Abstract: An electrotechnical device is provided, having components connected by means of plug connections. The interior of the device is filled with a casting material. The device includes: a housing; arranged in the housing a first component which has at least one terminally-protruding contact pin; a second component which has a socket on which terminally-located contact plugs are provided for receiving the contact pins; and an insert in which the first component is arranged. The insert includes a secluded chamber which has an opening into which the socket of the second component is introduced. The chamber additionally includes a rear wall lying opposite the opening through which the contact pins are stuck into the contact plugs of the socket. An air-tight seal exists between the contact pins and the rear wall. The housing is filled with the casting material from an end lying opposite to the opening of the chamber.

Abstract: The invention relates to a device for determining and/or monitoring the level of a filling material in a container. According to the invention, an oscillatable unit is provided which is fastened to a membrane, whereby said oscillatable unit is mounted at the height of the predetermined level. An emitting-receiving unit is provided which, with a given emit frequency, causes the membrane and the oscillatable unit to oscillate, and which receives the oscillations of the oscillatable unit. A control/evaluation unit is provided, which identifies once the predetermined level is obtained upon a given change in frequency or which, with the aid of the oscillation frequency of the oscillatable unit, determines the density of the filling material.

Abstract: A circuit board with a contact sleeve mounted thereon. The contact sleeve is electrically connectable in the manner used for an SMD-component. An upper side of the circuit board has a recess and a metallizing bordering the recess, the metallizing being connected to a conductor path extending on the circuit board, and, set in the recess, a contact sleeve, which is both mechanically secured and electrically connected to the metallizing by means of a solder connection.

Abstract: A circuit board (15) with a contact sleeve (17) mounted thereon. The contact sleeve (17) is electrically connectable in the manner used for an SMD-component. An upper side of the circuit board (15) has a recess (23) and a metallizing (25, 26) bordering the recess (23), the metallizing (25, 26) being connected to a conductor path (27) extending on the circuit board (15), and, set in the recess (23), a contact sleeve (17), which is both mechanically secured and electrically connected to the metallizing (25) by means of a solder connection (29).

Abstract: The invention relates to a device for determining and/or monitoring the level of a filling material in a container. According to the invention, an oscillatable unit (2) is provided which is fastened to a membrane (5), whereby said oscillatable unit (2) is mounted at the height of the predetermined level. An emitting-receiving unit (6) is provided which, with a given emit frequency, causes the membrane (5) and the oscillatable unit (2) to oscillate, and which receives the oscillations of the oscillatable unit (2). A control/evaluation unit (10) is provided, which identifies once the predetermined level is obtained upon a given change in frequency or which, with the aid of the oscillation frequency of the oscillatable unit (2), determines the density of the filling material.

Abstract: An apparatus for establishing and/or monitoring a predetermined filling level in a container is described, which apparatus can be used in a wide range of applications, that is to say in many different media, which apparatus comprises: a housing (1), an oscillating element for projecting into the container, a diaphragm (5), which is fixedly clamped into the housing (1) at its edge and to which the oscillating element is fastened, and an electromechanical transducer for exciting the diaphragm (5) to produce oscillations in dependence on a transmission signal (S) present at the transducer and for receiving and converting oscillations thereof into an electrical reception signal (E), in which a percentage interval between a resonant frequency fr and an antiresonant frequency far divided by the resonant frequency fr exceeds 20% when the oscillating element oscillates in air.