WS303-UMB Smart Weather Sensor - discontinued
Compact all-in-one weather sensor for measurement of temperature, relative humidity, radiation and air pressure.
DISCONTINUED
DISCONTINUED
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.
IMPORTANT: WS303-UMB Smart Weather Sensor is discontinued
- 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, aspirated radiation shield, maintenance-free operation, open communication protocol
- RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12
WS303-UMB Smart Weather Sensor is discontinued
Please check the alternative: WS503
Advantages of the Smart Weather Sensor WS303
- 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
Examples of use of the Smart Weather Sensor WS303
The robust and maintenance-free smart weather sensor WS303 is designed for professional meteorological applications in all climate zones. It delivers reliable data, even in extreme ambient conditions.
Examples of use:
- PV-Monitoring / Solar Monitoring on photovoltaic farms
- Hydro-meteorological stations
- Meteorological reference stations
- Integration into various other systems/solutions, where these measurement parameters are needed...
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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 |
| Power supply | 5…11 VDC (electronics with limited precision of measurements) |
| Power supply | 24 VDC +/- 10% (heater) |
| Power consumption | 40 VA (heater) |
| Operating temperature | -50...60°C (with heater) |
| Operating rel. humidity | 0...100% RH |
| 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) |