensors, both the pitot and static ports must be connected to
the test set.
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