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-   -   Thermocouple Install (http://www.homebrewtalk.com/f170/thermocouple-install-382012/)

owentp 01-16-2013 07:15 PM

Thermocouple Install
OK...I got a K style thermocouple. It is a short threaded end. How do I hook it up or design a thermowell for it? Any ideas?

hot_carl 01-16-2013 07:43 PM

Thermowell wont really work for it, since they need something inserted in and your probe is short...best way is probably to find out what the thread size/pitch is (likely 1/4-20 or a close metric equivelent from what I've seen on the ebay thermocouples). Then you either use it weldless style with an o-ring or seal on the outside and a nut on the inside, or drill and tap where you want it to go and use an o-ring or sealant to prevent leaks when threaded in. Keep in mind that the short length will limit where you can put it and get a useful reading...a boil kettle or circulated HLT will be fine since things are moving readily, but a mash tun isnt a good candidate.

owentp 01-16-2013 09:41 PM

I may give it a try. It is for a boil kettle. I may look for a longer style too. Thanks!

owentp 01-17-2013 11:07 AM

What is the best type of thermocouple/thermowell should i get?

hot_carl 01-17-2013 01:00 PM

Depends on what type of PID/Temp Controller you have...some only use the Type 'x', some use RTD sensors. But either are available in multiple configurations. The 'best' is arguable, and depends on your system. Ideally a tri-clamp thermocouple/thermowell would be the easiest to remove and clean, but if you are using any type of recirculating an NPT type fitting might be easiest as you can use a T type fitting to include it in an existing bulkhead or make it weldless yourself.

owentp 01-17-2013 01:58 PM

Read about a PT100 style. Does this require a thermowell or just place thru bulkhead weldless? I am using a Rex-C100.

castermmt 01-17-2013 02:13 PM

The PT100 is a RTD and can most likely be mounted right through the kettle. Like this; http://theelectricbrewery.com/boil-kettle?page=4

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