Re: odd off the wall temp readings
- The errors you posted would not be related to solar heating.
When variables are out of range like this, it usually indicates some
type of noise / weak batteries.
If you are running wirlelessly, you may see these if you are on the
edge of the effective distance (usually well under 30 ft if going
through a wall).
--- In firstname.lastname@example.org, "wandarmd" <bdaqueen@...>
> Hello, not sure about the cloud cover conditions and the high
> readings, but, will go back and see what the conditions were.
> In my original message I noted that all my settings were reading
> the wall:percent
> Mon Nov 26 13:07:08 2007 > Outdoor temperature reading of 176.7 F
> detected. Value out of range (-40.0 to 157.8).
> Mon Nov 26 13:07:08 2007 > Outdoor humidity reading of 110.0
> detected. Value out of range (1 to 100).radiation
> Mon Nov 26 13:07:08 2007 > Dewpoint reading of 181.0 F detected.
> Value out of range (-82.0 to 157.8).
> Mon Nov 26 13:07:08 2007 > Windchill reading of 176.7 F detected.
> Value out of range (-40.0 to 157.8).
> Monday was the last time I saw these reading, but the Temp is still
> wrong. Is there a way to determine if the problem is solar
> from the surroundings - and would there be another way to deal withsolar
> this issue?
> Thanks again,
> --- In email@example.com, Karl Kingston
> <kkingsto@> wrote:
> > Sounds exactly like the problem I had. The problem is excess
> > radiation from the surroundings. Was getting temps that were 10-30
> > degrees warmer than the surrounding areas.Basically
> > Let me ask: if it's a really cloudy day, is the temps more stable
> > on a really sunny day, the temps skyrocket?
> > I ended up building a asperated shelter for my sensor.
> > this:
> > 1) got some sections of PVC from Home Depot.
> > 2) got a PC fan (12 volts).
> > 3) Found an Solar panel at Harbour Freight (maybe 40-50 bucks).
> > a) Put the PVC pipes together so I had a candy-cane shaped thing.
> > b) installed the fan into the top of the candy cane (so the air
> > blowing out). Wired this to the solar panel.temp
> > c) at the other end, I put the sensor.
> > So now my readings are more consistant with the other stations in
> > area.
> > On Thu, 29 Nov 2007, wandarmd wrote:
> > > Hello, I just went back and looked at the last few days, the
> > > starts to raise at 8:30 AM till about 1:00 PM then starts to goof
> > > down to an accurate reading. The station is setup in the middle
> > > the garden. The temp sensor is under this shelf that the rainremove
> > > is sitting on- mounted on an old fence post. I am able to
> > > the cover from the temp sensor (did that when I replaced theat
> > > batteries), but maybe with the cover on the temp sensor opening
> > > the top is sitting to close to shelf that the rain gauge is on?sensor
> > > I am going to look at my , " tweaks section and > verified that
> > > are no temperature tweaks entered" , not sure what I am looking
> > > but will look at that as well.
> > >
> > > Any other suggestions or ideas are welcome.
> > >
> > > Thanks again for all your help, sometimes I think the temp
> > > being sympathetic to my disliking the cold!
> > >
> > >
> > > WW
> > > --- In firstname.lastname@example.org, "steve_03222"
> > > <steve_03222@> wrote:
> > >>
> > >> WW, In a previous post you mentioned that the temp sensor was
> > > a
> > >> shelf to get out of the direct sun. If it is under a shelf and
> > >> against a wall, with no air flow,that could cause highreadings.
> > > it
> > >> 30 degrees off day & night? Have you checked in the tweaks
> > > and
> > >> verified that there are no temperature tweaks entered?
> > >> Steve
> > >>
> > >
> > >
> > >