Topic: 2902a, Solar Radiation and UV inconsistent

[ckqualls]

I have a 2902a, and the readings for Solar Radiation and UV are inconsistent.

Now, at 10am, its gone from 61,000 lux down to 6,000, UV from 2 to 0. Eventually it will go back up. This has been occurring ever since station was installed.

Station has no trees or any other obstacles nearby.

Any ideas?

[galfert]

Well as clouds move in and out this is normal.
Also if there is any dew condensation readings are affected a bit as the sun comes up after it has rained over night or early morning until it evaporates.

[wardie]

I have one of these and can compare it daily to a very big light meter I have, my solar PV installation... I find it tracks pretty well, see attached dashboard example - PV in green (inverted), PWS light meter in yellow. The difference early morning is due the orientation of my PV panels not generating much in the morning.



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