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  1. Home
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  3. temperature and humidity inside a refrigerator

temperature and humidity inside a refrigerator

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  • N Offline
    N Offline
    NeverDie
    Hero Member
    wrote on last edited by
    #1

    I put one of my new si7021 temperature-humidity sensors inside my refrigerator, and I was shocked to see just how high the humidity gets in there between the cooling cycles. Is this normal?
    0_1511012152069_refrig_temp_humidity.png

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    • N Offline
      N Offline
      NeverDie
      Hero Member
      wrote on last edited by
      #2

      Here's the graph (well, the last hour anyway) of the temp-RH node in a defective freezer that's in need of repair. It stays plenty cold there, but the humidity never drops as it does with the functioning refrigerator (above):
      0_1511047050139_defective_freezer.png

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      • N NeverDie

        I put one of my new si7021 temperature-humidity sensors inside my refrigerator, and I was shocked to see just how high the humidity gets in there between the cooling cycles. Is this normal?
        0_1511012152069_refrig_temp_humidity.png

        Y Offline
        Y Offline
        Yveaux
        Mod
        wrote on last edited by
        #3

        @NeverDie It looks to be what can be expected after googlin' a bit; e.g. https://openawg.github.io/2016/04/19/first-test-chamber-constructed.html
        Opening the freezer's door will further disturb things (did it stay closed in both charts?)
        Were both measurements aquired using the exact same si7021 sensor?

        http://yveaux.blogspot.nl

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