[Weather] conversion help

[Bitson Tim]

Steinar,

I'm not sure opening the orifice changes the calibration. The tipping  
buckets still measure the same amount of water, they just fill faster.

Tim Bitson
Weather Toys - The Book
http://www.weathertoys.net


On Nov 16, 2006, at 8:34 AM, Steinar Midtskogen wrote:

> [Bitson Tim]
>
>> How odd. I just opened up my LaCrosse rain gauge I got from AAG -
>> you're right! It doesn't have any adjusts either. I never used this
>> one so I didn't notice before.
>> Since the count is low, you could try to "shim" the stops to increase
>> the count. On mine, there is a flat plastic piece that the tipper
>> hits on both sides. If you raise that a bit, the tipper doesn't
>> travel as far and may tip easier (giving you more tips for the same
>> amount of water). What comes to mind is a long screw attached to the
>> base with back-to-back nuts. The head of the screw hits the bottom of
>> the bottom of the tipper about where the plastic stop is. Adjust the
>> screw up and  see if the counts increase.
>
> A better way is to increase the orifice.  I did this by using a petrol
> funnel leading into the LaCrosse.  I have a description how it may be
> done here:
>
>  http://voksenlia.net/met/prec.php
>
> -- 
> Steinar
>
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