Abstract: An arrangement is disclosed for supplying power to a field device used to monitor an industrial process in a plant, having an enclosure and a wireless communications interface for data communications with a central data-processing device, and having a thermoelectric converter, which converts an existing heat flow between two points at different temperatures into electrical power and supplies this power to the field device. The thermoelectric converter is arranged in a separate enclosure from the field device, and transfers the electrical power to the field device by means of electrical wires or wireless transmission.

Abstract: The invention relates to a method for operating a control system of an industrial process, the control system having at least one control loop comprising a sensor (200), a control device (300) and an actuator (400), the actuator being connected to the sensor (200) via the industrial process (100). To detect faults in the control loop, it is proposed to inject (51, 52) a predefined test signal at an arbitrary point of the control loop, and to monitor (61 to 63) the response of the control loop as a function of the test signal at a separation of at least one control-loop element.

Abstract: Exemplary embodiments are directed to processing a sensor signal using the correction parameters assigned to the sensor. A pressure transducer is disclosed for measuring and converting absolute pressure and/or differential pressure into an adequate electrical measurement signal with the aid of a processing unit having an associated read-only memory, in which is stored a set of correction parameters for correcting the measurement signal.

Abstract: Method for zero correction of a measuring device, in particular a flowmeter, wherein a number of zero settings are carried out with the device and/or process in different states. In the case of each of these zero settings, a set of device and/or system parameters is recorded together with the measured zero value and stored in an electronic memory, and in normal operation of the measuring device, a stored set of device and/or system parameters that matches the respectively current system and/or device parameters is sought, so that the measured zero value assigned to this set of parameters is used as the current zero value.

Abstract: A magnetic-inductive flow meter with a measuring tube, which can be fitted into a pipeline system by using flange portions at the ends, with at least two measuring electrodes that are fitted into the wall of the measuring tube opposite each other in an electrically isolated manner and are intended for sensing a measuring voltage, a magnet unit, which is likewise arranged on the outside of the measuring tube, generating a magnetic field that is aligned substantially perpendicularly in relation to the direction of flow of the conductive flow medium to be measured, and the measuring tube being provided on the inside with means for the electric isolation of the measuring electrodes from the measuring tube, the means for the electric isolation taking the form of a thin inner coating of the measuring tube, the layer thickness of which lies in the range of 0.1-500 ?m.

Abstract: The invention relates to a control loop comprising a measured-value sensor (200), a control device (300) and an actuator (400), the actuator being connected to the measured-value sensor (200) via the industrial process (100). To detect faults in the control loop, it is proposed to impress on the wanted signal an interference signal having definable signal parameters, which is injected into the control loop by an interference-signal source (51 to 53). The interference-signal source has means for detecting and evaluating the interference signal fed back via the control loop in the direction of control action.

Abstract: A magnetoinductive flowmeter for a medium (2), which is flowing through a measuring tube (1) and has a minimum electrical conductivity, having at least two electric coils (3a, 3b), which are arranged opposite one another on the measuring tube (1), for the purpose of inducing a magnetic field running essentially perpendicularly with respect to the longitudinal axis of the measuring tube (1), and having an electrode arrangement (4), which is likewise aligned essentially perpendicularly with respect to the longitudinal axis of the measuring tube (1) and essentially perpendicularly with respect to the magnetic-field axis, for the purpose of measuring a measurement voltage induced as a result of the flow of medium (2), the electric coils (3a, 3b) being accommodated such that they are sealed on the outside in each case one associated housing part (4a and 4b, respectively), which housing parts are in the form of hollow-cylinder segments and are mounted detachably on the measuring tube (1) by being joined together so

Abstract: The invention relates to a system for the automatic installation, verification and configuration of functionality that is stored in installation, verification and/or configuration files for system components that are located in a distributed network. Said system comprises a system design tool for generating, checking and configuring the installation, verification and/or configuration files for the respective system components. According to the invention, the system design tool transmits the installation, verification and/or configuration files to the system components for installation, the installation, verification and/or configuration files required in the respective system components are checked and configured in a predetermined sequence and manner and a complete system is formed once the system components have been configured.

Abstract: A method and device for obtaining an interference free measurement from a flowmeter. The flowmeter includes a measuring tube through which a flowable medium flows through a magnetic field generated by a magnetic arrangement and at least two measuring electrodes for detecting the measurement voltage induced by the flowable medium. The medium gives rise to interference voltages. The electrodes are connected to an interference-voltage eliminating unit by which common-mode interference is first eliminated by differentiation and unequal interference voltages are subsequently eliminated.

Abstract: A floating body flowmeter having a measuring tube (1) which is positioned vertically and through which a substance (2) to be measured flows, in which tube a floating body (3) is arranged in order to determine the flow rate, the rise height (h) of said body relative to the measuring tube (1) being in a defined relationship with the flow rate, it being possible for the measuring range to be adjusted at least via the density of the floating body (3), and the floating body (3) being heterogeneous in such a way that the latter consists of an industrial mass-produced material in the core (4), the material selection being coordinated with the fact that the measuring range can be adjusted substantially via the density of the core (4), and the core (4) is provided with an external coating (5), its material being coordinated with the fact that this is chemically and/or mechanically resistant to the substance to be measured, and furthermore that all the other parts in contact with the substance to be measured are coated

Abstract: A magnetic induction flowmeter having a metal measuring tube (1), which can be inserted into a pipeline system via flanged sections (2a, 2b) at the ends, having at least two mutually opposite measuring electrodes (5a, 5b) introduced into the wall of the measuring tube (1) in an electrically insulated manner in order to register a measuring voltage, a magnetic unit (4), likewise arranged on the outside of the measuring tube (1), generating a magnetic field aligned substantially at right angles to the flow direction of the conductive flow medium to be measured, and the measuring tube (1) being provided with an electrically insulating layer (6) on the inside; in the region of the flanged sections (2a, 2b) at the end of the measuring tube (1), an expanded lattice (7) being fixed to the measuring tube (1), to which lattice the insulating layer (6) is applied in such a way that the expanded lattice (7) located within the insulating layer (6) ensures a firm connection between insulating layer (6) and measuring tube

Abstract: A magnetic induction flowmeter has a plastic measuring tube (1), which can be inserted into a pipeline system, having at least two mutually opposite measuring electrodes (3) introduced into the wall of the measuring tube (1) in order to register a measuring voltage, a magnetic unit (2), likewise arranged on the outside of the measuring tube (1), generating a magnetic field aligned substantially at right angles to the flow direction of the conductive flow medium to be measured. The plastic measuring tube (1) is equipped with means for diverting axial and thrust forces which act from the outside on the measuring tube (1) inserted into the pipeline system, in order to keep destructive mechanical loadings away from the measuring tube (1).

Abstract: The invention proposes an electrical service device, in particular line circuit breaker or motor circuit breaker, having a housing having connection means (20, 21) for the purpose of connecting busbars and/or connection lines on at least one end side, having at least one switching contact having a fixed and a movable switching contact piece, an arc (6) being produced in an arc prechamber area (5) between said fixed and movable switching contact pieces in the event of a disconnection, said arc entering a current-limiting arc-quenching device (7) via arc guide rails. Prechamber plates (9, 12) are arranged in the region of the arc prechamber area (5), return-flow channels (10, 13) being formed by said prechamber plates (9, 12) from the arc-quenching device (7) to the arc prechamber area (5) between the housing wall (2) and the prechamber plates (9, 12).

Abstract: A measuring instrument whose measuring principle is based on an oscillator, for example an eddy counter, and in which there is arranged a sensor for recording a measured signal (S(t)), which can be supplied to an evaluation unit (2), characterized in that, from the phase increments psi(tau,t), that is to say from the differences between the instantaneous values phi(t) of the phase signal derived from the measured signal S(t) in a phase extractor (18) and values phi(t-tau) time-delayed by a delayed time tau, a coupling indicator value (KI) is formed in such a way that the existence of phase coupling with a further oscillator can be detected on the latter by means of comparison with a coupling reference value (KR).

Abstract: The invention proposes an electrical service device, in particular line circuit breaker or motor circuit breaker, having a housing having connecting areas and connection means (2, 3) for the purpose of connecting busbars and/or connection lines on both end sides and, having at least one switching contact having a fixed and a movable contact piece (4, 6), an arc (13) being produced in an arc prechamber area (7) between said fixed and movable contact pieces (4, 6) in the event of a disconnection. The arc enters a current-limiting arc-quenching device (12), in particular an arc splitter stack, via arc guide rails (14, 16), at least one insulating plate (20, 25+26) being arranged at the edge of the arc-quenching device (12). The insulating plate (20, 25+26) is fixed to the end section of an arc guide rail (14) by means of a fixing clip (22).

Abstract: A method and system for the systematic evaluation and rating of technical equipment using a data processing device (20), which works together with at least one data memory (21) and has an input (22) and display device (23), in which, step-by-step for the particular technical equipment, at least one first data set having economically relevant input parameters and at least one second data set having technically relevant input parameters are detected and/or established. For each data set, through knowledge-based predetermined numerical and/or logical linkages and knowledge-based predetermined weighting factors specific to the equipment, the established input parameters are brought together into an economic evaluation parameter FIx and a technical evaluation parameter RIx, respectively, and from the established evaluation parameters, through knowledge-based predetermined numerical linkages and weighting factors, a single overall resulting evaluation parameter EIx is determined.

Abstract: A control system for at least one vacuum interrupter gap in a high-voltage switching device includes at least one non-reactive control resistor disposed in parallel with the vacuum interrupter. The non-reactive control resistor merges concentrically onto the vacuum interrupter chamber and is mechanically and electrically coupled thereto.

Abstract: The invention describes a spring force terminal (1) for connecting electrical conductors (128), having a contact frame (3, 125), in which an electrical conductor (128) can be clamped against the contact frame (3, 125) by means of a clamping spring (7, 121) extending in the form of an arc over the contact frame (3, 125), and which is characterized in that the contact frame (3, 125) has two or more plug openings (9, 11, 124) and a retaining opening (13, 133), in that the clamping spring (7, 121) is held at a first free end in the retaining opening (13, 133) on the contact frame (3, 125), in that, at its second free end, the clamping spring (7, 121) is divided into a number of finger-like projections (23, 25, 122) which corresponds to the number of plug openings (9, 11, 124) by means of one or more slot-like cutouts (17), and in that each of the projections (23, 25, 122) is passed through in each case one of the plug openings (9, 11, 124), and a conductor (128) can be clamped tightly in each of the plug openings

Abstract: Packaging is disclosed for electrical installation equipment, in particular, made from a folded cardboard box, with two parallel first cardboard portions which form a front and a rear wall of the packaging and with two second cardboard faces extending perpendicular thereto, of which the cardboard face forms the bottom wall and the cardboard face forms the upper wall, with first flaps formed on the longitudinal edges of the front and rear wall and the bottom wall, which are attached to the longitudinal edges and able to be bent towards one another, so that they are in a single plane, with cover flaps attached to the edges of the upper wall extending in line with the longitudinal edges and which cover the first flaps and are bonded thereto, and with a third flap arranged on the upper wall which terminates on the edge of the upper wall opposing the front wall and is bonded from inside against the inner face of the front wall.

Abstract: A coriolis mass flow pick-up is disclosed, which can be inserted into a pipeline and has a fluid to be measured flowing through it during operation. The pick-up includes a single measuring pipe, which has an inlet end and an outlet end, an exciter arrangement, which causes the measuring pipe to carry out at least first bending oscillations, and at least two sensors for sensing movement of the measuring pipe. At least two elongate connection parts, which extend freely essentially parallel to the measuring pipe and whose central axes are displaced from the axis of the measuring pipe, are connected on the input side and the output side to the measuring pipe. The connection parts carry out second bending oscillations in the event of an oscillating measuring pipe, with the result that, by the second bending oscillations of the connection parts being superimposed by the oscillations of the measuring pipe, bending forces and torsional moments at the inlet and outlet ends of the measuring pipe are compensated.