User guide

60
Fuel Flow Calibration
The accuracy of the fuel computer is affected by the value of Counts per .01 gals (K Factor). The Counts per .01 gals
(K Factor) sets the calibration of the instrument to match the flow transducer and the variations in the installation. After
running a tank of fuel use the following formula to adjust the accuracy.
The Counts per .01 gals (K Factor) is adjusted from the Fuel Flow/Computer page in Instrument Calibration.
New Counts per .01 gals = (Old Counts per .01 gals) x (Disp GAL USED/PUMP GALS)
Fuel Computer Modes
The fuel computer display can set to display any of the following by pressing the [MODE] button. The mode label will be
RED if the fuel computer gallons remaining amount does not match the fuel tanks.
Gallons Used -> Gallons Remaining -> Hours Remaining
If the system is connected to a GPS you will also have:
Kts per Gallon -> Miles per Gallon -> Gallons Remaining at Waypoint -> Gallons Required to Waypoint
WARNING: The Fuel Computer is only accurate when the fuel-flow sensor is calibrated properly and fueling stops are entered
correctly.
GAL USED Gallons Used
Displays the gallons used since the last time the fuel computer was set.
GAL REM Gallons Remaining
Displays the gallons remaining, calculated from the last time the fuel computer was set.
HRS REM Hours Remaining
Displays the hours remaining, calculated from the last time the fuel computer was set and the current fuel flow rate.
WARNING!! The following are based on the current fuel flow and the GPS ground speed. If you change
power settings or the Winds change they will not be correct!
NM/GAL Nautical Miles per Gallon
Displays the current ground distance traveled in nautical miles per gallon of fuel.
SM/GAL Statute Miles per Gallon
Displays the current ground distance traveled in statute miles per gallon of fuel.
GREM AT Gallons Remaining At Waypoint
Displays the fuel amount that should be remaining at the next GPS waypoint.
GREQ TO Gallons Required to next Waypoint.
Displays the fuel amount of fuel needed to get to the next GPS waypoint. This is based on the current fuel flow and GPS
data.
Adding Fuel to the Fuel Computer
WARNING: Every time fuel is added or removed from the aircraft tanks one of the following operations must be
done to protect the accuracy of the fuel computer.