General Selection Parameters
The conditions of measurement determine the type of thermocouple used. Temperature, atmosphere, protection, response, and service life should be considered. The following descriptions serve as a guide to selection.
Select the thermocouple type that will be capable of operating in your application temperature range and be compatible with your instrumentation.
Select a material that will withstand the temperature and possible corrosives of your application.
Use the tube size that will withstand the rigors of your application but with minimal effect on it.
Fitting or Mounting Type
To attach and/or seal the assembly in your application use a flange or fixed fitting.
Terminal and/or Extension Type
For connection to instruments various terminations and extensions are available.