Nmea 2000 Settings; Naming Devices And Sensors On The Network; Garmin Marine Network; Setting Alarms - Garmin GPSMAP 8400 series Owner's Manual

1
Select Settings > Communications > NMEA 0183 Setup >
Port Types.
2 Select an input or output port.
3
Select a format:
• To support the input or output of standard NMEA 0183
data, DSC, and sonar NMEA input support for the DPT,
MTW, and VHW sentences, select NMEA Std..
• To support the input or output of standard NMEA 0183
data for most AIS receivers, select NMEA High Speed.
• To support the input or output of Garmin proprietary data
for interfacing with Garmin software, select Garmin.
4
Repeat steps 2–3 to configure additional input or output
ports.

NMEA 2000 Settings

Select Settings > Communications > NMEA 2000 Setup.
Device List: Displays the devices connected to the network.
Label Devices: Changes the labels for available connected
devices.

Naming Devices and Sensors on the Network

You can name devices and sensors connected to the Garmin
Marine Network and the NMEA 2000 network.
1
Select Settings > Communications.
2 Select Marine Network or NMEA 2000 Setup > Device List.
3
Select a device from the list on the left.
4 Select Change Name.
5
Enter the name, and select Done.

Garmin Marine Network

The Garmin Marine Network allows you to share data from
Garmin peripheral devices with the chartplotters quickly and
easily. You can connect a chartplotter to a Garmin Marine
Network to receive data from and share data with other Garmin
Marine Network-compatible devices and chartplotters.

Setting Alarms

Navigation Alarms

Select Settings > Alarms > Navigation.
Arrival: Sets an alarm to sound when you are within a specified
distance or time from a turn or a destination.
Anchor Drag: Sets an alarm to sound when you exceed a
specified drift distance while anchored.
Off Course: Sets an alarm to sound when you are off course by
a specified distance.

Setting the Anchor Drag Alarm

You can set an alarm to sound if you have moved more than an
allowable distance. This is very useful when anchoring
overnight.
1
Select Settings > Alarms > Navigation > Anchor Drag.
2
Select Alarm to turn on the alarm.
3
Select Set Radius, and select a distance on the chart.
4
Select Back.

System Alarms

Alarm Clock: Sets an alarm clock.
Unit Voltage: Sets an alarm to sound when the battery reaches
a specified low voltage.
GPS Accuracy: Sets an alarm to sound when the GPS location
accuracy falls outside the user-defined value.

Sonar Alarm Settings

NOTE: Some settings require external accessories.
Select Settings > Alarms > Sonar.
Device Configuration
Shallow Water: Sets an alarm to sound when the depth is less
than the specified value.
Deep Water: Sets an alarm to sound when the depth is greater
than the specified value.
Water Temp.: Sets an alarm to sound when the transducer
reports a temperature that is 2°F (1.1°C) above or below the
specified temperature.
Contour: Sets an alarm to sound when the transducer detects a
suspended target within the specified depth from the surface
of the water and from the bottom.
Fish: Sets an alarm to sound when the device detects a
suspended target.
• sets the alarm to sound when fish of all sizes are
detected.
• sets the alarm to sound only when medium or large
fish are detected.
• sets the alarm to sound only when large fish are
detected.

Setting Weather Alarms

Before you can set weather alarms, you must have a compatible
chartplotter connected to a weather device, such as a GXM
device, and have a valid weather subscription.
1
Select Settings > Alarms > Weather.
2
Turn on alarms for specific weather events.

Setting the Fuel Alarm

Before you can set a fuel level alarm, a compatible fuel flow
sensor must be connected to the chartplotter.
You can set an alarm to sound when the total amount of
remaining onboard fuel reaches the level you specify.
1
Select Settings > Alarms > Fuel > Set Total Fuel Onboard
> On.
2
Enter the remaining amount of fuel that triggers the alarm,
and select Done.

My Vessel Settings

NOTE: Some settings and options require additional charts or
hardware.
Select Settings > My Vessel.
Depth and Anchoring: Allows you to set an offset value for the
keel (Setting the Keel Offset, page
about your anchor.
Temp. Offset: Allows you to set an offset value to compensate
for the water temperature reading from a NMEA 0183 water-
temperature sensor or a temperature-capable transducer
(Setting the Water Temperature Offset, page
Calibrate Water Speed: Calibrates the speed-sensing
transducer or sensor (Calibrating a Water Speed Device,
page 44).
Fuel Capacity: Sets the combined fuel capacity of all the fuel
tanks on your vessel (Setting the Fuel Capacity of the Vessel,
page 31).
Vessel Type: Enables some chartplotter features based on the
boat type.
CZone™: Sets the digital switching circuits.
System Profiles: Allows you to save your system profile to a
memory card and import system profile settings from a
memory card. This can be helpful for charter or fleet vessels,
and for sharing your setup information with a friend.

Setting the Keel Offset

You can enter a keel offset to compensate the surface reading
for the depth of a keel, making it possible to measure depth from
the bottom of the keel instead of from the transducer location.
Enter a positive number to offset for a keel. You can enter a
16) and enter information
44).
43