Field device for use in hygienic applications in process and automation technology, and method for the production thereof

• Main Authors: SCHONHARDT RAPHAEL, WEINSTEIN TORSTEN, GERWIG SIMON
• Format: Patent
• Language: Chinese; English
• Published: 08.06.2018
• Subjects: CONTROLLING; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

The invention describes a field device (1) for use in hygienic applications in process and automation technology, which comprises at least one sensor element (2), at least one electric circuit (3), atleast one heating element (4), at least one housing (5), which has an outer side (6) and an inner side (7) and in which at least the sensor element (2), the electric circuit (3) and the heating element (4) are arranged and attached, and an external energy supply unit (11), wherein the field device has two connection pins (8), to which the sensor element (2) and the electric circuit (3) are connected and by means of which there is an electrical connection with the external power supply (11), as a result of which a first current loop (12) is formed, and a second current loop (13) is provided, the latter being arranged in such a way that the heating element (4) is in electrical contact with the external energy unit (11) by way of one of the two connection pins (8) and the third connection pin (9), as a result of whi