[CAUT] Hygrometers

[Porritt, David]

Paul:

 

I have an Amprobe
<http://amprobe.com/cgi-bin/pdc/viewprod.cgi?pid=1426&tid=1&type=elec>
and this is my second one.  It's pretty accurate yet easy to carry.   I
tune periodically at our large museum and they have some very accurate
and expensive graphing hygrometers in several places in the museum.
I'll compare my reading to theirs when I'm there and when it differs
significantly I'll get a new one.  They all drift and need to be either
replaced or recalibrated.  On this one, recalibrating is more expensive
than buying a new one so I just replace it.

 

dave

 

____________________

David M. Porritt, RPT

dporritt at smu.edu <mailto:dporritt at smu.edu> 

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Paul T Williams
Sent: Thursday, November 15, 2007 1:42 PM
To: caut at ptg.org
Subject: [CAUT] Hygrometers

 


Hi List, 

I have a couple of those cheap  max-min thermo-hygro readers from
Pianotek.  I'm not sure if they're very accurate.  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? 

Thanks 

Paul T. Williams RPT 
UNL

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