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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, precipitation intensity, precipitation type, precipitation quantity, solar radiation, lightning detection, air pressure, wind direction and wind speed. One external temperature sensor is connectable.
Temperature, relative humidity, air pressure, wind direction, wind speed, precipitation intensity, precipitation quantity, radiation, lightning strikes
Ultrasonic/Wind, NTC/T, Capacitive/RH/Pressure, Radar/Precipitation, radio wave emission/Lightning strikes
Wind detection with birdproof construction. First and only compact all-in-one weather sensor with lightning detection, 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 SDI-12
8381.U01, 8381.U01-NA
General |
|
| Dimensions | Ø approx. 150 mm, height approx. 317 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) |
| Operating temperature | -50…60°C (with heater) |
| Operating rel. humidity | 0…100% RH |
| Cable length | 10 m |
| Protection level housing | IP66 |
| Standards/Regulations | Compliant to IEC 61724-1:2017 Class C |
| Mast mounting suitable for | Mast diameter 60 – 76 mm |
Lightning detection |
|
| Lightning detection | Number of lightning events |
| Coverage area | 5 – 10 km |
Air 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) |
Wind direction |
|
| Principle | Ultrasonic |
| Measuring range | 0 … 359.9 ° |
| Unit | ° |
| Accuracy | < 3° RMSE > 1.0 m/s |
| Resolution | 0.1 |
Wind speed |
|
| Principle | Ultrasonic |
| Measuring range | 0…75 m/s |
| Unit | m/s |
| Accuracy | ±0.3 m/s or ±3 % (0…35 m/s) ±5 % (>35 m/s) RMS |
| Resolution | 0.1 |
Precipitation (liquid) |
|
| Droplet size | 0,3 … 5 mm |
| Detection sensitivity | 0,01 mm/h |
| Particle velocity | 0.9 … 15.5 m/s |
| Precipitation types | rain/ snow |
| Solid precipitation | 5.1 … ~30 mm |
| Intensity range | 0…200mm/h |
| Intensity resolution | 0.01 mm/h |
| Amount resolution | 0.1 mm |
| Accuracy | 20 % under laborary conditions |
| Reproducibility | Typical >90 % under laborary conditions |
Radiation |
|
| Unit | W/m² |
| Accuracy | 5% |
| Response time (95%) | < 1s |
| Spectral range | 300 to 1100 nm |
| Measuring range | 1400 W/m² |
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