I did a test recently as I reshuffled the things in my electronic dry cabinet. What I discovered is very surprising.
After I turned on the dry cabinet's dehumidifier, the humidity drops to quite low, almost 40%. Instead of adjusting the knob, I decided to turn off the power.
Fro many hours, the reading remained at 40% Does that mean the cabinet is really air-tight?
I did open it to take and keep things. The humidity increased a little, to say 45% or so. And it remained there for a few more hours. And the next day after I came back home, I noticed the reading went back to about 40%!!
I really don't understand. Is there such a thing? I have 2 external hygrometers and 1 in-built hygrometer attached to the dry cabinet. The 2 external ones read about 40% +/- 5% while the dry cabi's one reads 55%. I tend to trust the external ones more.
But in any case, all 3 hygrometers are showing acceptable humidity levels (<60%) even though I have cut off power for 2 days and I did open the cabinet at least twice!
Note the cabinet is not in any air-con room. Just in a typical Singapore home.
Not sure if anyone care to repeat this simple test... I'm still investigating.
After I turned on the dry cabinet's dehumidifier, the humidity drops to quite low, almost 40%. Instead of adjusting the knob, I decided to turn off the power.
Fro many hours, the reading remained at 40% Does that mean the cabinet is really air-tight?
I did open it to take and keep things. The humidity increased a little, to say 45% or so. And it remained there for a few more hours. And the next day after I came back home, I noticed the reading went back to about 40%!!
I really don't understand. Is there such a thing? I have 2 external hygrometers and 1 in-built hygrometer attached to the dry cabinet. The 2 external ones read about 40% +/- 5% while the dry cabi's one reads 55%. I tend to trust the external ones more.
But in any case, all 3 hygrometers are showing acceptable humidity levels (<60%) even though I have cut off power for 2 days and I did open the cabinet at least twice!
Note the cabinet is not in any air-con room. Just in a typical Singapore home.
Not sure if anyone care to repeat this simple test... I'm still investigating.