Campbell Scientific 024A-L Met One Wind Direction Sensor - Manual (Page 12)

024A Met-One Wind Direction Sensor
5. Wire according to the wiring diagram generated by SCWin Short Cut.
5. Overview
Met One's 024A is a wind vane that measures wind direction from 0 to 360
degrees with a 5 degree accuracy. It uses a 10-kohm potentiometer to sense
wind direction. A datalogger applies a precision excitation voltage to the
potentiometer, resulting in an analog voltage output that is directly proportional
to the wind direction's azimuth.
Cable length for the 024A is specified when the sensor is ordered. TABLE 5-1
gives the recommended cable length for mounting the sensor at the top of a
tripod/tower via a CM202 crossarm.
TABLE 5-1. Recommended Cable Lengths
CM106 CM110 CM115 CM120 UT10 UT20 UT30
11 ft 14 ft 19 ft 24 ft 14 ft 24 ft 37 ft
The 024A's cable can terminate in:
• Pigtails that connect directly to a Campbell Scientific datalogger
(option –PT).
• Connector that attaches to a prewired enclosure (option –PW). Refer
to www.campbellsci.com/prewired-enclosures for more information.
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