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The 30206, manaufactured by R. M. Young Company, measures wind speed and direction with a 3-cup anemometer and a wind vane mounted on a small crossarm. This version of the 03002-L Wind Sentry Set has a 13 ft cable that terminates in a prewired connector, which attaches to the Solar800 enclosure.Read More
The 30206 uses a cup wheel assembly to measure wind speed. Rotation of the cup wheel produces an ac sine wave that is directly proportional to wind speed. The frequency of the ac signal is measured by a data logger pulse count channel, then converted to engineering units (mph, m/s, knots). Campbell Scientific’s version uses shielded bearings, which lowers the anemometer’s threshold.
Wind direction is sensed by a potentiometer. With the precision excitation voltage from the data logger applied to the potentiometer element, the output signal is an analog voltage that is directly proportional to the azimuth angle of the wind direction.
|Operating Temperature||-50° to +50°C (assuming non-riming conditions)|
|Overall Height||32 cm (12.6 in.)|
|Crossarm Length||40 cm (15.7 in.) between instruments (center-to-center)|
Wind Speed (Anemometer)
|Range||0 to 50 m/s (112 mph)|
|Gust Survival||60 m/s (134 mph)|
|Accuracy||±0.5 m/s (1.1 mph)|
|Turning Factor||75 cm (2.5 ft )|
|Distance Constant||2.3 m (7.5 ft) 63% recovery|
|Threshold||0.5 m/s (1.1 mph)|
|Cup Wheel Diameter||12 cm (4.7 in.)|
|Weight||113 g (4 oz)|
Wind Direction (Vane)
|Electrical Range||352° (8° open)|
|Delay Distance||0.5 m (1.6 ft) 50% recovery|
|Transducer Excitation||Requires regulated dc voltage. (15 Vdc maximum)|
|Transducer Output||Analog dc voltage proportional to wind direction angle (with regulated excitation voltage supplied by the data logger)|
|Vane Length||22 cm (8.7 in.)|
|Weight||170 g (6 oz)|
The 30206 is a component of the Solar800 station.