SYSTEM FOR DETERMINING AND/OR MONITORING A PROCESS VARIABLE OF A MEDIUM

摘要

The invention relates to a system for determining and/or monitoring a process variable of a medium or for determining and/or monitoring a predefined fill level of a medium in a container, comprising a sensor module (1) having a vibratable unit (2) which is arranged in the container in such a way that the vibratable unit (2) is immersed into the medium up to a defined immersion depth or that the vibratable unit (2) is attached at the height of the predefined fill level, a tube extension (24) and/or a temperature reducing unit (3) of a defined length, a contacting module (4), and an electronics module (5) consisting of an excitation/receiver unit (6) which stimulates the vibratable unit (2) to vibrate and receives the vibrations of the vibratable unit, wherein two electric coupling paths are assigned to the electronics module, and with a control/evaluation unit (7) which provides information about the process variable or about reaching the predefined fill level based on at least one vibration variable of the vibration or based on a change of a vibration variable of the vibration, wherein the sensor module (1) and the electronics module (5) are either directly electrically connected to each other and wherein one of the two electrical coupling paths (9; 10) is activated, or wherein the sensor module (1) and the electronics module (5) are indirectly electrically connected to each other via the contacting module (4) and wherein the two coupling paths (9; 10) are activated.