The Weather station

The Temperature sensor resolution is 0.1 degree C and has a range between -40 and +65 degrees C. The sensor accuracy is +/- 0.5 degrees C above -7 Degrees C, +/-1 degrees below -7 degrees C. The update interval is every 10 to 12 seconds. The FARS (Fan Aspirated Radiation Shield) ensures accuracy in not affected more than 0.3 Degrees C by midday full sun (1040 WM2) and wind below 2MPH. The Barometric Pressure resolution is 0.1 mb, and has a Nominal Accuracy of +/- 1.0 mb. The pressure shown is sea level pressure.
The Reletive Humidity resolution is 1% and ranges from 1 to 100%. Nominal Accuracy is +/- 3% 1-90% RH and 4% above 90% RH
The Rain Rate Resolution is 0.2 mm with a range up to a rain rate of 2438 mm/hr with a Nominal Accuracy of the greater of 5% or 1mm/hr Rainfall For the Month or Year has an accuracy of the greater of 4% or 0.2mm
The Anemometer is in 2 parts. Direction has 16 points (25.5 degrees) on a compass rose, 1 degree if in a numerical display with an accuracy of +/- 4 degrees. Speed is measured in units of 1MPH with a range from 2MPH to 150MPH with an accuracy of +/- 2MPH or 5% whichever is the greater. The update interval is instant, every 2.5 seconds. The average wind speed is taken over 10 Mins.
The Solar Sensor or Solar pyranometer has a spectral response (in 10% points) of 400 to 1100 nanometers. The cosine response is - Percent of reading, +/- 3% (0° to +/- 70° incident angle); +/-10% (+/-70° to +/-85° incident angle), and - Percent of full scale +/-2% (0 degrees to +/-90 degrees. The sensor is calibrated against a secondary standard which is calibrated periodically against an Eppley Precision Spectral Pyranometer in natural daylight.
The U.V sensor has a spectral response of 280 to 360 nm (Erythema Action Spectrum), and a cosine response +/-4% of reading (0° to 65° incident angle); +/-9% of reading (65° to 85° incident angle)

The content of this page will be improved over the next few weeks