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WS303
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, radiation and air pressure. One external temperature or rain sensor is connectable.
- Temperature, relative humidity, radiation and air pressure
- NTC/T, Capacitive/RH, Tiltable Pyranometer Kipp&Zonen/Radiation, MEMS capacitive/Pressure
- Compact all-in-one weather sensor, low power, heater, aspirated radiation shield, maintenance-free operation, open communication protocol
- RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and optional SDI-12
- FEATURES
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- All-in-one housing concept of a compact weather sensor combining several measurement parameters in one housing with only one cable connection
- Integrated Kipp & Zonen CMP3 Pyranometer, which is tuiltable
- 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
- Ventilated temperature and humidity measurement according to WMO guidelines
- Integrated heater that can be switched on if there is danger of frost
- Specs
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General Technical data Dimensions Ø approx. 150mm, height approx. 392mm Weight Approx. 1.5kg Interface RS485, 2-wire, half-duplex Power supply 4…32 VDC Operating temperature -50…60°C Operating rel. humidity 0…100% RH Heating 20VA at 24VDC Protection level housing IP66 Cable length 10m Mast mounting suitable for mast diameter 60 – 76mm Radiation Response time (95%) < 18 s Non-stability (change/year) < 1 % Non-linearity (0 to 1,000W/m²) < 1 % Directional error (at 80° with 1,000W/m²) < 20 W/m² Temperature dependence of sensitivity < 5 % (–10… +40°C) Tilt error (at 1000W/m²) < 1 % Spectral range 300…2800 nm Measuring range 2000 W/m² Altitude 0…60° Azimuth -10°…10° 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) - Downloads
