[CAUT] temp/humidity swing puzzler

[John Minor]

Eric,

Good guess, but it's not a light on the desk. We usually keep ours out of sight as well, but I had a specific reason for leaving it on TOP of the piano.

John

---- Original message ----
>Date: Mon, 5 Feb 2007 15:46:55 -0500
>From: "Wolfley, Eric \(wolfleel\)" <WOLFLEEL at UCMAIL.UC.EDU>  
>Subject: RE: [CAUT] temp/humidity swing puzzler  
>To: <jminor at uiuc.edu>, "College and University Technicians" <caut at ptg.org>
>
>Hi John,
>
>It makes me a little queezy just looking at that chart! 
>
>Does the prof have a high intensity halogen light on the desk which
>might be affecting the data logger? Of course the Relative Humidity goes
>down when the temp goes up because warmer air can hold more moisture. 
>
>We keep our data loggers underneath the piano on top of the rear leg
>plate or on a brace so nobody will mess with them.
>
>Eric
>
>Eric Wolfley, RPT
>Head Piano Technician
>Cincinnati College-Conservatory of Music
>University of Cincinnati
>
>-----Original Message-----
>From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
>John Minor
>Sent: Monday, February 05, 2007 2:41 PM
>To: caut
>Subject: [CAUT] temp/humidity swing puzzler
>
>Here's a chart from a DICKSON DATALOGGER on a Steinway B music desk in
>one of our teaching assistant studios. Can anyone guess what's going on
>with the wild swings in temp and humidity?
>
>John Minor
>University of Illinois