Skye MiniMet, Руководство по установке

Страница: 18 / 58

7. MOUNTING WIND SENSORS
It is essential to install wind sensors in an open area, away from obstacles which may cause disturbances or
eddies in the natural wind patterns. If you have followed the described guidelines for erecting the mast, this
should ensure accurate wind measurements will be taken.
7.1 Vector Wind Sensors
To attach the rotor vanes to the body of the anemometer sensor, first remove the plastic protective
cap from the spindle and push the rotors firmly on. You will feel a slight 'click' as the ball bearing
locates, locking the rotor in place. To remove the rotor vanes, it is necessary to turn the entire
assembly upside down so that gravity releases the ball bearings. Push the rotors upwards (towards
the main body) and they are easily taken off. Replace the protective plastic cap over the spindle
during transit or storage.
To attach the directional vane to the body of the windvane sensor, first remove the plastic protective
cap from the spindle. This sensor has a single ball bearing which must be positioned exactly to
secure the vane in place. You will see a notch near the end of the spindle which must be aligned
with the ball bearing, just visible inside the vane cap. (It is located under the 'e' in 'Vector' on the
label of the vane). Align and push the vane firmly on. You will feel a slight 'click' as the ball bearing
locates, locking the vane arm in place. To remove the vane, it is necessary to turn the entire assembly
upside down so that gravity releases the ball bearing. Push the vane upwards (towards the main
body) and it is easily taken off. Replace the protective plastic cap over the spindle during transit or
storage.
IMPORTANT – the windvane sensor must be mounted accurately against a reference to north, the
use of a magnetic compass is advised. There is a large letter N on the windvane main body with an
arrow which must be orientated towards north. Rotate the wind vane arm so that the shorter, round
end is above the N and the arrow. Orientate the whole windvane body so that the arm, N and
arrow are all facing actual north. When the sensor is in the position it will be measuring wind coming
FROM a northerly direction.
15
MiniMet Installation