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Installation For Measuring Reflected Radiation - Kipp & Zonen SMP12 Instrucciones De Servicio

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  • MX

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  • MEXICANO, página 140

5.3 Installation for measuring reflected radiation

In inverted position the pyranometer measures the reflected global radiation.
1
H
The mounting plate prevents the pyranometer from being heated by solar radiation. The optional light shade
has an angle of 5 degrees and prevents direct radiation on the glass dome during sunrise and sunset.
The mounting device must not excessively disrupt the pyranometer's field of vision. The mast in the illustration
absorbs the radiation reflected by the earth's surface with a fraction of D/2πS. In the worst case (sun at its
zenith), the pyranometer shadow reduces the signal by a factor of R2/H2. As a rule of thumb, a black shadow
under the pyranometer with a radius of 0.1 x H reduces the signal by 1%. 99% of the signal comes from a range
with a radius of 10 x H.
4 Level the mounting plate well, as the pyranometer will be mounted without feet.
4 Fix the pyranometer to the mounting plate at a height of between 1 and 2 meters above an even surface
such as short grass.
SMP12 Smart Pyranometer | EN
R
S
2
3
5
1
Mounting plate
2
Pyranometer
3
Light shade (white)
4
Mast (black)
5
Equator
D
4
Assembly | 5
31

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