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R.M. Young Prop & Vane Wind Sensor

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R.M. Young Prop & Vane Wind Sensor

    Improved reliability and lower cost thanks to rugged, light weight, sea air and pollutant corrosion-resistant construction
    • Construction of UV stabilized thermoplastic with stainless steel and anodized aluminum fittings
    • Injection-molded helicoid shape propeller
    • Propeller rotation produces AC sine wave voltage signal with frequency directly proportional to wind speed.
    • Slip rings and brushes are eliminated for increased reliability
    • Assures good fidelity in varying wind conditions
    • Vane position sensed by a precision potentiometer located in sealed chamber
    • Known excitation voltage applied to potentiometer element produces voltage directly proportional to azimuth angle.
    • Transient connections & cable terminations are in junction box on mounting post for ease in making sensor cable connections.
    • A 5 conductor cable is required for power and sensor connections.
    • Precision grade stainless steel precision ball bearings
    • Orientation ring for maintaining wind direction reference when the instrument is removed for maintenance

    WIND SPEED
    • Range
    0-100 m/s (224 mph), 0- 360°
    • Gust Survival
    220 mph (100 m/s)
    • Accuracy
    ±0.3 m/s (0.6 mph) or 1% of reading
    • Threshold
    Propeller – 2.2mph (1.0m/s)
    • Operating Temperature
    -50 to 50° C
    • Dynamic Response
    Propeller distance constant (63% recovery) 8.9 ft (2.7m)
    • Output
    Magnetically induced AC voltage, 3 pulses per revolution. 1800 rpm (90 Hz) = 8.8 m/s (19.7 mph)
    • Power Supply
    Potentiometer excitation: 15 VDC maximum
    WIND DIRECTION
    • Range
    360° mechanical 355° electrical (5 open)
    • Accuracy
    ±3 degrees
    • Threshold
    Vane – 2.4mph (1.1m/s)
    • Response
    50% recovery 4.3 ft (1.3m)
    • Damping Ratio
    0.3
    • Nat. Wavelength
    24.3 ft. (7.4m)
    • Output
    DC voltage from conductive plastic potentiometer – resistance 10K Ω, linearity 0.25%, life expectancy – 50 million revolutions
    • Power Supply
    15 VDC max
    GENERAL SPECIFICATIONS
    • Dimensions
    37 cm (14.6 in) H x 55 cm (21.7 in) L, Propeller: 18 cm (7 in) dia.
    • Weight
    Sensor: 2.2 lb. (1 kg.)
    • Mounting
    34 mm (1.34 in) dia. (standard 1 inch pipe)

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