Flight Planner/Calculator Functions; Fuel Range Rings; Glove Use / Covered Fingers; Demo Mode - Garmin GTN 625 Flight Manual

2.20 Flight Planner/Calculator Functions

The Fuel Planning page uses Fuel on Board or Fuel Flow as received from an on
board fuel totalizer, as entered by the pilot at system startup, or as entered by the
pilot when on the Fuel Planning page. This is not a direct indication of actual
aircraft fuel flow or fuel on board and those values are only used for the Fuel
Planning page. The fuel required to destination is only a calculated and
predicted value based on the data entered into the planner. It is not a direct
indication of how much fuel the aircraft will have upon reaching the destination.

2.21 Fuel Range Rings

The fuel range rings displayed on the moving map are intended for situational
awareness and do not represent a direct indication of endurance or fuel
remaining. The distance between the segmented green reserve ring and the
yellow zero fuel ring is 45 minutes by default. The reserve value can be changed
from the GTN map setup menu.
Fuel range data is derived by the interfaced fuel totalizer data. Data entered in
the Fuel Planning pages will not update the fuel range ring.

2.22 Glove Use / Covered Fingers

No device may be used to cover fingers used to operate the GTN unless the
Glove Qualification Procedure located in the Pilot's Guide/Cockpit Reference
Guide has been successfully completed. The Glove Qualification Procedure is
specific to a pilot / glove / GTN 725, 750 or GTN 625, 635, 650 combinations.

2.23 Demo Mode

Demo mode may not be used in flight under any circumstances.

2.24 Active Weather Radar

Radar is broadcasting energy while in Weather or Ground mapping modes. If
the GTN 750/725 system is configured to control an airborne weather radar unit,
observe all safety precautions, including:
Do not operate in the vicinity of refueling operations.
Do not operate while personnel are in the vicinity (approximately
20 feet) of the radar sweep area.
If a radar system is installed, it generates microwave radiation
and improper use, or exposure, may cause serious bodily
injury. Do not operate the radar equipment until you have read
and carefully followed the safety precautions and instructions
in the weather radar user manual and/or pilot's guide.
AFMS, Garmin GTN GPS/SBAS System
FAA APPROVED
CAUTION
190-01007-A2 Rev. 6
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