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Phone:- (603) 726-7500Fax:- (603) 726-7502

Model A75-104 Sine Wave Anemometer

 

 

 

 

 

 

Model A75-104 Sine Wave Anemometer

Applications

  • Anemometer for wind resource assessment instrumentation
  • Research measurements in environmental studies
  • Engineering studies on wind effects on structures
  • Control anemometer for new or existing wind warning devices
Features
  • Completely self-powered with self-contained alternator.
  • Very simple, RoHS compliant, elegantly engineered construction
  • Dirt and water resistant, modified Teflon bearing system
  • All corrosion resistant materials
  • Rotor assembly molded in one piece for repeatable performance
  • Frequency output for ease of filtering and long cable runs
  • Professional qualities at a minimum price

Note: Calibration reports available at additional cost.

 

Specifications

Accuracy 11 - 55 MPH ± 0.2 MPH (Consensus Standard)
Threshold Starting Threshold 0.75 m/s (1.75 MPH)
  Cup Distance Constant (63% Recovery) 3.0 m (1.0 ft.)
Materials Rotor & Housing Body Single piece injection molded black polycarbonate (Lexan), Fully hardened berillium copper chafts, Self lubricating  teflon bearings
  Rated PV Factor of 20,000 At 15 MPH, PV is approximately 2,000
  Upper Bearing Centered in the plan of cup thrust for optimal loading
  Permanent Magnet Indox

1, 25mm (1in) diameter, 13mm (0.5in) long, 4 poles

Weight 0.1kb (0.21lb)
Dimensions 3 Cups Conical Cross-Section 51mm (2in) diameter
  Swept Diameter of Rotor 190mm (7.5in)
  Overall Height

51mm (3.2in)

  Moment of Inertia of Rotor Assembly 68 x 10-6S - ft2
Electrical Output Signal is a sign wave with frequency changing linearity with wind speed 60 Hz = 102 MPH
  Voltage 2.0 VAC @ 60 Cycles
  Transfer Function MPH = (Hz x 1.714) + 0.725
Environmental Operating Temperature -55 - 60 °C (-67 - 150 °F)   
  Operating Humidity Range 0 - 100% RH
  Gust Survival Speed 214 MPH
  Lifespan 3-5 years under normal conditions

 

 

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