03002-10A
The Wind Sentry Anemometer and Vane measure horizontal wind
speed and wind direction. The small size, simplicity, and corrosion
resistant construction provide a professional quality instrument at
a modest cost. The cup wheel and vane shafts use stainless steel
precision instrument grade ball bearings which are lubricated with
a wide temperature range high quality instrument oil. Standard
bearings have light contacting seals to exclude contamination and
help retain lubricant for longer service life.
Cup wheel rotation produces an AC sine wave voltage signal with
frequency directly proportional to wind speed. This AC signal is
induced in a stationary coil by a two pole ring magnet mounted on
the cup wheel shaft. One complete sine wave cycle is produced for
each cup wheel revolution.