Abstract: A measuring arrangement of the invention includes: At least one measuring device, which generates, repeatedly during operation, measured values, especially digital, measured values, representing the at least one measured variable to be registered; as well as an electronic data processing system superordinated to the at least one measuring device, especially a data processing system which is spatially distributed and/or spatially remote from the measuring device. Measuring device and data processing system are connected together by means of at least two line-pairs, through each of which an electrical current flows, at least at times, during operation. According to the invention, the measuring device transmits the internally generated, measured values to the data processing system via both line-pairs. In this way, it is then possible to transmit a plurality of measured values simultaneously, when each of the two line-pairs is embodied as part of a two-conductor current-loop.

Abstract: The field-device electronics includes an electric current adjuster, through which a supply current flows, driven by a supply voltage provided by the external energy supply and adjusted by the current adjuster. Additionally, the field-device electronics includes an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit feeding the internal operating and evaluating circuit. Provided in the supply circuit is a first useful-voltage controller flowed-through by a first component of the supply current, and a second useful-voltage controller flowed through, at least at times, by a second current component of the supply current, and providing in the field-device electronics a second internal, useful voltage. Further, the two useful-voltage controllers are galvanically separated from one another.

Abstract: A measuring arrangement of the invention includes: At least one measuring device, which generates, repeatedly during operation, measured values, especially digital, measured values, representing the at least one measured variable to be registered; as well as an electronic data processing system superordinated to the at least one measuring device, especially a data processing system which is spatially distributed and/or spatially remote from the measuring device. Measuring device and data processing system are connected together by means of at least two line-pairs, through each of which an electrical current flows, at least at times, during operation. According to the invention, the measuring device transmits the internally generated, measured values to the data processing system via both line-pairs. In this way, it is then possible to transmit a plurality of measured values simultaneously, when each of the two line-pairs is embodied as part of a two-conductor current-loop.

Abstract: An electric current controller for field-device electronics controls and/or modulates the supply current. The supply current is driven by a supply voltage provided by an external energy supply. The field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit, the internal input voltage being derived from the supply voltage for feeding the internal operating and evaluating circuit. In the supply circuit is a voltage controller flowed-through, at least at times, by a first component of the supply current. The voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level. Moreover, the supply circuit has a second voltage controller flowed through, at least at times, by a second current component of the supply current. The second voltage controller provides in the field-device electronics a second internal.

Abstract: A process measuring device including: A first processor, which performs a measured value processing with a first algorithm in first processing cycles; and a second processor, which is responsible for coordination and/or communication tasks. The second processor reads, in time intervals which are greater than the first processing cycle, a control data set from the first processor, and executes the first algorithm on the basis of the control data set, in order to verify the correct functioning of the first processor.

Abstract: Field-device electronics including an electric current adjuster, through which a supply current flows is driven by a supply voltage provided by the external energy supply and adjusted by the current adjuster. Additionally, the field-device electronics includes an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit feeding the internal operating and evaluating circuit. Provided in the supply circuit is a first useful-voltage controller flowed-through, by a first component of the supply current and a second useful-voltage controller flowed through, at least at times, by a second current component of the supply current and providing in the field-device electronics a second internal, useful voltage. The second useful voltage controller is fed by the first useful voltage delivered by the first useful voltage controller and/or a secondary voltage drived from the first useful voltage.

Abstract: A Coriolis mass flow meter and method for compensation of transmission errors of its input circuit, wherein a high accuracy of measurement is achievable by determining the transmission error of the input circuit of at least two input branches on the basis of at least one reference signal, which travels simultaneously through all input branches.

Abstract: A measuring arrangement of the invention includes: At least one measuring device, which generates, repeatedly during operation, measured values, especially digital, measured values, representing the at least one measured variable to be registered; as well as an electronic data processing system superordinated to the at least one measuring device, especially a data processing system which is spatially distributed and/or spatially remote from the measuring device. Measuring device and data processing system are connected together by means of at least two line-pairs, through each of which an electrical current flows, at least at times, during operation. According to the invention, the measuring device transmits the internally generated, measured values to the data processing system via both line-pairs. In this way, it is then possible to transmit a plurality of measured values simultaneously, when each of the two line-pairs is embodied as part of a two-conductor current-loop.

Abstract: Field-device electronics including an electric current adjuster, through which a supply current flows. The electric current adjuster adjusts and/or modulates the supply current. The supply current is driven by a supply voltage provided by the external energy supply. Additionally, the field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit lying at a field-device electronics, internal input voltage derived from the supply voltage and feeding the internal operating and evaluating circuit. Provided in the supply circuit is a useful-voltage controller flowed-through, at least at times, by a first component of the supply current. The useful-voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level.

Abstract: Field-device electronics including an electric current adjuster, through which a supply current flows. The electric current adjuster adjusts and/or modulates the supply current. The supply current is driven by a supply voltage provided by the external energy supply. Additionally, the field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit lying at a field-device electronics, internal input voltage derived from the supply voltage and feeding the internal operating and evaluating circuit. Provided in the supply circuit is a useful-voltage controller flowed-through, at least at times, by a first component of the supply current. The useful-voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level.

Abstract: A process measuring device including: A first processor, which performs a measured value processing with a first algorithm in first processing cycles; and a second processor, which is responsible for coordination and/or communication tasks. The second processor reads, in time intervals which are greater than the first processing cycle, a control data set from the first processor, and executes the first algorithm on the basis of the control data set, in order to verify the correct functioning of the first processor.

Abstract: Field-device electronics including an electric current controller, through which a supply current flows. The electric current controller controls and/or modulates the supply current. The supply current is driven by a supply voltage provided by the external energy supply. Additionally, the field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit lying at a field-device electronics, internal input voltage derived from the supply voltage and feeding the internal operating and evaluating circuit. Provided in the supply circuit is a voltage controller flowed-through, at least at times, by a first component of the supply current. The voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level.

Abstract: The invention relates to a method for determining the filling level of a medium in a container. A mixer that has at least one mixer blade and a mixer frequency (f<1>R</1>) is disposed in the container. Measuring signals are emitted at a predetermined measuring frequency (f<1>M</1>) towards the medium. The measuring signals reflected on the surface of the medium are received and evaluated by a run time method. The aim of the invention is to provide a device which allows for a reliable measurement of the filling level of a medium in a container provided with a mixer. To this end, the measuring frequency (f<1>M</1>) of the measuring signal having the mixer frequency (f<1>R</1>) of the mixer is synchronized (f<1>M</1>=n f<1>R</1>with n ? N) and that the measuring frequency (f<1>M</1>) is shifted by a defined phase (?) with respect to the mixer frequency (f<1>R</1>).

Abstract: An electric current controller for field-device electronics controls and/or modulates the supply current. The supply current is driven by a supply voltage provided by an external energy supply. The field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit, the internal input voltage being derived from the supply voltage for feeding the internal operating and evaluating circuit. In the supply circuit is a voltage controller flowed-through, at least at times, by a first component of the supply current. The voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level. Moreover, the supply circuit has a second voltage controller flowed through, at least at times, by a second current component of the supply current. The second voltage controller provides in the field-device electronics a second internal.

Abstract: A Coriolis mass flow meter and method for compensation of transmission errors of its input circuit, wherein a high accuracy of measurement is achievable by determining the transmission error of the input circuit of at least two input branches on the basis of at least one reference signal, which travels simultaneously through all input branches.

Abstract: Field-device electronics including an electric current controller, through which a supply current flows. The electric current controller controls and/or modulates the supply current. The supply current is driven by a supply voltage provided by the external energy supply. Additionally, the field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit lying at a field-device electronics, internal input voltage derived from the supply voltage and feeding the internal operating and evaluating circuit. Provided in the supply circuit is a voltage controller flowed-through, at least at times, by a first component of the supply current. The voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level.

Abstract: The circuit configuration includes a measuring capacitor having a variable capacitance, which is set by means of a physical measured quantity to be detected, a reference capacitor and a buffer amplifier. An input of the buffer amplifier is at least temporarily coupled to the measuring capacitor such that an output of the buffer amplifier supplies a signal voltage essentially proportional to a measurement voltage occurring on the measuring capacitor. At the beginning of each measuring cycle, the measuring capacitor is discharged to a predetermined residual charge, whereas the reference capacitor is charged to a predetermined reference charge. Afterwards, the reference charge is transferred as completely as possible from the reference capacitor to the measuring capacitor. To this end, the input and output of the buffer amplifier are temporarily coupled to one another via the first reference capacitor during operation.

Abstract: The invention relates to a method and a device for determining the level of a filling (1) in a container (2). The aim of the invention is to provide a method and a device for measuring said level which are economical to carry out/produce and which offer an especially high degree of measuring accuracy.

Abstract: The invention relates to a method for determining the filling level of a medium in a container. A mixer that has at least one mixer blade and a mixer frequency (f<1>R</1>) is disposed in the container. Measuring signals are emitted at a predetermined measuring frequency (f<1>M</1>) towards the medium. The measuring signals reflected on the surface of the medium are received and evaluated by a runtime method. The aim of the invention is to provide a device which allows for a reliable measurement of the filling level of a medium in a container provided with a mixer. To this end, the measuring frequency (f<1>M</1>) of the measuring signal having the mixer frequency (f<1>R</1>) of the mixer is synchronized (f<1>M</1>=n f<1>R</1> with n?N) and that the measuring frequency (f<1>M</1>) is shifted by a defined phase (?) with respect to the mixer frequency (f<1>R</1>).

Abstract: The circuit configuration includes a measuring capacitor (KM1) having a variable capacitance, which is set by means of a physical measured quantity (p) to be detected, a reference capacitor (KRef1) and a buffer amplifier (OV1). An input of the buffer amplifier (OV1) is at least temporarily coupled to the measuring capacitor (KM1) such that an output of the buffer amplifier (OV1) supplies a signal voltage essentially proportional to a measurement voltage occurring on the measuring capacitor (KM1). At the beginning of each measuring cycle, the measuring capacitor (KM1) is discharged to a predetermined residual charge, whereas the reference capacitor (KRef1) is charged to a predetermined reference charge. Afterwards, the reference charge is transferred as completely as possible from the reference capacitor (KRef1) to the measuring capacitor (KM1). To this end, the input and output of the buffer amplifier (OV1) are temporarily coupled to one another via the first reference capacitor (KRef1) during operation.