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Old 11-04-2019, 06:33 PM
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Franklin Sankar Franklin Sankar is offline
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Connecting thermocoupler

How do you connect these. A 12 g thermocoupler
And a 20g wire. I am thinking about a porcelain twist on connector. What are your thoughts?
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Last edited by Franklin Sankar; 11-04-2019 at 06:41 PM.
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Old 11-04-2019, 07:03 PM
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Scott Dunahee Scott Dunahee is offline
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I always used a ceramic terminal block, Franklin. I think they were thermocouple specific and didn't cost very much. They have them on amazon for $6 us. Hope that helps.


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Last edited by Scott Dunahee; 11-04-2019 at 07:06 PM.
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Old 11-04-2019, 07:35 PM
Eben Horton Eben Horton is offline
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You could also use a copper split nut
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Old 11-04-2019, 07:42 PM
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Franklin Sankar Franklin Sankar is offline
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Thanks. I can get the block here.
Franklin
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Old 11-04-2019, 10:21 PM
Peter Bowles Peter Bowles is offline
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Be sure to get the polarity of the compensating cable the right way round. The cables have specific alloys for the + and - with specific resistance. If you get the cable the wrong way round your temp readings will differ.
There are numerous charts - all colour coded for the different types of cable, and interestingly, none of them yet fit to an international standard so you'll have to match what you have with the appropriate table.
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Old 11-05-2019, 05:00 AM
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Franklin Sankar Franklin Sankar is offline
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Noted with thanks
Franklin
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Old 11-06-2019, 01:51 PM
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Franklin Sankar Franklin Sankar is offline
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Angry

I just noticed the block we have are not thermocouple specific. So I am back to Eben coper lug split bolt. I ordered a block also. Just have to sit back and wait.
Never got so much trouble connecting the thermocouple . Itís as if the controller lost some of its sensitivity. It all started when I found the nice doggie sitting on the annealer.
Franklin
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Old 11-06-2019, 01:59 PM
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Franklin Sankar Franklin Sankar is offline
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I pulled the order . Scott or anyone else. What is the name of the block you ordered. Just to make sure .
Franklin
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Old 11-06-2019, 04:36 PM
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I got this to work . At least for a while.ceramic connectors so no contamination with other metals impacting on the joint.
Franklin
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Old 11-06-2019, 08:40 PM
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High Temperature Ceramic K-type Thermocouple Terminal Block

I just searched amazon for "thermocouple terminal block"

Good luck Franklin!

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Old 11-07-2019, 09:54 AM
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I would think that trying to connect a 20 gauge to a 12 gauge wire in a split bolt is fraught with potential issues. The block connector in my mind would be better.
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