• Compactweatherstationformeasurementof
windspeedandwinddirection(2Dultrasonic)
orairpressure,temperatureandrelativehu-
midity
• RS485interface
• MODBUScommunicationprotocol
Lufft Weather Station (WS200- / WS300-UMB)
Description
The Lufft compact weather stations with Universal Measurement Bus (UMB) are designed for recording environmental
data. The WS series provides a comprehensive range of environmental sensors for recording wind speed and wind
direction as well as air pressure, temperature, relative humidity and precipitation. The compact weather stations in
particular are outstanding due to their unrivaled price-performance ratio. The top-of-the-range model, WS600-UMB,
incorporates sensors for temperature, humidity, precipitation, air pressure, wind direction and wind speed.
Wind data is measured by 2D ultrasonic. The measurement principle for temperature is NTC, air pressure and relative
humidity are measured capactive.
The electrical connection for all UMB compact weather stations is made via a standard plug connector system. This
keeps installation and service costs to a minimum. All UMB compact weather stations can be polled by means of a
standard protocol. Once data polling has been incorporated for one sensor, additional sensors can be added by easy
parameterization of the data polling system.
Channel-oriented sensor data polling delivers a large number of computed variables in metric and US format, hence
there is no need for conversion by the user. Sensors can be congured, equipment tested and rmware updated with
the free conguration software (UMBCong-Tool).
Overview Lufft Weather Stations
WS200-UMB WS300-UMB WS500-UMB WS600-UMB
Wind speed x x x
Wind direction x x x
Temperature x x x
Air pressure x x x
Rel. humidity x x x
Precipitation type x
Precipitation intensity x
Rain accumulation x
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Lufft Weather Station (WS200- / WS300-UMB)
Specications
WS200-UMB WS300-UMB
Order-No. S85800H S55300
Wind
Measurement principle Ultrasonic -
Wind speed range 0 ... 75 m/s -
Wind speed accuracy ±0.3 m/s or 3% (0 ... 35 m/s) RMS of
reading, which is greater ±5% (>35 m/s)
-
Wind direction range 0 ... 359.9° -
Wind direction accuracy < 3° RMSE > 1.0 m/s -
Air pressure
Measurement range - 300 .. 1200 hPa
Accuracy - ±0.5hPa (0 ... 40°C)
Temperature
Measurement range - -50 ... 60°C
Accuracy - ±0.2°C (-20 ... 50°C), otherwise ±0.5°C
Rel. humidity
Measurement range - 0 ... 100% RH
Accuracy - ±2% RH
General information
Power supply 12-24 V DC ±10%
Heating 20 VA @ 24 V DC
Interface RS485, 2-wire, half-duplex (MODBUS communication protocol)
Connection 8-pole screw connector
Operating temperature range -50 ... 60°C
Operating humidity range 0 ... 100% RH
Dimension / Weight Ø 150mm, height: 194mm / 0.8kg Ø 150mm, height: 223mm / 1.0kg
Protection type housing IP66
Cable length 10m (contact us for other cable length)
Accessories RS485 module for data logger Meteo-40 (Order-No: M83551)
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Operating Manual Compact Weather Station
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 47
Figure 21: WS200-UMB
Figure 2
2: WS300-UMB
1
3.2 Drawings
Operating Manual Compact Weather Station
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 47
Figure 21: WS200-UMB
Figure 2
2: WS300-UMB
1
3.2 Drawings
Dimensional Drawing