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Thermocouple problem


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Does anyone know how to fix one of these things when they decide to just output EEEE all the time? I have two of them that just bailed at 2200*F for no apparent reason.

“So I'm lightin' out for the territory, ahead of the scared and the weak and the mean spirited, because Aunt Sally is fixin’ to adopt me and civilize me, and I can't stand it. I've been there before.”

The only bad experience is the one from which you learn nothing.  

 

Josh

http://www.dosgatosdesignsllc.com/#!

https://www.youtube.com/channel/UCdJMFMqnbLYqv965xd64vYg

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Can you get the SS shielding off (without damaging it)?  If so, the thermocouple wire itself is easy to repair, or even replace.  I am assuming the thermocouple wire is just inside a sealed tube.  

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It does not appear to disconnect from the handle. There seems to be some small wire sticking out the business end.

“So I'm lightin' out for the territory, ahead of the scared and the weak and the mean spirited, because Aunt Sally is fixin’ to adopt me and civilize me, and I can't stand it. I've been there before.”

The only bad experience is the one from which you learn nothing.  

 

Josh

http://www.dosgatosdesignsllc.com/#!

https://www.youtube.com/channel/UCdJMFMqnbLYqv965xd64vYg

J.States Bladesmith | Facebook

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https://www.etsy.com/shop/JStatesBladesmith

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Hmm, I guess it says that the connection is exposed, so that makes sense.  And the wire is not broken?  Is it loose at all?  Can you pull the wires out a little bit?  Maybe one side more than the other?

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I cannot pull the wires out. There are 2 ends showing

“So I'm lightin' out for the territory, ahead of the scared and the weak and the mean spirited, because Aunt Sally is fixin’ to adopt me and civilize me, and I can't stand it. I've been there before.”

The only bad experience is the one from which you learn nothing.  

 

Josh

http://www.dosgatosdesignsllc.com/#!

https://www.youtube.com/channel/UCdJMFMqnbLYqv965xd64vYg

J.States Bladesmith | Facebook

https://www.facebook.com/dos.gatos.71

https://www.etsy.com/shop/JStatesBladesmith

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Thermocouples are pretty simple, the two dissimilar metals just have to be in good contact.  The ideal is to weld them (I like TIG, but oxy-acetylene works, too), but you can also just twist them together.  If you have enough wire sticking out, see what you can do.  If you think they are toast anyway, you can try tearing them apart to run new wire through the SS sheath.  The plain wire (with a ceramic weave coating it) will be much cheaper.  

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So, just clean the ends, twist them together, and see if that works? Maybe try TIG. If that doesn't work, toss it out and buy a new one......

Thanks Jerrod!

“So I'm lightin' out for the territory, ahead of the scared and the weak and the mean spirited, because Aunt Sally is fixin’ to adopt me and civilize me, and I can't stand it. I've been there before.”

The only bad experience is the one from which you learn nothing.  

 

Josh

http://www.dosgatosdesignsllc.com/#!

https://www.youtube.com/channel/UCdJMFMqnbLYqv965xd64vYg

J.States Bladesmith | Facebook

https://www.facebook.com/dos.gatos.71

https://www.etsy.com/shop/JStatesBladesmith

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That is what I would do, except I would try to pull the thing apart and see about a complete rebuild before tossing it.  It would be interesting and possibly save money in the long run.  But that is just me.  

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Sounds like more work than the $50 it takes to buy a new one.

“So I'm lightin' out for the territory, ahead of the scared and the weak and the mean spirited, because Aunt Sally is fixin’ to adopt me and civilize me, and I can't stand it. I've been there before.”

The only bad experience is the one from which you learn nothing.  

 

Josh

http://www.dosgatosdesignsllc.com/#!

https://www.youtube.com/channel/UCdJMFMqnbLYqv965xd64vYg

J.States Bladesmith | Facebook

https://www.facebook.com/dos.gatos.71

https://www.etsy.com/shop/JStatesBladesmith

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Josh,

 

I'm curious why you chose that particular thermocouple.  Is it more accurate than the ceramic type?  This is what I use in my forge:  CR-2-2__60591.1530282520.JPG

 

But it's been acting crazy recently.  Won't register a temperature until it gets up in the 1600 degree range.  Weird.  Been considering something more accurate.

Chris

 

www.chrischristenberry.com

WHEW!!!  If I could only know now what I "thought" I knew back then....................

 

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The one I purchased was recommended by several folks on this forum. Where did you get yours and what is it?

I used to have one from Omega that was good to 3000*F but they don't have any that go there anymore. At least not in the filter section

 

 

Edited by Joshua States

“So I'm lightin' out for the territory, ahead of the scared and the weak and the mean spirited, because Aunt Sally is fixin’ to adopt me and civilize me, and I can't stand it. I've been there before.”

The only bad experience is the one from which you learn nothing.  

 

Josh

http://www.dosgatosdesignsllc.com/#!

https://www.youtube.com/channel/UCdJMFMqnbLYqv965xd64vYg

J.States Bladesmith | Facebook

https://www.facebook.com/dos.gatos.71

https://www.etsy.com/shop/JStatesBladesmith

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13 hours ago, Chris Christenberry said:

Josh,

 

I'm curious why you chose that particular thermocouple.  Is it more accurate than the ceramic type?  This is what I use in my forge:  CR-2-2__60591.1530282520.JPG

 

But it's been acting crazy recently.  Won't register a temperature until it gets up in the 1600 degree range.  Weird.  Been considering something more accurate.

13 hours ago, Jerrod Miller said:

The ceramic breaks if you accidentally hit it

When I ordered mine from Auberins, I got a second ceramic sheath that fits over the entire thing for extra protection for $20.

Sheath.jpg

When I have had issues with it not reading properly, I started by checking the screws where the wires connect.  I've had to cut back an inch or so of the wire to get a new, clean connection the last time mine was acting weird.

 

 

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RIP Bear....be free!

 

as always

peace and love

billyO

 

 

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That's interesting, Billy.  I thought about cutting back the connecting wires........................but haven't gotten around to it.  As soon as the temp gets up into the 1600 degree range it starts registering on the meter.  But it has had me wondering how accurate it is while acting wonky like that.  I'll cut back the wires today and see if that corrects it.  Thanks for the tip.

 

Joshua, I think I bout it here:  https://www.amazon.com/Temperature-K-Type-Thermocouple-Ceramic-Furnace/dp/B07G3PBNNG

Edited by Chris Christenberry

Chris

 

www.chrischristenberry.com

WHEW!!!  If I could only know now what I "thought" I knew back then....................

 

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