G L O S S A R Y
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.
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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:
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
6 | 4 | 212 2 4 | 6 |
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| G L O S S A R Y |
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| A |
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The digital display gives the value of absolute | 1020 |
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1015 |
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atmospheric pressure in hectoPascals [hPa]. | 0 |
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| 101 |
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Barometers and meteorological maps indicate |
| D |
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the value of pressure respect to the sea level. |
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| 990 |
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| 995 |
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| 1010101 |
| 17 | |
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| 0 | 1000 |
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| 1 |
| 5 |
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| 1005 | 020 |
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| 10 |
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Stable weather | Barometer | Khaki Field |
| 1 | A |
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| Relative atm pressure | Absolute atm pressure |
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Sea level | 1013.25 hPa | 1013.25 hPa | (D) : Depression | (A) : Anticyclone |
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1000 m | 1013.25 hPa | - 900 hPa |
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2000 m | 1013.25 hPa | - 780 Pa |
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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 |
