Climatronics' Wind Mark III (WM-III) Wind Sensors
combine accuracy and reliability with low cost. They
also meet the Environmental Protection Agency
(EPA) Prevention of Significant Deterioration (PSD)
requirements and are well suited for general wind
monitoring applications.
The WM-III sensor is also available as a wind speed
only (P/N 100108-1) or wind direction only (P/N
100108-2) instrument.
Wind speed is sensed by a three-cup anemometer
and converted to an electrical signal by a solid-state
photo chopper. A counter balanced wind vane
coupled to a precision, low torque potentiometer
senses wind direction. The sensors use stainless
steel precision ball bearings for maximum life and
low threshold. Traceability to NIST is available as
an option for each anemometer cup assembly by
comparison testing against an NIST transfer
standard in our wind tunnel test facility. The sensors
and their crossarm are an integral unit. The
crossarm mounts on a 3/4-inch IPS vertical pipe stub
(1.05 inch O.D.). Orientation of the crossarm is along
an East-West plane.
The LEXAN cup (P/N 102138) and magnesium vane
(P/N 101944) combination are standard. The Heavyduty
aluminum cups (P/N 101286), and heavy-duty
magnesium vane (P/N 101292) are optional. A
sensor transit case (P/N 100255) is available.
Climatronics Universal Interface Module (UIM), IMP-
800 series of digital data acquisition units, or almost
any data loggers / data acquisition system currently
available on the market are easily interfaced with the
Wind Mark III sensor.
The Wind Mark III sensor can be provided with a 4 -
20 mA current loop output. In this configuration, the
part number is 101908.