Style 80 Terminal Head Style Thermocouple

Terminal Head Styles 

Type J: The Iron - Constantan "J" curve thermocouple is the most widely used thermocouple; it is versatile and has a relatively low cost. It has a positive Iron wire and a negative Constantan wire and is recommended for reducing atmospheres. The operating range for this alloy combination is from 0° to 750° C (32° to 1380° F) for the largest wire sizes. Smaller size wire should operate in correspondingly lower temperatures. 

Type K: The Chromel™ - Alumel™ "K" curve thermocouple is often used at high temperatures. It has a positive Chromel™ wire and a negative Alumel™ wire and is recommended for use in clean oxidizing atmospheres. The operating range for this alloy is from 0° to 1250° C (32° to 2280° F) for the largest wire sizes. Smaller size wire should operate in correspondingly lower temperatures. 

Thermocouple Insulation Types 

BTC - Beaded thermocouples are mainly used in furnace applications.