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Aneroid barograph used for the registration of atmospheric pressure.
• Measuring range: 955 to 1055 hPa
• Measuring accuracy (barograph): ± 0.7 hPa
• Diagram graduation: 1 hPa
Measuring element:
• Set of 7 aneroid capsules, Ø 62 mm, made of copper-beryllium alloy.
• This alloy offers outstanding elastic properties and has proven its reliability over many years.
• Age-hardening, hysteresis and elastic after-effects are practically eliminated.
• Temperature influence on the aneroid capsule set and transmission system is compensated by a bimetal across the entire measuring range and for temperatures between −30 and +40 °C (−22 to +104 °F).
Mechanism:
• All axles of the precision instrument are jewel-mounted to minimize idle friction.
• Parts of the measuring mechanism are made of polished brass.
Case:
• Mahogany coloured wooden case
• Dimensions: 345 × 170 × 180 mm
Clockwork:
• Mechanical winding clockwork
• Instantly switchable between daily or weekly revolution
• Periods: 25.6 h / 176 h
Accessories included:
• Fibre pen
• Set of 60 diagram papers for weekly revolution (sufficient for one year)
• Field of use: Indoors
• Colour: 22 – mahogany coloured
• Material: Brass, wood
