Beeper: Turns on and off the tone that sounds for alarms andselections (Setting the Beeper, page 2).GPS: Provides information about the GPS satellite settings andfix.Auto Power: Turns on the device automatically when power isapplied.Keyboard Layout: Sets the arrangement of the keyboard to analphabetical or computer keyboard layout.Language: Sets the on-screen language.System Information: Provides information about the device andthe software version.Simulator: Turns on the simulator and allows you to set thespeed and simulated location.System InformationSelect Settings > Settings > System Information.Event Log: Allows you to view a log of system events.Software Information: Provides information about the deviceand the software version.Garmin Devices: Provides information about connected Garmindevices.Factory Settings: Restores the device to factory settings.NOTE: This deletes any setting information you haveentered.My Vessel SettingsNOTE: Some settings and options require additional hardware.Some settings are available only when you have valid depthdata.Select Settings > My Vessel.Transducer Type: Displays the type of transducer connected tothe device (Selecting the Transducer Type, page 4).Keel Offset: Offsets the surface reading for the depth of a keel,making it possible to measure depth from the bottom of thekeel instead of from the transducer location (Setting the KeelOffset, page 11).Temp. Offset: Compensates for the water temperature readingfrom a temperature-capable transducer (Setting the WaterTemperature Offset, page 11).Setting the Keel OffsetYou can enter a keel offset to compensate the water depthreading for the transducer installation location. This allows youto view the depth of the water below the keel or the true depth ofthe water, depending on your needs.If you want to know the water depth below the keel or the lowestpoint of your boat and the transducer is installed at the waterline or anywhere above the end of the keel, measure thedistance from the transducer location to the keel of the boat.If you want to know the true water depth and the transducer isinstalled below the water line, measure the distance from thebottom of the transducer up to the water line.NOTE: This option is only available when you have valid depthdata.1 Measure the distance:• If the transducer is installed at the water line À oranywhere above the end of the keel, measure thedistance from the transducer location to the keel of theboat. Enter this value as a positive number.• If the transducer is installed at the bottom of the keel Áand you want to know the true depth of the water,measure the distance from the transducer to the waterline. Enter this value in as a negative number.2 Select Settings > My Vessel > Keel Offset.3 Select if the transducer is installed at the water line, orselect if the transducer is installed at the bottom of thekeel.4 Use the arrow keys to enter the keel offset measured in step1.Setting the Water Temperature OffsetYou can set the temperature offset to compensate for thetemperature reading from a temperature-capable sensor.1 Measure the water temperature using the temperature-capable transducer that is connected to the device.2 Measure the water temperature using a differentthermometer or temperature sensor that is known to beaccurate.3 Subtract the water temperature measured in step 1 from thewater temperature measured in step 2.This is the temperature offset. Enter this value in step 5 as apositive number if the sensor connected to the devicemeasures the water temperature as being colder than itactually is. Enter this value in step 5 as a negative number ifthe sensor connected to the device measures the watertemperature as being warmer than it actually is.4 Select Settings > My Vessel > Temp. Offset.5 Use the arrow keys to enter water temperature offsetmeasured in step 3.Alarms SettingsNavigation AlarmsSelect Settings > Alarms > Navigation.Arrival: Sets an alarm to sound when you are within a specifieddistance or time from a turn or a destination.Anchor Drag: Sets an alarm to sound when you exceed aspecified drift distance while anchored.Off Course: Sets an alarm to sound when you are off course bya specified distance.System AlarmsAlarm Clock: Sets an alarm clock.Device Voltage: Sets an alarm to sound when the batteryreaches a specified low voltage.GPS Accuracy: Sets an alarm to sound when the GPS locationaccuracy falls outside the user-defined value.Sonar AlarmsSelect Settings > Alarms > Sonar.Device Configuration 11