Capricorn II and II Plus Weather Stations

At-a-glance Display

• Barometric Pressure
• Temperature
• Wind Direction and Speed
• Relative Humidity (Capricorn II Plus Only)

Alarms

• Audio and visual alarms triggered by selectable high/low temperatures and high wind speed
• Alarm-controlled electrical output can be used to operate equipment (e.g. heaters, fans, sirens)

Memory

• Highest/lowest poutdoor temperaturep
• Highest/lowest pbarometric pressure
• Peak wind gusts/sustained high wind speed

Hardwood Cabinet

• Available in oak or walnut

Guaranteed Performance

• Long-lasting quality and proven reliability. We honor these promises with a two-year limited warranty, friendly customer service, and prompt technical assistance.

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Barometric pressure is measured using a temperature-compensated electronic transducer surrounded by a temperature-controlled oven. The Capricorn II microprocessor keeps track of changes in the barometric pressure and displays these changes on the front panel, warning of impending storms.

• Digital display in millibars or inches of mercury
• Indicates rising or falling

Accuracy: ± 0.15% of reading, or better from 29 to 31 inches of mercury at sea level for an ambient temperature between 64° and 82°F (18° to 28°C)
Range: 27 to 32 inches of mercury; 914 to 1084 millibars

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• Easy-to-read digital display in °C or °F
• Wind chill computed and displayed on command
• Flexible sensor positioning (up to 1000 feet/305 meters from console)

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The wind speed and direction sensors use a solid state, infrared optical design to decrease wear and improve reliability. These rugged sensors, with a design incorporating years of experience and testing, are enclosed in a PVC housing surrounding stainless steel parts. These sensors operate in extreme temperature and wind conditions for years.

• User selectable display in mph, km/h, or knots
• >Wind direction n 16 compass points
• Wind speed displays as low as 1 mph
• Flexible sensor positioning (up to 1000 feet/305 meters from console)
• Quick-disconnect cable connector for easy sensor removal

Wind Speed Accuracy: ± 5% or better from 20 to 125 mph
± 1 mph from 5 to 20 mph
Wind Speed Range: 0 to 125 mph; 200 km/h; 108 knots (higher gusts may be recorded)
Wind Speed Mechanical Threshold: 0.5 mph
Wind Direction Accuracy: 16 compass points

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Relative humidity is measured with a bulk polymer, resistive sensor. This state-of-the-art technology improves the sensor's resistance to chemicals and moisture. Thoroughly tested signal conditioning and an industrially-rated housing contribute to the sensor's high accuracy and longevity.

• Percent RH displayed continuously or alternately with temperature

Accuracy: ±5% or better from 20 to 95% RH at 25°C
± 2% or better at 50% RH at 25°C
Range: 0 to 99%, non-condensing at -40° to 130° F (-40° to 54°C)

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RS232C Interface/Data Formatter (Optional)

The interface device links Capricorn II weather stations to computers and serial peripheral devices including terminals, printers, and modems. Prints reports to a terminal or printer continuously, every 15, 30, or 60 minutes (without host computer).

Catalog Number: 8232
Data Sheet (PDF)
RS232 Interface User Manual (PDF)

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