[wxqc] Dew Point calibration

[Sam Drinkard]

Hi Jack,

Looking at your graphs, I'd say you should maybe tweak the humidity up 
by one degree, let it settle in for a few days, or until you get a 
semi-stable pattern over you. If things are still running low, tweak it 
up a little bit more, depending on how far off, but in any event, what 
you want to do is make changes in small increments, wait for a period, 
check it, then if necessary, adjust again.

I've got the WM-II, so I have nothing I can tweak exept via the console, 
and that's what I do (I do cheat and use weatherlink's setup mode) then 
just watch things. With such unstable conditions over me right now, I'm 
seeing rather large changes from the std deviation, but I don't worry 
about it. The long term averages are still very good in my book.

Hope this helps some...

Sam

Jack J. Mowers, CLU, ChFC wrote:

> I’m trying to dial in my dew point calibration. I’ve had my station up 
> and running for almost a month. I’ve got the barometer, and 
> temperature calibrated pretty well. (I think) I just can’t get the dew 
> point figured out. I have a Davis Vantage PRO2. I can’t calibrate the 
> dew point, but I can calibrate the humidity. Yesterday, I moved the 
> humidity up 2 points. Today I checked the quality control 3 day graphs 
> and the numbers are slightly worse. I was wondering if anyone could 
> tell me which way I need to move the humidity in order to get the dew 
> point numbers in line. Below is a link to my 3 day numbers: Thanks. Jack
>
> http://weather.gladstonefamily.net/site/C5283?tile=10;days=3#Data
>
> Jack J. Mowers, CLU, ChFC
>
> Office: 949-454-2994
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> Fax: 949-454-2997
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> Email: jackmowers at hotmail.com <mailto:jackmowers at hotmail.com>
>
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>
> 26741 Portola Pkwy Ste 1E #514
>
> Foothill Ranch, CA 92610
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