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CHAPTER 5 BAROMETRIC MODE
Note: This feature applies to the Altimax, Vector and X-Lander.
The Barometric function provides the user with:
an adjustable unit of measure mbar or inHg; mbar range 300 to 1 100 mbar, inHg range 8.90 to 32.40;
a resolution of 1 mbar or 0.05 inHg;
a one hour interval measuring to estimate barometric trend;
an automatic 4-day memory of atmospheric pressure for the last 6 hours in 1-hour intervals, thereafter,
in 6-hour intervals;
temperature compensation (temperature does not effect the pressure within the specified temperature
range)
a temperature range -20
O
to 60
O
C or -5
O
to 140
O
F; and
a temperature resolution of 1
O
C or F.
Note: Body heat will effect temperature when the Wristop Computer is worn on the wrist. To achieve an
accurate reading remove the Wristop Computer from the wrist and allow at least 15 minutes before
reading the temperature.
If youve been in the barometric mode for more than 15 minutes with no rate of vertical movement, you
should allow 1 hour for the Wristop Computer to adjust the temperature. To acquire a quicker up-date
of the temperature, press the [Mode] button 4 times to re-enter the mode.
To view and use the Barometric function:
Check the Mode Indicator Bar. If the mode arrow is not on BARO, PRESS the [Mode] button until the
arrow is directly below BARO on the bar.
In the Barometric mode:
Field 1 displays the current temperature.
Field 2 displays the current absolute atmospheric pressure.
Field 3 displays the current time.
The Outer Circumference graphically displays the atmospheric pressure over 100 millibars or 1 inHg
where one complete circle is equivalent to 100 mbar/1 inHg, depending on the unit of measure chosen.
Note: The absolute pressure is the actual pressure in any location at any given time. Where as, sea level
pressure is the corresponding pressure at sea level.