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    WS501 UMB Compact Weather Station

    Item No: 8375-U01

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    Product Description

    WS501 UMB Compact Weather Station
    Lufft WS501 Ultrasonic Weather Sensor with Solar Pyranometer

    Measures air temperature / relative humidity / air pressure / wind speed / wind direction / solar radiation Integrated design with ventilated radiation protection for measuring:

    • Air temperature
    • Relative humidity
    • Air pressure
    • Wind direction
    • Wind speed
    • Solar Radiation
    Relative humidity is measured by means of a capacitive sensor element; a precision NTC measuring element is used to measure air temperature. Ultrasound sensor technology is used to take wind measurements. Measurement data are available for further processing in the form of a standard protocol (Lufft-UMB protocol).

    CMP3 Solar pyranometer. Ultrasonic wind sensor. Maintenance-free operation. Open communication protocol:
    • ASCII
    • UMB
    • SDI12
    • Analog outputs in combination with 8160-UDAC
    • Comes with 10m cable

    Available with low-power setting for remote stations with solar power.

    Specifications and additional product information
    Lufft WS501-UMB 8375-U01
    Dimensions Ø ca. 5.09" (150mm), Height approx. 11.42" (290mm)
    Weight approx. 2.87bs (1.3kg)
    Principle NTC
    Measuring range -58...140°F (-50...60°C)
    Accuracy ±0.2°C (-4...122°F/ -20°C...+50°C), otherwise ±0.5°C (>-22°F/-30°C)
    Relative humidity
    Principle capacitive
    Measuring range 0…100% RH
    Accuracy ±2% RH
    Response Time (95%) 18s
    Non-stability (change/year) ±1%
    Non-linearity (0 to 1,000 W/m2) ±2.5%
    Directional error (at 80° with 1,000W/m2) ±20W/m2
    Temperature dependence of sensitivity ±5% (-10 to +40°C)
    Tilt error (at 1,000W/m2) ±3%
    Spectral range (50% points) 300 to 2,800nm
    Typical signal output for atmospheric applications 0 to 20mV
    Operating temperature -40 to +80°C
    Maximum irradiance 1,500W/m2
    Air Pressure
    Principle MEMS capacitive
    Measuring range 300...1200 hPa
    Accuracy ±0.5hPa
    Wind direction
    Principle Ultrasonic- 2.4 Ghz
    Measuring range 0…359.9°
    Accuracy ±3°
    Wind speed
    Principle Ultrasonic- 2.4 Ghz
    Measuring range 0…75m/s
    Accuracy ±0.3m/s or ±3% (0…35m/s)
    General Information
    Heating 40 VA at 24 VDC
    Protection type housing IP66
    Interface RS 485 2-wire, half duplex
    Operating power consumption 24 VDC +/- 10% < 4VA (without heating)
    Operating humidity range 0...100%
    Operating temperature range -58...140°F (-50...60°C)
    WS 20m Cable 8370-UKAB20 (Other lengths available)