The wind speed sensor is a four blade helicoid propeller. Unique transducer produces a pulse signal without electrical contacts or slip rings. The wind direction sensor is a durable molded vane. Vane angle is sensed by a precision potentiometer housed in a sealed chamber.
All materials are carefully selected for corrosion resistance and maximum durability in the harsh marine environment. Ceramic bearings are used throughout. The instrument mounts on standard 1 inch pipe. Separate signal conditioning circuits are available to provide voltage or current signals when needed. Each is supplied in a weatherproof junction box with mounting hardware.
| Range |
Wind speed: 0-100 m/s (224 mph)
Azimuth: 360° mechanical, 355° electrical (5° open) |
| Accuracy |
Wind speed: ± 0.3 m/s (0.6 mph) or 1% of reading
Wind direction: ± 3 degrees |
| Threshold |
Propeller: 1.0 m/s (2.4 mph)
Vane: 1.0 m/s (2.4 mph) |
| Signal Output |
Wind speed: magnetically induced AC voltage, 3 pulses per revolution.
1800 rpm (90 Hz) = 8.8 m/s (19.7 mph)
Azimuth: analog DC voltage from conductive plastic potentiometer
resistance 10K Ω , linearity 0.25%, life expectancy
50 million revolutions |
| Power Requirement |
Potentiometer excitation: 15 VDC maximum |
| Dimensions |
Overall height: 37 cm
Overall length: 55 cm
Propeller: 18 cm diameter
Mounting: 34 mm diameter |
| Sensor weight |
1.0 kg |
| Shipping weight |
2.3 kg |
|
