Item No. LEW301
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Three-cup mechanical anemometer to IS 5912:1970 that measures the total run of wind on a counter up to 9999.9 km.
Overview
The cup counter anemometer measures the run of wind passing the point of observation. It is often used at agro-meteorological stations, mounted 2 m above the ground, where the run of wind helps estimate potential evapotranspiration.
Three conical cups turn at a speed proportional to the wind speed and drive a mechanical counter with a range of 0 to 9999.9 km. Readings at the start and end of a period give the wind run, and from that the average wind velocity.
The instrument is made to IS 5912:1970, with a weather-resistant body for constant outdoor exposure.
Key features
How it works
Wind turns the three conical cups at a speed proportional to the wind speed.
The mechanical counter records the total run of wind.
The difference between two readings, over the time between them, gives the average wind velocity.
Key specifications
| Parameter | Value |
|---|---|
| Measures | Wind run and average wind velocity |
| Counter range | 0 to 9999.9 km |
| Standard | IS 5912:1970 |
| Rotor | Three conical cups |
| Type | Mechanical, no power needed |
★ also shown at the top of the page.
FAQ
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