Hygro-thermometer

[Ted Rohde]

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David Skonik wrote:

Lab Safety Supply (800 543-0783) has a unit for $420 that may help you.  =
It's called a Mini-Drum Hygrothermograph, by Oakton.  Catalog #9A-49438. =
 Their web site is www.labsafety.com  .   What kind of problems are you =
having?

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    This piano is checked and serviced every week as are all our major =
instruments.  Over the past eleven years it hasn't varied more than 3-4 =
cents as the room is kept at 72 degrees, 40 per cent all year 'round.  =
The past seven weeks, however, there has been a 10-12 cent =
variation...one week a little flat, next some sharp.  My instinct is =
that there is a defect in the HVAC system somewhere, but I'm told by the =
maintenance folk that it has remained constant as usual.  I have left my =
hygrometer for 24 hour periods and, in fact, there is no major =
variation.  My problem is that the piano is 150 miles from where I live =
and I can't take daily readings.  Therefore, the question about a =
hygrometer that would provide a digital read-out over a number of days.  =
I KNOW this piano.  There's nothing wrong with the instrument as far as =
I can tell.  I also know the maintenance people and they're not "blowin' =
smoke" at me.  They're taking me seriously and are nice guys that I talk =
to all the time.  I just suspect that there is something happening that =
they're not catching. =20
    That's my problem...and thanks for asking.  I'm kind of perplexed =
and want to find the solution.

Ted Rohde
Central Illinois     =20




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