The anemometer uses three lightweight hemispherical cups to measure wind speed. Cup wheel rotation produces an AC frequency that is linearly proportional to wind speed. The vane employs a balanced vane assembly with vane position sensed by a long life precision potentiometer. Precision stainless steel ball bearings are used throughout.
Range |
Wind Speed: 0-50 m/s (112 mph)
Azimuth: 360° mechanical, 352° electrical (8° open) |
Accuracy |
Wind Speed: ±0.5 m/s (1.1 mph)
Wind Direction: ±5° |
Threshold |
Anemometer: 1.1 m/s (2.5 mph)
Vane: 1.3 m/s (2.9 mph) at 10° |
Signal Output |
Wind Speed Signal: AC sine wave, 1 pulse per rev.
Wind Direction Signal: DC voltage from 10 Kohm
conductive plastic potentiometer, 1% linearity
life expectancy: 50 million revolutions. |
Power Requirement |
Potentiometer excitation: 15 VDC maximum |
Dimensions |
3Overall height: 32 cm
Crossarm Length: 28 cm between instrument centers
Vane length: 22 cm
Cup wheel diameter: 12 cm
Crossarm mounting: 34 mm diameter |
Shipping weight |
1.3 kg |
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