Garmin G3X Installation Manual page 136

8.3.3 Input Configuration Items Requiring Calibration
Fuel Input Calibration – The Fuel 1–4 and Cap Fuel 1–2 inputs require calibration.
To perform the Fuel Quantity calibration:
1. Press the Calibrate softkey to display the Calibration Page.
2. Drain all usable fuel from the tank and calibrate at 0.0 gallons.
3. Put a known quantity of fuel (e.g. 5.0 gallons) into the empty fuel tank and enter that same
amount into the Actual Fuel Quantity field.
4. Note the resulting sensor value displayed in the Sensor Value field (the sensor value should
change with each added amount of fuel), wait at least 2 minutes for the reading to stabilize.
5. Highlight and press the Calibrate button.
6. Repeat this process until the fuel tank is full.
The user determines the best interval values of fuel to most accurately calibrate the full range of the tank.
The greater number of calibration points that are used (maximum of 50 points), the more accurate the
calibration will be. A yellow line on the graph indicates potentially incorrect/invalid info.
Page 8-32
Revision E
G3X Installation Manual – Engine Sensor Installation and Configuration
190-01115-01