Electronics International CGR-30P - Manual (Page 27)

Note: Note: Note: Note: 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 on
the following pages.
Note: Note: Note: Note: Note: Insure the fuel flow transducer is appropriate for the horsepower of the engine Insure the fuel flow transducer is appropriate for the horsepower of the engine Insure the fuel flow transducer is appropriate for the horsepower of the engine Insure the fuel flow transducer is appropriate for the horsepower of the engine Insure the fuel flow transducer is appropriate for the horsepower of the engine.
A. A. A. A. A. The transducer output port should be mounted lower, even with 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). This loop is intended to vacate air and keep it from getting trapped in the fuel
transducer.
B. B. B. B. B. Do not remove the yellow caps on the flow transducer until the fuel hoses are ready to be installed.
C. C. C. C. C. The flow of fuel through the transducer must follow the direction marked on the transducer.
D. D. D. D. D. The flow transducer must be mounted so the wires exiting the transducer are pointing up, or the cap
with five bolts is pointing up, or the output port is pointing up, or any combination thereof.
E. E. E. E. E. Before connecting any hoses, thoroughly clean them and insure they are free of any loose material.
High air pressure may be used, however, however, however, however, however, do not allow high air pressure to pass through the do not allow high air pressure to pass through the do not allow high air pressure to pass through the do not allow high air pressure to pass through the do not allow high air pressure to pass through the
flow transducer. flow transducer. flow transducer. flow transducer. flow transducer.
F. F. F. F. F. When mounting a Fuel Flow Transducer, make provisions for the Fuel Pressure Transducer as neces-
sary.
1 8
Fuel Flow
Transducer
1/4" NPT
Note: • The direction of the flow of
fuel through the transducer
is marked on the trans-
ducer.
• Mount the transducer with
the wires pointing up, or
the cap with five bolts
pointing up or the output
pointing up or any combi-
nation thereof.
End View End View End View End View End View Side View Side View Side View Side 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.
Fuel Flow Trans-
ducer
Carburetor or
Fuel Servo
OUT