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WS304
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 Lufft/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
- Tuiltable pyranometer as part of the sensor unit
- 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 Dimensions Ø approx. 150 mm, Height approx. 377 mm Weight Approx. 1.5 kg Interface RS485, 2 – wire, half – duplex Power supply 4…32 VDC Operating temperature -50…60°C Operating rel. humidity 0…100 % RH Heating 20 VA at 24 VDC Cable length 10 m Protection level housing IP66 Mast mounting suitable for Mast diameter 60 – 76 mm Radiation Unit W/m² Accuracy 5 % Response time (95%) < 1 s Non-stability(change/year) ±1 % Non-linearity (0 to 1000 W/m²) ±1 % Directional error (at 80° with 1000 W/m²) ±20 W/m² Temperature dependence of sensitivity ±5 % (-10 to +40°C) Tilt error (at 1000 W/m²) ±1 % Spectral range 300…1100 nm Measuring range 1400 W/m² 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
