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How does the rainfall gauge work? WH3081

Posted: Tue 17 Jan 2012 4:10 pm
by Feek
Being an inquisitive type, I'm intrigued to know how the rainfall gauge on the WH3081 (and clones) works. It's a box with a little hole on the top and I noticed that I get rainfall indication when the box is moved, hence why I've changed the mounting place to somewhere more secure. No more false readings.

It doesn't feel as though there's a tip mechanism there so can anyone explain how the thing actually does what it does and measures rainfall please?

Thanks.

Re: How does the rainfall gauge work? WH3081

Posted: Tue 17 Jan 2012 4:13 pm
by steve
It's a 'tipping bucket' which operates a reed switch. See https://cumulus.hosiene.co.uk/viewtopic.php?f=13&t=2685

Re: How does the rainfall gauge work? WH3081

Posted: Tue 17 Jan 2012 4:17 pm
by Feek
Oh my, how simple is that. Thanks Steve :)