Well thanks for the info I did wonder that it's probably be different. Thanks again Not sure where that leaves me
On Thursday, 19 November 2020 at 18:20:36 UTC [email protected] wrote: > From my knowledge, the answer is no. > > The Davis uses pulses to signal wind speed, and the Peet Bros does, too. > > The major difference is that the Davis uses the much more traditional > potentiometer to deliver a voltage and the ISS reads that to convert to a > wind direction. > > The Peet Brothers does something much more difficult and very different. > It times when one of the magnets makes or breaks and then depending upon > the time until it pulses again, determines the angle of rotation through > which the wind speed magnet has rotated, simplified explanation. > Therefore, if there is no rotation of the wind speed magnet, there cannot > be a determination of which direction the vane is pointing, unlike a > no-wind condition for a Davis, which of course will give a voltage on the > wind direction sense line. > > Very odd, but seems to work for them. If you go to Davis's web site, > there is a better explanation of how they designed their unit. It > certainly gets rid of the potentiometer and it wearing out, but the timing > circuitry to measure the angle has to be a bit more complicated. > Dale > > > On Thursday, November 19, 2020 at 3:00:46 AM UTC-6 [email protected] > wrote: > >> >> Hi Guys, anyone know if you can use a davis wind vane on a ultimeter 2100? >> My wind vane has broken again, this one didn't last long (about 6 months, >> 1 year maybe) >> It's difficult and expensive to get these in the UK, have to import etc. >> >> So would like to try something else instead. >> > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/9804ff37-c8ad-4318-b46b-16752124c57en%40googlegroups.com.
