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Dew point broken?
Posted: Fri 15 Jan 2010 10:41 am
by Meteosat
Hi all the 1081 has been working well for a couple of weeks, but with the recent cold spell something appears to have gone wrong with the humidity/dewpoint indicator - see:
http://www.meteosat.talktalk.net/Porthcawl/trends.htm
Wonder if anyone else has experienced this and what might be the cause?
Cheers
Re: Dew point broken?
Posted: Fri 15 Jan 2010 10:52 am
by daj
Is 'Calculate Dew Point' ticked in your Station Settings page?
Re: Dew point broken?
Posted: Fri 15 Jan 2010 10:59 am
by steve
It looks like your humidity sensor is broken - stuck at 99%. It's possible your humidity really is that high, of course.
Re: Dew point broken?
Posted: Fri 15 Jan 2010 11:22 am
by Meteosat
steve wrote:It looks like your humidity sensor is broken - stuck at 99%. It's possible your humidity really is that high, of course.
I could accept that the humidity was very high as the snow band was with us - but today it should be much lower. I am wondering if some snow crept into the humidity sensor - can I take it apart at all to check?
Otrherwise back to Maplin unfortunately!
Cheers
Re: Dew point broken?
Posted: Fri 15 Jan 2010 11:41 am
by steve
I guess that if it was covered in snow which melted, some of it may have found its way inside. I would bring it inside, open it up and dry it out.
Re: Dew point broken?
Posted: Fri 15 Jan 2010 11:43 am
by steve
It does look as though the humidity in your area is up in the nineties at the moment, though.
Re: Dew point broken?
Posted: Fri 15 Jan 2010 11:44 am
by steve
Re: Dew point broken?
Posted: Fri 15 Jan 2010 11:59 am
by Meteosat
Yes - so it says - my other outside unit is declaring 93% - so perhaps I won't give up quite yet!
Hoping for some nice sunshine to maybe warm things up. The sensor had its usual protection on, but I notice on lifting the cover that there was some condensation on the inside - or even melted snow flakes?
Many thanks
Re: Dew point broken?
Posted: Fri 15 Jan 2010 12:30 pm
by Meteosat
Meteosat wrote:
Yes - so it says - my other outside unit is declaring 93% - so perhaps I won't give up quite yet!
Hoping for some nice sunshine to maybe warm things up. The sensor had its usual protection on, but I notice on lifting the cover that there was some condensation on the inside - or even melted snow flakes?
Many thanks
Even as I speak it has now gone to 98% - so perhaps there is hope after all!!
Cheers
Re: Dew point broken?
Posted: Fri 15 Jan 2010 11:48 pm
by Gina
I've been having very strange readings today - it's been very damp but the outside humidity sensor says otherwise.
