DIY Powdercoat Oven - Val6 Diesel heater?

[martyy]

No sir. Didnt even know there was such a thing.. I just used regular copper conductor thermostat wire that would be used in a home. I have ordered a longer k-type thermocouple which has both longer probe and length of wire. That way, I wont have to splice. Figured it was cheaper to do this than get just the splice wire and connectors. I appreciate your help.

[34by151]

The wire itself is the sensor which is why you cant extend with copper
Shielded Leads (stainless cover) can be up to 900m long
Thermocouples (depending on type) are accurate to 2degC

A thermocouple with a longer cable is often the best answer
One with a longer probe is good too as it moves the measurement away from the wall and into the airflow (100-200mm probe)

[martyy]

The wire itself is the sensor which is why you cant extend with copper

Ha! Did not know that. No wonder I struggled to fray the shielding and splice into the wire. Just assumed it was my poor eye sight. New sensor wont be here till mid-late next week. I guess this project is on hold for a bit longer.

[34by151]

The probe is made from two dissimilar metals (each wire) and the wires are joined together at the sensing end
The type of probe J,K ect tells you the wire types and ranges