Awesome thanks for the update, I wasn’t sure if it had been long enough or not. It seems like maybe today it calibrated as readings are much closer with full sunshine!
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Still not sure the UV calibration is working. My Sky will simply not read over 7, when it’s more likely 10ish. Plenty of full-sun days (including at peak sun). Not sure what’s happening. Anyone in southern hemisphere experiencing same?
Hi @barry . What is your station ID ? We’ll take a look at the CL for UV status for your station. Guessing that a valid UV baseline has not been established yet.
Found your station, @Barry. Yes, it turns out the CL system didn’t have quite enough days to confidently apply a calibration. But the humans thought it was close enough. You should see improvement starting today.
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Thanks David. We’ve had quite a few full sun days over the last few weeks, looking forward to seeing the results. Thanks for your help. Much appreciated. Cheers!
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Hello
Station Id 2012
My UV reading seem very low. What is the scale used in the app. My reading nearly exceed 2.0 on a hot sunny day.
I would assume it should have been reading around 8-10 range that day.
@anon84912554
Hello
how long is your station active ? Does the sky have an open view to the sky ??
WF people will have a look at your data and see if the autocalibration kicked in or not for your station (knowing it needs several days of sun to start working)
The sky has been active for 6 days now with clear view of the sky
I have 2 SKYs at the same location. One shows UV 3.6 and the other 1.4. There is always such a difference (about 250%)
Mine were the same way until there were enough clear days, especially at solar noon, for the calibration to be applied.
SKYs were installed a few months ago. They should have been calibrated until now.
Maybe one of the units has a dirty sensor screen. Have you checked both?
I have not checked if one sensor is dirty, but I don’t believe it is, because there were long and heavy rains the last days that cleaned everything around. But I’ll check it tomorrow.
Yours is another where the CL system hasn’t had enough days to apply a calibration, yet. We’ve applied a manual adjustment that should produce much better data, and this will get better after the CL system collects and processes more data.
Interesting… you may have uncovered a bug in stations (thanks!) with two SKY units as both units have enough data for confident calibration. but the update was only applied to one of your units. We’ll look into that and meanwhile, we’ve applied the calibration to both of your units. They should agree much better with each other (and reality) as soon as the sun comes up!
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Much better. Thanks so much.
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@anon84912554
I install Sky unit 9. december and then reset data 13. december when I set Sky on my roof.
In a period from 9. to 13.12 I have one sunny day, after that in december I don’t have any more sunny days.
In January I have nearly 9 sunny days. No full sunshine but mainly sunny in more of this days.
My Sky and further give bigger values then real.
Hi,
@anon84912554 I think my station (4848) has low UV readings. Could someone please check if my station has had a calibration applied.
@anon84912554 Mine is still reading about 2 points lower than the official reading. Not sure this auto calibration is working? We have had plenty of clear days lately so that shouldn’t be an issue.
Gary
Hi Gary. Thanks for your feedback (and patience!).The CL process for UV is still a work-in-progress. It has been pretty conservative about changing a calibration to date but we are about to implement a change that should improve the ongoing calibration and also be more aggressive about deciding when to apply it.
That said, it’s possible you have a faulty sensor or something else is going on. Looking at your January data it definitely seems be to reading lower than it should. We’ll dig in a little deeper and you should see your data get better soon.
Thanks for the input. Your SKY’s UV sensor was auto-calibrated on 23 January. Has your data looked better since then?
No auto-calibration, yet, but your values definitely look low. We’ll apply a manual calibration today based on a human analysis.