WindMaster and WindMaster Pro 1561-PS-0001. Issue 11 February 2017
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7
U Alignment to
Transducer 1
Figure 2 shows the direction and polarity of the U, V and W axes.
Polar definition
The wind speed in the UV plane, with direction in degrees from 0 to 359 , with respect to the Reference spar (which is
normally aligned to North).
U, V, and W axes definition
+U is defined as towards the direction in line with the north spar as indicated in the diagram.
+V is defined as towards the direction of 90 anti-clockwise from N / the Reference spar.
+W is defined as vertically up the mounting shaft.
Note, when the unit is configured for the X2 setting the UV definition rotates 30 degrees anti-clockwise such that U is
now in line with transducer axis 1.
Figure 2 U, V and W Axis Definition
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