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Old 01-25-2010, 11:07 AM   #1
Wharf Rat
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Default Re: heartfelt beads and hygrometer calibration

Quote:
Originally Posted by timatraw View Post
Im having a heck of a time getting an accurate calibration reading for my stinking hygrometers. Is it possible to use a cap full of 65% beads (half wet with distilled water) in a tupperware with the hygrometers and get an accurate reading? I am guessing that the RH should be 65% after 24 hours or so.
Will this work?
Has anyone tried this calibration method with success?
Thanks.
Tim
Well, the salt test is actually a calibration method that relies on some fundamental science. Its like using boiling and freezing water to calibrate a thermometer. The temperatures are known constants.

If you calibrate using the beads, than your hygrometer is basically calibrated using the same thing you're measuring. Its not independent.

Bob
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