Campbell Met One 034B, Инструкция по эксплуатации

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Met One 034B Wind Set
6
Threshold: 0.4 m s –1 (0.9 mph)
Accuracy:
± 4°
Resolution:
< 0.5°
Potentiometer Resistance: 0 to 10 k
Ω
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
(p. 9)
, and Section 7.4 , Programming
(p. 10)
. Short Cut does this work for
you. See Section 4 ,
QuickStart
(p. 2)
, 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 9 , References
(p. 13)
, for a list of references that discuss siting wind
speed and direction sensors.
7.2 Mounting Options
7.2.1 Mount to a Crossarm
Tools required:
• 1/2-inch open-end wrench (for CM220)
•
5/64-inch and 1/16-inch Allen wrenches
•
compass and declination angle for the site (see Appendix C ,
Wind
Direction Sensor Orientation
(p. C-1)
)
•
small screw driver provided with datalogger
•
UV resistant cable ties
• small pair of diagonal-cutting pliers
• 6-inch to 10-inch torpedo level
The 034B is mounted to a Campbell Scientific crossarm using either the 17953
Nu-Rail® Crossover Fitting (FIGURE 7-1 ), or the CM220 Right-Angle
Mounting Kit (FIGURE 7-2 ).
1. Fully insert vane arm into hub (see FIGURE 7-1 ).
2. Align vane with center axis of sensor (see FIGURE 7-1 ).
3. Using the Allen wrench, tighten set screws at the top of the hub (see
FIGURE 7-1 ).