Field device designed to be used in process automation, said device comprising: - a housing for EMC screening, which surrounds an interior space consisting at least of a first chamber and a second chamber; - at least one sensor, arranged in the first chamber, for the measurement conversion of a physical variable to a first electronic measured variable; - at least a first electronic circuit, arranged in the first chamber, which is designed to operate the sensor and process the first measured variable into an intermediate signal; - at least a second electronic circuit, located in the second chamber 15, designed to power the first electronic circuit and convert the intermediate signal to an output signal which can be output via a connection line; - at least an electrically conductive barrier spatially separating the at least first two chambers (12, 13) and presenting these, as a result, as different EMC areas; characterized in that the housing consists of a housing core made of conductive material and a housing envelope made of non-conductive material, wherein the housing envelope surrounds the housing core on all sides as the housing envelope is applied on the outside and on the inside of the housing core, in that at least one grounding terminal is mounted and arranged in the interior space in such a way that the grounding terminal has an electrical contact at the housing core and the conductive barrier, and in that areas of the housing core are guided through the envelope into the interior space as a result of which ground connections of the first electronic circuit are in electrical contact by means of spring contacts. - a housing for EMC screening, which surrounds an interior space consisting at least of a first chamber and a second chamber; - at least one sensor, arranged in the first chamber, for the measurement conversion of a physical variable to a first electronic measured variable; - at least a first electronic circuit, arranged in the first chamber, which is designed to operate the sensor and process the first measured variable into an intermediate signal; - at least a second electronic circuit, located in the second chamber 15, designed to power the first electronic circuit and convert the intermediate signal to an output signal which can be output via a connection line; - at least an electrically conductive barrier spatially separating the at least first two chambers (12, 13) and presenting these, as a result, as different EMC areas; characterized in that the housing consists of a housing core made of conductive material and a housing envelope made of non-conductive material, wherein the housing envelope surrounds the housing core on all sides as the housing envelope is applied on the outside and on the inside of the housing core, in that at least one grounding terminal is mounted and arranged in the interior space in such a way that the grounding terminal has an electrical contact at the housing core and the conductive barrier, and in that areas of the housing core are guided through the envelope into the interior space as a result of which ground connections of the first electronic circuit are in electrical contact by means of spring contacts.