Phil - I’m finding out more myself, apparently we might have to get to an earth on the hygro unit - the field hub. i will dig into this site to find the references that lie within including photographs.
Later
Graeme
Aha - I found one of them…
http://discourse.weather-watch.com/t/29918 by Ricky himself,
and a link to Kenneth Lavrsen’s project…
http://www.lavrsen.dk/sources/weather/windmod.htm
but there is another I need to find too…
Ahhh …
http://discourse.weather-watch.com/p/233965
but it does not relate much to what we intend to do. Hmmm, now to work out which the yellow connects to on the hygro and whether that is relative to the output cable to the main console inside. But there is less need for that cable to be earthed to the hygro centre device.
I will ask Ricky tomorrow.
Graeme