Garmin GPSMAP 541 Technical Reference for Garmin NMEA 2000 Products - Page 23
GFS 10 Garmin Fuel Sensor - gps receiver
UPC - 753759096038
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NMEA 2000-Certified Sensor Configuration Information GFS 10 (Garmin Fuel Sensor) Caution: The GFS 10 is a sensor that helps you better determine the amount of fuel used on your boat; you should not rely solely on the GFS 10 for fuel-level information. Carefully compare information displayed on the unit to all available fuel-level instruments and sources. Using Fuel-Flow Information With a Garmin Chartplotter or Marine Instrument Caution: The Garmin chartplotter or marine instrument must be powered on to calculate remaining fuel based on the fuel-flow rate. Important: When using the GFS 10 to calculate remaining fuel based on the fuel-flow rate, you must specify the amount of fuel each time you add fuel to the tank. To specify the amount of fuel added: 1. While viewing the fuel page or fuel instrument screen on your NMEA 2000 device, select Menu. 2. Choose from the following options: • Fill Up Tank-set fuel level to the maximum capacity. • Add Fuel to Boat-specify the amount of fuel added. • Set Total Fuel Onboard-specify the amount of fuel currently available in the fuel tank or tanks. Changing the Fuel Economy Source The Garmin chartplotter or marine instrument requires a speed sensor in addition to the GFS 10 to calculate fuel economy. To change the fuel economy source: 1. While viewing the fuel page or fuel instrument screen on your NMEA 2000 device, select Menu > Fuel Economy Source. 2. Select either GPS Speed or Water Speed to specify which speed sensor is used to calculate fuel economy. Using Fuel-Level Information With a Garmin Chartplotter or Marine Instrument To receive fuel-level information, connect the wiring harness on the GFS 10 to the fuel gauge or fuel-level sensor of your boat according to the GFS 10 Installation Instructions. To calibrate fuel-level information from the GFS 10: 1. While in still water, on the NMEA 2000 device configuration menu, select the GFS 10 device that is connected to the fuel tank you want to configure. Tip: The serial number of each GFS 10 is shown on the NMEA 2000 device configuration screen to help differentiate among multiple GFS 10 devices. 2. Select Config > Level Calibration > Add Calibration Point and enter a calibration point that corresponds to the current fuel level in that fuel tank. Entering more calibration points will provide a more-accurate reading. For example, entering five calibration points (empty tank, 1/4 tank, 1/2 tank, 3/4 tank, and full tank) will provide a more-accurate reading than entering two calibration points (empty tank and full tank). Tip: For a quick calibration, start with an empty tank, and enter calibration points as you fill up the tank. To reset the fuel-level calibration: 1. While viewing the NMEA 2000 device configuration menu, select the GFS 10 device that is connected to the fuel tank you want to configure. 2. Select Config > Level Calibration > Reset Calibration. Technical Reference for Garmin NMEA 2000 Products 19