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WS310-UMB Smart Weather Sensor

Make:  Lufft                                         Model: WS310 UMB
✅ Compact all-in-one weather sensor, low power, heater, aspirated radiation shield, maintenance-free operation, open communication protocol.
✅ Measurand : Temperature, Relative humidity, Air pressure, Solar radiation.
✅ Sensor Type : Compact weather station
✅ Signal Output : RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12.
✅ Supplied With : 10 Meter standerd cable, Factory test/ Calibration certificate
✅ Article number : 8374.U13
                             

WS310-UMB Smart Weather Sensor:

From the WS product family of professional intelligent measurement transducers with digital interfaces for environmental applications. integrated design with ventilated radiation protection for measuring: Air temperature, Relative humidity, Air pressure, and Radiation. It is possible to connect one external temperature or rain sensor.

Air Temperature and Humidity: Temperature is measured by way of a highly accurate NTC resistor, while humidity is measured using a capacitive humidity sensor. In order to keep the effects of external influences (e.g., solar radiation) as low as possible, these sensors are located in a ventilated housing with radiation protection. In contrast to conventional, non-ventilated sensors, this allows significantly more accurate measurement during high radiation conditions. Air temperature values with reduced accuracy are available as service channels for additional information. Additional variables such as dewpoint, absolute humidity, and mixing ratio are calculated from air temperature and relative humidity, taking account of air pressure.

Air Pressure: Absolute air pressure is measured by way of a built-in sensor (MEMS). The relative air pressure referenced to sea level is calculated using the barometric formula with the aid of the local altitude, which is user-configurable on the equipment.

Global Radiation: Global radiation is measured by a pyranometer mounted on the top cover of the Smart Weather Sensor.

Application And features of WS310-UMB Smart Weather Sensor:

Application

Features

✅ PV-Monitoring / Solar Monitoring on photovoltaic farms
✅ Hydro-meteorological stations
✅ Meteorological reference stations
✅ Integration into various other systems and solutions where these measurement parameters are needed.
✅ All-in-one housing design for a compact weather sensor that combines multiple measurement parameters in a single housing with only one cable connection.
✅ The first and only compact weather sensor with an integrated Kipp & Zonen CMP10 pyranometer and secondary quality standards.
✅ 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 and also for solar-powered automatic meteorological stations.
✅ WMO-recommended ventilation temperature and humidity measurement.
✅ Integrated heater that can be switched on if there is danger of frost.
Make

Lufft

Model

WS310-UMB

Dimension

Ø approx. 150 mm, height approx. 332 mm

Weight (Mass)

Approx. 1.5 kg

Interface

RS485, 2-wire, half-duplex

Power Supply

11 …. 32 VDC, 5…11 VDC (electronics with limited precision of measurements), 24 VDC +/- 10% (heater).

Power Consumption

40 VA (heater)

Operating Environment

Operating Temperature: -50…60°C (with heater), Operating Rel. Humidity: 0…100% RH

Cable Length

10m

Protection Level

IP66

Mast diameter

60 – 76 mm

Solar Radiation

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

Air Temperature

Principle : NTC
Measuring range : -40 … 80 °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)

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