Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > Electric Brewing > Problem with Thermocouple
Reply
 
LinkBack Thread Tools
Old 03-22-2011, 03:50 AM   #1
bizybrewer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Oklahoma City, OK
Posts: 22
Default Problem with Thermocouple

I have recently built the po man's electric brew rig and am having problems with my new thermocouple. It is a K type thermocouple that is hooked into a T on the mash tun valve. It is hooked up to an led readout, but i am getting weird readings. When I start up the led it gives me a wrong temperature reading, and then slowly starts to increase. I left it on overnight and came back the next morning only to find it reading 500 degrees! I tried to do some research on the internwebs but couldn't find anything. Any ideas?

__________________
bizybrewer is offline
 
Reply With Quote Quick reply to this message
Old 03-22-2011, 03:57 AM   #2
samc
Feedback Score: 1 reviews
Recipes 
 
Join Date: Aug 2008
Location: Portland OR
Posts: 5,420
Liked 55 Times on 52 Posts
Likes Given: 29

Default

You need to provide some details, like type of PID or device reading the thermocouple. Model numbers, etc. Did you set it to read a K type?

__________________
samc is offline
 
Reply With Quote Quick reply to this message
Old 03-22-2011, 04:03 AM   #3
bizybrewer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Oklahoma City, OK
Posts: 22
Default

Yes, it is a K type

Here is a link to the thermo:
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWNX:IT

and here is one to the readout:
http://cgi.ebay.com/Digital-DC-Tempe...item3a642e76bc

These didn't come with any instructions or anything.

In hindsight i should have just bought a PID with a SSR, but oh well.

__________________
bizybrewer is offline
 
Reply With Quote Quick reply to this message
Old 03-22-2011, 04:14 AM   #4
samc
Feedback Score: 1 reviews
Recipes 
 
Join Date: Aug 2008
Location: Portland OR
Posts: 5,420
Liked 55 Times on 52 Posts
Likes Given: 29

Default

Doesn't look like you have any calibration or input choices on that thing. I'd say check the probe with a meter but I wouldn't have a clue what it should read as there are many types of K thermoprobes.

It might be a case of you get what you paid for. Maybe someone will have an answer.

__________________
samc is offline
 
Reply With Quote Quick reply to this message
Old 03-22-2011, 05:26 PM   #5
RedHouse
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2010
Location: NH
Posts: 188
Default

Did you get your polarity correct on the thermocouple?

Sent from my DROIDX using Home Brew Talk

__________________
RedHouse is offline
 
Reply With Quote Quick reply to this message
Old 03-22-2011, 05:44 PM   #6
bizybrewer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Oklahoma City, OK
Posts: 22
Default

yeah, i tried both ways, which both give different but the wrong temperatures

__________________
bizybrewer is offline
 
Reply With Quote Quick reply to this message
Old 02-17-2012, 07:20 PM   #7
rustybrew123
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2008
Posts: 3
Default

Did you ever get this working? I'm interested in making a cheap digital thermometer with this, but not if it is worthless junk. They don't give much info in the listing.

Is it possible there is a way to calibrate it?

__________________
rustybrew123 is offline
 
Reply With Quote Quick reply to this message
Old 02-17-2012, 07:22 PM   #8
bizybrewer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Oklahoma City, OK
Posts: 22
Default

Nope, unfortunately I never did. I cant remember if there is a way to calibrate. I don't think so.

__________________
bizybrewer is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Any problem with the length of this run HossTheGreat Electric Brewing 4 02-01-2011 04:04 PM
Heatstick problem... FenderSteve Electric Brewing 7 01-23-2011 03:44 PM
Heastick problem brewdogskip Electric Brewing 4 12-13-2010 07:08 PM



Newest Threads

LATEST SPONSOR DEALS