This user guide provides installation, operation, maintenance, and troubleshooting information for the Vaisala WAA151 anemometer.
The Vaisala WAA151 is a photoelectric cup anemometer designed for fast response and low threshold. It features three lightweight conical cups on an axis with a light-blocking disk that generates pulse train outputs proportional to wind speed, capable of measuring up to 75 m/s. This manual is written in Chinese.
| Sensor/Converter Type | Cup anemometer / Light-blocking disk |
|---|---|
| Measurement Range | 0.4 - 75 m/s |
| Start-up Threshold | < 0.5 m/s |
| Distance Constant | 2.0 meters |
| Operating Power Supply | 9.5 - 15.5 V DC, 20 mA |
| Heating Power Supply | 20 V AC or DC, 500 mA |
| Operating Temperature | -50 to +55 °C |
| Dimensions | 240 x 90 mm (H x D) |
The characteristic transfer function is Uf = 0.1007 × R + 0.3278, where Uf is wind speed and R is output pulse frequency.
The heating element provides a heating power of 10 watts to keep bearing temperatures above freezing in cold climates.