<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:v = "urn:schemas-microsoft-com:vml" xmlns:o = "urn:schemas-microsoft-com:office:office" xmlns:w = "urn:schemas-microsoft-com:office:word" xmlns:st1 = "urn:schemas-microsoft-com:office:smarttags"><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.6000.16544" name=GENERATOR><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="country-region"></o:SmartTagType><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State"></o:SmartTagType><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City"></o:SmartTagType><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"></o:SmartTagType> <STYLE>  </STYLE> </HEAD> <BODY lang=EN-US vLink=blue link=blue bgColor=white> <DIV dir=ltr align=left><SPAN class=227491603-16112007><FONT face=Arial color=#0000ff size=2>So, where in Walmart does one go to find such a thing?   And is there anyone there who would know what a "thermo-hygrometer" is?</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=227491603-16112007><FONT face=Arial color=#0000ff size=2>thanks</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=227491603-16112007><FONT face=Arial color=#0000ff size=2>les bartlett</FONT></SPAN></DIV><BR> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left> <HR tabIndex=-1> <FONT face=Tahoma size=2><B>From:</B> caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] <B>On Behalf Of </B>Barbara Richmond<BR><B>Sent:</B> Thursday, November 15, 2007 9:07 PM<BR><B>To:</B> College and University Technicians<BR><B>Subject:</B> Re: [CAUT] Hygrometers<BR></FONT><BR></DIV> <DIV></DIV> <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><BR> <P><FONT size=2>No virus found in this incoming message.<BR>Checked by AVG Free Edition.<BR>Version: 7.5.503 / Virus Database: 269.15.32/1131 - Release Date: 11/14/2007 4:54 PM<BR></FONT></P></BODY></HTML>