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3 Subtract the water temperature measured
in step 1 from the water temperature
measured in step2.
This is the temperature offset. Enter this
value in step 5 as a positive number if
the sensor connected to the chartplot-
ter 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
step3.
Calibrating a Water Speed Device
If you have a speed-sensing transducer con-
nected 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, con-
tact Garmin product support.
Setting the Fuel Capacity of the Vessel
1 Select Settings > My Vessel > Fuel Ca-
pacity.
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 Navigation Info > Engine >
MENU.
2 Select an option:
40
• After you have filled up all the fuel
tanks on the vessel, select Fill Up All
Tanks. The fuel level is reset to maxi-
mum 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 On board,
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. When a value exceeds the range
of standard operation, the gauge becomes
red.
NOTE: Not all options are available for all
gauges.
1 Select a gauge.
2 Select Gauge Limits > Custom > Edit
Limits.
3 Select an option:
• To set the minimum value of the stan-
dard 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.
4 Select the limit value.
5 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
Introduction
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