OTT HydroMet - Veralto

LufftModel WS800-UMB -Smart Weather Sensor

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First and only compact all-in-one weather sensor with detection of lightning strikes. From the WS product family of professional intelligent measurement transducers with digital interface for environmental applications. Integrated design with ventilated radiation protection for measuring: Air temperature, relative humidity, precipitation intensity, precipitation type, precipitation quantity, solar radiation, lightning detection, air pressure, wind direction and wind speed. One external temperature sensor is connectable.

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  • Parameters measured: temperature, relative humidity, air pressure, wind direction, wind speed, precipitation intensity, precipitation quantity, radiation, lightning strikes
  • Measurement technology: Ultrasonic/Wind, NTC/T, Capacitive/RH/Pressure, Radar/Precipitation, radio wave emission/Lightning strikes
  • Product highlights: Wind detection with birdproof construction. First and only compact all-in-one weather sensor with lightning detection, low power, heater, aspirated radiation shield, maintenance-free operation, open communication protocol.
  • Interfaces: RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12
  • Article number: 8381.U01, 8381.U01-NA

Advantages of the Smart Weather Sensor WS800

  • Measuring wind direction and speed insusceptibly to bird nesting thanks to roofed construction
  • First and only all-in-one compact weather sensor with lightning detection
  • Built-in data pre-processing, universal interfaces and selectable output protocols
  • Compatible with many commercially available Met/HydroMet dataloggers and PLS systems thanks to an open communication protocol
  • Maintenance-free operation – no moving parts that can wear out
  • Suitable for all climate zones; also for solar-powered automatic meteorological stations
  • Integrated heater that can be switched on if there is danger of frost
Examples of use of the Smart Weather Sensor WS800

The robust and maintenance-free smart weather sensor WS800 is designed for professional meteorological applications in all climate zones. It delivers reliable data, even in extreme ambient conditions.

Examples of use:

  • Weather observation for road and traffic control systems
  • Automatic weather station / Automatic weather sensor (AWS)
  • PV-Monitoring / Solar Monitoring on photovoltaic farms
  • Hydro-meteorological stations
  • Weather observation for building automation
  • Weather stations at airports, marinas and onboard ships
  • General :
    • Dimensions : Ø approx. 150 mm, height approx. 317 mm
    • Weight : Approx. 1.5 kg
    • Interface : RS485, 2 - wire, half - duplex
    • Power supply : 11...32 VDC
    • Power supply : 5...11 VDC (electronics with limited precision of measurements)
    • Power supply : 24 VDC +/- 10% (heater)
    • Operating temperature : -50...60°C (with heater)
    • Operating rel. humidity : 0...100% RH
    • Cable length : 10 m
    • Protection level housing : IP66
    • Mast mounting suitable for : Mast diameter 60 - 76 mm
  • Lightning detection :
    • Lightning detection : Number of lightning events
    • Coverage area : 5 - 10 km
  • Air temperature :
    • Principle : NTC
    • Measuring range : -50...60 °C
    • Unit : °C
    • Accuracy : ±0.2°C (-20...50°C), otherwise ±0.5 °C (> -30 °C)
  • Relative humidity :
    • Principle : Capacitive
    • Measuring range : 0 ... 100 % RH
    • Unit : % RH
    • Accuracy : ±2 % RH
  • Air pressure :
    • Principle : MEMS capacitive
    • Measuring range : 300 ... 1200 hPa
    • Unit : hPa
    • Accuracy : ±0.5 hPa (0...40 °C)
  • Wind direction :
    • Principle : Ultrasonic
    • Measuring range : 0 ... 359.9 °
    • Unit : °
    • Accuracy : < 3° RMSE > 1.0 m/s
  • Wind speed :
    • Principle : Ultrasonic
    • Measuring range : 0...75 m/s
    • Unit : m/s
    • Accuracy : ±0.3 m/s or ±3 % (0...35 m/s) ±5 % (>35 m/s) RMS
    • Resolution : 0.1
  • Precipitation (liquid) :
    • Droplet size : 0,3 … 5 mm
    • Detection sensitivity : 0,01 mm/h
    • Particle velocity : 0.9 ... 15.5 m/s
    • Precipitation types : rain/ snow
    • Solid precipitation : 5.1 ... ~30 mm
    • Intensity range : 0…200mm/h
    • Intensity resolution : 0.01 mm/h
    • Amount resolution : 0.1 mm
    • Accuracy : 20 % under laborary conditions
    • Reproducibility : Typical >90 % under laborary conditions
  • Radiation :
    • Unit : W/m²
    • Accuracy : 5%
    • Response time (95%) : < 1s
    • Spectral range : 300 to 1100 nm
    • Measuring range : 1400 W/m²