Garmin GFS 10 Installation Instructions Manual

Also see for GFS 10 - Fuel Sensor: Technical reference Important safety information Quick reference guide Configuration guide Declaration of conformity

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Garmin GFS 10 Installation Instructions Manual Manual pdf 5 page image

GFS 10 Fuel Sensor Installation Instructions 3Step 3: Connecting the GFS 10 to the Power Source and the Fuel GaugeThe GFS 10 must be connected to the power source of the boat. Optionally, the GFS 10 can be connected to the fuel gauge on your boat toread fuel-level data. The bare-wire cable contains the power and ground wires, as well as the wires you connect to your fuel gauge. Follow thewiring diagram to complete the connections.+ -Red/WhiteBlack/WhiteGreyBrownOrangeFuseUnconnected(when using NMEA 2000)12 VdcBatteryGroundIgnitionFuel TankLevel SensorTo NMEA 2000 Networkor CANet BusWireColor.25 AFuel gauge connection optionalIMPORTANT:• If you use a fuse block on your boat, cut the fuse holder from the power wire. Use a .25 A fuse in the fuse block.• Install the fuse holder as close to the battery as possible. If an extended run of wire is needed, add 24 AWG wire between the fuse holderand the GFS 10, not between the fuse holder and the battery.• DO NOT install the fuse holder near the gas tank.• If you do not connect the GFS 10 to a fuel gauge or level-sensor on a fuel tank, connect the brown wire to ground, and leave the greywire unconnected.Notes:• Consult the owner’s manual provided by your boat manufacturer to determine the ground, ignition, and level-sensor connections on yourfuel gauge. Often, the ignition connector is labeled “I” or “+”, and the level-sensor connector is labeled “S.”• If you do not have a fuel gauge, but you do have a fuel tank with a level sensor, connect the brown wire to the “+” terminal of the levelsensor at the tank. DO NOT install the fuse holder near the tank—extend the brown wire to the tank with 24 AWG wire. Completethis connection before completing any other wiring connections to reduce the risk of a spark near the fuel tank. Leave the grey wireunconnected.• If you are using NMEA 2000, be sure to leave the orange wire unconnected.Multiple GFS 10 DevicesIf your boat has more than one engine or fuel tank, you will need multiple GFS 10 devices. Each GFS 10 can function as one flow sensor andone level sensor. You need one GFS 10 flow sensor for each engine, and one GFS 10 level sensor for each fuel gauge or for each fuel tank thathas a level sensor. Depending on your boat, you may use only the flow-sensing capabilities of additional GFS 10 devices.Flow Sensing Multiple engines One GFS 10 per engine–up to four enginesMultiple fuel tanks for one engine One GFS 10 per engine–install after the tank switchLevel Sensing Multiple tanks with one fuel gauge and a manual switch One GFS 10 wired to the fuel gaugeMultiple fuel tanks with multiple gauges One GFS 10 per tank–wired to each gauge–up to two tanksMultiple fuel tanks with no fuel gauge One GFS 10 per tank–wired to the level sensor (if available)–up to two tanksnotE: When using multiple GFS 10 units on multiple engines, it is normal to read different fuel flow rates on each GFS 10 unit. Similar engines donot always consume fuel at the same rate.