Fill level gauge
AssigneeEndress + Hauser GmbH + Co. KG
InventorsLars Stolz, Robert Schmidt, Gerd Bechtel
Life of this patent
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Abstract
An electrical assembly for an electrical fill level measuring device for measuring a fill level of a medium in a containment comprises an electrically conductive probe having a plastic coating in a central region and a process connection. The probe is seated by means of a rotationally symmetric, especially ring shaped or tubular, seal radially relative to the process connection. The seal is connected with the plastic coating by material bonding by means of a weld method. The probe is seated radially and/or axially in a housing near end region by a seating means rotationally fixed in at least one rotational direction.
Claims11
An electrical assembly for an electrical fill level measuring device for measuring a fill level of a medium in a containment, the electrical assembly comprising:
- an electrically conductive probe adapted for conducting an electrical signal, wherein the electrically conductive probe is adapted to be immersed into the medium, wherein the electrically conductive probe has in an axial direction a central region and two end regions, wherein the probe has a plastic coating in the central region;
- and
- a process connection that is adapted to seat the electrically conductive probe radially, wherein the electrically conductive probe extends sectionally via an open end of the process connection into a lumen of the process connection;
- wherein the electrically conductive probe is held radially relative to the process connection by a rotationally symmetric seal, and wherein the rotationally symmetric seal is connected with the plastic coating by material bonding by a weld method.
An electrical fill level measuring device for measuring a fill level of a medium in a containment, comprising:
- an electrical assembly, including:
- an electrically conductive probe adapted for conducting an electrical signal, wherein the electrically conductive probe is adapted to be immersed into the medium, wherein the electrically conductive probe has in an axial direction a central region and two end regions, wherein the probe has a plastic coating in the central region;
- a process connection that is adapted to seat the electrically conductive probe radially, wherein the electrically conductive probe extends sectionally via an open end of the process connection into a lumen of the process connection;
- wherein the electrically conductive probe is held radially relative to the process connection by a rotationally symmetric seal, wherein the rotationally symmetric seal is connected with the plastic coating by material bonding by a weld method;
- an electronic measuring/operating circuit adapted for producing and evaluating electrical signals as well as for providing fill level measured values or a connection for such an electronic measuring/operating circuit;
- and
- a housing in which the electronic measuring/operating circuit or the connection for the electronic measuring/operating circuit is arranged.
A method for producing a fill level measuring device, wherein a probe of the fill level measuring device has in the axial direction a central region with a plastic coating, the method comprising:
- leading a rotationally symmetric seal over an end of the probe to the central region, wherein seal and the plastic coating form a press fit with one another;
- and
- establishing a relative movement between the seal and the probe such that the seal and the plastic coating become sectionally connected together by material bonding as a result of friction.
Dependencies are inferred from the claim text.