Are there any inexpensive humidity controllers??

Where to buy, how to use. Stuffers, casings, spices, grinders, etc.

Are there any inexpensive humidity controllers??

Postby tommix » Wed Apr 24, 2013 1:30 am

I have a humidifier and a dehumidifier but the control knobs on them are pretty inaccurate. I am looking for a humidity controller to give me a little bit more accuracy, mainly for the humidifier. The ones I have found start around $80 and go up from there. Does anyone have a good source for one?

Thank-you
tommix
Registered Member
 
Posts: 233
Joined: Sun Jul 17, 2011 2:05 pm
Location: Central California

Re: Are there any inexpensive humidity controllers??

Postby Wunderdave » Thu Apr 25, 2013 3:01 pm

The dayton plug-in humidity controller on amazon is like $50 ish

You have to have mains electricity in your chamber though, some people aren't comfortable with that.

If you can hack together some wiring and an enclosure you can build one with a probe for cheaper, look on Ebay for standalone controllers, they look like PID temperature controllers. Ultrasonic humidifiers don't draw a lot of current so you might not even need to use an external relay to drive it, relying on the integrated relay in the controller instead.
Wunderdave
Registered Member
 
Posts: 491
Joined: Sat Jul 02, 2011 9:12 pm
Location: Golden, Colorado

Re: Are there any inexpensive humidity controllers??

Postby Wunderdave » Thu Apr 25, 2013 3:20 pm

If you want one with humidifying and dehumidifying capabilities, I think you may be stuck spending some extra dough.
Wunderdave
Registered Member
 
Posts: 491
Joined: Sat Jul 02, 2011 9:12 pm
Location: Golden, Colorado

Re: Are there any inexpensive humidity controllers??

Postby tommix » Sat Apr 27, 2013 12:01 pm

Thank-you for the info Wunderdave, I will look into the different options. Right now I am trying to get my PID to control the temperature like I want it to do.
tommix
Registered Member
 
Posts: 233
Joined: Sun Jul 17, 2011 2:05 pm
Location: Central California

Re: Are there any inexpensive humidity controllers??

Postby Wunderdave » Mon Apr 29, 2013 7:20 pm

Using a PID for a fridge may be tricky, PIDs function by using rapid on/off cycles and your fridge's compressor may not handle that kind of stress well.

Check to see if there's a setting in your PID for minimum cycle length and increase it to at least a few minutes if you can. The goal with a curing chamber is to maintain a range of acceptable temps, not a rock solid temperature line like with a sous vide setup for example.
Wunderdave
Registered Member
 
Posts: 491
Joined: Sat Jul 02, 2011 9:12 pm
Location: Golden, Colorado

Re: Are there any inexpensive humidity controllers??

Postby johngaltsmotor » Tue Apr 30, 2013 4:18 pm

Most PID controllers have a setting for simple On-Off control with a deadband. Wunderdave is right, you don't want to let the PID try to apply %power like they are typically used (so many 1/2 wave cycles on, so many off).

I have my deadband set at 3F so when temp is 3deg below target it turns on the heater until it hits target (or when 3deg above it turns on the refrigerator compressor).
Pigs are magical creatures.... they turn vegetables into BACON!!
johngaltsmotor
Registered Member
 
Posts: 304
Joined: Tue Aug 28, 2012 7:26 pm
Location: NW Ohio, USA


Return to Equipment & Supplies

Who is online

Users browsing this forum: No registered users and 4 guests