Garmin D2 MACH1, Owner'S Manual

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moving long distances or after extreme temperature
changes, you can manually calibrate the compass.
1 Hold MENU.
2 Select Sensors & Accessories > Compass > Calibrate >
Start.
3 Follow the on-screen instructions.
TIP: Move your wrist in a small figure eight motion until
a message appears.
Setting the North Reference
You can set the directional reference used in calculating
heading information.
1 Hold MENU.
2 Select Sensors & Accessories > Compass > North Ref..
3 Select an option:
• To set geographic north as the heading reference,
select True.
• To set the magnetic declination for your location
automatically, select Magnetic.
• To set grid north (000º) as the heading reference,
select Grid.
• To set the magnetic variation value manually, select
User > Mag. Variation, enter the magnetic variation,
and select Done.
Altimeter and Barometer
The watch contains an internal altimeter and barometer.
The watch collects elevation and pressure data
continuously, even in low-power mode. The altimeter
displays your approximate elevation based on pressure
changes. The barometer displays environmental pressure
data based on the fixed elevation where the altimeter was
most recently calibrated (
Altimeter Settings, page 40 ).
Altimeter Readings
The altimeter functions differently depending on the selected source.
You can adjust the altimeter settings by holding MENU, selecting Activities & Apps > Fly, selecting the activity settings,
and selecting Altimeter.
Sensor Source
Pressure Altitude reflects changes in ambient pressure.
GPS
Altitude is equal to the GPS altitude when GPS is available. Altitude defaults to the pressure altimeter when
GPS is unavailable.
Altimeter Settings
Hold MENU, and select Sensors & Accessories >
Altimeter.
Barometer: Allows you to set the barometric pressure
manually, or select a value from the nearest METAR
station through the Garmin Connect app.
Altitude Alert: Sets an alarm to vibrate when you reach a
specified altitude.
Sync to Elevation: Allows you to synchronize the watch to
your current elevation manually.
Set Standard Baro: Allows you to set the standard
barometric pressure.
Calibrating the Barometric Altimeter
Your watch was already calibrated at the factory, and
the watch uses automatic calibration at your GPS
starting point by default. You can manually calibrate the
barometric altimeter if you know the correct elevation.
1 Hold MENU.
2 Select Sensors & Accessories > Elevation > Calibrate.
3 Select an option:
• To enter the current elevation manually, select
Calibrate > Enter Manually.
• To enter the current elevation from the digital
elevation model, select Use DEM.
• To enter the current elevation from your GPS
starting point, select Use GPS.
Barometer Settings
From the barometer glance, press START, and select
Settings.
Calibrate: Allows you to manually calibrate the barometer
sensor.
Plot: Sets the time scale for the chart in the barometer
glance.
40 Sensors and Accessories