The YOUNG Model 05305 Wind Monitor-AQ measures horizontal wind speed and direction. Adapted from our Model 05103, this sensor is designed to meet many air quality specifications. A lightweight, carbon fiber thermoplastic (CFT) helicoid propeller, used to measure wind speed, generates an AC sine wave signal upon rotation. Wind direction is determined by a lightweight, balanced, vane attached to a precision potentiometer inside an internal housing. UV stabilized plastic with stainless steel and anodized aluminum parts are used in the construction of the sensor. The sensor mounts on a standard 1-inch IPS pipe. A mounting orientation ring is included that engages with the base of the sensor to retain orientation when the sensor is removed for maintenance. Terminations are made in a junction box at the base of the sensor by small clamp-style connectors

Technical Specification

Parameter	Specification
Wind Speed Range	0–50 m/s (0–112 mph)
Azimuth Range	360° mechanical, 355° electrical (5° open)
Wind Speed Accuracy	±0.2 m/s (±0.4 mph) or 1% of reading
Wind Direction Accuracy	±3°
Propeller Threshold	0.4 m/s (0.9 mph)
Vane Threshold	0.5 m/s (1.0 mph) at 10°
Propeller Distance Constant	2.1 m (6.9 ft), 63% recovery
Vane Delay Distance	1.2 m (3.9 ft), 50% recovery
Damping Ratio	0.45
Damped Natural Wavelength	4.9 m (16.1 ft)
Undamped Natural Wavelength	4.4 m (14.4 ft)
Wind Speed Signal Output	Magnetically induced AC voltage, 3 pulses per revolution
Wind Speed Calibration	1800 rpm (90 Hz) = 8.8 m/s (19.7 mph)
Wind Direction Signal Output	DC voltage from conductive plastic potentiometer
Potentiometer Resistance	10 kΩ
Potentiometer Linearity	0.25%
Potentiometer Life Expectancy	50 million revolutions
Potentiometer Excitation	15 VDC maximum
Operating Temperature	-50°C to +50°C
Overall Height	38 cm (15.0 in)
Overall Length	65 cm (25.6 in)
Propeller Diameter	20 cm (7.9 in)
Mounting Diameter	34 mm (1.34 in), suitable for standard 1-inch pipe
Unit Weight	0.7 kg (1.5 lbs)
Shipping Weight	2.3 kg (5 lbs)