Campbell Met One 034A-L, Instruction Manual

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034A-L Table of Contents

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1.  General ........................................................................1

2.  Specifications .............................................................1

3.  Installation...................................................................1

3.1  Siting.........................................................................................................1
3.2  Mounting...................................................................................................1

4.  Wiring ..........................................................................2

5.  Datalogger Programming ...........................................3

6.  Sensor Maintenance ...................................................6

7.  Long Lead Lengths .....................................................6

8.  Wind Direction Measurement Theory........................8

8.1  AC Half Bridge (P5) .................................................................................8
8.2  DC Half Bridge (P4) .................................................................................8

9.  References ..................................................................8

Appendix

A.  Wind Direction Sensor Orientation ....................... A-1

A.1  Determining True North and Sensor Orientation .................................A-1
A.2  Prompts from GEOMAG .....................................................................A-2

Figures

3-1.  034A-L Mounted on a 019ALU Horizontal Crossarm ............................2
4-1.  034A-L Windset Wiring Diagram ...........................................................3
8-1.  034A-L Potentiometer in a Half Bridge Circuit.......................................8
A-1.  Magnetic Declination for the Contiguous United States .....................A-1