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TFA 20.1002.04 - Weather station
Varenr.: [25970333] | Producent: TFA | Model-nr.: TFA20.1002.04 | EAN: 4009816003461
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The weather station includes a barometer, hygrometer and thermometer - all instruments are 70 mm in diameter. The base is beech stained in a shade of mahogany.
Technical parameters
Width: 110 mm
Height: 270 mm
Instrument diameter: 70 mm
Weight: 430 g
Instrument colour: gold
Bezel colour: gold
Base colour: beech - mahogany staining
Thermometer: Yes
Barometer: Yes
Hygrometer: Yes
How does the barometer work?
A mechanical barometer or strain gauge, also known as an aneroid, works on the following principle: when the ambient air pressure rises, the metal aneroid box inside the gauge is compressed; if it falls, it is expanded. These fluctuations are transmitted by a set of levers on the needle. The internal mechanism, however, has its friction surfaces and transmission resistance, and therefore every mechanical barometer has its own internal hysteresis, which manifests itself in a certain delay of the pointer. This is also why it is necessary to tap the instrument to get an accurate instantaneous atmospheric pressure reading.
Technical parameters
Width: 110 mm
Height: 270 mm
Instrument diameter: 70 mm
Weight: 430 g
Instrument colour: gold
Bezel colour: gold
Base colour: beech - mahogany staining
Thermometer: Yes
Barometer: Yes
Hygrometer: Yes
How does the barometer work?
A mechanical barometer or strain gauge, also known as an aneroid, works on the following principle: when the ambient air pressure rises, the metal aneroid box inside the gauge is compressed; if it falls, it is expanded. These fluctuations are transmitted by a set of levers on the needle. The internal mechanism, however, has its friction surfaces and transmission resistance, and therefore every mechanical barometer has its own internal hysteresis, which manifests itself in a certain delay of the pointer. This is also why it is necessary to tap the instrument to get an accurate instantaneous atmospheric pressure reading.