ACOUSTIC RESONANCE WIND SENSOR DESIGNED FOR TURBINE CONTRO FT TECHNOLOGIES The FT742 Flat Front wind sensor is widely used in the wind turbine business, both on and offshore. It can measure wind speeds up to 75m/s making it suitable for use in the stormiest areas of the world. Designed for installation against a metal bar, the sensor is easily aligned to the central axis of the turbine without error. The thermostatically controlled heating system prevents ice build-up, not only on the sensor itself, but also on the metal bar. This prevents blockage of the measurement cavity, reducing turbine downtime during heavy icing events. The hard anodised aluminium body is highly resistant to corrosion, sand, dust, ice and solar radiation. The sensor is sealed to IP66, IP67 and IPX6K standard and inherently compensates for changes in the air's temperature, pressure and humidity. C. Top of mounting flat to cavity centre. D. Mounting flat height E. Bottom of mounting flat to hole centre. F. Centre of mounting flat to hole centre. SPECIFICATIONS AT A GLANCE [.[ WIND SPEED WEIGHT AVAILABILITY THE WORLD’S TOUGHEST WIND SENSORS

WIND SPEED WIND DIRECTION Accuracy (within ±10° datum). .. Accuracy (outside ±10° datum). ACOUSTIC TEMPERATURE* Under the following conditions: Temperature Difference. . ,.<10°C between the air temperature and the actual temperature of the sensor *Available on digital sensors only SENSOR PERFORMANCE Measurement principle. Temperature range. Ingress protection. Heater settings .Acoustic Resonance (automatically compensates for variations in temperature, pressure & .Metres per second, kilometres per hour or knots .0° to 55°C. The heater set point can be configured POWER REQUIREMENTS Supply voltage....