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    Lufft WS301 Ultrasonic weather sensor with solar pyranometer

    Item No: 8374-U01

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    Product Description

    Lufft WS301 Ultrasonic weather sensor with solar pyranometer
    Lufft WS301 Ultrasonic weather sensor with solar pyranometer

    For: air temperature / relative humidity / air pressure / solar radiation

    Integrated design with ventilated radiation protection for measuring:
    • Air temperature
    • Relative humidity
    • Air pressure
    • Solar Radiation
    Relative humidity is measured by means of a capacitive sensor element; a precision NTC measuring element is used to measure air temperature. Measurement data are available for further processing in the form of a standard protocol (Lufft-UMB protocol).

    CMP3 Solar pyranometer. Aspirated temperature/ humidity measurement. Open communication protocol:
    • ASCII
    • UMB
    • SDI12
    • Analog outputs in combination with 8160-UDAC
    Available with low-power setting for remote stations with solar power.

    Specifications and additional product information
    Lufft WS301-UMB 8374-U01
    Dimensions Ø approx. 5.09" (150mm), Height approx. 8.85" (225mm)
    Weight approx. 4.4lbs (2kg)
    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
    General Information
    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)
    Surge protection 8379-USP
    Power supply 24 V/4 A 8366-USV1
    RS485 to USB Cable 8160-RS485USB
    Digital-analog-converter 8160-UDAC
    20m Cable 8370-UKAB20 (Other lengths available)