Protected Thermocouples

June 18, 2025
FEATURES FEATURES Home> All Features> Protected Thermocouples Protected Thermocouples Benefits of L&L's Protected Thermocouples The Protection Tube extends past the tip, protecting the tip from damage while loading the kiln Keeps the oxide dust from the thermocouple tip from getting into the kiln while firing. (Any dust should still be vacuumed when doing the normal cleaning of the kiln). Protects thermocouples from excessive radiation error from the nearby hot elements. It reduces zone control errors. The tips of all thermocouples are equally exposed to the kiln's heat. They are also protected as much as possible. Size and Description The protection tubes have an outside diameter of 3/4 inch. They have an inside diameter of 1/2 inch. This size fits the standard 8 gauge Type K thermocouple. There is a flange on the back end of the thermocouple to prevent it from going into the kiln. The tube is open but protrudes past the delicate tip of the thermocouple. Calibrating Your Kiln For ceramic work, we suggest calibrating the kiln performance with cones. Adjust the control to match the firing cones' performance. The most important thing is to get a consistent reading from the thermocouples. Details on why this feature changed and how to change over an older kiln

Thermocouple Protection Tube

Benefits of L&L's Protected Thermocouples

The Protection Tube extends past the tip, protecting the tip from damage while loading the kiln
Keeps the oxide dust from the thermocouple tip from getting into the kiln while firing.
(Any dust should still be vacuumed when doing the normal cleaning of the kiln).
Protects thermocouples from excessive radiation error from the nearby hot elements.
It reduces zone control errors. The tips of all thermocouples are equally exposed to the kiln's heat. They are also protected as much as possible.

The protection tubes have an outside diameter of 3/4 inch. They have an inside diameter of 1/2 inch. This size fits the standard 8 gauge Type K thermocouple.
There is a flange on the back end of the thermocouple to prevent it from going into the kiln.
The tube is open but protrudes past the delicate tip of the thermocouple.

For ceramic work, we suggest calibrating the kiln performance with cones. Adjust the control to match the firing cones' performance. The most important thing is to get a consistent reading from the thermocouples.