Garmin G1000 Mooney M20TN - Manual (Page 37)

190-00647-00 Rev. A Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 1-27
SYSTEM OVERVIEW
D
ISPLAY
U
NITS
The Display Units Box on the System Setup Page allows configuration of the measurement units used for
the following displayed data:
• Navigation angle (auto, true)
• Distance and speed (metric, nautical)
• Altitude and vertical speed (feet, meters)
• Barometric pressure (inches of mercury,
hectopascals)
• Air temperature (Celsius, Fahrenheit)
• Fuel and fuel flow (gallons, imperial gallons,
kilograms, liters, pounds)
• Position (HDDD°MM.MM’, HDDD°MM’SS.S”,
MGRS, UTM/UPS)
For the navigation angle, if ‘Auto’ is selected, all track, course, and heading information is corrected to the
computed magnetic variation (MAG VAR) shown in the Display Units Box . The ‘True’ setting references
all information to true north.
Units of display for the flight instruments are unaffected when the display units for distance, speed,
altitude, and vertical speed are changed. Displayed engine parameter temperatures and pressures also
remain unaffected when display units for temperature or pressure are changed. Changing the fuel and fuel
flow units affects the display of parameters only on the AUX - Trip Planning Page.
Changing a display units setting:
1) Use the FMS Knob to select the System Setup Page.
2) Press the FMS Knob momentarily to activate the flashing cursor.
3) Turn the large FMS Knob to highlight the desired field in the Display Units Box.
4) Turn the small FMS Knob to select from a list of measurement units.
5) Press the ENT Key when the desired unit is highlighted.
6) To cancel the process without changing the units, press the CLR Key.
M
AP
D
ATUM
The Map Datum Box on the System Setup Page allows selection of the map datum to be used by the
G1000 from a list of datums available in the current aviation database. The aviation database contains over
100 map datums to adjust position reading to conform to specific paper charts (see Appendix E for a list of
available map datums.). The default datum setting is WSG 84. Per TSO C129a, the WSG 84 map datum
should be used in the United States.
For use outside the U.S., select the geodetic datum required by that country. If charts based on another
datum are being used, the G1000 should be set to use the same datum. Using a map datum that does not
match the paper charts can result in significant differences in position information. If paper charts are being
used for reference only, the G1000 still provides correct navigation guidance to the waypoints contained in
the database, regardless of the datum selected.
Changing the map datum:
1) Use the FMS Knob to select the System Setup Page.
2) Press the FMS Knob momentarily to activate the flashing cursor.