Red Raspberry wrote:I've had the Davis anemometers for over 20 years now. The only improvement to them over the years is the orientation of the reed switch, there is also a molded in drip edge on the newer wind cups.. For 5 years I used to old Weather Monitor II style on my Vantage Pro 2 station with no problems.
Last year I started having a problem and changed out to the Vantage Pro 2 style and it worked for awhile. Then quit working again last week. I had to change out the transmitter.
That being said the Davis techs were clueless on the compatibility of the two anemometers and insisted the older style would not work with the Vantage Pro 2. And they are wrong. They will send you a push button switch you can plug into the wind port on the transmitter. With this you can test the transmitter as each press is the same as the reed switch opening and closing.
Strange you had so much dirt in there as mine do not have any. The bearings are ball bearings and probably cost under $10 retail. I should disassemble one of my old ones as I have many small bearings here. Maybe I can find one that fits.
Is the wind cup positioned on the shaft correctly?
You should know all about Davis anemometers then!
Whilst Davis may send out things to their US customers there's no chance for us Brits or anyone else outside the States. You're very lucky.
Yes, I don't understand why it was so dirty inside. I don't live in an urban area and there is no industry near me. Roads and traffic of course but also plenty of fields. As far as it being positioned correctly the instructions are pretty simple. Push it up and tighten the allen screw. It should drop slightly when released. It does.
Haven't heard back from my UK supplier yet but shouldn't be too long now. No rush as the returned one will become a spare.