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<DIV><FONT face=Arial>That web site states "The differential between =
the on and
off points is fixed at 5% RH", which means the environment will vary 5%, =
depending on where it is in the on/off cycle. A decent thermostat will =
keep the
environment within a degree or so and thus keeps the RH next to =
perfectly
constant. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>I had considered this subject humidistat and =
others also.
I'm glad I stuck with the simple thermostat. It reall is easy to use and =
works
very well.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Terry Farrell</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>----- Original Message ----- =
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>>> I found this humidistat that I =
would use
for a wood conditioning box <BR>>> that seems to be fairly good =
but
expensive ($290). Anyone have any <BR>>> experience with it =
or can
you suggest one that works as well for less <BR>>> $$$. =
It’s the RHC
that I’m looking at—scroll down to the second unit. <BR>>> =
<BR>>>
</FONT><A href="http://www.greenair.com/humidistat.htm"><FONT =
face=Arial
size=2>http://www.greenair.com/humidistat.htm</FONT></A><BR><FONT =
face=Arial
size=2>>> <BR>>> David Love<BR>> <BR>> <BR>> If =
you're
conditioning wood for soundboard building, +-5%RH is <BR>> pretty =
miserable
accuracy. If you set it at 30%RH and 90°F looking <BR>> for 6%MC, =
you could
get anywhere from 5.2%-6.7%. Of course, if <BR>> that's just =
calibration
accuracy, and repeatability within a narrow <BR>> range is good =
(which they
never seem to think is important enough to <BR>> mention) you can =
offset the
reading and be pretty close. I assume <BR>> that's what the mentioned =
5% "set
differential" is for. So even a <BR>> cheap humidistat can work well =
if it
makes the same mistake with <BR>> dependable repeatability.<BR>> =
<BR>>
Ron N<BR></FONT></DIV></BODY></HTML>