[Weather] conversion help

[Frank Smith]

In my experience from back in the days when I wrote software for
custom data collection systems, it was much easier to calibrate via
software than making changes to the hardware.  As a bonus, it enabled
you to easily retroactively recalibrate previous data if you discovered
that your calibration was off (assuming you store the data as raw
counts and not in displayed units).
   Don't most of the 1-wire weather software packages allow you to
set multipliers to adjust the various input data?

Frank

Bitson Tim wrote:
> 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.
> 
> I am presently using the RainWise gauge supplied from Hobby-Boards.  
> It worked great out of the box and does have adjustments.
> 
> Tim
> Weather Toys - The Book
> 
> 
> 
> On Nov 16, 2006, at 3:17 AM, Mark J wrote:
> 
>> MIME-Version: 1.0
>> Content-Type: text/plain; charset=us-ascii
>>
>> In message <026301c708ef$72256dd0$6700000a at main>
>>           "Matt" <mjoyce at iinet.net.au> wrote:
>>
>> If it's a La Crosse 7048, they used to /say/ it was .01" per tip, but
>> I did a 1000ml test over 70 minutes with a data logger, and it was
>> .021" (0.532mm); 100 pulses to their display showed .0204" per tip. La
>> Crosse were not interested, and neither were Meteoroligica, who
>> supplied it.
>>
>>> Hi all,
>>>
>>>
>>>
>>> The rain gauge I have say each tip is 0.01 of an inch, so is that  
>>> 0.25 of a
>>> mm per tip ?
>>>
>>> The thing is it just doesn't seem to tip as much as I though it  
>>> would.
>>>
>>>
>>>
>>> During apparently heavy rain, it only tips 4 times, that's only 1 mm.
>>>
>>>
>>>
>>> Is there any sensible way to test it ?
>>>
>>>
>>>
>>> Thanks
>>>
>>>
>>>
>>> Matt
>>>
>>>
>> -- 
>> E.Mark Jolliffe
>> www.poppy-land.co.uk