So I take it that Davis only now supply ONE tipping bucket range for
imperial measurement only and the metric is just a mathematical
conversion? I 'm sure when I bought my WM11 they used to have two
variants.

Must admit I still think mine under reads, I often try to get some
comparison with Shoeburyness, but being 6 miles away is not realy the
best way.

As was mentioned on a previous thread and I'm sure you would have
looked into this. Spurious readings can be a problem, I sorted mine
out by buying a surge protection socket(s).


Keith (Southend)

***********************
Weather Home & Abroad
http://www.southendweather.net

On Sun, 3 Oct 2004 20:03:31 +0100, "Will"
wrote:


================================================= ===================
This posting expresses the personal view and opinions of the author.
Something which everyone on this planet should be able to do.
================================================= ===================

As a postscript to my previous post.

I recorded 18.7 mm manually and 18.0 mm on my Davis VP.
Both instruments are set up OK (ie level, away from obstructions etc).
The quoted accuracy on my Davis for rainfall is +/- 4% .
4% of 18.0 mm is 0.72 mm, so it is operating perfectly accurately within the
manufacturers specs. Also what is my error in my measuring rainfall with a
tapered measuring cyclinder ? (I like to think I'm careful but it is so easy to
make mistakes).

I must say, I am extremely pleased with the performance of the VP so far (all of
one day :-) ) and as with all scientific instruments one must be fully aware of
their limitations.

Will.