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FS-450 Fuel Scan
Main Tank Capacity
Enter the total capacity of the main tanks in the fuel flow units
selected. If you have tank tabs (but no auxiliary tanks) and
sometimes fill only to the tabs, set the main tank capacity to the
capacity up to the tabs.
Auxiliary Tanks
If you do not have auxiliary tanks or tank tabs, answer “No.” If you
answer “Yes,” you will be asked to input the capacity of the
auxiliary tanks in the fuel flow units selected. If you have tank tabs
and sometimes fill only to the tabs, set the auxiliary tank capacity
to the difference between full tank capacity and tab capacity. The
FS-450 does not differentiate fuel flow between the main and
auxiliary tanks; it tracks only total fuel in the aircraft.
Low Time Alarm Limit
Select the value of the time remaining, in minutes, that triggers the
alarm. Time remaining is calculated at the current fuel flow rate.
Low Fuel Alarm Limit
Select the value of the fuel remaining, in the selected fuel flow
units, that triggers the alarm. Fuel remaining is calculated at the
current fuel flow rate.
Carburetor?
Different response filters are used depending on whether your
engine is carbureted or fuel injected. The filters for a carbureted
engine have a slower response time to reduce sudden fluctuations
in readings. Select F=1, 2 or 3 where higher number is more
smoothing. Pick the lowest number that gives steady readings.
Fuel Return Transducer?
Single fuel flow transducer installations should have this parameter
set to No. If your installation is equipped with an additional fuel
flow transducer for return fuel, set this parameter to Yes.
