TC101A | MadgeTech

Support Articles — TC101A

Rewiring Thermocouple Mini-plug Connectors

Posted on December 8, 2023December 12, 2023 by Joshua Boone

Many thermocouple solutions are provided fully assembled and connected to a subminiature plug (SMP) with polarized blades, allowing the thermocouple to quickly be attached to a data logger. While these thermocouple solutions often save time and effort, it can be helpful to understand the basic principles of how a thermocouple is connected to an SMP. This can be especially useful when troubleshooting unusual temperature readings that may not be realistic for the application at hand.

What are the different types of Thermocouple connectors?

Posted on January 1, 2020May 4, 2020 by Thomas King

There are three types of Thermocouple connector types: Mini Plug (also known as SMP or sub-miniature plug), Screw Terminal, and Terminal Block. Many of our thermocouple data loggers have different models available for each type of thermocouple connector.

The first is a Mini Plug, and is the easiest connector type as the thermocouple will be prewired into a plug-in terminal for you.

The second is the Screw Terminal, which requires that the data logger case be opened and the thermocouple wires be connected inside the data logger so that they cannot be removed without opening the data logger.

The last is the Terminal Block connection type, which has a greenie connected to the data logger. The thermocouple wires are connected to the greenie plug so that it can be removed from the body of the data logger.

The TC101A shown with a mini plug connector (TC101A-MP).

The TC101A shown with a screw terminal connector (TC101A-ST).

The TC101A shown with a terminal block connector (TC101A-TB).