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GPSMAP 400/500 Series Owner’s Manual 53
Conguring the Chartplotter
Setting Sonar Alarms
To set a sonar alarm from the Home screen, select Congure >
Alarms > Sonar.
NOTE: To congure sonar alarms, you must be receiving NMEA
sonar depth data.
Shallow Water
—set an alarm to sound when the depth is less than
the specied value.
Deep Water
—set an alarm to sound when the depth is greater than
the specied value.
Water Temp
—set an alarm to sound when the transducer reports
a temperature that is 2°F (1.1°C) above or below the specied
temperature.
Fish
—set an alarm to sound when the unit detects a suspended
target of the specied symbols.
—sounds an alarm for all sh sizes.
—sounds an alarm for medium and large sh only.
—sounds an alarm for large sh only.
Setting the Total Fuel Onboard Alarm
You can congure your chartplotter to sound an alarm when the total
amount of remaining onboard fuel reaches the specied level.
NOTE
: To receive fuel-level information, your unit must be
connected to an external fuel sensor, such as the Garmin GFS 10.
To enable the Total Fuel Onboard alarm and set the fuel
alarm level:
1. From the Home screen, select Congure > Alarms > Fuel >
Total Onboard > On (or Off).
2. If you select On, use the Rocker to indicate the fuel level at
which the alarm should sound.
Conguring My Boat
To congure settings for your boat, from the Home screen, select
Congure > My Boat.
Keel Offset—offset 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. Enter a negative number to compensate for a large
vessel that may draw several feet of water.
To adjust the Keel Offset:
1. From the Home screen, select Congure > My Boat > Keel
Offset.