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Barometer Calibration
As barometric and altitude measurements are both
based on air pressure, calibrating the barometer
will automatically calibrate the altimeter. This is
practical in case you don't know the altitude but
have access to the internet or can call a local
weather station for current barometric information.
To calibrate barometer,
1.
Go to ALTI/BARO mode. If the diplay shows
ALTI mode, press START twice to Activate
BAROMETER. If you are already in BARO mode,
proceed to step 2.
2.
Press START and UP to go to Barometer
CALIBRATION and press START. The Sea level
PRESSURE value starts flashing on the display.
3.
Enter the correct value (hPa / inHg).
4.
Calibration OK is displayed for three seconds
before the display returns to BARO mode.
Barometric Trend
By using the barometer to predict possible weather
changes you can be better prepared and make
your outdoor activity more enjoyable and safer.
If the barometric trend is rising, the weather is
likely to get clearer but in cold climates, even
colder weather is likely to be on its way.
If the trend is dropping, the weather is likely to
get cloudier. The steeper or more rapid the drop,
the greater the chance of a storm. 1hPa/hour (or
0.03 inHg) drop in pressure can already signal
deteriorating weather. The graph is updated every
30 minutes and displays the changes in air
pressure over a rolling 24 hour period.
ENGLISH
10 Before Activity