Hydra and 3,000 count cabinet and beads -- HELP!

[MikeyC]

Originally Posted by BengalMan

How do you calibrate the hydra? Just take take the top off and lock it in a tupperwear and salt test like usual? I guess I could also put it in a container with 65% beads for a few hours and see what it reads.

It's hard to put the Hydra in a "sealed" environment like a plastic bag or tupperware since it has to be plugged in and the fan may fun and the alarm may go off while you're calibrating. Instead I just put a digital hygro that I know is calibrated correctly next to it in the humi and then adjust the Hydra to read the same after a day of sitting next to each other. Then I check them both a day later to make sure they're still in sink. I repeat this process until they consistently read the same RH %.

Originally Posted by BengalMan

Ok, since adding the sponges and all the beads and setting the Hydra to 65, the hygro on the Hydra is now reading at 67.8 and the damn fan has turned off for the 1st time since I've owned it. I think at this point, the best thing to do will be leave the sponges in there and the Hydra on for the next 3-5 days at least and let everything in there level out. I will update the thread tomorrow when I wake up and see where things are at. Thanks again for everyone's help!

It does sound like the issue could be that the cabinet walls are still absorbing water. While I haven't dealt with a cabinet (yet ) I do have a large humi which I felt got up to the proper RH level more quickly because I wiped down the walls & trays a few times with D-H2O not just once.