2
Select Settings > My Vessel > Keel Offset.
3
Select if the transducer is installed at the water line, or
select if the transducer is installed at the bottom of the
keel.
4
Use the arrow keys to enter the keel offset measured in step
1.
Setting the Water Temperature Offset
Before you can set the water temperature offset, you must have
a NMEA 0183 water-temperature sensor or a temperature-
capable transducer to measure water temperature.
The temperature offset compensates for the temperature
reading from a temperature sensor.
1
Measure the water temperature using the temperature sensor
or temperature-capable transducer that is connected to the
chartplotter.
2
Measure the water temperature using a different temperature
sensor or a thermometer that is known to be accurate.
3
Subtract the water temperature measured in step 1 from the
water temperature measured in step 2.
This is the temperature offset. Enter this value in step 5 as a
positive number if the sensor connected to the chartplotter
measures the water temperature as being colder than it
actually is. Enter this value in step 5 as a negative number if
the sensor connected to the chartplotter measures the water
temperature as being warmer than it actually is.
4
Select Settings > My Vessel > Temp. Offset.
5
Enter the temperature offset calculated in step 3.
Calibrating a Water Speed Device
If you have a speed-sensing transducer connected to the
chartplotter, you can calibrate that speed-sensing device to
improve the accuracy of water-speed data displayed by the
chartplotter.
1
Select Settings > My Vessel > Calibrate Water Speed.
2
Follow the on-screen instructions.
If the boat is not moving fast enough or the speed sensor is
not registering a speed, a message appears.
3
Select OK, and safely increase the boat speed.
4
If the message appears again, stop the boat, and ensure the
speed-sensor wheel is not stuck.
5
If the wheel turns freely, check the cable connections.
6
If you continue to get the message, contact Garmin product
support.
Setting the Fuel Capacity of the Vessel
1
Select Settings > My Vessel > Fuel Capacity.
2
Enter the combined total capacity of the fuel tanks.
Synchronizing the Fuel Data with the Actual Vessel
Fuel
You can synchronize the fuel levels in the chartplotter with the
actual fuel in the vessel when you add fuel to your vessel.
1
Select Gauges
> Engine > MENU
.
2
Select an option:
• After you have filled up all the fuel tanks on the vessel,
select Fill Up All Tanks. The fuel level is reset to
maximum capacity.
• After you have added less than a full tank of fuel, select
Add Fuel to Boat, and enter the amount added.
• To specify the total fuel in the vessel tanks, select
Set
Total Fuel Onboard, and enter the total amount of fuel in
the tanks.
Customizing Engine Gauge and Fuel Gauge Limits
You can configure the upper and lower limits and the range of
desired standard operation of a gauge.
NOTE:
Not all options are available for all gauges.
1
From an applicable gauges screen, select MENU
> Gauge
Setup > Set Gauge Limits
.
2
Select a gauge to customize.
3
Select Gauge Limits >
Custom
.
4
Select an option:
• To set the minimum value of the standard operating
range, select
Rated Min..
• To set the maximum value of the standard operating
range, select
Rated Max..
• To set the lower limit of the gauge lower than the rated
minimum, select Scale Min..
• To set the upper limit of the gauge higher than the rated
maximum, select
Scale Max..
5
Select the limit value.
6
Repeat steps 4 and 5 to set additional gauge limits.
Communications Settings
NOTE:
Some settings and options require additional charts or
hardware.
Select
Settings > Communications.
Serial Port: Sets the input/output format for the serial port to
use when connecting the chartplotter to external NMEA
devices, computers, or other Garmin
devices.
NMEA 0183 Setup: Sets the
NMEA 0183 sentences the
chartplotter transmits, how many digits to the right of the
decimal point are transmitted in a NMEA output, and how
waypoints are identified (
NMEA 0183 Settings, page 36).
NMEA 2000 Setup: Allows you to view and label the devices on
the
NMEA 2000 network (
NMEA 2000 Settings, page 36).
Marine Network: Allows you to view the devices with which you
are sharing maps, sonar, or radar. Not available on all
chartplotter models.
NOTE:
You can only view networked data on a model that
supports that data. For example, you cannot view networked
radar on model that does not support radar.
Wi-Fi Network: Allows you set up the Wi‑Fi
network (
Setting Up
the
Wi
‑
Fi Wireless Network, page
36).
NMEA 0183
The chartplotters support the
NMEA 0183 standard, which is
used to connect various NMEA 0183 devices, such as VHF
radios, NMEA instruments, autopilots, wind sensors, and
heading sensors.
Device Configuration 35
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