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GFL10InstallationandCongurationInstructions
Determining an Installation Location
When you are selecting a location to install the GFL 10 adapter, consider the following:
During installation, you connect the GFL 10 adapter to the analog gauge (or directly to the
uid-level sensor), and to the NMEA 2000 network. Therefore:
Choose a location that is within 173 in. (4.4 m) of the analog gauge (or the uid-level
sensor) to avoid splicing bare wires.
Choose a location between the NMEA 2000 backbone and the analog gauge (or the uid-
level sensor).
If you cannot connect the adapter directly to the NMEA 2000 network, add a drop cable.
See page 3 for more information.
The adapter is IEC 60529 IPX7 waterproof, and can be submerged up to 30 minutes at 1
meter. Do not install the adapter in a location where it will be submerged regularly, though
the location can be subject to wash-down.
You can use cable ties (not included) to secure the adapter to an existing structure on your
boat.
You can use mounted-head cable ties (not included) and screws (not included) to secure the
adapter to a bulkhead or other suitable surface on your boat.
Install the adapter at least 2 in. (5 cm) from a magnetic compass to prevent electromagnetic
interference, which can cause inaccurate compass readings.
Wiring the GFL 10 Adapter
Connect the GFL 10 adapter either to an analog gauge or to the sender directly using the bare
wires on the wiring harness.
Wiring the GFL 10 Adapter to an Analog Gauge
If your boat has an analog gauge representing the uid level, you can wire the GFL 10 adapter
directly to the gauge. Consult the owner’s manual provided by your boat or sensor manufacturer
to determine the ground, sensor, and power (ignition) connections on the gauge. Typically,
the power (ignition) connector is labeled with a “+”, a “+12V”, an “I”, or an “IGN” marking.
The ground connector is typically labeled with a “-”, a “ ”, or a “G” marking, and the sensor
connector is typically labeled with an “S” or a “G” marking. Do not remove any wires from the
back of the gauge, and wire the GFL 10 adapter to the gauge according to the following table.
Wiring the GFL 10 Adapter Directly to a Fluid-Level Sensor
If your boat does not have an analog gauge representing the uid level, you can wire the adapter
directly to the uid-level sensor. Consult the owner’s manual provided by your boat or sensor
manufacturer to determine the sending and ground terminals on the sensor. Typically, the
sending terminal is labeled with an “S” marking for sensor or a “G” marking for gauge, and the
ground terminal is typically labeled with a negative sign (-). Wire the GFL 10 adapter to the
sensor according to the following table.
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