Abstract: An apparatus for determining and/or monitoring a process variable of a medium in a container. including: a probe unit, which has a sensor electrode and a guard electrode; and an electronics unit, which supplies the sensor electrode with an activating signal and which supplies the guard electrode with a guard signal; An amplifying unit; and a limiting element arranged in series between the guard electrode and the output of the amplifying unit. The amplifying unit supplies via the limiting element the guard electrode with the guard signal; and the amplifying unit supplies via the limiting element the sensor electrode with the activating signal. The evaluating unit is provided, which determines and/or monitors the process variable based on an electrical current signal measurable at the sensor electrode, and the activating signal and/or the guard signal.

Abstract: An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one probe unit; and at least one electronics unit, which supplies the probe unit with an operating signal and which receives from the probe unit a received signal. The probe unit includes at least one probe electrode and at least one guard electrode; and the probe electrode and the guard electrode are surrounded, at least partially, by at least one insulating unit. The the insulating unit has, in the region of the guard electrode, a smaller thickness than in the region of the probe electrode.

Abstract: An electronic device, comprising: a housing having at least one chamber; a magnetic element guideway for accommodating and guiding a magnetic element, wherein the magnetic element guideway enables positioning of an accommodated magnetic element in at least two magnetic element positions relative to the housing. A control and evaluation circuit is arranged in the chamber and has two Hall sensors for registering at least one component of a first local magnetic field at the respective site of the first Hall sensor and for the providing, in each case, a signal, which depends on the local magnetic field registered at the first site.

Abstract: A measuring apparatus for outputting a measurement signal representing the difference between a first pressure and a second pressure. The apparatus includes a first pressure measuring transducer module for outputting a sequence of first signals representing the first pressure; a second pressure measuring transducer module for producing a sequence of second signals representing the second pressure; an evaluation module for ascertaining a sequence of difference values between the two pressure values and for outputting a sequence of fourth signals, which, in each case, represent the pressure difference; a first cable connection between the first and second pressure measuring transducer module; and a second cable connection between the second pressure measuring transducer module and the evaluation module. The modules are separated spatially from one another.

Abstract: A method for determining a value of a measured variable, which is a function of a first auxiliary measured variable and at least a second auxiliary measured variable, comprising: registering and providing a sequence of measured values of the first auxiliary measured variable over at least a first time range; providing a value of the second auxiliary measured variable, wherein the point in time of registering the provided value lies in the first time range; selecting a value of the first auxiliary measured variable from the sequence of measured values of the first auxiliary measured variable as a function of information concerning point in time of registering the provided value of the second auxiliary measured variable; and ascertaining a value of the measured variable as a function of the selected value of the first auxiliary measured variable and the value of the second auxiliary measured variable.

Abstract: An apparatus for determining and/or monitoring at least one process variable. The apparatus includes: at least one energy input, via which the apparatus receives energy for operation of the apparatus. The invention includes features that: at least one measuring unit is provided, which measures energy applied to the energy input; and at least one control unit is provided, which, based on comparison of the measured energy with a desired value of the energy requirement, controls at least one unit of the apparatus.

Abstract: A configurable field device for automation technology with a partially dynamically reconfigurable logic chip FPGA, in which function modules are dynamically configured during runtime, and to a method for operating the configurable field device.

Abstract: An apparatus for ascertaining and/or monitoring a process variable. The apparatus includes a sensor element, and at least one electronics unit, which, for measuring the process variable, supplies the sensor element with an electrical exciter signal, receives an electrical measurement signal from the sensor element and evaluates the measurement signal with respect to the process variable. An analog-digital converter is provided in the electronics unit. For measuring the process variable, the electronics unit supplies the sensor element with a first exciter signal and a second exciter signal, timewise one after the other, in such a manner, that the first exciter signal and the second exciter signal have a settable phase (?)relative to one another.

Abstract: An apparatus for capacitive ascertaining and/or monitoring of the fill level of a medium in a container. The apparatus includes at least one probe unit, which is electrically insulated relative to the medium, and at least one electronics unit, which supplies the probe unit with at least one electrical, actuating signal, receives an electrical measurement signal from the probe unit, and evaluates the measurement signal as regards the fill level The actuating signal is an electrical alternating voltage signal. The electronics unit is embodied in such a manner that it supplies the probe unit with the actuating signal in a measuring phase, and supplies the probe unit with a test signal in a test phase, and that it receives a test measurement signal in the test phase from the probe unit, wherein the test signal is selected in such a manner that it has at least one section with an essentially constant voltage value.

Abstract: A method for servicing, especially checking, an apparatus for capacitive ascertaining and/or monitoring at least one process variable of a medium, wherein the apparatus has at least one probe unit with a probe electrode and an auxiliary electrode. The probe electrode and/or the auxiliary electrode are/is supplied at least with one test signal or connected with at least one electrical potential, that at least one response signal is tapped from the probe unit, and that, at least from the response signal and a predeterminable desired value, information is obtained concerning the apparatus.

Abstract: A measuring apparatus for outputting a measurement signal representing the difference between a first pressure and a second pressure. The apparatus includes a first pressure measuring transducer module for outputting a sequence of first signals representing the first pressure; a second pressure measuring transducer module for producing a sequence of second signals representing the second pressure; an evaluation module for ascertaining a sequence of difference values between the two pressure values and for outputting a sequence of fourth signals, which, in each case, represent the pressure difference; a first cable connection between the first and second pressure measuring transducer module; and a second cable connection between the second pressure measuring transducer module and the evaluation module. The modules are separated spatially from one another.

Abstract: A method for manufacturing-side calibration of a measuring device for capacitive fill level measurement of a medium, wherein at least one probe unit of the measuring device is activated with an electrical, alternating voltage of a predeterminable frequency. As a function of the frequency of the activating signal, a conductivity range is determined, within which the fill level measurement is essentially independent of a change of the electrical conductivity of the medium; for such conductivity range, at least a first reference matching between a predeterminable, first fill-level value and a first capacitance value belonging to the first fill-level value is produced; and the first reference matching between the first fill-level value and the first capacitance value is recorded. Additionally, the invention relates to a corresponding measuring device.

Abstract: A configurable field device for automation technology with a partially dynamically reconfigurable logic chip FPGA, in which function modules are dynamically configured during runtime, and to a method for operating the configurable field device.

Abstract: An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one probe unit; and at least one electronics unit, which supplies the probe unit with an operating signal and which receives from the probe unit a received signal. The probe unit includes at least one probe electrode and at least one guard electrode; and the probe electrode and the guard electrode are surrounded, at least partially, by at least one insulating unit. The the insulating unit has, in the region of the guard electrode, a smaller thickness than in the region of the probe electrode.

Abstract: The invention relates to an apparatus for determining and/or monitoring at least one process variable of a medium (1). The apparatus includes at least one probe unit (3) and at least one electronics unit (4), which supplies the probe unit (3) with an electrical, exciter signal and which receives from the probe unit an electrical, measurement signal. The invention includes, that the probe unit (3) has at least one inner electrode (5) and at least one outer electrode (6) surrounding the inner electrode.

Abstract: An apparatus for mounting a plurality of heat sinks onto a circuit board during testing while the circuit board is tested in a fixed manufacturing station. The apparatus has a polygonal shaped frame with a size that is limited to an area on the circuit board which contains a plurality of data processing elements to be cooled. At least four apertures are on the frame, wherein each of the apertures corresponds to a different one of the plurality of data processing elements to be cooled. A slot is positioned on the frame to receive oversized processing elements. At least four pillars extend from the frame and mount into mounting holes provided on the circuit board. The apertures on the frame support the heat sinks above the data processing elements to be cooled. No additional screws, adhesives, clips or other fixing mechanisms are required to secure the heat sinks.

Abstract: An apparatus for determining and/or monitoring at least one process variable. The apparatus includes: at least one energy input, via which the apparatus receives energy for operation of the apparatus. The invention includes features that: at least one measuring unit is provided, which measures energy applied to the energy input; and at least one control unit is provided, which, based on comparison of the measured energy with a desired value of the energy requirement, controls at least one unit of the apparatus.

Abstract: An apparatus for determining and/or monitoring a process variable of a medium in a container. including: a probe unit, which has a sensor electrode and a guard electrode; and an electronics unit, which supplies the sensor electrode with an activating signal and which supplies the guard electrode with a guard signal; An amplifying unit; and a limiting element arranged in series between the guard electrode and the output of the amplifying unit. The amplifying unit supplies via the limiting element the guard electrode with the guard signal; and the amplifying unit supplies via the limiting element the sensor electrode with the activating signal. The evaluating unit is provided, which determines and/or monitors the process variable based on an electrical current signal measurable at the sensor electrode, and the activating signal and/or the guard signal.

Abstract: The invention relates to an apparatus for ascertaining and/or monitoring a process variable. The apparatus includes a sensor element (1), and at least one electronics unit (2), which, for measuring the process variable, supplies the sensor element (1) with an electrical exciter signal (ES1, ES2), receives an electrical measurement signal (MS1, MS2) from the sensor element (1) and evaluates the measurement signal (MS1, MS2) with respect to the process variable. An analog-digital converter (3) is provided in the electronics unit (2). The invention includes that, for measuring the process variable, the electronics unit (2) supplies the sensor element (1) with a first exciter signal (ES1) and a second exciter signal (ES2), timewise one after the other, in such a manner, that the first exciter signal (ES1) and the second exciter signal (ES2) have a settable phase (?) relative to one another.

Abstract: An apparatus for mounting a plurality of heat sinks onto a circuit board during testing while live circuit board is tested in a fixed manufacturing station. The apparatus has a polygonal shaped frame with a size that is limited to an area on the circuit board which contains a plurality of data processing elements to be cooled. At least four apertures are on the frame, wherein each of the apertures corresponds to a different one of the plurality of data processing elements to be cooled. A slot is positioned on the frame to receive oversized processing elements. At least four pillars extend from the frame and mount into mounting holes provided on the circuit board. The apertures on the frame support the heat sinks above the data processing elements to be cooled. No additional screws, adhesives, clips or other fixing mechanisms are required to secure the heat sinks.