Hygrometer

[Farrell]

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The little cheapies seem to run in the +5% RH accuracy range. That is =
too inaccurate for drying a board (I think!). With that inaccuracy, if =
one were shooting for a moisture content of 6.5%, the best you could do =
is to get it somewhere between 5.8% and 7.2% moisture content. I would =
like to get it closer to target than that. The site you gave seems to =
only have moisture meters. They generally have a range that only extends =
down to 6% mc at the low end. Instruments like these generally get =
somewhat inaccurate at the extremes of their range. I think I will be =
better off using a relative humidity measuring device. One with RH =
reading accurate to within +2% will get me to within a mc of 6.2% to =
6.8% if my target is 6.5%.

Hey Del or Ron, is +3% mc good enough when drying a board down to =
produce "consistent" results?

Terry Farrell

----- Original Message -----=20
From: "Nichols" <nicho@lascruces.com>
To: <pianotech@ptg.org>
Sent: Wednesday, August 28, 2002 10:16 PM
Subject: Re: Hygrometer


> Terry,
>          Radio Shack's little $24-ish  job is fine for most purposes. =
For=20
> hot box, or other higher-end uses, try http://www.lignomat.com/
>=20
> Have fun,
> Guy
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>=20
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> At 09:25 PM 8/28/2002 -0400, you wrote:
> >Anyone have a good recommendation for a relatively low cost, high =
accuracy=20
> >hygrometer? It appears that a reasonably priced unit can be had in =
the +2%=20
> >RH accuracy range. Any really nice units out there that I should be =
aware=20
> >of? I should think one with a separate probe would be essential for=20
> >hot-box use. What do ya'll use? Thanks.
> >
> >Terry Farrell
> >
>=20

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