14
2. “REM” (Remaining) Display Mode:
In the “REM” (Fuel Remaining) Display Mode, the FP-
5L will display the fuel in the aircraft tanks as follows:
A. When set to display in Gallons the display will
read in .1 Gal increments up to 199.9 Gals. and
1 Gal increments from 200 to 1999 Gals.
B. When set to display in Imperial Gallons the
display will read in .1 Gal increments up to
199.9 Gals. and 1 Gal increments from 200 to
1999 Gals.
C. When set to display in Pounds the display will
read in 1 Lb increments up to 1999 Lbs.
D. When set to display in Liters the display will
read in 1 Ltr increments up to 1999 Ltrs.
If the First Low Fuel Limit has been violated, a bar in the upper left corner of the display will be shown when
this mode is selected. If the Second Low Fuel Limit has been violated, a bar in the lower left corner of the display
will be shown when this mode is selected. See the "Pilot Programmable Settings" section of this manual to set the
two Low Fuel Limits.
Warning: The fuel remaining displayed by the FP-5L is not a measurement of the fuel in the tanks.
It is an amount calculated from the starting fuel level you programmed into the FP-5L, minus the fuel used while
the engine was running. When properly calibrated, the FP-5L can accurately measure the fuel used. It is
imperative the pilot verify the calibration of the FP-5L over many tanks of fuel before using the
"REM" and/or "USED" Modes as an indication of the fuel in the tanks or fuel used. Even after
verifying the calibration of the FP-5L it should never be used as the primary indicator of fuel quantity
in the tanks. It is important the pilot visually check/measure the fuel quantity for each tank before
takeoff and cross-check these readings against the fuel level gauges and the FP-5L. The FP-5L reminds
you to do this by blinking the “REM” LED and displaying the current fuel remaining in the tanks each time the
aircraft power is turned on. Also, it is important the pilot use preflight and flight planning techniques, in
accordance with the FARs, which will help ensure the proper amount of fuel is on board the aircraft
before takeoff.
While in flight the FP-5L readings should only be used to cross-check the fuel level gauges, calcula-
tions of the fuel on board from flow rates specified in the specification for your aircraft and calculations
of the fuel on board from flow rates that you measured from previous flights. The use of the FP-5L
does not eliminate or reduce the necessity for the pilot to use good flight planning, preflight and in-
flight techniques for managing fuel. If you are not familiar with these techniques, contact the FAA to
acquire proper training.
3. Auto Calibrate Mode:
If you find the FP-5L is not displaying the Fuel Remaining in the tank(s) or Fuel Used Since Fill Up accu-
rately, you can enter the "Auto Calibrate Mode" and have the FP-5L automatically calibrate the K Factor. This
should be done when you have used more than 1/2 tank of fuel and you have just filled the tank(s) with fuel.
Gal
12.3
To Next Page
Loading...
Need help?
General
