Suunto Observer - Pressure Sensor Calibration; Battery Replacement; To Set or Check Unit of Measurement Settings

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To set or check Unit of Measurement settings
If the mode indicator is not on TIME, press the [MODE] button until it is directly below TIME.
1. Press the [MODE] and [SELECT] buttons simultaneously for 3 seconds to enter the setup
mode. The top field will display SET momentarily and then change to UNI.
NOTE: Setup mode will automatically exit if left idle for more than one minute.
2. Press the [SELECT] button for 2 seconds to view the first setting. You will see the first unit
flashing.
WARNING: If you perform a short press of the [SELECT] button while in the UNI setting
mode, you will switch to Pressure Sensor Calibration. Refer to the next section for more details.
3. Press the [SELECT] button to move to the unit you want to change. You can change the
flashing unit. The units are in the following order: m/ft, m/min / ft/min, hPa/inHg, ºC/ºF.
4. Press the [ON OFF] or [QUICK] button to toggle between the metric and imperial settings.
5. To confirm the setting(s), press the [MODE] button.
6. To exit the setup process, press the [MODE] button again.
PRESSURE SENSOR CALIBRATION
WARNING: This is a FACTORY CALIBRATION SETTING. Do not enter this mode.
If you enter this mode in error, exit immediately by pressing the [MODE] or [SELECT] button
to return to the UNI setting mode. Normally there is no need to alter the calibration.
If the Pressure Setting Calibration has been altered, you can return the factory setting. Proceed
as follows: In the calibration setting mode, scroll the barometric pressure value up or down until
text REF appears. This is the factory setting. Then exit by pressing [MODE].
BATTERY REPLACEMENTS
The Observer operates on a three-volt lithium cell Type: CR 2032. The maximum life expect-
ancy is approximately 12 months.