GFL™ 10 Installation and Configuration Instructions
Use the Garmin® GFL 10 adapter to adapt analog information provided by a fluid-level sensor
on your boat to your NMEA 2000® network. The GFL 10 adapter allows you to observe
fluid-level information on compatible Garmin display devices connected to your NMEA 2000
Compare the contents of this package with the packing list on the box. If any pieces are
missing, contact your Garmin dealer immediately.
Product Registration
Help us better support you by completing our online registration today. Go to http://my.garmin
Contact Garmin
Contact Garmin Product Support if you have any questions while using your GFL 10 adapter. In
or (800) 800.1020.
In the UK, contact Garmin (Europe) Ltd. by phone at 0808 2380000.
information, or contact Garmin (Europe) Ltd. by phone at +44 (0) 870.8501241.
See the Important Safety and Product Information guide in the compatible Garmin display device box for
product warnings and other important information.
Caution: Always wear safety goggles, ear protection, and a dust mask when drilling, cutting, or
sanding.
notiCe: When drilling or cutting, always check the opposite side of the drilling or cutting
surface.
Needed Tools and Supplies
•
•
•
Heat-shrink tubing and a heat gun
Cable ties
Additional NMEA 2000 cabling and connectors (optional)
July 2009
190-01081-06 Rev. A
Printed in Taiwan
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Connection Type
Analog Gauge
Wire Color
Blue
Gauge or Sensor Terminal
Sensor (S, G)
Gauge power (+, +12V, I, IGN)
Unused
White
Yellow
Black
Red
Ground (-, , G)
Unused
Resistive Sensor
Blue
Sensor (S, G)
Unused
White
Yellow
Black
Red
Unused
Ground (-, , G)
Unused
Warning: When connecting the GFL 10 adapter directly to the sensor on a fuel tank, make the
connection to the sender on the tank before connecting the adapter to the NMEA 2000 network.
This will reduce the risk of sparks near the fuel tank.
notiCe: After connecting the adapter to the gauge or sensor, cover any exposed wires with heat-
shrink tubing.
Connecting the GFL 10 Adapter to a NMEA 2000 Network
After you have connected the GFL 10 adapter to the analog gauge or to the sender, connect it
to the existing NMEA 2000 network on your boat. If you do not have a NMEA 2000 network
on your boat, you must build one. For more information on NMEA 2000 and to purchase
To connect the GFL 10 adapter to your existing NMEA 2000 network:
1. Determine where to connect the GFL 10 adapter to your existing NMEA 2000 backbone.
2. Disconnect one side of a NMEA 2000 T-connector from the backbone. To extend the
NMEA 2000 backbone, connect a NMEA 2000 backbone extension cable to the side of the
disconnected T-connector.
3. Add the included T-connector for the GFL 10 adapter to the NMEA 2000 backbone by
connecting it to the side of the disconnected T-connector.
4. Connect the NMEA 2000 connector on the GFL 10 adapter to the T-connector added in
step 3.
5. (Optional) If the GFL 10 adapter cannot connect directly to the NMEA 2000 backbone, route
a NMEA 2000 drop cable (not included) to the bottom of the T-connector added in step 3.
Use a drop cable with a length up to 20 ft. (6 m). Connect the drop cable to the T-connector
and to the NMEA 2000 connector on the GFL 10 adapter.
notiCe: If you have an existing NMEA 2000 network on your boat, it should already be
connected to power. Do not connect an additional NMEA 2000 power cable to an existing NMEA
2000 network, because only one power source should be connected to a NMEA 2000 network.
GFL 10 Installation and Configuration Instructions
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ꢁ
➊
➋
➊GFL 10 adapter
➋NMEA ꢀ000 device (not included)
➌Drop cable (optional - not included)
➍T-connector (one included)
➎Existing NMEA ꢀ000 network
➋
➌
➍
➎
Connecting the GFL 10 Adapter to an
Existing NMEA 2000 Network
Configuring the GFL 10 Adapter
notiCe: This section provides specific configuration information for the GFL 10 adapter
using your compatible Garmin display device. To access the NMEA 2000 configuration menu
on your display device, consult the documentation provided with your display device.
Configuring the NMEA 2000 Fluid Type
You can indicate the type of fluid that is in the tank with which each GFL 10 adapter is
associated.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > N2K Fluid Type.
For other Garmin marine devices, select Config > N2K Fluid Type.
3. Select a fluid type.
4. Select OK.
Configuring the Tank Number
If your boat has multiple fluid tanks, you can indicate which tank each GFL 10 adapter is
associated with.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > Tank Number.
For other Garmin marine devices, select Config > Tank Number.
3. Select a tank number.
4. Select OK.
ꢂ
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Configuring the NMEA 2000 Tank Capacity
You can indicate the capacity of the fluid tank that the GFL 10 adapter is associated with.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > N2K Tank Capacity.
For other Garmin marine devices, select Config > N2K Tank Capacity.
3. Select the tank capacity.
4. Select Done.
Calibrating the Fluid Level
To use the GFL 10 adapter, you must calibrate the fluid level of the tank that the adapter is
associated with, using a minimum of two calibration points. The greater the number of fluid
calibration points, the greater the accuracy of the reading on the fluid-level gauge.
1. Turn the boat ignition key to the On position (not Start).
2. From the NMEA 2000 Devices list, select the GFL 10 device.
3. Select an option:
•
For most Garmin chartplotters, select Review > Level Calibration > Add Calibration
Point.
•
For other Garmin marine devices, select Config > Level Calibration > Add Calibration
Point.
4. Select the percentage of fluid currently in the tank, based on the total tank capacity.
5. Select Done.
6. Change the level of the fluid in the tank.
7. Select Add Calibration Point.
8. Select the percentage of fluid currently in the tank, based on the total tank capacity.
9. Select Done.
10.Repeat steps 6 through 9 to add additional, optional fluid-level calibration points.
Troubleshooting the Tank Number
If multiple GFL 10 adapters are assigned to the same NMEA 2000 fluid type, each adapter is
assigned a unique tank number automatically. If the “Invalid NMEA 2000 tank configuration”
error message appears, you must assign a unique tank number to each adapter.
For example, if two adapters are assigned the NMEA 2000 fluid type value of Live Well and the
error message appears, you must assign each adapter a unique tank number.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > Tank Number.
For other Garmin marine devices, select Config > Tank Number.
3. Select a tank number.
4. Select OK.
GFL 10 Installation and Configuration Instructions
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Troubleshooting the Gauge Type
When connected to a gauge, the GFL 10 adapter gauge type is set to auto Detect by default,
and the adapter automatically detects the type of gauge it is connected to. If the fluid-level
reading on a connected Garmin chartplotter or marine instrument changes with the engine
RPM, the adapter may be detecting the wrong type of gauge.
note: The fuel level changes when the boat is moving. Test the gauge-type setting when the
boat is not moving.
To test the gauge-type setting:
1. When the boat is not moving, put the engine in neutral.
2. Use the throttle to increase the engine RPM. If the fluid-level reading changes with the
engine RPM, change the gauge type.
To change the gauge type:
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > Gauge Type.
For other Garmin marine devices, select Config > Gauge Type.
3. Select an option:
•
•
•
To automatically detect the gauge type, select Auto Detect.
To indicate a one-coil gauge, select 1 Coil.
To indicate a two-coil gauge, select 2 Coil.
4. Perform the gauge-type setting test.
Resetting the Fluid Level Calibration
You can reset the fluid-level calibration of the tank that the GFL 10 adapter is associated with.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > Level Calibration.
For other Garmin marine devices, select Config > Level Calibration.
3. Select Reset Calibration.
4. Select Yes.
5. Calibrate the fluid level.
ꢄ
GFL 10 Installation and Configuration Instructions
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Configuring the GFL 10 Adapter if the Tank Number and
Fluid Type Selections Are Not Displayed
Depending on the version of software loaded on your Garmin marine instrument, the specific
configuration options may not be displayed on the configuration screens.
To configure the tank number if the menu option is not displayed:
If your boat has multiple fluid tanks, you can indicate which tank each GFL 10 adapter is
associated with.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > Generic Config.
For other Garmin marine devices, select Config >Generic Configuration.
2. Enter the following command: “INSTANCE=”
3. After the command, enter a whole number between 1 and 16, which indicates the tank
number, followed by Done.
For example, INSTANCE=2Done indicates that the adapter is associated with tank number
2.
To configure the fluid type if the menu option is not displayed:
You can indicate the type of fluid that is in the tank that each GFL 10 adapter is associated with.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > Generic Config.
For other Garmin marine devices, select Config >Generic Configuration.
3. Enter the following command: “FLUIDTYPE=”
4. After the command, enter a number between 0 and 5 to indicate the fluid type as defined in
the following table, followed by Done.
For example, FLUIDTYPE=1Done indicates that the tank contains fresh water.
Fluid Type
Fuel
FLUIDTYPE Value Fluid Type
FLUIDTYPE Value
0
1
2
Live well
Oil
3
4
5
Fresh water
Waste water
Black water
(sewage)
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Restoring Factory Default Settings
When you restore factory default settings, you will lose all custom configuration settings except
fluid-level calibration.
1. From the NMEA 2000 Devices list, select the GFL 10 device.
2. Select an option:
•
•
For most Garmin chartplotters, select Review > Factory Defaults.
For other Garmin marine devices, select Config > Factory Defaults.
3. Select Yes.
ꢆ
GFL 10 Installation and Configuration Instructions
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Specifications
Physical
Weight: 12.85 oz. (365 g)
Size: (W × H × L) 31/32 × 43/64 × 3 3/32 in. (24.7 × 17.0 × 78.6 mm)
total Cable Length: 16 ft. (4.9 m)
Case Material: Thermoplastic rubber (PCB overmold); PVC jacket (cable); PVC overmold
(connectors/strain reliefs). Waterproof to IEC 529 IPX7 standards.
temperature range: From 5°F to 158°F (from -15°C to 70°C)
Compass Safe Distance: 2 in. (5 cm)
Electrical
Power input Source: 9–16 Vdc from the NMEA 2000 bus
nMea 2000 Power usage: 1 W max
nMea 2000 Load equivalency number (Len): 2 (100 mA)
Communications
Use the following table to determine the approved NMEA 2000 PGN information that is
received and transmitted by a GFL 10 adapter when communicating with a NMEA 2000-
compliant device.
Transmit
Receive
059392
060928
126208
ISO Acknowledgment
ISO Address Claim
059392
059904
060928
ISO Acknowledgment
ISO Request
NMEA - Command/Request/
Acknowledge Group Function
ISO Address Claim
126464
Transmit/Receive PGN List Group
Function
126208
NMEA - Command/Request/
Acknowledge Group Function
126996
127505
Product Information
Fluid Level
The GFL 10 is NMEA 2000
certified
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products and to make changes in the content without obligation to notify any person or organization of such changes
or improvements. Visit the Garmin Web site (www.garmin.com) for current updates and supplemental information
concerning the use and operation of this and other Garmin products.
Garmin®, and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other
countries. GFL™ 10 is a trademark of Garmin Ltd. or its subsidiaries. These trademarks may not be used without the
express permission of Garmin.
NMEA 2000® and the NMEA 2000 logo are registered trademarks of the National Marine Electronics Association.
For the latest free software updates (excluding map data) throughout the life of your
© 2009 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151st Street, Olathe, Kansas 66062, USA
Garmin (Europe) Ltd.
Liberty House, Hounsdown Business Park, Southampton, Hampshire, SO40 9LR UK
Garmin Corporation
No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
July 2009
Part Number 190-01081-06 Rev.A
Printed in Taiwan
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