Wind Speed and Direction

Ultrasonic Anemometer 2D

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Imagen de: Ultrasonic Anemometer 2D

The ultrasonic measurement principle allows, compared to the classic anemometers, an inertia-free measurement of running variable dimensions with highest precision and accuracy. It is especially suitable for the measurement of gust- and peak values.
The measurement values can be transmitted digitally and/or in analogue form.
The serial or analogue output of the data is carried out alternatively as instantaneous value or with selectable time frame.
If necessary, the sensor arms are automatically heated in case of critical ambient emperatures. The possibility of malfunction, caused by icing, is minimized.
Model no. 4.3820.3x.xxx, thanks to the additionally installed ultrasonic converter heating, is suitable even for the more difficult use in locations where frequently icing is to be expected

Specification

Part number: 4.382x.4x.xxx

4.3820.xx.xxx
Wind speed
Measuring range
0 … 85 m/s
Resolution
0.1 m/s (standard)
0.01 m/s (user defined)
Accuracy
±0.1 m/s rms ( < 5 m/s )
±2 % rms ( 5 … 85 m/s )
Wind direction
Measuring range
0 … 360 °
Resolution
1 °
1 ° (standard)
< 1 ° (user defined)
Accuracy
±1 ° @ WS 1 … 60 m/s
±2 ° @ WS 60 … 85 m/s
Virtual temp.
Measuring range
-50 … +80 °C
Resolution
0.1 K
Accuracy
±0.5 K @ WS < 35 m/s
Data output digital
Interface
RS485 / RS422
Baudrate
1200 … 921600 Baud
Data values
instant. values, average values, standard deviation
Output range
1 per 10 msec up to
1 per 60 sec
Status signals
heating, Meas section error, Temperature of meas section
Data output analog
Wind speed
0 … 20 mA
4 … 20 mA
0 … 10 V
2 … 10 V
Stromausgang
max. 400 Ω
Wind direction
0 … 20 mA
4 … 20 mA
0 … 10 V
2 … 10 V
Voltage output
min. 4000 Ω
Resolution
16 bit
Data input analog (alternative)
Chanels
3
Resolution
16bit
Operating voltage
Electronic
8 … 78 V DC or
12 … 55 V AC / 2.5 W
Heating
48 V AC/DC, typ 280 W
General
Bus operation
up to 98 sensors
Electr. connection
8 pol. connector
Mounting
on a mast tube 1,5“
Housing
stainless steel (V4A) AiSi316Ti
Protection
IP 67
Dimension
Ø 424 mm x 287 mm
Weight
2.5 kg
Imagen de Ultrasonic Anemometer 2D

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