WS310-UMB
From the Lufft WS product family of professional intelligent measurement transducers with digital interface for environmental applications.
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Key features
- All-in-one housing concept of a compact weather sensor combining several measurement parameters in one housing with only one cable connection
- First and only compact weather sensor with integrated Kipp & Zonen CMP10 Pyranometer with secondary standard quality
- Built-in data pre-processing, universal interfaces and selectable output protocols
- Maintenance-free operation – no moving parts that can wear out
- Compatible with many commercially available Met/HydroMet data loggers and PLS systems thanks to an open communication protocol
- 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
The WS310-UMB Smart Weather Sensor for measuring of air temperature, relative humidity, solar radiation and air pressure. Relative humidity is measured by means of a capacitive sensor element; a precision NTC measuring element is used to measure air temperature. The world renowned technology of Kipp & Zonen CMP10 is integrated. Measurement output can be accessed by the following protocols: UMB-Binary, UMB-ASCII, SDI-12, MODBUS. One external temperature or rain sensor is connectable.
Technical specification
| Dimensions | Ø approx. 150 mm, height approx. 332 mm |
| Weight | Approx. 1.5 kg |
| Interface | RS485, 2 - wire, half - duplex |
| Power supply | 11…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 |
| Cable length | 10 m |
| Protection level housing | IP66 |
| Mast mounting suitable for | Mast diameter 60 - 76 mm |
| Principle | NTC |
| Measuring range | -40 ... 80 °C |
| Unit | °C |
| Accuracy | ±0.2 °C (-20...50 °C), otherwise ±0.5 °C (>-30 °C) |
| Principle | Capacitive |
| Measuring range | 0 ... 100 % RH |
| Unit | % RH |
| Accuracy | ±2 % RH |
| Principle | MEMS capacitive |
| Measuring range | 300 ... 1200 hPa |
| Unit | hPa |
| Accuracy | ±0.5 hPa (0...40 °C) |
| Response time | < 5 s |
| Zero offset A | < 7 W/m² |
| Zero offset B | < 2 W/m² |
| Directional error (at 1000 W/m²) | < 0.2 % |
| Temperature dependence of sensitivity | < 1 % (-10 ºC...40 ºC) |
| Spectral range | 285 to 2,800 nm |
| Measuring range | 4000 W/m² |
