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Calibrating the Barometric Altimeter
Your device was already calibrated at the factory, and the device uses automatic calibration at your GPS starting
point by default. You can manually calibrate the barometric altimeter if you know the correct elevation.
1 Select > System > Calibrate.
2 Select an option:
• To calibrate automatically from your GPS starting point, select Auto Cal..
• To enter the current elevation manually, select Calibrate > Enter Manually.
• To enter the current elevation from the digital elevation model (DEM), select Calibrate > Use DEM.
• To enter the current elevation from your GPS starting point, select Calibrate > Use GPS.
Calibrating the Compass
NOTICE
Calibrate the electronic compass outdoors. To improve heading accuracy, do not stand near objects that
influence magnetic fields, such as vehicles, buildings, and overhead power lines.
Your device was already calibrated at the factory, and the device uses automatic calibration by default. If you
experience irregular compass behavior, for example, after moving long distances or after extreme temperature
changes, you can manually calibrate the compass.
1 Select > System > Calibrate Compass.
2 Follow the on-screen instructions.
Replacement O-rings
Replacement bands (O-rings) are available for the mounts.
NOTE: Use Ethylene Propylene Diene Monomer (EPDM) replacement bands only. Go to http://buy.garmin.com,
or contact your Garmin dealer.
Getting More Information
• Go to support.garmin.com for additional manuals, articles, and software updates.
• Go to buy.garmin.com, or contact your Garmin dealer for information about optional accessories and
replacement parts.
74 Troubleshooting
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