DNB105.2 is 2-axes ultrasonic (MTI.AWS.LS.105.2) anemometer for measuring wind speed and wind direction. It is ideal for general meteorological applications requiring high wind speed range, no moving parts for lowmaintenance or measurements with fast response even in very low-range wind speed conditions. Sensor is equipped with compass and the Tilt angles detection system (inclination), to determine the spatial orientation of the anemometer at any time. This allows it to be installed even on mobile vehicles (boats, mobile environmental monitoring vehicles, etc.) It has two 4÷20 mA analog outputs, one for wind speed and one for wind direction, and one RS485 serial output with Modbus-RTU protocol. The anemometer can be connected to LSI LASTEM acquisition systems, or any other device using such kind of input.
DNB105.2 Ultrasonic
WIND SPEED
• Principle:Ultrasounds
• Measuring range: 0÷85 m/s
• Resolution: 0.01 m/s
• Accuracy: ± 0.2 m/s or ± 2%, the greatest (0÷60 m/s), ± 3% (> 60 m/s)
WIND DIRECTION
• Principle: Ultrasounds
• Measuring range: 0÷359.9°
• Resolution: 0.1°
• Accuracy: ± 2° RMSE (wind speed > 2 m/s)
COMPASS & TILT ANGLE
• Resolution: 0.05°
• Accuracy: ± 1°
GENERAL FEATURES
• Power supply: 12÷30 Vdc
• Power consumption: 60 mA @ 24 Vdc
• Serial outputs: Isolated RS485
• Communication protocols: Modbus-RTU
• Analog outputs: 2 (wind speed and direction) x 4÷20 mA (max. load 500 Ω)
• Electrical connection: 19-pole M23 male connector
• Operating temperature: -40÷70 °C (without ice)
• Protection degree: IP 66
• Weight: 640 g approx.
• Housing: ASA with aluminum and AISI 316 metal parts
• Mounting: Mast ∅ 40 mm external and ∅ 36 mm internal
• Data logger compatibility: M-Log (ELO008), R-Log (ELR515), E-Log, A-Log (with ALIEM)