Cumulus Support

Areecki; for your information the hole to accommodate the sensor/transmitter unit needs to be a minimum of 45mm (inside tube diameter); 50mm inside diameter plastic waste pipe will do nicely.
Mike.

Areecki wrote:Thank you very much for the reply. I hope that with the help of google translator can manage the construction of the security sensor. I wanted to ask how different types of stations 1080 and 1090. Is there any difference apart from the display? In Poland, the Model 1090 came a few days ago and is more expensive since 1080 about 30 - $ 35.
Whether sensors are better, and that soft has been changed? Yours

Mine is WH1080, I do not know the WH1090 model.

PS What is the effective protection of the sensor and what is the difference in the sunny days
as a result of the temperature?

It can raise by up to 2 degrees above the actual air temperature

Very good website: http://users.otenet.gr/ ~ weather / project_radiation-shield.html

Areecki; for your information the hole to accommodate the sensor/transmitter unit needs to be a minimum of 45mm (inside tube diameter); 50mm inside diameter plastic waste pipe will do nicely.
Mike.

Can not you do this without the PVC pipe from the same pot?
Does not apply in this windmill, and I fear that the PVC pipe + pots will be little air movement, because I want to do the same pot without a fan and PVC pipe. Something like in this photo:
http://www.up.4clubbers.pl/out.php/i627_d.JPG
This is not my design, and is too narrow for the sensor to 1080

That design would work without the tube.

Diameter holes in the pots will therefore be around 45 - 50 mm.
A minimal amount of pots they can be?

It would depend on the height of the pots, but enough to cover the sensor unit with perhaps 1" above the top of the sensor.

Inside the pots should be painted matt black paint on the outside of the white?

No, black will absorb heat, they need to be painted white inside and out

beteljuice wrote:

No, black will absorb heat, they need to be painted white inside and out

NOT QUITE TRUE ! - or at least in error. The original statement is correct - Ideally exterior should be brilliant gloss white or polished metal, inner surfaces should be matt (paintboard) black.

Theoretically all white surfaces would act as mirrors, thus directing the radiation onto your sensor housing. However; unless you have 'perfect' surfaces, each reflection is reduced in power, thus for most of us it is a measure unnecessary for the quality of our kit.

Repairman77 wrote:Backing up this theory; why are all professional Stevenson screens white inside and out?

.. why are all professional Stevenson screens white inside and out?

steve wrote:

Repairman77 wrote:Backing up this theory; why are all professional Stevenson screens white inside and out?

Modern UK Met Office screens now have the louvres painted black inside. Apparently they conducted tests and found this was better.

http://www.northisles-weather.co.uk/metscreen_2437.jpg

Repairman77 wrote:I bow to a higher intelligence Steve and Beteljuice.

Areecki wrote:What's different about 1080 and 1090?
And you better buy and why. ?

The 1090 appears to have a different console screen to the 1080 but the same remote units.
Here are the links...
http://www.alibaba.com/product-tp/10467 ... _Wind.html
http://www.alibaba.com/product-tp/12307 ... ation.html

If I do not have low-pots can I do to protect the ordinary
pot high? Just take 3 or 4 pots and the larger the space between them.


You really need 6 or 7 low pots to be effective although if you use the inner tube then it would have a small affect to reduce temperature problems. I would think high pots would tend to trap the heat more.

Mike.

Areecki wrote:The sensor of 1080 is 50 mm in diameter? It is only 5 cm and tends to be greater in the photo.
How much should the diameter of the lower base so as to drill the appropriate
hole, leaving space on the screws.

The sensor is just under 42mm wide by about 25mm, and around 100mm high, so a 50mm tube is ideal which slips over the sensor easily. You really need a tube as well as the pots to make it effective. Pots on their own would not work so well.

How much is best? : Http://www.up.4clubbers.pl/out.php/i661_12.PNG

You need a gap on the outside of the tube to the the inside holes of the pots, 10mm would be OK.
The size of the pots does not matter but at least 150mm is best.
Your diagram shows the whole thing upside down.

Thanks for all the information

P.S
Could you send a good quality photo of your sensor, you can see the avatar? I would like to see how you have the shield attached to the sensor.

The tube just rests on the sensor mounting arm.
There is a picture of the senso on this thread 4th post down...
https://cumulus.hosiene.co.uk/viewtopic.p ... t+humidity