Patent ID: 11877417
Assignee: ENDRESS+HAUSER FLOWTEC AG
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A housing module of a field device of measurement and automation technology, the housing module comprising:
a housing including a housing wall, which defines a first housing chamber and a second housing chamber, wherein the first housing chamber and the second housing chamber are separated by a partition wall, which is releasably fastened;
a measurement/operating electronics unit disposed in the first housing chamber;
an interface electronics unit disposed in the second housing chamber and configured to enable connecting lines for supplying power to the field device and/or for exchanging data, wherein the housing wall includes, on an interior side, a first wall region configured to receive the partition wall, the first wall region separated from a lateral surface of the partition wall by a gap surrounding the partition wall, the gap having a gap width and a path length in a plane containing a longitudinal section of the partition wall,
wherein a ratio of the gap width to the path length is less than 0.05 and meets requirements of an Ex-d standard according to IEC60079-1 of 2014-06 and EN60079-1 of 2014-06; and
a securing device configured to limit a range of movement of the partition wall toward the second housing chamber,
wherein the housing wall includes, on the interior side, a second wall region in which the housing wall includes, at least in parts, at least one groove, the at least one groove extending parallel to a cross-sectional plane of the partition wall,
wherein the securing device includes an engagement device configured to engage in the at least one groove, wherein the engagement device includes at least two engagement elements that are configured such that, when the securing device is installed in the second housing chamber, the at least two engagement elements are guided from an initial position into a target position in an associated groove, and
wherein the at least two engagement elements are further configured to be fixed in the target position by a fastening device.