Flybox Eclipse - Fuel Flow Transducer Calibration

7.2 Fuel flow transducer calibration
To increase accuracy in the fuel flow measurement you must calibrate the transducer following this steps; it's recommended to
execute the calibration right after installing the ECLIPSE and to repeat it once a year.
1- With the aircraft in level attitude, fill the tank/s of fuel; note that in the step #4 it's required to refill the tank/s at the
exact level reached here.
2- Turn-on the ECLIPSE and select “ FILLED ” when asked for the fuel quantity.
3- Burn at least 3/4 of fuel in the tank/s: a greater amount of burned fuel will increase the accuracy, and you can do
this step in more flights: at the start of each flights you must not add fuel in the tank/s and you must select “ NO
REFUEL ” when asked after turning on the ECLIPSE.
4- Fill the tank/s with the exact same level reached in the step #1, accurately measuring the quantity of fuel added in the tank/s.
5- Turn on the ECLIPSE, select “NO REFUEL” (even if you have refilled is required to select “ NO REFUEL ”).
6- Select the “K factor auto calibration” (menu System setup-->Fuel computer) and press the knob for 3 seconds
until it's displayed the following screen:
Rotate the knob to insert in “ FUEL
FILLED ” the exact quantity of fuel
that you have added and measured
in step #4;
probably it doesn't correspond to the
“ FUEL COMPUTER USED QUANTITY ”
because this is the measurement from
the transducer not yet calibrated and is
showed for reference only.
7- When you confirm pressing “ DONE ” the ECLIPSE store in memory the newly calculated K-factor.
It's recommended to annotate the K-factor value so that if you inadvertently modify it it's possible to manually reenter the
value without doing again the calibration.
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