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Wind Speed
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Wind Direction
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Wind Alarms
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Wind Speed\Direction Transmitters
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Barometric Pressure
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Air Temperature and Humidity
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RainFall
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Solar Radiation
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Displays & Recorders
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Accessories
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Weather Station
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Electric Power Systems
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Mercury, Model A70-P Barometric Pressure Transmitter
Use: General Monitoring
Barometric pressure is sensed by an integrated silicon absolute presure sensor with internal temperature compensation. The sensor is mounted to the signal conditioner board. A 3/16 inch diameter tube may be attached to the sensor to provide remote pressure sensing. The output of the sensor is scaled to provide the desired output signal.
Systems are available with outputs of 0-1 mA, 0-1V or 4-20 mA. All systems may be powered from either 120 VAC, 230 VAC or 12-24 VDC.
The instruments are available in a variety of packages including steel JIC boxes meeting NEMA 12 standards, weatherproof fiberglass enclosures meeting NEMA 4X, IP66 and IEC 529 standards and track mounted versions. NEMA 12 enclosures provide protection from dust for indoor applications. NEMA 4X enclosures may be used indoors or outdoors. They provide protection from corrosion, wind blown dust and rain and are undamaged by ice. Track mounted versions are intended for mounting inside an enclosure provided by the user. Where required, electrical connection to the sensor is via terminal block. A barrier strip is provided for connection to operating power.
Each system is provided with a detailed instruction manual.
Systems are available with outputs of 0-1 mA, 0-1V or 4-20 mA. All systems may be powered from either 120 VAC, 230 VAC or 12-24 VDC.
The instruments are available in a variety of packages including steel JIC boxes meeting NEMA 12 standards, weatherproof fiberglass enclosures meeting NEMA 4X, IP66 and IEC 529 standards and track mounted versions. NEMA 12 enclosures provide protection from dust for indoor applications. NEMA 4X enclosures may be used indoors or outdoors. They provide protection from corrosion, wind blown dust and rain and are undamaged by ice. Track mounted versions are intended for mounting inside an enclosure provided by the user. Where required, electrical connection to the sensor is via terminal block. A barrier strip is provided for connection to operating power.
Each system is provided with a detailed instruction manual.
TECHNICAL SPECIFICATION:
| Range: | 27-31 inches or mercury or 900-1100 milibar |
| Worse case error: | +/- 0.05 inches Hg or +/- 2 milibar |
| Size: | Track Mount 1.75"W x 5.0"L X 1"H NEMA 12 6"W X 8"H X 4"D NEMA 4X 6"W X 8"H X 4"D |
| Weight : | Track Mount 1 lbs NEMA 12 6 lbs NEMA 4XFG 4 lbs NEMA 4XSS 6 lbs |
| Operating Temperature : | Electronics 0/60°. C |
| Connectors : | Barrier strips to accept AWG #12 or smaller wire |
| Options : | Expanded Ranges |
| Accessories : |
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Product Specification Sheet: Model A70-P Barometric Pressure Transmitter
EPA Meteorological Monitoring Guidance for Regulatory Modeling Applications EPA-454/R-99-005
Fundamentals of Physical Geography by Dr. Michael Pidwirny
On Line Meteorolgy Guide - Pressure Module - Univ. of Illinois