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Wind Speed Sensors

Used to monitor wind speed, wind run and wind gust, ICT International's range of 'smart' digital wind speed sensors combine robust design with accuracy and a low starting threshold for sensitivity in a wide range of operating conditions.

The three conical aluminium anemometer cups have been developed to provide an approximately linear relationship between rotational speed and actual wind speed. An internal electronic gear box provides a digital change-of-state output as a measure of wind run. One pulse represents 10m of wind run. However, special orders can be supplied for progressions from 0.625 to 160m of wind run per pulse.

The AN2 is for applications where the emphasis is on sensitivity - they have a starting threshold of 0.2m/s.

Advanced functionality

ICT's "smart" anemometer range of sensors is designed for use with a variety of electromechanical and electronic counters or analogue data loggers.

All models incorporate an integrated 16-bit microprocessor capable of providing dual signal outputs, plus alarm and control outputs. When operated with an ICT Smart Logger, the anemometers offer true "plug and play" functionality without the need for programming.

The AN4 and AN5 models, offer even greater functionality as the sensor can also calculate the standard deviation over a preset period that can be set in the sensor. The standard deviation is then available as an independent output from the sensor and is available when used with either the Smart Logger or other analogue data loggers.

Model	Arms	Starting Threshold	Application Area	SD Channel
AN2	Long	0.2ms^-1	Standard	No

Applications	Features
Meteorology	Low starting threshold
Wind profiling	Multiple mounting options
Evaporation monitoring	High accuracy relative to cost
Crop studies and agronomy	Corrosion-resistant finish
Air pollution and plume monitoring	Low-friction bearings for long life
Wind speed alarms	Water-resistant design
Emergency services	Excellent dynamic characteristics
Building construction research	Optional 4-20mA current loop output

Windspeed conversion

Wind Speed Conversion Table
ms^-1	10.0	25.0	30.0	40.0	50.0	75.0	100.0
kmh^-1	36.0	90.0	108.0	144.0	180.0	270.0	360.0
mph	22.4	55.9	67.1	89.5	111.9	167.8	223.7
knots	19.4	48.9	58.3	77.8	97.1	145.7	194.4