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Weather Station Hardware => What Weather Station Should I Buy? => Topic started by: phil2010 on May 12, 2017, 05:50:08 PM
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...... From a Oregon WMR80 to Ultranatura UN1200, the main reason for this was, the rain gauge stopped working after a storm, then soon after the anemometer slowly seized up.
But I also hated the main display unit as it would only display the rain amount per hr and it didnt display both indoor and out door temps at the same time.
This new station has everything I want showing on the display, but I have no idea if the quality is better or worse though? One thing I noticed and took me a bit by shock was size of the anemometer, its huuggge, must be at least 2-3 times bigger then my old anemometer. Is there any advantage of a huge anemometer? Also it has a 2nd temp sensor in the anemometer, so Im guessing that will be the temp how it feels like (in the sun and wind)?
I have got as far as setting the temp sensor up under our wood barn and putting batteries in the anemometer but I haven't got the anemometer or rain gauge up yet, but hopefully in the next day or 2 they will be up and working :-)
(http://i67.tinypic.com/11934a8.jpg)
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Is there any advantage of a huge anemometer?
Also it has a 2nd temp sensor in the anemometer, so Im guessing that will be the temp how it feels like (in the sun and wind)?
The only thing I could assume is that the "huge" anny would literally require more velocity to initially spin and sustain (more inertia to overcome), unless it has some super slick mechanism and/or some super cup design.
Temp sensor in the anny? That would be a first for me. How would it be protected from solar insolation? The heat index and wind chill are calculated by your console, and why a temp sensor would be in the anny is beyond me, unless they expect you to take a really bad "elevated" temp too. :???:
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Is there any advantage of a huge anemometer?
Also it has a 2nd temp sensor in the anemometer, so Im guessing that will be the temp how it feels like (in the sun and wind)?
The only thing I could assume is that the "huge" anny would literally require more velocity to initially spin and sustain (more inertia to overcome), unless it has some super slick mechanism and/or some super cup design.
The design doesnt look any differnt then my old anemonmeter, it just huge, looks more like a toy its so big :eek: I'll post pcs when I have it up.
Temp sensor in the anny? That would be a first for me. How would it be protected from solar insolation? The heat index and wind chill are calculated by your console, and why a temp sensor would be in the anny is beyond me, unless they expect you to take a really bad "elevated" temp too. :???:
At the moment i have the anemometer outside in the porch and its 1c higher then the actual temp sensor that I have under the barn.. The temps for the anemometer will be sky high in the full sun and a bit pointless surely?
To my eyes, that Ultranatura UN1200 console looks suspiciously like a relabelled Oregon Scientific unit...is it?
Its looks like a Brasser but renamed because the graphics on the base unit are the same and the sensors are the same too, with the huge anemometer
(http://i63.tinypic.com/xdh2cj.jpg)
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Is there any advantage of a huge anemometer?
Also it has a 2nd temp sensor in the anemometer, so Im guessing that will be the temp how it feels like (in the sun and wind)?
The only thing I could assume is that the "huge" anny would literally require more velocity to initially spin and sustain (more inertia to overcome), unless it has some super slick mechanism and/or some super cup design.
The design doesnt look any differnt then my old anemonmeter, it just huge, looks more like a toy its so big :eek: I'll post pcs when I have it up.
Temp sensor in the anny? That would be a first for me. How would it be protected from solar insolation? The heat index and wind chill are calculated by your console, and why a temp sensor would be in the anny is beyond me, unless they expect you to take a really bad "elevated" temp too. :???:
At the moment i have the anemometer outside in the porch and its 1c higher then the actual temp sensor that I have under the barn.. The temps for the anemometer will be sky high in the full sun and a bit pointless surely?
The logic behind this is unbelievable to me, unless they're trying to get unsuspecting people to spend money on worthless equipment, and that's exactly what this is. I'd rather have a Netatmo in the sun.
Your money, but I'd get it back.
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The anemometer is likely huge because they are trying to use it as a solar radiation shield, plus wind meter all into one. If it doesn't have a fan, I don't see how enough air will circulate through to give anything less than 5 C or so higher than ambient. Does it have any slits in it for air to get to the thermo/hygro?
This station looks like the old Honeywell model...
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to give anything less than 5 C or so higher than ambient. Does it have any slits in it for air to get to the thermo/hygro?
I think you're being generous at 5C. That tiny little compartment will COOK in full sun, with or without slits, which looking at the pic even worse, it has none. Still have the ISS (or equivalent, at least).
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The anemometer is likely huge because they are trying to use it as a solar radiation shield, plus wind meter all into one. If it doesn't have a fan, I don't see how enough air will circulate through to give anything less than 5 C or so higher than ambient. Does it have any slits in it for air to get to the thermo/hygro?
I think the sensor is in the base where your screw it to mask, pole or whatever, as its got a 2 small holes that look like sensor holes. But yeah I cant see the readings being much good if there's no compensation for the sun beaming at the sensor, but I will know more when its up
These temp sensors that are located with the anemometer on the pole like on the Davis are a bit like the same thing, yes they much more shielded from the sun, but I cannot see how round plastic boxes can stop the sun from heating them up inside as the sun gets things pretty dam hot?
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The anemometer is likely huge because they are trying to use it as a solar radiation shield, plus wind meter all into one. If it doesn't have a fan, I don't see how enough air will circulate through to give anything less than 5 C or so higher than ambient. Does it have any slits in it for air to get to the thermo/hygro?
These temp sensors that are located with the anemometer on the pole like on the Davis are a bit like the same thing
I'm not sure if you actually believe Davis or any other PWS maker (besides yours) puts a thermo/hydro sensor in it's anny because your post is somewhat ambiguous. As I said, yours would be the first, with good reason. :roll:
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I cannot see how temp sensors that are in the same location as anemometers, can be accurate, mine wont be I know, but mine has another temp sensor that I have under a barn roof away from the sun.
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I managed to get the other sensors up this morning, probably not the ideal place but Im sure it will work ok for what I want it for. With my old anemometer I managed to get someone to put it on the roof of the house, but I need to get to this anemometer easier to change the batteries.
(http://i64.tinypic.com/34h8faa.jpg)
(http://i68.tinypic.com/2epo5n7.jpg)
As you can see the temp sensor thats under the barn is 13.6c and the temp sensor on the anemometer is higher at 15.4c and the sun isn't even out :shock:
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The location of the rain bucket is unfortunately, very poor. You want to locate it in the open, away from buildings, trees, etc, and have it 4 ft off the ground, so wind does not set it off.
The 15C you see on the display is a "wind chill" reading. It also may be a "heat index" reading in the summer. Refer to you manual to be sure. You may need to change channels on the display to get the thermometer reading from the anemometer.
With the thermo/hygro sensor, you should locate it in an open area, away from buildings, and trees, inside the cover of a solar radiation shield for the most accurate data.
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looks like an Irox type station
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I know its a totally rubbish place for the rain gauge but my old gauge was in a worse place, ontop of a dog kennel, screwed to a brick by the side of the house, not level and that did a pretty good job, until a bad storm killed it... I should of drilled a few holes in the platform I made for the new gauge, because I have made a effort to get the platform level, so the water will just sit on the platform and rot the wood. I didnt think of that, damn.
I have checked the manual, and it says that temp by the wind direction on the main unit is "the temperature at place of anemometer"..... Now I have it up, night times the temperature is lower at the anemometer, then the one under the barn. But the one under the barn is quite sheltered but it works well there, as almost always the same as the temp on the tv forecast and its even screwed on to a brick wall, so thats bad also :lol:
So I don't know if having a temp sensor out in the open on the anemometer is actually going to be that bad,,, for night times anyways. But hot days maybe a different story as Im guessing it will get to 40c+ easy. I will just say thats what it feels like outside, if anyone asks.
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If the side of the mount for the anemometer we are looking at is due north, then temp reading may not be too bad, but if that wood heats up, it will throw off the thermometer readings as well.
I feel that rain bucket will get run-off from the roof, not to mention blockage from the building.
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Here's a better photo of the sensors and the rain bucket is quite a way out from the post that its screw onto. My measurements went a bit wrong on the frame making, because to get the bucket level the frame had to be wonky, but it does the job.
I might have to move my temp sensor thats under the barn because the main unit keeps loosing the signal for it :mad:
North is roughly top left in my first photo.
(http://i65.tinypic.com/o9h6dw.jpg)
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Does the water run-off from the roof fall into the rain gauge...if yes, that's bad.
I think most of the rain runs along the,,,,, ummm what they called, "groves in the tin roof" so most of the water runs in the other direction, left and right. Some could run in the rain buckets direction as the barn is slightly tilting that way I think.
Sorry I am useless at explaining stuff.
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if the wind and rain are coming from behind the shed, the shed is going to shelter the rain gauge
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If I need to move my temp sensor from under the barn, I am thinking about moving it to the post that I have the other sensors on and designing a kind of a sunscreen box, with slats on all sides and printing it out on my 3d printer in beige ABS plastic. Would that work?
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Does the water run-off from the roof fall into the rain gauge...if yes, that's bad.
In a downpour, I can't see how it possibly couldn't. Might as well put it under a gutter downspout.
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if the wind and rain are coming from behind the shed, the shed is going to shelter the rain gauge
That too.
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The rain of the roof will miss the bucket as its a good 10+inches away from the side, unless the rain has a running jump off the roof and into the bucket :grin:
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The rain of the roof will miss the bucket as its a good 10+inches away from the side, unless the rain has a running jump off the roof and into the bucket :grin:
Ten inches is absolutely nothing when speaking of run-off a roof under a downpour. I've literally had rain run off my roof and hit the ground at least 6 FEET away.
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Noway,,,, I will see how it goes, as I dont really want to move it if I dont have to, as I cant do it myself and have to get other people to help me out. I had a bit of rain last night 1.4mm, but another station about 10miles away had over 2mm. Every tip of the seasaw on my bucket is 0.7mm
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Noway,,,,
Really? I just made that up, right? Your remark is insulting. Fine. When all your neighbors get 10mm of rain and you get 1000............ :roll:
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No, I am just shocked.. sorry if it came across that way. :???:
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No, I am just shocked.. sorry if it came across that way. :???:
Thanks. All we're trying to do here is make your PWS better, as you requested. There is great wisdom on this board for just such a thing, whether you take it or not is obviously up to you.
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CW2274 is right. We are not trying to be arrogant or anything like that, we are just giving it to you straight, so you don't have to keep working over the same mistakes. It will save you a lot of headaches in the long run so that you can actually enjoy your weather station.
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It is kind of hard to tell from the picture, but it looks to me like Phil2010's rain bucket is on the "gable" side of the roof, not the eave. So at least the rain won't be running off the roof directly into the bucket. So if there is no wind he will probably get pretty accurate measurements. Still, it is not a good placement, but maybe not quite as bad as it seemed at first glance.
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I am in a wheelchair, so just getting all the sensors up has been a pain and struggle waiting for people to put it all up for me, and yeah all the sensors are probably in the wrong place, even the anemometer is because the vane spins around quite a bit, that wanted to be higher, but I have to try to make do. But if the sensors start to bug me with inaccurate data, I will try and get them moved. I think the most accurate data is the temp sensor thats under the barn and even thats in the wrong place :-(
So yeah I am very greatful for all what your saying and if I could mount the sensors my self, they would be properly place and id prob break my neck from doing it too... God if I was abled, I would be dangerous.. hehe
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Hey guys, I have just ordered myself a ip camera so I can view my rain bucket and anemometer on my pc instead of having to go outside all the time.. :-)
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Well its been quite warm and sunny today, the temp under the barn is 21.7c and the one on the anemometer is 26.7c and starting to drop now. So about 5-6c difference, Id thought the anemometer would of got alot warmer, as its being attacked by the sun?
The anemometer gets quite a few c lower at night then the temp sensor under the barn, So Im guessing the temp from the anemometer is more accurate then the one under the barn during the night times, as its not sheltered from anything?
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If you could get ya anny 10m in the air then i really do not think there would be a vast difference
in temp, this is perhaps why its in the anny, to get it away from any radiating heat, you have it
far too low, if you was close to me i have a 6m scaffold pole that would help and i feel it would
make a vast difference to your temp readings, not to mention the wind readings too, been some
great advice for you on here...
As for your "No way," reply, i took that as being :shock: (are you from the UK?) but it i very
easy to take something the wrong way with the written word because its hard to portray the
emotion that goes with it, emticons can make a lot of difference, for example, "no way" and No way :o "
Its more of a UK saying i think :) damn, i waffling, its my tablets lol anyway, carry on.... :D
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Thanks for your reply Bashy, do you mean the radiating heat comming off the roof as I am pretty sure the temp sensor is on the base of the anemometer and being blocked with the wooden post thats inbetween the roof and sensor. I am thinking about asking someone to move the post higher but would about half a meter make any difference to the wind vane, as its not very steady? But yeah I really wish I had some of you guys near where I live, to get it set up properly.
Yes I am from the UK and "no way" is like "no way, really, I didnt know that", so Im sorry if it offended, I do apologize.
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Thought you were :)
More of a, all radiating heat, gardens find it hard to get
To provide good enough ventilation due to buildings, out buildings, fences, hedges etc, theres a lot if eddying and any heat tends to stay longer, thats why some times it will feel why out the back or front at any given time.
I know this from experience, I have a largeish garden, but fences all round, I was struggling with my sensors reading 1 to 2C higher during the afternoon, even when I bought a Davis With a 24hr fan, still had a 1c issue, so,
I put the temp up on the mast, it's at about 13ft and about 7ft higher than my summer house roof, I have now eliminated that extra 1c, placement makes a big
Difference, if. Ya gonna have a weather station, ya might
As well try to get the best out of it, wind as high has you can, temp in shade or 24hr fan screen/sheild easy to make, and rain mounted a few inches above the lip of the fence.
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I have managed to get my wind sensor a bit higher up as the readings were all over the place before and not constant. But I am happy to say now that the readings seem to be much better now its higher up, just hope it doesn't wobble much when the wind picks up.. The pole was from my old wind sensor that was on the side of our house and it has taken 60+mph winds and a tornado, so its quite a strong pole.
(http://i63.tinypic.com/slp7ro.jpg)