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Wind Direction

Discussion specific to Fine Offset and similar rebadged weather stations
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apenwith
Posts: 418
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Wind Direction

Post by apenwith »

Hi Steve

I have just replaced my direction unit (the bearing seized) and for some reason it is showing the wind 180° out - and yes it is installed correctly as the previous one was. Mayb this is a new design ?? If I compensate with a -180 calibration will this work for bearing of less than 180.

Regards

Alan
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steve
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Re: Wind Direction

Post by steve »

I don't understand how the console can be showing the correct direction but giving Cumulus a value that's 180 degrees out. That would surely require different console firmware, and you've only changed the wind sensor? But yes, you can use a 180 degree offset (probably better to use a positive 180 rather than negative).
Steve
apenwith
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Re: Wind Direction

Post by apenwith »

Thanks Steve

The console is also 180° out - I did put an aluminium tail extension on but I can't see that would affect the reed switches. It could of course just be a faulty unit as it has only shown SE (really NW) so I'll have to wait for the wind to change.

Regards
Alan
AllyCat
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Re: Wind Direction

Post by AllyCat »

Hi Alan,

Did you put a compensating weight at the front and/or is the axis absolutely vertical? Can you see which way the vane is actually pointing?

You might be able to check the resistance of the sensor unit with a multimeter and compare that with the values posted by Gina at the end of this page. I believe that SW8 points North.

Cheers, another Alan.
apenwith
Posts: 418
Joined: Sun 26 Apr 2009 7:30 pm
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Location: West Cornwall UK
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Re: Wind Direction

Post by apenwith »

Hi
Thanks for that - it looks as though SE could have a high resistance so it could be I have a high resistance in my cable connections which is skewing things (the wind sensors are about 15M away from the transmitter) - but the weather and the light are against me looking today.

Regards

Alan
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MickinMoulden
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Re: Wind Direction

Post by MickinMoulden »

If it's made in China they may have placed the out 180 out or the sensors 180 out. Maybe they were doing upside down Tai Chi in the factory :lol: . Do you feel like reassembling it (if you ever view the console)?
Michael, Palmerston, NT Australia www.Palmerston-WeatherImageNo image? I'm offline!
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