Humidistat Performance

[Don]

Hi Terry (the male!)

What are you using to measure humidity levels? The very *best* gauges for
humidity are normally rated at + or - five percent, and then only in the
range of 30 to 40%. As you get farther from the center the tolerance on the
guages becomes much worse.

At 10:16 AM 3/8/00 -0500, you wrote:
>Hello List:
>
>I have been monitoring performance of DC humidistats in my shop. I am
>finding that the relative humidity (RH) on-off points for the humidisats
>(dehumidifier outlet) are in the 55% to 65% range, rather than somewhere
>centered around 42%. I have done my field testing using several different
>humidistats. Has anyone else monitored the performance of humidistats? I am
>having trouble understanding why my observations would vary so much from
>what I understand to be advertised.
>
>Terry Farrell
>Piano Tuning & Service
>Tampa, Florida
>mfarrel2@tampabay.rr.com
>
>
>
Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.
Tuner for the Saskatchewan Centre of the Arts
drose@dlcwest.com
http://donrose.htmlplanet.com/

3004 Grant Rd.
REGINA, SK
S4S 5G7
306-352-3620 or 1-888-29t-uner