OTT HydroMet - Model LUFFT WS100 - Radar Precipitation Sensor / Smart Disdrometer
From LUFFT - Precipitation Sensors
The LUFFT WS100 is a radar precipitation sensor with adjustable heating. Using a 24-GHz Doppler radar, it measures the speed of all forms of condensed water including rain, freezing rain, hail, snow, and sleet. The low-energy sensor detects precipitation from the first drop. Its possible uses are nearly unlimited. Whether in hydrology and water management, agricultural and environmental science, building automation, meteorology or airport and traffic control: The smart disdrometer measures rain almost anywhere in the world.
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Product Details
- Parameters measured: Rain/precipitation quantity, rain/precipitation type (Rain, snow, sleet, freezing rain, hail)
- Measurement technology: 24GHz Doppler radar
- Product highlights: Very fast response time, maintenance-free measurement, present weather detection
- Interfaces: RS-485 semi-duplex two-wire, SDI-12, pulse interface / UMB protocol, Modbus
Advantages:
Absolutely maintenance-free and low-energy 24-hour operation
- Maintenance-free operation through ingenious technology without any moving parts
- Energy-saving sensor thanks to the improved ECO mode (0.4 VA)
- Extended heating capacity allows operation in summer as well as in winter
- Improved heating power with lower power consumption: Sensor heating integrated directly on the dome wall, power consumption with 9 VA heating.
- Very long service life and high operational reliability due to high quality components
Every second counts: Precise precipitation measurement from the first drop
- Extremely fast measurement from the first raindrop
- Detection of precipitation and rainfall (rain, freezing rain, hail, snow and sleet)
- Detection of drop size (0.3 to 5 mm)
- Differentiation between 11 classifications of drop sizes
- Sensor provides rain intensity with higher resolution starting from 0.01 mm
- Improved measurement accuracy thanks to patented self-developed radar module
Precision sensor with radar technology designed for all industrial needs
- Precipitation sensor with radar technology: 24GHz Doppler radar
- Use of a lens for focusing the measuring beam Industry-wide application: hydrology, agriculture, building automation, metrology, winter service, airport and traffic control
- Particularly suitable for places or areas which are difficult to access due to being maintenance-free
- No maintenance or calibration, no additional hidden costs
Designed for all common data loggers and data acquisition systems
- Multiple and simultaneous interfaces for data output and communication
- SDI-12 and RS-485 Modbus for reliable data transmission
Examples of Use:
The maintenance-free and extremely fast measurement of precipitation type and intensity fits perfect the needs of the following applications...
Examples of Use:
- Weather observation for road and traffic control systems (RWIS - road weather information station)
- Weather stations at airports (AWOS)
- Weather stations of meteorological services
- Mountain weather stations for avalanche and flood warning
- Hydro-meteorological stations(flood warning, stormwater, ...etc.)
- Agricultural Meteorology Stations
- Building Automation
Product Variants:
Due to country-specific requirements for the radar technology of the WS100, the precipitation sensor is available in two product variants:
- Radar Precipitation Sensor WS100 - Europe version (Article no. 8367.U03)
- Radar Precipitation Sensor WS100 - USA, Canada version (Article no. 8367.U04)
Technical Data
- General :
- Dimensions : Ø150 mm (5.9 in), height: 190 mm (7.48 in)
- Weight : ~0.6 kg
- Electrical parameters :
- Power supply : 10...28 VDC
- Power consumption without heating : 1 VA / 0.4 VA (low power mode)
- Heating power : 9 VA
- Operating parameters :
- Operat. temp. range : -40...60 °C
- Operat. humidity range : 0...100 %
- Protection class : IP66
- Survival wind speed : 75 m/s
- Data Transfer :
- Interfaces/ protocols : RS-485 semi-duplex two-wire, SDI-12, pulse interface / UMB protocol, Modbus
- (Pluggable) cable length : 10 m
- Transmission frequency : 24 GHz
- Precipitation :
- Measurement surface : 9 cm²
- Precipitation types : Rain, snow, sleet, freezing rain, hail; No precipitation (SYNOP 4677)
- Principle : Doppler radar
- Accuracy : ±10 %* : Under laboratory conditions by means of Lufft test system: Reference drop simulator with 2.8 mm drop diameter and adjustable intensity between 10 and 200 mm/h.
- Resolution liquid preciptiation : 0.01 / 0 .1 / 0.2 / 0.5 / 1.0 mm (pulse interface)
- Measurement Ranges :
- Droplet size : 0.3...5.0 mm
- DSD : 11 drop size classes with bandwidth of 0.5 mm
- Precipitation intensity : 0.01...200 mm/h / 0...7.874 inch/h
- Particle velocity : 0.9...15.5 m/s
- Solid precipitation : 5.1...~30 mm
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