12-7 Calibration
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 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.
To calibrate the sensor(s):
1Record the level of the fuel in the tank(s).
2Connect the portable tank(s) to the engine through the fuel sensor(s).
3Run the engine at normal cruising speed until at least 4 gallons (15 litres) of fuel has been used per engine.
4Check 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.
5Press 
twice, select Fuel then select
Setup engines.
6On 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
the fuel dispenser’s gauge, then press 
. Repeat for the other engines.
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