WX200 anemometer failure?

[Phil Pedersen]

For some reason, my spam filter put these messages in junk with a 
spam score of 1 (>50 is the trigger to go into junk).  Very strange.

Thanks James.  There's also some discussion about treating the rain 
sensor for ESD problems with a pull-up somewhere.  I vote for the 
Hall effect.  I'll see what Digi-key has.

Phil


At 7:57 AM -0500 1/2/08, James Sentman wrote:
>On Jan 2, 2008, at 7:20 AM, Phil Pedersen wrote:
>
>>The anemometer on my WX200 has started reporting the wind speed 
>>intermittently.  It'll work for a few hours and then stop reporting 
>>for another few hours or days.  I've checked the wiring and the 
>>voltages, so I assume it's the reed switch in the sensor.  These 
>>have a life of about 10^7 operations and this is pretty close to 
>>what I'd expect in seven years of use.
>>
>>Has anyone replaced one of these switches?  Digi-key has similar 
>>one for a couple of $ so it shouldn't be too hard to get parts and 
>>do the replacement, but I'd like to know it's actually do-able 
>>before I start.
>>
>>I could probably replace the reed switch with a Hall-effect sensor 
>>(and do the same to the switch in the rain sensor), but that seems 
>>a little like overkill.
>>
>>Phil
>
>Hi Phil,
>
>I haven't taken apart the anemometer on mine, but if it's as simple 
>in design as the rain sensor and other parts replacing the reed 
>switch should be pretty easy. My rain gage has never worked reliably 
>so if you plan to upgrade to a hall effect sensor I'd love to hear 
>about the details when you're done.
>
>Thanks,
>  James
>
>
>James Sentman                       http://sentman.com 
>	http://MacHomeAutomation.com