< Back to Wind page

WindObserver II Ultrasonic Wind Sensor

DECREASED DOWN TIME AND SERVICE COSTS
CONTINUOUS OPERATION IN EXTREME WEATHER CONDITIONS
REDUCED SET UP AND INSTALLATION TIME

Features | Specifications | PDF

The WindObserver II provides the best solution on the market for reliable, accurate and cost-effective 2 axis wind measurement. It combines the latest patented advances in ultrasonic technology. The elimination of moving parts, together with a rugged stainless steel construction, means that WindObserver II is virtually maintenance free and requires no calibration on site. The optional heated head keeps the unit free from ice and snow, providing continuous use even in the most extreme weather conditions. A new flexible design ensures that the WindObserver II can be configured by the user to their exact requirements, which may include analog outputs, 10 Hz output or heating. The Windows based Anemcom II communications package allows the user to operate the anemometer in various modes, permitting the measurement of U & V vectors or wind speed and direction. Communication is via an RS422 bi-directional link, which allows several units to be networked together and data to be logged on demand. The WindObserver II is rigorously tested to internationally recognized standards and meets stringent performance criteria specified by meteorological, naval and airport authorities and oil and utility companies around the world.

Ultrasonic Wind Sensor Applications

• Meteorological
• Bridges
• Wind turbines
• Military
• Transport
• Marine
• Tunnels
• Aviation
• Motorways

Features

• Enhanced anti-icing design
• Analog outputs
• NMEA output
• User selectable output format
• 1, 2, 4, 5, 8 or 10 Hz output
• Sonic Temperature
• Communications software
• Calibration to national standards

Specifications

Measurement
Output: 1Hz, 2Hz, 4Hz, 5 Hz, 8 Hz, 10Hz
Parameters: UV, Polar, NMEA, Tunnel, Binary
Units: m/s, Knots, MPH, KPH ft/min
Averaging: Flexible 1-3600 seconds

Wind Speed
Range: 0 - 65 m/s (0-145 mph)
Accuracy: ±2% @ 12m/s
Accuracy of reading: % of reading
Resolution: 0.01m/s

Wind Direction
Range: 0 - 359°
Accuracy: ± 2°
Resolution: 1°

Sonic Temperature
Range: -40 °C to +70 °C
Anemometer Status: Supplied as part of standard message
Starting Threshold: 0.01m/s
Dead Band Wind Direction: None

Power Requirement
Anemometer only: 9-30 V DC (14mA @ 12V DC)
Heating (Optional): 3A @ 22-30V DC, 44-60V AC

Dimensions
Size: 405mm x 210mm
Weight: 1.5kg
Standards: Traceable to NAMAS standards
Digital Output Communication: RS422, full duplex, network facility
Baud rates: 1200, 2400, 4800, 9600, 19200, 38400
Formats: 8 data, odd, even or no parity

Analog Output (Optional)
Quantity: 3 (speed, direction, status or sonic temperature)
Scale: Multiples of ± 10 m/s up to ± 70 m/s
Type: ± 2.5V, 0-5V or 4-20mA
V output resistance: 60 ohms
4-20mA loading: < 300 ohms

Environmental
Moisture protection: IP66 (NEMA4X)
Operating Temperature: -55 °C to +70 °C
Humidity: 5% to 100% RH
Precipitation: 300mm/hr
EMC: BS EN 50081-1: 1992 (Emissions Class B)
BS EN 50082-2: 1997 (Immunity) FCC Class A
Icing: MILSTD810E Method 521.1 Procedure 1
Site Calibration: None Required

Materials
External Construction: Stainless Steel 316

You will need Adobe Acrobat Reader to view the Press Releases. Click here for a free download.

	Ultrasonic Wind Observer