Campbell Scientific 034B-L Met One Windset - Manual (Page 16)

Met One 034B Wind Set
6.1 Wind Speed
Operating Range: 0 to 75 m s –1 (0 to 167 mph)
Threshold: 0.4 m s –1 (0.9 mph)
Accuracy: ± 0.12 m s –1 (±0.25 mph) for wind speed
< 10.1 m s –1 (22.7 mph)
± 1.1% of reading for wind speeds
> 10.1 m s –1 (22.7 mph)
Output Signal: contact closure (reed switch)
Resolution: (1.789 mph) / (scan rate in seconds)
or (0.7998 m s –1 ) / (scan rate in seconds)
Anemometer Height: 24.4 cm (9.6 in)
Anemometer Radius: 10.7 cm (4.2 in)
6.2 Wind Direction
Length: 11.4 cm (4.5 in)
Measurement Range: 0 to 360°
Threshold: 0.4 m s –1 (0.9 mph)
Accuracy: ± 4°
Resolution: 0.5°
Potentiometer Resistance: 0 to 10 kΩ open at crossover
6.3 General Specifications
Operating Temperature Range: –30 to +70 °C
Weight: 907 g (2.0 lb)
7. Installation
If you are programming your datalogger with Short Cut, skip Section 7.3,
Wiring, and Section 7.4, Programming. Short Cut does this work for you. See
Section 4, Quickstart, for a Short Cut tutorial.
7.1 Siting
Locate wind sensors away from obstructions such as trees and buildings. As a
general rule, there should be a horizontal distance of at least ten times the
height of the obstruction between the wind set and the obstruction. If it is
necessary to mount the sensors on the roof of a building, the height of the
sensors, above the roof, should be at least 1.5 times the height of the building.
See Section 10, References, for a list of references that discuss siting wind
speed and direction sensors.
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