Alti-Baro; Getting Correct Readings - Suunto AMBIT3 PEAK 2.4 User Manual

Suunto Ambit3 Peak

3.3. Alti-Baro

With ALTI-BARO you can view the current altitude or barometric pressure. Press [Next] in
TIME mode to view the ALTI & BARO display.
You can show/hide the ALTI-BARO display under the start menu DISPLAYS » Alti-Baro.
Toggle with [Next] .
You can access different views depending on which profile is activated by pressing [View] .
Three profiles are available: Automatic, Barometer and Altimeter. For information on setting
profiles, see 3.3.2. Matching profile to activity.
Sunrise and sunset time views are available when GPS has been activated. If GPS is not
active, sunrise and sunset times are based on the last recorded GPS data.

3.3.1. Getting correct readings

Suunto Ambit3 Peak constantly measures absolute air pressure using the built-in pressure
sensor. Based on this measurement and reference values, it calculates altitude or sea level air
pressure.
CAUTION: Keep the area around the sensor free of dirt and sand. Never insert any
objects into the sensor openings.
If your outdoor activity requires accurate sea level air pressure or altitude, you need to
calibrate your Suunto Ambit3 Peak by entering either your current altitude or the current sea
level air pressure.
TIP: Absolute air pressure and known altitude reference = sea level air pressure.
Absolute air pressure and known sea level air pressure = altitude.
The altitude of your location can be found from most topographic maps or Google Earth. A
sea level air pressure reference for your location can be found using the websites of national
weather services.
If Suunto FusedAltiTM is activated, the altitude reading will be corrected automatically using
FusedAlti together with altitude and sea level pressure calibration. For more information, see
3.14. FusedAlti.
Changes in local weather conditions will affect altitude readings. If local weather changes
often, it is advisable to reset the current altitude reference value frequently, preferably before
starting your journey when the reference values are available. As long as the local weather
stays stable, you do not need to set reference values.
To set the sea level pressure and altitude reference values:
1. Keep [Next] pressed to enter the options menu.
2. Scroll to ALTI-BARO with [Light Lock] and enter with [Next] .
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