Garmin G3X Installation Manual page 749

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.
The Digital (frequency) Fuel Inputs are calibrated in the same manner as the resistive fuel inputs, except
that the resulting frequency (in kHz) from the sensor is displayed instead of the voltage. Frequencies up to
50 kHz are supported.
To delete a calibration value, highlight the desired data point in the list and press the Delete Button. Then
press Yes on the pop-up window, the calibration data is removed.
Fuel Quantity Calibration Data Backup – This option allows the user to back up fuel calibration data to
an SD card placed in the SD card slot of the PFD. Access the Read/Write Calibration File menu by
pressing the Menu key when displaying the Fuel Quantity Calibration Page
Write Calibration File – Stores fuel quantity calibration data to a file on the SD card. Calibration data is
saved to the /Garmin/cal/ directory on the card. This data storage must be repeated for each calibrated tank
(if backup is desired).
Read Calibration File – Reads the stored fuel quantity calibration data from the SD card.
190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout
Rev. AA Page 32-154