Marine Wind Monitor

Marine Wind MonitorThe Wind Monitor MA is an accurate and reliable wind sensor specifically designed for the rigors of the marine environment.Includes:Weatherproof junction boxMounting hardware.The Wind Monitor-MA measures horizontal wind speed and direction. Originally developed for ocean data buoy use, it is rugged and corrosion resistant yet accurate and light weight. The main housing, nose cone, propeller, and other internal parts are injection molded U.V. stabilized plastic. Both the propeller and vertical shafts use stainless steel precision grade ball bearings. Bearings have light contacting teflon seals and are filled with a low torque wide temperature range grease to help exclude contamination and moisture.Propeller rotation produces an AC sine wave signal with frequency proportional to wind speed. This AC signal is induced in a stationary coil by a six pole magnet mounted on the propeller shaft. Three complete sine wave cycles are produced for each propeller revolution.Vane position is transmitted by a 10K ohm precision conductive plastic potentiometer which requires a regulated excitation voltage. With a constant voltage applied to the potentiometer, the output signal is an analog voltage directly proportional to azimuth angle.The instrument mounts on standard one inch pipe, outside diameter 34 mm (1.34'). An orientation ring is provided so the instrument can be removed for maintenance and reinstalled without loss of wind direction reference. Both mounting post assembly and orientation ring are secured to the mounting pipe by stainless steel band clamps. A 3 meter (9.8 ft) pigtail cable assembly is supplied for electrical connections. For longer cable lengths a user supplied junction box or connector may be used. A variety of devices are available for signal conditioning, display, and recording of wind speed and direction.