This heated variant of the WindObserver anemometer has been designed to remain ice free in most freezing weather conditions. With exceptionally high heating power and the ability to measure wind speeds up to 75 m/s (0-168mph) this heated anemometer is ideal for use in extreme conditions where performance and high reliability are paramount.
 With 150 Watts of electrical heating producing 1 Watt/cm², and tested in accordance with MILSTD810F, this heated anemometer is particularly suited to operate as part of wind turbine control systems which are exposed to extreme weather conditions. Manufactured from stainless steel with no moving parts, this WindObserver is ideal for replacing mechanical anemometers, which require regular maintenance and calibration, reducing down time and maintenance costs.
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The Extreme Weather WindObserver heated anemometer gives an output status indicating the validity of data, so that you can be confident that the instrument is providing true data. The Windows™ based WindCom communications package allows the user to configure the anemometer in various modes from a PC. Communication in operation is via RS422/RS485 bidirectional link, which allows several units to be networked together and data logged on demand.
Experience gained in the field has been translated into laboratory conditions where the instrument has been rigorously tested against internationally recognised standards and meets the stringent performance criteria specified by wind turbine manufacturers, airports, marine, oil and gas production, and meteorological organisations around the world.
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- Features
- Specifications
- Documentation
- Anemometer Range
- 2-axis heated anemometer providing wind speed and direction data
- 0-75m/s wind speed
- 0-359º wind direction range (no dead band)
- Heating Power 7A @ 24VAC or DC (1W/cm²)
- Speed accuracy for turbine control ±1% within ±25º of datum
- Direction accuracy for turbine control ±1% within ±25º of datum
- Calibration traceable to NAMAS standards
- Free data logging software
- Robust stainless-steel casing
- Pipe mount as standard, other options available
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| Wind Speed |
| Range |
0-75m/s |
| Starting Threshold |
0.01m/s |
| Accuracy |
±2% @ 12m/s (1% for turbine control) |
| Resolution |
0.01m/s |
| Offset |
±0.01m/s |
| Wind Direction |
| Range |
0-359º (no dead band) |
| Accuracy |
±2% @ 12m/s (1% for turbine control) |
| Resolution |
1º |
| Measurement |
| Ultrasonic Output Rate |
1-4 Hz |
| Parameters |
UV, Polar, NMEA |
| Units |
m/s, knots, mph, kph, ft/min |
| Averaging |
Flexible 1-3600 seconds |
| Power Requirement |
| Anemometer only |
20-30VDC (60mA max, 50mA average) |
| Heating |
Max 7A @ 24V AC or DC |
| Digital Output |
| Communication |
RS422 / RS485 full duplex / half duplex |
| Baud Rates |
1200, 2400, 4800, 9600, 19200, 38400 |
| Formats |
8 bit data; odd; even or no parity |
| Anemometer Status |
Supplied as part of standard message |
| Mechanical |
| External Construction |
316 Stainless Steel |
| Size |
431mm x 213mm |
| Weight |
1.6kg (without cable) |
| Environmental |
| Protection Class |
IP66 (NEMA4X) |
| Humidity |
<0% to 100% RH |
| Operating Temperature |
-55ºC to +70ºC |
| Precipitation |
300mm/hr |
| EMC |
EN 61326-1: 2006, EN 55011: 2007 |
| Icing |
MILSTD810F Method 521.1 Procedure 1 |
| Approvals |
| Standards |
Traceable to NAMAS standards |
| Site Calibration |
None required. Optional Integrity Check Unit (zero wind) |
Heated Anemometer Product Literature
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Anemometer Range Information
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Software
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+44 (0)1590 613500 
anem@gill.co.uk
Extreme Weather WindObserver Heated Anemometer
