MEASURING INSTRUMENT FOR A PROCESS AUTOMATION TECHNIQUE FOR DETERMINING AND MONITORING A CHEMICAL OR PHYSICAL PROCESS VARIABLE IN A HIGH-TEMPERATURE PROCESS IN A CONTAINER

摘要

The invention relates to a measuring instrument for a process automation technique for determining and monitoring a chemical or physical process variable in a high temperature process in a container. The measuring instrument comprises at least one sensor element used in the process and at least one measuring transducer used outside the process. At least one first sealing element is provided for preventing the process medium from penetrating the sensor element. According to the invention, the sensor element has a terminal between a first region of the sensor element, facing the process and having a high thermal resistance, and a second region of the sensor element, facing away from the process and having a low thermal resistance. The temperature-sensitive element is arranged on the terminal in the sensor element.