Lowrance ELITE TI Installation Manual page 39

Fuel flow configuration
Fuel flow configuration is available on the ELITE-7Ti only.
After the number of engines is set, it is required to set which fuel
flow sensor is connected to which engine. Under Device list on the
Network page, view the Device Configuration dialog for each
sensor, and set the Location to match the engine the device is
connected to.
Unconfigure - defaults the device which clears all user settings.
Reset Fuel Flow - restores only the Fuel K-Value setting, if set in
Calibrate. Only Navico devices can be reset.
Calibrate
Calibrating fuel flow is available on the ELITE-7Ti only.
Calibration may be required to accurately match measured flow
with actual fuel flow. Access calibration from the Refuel dialog.
Calibration is only possible on Navico's Fuel Flow sensor.
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Software Setup | ELITE Ti Installation Manual