Tuesday, April 28, 2009

STARPATH - Fischer Barometers.....


Fischer Precision Aneroid Barometer

Accuracy: ± 0.7 mb (± 0.02 inHg) Graduation: 0.5 mb and 0.01 inHg Dial: dull white finish; diameter 5.1" Units on dial: mb and inches of mercury Housing Diameter: 6.5" Weight: 1.6 pounds Measuring Range: 890 to 1050 mb = 26.30" to 31.00" For use at elevations of 0 to 2,600 ft.

Precision aneroid barometers are used for measuring the absolute atmospheric pressure. Because of the excellent instrument properties an aneroid barometer is indispensable particularly for meteorology, ocean shipping, industry and research.

The self-stable set of five aneroid capsules, used in our precision aneroid barometers, is made of a corrosion proof copper-beryllium-alloy. This alloy has been well established for measuring the atmospheric pressure for many years because of its remarkable elastic properties. The aneroid capsules are nearly free of age-hardening, hysteresis and elastic after-effects.

The influence of temperature on the set of aneroid capsules and the transmission system is compensated by a bimetal arm over the whole measuring range and for temperatures between -30 to +40 °C (-22 to 104 °F). The motion of the aneroid capsule is transmitted to the axle of the pointer by driving a segment and wheel with an excellent fine finish gearing. All bearings also have an excellent fine finish. The Instruments have only a bare minimum of idle friction because of the advantageous shape of the levers and bearings.

To most experts, this is the best aneroid barometer in the world for less than $5,000. It has been tested at sea for over 70 years. Includes a unique double needle to remove parallax error in reading.

The new dial showing both mb and inches of mercury has been custom made for Starpath.
A certificate of accuracy (view sample) is provided with each instrument. Each has a unique serial number on a metal plate on the top of the instrument.

Unique new barometer calibration resource at www.starpath.com/barometers. Go to that page, enter your latitude and longitude and elevation, and it will tell you the 10 closest sources of accurate pressure with a link to each one. There is also an instructions sheet with work forms.

For more information - contact Starpath at www.starpath.com/fischer

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