Garmin GPSMAP 521/521s Owner's Manual - Page 59

Setting the Total Fuel Onboard Alarm, Configuring My Boat

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Setting Sonar Alarms To set a sonar alarm from the Home screen, select Configure > Alarms > Sonar. Note: To configure sonar alarms, you must be receiving NMEA sonar depth data. Shallow Water-set an alarm to sound when the depth is less than the specified value. Deep Water-set an alarm to sound when the depth is greater than the specified 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 specified temperature. Fish-set an alarm to sound when the unit detects a suspended target of the specified symbols. -sounds an alarm for all fish sizes. -sounds an alarm for medium and large fish only. -sounds an alarm for large fish only. Setting the Total Fuel Onboard Alarm You can configure your chartplotter to sound an alarm when the total amount of remaining onboard fuel reaches the specified level. GPSMAP 400/500 Series Owner's Manual Configuring the Chartplotter 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 Configure > 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. Configuring My Boat To configure settings for your boat, from the Home screen, select Configure > 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 Configure > My Boat > Keel Offset. 53

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GPSMAP 400/500 Series Owner’s Manual
5²
Configuring the Chartplotter
Setting Sonar Alarms
To set a sonar alarm from the Home screen, select
Configure
>
Alarms
>
Sonar
.
NOTE
: To configure sonar alarms, you must be receiving NMEA
sonar depth data.
Shallow Water
—set an alarm to sound when the depth is less than
the specified value.
Deep Water
—set an alarm to sound when the depth is greater than
the specified 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 specified
temperature.
Fish
—set an alarm to sound when the unit detects a suspended
target of the specified symbols.
—sounds an alarm for all fish sizes.
—sounds an alarm for medium and large fish only.
—sounds an alarm for large fish only.
Setting the Total Fuel Onboard Alarm
You can configure your chartplotter to sound an alarm when the total
amount of remaining onboard fuel reaches the specified 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
Configure
>
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.
Configuring
My Boat
To configure settings for your boat, from the Home screen, select
Configure
>
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
Configure
>
My Boat
>
Keel
Offset
.