At FT Technologies, we recognise that meteorological measurement requires anemometers designed to withstand the harshest environmental conditions, delivering accurate and consistent data with low power usage.
Using the knowledge that we have gained as a leading supplier to the world’s top wind turbine manufacturers, FT Technologies has introduced the new FT742-DM
anemometers. With a wind speed range of 0-75m/s, they are specifically designed for use in meteorological applications and meet the World Meteorological Organisation's standards for wind sensors.
FT anemometers have been used in meteorological applications all over the world including at both poles. Customers have used FT sensors in weather stations, hurricane research, glacial research, cold climate weather monitoring, oceanographic research, environmental monitoring solutions for fire weather, maritime weather monitoring and avalanche risk detection. Read our Case Studies
Recommended Products: FT742-DM / FT742-SM
The FT742-DM mounts directly onto a 33.7mm pipe and can be supplied with either RS485 or Analogue 4-20mA output. The FT742-SM has a built-in compass and is designed to be integrated into your own equipment. All FT sensors can be specified at time of order to output data in m/s, km/h or knots.
Mobile, compact, lightweight
The FT742-DM anemometer is small, only 161mm high, and weighs only 380g. This makes it extremely mobile. The sensor can be supplied with either RS485 or Analogue 4-20mA output, and can be specified to output data in m/s, km/h or knots.
Rugged and shock-resistant
With no moving parts to degrade or damage, and being resistant to shock and vibration, the FT742-DM performs well even if roughly handled or thrown around.
The FT742-DM is fitted with a thermostatically controlled heating system. The sensor maintains its temperature at a user specified heater set point of between 0° and 55°C. Three software controlled heaters are used to distribute heat intelligently over the entire sensor.
The FT742-DM is very low on power usage. With the heaters switched off the FT742 draws only 30mA at 24 volts DC. However it can also run at 12 volts making it ideal for use with batteries.
At voltages below 11V the sensor continues to operate but the heaters are automatically disabled. This means that in areas subject to icing a voltage based control system can be designed to switch on the heaters by raising the voltage above 11V – this enables the heaters and then they will operate at the chosen heater set point. Maximum current draw can be left at the default of 4A or set to a lower figure. This will reduce the drain on the batteries although it will of course limit the effectiveness of the heaters. Contact us for further advice on power and heater management strategies.
What makes FT wind sensors unique is that they are powered by our patented Acu-Res technology. Unlike standard ultrasonic sensors that measure time of flight, the FT742-DM resonates an acoustic wave within a small cavity to measure phase change. Acu-Res produces a signal to noise ratio more than 40db stronger than other ultrasonic technologies, making the FT sensors much less susceptible to interference.
The aluminium hard anodised body is highly resistant to corrosion, sand, dust, ice, solar radiation and bird attack. The sensor is sealed to IP67 standard and inherently compensates for changes in the air’s temperature, pressure or humidity.
We pride ourselves on the thoroughness of our engineering and the quality of our manufacturing processes and our products. All design and manufacture is carried out by our highly-skilled team in the UK. All of our sensors are 100% wind tunnel checked and calibrated before despatch. FT Technologies has an ISO 9001 certified Quality Assurance System and ISO 14001 certified Environmental Management System in place.