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TRACKER 5505/5505i/5605 Installation and Operation Manual
37
NAVMAN
Calibrate petrol/gasoline fuel flow sensors
during installation, or if the fuel readings seem
inaccurate and the other troubleshooting
suggestions do not help (see appendix B
troubleshooting).
Note
SmartCraft fuel sensors and Navman diesel
sensors are factory calibrated and should
never need recalibrating.
On a multi engine boat, calibrate each
engine’s sensor. This can be done at the
same time with a portable tank for each
engine or at different times using one
portable tank.
Calibrating a sensor requires accurate
measurement of the fuel consumption.
This is best done using a small portable
tank. At least 4 gallons (15 litres) of fuel
should be used to ensure an accurate
calibration.
It is often very difficult to fill underfloor
tanks to the same level twice due to air
pockets, so the more fuel used, the more
accurate the calibration.
10-7 Calibration
To calibrate the sensor(s):
1 Record the level of the fuel in the tank(s).
2 Connect the portable tank(s) to the engine
through the fuel sensor(s).
3 Run the engine at normal cruising speed
until at least 4 gallons (15 litres) of fuel has
been used per engine.
4 Check the actual amount of fuel used per
engine by refilling the portable tank(s) to
the original level and noting the reading(s)
of the fuel dispenser’s gauge.
5 Press one or more times to display
the Setup menu, select Fuel then select
Setup engines.
6 On a single engine boat, select
Calibrate and change the displayed
value to be equal to the reading of the fuel
dispenser’s gauge, then press .
On a multi-engine boat select the engine.
Select Calibrate and change the
displayed value to be equal to the reading
of the fuel dispenser’s gauge, then press
. Repeat for the other engines.
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