03101-L Anemometer

The 03101 is the 3-cup anemometer included with our Wind Sentry Sets. It can be purchased separately for applications that require only wind speed measurements. Campbell Scientific's version of the 03101 uses shielded bearings, which lowers the anemometer's starting threshold.
Rotation of the 03101's cup wheel produces an ac sine wave that is directly proportional to wind speed. The frequency of the ac signal is measured by a datalogger pulse count channel, then converted to engineering units (mph, ms, knots).
Features
3-cup anemometer
Rugged design; CSI version uses shielded rather than sealed bearings (lowers threshold)
No signal conditioning required
Specifications
Range: 0 to 50 ms (112 mph)
Gust Survival: 60 ms (134 mph)
Sensor: 12-cm diameter cup wheel assembly, 40-mm diameter hemispherical cups
Accuracy: ±0.5 ms (1.1 mph)
Turning Factor: 75 cm (2.5 ft )
Distance Constant (63% recovery): 2.3 m (7.5 ft)
Threshold: 0.5 ms (1.1 mph)
Transducer: Stationary coil; 1300 ohm nominal resistance
Transducer Output: AC sine-wave signal induced by rotating magnet on cup wheel shaft 100 mV peak-to-peak at 60 rpm; 6 V peak-to-peak at 3600 rpm
Output Frequency: 1 cycle per cup wheel revolution; 0.75 ms per Hz
Producing Area:USA