The Wind Monitor MA is an accurate and reliable wind sensor specifically designed for the rigors of the marine environment.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 (see below). Each is supplied in a weatherproof junction box with mounting hardware.
Wind speed: 0-100 m/s (224 mph)
Azimuth: 360° mechanical, 355° electrical (5° open)
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)
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
Potentiometer excitation: 15 VDC maximum
A 12 meter (39.4 ft) pigtail cable is supplied for electrical connections.
For longer cable lengths a user supplied junction box or connector may be used.
Overall height: 37 cm (14.6 in)
Overall length: 55 cm (21.7 in)
Propeller: 18 cm (7 in) diameter
Mounting: 34 mm (1.34 in) diameter (standard 1 inch pipe)
Sensor weight: 1.0 kg (2.2 lbs)
Shipping weight: 2.3 kg (5 lbs)