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    Item No: 8371_UA01

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    Product Description

    Ultrasonic wind sensor / wind velocity / wind speed / wind direction/ acoustic virtual temperature

    Extremely precise and maintenance-free measurement of wind velocity and wind direction as well as calculation of acoustic virtual temperature.

    The ultrasonic wind sensor is designed without mechanical parts as opposed to traditional “cups and vanes”.

    Robust design and precise measurements allow for efficiency and accuracy of project control. Heated for use in cold weather climates.

    Recommended for:

    • Meteorology
    • Building automation
    • Wind profile measurement
    • Small wind turbines

    The following outputs/protocols are available:

    • NMEA
    • ASCII
    • UMB
    • 4.. 20 mA, 0...10V, frequency (analog)
    • SDI12

    Specifications and additional product information
    Lufft V200A-UMB 8371.UA01
    Dimensions Ø approx. 150mm, height approx. 200mm
    Weight approx. 0.8kg
    Wind direction
    Principle Ultrasonic- 2.4 Ghz
    Measuring range 0.1…359.9°
    Resolution 0.1°
    Accuracy <3° RMSE ab 1.0m/s
    Response time 0.3m/s
    Measuring rate 60 partial measurements/15 measurements per second
    Measurement output rate 1-10 seconds adjustable– default 10s
    Wind speed
    Principle Ultrasonic- 2.4 Ghz
    Measuring range 0…75m/s
    Resolution 0.1m/s
    Accuracy ±0.3m/s or 3% (0...35m/s) of reading, whichever is greater ±5% (> 35m/s) RMSE
    Start-up Threshold 0.3m/s
    Unit m/s; km/h; mph; kts
    Virtual temperature
    Principle Ultrasonic
    Measuring range -58...+158°F (-50°C...+70°C)
    Resolution 0.1 K
    Accuracy ± 2.0K (without heater and without sun exposure)
    Measuring rate 60 partial measurements/15 measurements per second
    Measurement output rate 1-10 seconds adjustable – default 10 s
    Air pressure
    Principle MEMS Capacitive
    Measuring range 300 … 1200 hPa
    Accuracy ±0.5 hPa
    Data output digital
    Interface RS 485 semi-/full duplex, isolated
    Baud rate 1200-57600
    Measurement rate instant. value 1-10s
    Measurement Avg (arithmetic, vector), Min, Max 1-10min
    Status Heating, sensor failure
    Data output analog only semi-duplex mode
    output signal 4-20mA, 0...10V frequency (instantaneous, avg, min, max)
    Load max. 300 Ohm
    Resolution 16 bit
    General Information
    Operating temperature -40..+60°C (with heating)
    Bus operation up to 32 devices
    Operating voltage electronics 24 VDC ±10% or 24 VDC/1.2 VA
    with heater 24 V DC, max. 30 VA
    Connection 8 pole plug
    Housing material Plastic
    Protection IP65
    Pole diameter 50 mm / 2"
    factory certificate yes
    Surge protection 8379.USP-V
    Power supply 24V/10A 8366.USV2
    RS485 to USB Cable 8160RS485USB
    Connection cable Ventus/V200A, 15m incl. connector 8371.UK015
    Connection cable Ventus/V200A, 50m incl. connector 8371.UK050
    Connector Ventus/V200A 8371.UST1