NRG Systems

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.

  MEASNET Calibrated (#9288)
Description  
Sensor type 3-cup anemometer, model 4.3351.10.000
Applications
  • 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))
Installation  
Mounting Onto a 35 mm (1.38 inch) diameter mast with two set screws
Tools required 3 mm Allen wrench
Environmental  
Operating temperature range -50 °C to 80 °C (-58 °F to 176 °F)
Operating humidity range
  • 0 to 100% RH
  • Including dew moistening
Physical  
Connections 8 pole plug-connection for shielded cable
Weight 0.5 kg (1.1 lbs)
Dimensions
  • 3 cups of conical cross-section
  • 240 mm (9.45") rotor dia.
  • 290 mm (11.42") overall height
Materials  
Cups Carbon-fiber reinforced plastic
Body Anodized aluminum
Shaft Anodized aluminum
Bearing Stainless steel ball bearing

NRG Systems • 110 Riggs Road • Hinesburg, Vermont 05461 • +1 802-482-2255 • info@nrgsystems.com