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2 wind speed, References, Wind speed – Campbell Scientific 034B-L Met One Windset User Manual

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Met One 034B Wind Set

Symptom: Incorrect wind direction

1. Verify that the excitation voltage, range code, multiplier and offset

parameters are correct for the datalogger type.

2. Check orientation of sensor as described in Section 7, Installation.

9.2 Wind Speed

Symptom: No wind speed

1. Check that the sensor is wired to the pulse channel specified by the pulse

count instruction.

2. Disconnect the sensor from the datalogger and use an ohm meter to check

the reed switch. The resistance between the red and black wires should

vary from infinite (switch open) to less than 1 ohm (switch closed) as the

cupwheel is slowly turned.

3. Verify that the configuration code (switch closure, Hertz), and multiplier

and offset parameters for the pulse count instruction are correct for the

datalogger type.

10. References

The following references give detailed information on siting wind speed and

wind direction sensors.

EPA, 1989: Quality Assurance Handbook for Air Pollution Measurements

System, Office of Research and Development, Research Triangle Park, NC,

27711.

EPA, 1987: On-Site Meteorological Program Guidance for Regulatory

Modeling Applications, EPA-450/4-87-013, Office of Air Quality Planning and

Standards, Research Triangle Park, NC 27711.

The State Climatologist, 1985: Publication of the American Association of

State Climatologists: Height and Exposure Standards, for Sensors on

Automated Weather Stations, vol. 9, No. 4.

WMO, 1983: Guide to Meteorological Instruments and Methods of

Observation, World Meteorological Organization, No. 8, 5th edition, Geneva,

Switzerland.

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