Home built fan aspirated radiation shield

[niko]

Are you referring to the OS thermometers?

Nope, thermometers in general.

[Bashy]

Sorry, what i meant was, your including the OS in your "general" as well as other budget stations?
I mean its not really expensive compared to some that are available such as the Davis....

Or would you class them as a run of the mill (fairly accurate) but not the best they could be?

Im just trying to get an idea as to what i have bought?

[TechnoGuy]

How is it working so far.  Whats the verdict on this.  Did you get your other sensor and compare the readings.

[Bashy]

HI Techno, Heres a n image i took about 10 mins ago....

[TechnoGuy]

I received my solar panel motor and fan blade today. I also received my shielded Cat 5e cable to rewire my new LaCrosse 2310 sensors.  I will begin construction on my own home built fan aspirated radiation shield soon. 

[azjerry]

where did you order the fan and solar panel from?

[TechnoGuy]

where did you order the fan and solar panel from?

Ebay   Man I am having a hard time finding the right plant trays (saucers) locally. i think I am going to have to order them onlinre.

Bashy how are you getting along with yours.

[Bashy]

not too bad, just try not to buy saucers that are bevelled underneath or with a rim underneath
like i did, I need to replace the top 1 some time soon as it holds water....

Also make sure you seal the solar unit very well, i failed to seal it good enough and it is now full
of damp/moisture, will get a new 1 soon.

Take ya time when making it as the prep is 90% of the job and it will make a big difference

[TechnoGuy]

I have completed my fan aspirated radiation shield build. It has been test fitted with the brackets and the sensor.  All I have to do now is paint and reassemble.  I also have a little more work to do on my mounting bracket and it should be up and running in the next few days.  This thread made it really easy to build it.  I won't bore you with the build pictures but will post a few pictures of the final product once completed.

[Bashy]

Congrats m8, Can i ask, the bottom of the saucers, do they have a rim on them that would hold water?
If so i would either sand the rim down or fill it so the bottom will not hold any water.

I used melted candle wax, but it aint too good in cold weather

[MichaelPT]

hi everybody

what I did is warm, the sources up in some water then get a good pair of scissors
and cut the ridge off

mick

 

[Bashy]

are you referring to the lip on the outside Mick?
I was on about the  the 1 on the bottom, i suppose its like a tiny raiser and only
about 1 or 2mm high, i doubt very much its on all the different types but it was on
mine and it held the water on the top of the FARS pretty darn good lol...

I have finally found an image just to show what i mean

[Clanger]

hi everybody

what I did is warm, the sources up in some water then get a good pair of scissors
and cut the ridge off

mick

 

Thats the way to do it 

[MichaelPT]

Hi


I cut off the under lip on the saucer it does away with filling in the edge with Filler
top saucer I used course sandpaper to remove the Small ridge

mick

[Bashy]

Yeah thats what i failed to do, (removing the bottom ridge) I will make a new one
sometime, more than likely next year as its not to the standard that i would prefer,
i.e. the spacers aint the best

Also the top saucer is a bit of a mess. I also want to make apoint on the top saucer
as even though its now flat'ish water still accumulates on the top...

Any ideas for the point as it will be a little difficult due to the bracket mounting...

I do have a slightly unrelated question...

On the Davis, when the full setup is all mounted in the 1 place on the mounting pole
I have noticed that the Black rain bucket is directly above the FARS, wouldnt this
attract heat and give false readings? It just seems to defeat the object having the
FARS white and a heat magnet above it?