Vaisala

WA15

Wind set with cup anemometer and wind vane

WA15

A high-performance wind measurement set with an industry-standard track record in meteorological applications. It combines the WAA151 cup anemometer — fast response, low starting threshold, and excellent linearity up to 75 m/s — with the counter-balanced optoelectronic WAV151 wind vane, mounted on a common cross-arm. Shaft heating in both sensors keeps the bearings operational in cold climates.

Download datasheet (PDF)

Specifications

Technical specifications

Wind speed range (WAA151)
0,4–75 m/s; umbral de arranque < 0,5 m/s
Speed accuracy
±0,17 m/s (0,4–60 m/s, con función de transferencia característica)
Direction (WAV151)
0–360°; precisión mejor que ±3°; resolución ±2,8°
Operating temperature
-50 °C a +60 °C (con calefacción de eje)
Housing rating
IP65
Outputs
WAA151: pulsos 0–750 Hz proporcionales a velocidad; WAV151: código GRAY paralelo de 6 bits
Mounting
Cross-arm de 800 mm sobre mástil de 60 mm de diámetro nominal

Features

Key features

  • Industry standard in wind measurement, with decades of successful installations
  • Three lightweight conical cups reinforced with carbon fiber, with excellent linearity across the range
  • Infrared opto-chopper producing 14 pulses per revolution, output proportional to wind speed
  • Counter-balanced low-threshold vane with a 6-bit GRAY-coded optical disc
  • Shaft-tunnel heating in both sensors for below-freezing operation
  • Anodized AlMgSi aluminum housings for demanding environments

Applications

Typical applications

  • Synoptic and climatological weather networks
  • Automatic weather stations
  • Airports and civil aviation
  • Demanding wind measurement applications

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