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Miscellaneous information
The program on your watch takes into consideration variations in atmospheric pressure
over the previous 8 hours to calculate the trend to be displayed, ensuring greater reliability
and precision than a "mechanical" barometer which only displays an instantaneous trend.
Furthermore, the variation in pressure caused by a rapid change in altitude is detected by
the program and compensated for automatically. It therefore has no influence on the
barometric trend.
Unit conversion: 1 hectoPascal [hPa] = 1 millibar [mb]
Technical data
Measuring range:
300 hPa to 1100 hPa
Accuracy:
±
3 hPa
Resolution:
1 hPa
The digital display gives the value of absolute
atmospheric pressure in hectoPascals [hPa].
Barometers and meteorological maps indicate
the value of pressure respect to the sea level.
-1010-: Pressure in hPa
1015
1010
990
995
1000
1005
1010
101
5
1020
1020
10
10
D
A
A
Stable weather
Barometer
Khaki Field Multi-Touch
Relative atm pressure Absolute atm pressure
Sea level
1013.25 hPa
1013.25 hPa
1000 m
1013.25 hPa
- 900 hPa
2000 m
1013.25 hPa
- 780 Pa
(D) : Depression (A) : Anticyclone
BAROMETER
Barometer function, indication of the meteorological trend
Description of the function
In this mode, your watch is transformed into a
BAROMETER. The hands superpose to indicate the
meteorological trend.
Explanations
Changes in weather are linked to variations in atmospheric
pressure.
The watch measures these variations in pressure and
indicates the meteorological trend.
When atmospheric pressure increases, the sky clears. The
hands move to the right.
This is called a "high pressure" zone or "anticyclone" (A).
When atmospheric pressure decreases, the sky clouds over.
The hands move to the left.
The is called a "low pressure" zone or "depression" (D).
The change in pressure is measured and displayed using
the hands which can assume the following 7 positions
depending on the meteorological trend:
-6' : Major drop in pressure, rapid deterioration
-4' : Moderate drop in pressure, probable deterioration
-2' : Minor drop in pressure, probable slight deterioration
12h : No notable meteorological change
+2' : Minor increase in pressure, probable slight improvement
+4' : Moderate increase in pressure, probable improvement
+6' : Major increase in pressure, rapid improvement
12
2
2
4
4
6
6
+
-
G
L O S S A R Y
G
L O S S A R Y
Manuel Ham_GB_2e manuel.qnx 1.10.2001 16:22 Page 16
