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V200A Ultrasonic Wind Sensor

Extremely precise and maintenance-free measurement of wind speed and wind direction

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 they have been used with traditional "cups and vanes". The digital or analog output delivers instantaneous, average, min or max value with flexible measuring rate. The V200A-UMB is heated in case reaching critical ambient conditions. Recommended for: meteorology or building automation. The following outputs/protocols are available: NMEA, ASCII, UMB and 4.. 20 mA analog.

  • Wind speed, wind direction, virtual temperature, barometric pressure
  • Ultrasonic
  • Wind detection with birdproof construction, maintenance-free measurement, suitable for extreme ambient conditions, ice-free operation, compatible interfaces
  • SDI-12, RS-485, various RS-485-protocols, analogue output
  • 8371.UA01
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  • Measuring wind direction and speed insusceptibly to bird nesting thanks to roofed construction
  • Built-in data pre-processing, universal interfaces and selectable output protocols – compatible with OTT-dataloggers, commercially available HydroMet dataloggers and PLS systems
  • Maintenance-free operation – no moving parts that can wear out thanks to ultrasonic measuring method; no need for re-calibration
  • 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 – guarantees ice-free operation in extremely low temperatures until -40 °C
  • Embedded algorithms that provides the wind speed and direction as actual and averaged values
  • Wind gust calculation regarding WMO (Guide to Meteorological Instruments and Methods of Observation)

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

Examples of Use:

  • Synoptical automatic weather stations of meteorological services
  • Weather stations at airports, marinas and onboard ships
  • Wind turbine control
  • Weather observation for road and traffic control systems
  • Mountain weather stations for avalanche and flood warning
  • Hydro-meteorological stations
Firmware - Lufft - Ventus-UMB
Version 37
Manual - Lufft - Ventus V200A (EN)
Manual - Lufft UMB Config Tool (EN)
Manual - Lufft UMB Protocol (EN)
Software - Lufft - ConfigTool .NET
Version 1.6
Software - UMB Config Tool
Video - Ventus: Easy Change of Wind Sensors on Wind Turbines - Windpower - WindBridge
Video - WS product family: Our modular concept of the WS-family
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Technical data
Dimensions Ø approx. 150 mm, height approx. 170 mm
Weight Approx. 0.8kg
Permissible ambient temperature -40...60°C (with heating)
-20...60°C (without heating)
Supply voltage with heating / without heating 24 VDC, max. 20 VA / 12 V
Bus operation Up to 32 devices
Operating voltage electronics 24 VDC ±10 % or 24 VDC/1.2 VA
without heating 12 VDC
Electrical connection 8 pole plug
Housing material Plastic
Protection type IP66
Pole diameter 50mm / 2"
Factory certificate Yes
Data output digital
Interface RS485 semi-/full duplex, isolated
Baud rate 1200 ... 57600
Measurement rate instantaneous value 250 ms; 1-10 s
Measurement rate avg (arithmetic, vector), Min, Max 1...10 min
Status Heating, sensor failure
Data output analog
Data output analog Only semi-duplex mode
Output signal 0...20 mA, 4...20 mA, 0...10V, 2...10V,
2...2,000 frequency (instantaneous, avg, min, max)
Load Max. 300 Ohm
Resolution 16 bit
Maximum operating height 3500m
Air pressure
Principle MEMS capacitive
Measuring range 300 ... 1200 hPa
Unit hPa
Accuracy ±1.5 hPa (0...40°C)
Wind direction
Principle Ultrasonic
Measuring range 0 ... 359.9 °
Unit °
Accuracy < 3° (> 1m/s) RMSE
Resolution 0.1 °
Wind speed
Principle Ultrasonic
Measuring range 0 ... 90 m/s
Unit m/s
Accuracy ±0.3 m/s or ±3% (0 … 35m/s) RMS
(the greater value counts);
±5% (> 35m/s) RMS
Resolution 0.1 m/s
Virtual temperature
Principle Ultrasonic
Measuring range -50 ... 70 °C
Unit °C
Accuracy ± 2.0°C (without heater and without sun exposure or wind > 4m/s)
Resolution 0.1 °K
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