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 |
|
