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<DIV><FONT face=Arial size=2>Dang!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>br</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=jcgrassi@earthlink.net href="mailto:jcgrassi@earthlink.net">Jeannie
Grassi</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=ed440@mindspring.com
href="mailto:ed440@mindspring.com">'Ed Sutton'</A> ; <A title=caut@ptg.org
href="mailto:caut@ptg.org">'College and University Technicians'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, November 15, 2007 8:50
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [CAUT] Hygrometers</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hi Ed, Paul, et
al,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I recently bought one
of the “Professional” hygrometers from Pianotek because I had heard the same
comments from several other people. Well, for the past two months I’ve
been using it side by side along with a Dampp-chaser hygrometer a/o ones that
my clients happen to be using. I’d like to say that the small difference
in RH that it reads hardly amounts to anything. AND……it takes quite a
while (like five minutes) to settle down and give an accurate reading from
what it registered in my case, in my car, traveling from the last
appointment. <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">At first I would
smugly take a reading off of it immediately and was surprised at what a
different result it gave from what was in the piano. I congratulated
myself on upgrading my tool and being a true “professional. However, one
time I just let it sit there while I was tuning and noticed how much it
changed until it ended up with almost the same as the one in the piano.
I observe this every day now. And I’m asking myself why I spent all of
that extra money. One client proudly showed me his thermo-hygrometer
(with memory) that he bought at Walmart for $6. It read the same as my
fancy-schmancy “professional” one. <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Comments?
;>)<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">jeannie<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Ed Sutton<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thursday, November 15, 2007 3:05
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> College and University
Technicians<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re:
[CAUT] Hygrometers</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">How about the "Professional" meter
that Pianotek sells?</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I like it because it reads quickly
and reads lower RH than the Radio Shack
types.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I haven't compared it to a sling
psychrometer. The sling psychrometers I have found were rather
expensive.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Ed
Sutton</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<BLOCKQUOTE
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: black 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">----- Original Message -----
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV style="font-color: black">
<P class=MsoNormal style="BACKGROUND: #e4e4e4"><B><FONT face=Arial
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A
title=john@musselwhite.com href="mailto:john@musselwhite.com">John
Musselwhite</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A
title=caut@ptg.org href="mailto:caut@ptg.org">College and University
Technicians</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
Thursday, November 15, 2007 4:41 PM<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Re:
[CAUT] Hygrometers<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">At 12:42 PM 11/15/07, Paul
wrote:<BR><BR><BR><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=2><SPAN
style="FONT-SIZE: 10pt">Hi List,</SPAN></FONT> <BR><BR><FONT size=2><SPAN
style="FONT-SIZE: 10pt">I have a couple of those cheap max-min
thermo-hygro readers from Pianotek. I'm not sure if they're very
accurate. </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><BR>They're more accurate than the Radio Shack ones,
but I don't think by much.<BR><BR><BR><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=2><SPAN
style="FONT-SIZE: 10pt">If you all remember, last fall/winter I sent in some
photos of one of our recital rooms that Richard West took before I got here
with the fog and water dripping all over everything. It hasn't been
that bad since I've been here, but the last couple of times I've gone in
there this past week, it feels really muggy, but the hygrometer only
registers 40-45% (which would be ideal). Any suggestions on who makes
a real accurate reader?</SPAN></FONT> <o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><BR>We have the opposite problem here where Rh can
be down into the single digits in mid-winter. None of the "standard"
humidity gauges go down that far. I use a Cooper Digital Psychrometer much
like the one down the page at <A
href="http://www.techinstrument.com/acatalog/Hygrometers__RH___humidity_.html"
eudora="autourl">http://www.techinstrument.com/acatalog/Hygrometers__RH___humidity_.html</A>
(SAMJR995). It's a digital version of a "sling psychrometer", the
wet/dry bulb unit we use to make truly accurate RH readings. While it's
supposedly accurate +-5% it still reads down to zero Rh which in worst case
might actually be 5%. I've read as low as 3% in mid-winter here in some
churches. In those pianos with DC's installed, sticking it under the rim for
a minute and pressing the "hold" button shows it's in the 40-43% range at
the soundboard even with extremely low humidities outside the
instrument.<BR><BR>I also have a USB recording hygrometer that will track
the RH and temp over a long period of time. It's at <A
href="http://www.measurementcomputing.com/cbicatalog/USB-502.asp?dept_id=414&pf_id=1759"
eudora="autourl">http://www.measurementcomputing.com/cbicatalog/USB-502.asp?dept_id=414&pf_id=1759</A>
. It reads very much like the "standard" units and differs from the
Psychrometer's readings. I trust the Cooper more for truly accurate
readings.<BR><BR><X-TAB> </X-TAB><X-TAB>
</X-TAB>John<BR><BR><BR><o:p></o:p></SPAN></FONT></P><X-SIGSEP>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center></X-SIGSEP><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">-------------------------------<BR>John Musselwhite,
RPT - Registered Piano Technician<BR>Musselwhite Piano Services
- <st1:place w:st="on"><st1:City w:st="on">Calgary</st1:City>, <st1:State
w:st="on">Alberta</st1:State> <st1:country-region
w:st="on">Canada</st1:country-region></st1:place><BR>Office/cel (403)
246-7717 Fax (403) 255-5268<BR>Outside of <st1:City w:st="on"><st1:place
w:st="on">Calgary</st1:place></st1:City> call Toll Free:
1-866-95-PIANO (1-866-957-4266)<BR>"Three Generations of
Experience"<o:p></o:p></SPAN></FONT></P></BLOCKQUOTE></DIV></BLOCKQUOTE></BODY></HTML>