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Figure 7 Non-linearity (sensitivity variation with irradiance) of Kipp & Zonen
pyranometer CM 11.
The temperature dependence of the sensitivity is an individual function. For
a given CM 11 the curve is somewhere in the shaded region of figure 8.
Figure 8 The curve of relative sensitivity variation with instrument temperature
of a pyranometer CM 11 is in the shaded region. A typical curve is
drawn.
The directional error is the summation of the azimuth and zenith error and is
2
commonly given in W/m
. Figure 9 shows the maximum relative zenith error in
any azimuth direction for the CM 11.
TECHNICAL DATA
19
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