Setting The Keel Offset; Setting The Water Temperature Offset; Calibrating A Water Speed Device; Other Vessels Settings - Garmin GPSMAP 8012 Owner's Manual

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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
negative number to compensate for a large vessel that may
draw several feet of water.
1
Complete an action, based on the location of the transducer:
• If the transducer is installed at the water line
the distance from the transducer location to the keel of the
boat. Enter this value in steps 3 and 4 as a positive
number.
• If the transducer is installed at the bottom of the keel
measure the distance from the transducer to the water
line. Enter this value in steps 3 and 4 as a negative
number.
2
Select Settings > My Vessel > Depth and Anchoring >
Keel Offset.
3
Select
or
based on the location of the transducer.
4
Enter the distance 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.
Device Configuration

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.
, measure
6
If you continue to get the message, contact Garmin product
support.

Other Vessels Settings

,
When your compatible chartplotter is connected to an AIS
device or VHF radio, you can set up how other vessels are
displayed on the chartplotter.
Select Settings > Other Vessels.
AIS: Enables and disables AIS signal reception.
DSC: Enables and disables digital selective calling (DSC).
Collision Alarm: Sets the collision alarm
Collision Alarm, page
AIS-EPIRB Test: Enables test signals from Emergency Position
Indicating Radio Beacons (EPRIB).
AIS-MOB Test: Enables test signals from man overboard (MOB)
devices.
AIS-SART Test: Enables test transmissions from Search and
Rescue Transponders (SART).
Settings that are Synced on the Garmin
Marine Network
The following devices sync certain settings when connected to
the Garmin Marine Network.
• echoMAP
• GPSMAP 507 series (software version 3.0 or later)
• GPSMAP 701 series (software version 3.0 or later)
• GPSMAP 702 series
• GPSMAP 800 series
• GPSMAP 902 series
• GPSMAP 1000 series
• GPSMAP 1002 series
• GPSMAP 1202 series
• GPSMAP 7400/7600 series
• GPSMAP 8400/8600 series
The following settings are synced, if applicable, to the device.
Alarm Settings (also syncs alarm acknowledgment):
• Arrival
• Anchor Drag
• Off Course
• GPS Accuracy
• Shallow Water
• Deep Water (Not available in the GPSMAP 8400/8600
series)
• Water Temp.
• Contour (Not available in echoMAP 70s and GPSMAP
507/701 series)
• Fish
7).
70 series
(Setting the Safe-Zone
45

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This manual is also suitable for:

Gpsmap 8000 seriesGpsmap 8008

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