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Lufft WS502-UMB intelligent weather sensor

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Lufft WS502-UMB intelligent weather sensor

-Working principle: Through ultrasound / wind, NTC / temperature, capacitance / relative humidity, MEMS capacitance / barometric pressure, lufft insolation intensity meter / radiation-Application industry: road, transportation system automatic weather station photovoltaic, solar hydrology building automation airport, The docks and ports are integrated into various systems and solutions that require environmental data-Instrument characteristics: an integrated meteorological sensor capable of measuring 6 elements, only one cable can be connected to the device; built-in data preprocessing, universal Interface and optional output protocol; open communication protocol and other advantages; maintenance-free operation; suitable for all
Technical indicators
- working principle:
Through ultrasonic / wind, NTC / temperature, capacitive / relative humidity, MEMS capacitive / barometric pressure, lufft solar intensity meter / radiation
-Application industry:
Road, traffic system
Automatic weather station
Photovoltaic, solar
Building automation
Airport, terminal, port
Integration into various systems and solutions that require environmental data
-Instrument features:
An integrated weather sensor capable of measuring 6 elements, which can be connected to the device with only one cable;
Built-in data preprocessing, universal interface and selectable output protocol;
Open communication protocol and other advantages;
Maintenance-free operation;
Applicable to all climatic zones, and also to solar automatic weather stations;
Observe WMO rules, measure temperature, humidity and wind
If there is frost, you can turn on the integrated heater
Technical index
Measurement parameters Temperature, relative humidity, air pressure, wind direction, wind speed, radiation
Technical Parameters specification Ø about 150 mm, height 317 mm
weight 1.5 kg
Data interface RS485, 2 core half duplex
Operating Voltage 4...32 VDC
Operating temperature -50...60°C
Working humidity 0...100% RH
heating power 40 VA at 24 VDC
Protection level IP66
Install the mast Mast diameter 60-76 mm
radiation unit W/m²
Accuracy 5%
Response time (95%) < 1 s
Annual instability ±1 %
Non-linear (0 to 1,000W / m²) ±1 %
Directivity error (1,000W / m² at 80 °) ±20 W/m²
Sensitivity related to temperature ± 5 % (-10... +40 °C)
Tilt error (at 1000W / m²) ± 1 %
Spectral range 300…1100 nm
Measuring range 1400 W/m²
temperature principle NTC negative temperature coefficient thermistor
Range -50...60 °C
unit °C
Accuracy ± 0.2 ° C (-20 ... 50 ° C), otherwise ± 0.5 ° C (> -30 ° C)
Relative humidity principle capacitance
Range 0 ... 100 % RH
unit % RH
Accuracy ±2 % RH
Air pressure principle MEMS capacitor
Range 300 ... 1200 hPa
unit hPa
Accuracy ±0.5 hPa (0...40 °C)
wind direction principle Ultrasound
Range 0 ... 359.9 °
unit °
Accuracy < 3° RMSE > 1.0 m/s
Wind speed principle Ultrasound
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 0.1m/s


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heating power

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