Mounting weather station to large chimney stack

[dbrb2]

Hi,

I have a WH1090 offset electronics weather station from Maplin. I live in London, on the top floor of an old block of flats.

I have access to the base of my chimney stack, but the stack is ~15ft tall

In the past, I have put an aerial up by employing an installer - but that then puts the mount entirely out of my reach should I ever want to adjust the station.

I have been thinking about buying a 20ft pole, mounting it at ground level and at head height, with the station on top. About 15ft of the total length would be running parallel to the brickwork, but it would bean I could rescue it if needs be.

I was looking at a Al Alloy scaffold pole - which would probably do - just a bit worried about flex at the tip.

Does anyone here have any suggestions?

[daj]

Bear in mind your rain collector is very sensitive to movement so if the pole sways even a tiny fraction in the wind it will count this as a rain tip. If possible the rain collector should be located on a solid base

[dbrb2]

Yes - I had been thinking of only mounting the anemometer on the top of the pole, depending upon how sturdy my eventual mount is.

I have run RJ11 extensions, so the transmitter unit (also temp and humidity) can be shaded and kept at the pole base, as can the rain sensor, bolted to a wall top.

This has the disadvantage that there will be some rain shadow, but it will also be a very firm base.

Problem now is how to get my sensors ~20ft up, so that they are still accessible in dire need without getting a contractor out.

I may ask the guys who put up my original aerial, but would be grateful for any other thoughts

[ironeagleuk]

Would it be possible to provide a photo of where you're wanting to mount, as it may make it easier for it to be visualised

[Tau Bootis]

I don't think there will be a problem with movement at the top, if you have enough space you could fit a pivot joint allowing you to lower the mast without undoing all the brackets, or even using two pivots if space is tight.
Here is a shop that sells this kind of kit, http://www.flints.co.uk/pdfcatalogue/tu ... ttings.pdf T
here is a nice locking elbow on page 4

[dbrb2]

A couple of photos...a long pole would be a bit ugly - I could spray it brown to merge with the bricks a bit - I could mount it at it's base and about 5ft up, the rest would be free standing.

Mounting it up by the existing aerial looks tricky - I don't think I'd want to do it myself, which means if anything failed I'd be stuck :-p

Each brick is ~80mm wide (with mortar), and the base of the photos is about 5ft from the parapet floor

That would make the top of the stack ~40*8=3.2m from the base of the photos

A mount there, and one a bit lower, and I may be ok

[beteljuice]

Assuming your only access is from the direction of the photo, then your stand-off brackets need to clear the brick 'lip' of the stack.

20 feet of 32mm Alu mast without guy is just about feasible with ony the anemometer on board.
The beteljuices (now defunct) mast was made up of 6 x 5 feet plug together sections. This would assist with any necessary dismantling (as long as security is not a problem)