Lufft – WS401 – Værstasjon WS401

Modell: WS401


Varenummer: 4609 Kategorier: ,
Bjørn Cato Solli 2

Bjørn Cato Solli

Luft og miljø
911 95 598

WS401-UMB Smart Weather Sensor for measuring of air temperature, relative humidity, precipitation 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. Optionally, the WS401-UMB can be equipped with a leaf wetness sensor in addition. Precipitation is measured by tipping spoon and tipping bucket processes. The flexible tipping bucket allows a 0.2mm or a 0.5mm resolution of the rainfall. Measurement output can be accessed by the following protocolls: UMB-Binary, UMB-ASCII, SDI-12, MODBUS. One external temperature sensor is connectable.

Special features

  • Aspirated temperature/humidity measurement
  • Open communication protocol:
  • UMB-Binary
  • SDI-12
  • Analoge outputs in combination with 8160.UDAC
Principle NTC
Measuring Range -50…60°C
Accuracy ±0,2°C (-20°C… 50°C), otherwise ±0.5°C (>-30°C)
Relative Humidity
Principle Capacitive
Measuring Range 0…100% RH
Accuracy ±2% RH
Resolution 0.2mm / 0.5mm
Accuracy ±2%
Air pressure
Principle MEMS Capacitive
Measuring range 300…1200hPa
Accuracy /- 0.5 hPa (0… 40°C)
General Information
Protection type housing IP66
Interface RS485, 2-wire, half-duplex
Operating Power Consumption 12-24 VDC ±10% <4VA (without heating)
Operating Humidity Range 0…100%
Operating Temperature Range -50…60%°C

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