On 31/12/2016 14:59, JohnD wrote:
"Norman Lynagh" wrote in message ...

I solved the
problem by replacing the temp/RH sensor with one of the new 'enhanced'
sensors
which are supposedly more accurate. It has all been working fine since
then.

If anyone wants more detail on the *digital* T/H sensors in the Davis
VP2 and Vue stations then a detailed description is included in the
following topic on the Davis knowledgebase that we maintain:

http://www.manula.com/manuals/pws/da...midity-general


NB1 This isn't really intended as light reading but the details are
there if you need them!

NB2 All pre-2006 Davis stations (ie WMII / VP1 / early VP2 models) used
an *analogue* T/H assembly which, sad to say, is no longer available
from Davis. Supplies were maintained well beyond the 5-year period which
is Davis policy for the continued availability of spares after the end
of production of particular models, but that stockpile is now totally
exhausted. Occasionally spares may turn up eg on eBay and similar sites.

John Dann
www.weatherstations.co.uk

Sounds like my options a
1. Forget about the hunidity/dew point
2. Get a new system
--
Keith (Southend)
"Weather Home & Abroad"
http://www.southendweather.net
Twitter:@SS9Weatherman