Procedure for manufacturing a diaphragm seal system comprising the following steps: - Provision of a protective hose, a capillary tube and a diaphragm seal, wherein the diaphragm seal consists of a membrane support body and a filling adapter body, wherein, at a first end, the membrane support body comprises a separation membrane which is connected in a gas-tight manner to the membrane support body along at least one edge, forming a pressure chamber between the separation membrane and the membrane support body, and where, at a second end, said membrane support body is joined to a first end of the filling adapter body, wherein, at a second end, the filling adapter body has a first capillary interface for the hydraulic connection of the capillary tube, wherein the first capillary interface is designed in such a way that the capillary tube can be introduced into the first capillary interface as far as a predefined depth and surrounds the capillary tube, wherein the diaphragm seal further comprises an inner connecting oil path extending from the pressure chamber to the first capillary interface, such that the pressure chamber can be hydraulically connected from the first capillary interface, wherein the capillary tube is introduced into the first capillary interface and is welded onto the filling adapter body, wherein the first capillary interface further comprises a protective hose socket with an annular recess, wherein the annular recess is formed between an exterior surface of the filling adapter body and the interior oil path, and wherein the protective hose socket is formed in such a way that the protective hose can be fitted on the outside over the protective hose socket as far as the annular recess, and wherein the filling adapter body features a filling cap to fill the diaphragm seal system with a pressure transmission liquid; - Arrangement of the capillary tube in relation to the first capillary interface of the diaphragm seal, wherein the capillary tube is introduced at one end into the first capillary interface as far as the predefined depth; - Substance-to-substance welding of the capillary tube onto the first capillary interface; - Attachment of the protective hose on the protective hose socket of the first capillary interface as far as the inside of the annular recess. - Provision of a protective hose, a capillary tube and a diaphragm seal, wherein the diaphragm seal consists of a membrane support body and a filling adapter body, wherein, at a first end, the membrane support body comprises a separation membrane which is connected in a gas-tight manner to the membrane support body along at least one edge, forming a pressure chamber between the separation membrane and the membrane support body, and where, at a second end, said membrane support body is joined to a first end of the filling adapter body, wherein, at a second end, the filling adapter body has a first capillary interface for the hydraulic connection of the capillary tube, wherein the first capillary interface is designed in such a way that the capillary tube can be introduced into the first capillary interface as far as a predefined depth and surrounds the capillary tube, wherein the diaphragm seal further comprises an inner connecting oil path extending from the pressure chamber to the first capillary interface, such that the pressure chamber can be hydraulically connected from the first capillary interface, wherein the capillary tube is introduced into the first capillary interface and is welded onto the filling adapter body, wherein the first capillary interface further comprises a protective hose socket with an annular recess, wherein the annular recess is formed between an exterior surface of the filling adapter body and the interior oil path, and wherein the protective hose socket is formed in such a way that the protective hose can be fitted on the outside over the protective hose socket as far as the annular recess, and wherein the filling adapter body features a filling cap to fill the diaphragm seal system with a pressure transmission liquid; - Arrangement of the capillary tube in relation to the first capillary interface of the diaphragm seal, wherein the capillary tube is introduced at one end into the first capillary interface as far as the predefined depth; - Substance-to-substance welding of the capillary tube onto the first capillary interface; - Attachment of the protective hose on the protective hose socket of the first capillary interface as far as the inside of the annular recess.