Senseca AEOLUS-3 3-Axis Ultrasonic Anemometer

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Description

The Senseca AEOLUS-3 is a 3-axis ultrasonic anemometer designed for precise wind monitoring under a wide range of environmental conditions. It is particularly suitable for wind farm monitoring, Automatic Weather Stations (AWS), monitoring of buildings, structures and bridges, ports, airports, heliports, and road and railway tunnels.

In addition to wind speed and direction, the AEOLUS-3 measures the U-V-W Cartesian wind components and Wind Gust values. Its three-axis measurement principle enables simultaneous monitoring of both horizontal and vertical components of airflow.

The instrument features an integrated heating system that protects the entire detection area, including the sensors, arms, and arm supports, against snow accumulation and ice formation. This supports accurate and reliable measurements even under demanding winter and severe weather conditions.

The housing is manufactured from AISI 316 stainless steel, providing high corrosion resistance and mechanical durability for use in harsh outdoor and industrial environments.

The AEOLUS-3 also integrates a barometric pressure sensor, allowing additional monitoring of atmospheric conditions.

For integration with monitoring and automation systems, the instrument provides isolated RS232, RS485, and RS422 outputs supporting NMEA, Modbus-RTU, and proprietary ASCII communication protocols. An isolated SDI-12 output is also available.

The anemometer provides three analog outputs, which can be used for wind speed and direction or for the U-V-W Cartesian wind components, depending on the selected model and configuration.

The AEOLUS-3 complies with the requirements of the following standards:

MIL-STD-810G Method 509.6 and EN ISO 9227:2017 – salt fog and corrosion resistance testing;
MIL-STD-810F Method 521.2 – anti-icing and freezing rain testing;
EN 60068-2-6:2008 / IEC 60068-2-6:2007 – vibration resistance testing.

The instrument is supplied with PC software for configuration and real-time display of measurement data.

All sensors integrated into the AEOLUS-3 are factory calibrated and do not require additional calibration intervention by the user before operation.

For more information:
AEOLUS-3 – 3-Axis Ultrasonic Anemometer

Specifications

Parameter	Value
Wind Speed Measurement – Principle	Ultrasonic
Wind Speed Measuring Range	0–85 m/s
Wind Speed Resolution	0.01 m/s
Wind Speed Accuracy	±0.2 m/s or ±2% of reading, whichever is greater, from 0–65 m/s; ±3% of reading above 65 m/s
Wind Direction Measurement – Principle	Ultrasonic
Azimuth Range	0–360°
Elevation Range	±60°
Wind Direction Resolution	0.1°
Wind Direction Accuracy	±2° RMSE for wind speeds from 2 to 65 m/s; ±3° RMSE above 65 m/s
Sonic Temperature – Principle	Calculated quantity
Sonic Temperature Range	-40 to +60 °C
Sonic Temperature Resolution	0.1 °C
Sonic Temperature Accuracy	±1 °C
Barometric Pressure Sensor	Piezoresistive
Barometric Pressure Range	300–1100 hPa
Barometric Pressure Resolution	0.1 hPa
Barometric Pressure Accuracy	±0.5 hPa from 700–1100 hPa at 20 °C; ±1 hPa from 500–1100 hPa; ±1.5 hPa from 300–500 hPa at T = 0–60 °C
Tilt Angle Resolution	0.05°
Tilt Angle Accuracy	±1°
Instrument Supply Voltage	12–30 V DC; 15–30 V DC for 0–10 V analog output
Instrument Power Consumption	< 8 W
Heater Supply Voltage	24 V DC ±10%
Heater Power	105 W
Serial Communication Interfaces	Galvanically isolated RS232, RS485, RS422, and SDI-12
Communication Protocols	NMEA, MODBUS-RTU, SDI-12, proprietary ASCII protocol
Analog Outputs	3 galvanically isolated analog outputs for wind speed and direction or U-V-W Cartesian components
Analog Output Types	0/4–20 mA, 0–1 V, 0–5 V, or 0–10 V, depending on model
Maximum Load Resistance – Current Output	500 Ω
Minimum Input Resistance – Voltage Output	10 kΩ
Analog Output Update Rate	4 Hz
Measurement Rate	1–4 measurements/s
Wind Speed Averaging Interval	Configurable from 1 s to 10 min
Wind Gust Calculation Interval	Configurable from 1 s to 10 min
Electrical Connection	19-pole M23 male connector
Operating Temperature Range	-40 to +70 °C
Protection Rating	IP67 according to EN 60529
Corrosion Resistance Test	MIL-STD-810G Method 509.6 – 48 h exposure + 48 h drying; EN ISO 9227:2017
Anti-Icing / Freezing Rain Test	MIL-STD-810F Method 521.2
Vibration Resistance Test	EN 60068-2-6:2008; IEC 60068-2-6:2007
Maximum Wind Speed Without Damage	100 m/s
Weight	Approx. 2.6 kg
Housing Material	AISI 316 stainless steel
Mast Installation	For mast with Ø40 mm outer diameter and Ø36 mm inner diameter