05305-L RM Young Wind Monitor AQ

The 05305 is made out of lightweight, UV-stabilized thermoplastic with stainless steel and anodized aluminum fittings. The thermoplastic material resists corrosion from sea air environments and atmospheric pollutants. It uses stainless-steel precision-grade ball bearings for the propeller shaft and vertical shaft bearings. 

The 05305 measures wind speed with a helicoid-shaped, four-blade propeller. Rotation of the propeller produces an ac sine wave that has a frequency directly proportional to wind speed. The ac signal is induced in a transducer coil by a six-pole magnet mounted on the propeller shaft. The coil resides on the non-rotating central portion of the main mounting assembly, eliminating the need for slip rings and brushes. 

Wind direction is sensed by the orientation of the fuselage-shaped sensor body, which is connected to an internal potentiometer. The data logger applies a known precision excitation voltage to the potentiometer element. The output is an analog voltage signal directly proportional to the azimuth angle. 

Designed specifically for air quality measurements, the 05305 provides a lower starting threshold, faster response, and higher accuracy than the other wind monitors. It meets or exceeds the requirements published by the following regulatory agencies: 

• • U.S. Environmental Protection Agency—Ambient Monitoring Guidelines for Prevention of Significant Deterioration (PSD) and On-Site Meteorological Instrumentation Requirements to Characterize Diffusion from Point Sources 
  • U.S. Nuclear Regulatory Agency—NRC Regulatory Guide 1.23 Meteorological Programs in Support of Nuclear Power Plants 
  • American Nuclear Society—Standard for Determining Meteorological Information at Nuclear Power Plants 

Benefits and Features 

• • Compatible with most Campbell Scientific data loggers 
  • Constructed with thermoplastic material that resists corrosion from sea-air environments and atmospheric pollutants 
  • Lower starting threshold, faster response, and higher accuracy than the other wind monitors 
  • Meets or exceeds requirements of the following regulatory agencies: U.S. Environmental Protection Agency, U.S. Nuclear Regulatory Agency, and American Nuclear Society 
  • Compatible with the LLAC4 4-channel Low-Level AC-Conversion Module, which increases the number of anemometers one data logger can measure 
  • Compatible with the CWS900-series interfaces, allowing it to be used in a wireless sensor network