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Thies First Class Advanced Anemometer

The Thies First Class Advanced (FCA) Anemometer is a class 1 anemometer that delivers high-end performance in any terrain.

  • Thies First Class Advanced Anemometer

Configuration Options

The Thies FCA Anemometer is ideally suited for wind resource assessment and power performance studies at IEC 61400-12-1 Class A and B sites.

The Thies FCA Anemometer comes with a MEASNET calibration certificate, and it is compatible with all Symphonie series data loggers. You will need to use Signal Conditioning Modules (SCM #3151) when connecting more than six anemometers to a SymphoniePLUS®3 Data Logger, but no interface module is required when connecting to a SymphoniePRO® Data Logger - Wind. These sensors can also be integrated seamlessly with our .

Use the Thies Adapter boom extension (#9344) to mount Thies First Class Advanced Anemometers on any 25 mm (.98”) diameter vertical pipe, such as NRG boom #4478 or any boom already fitted with a WindSensor Adapter Kit.

  • Class 0.5 anemometer
  • Optimised dynamic behavior even at high turbulence intensity
  • Minimum over-speeding
  • Excellent linearity: r > .99999
  • Low power consumption
  • High Survival Speed
  • Symmetrical geometry
  • MEASNET Calibrated
  MEASNET Calibrated (#9288)
Sensor type 3-cup anemometer, model 4.3351.10.000
  • Wind resource assessment
  • Meteorological studies
  • Environmental monitoring
Sensor range 0.3 m/s to 75 m/s (0.7 mph to 168 mph)
Instrument compatibility
  • All NRG Data Loggers
Output signal  
Signal type Form: Square Wave
Frequency: 1082 Hz @ 50 m/s (112 mph)
Amplitude: Equal to supply voltage, max. 15 V
Anemometer Transfer Function Refer to individual calibration report for sensor-specific transfer function.
Typical transfer function between frequency and wind speed:
  • y = 0.0462f + 0.21
Recommended load resistance R > 1 kΩ (Push-pull output with 220 Ω in series)
C < nF (corresponds to typical cable length < 1 km)
Calibration Each anemometer individually calibrated, calibration reports provided via electronic download
  • Nonlinearity < 1%
Resolution 0.05 m wind run
Uncertainty IEC 61400-12-1 Classification
  • Class 0.9A
  • Class 3.0B
  • Class 0.5S
Response characteristics  
Threshold < 0.3 m/s (0.7 mph)
Distance constant (63% recovery) < 3m (9.8ft) (according to ASTM D 5096 - 96)
Moment of inertia 3.41 x 10-4 kg-m2
Power requirements  
Supply voltage 3.3 VDC to 42 VDC (galvanic isolation from housing)
Supply current 0.3 mA @ 3.3 V typical (w/o external load)
(Less than 0.5 mA @ 5 V (w/o external load))
Mounting Onto a 35 mm (1.38 inch) diameter mast with two set screws
Tools required 3 mm Allen wrench
Operating temperature range -50 °C to 80 °C (-58 °F to 176 °F)
Operating humidity range
  • 0 to 100% RH
  • Including dew moistening
Connections 8 pole plug-connection for shielded cable
Weight 0.5 kg (1.1 lbs)
  • 3 cups of conical cross-section
  • 240 mm (9.45") rotor dia.
  • 290 mm (11.42") overall height
Cups Carbon-fiber reinforced plastic
Body Anodized aluminum
Shaft Anodized aluminum
Bearing Stainless steel ball bearing
Symphonie® SCM Card

Symphonie® SCM Card

Condition your sensor’s output signal so that a SymphoniePLUS3 Data Logger can read it by installing a Symphonie Signal Conditioning Module (SCM).

Thies Cable

Thies Cable

Use these cables with Thies First Class Advanced Anemometers.