Thermocouples

Thermocouples are thermometers using the principle (Seebeck effect) wherein thermo-electromotive force is generated when two different types of metal wires are connected and a temperature difference is applied to both contacts of the thermocouple. Since the relationship between the temperature and the thermo-electromotive force is known, the temperature can be measured by connecting a measuring instrument between two terminals formed by opening one of the contacts and measuring the thermo-electromotive force.

• Specifications

  Type	Thermo-couple code	Core diameter (mm)	Sheath materials	Heat-resistive temperature
  T-G-0.32	T	0.32	Heat-resistive vinyl	100 ℃ approx
  T-G-0.65	T	0.65	Heat-resistive vinyl	100 ℃ approx
  T-6F-0.32	T	0.32	Teflon	200 ℃ approx
  T-6F-0.65	T	0.65	Teflon	200 ℃ approx
  T-GS-0.65	T	0.65	Heat-resistive vinyl (shielded)	100 ℃ approx
  K-H-0.32	K	0.32	Glass fiber	350 ℃ approx.
  K-H-0.65	K	0.65	Glass fiber	350 ℃ approx.