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WS100 Radar Precipitation Sensor / Smart Disdrometer

WS100 Radar Precipitation Sensor / Smart Disdrometer



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Description

WS100 Radar Precipitation Sensor / Smart Disdrometer

Absolutely maintenance-free and extremely fast measurement of precipitation type (Rain, snow, sleet, freezing rain, hail) and intensity, thanks to radar measurement technology. The smart radar rain sensor & present weather detector.

The Lufft WS100 is our rain sensor with radar technology and adjustable heating. Using a 24-GHz Doppler radar, it measures the speed of all forms of condensed water. These include 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 rain gauge measures rain almost anywhere in the world.


Feature

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

Spesification

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