Garmin G1000 User Manual

G1000 V8.XX S/W Load and Post Install Checkout – Columbia 350/400 Page 3-31
190-00577-04 Revision 1
Engine/Airframe
Indicator
Desired Reading Airframe Check
R Bus Volts
GPU voltage (R Battery volts when
GPU disconnected)
Both
* NOTE: Accuracy of indication is ±3A, so value may be positive for small discharge currents.
The aircraft engine can now be started as needed to carry out the remaining GRS/GMU calibrations listed
in Section 3.12. Follow the procedures in the applicable Pilot’s Operating Handbook, and start the
engine. While the starter is engaged verify that the STARTER ENGD annunciation is displayed on the
PFD. Monitor engine instruments during startup for proper operation. When the engine is running, verify
the following sensor indications at the appropriate EIS section (see Figure 3-7):
Engine/Airframe
Indicator
Desired Reading Airframe Check
L Alternator Amps
Greater than 0 and L ALT OUT
annunciation not displayed.
Both
R Alternator Amps
Greater than 0 and R ALT OUT
annunciation not displayed.
Both
L Bus Volts
Approximately 28 volts and L BUS
OFF annunciation not displayed.
Both
R Bus Volts
Approximately 28 volts and R BUS
OFF annunciation not displayed.
Both
With the engine at 1100 RPM or higher, verify that the OIL PRES LOW and FUEL PUMP annunciations
are not displayed on the PFD.
3.12 Final GRS 77/GMU 44 Calibration Procedures
The Magnetometer Calibration Procedure (Calibration Procedure B) must be carried out at a site that is
determined to be free of magnetic disturbances. If it is unsure whether the site is ‘clean’ the technician
should verify that the site is ‘clean’ by following the guidance provided in Section 3.12.1. The technician
may skip Section 3.12.1 if the site condition is acceptable.
3.12.1 Site Evaluation of Magnetic Disturbances for Magnetometer Calibration
Procedure (Optional)
NOTE
Typically, a compass rose is an acceptable location to perform the
magnetometer calibration procedure. However, because not all compass
roses are well maintained, even an existing compass rose should be
regularly evaluated using the method described here to determine if it is
free of magnetic disturbances. If evaluation of an existing compass rose
indicates that magnetic disturbances are present, then an alternative
location must be found to perform the Magnetometer Calibration
Procedure.
A G1000-equipped Columbia 350/400 airplane can be used to evaluate a candidate site for magnetic
disturbances and determine whether it is a suitable location to perform the magnetometer calibration
procedure. The magnetometer calibration procedure itself contains the logic to simultaneously survey the
location for magnetic cleanliness while it is computing the magnetometer calibration parameters.

Garmin G1000 Specifications

General

Brand	Garmin
Model	G1000
Category	Avionics Display
Language	English