[wxqc] rain gauge question

[Victor Engel]

I see a jumped to a conclusion I should not have jumped to. At
http://www.binoculars.com/products/peet-bros-ultimeter-pro-rain-gauge-36176.htmlthey
sell a lens cleaning fluid as an accessory to the unit, so I assumed
there must be a lens to clean. Now I'm wondering if rainwater is always
ionized enough to carry a current. It would have to be for this method to
work.

On 7/8/06, jim <jimwc at frontiernet.net> wrote:
>
>  the sensor is 4 "wires / contacts"  that the drop falls through and makes
> contact between at least 2 of them to "count" the drops. if you want to call
> this a "lens" Ok
> for lack of a better word. The reason I was wondering was we are in the
> "monsoon season" here and I had the Tru-Check mounted next to my Electronic
> rain gauge and it was measuring high, Electronic = .07, Tru-Check = .11.   I
> have since re-mounted the tru-check because I could not get it completely
> level next to my Electronic. I will see how close it is next time we have a
> T-storm come through. I am thinking the Electronic is more accurate as long
> as it is level.
>
> Jim
> CW4367
>
> -----Original Message-----
> *From:* wxqc-bounces at lists.gladstonefamily.net [mailto:
> wxqc-bounces at lists.gladstonefamily.net]*On Behalf Of *Victor Engel
> *Sent:* Saturday, July 08, 2006 8:58 AM
> *To:* Discussion of weather data quality issues
> *Subject:* Re: [wxqc] rain gauge question
>
> I'm new to the electronic weather station business, but it seems to me
> that a Tru-Chek gauge will not be a very good way to calibrate. It's surface
> area is very small and consequently the precision is low.
>
> Siting is also very important. An accurate rain gauge is only as accurate
> as the location/shelter where it's placed.
>
> Reading up on your gauge, it looks like it works by funneling all rain
> into a drop counter. I suppose this would be dependent upon the cleanliness
> of the lens that senses the drops as well as the surface tension of the
> water. I bet if you washed your gauge with Dawn dishwashing detergent and
> didn't rinse completely, your gauge would be way off. I wonder how much the
> surface tension of rainwater actually varies....
>
> I'm just brainstorming here....
>
> On 7/8/06, jim <jimwc at frontiernet.net> wrote:
> >
> >  to any one
> >
> > I was issued a Tru-Chek Rain gauge by the storm spotter coordinator in
> > my area. My question is: is it accurate enough to calibrate my Electronic
> > rain gauge to.
> > My electronic rain gauge is a Peet Bros .01" pro rain gauge. or should I
> > invest in a different type for calibration purposes.
> >
> > Jim
> > CW4367
> >
> >
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> >
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> >
> >
>
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