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The
BRÄUNIGER
fuel flow sender is looped in the fuel line between filter and engine.
Make sure all connections of fuel line are leak proof and secure. Secure all line
connections with suitable parts, e.g. hose clamps.
The fuel flow sender is designed in such a way, that even when the sensor wheel is
blocked, there is always enough fuel throughput to keep the engine running. Of course
the fuel flow can not be measured with a blocked sensor wheel.
2.4.2 Important Safety Notes
WARNING
! To prevent air bubbles from getting stuck inside the fuel flow
sender, the sender
MUST
be mounted in an angle of
optimal 90°
and
minimum 60° relative to the longitudinal axis of the aircraft. Only this way a
precise measurement can be achieved. The direction of the fuel flow
MUST
be
from bottom to top
! Take care of the correct flow direction indicated by the
arrow on the sender.
WARNING!
The fuel flow sender
MUST
be mounted
AFTER
the fuel filter so
that foreign matter in the fuel cannot block the sensor wheel!
WARNING!
When mounting the fuel flow sender you
MUST
observe the safety
and operation notes of the engine manufacturer!
2.4.3 Recommendations to Achieve Precision Measurements
Because most fuel pumps create strong vibrations in the fuel line and these vibration
can negatively influence the precision of the fuel flow sender, the sender should be
mounted far away from the fuel pump.
The fuel flow sender should be mounted close to the tank. The high temperatures in
the engine compartment can change the viscosity of the fuel which can negatively
influence measurement precision!
