BM3 type aneroid barometer is a deformation of a sensing device for atmospheric pressure measurement instruments. It easy to carry, accurate measurement, pressure measurement range, use the easy maintenance, no mercury, etc., widely used in meteorology, military, aviation, marine, agriculture, surveying, geological, industrial and mining enterprises and scientific research in areas such as measurement atmospheric pressure of conventional instruments.
How it works:
Aneroid barometer is made of thin-film flexible metal air box as a sensing element, which the atmospheric pressure converted to an empty box of flexible shift lever and the transmission mechanism driven by a pointer. When the clockwise deflection, the pointer changes to indicate the amount of outlet pressure, and vice versa, when the pointer counterclockwise deflection, indicating a change in air pressure to reduce the amount. When the empty box of elastic stress and atmospheric pressure equilibrium, the pointer to stop moving, then the pressure value indicated by the pointer is at atmospheric pressure.
Performance:
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measuring pressure range |
500 ~ 1020hPa; error: ± 3hPa |
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temperature range |
-10 ℃ ~ +40 ℃ minimum scale value of the instrument thermometer 1 ℃ |
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minimum graduation value of dial 1hPa |
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Weight |
,less than 1.5kg |
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the instrument size |
156mm × 156mm × 115mm |
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after the indication, temperature, add the amendment, the measurement error is less than 2.0hPa |
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