Electronics International FP-5L - Manual (Page 6)

4
2. Install the Fuel Flow Transducer:
Mount the Fuel Flow Transducer using the appropriate drawing at the back of this manual.
The instructions listed below must be followed when installing a Fuel Flow Transducer.
Note: If your engine is equipped with a Pressure Carburetor with a fuel return line from the carburetor back to the
fuel tank, you will need to install two flow transducers: one in the feed line from the fuel pump to the carburetor
and one in the return line from the carburetor back to the fuel tank. Also, a Fuel Flow Differential Module
(FFDM-1) will need to be installed. See drawings 1229932 and 1015941 at the back of this manual.
A. The transducer output port should be mounted lower, even or no more than 4" per foot higher than the
carburetor inlet port (or fuel servo on a fuel injected engine). If this is not possible, a loop should be put
in the fuel line between the Fuel Flow Transducer and the carburetor or fuel servo (see diagram below).
Fuel Flow Transducer
Wires
UP
1/4" NPT
• Mount the transducer with
the wires pointing up.
Note: • The direction of the flow of
fuel through the transducer
is marked on the trans-
ducer.
End View Side View
If the transducer is more than 4" per foot higher
than the carburetor or fuel servo port, put a loop
in the fuel line between the transducer and the
carburetor or fuel servo. This will allow
bubbles to vacate the Flow Transducer.
B. Do not remove the caps on the flow transducer until the fuel hoses are ready to be installed.
C. The flow of fuel through the transducer must follow the direction marked on the transducer.
Fuel Flow Transducer
Carburetor or
Fuel Servo
Aircraft Configuration Drawing # Page
Fuel injected engine without a fuel return line
from the fuel servo (most Lycomings). 1229932 or
1229931
18 or 17
Fuel injected engine with a fuel return line from
the fuel servo (most Continentals).
0415941 20
Carbureted engine with a fuel pump and no fuel
return line.
1229932 or
1229931
18 or 17
Carbureted engine with a fuel pump and a fuel
return line (requires an FFDM-1 Module).
1229932 or
1229931, and
1015941
18 or 17, and 19
Carbureted engine with a gravity feed fuel
system (requires an FT-90 Flow Transducer). 1229932 or
1229931
18 or 17
Rev. I: 7/2/02
OUT