Electronics International FP-5L - Manual (Page 10)

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2. “REM” (Remaining) Display Mode:
In the “REM” (Fuel Remaining) Display Mode, the FP-5(L) 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 99.9 Gals. and 1 Gal increments from 100 to
999 Gals.
B. When set to display in Imperial Gallons the display will read in
.1 Gal increments up to 99.9 Gals. and 1 Gal increments from
100 to 811 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-5(L) 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-5, minus the fuel used while the
engine was running. When properly calibrated, the FP-5(L) can accurately measure the fuel used. It is impera-
tive the pilot verify the calibration of the FP-5(L) 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-5(L) it should never be used as the primary indicator of fuel quantity in the tanks. It is impor-
tant 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-5. The FP-5(L) 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 insure the proper amount of fuel is on board the aircraft before takeoff.
While in flight the FP-5(L) readings should only be used to cross-check the fuel level gauges, calculations 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-5(L) does not
eliminate or reduce the necessity for the pilot to use good flight planning, preflight and in-flight tech-
niques 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-5(L) 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-5(L) 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.
25.3
Gal