Abstract: A method for operating a contactless ultrasound or radar fill level measuring device having at least one open distribution transmitter, at least one receiver and at least one evaluation unit having the following steps: emitting a transmitter signal by the transmitter, receiving a reflection signal reflected on a reflector by the receiver, evaluating the transmitter signal and/or the reflection signal with the evaluation unit which identifies a frequency shift between the transmitter signal and the reflection signal. By evaluating the determined frequency shift or a variable derived from the determined frequency shift, a filling event is detected, in which a filling stream at least partially passes through the transmitter signal. Furthermore, a contactless ultrasound or radar fill level measuring device which performs this method.

Abstract: Described and shown is a method for operating a Coriolis mass flowmeter (1) having at least one measuring tube (2), an oscillation exciting device (3) for exciting the measuring tube (2) to an oscillation (4), at least a first oscillation sensor (5) and a second oscillation sensor (6) and at least a first sensor signal path and a second sensor signal path. The object of the invention is to provide a method in which the measuring accuracy is increased compared to the prior art.

Abstract: A method for providing safe access of a mobile control unit (1) to a field device (2), wherein, in particular, the field device is protected against unauthorized access via a mobile control unit is achieved in that a connection for transmitting data is established between the mobile control unit (1) and the field device (2), that access data for access is exchanged, that a comparison is made between the access data and stored comparison data and a comparison result is generated, and that access of the mobile control unit (1) to the field device (1) is permitted based on the comparison result.

Abstract: A measuring device (1) for determining a measured variable has a sensor device (2) that generates at least one primary signal depending on the measured variable to be determined, an electronics device (3), a transition section (4) located between the sensor device (2) and the electronics device (3), an interface (5) arranged in the transition section (4) for transmitting energy and/or signals and having at least one signal line (7) between the sensor device (2) and the electronics device (3) are provided. To provide a measuring device that has an interface for transmitting signals or energy, which is easier to access than in the measuring device of the prior art, the interface (5) and the signal line (7) can be reversibly connected for transmitting signals to one another.

Abstract: An electrical function group with a control device and a first voltage regulator, the control device having a supply voltage input, the first voltage regulator having a first supply voltage input and a first supply voltage output and being designed for connection to a supply voltage source via the first supply voltage input and to supply the control device via the first supply voltage output, the first supply voltage output and the supply voltage input being connected together. A second voltage regulator is also provided having a second supply voltage input and a second supply voltage output, the second voltage regulator being designed to be connected to the supply voltage source via the second supply voltage input and to supply the first voltage regulator and the control device via the second supply voltage output, the second supply voltage output and the first supply voltage input being connected to one another.

Abstract: An antenna for a level meter and a method for operating such an antenna. The antenna has an antenna housing, at least one supply element and at least one lens, the lens having at least first and second lens surfaces. The supply element guides coupled electromagnetic radiation and emits electromagnetic radiation in the direction of the first lens surface. The electromagnetic radiation received via the first lens surface can be relayed and emitted via the second lens surface. The lens is formed at least in part of a porous material, wherein the porous material connects the first lens surface and the second lens surface to one another, and a flushing device is provided for impinging the lens with a medium that passes through the porous material and through the second lens surface via the first lens surface.

Abstract: A measuring arrangement for determining at least one measured variable with a sensor device (2), a signal outlet for outputting of an output signal and a current-adjusting device for adjusting the current of the output signal provides a measuring arrangement whose power consumption is at a maximum for preferably all states of operation. The object is obtained the measuring arrangement that a load current device and a regulating device are provided. Here, the regulating device controls the load current device based on a voltage drop via the current-adjusting device (4).

Abstract: Described and shown is a method for operating a flowmeter (1) having a measuring tube (2), wherein the flow (d) of a medium (4) through the measuring tube (2) is measured. A continuous dwell time of the measured flow (d) greater than or equal to a flow threshold (ds) is assigned to a flow interval (?tD,1, ?tD,2) and a flow volume (V1, V2) is determined from the measured flow (d) in the flow interval (?tD,1, ?tD,2). In each case, a continuous dwell time of the measured flow (d) less than the flow threshold (ds) is assigned to a zero flow interval (?tN,1). In each case, a deviation volume of the flow volume (V1, V2) in one of the flow intervals (?tD,1, ?tD,2) from a reference flow volume is determined and the deviation volume is compared to a threshold deviation volume.

Abstract: A measuring device with at least one sensor and at least one transmitter housing, wherein the transmitter housing has at least one terminal space and an electronics space adjacent to the terminal space and connected via a partition wall, wherein at least a first electronic device for the connection of supply and/or I/O lines is arranged in the terminal space and wherein at least a second electronic device is arranged in the electronics space with electronics for controlling the sensor, wherein the first electronic device and the second electronic device are electrically conductively connected to one another via a contacting unit, wherein the contacting unit is removably inserted into a recess of the partition wall. The A measuring device that is simple to produce and whose components can be particularly easily replaced is achieved by the contacting unit being firmly connected to the first electronic device.

Abstract: A measuring device with at least one sensor and at least one transmitter housing, the transmitter housing having at least one terminal space and an electronics space adjacent to the terminal space and connected via a partition wall, wherein at least a first electronic device for connecting supply and/or I/O lines is arranged in the terminal space and at least a second electronic device is arranged in the electronics space with electronics for controlling the sensor. The first and second electronic devices are electrically conductively connected to one another via a contacting unit. The second electronic device has a terminal unit which is connected to the contacting unit via a plug connection hat has a joining direction. The terminal unit is fixedly arranged in the joining direction and to float perpendicular to the joining direction such that it adapts to the position of the contacting unit when connecting to the contacting unit.

Abstract: A method for determining a property of a medium, wherein an excitation signal is generated and transmitted into the medium, a measuring signal is generated from the excitation signal transmitted into the medium, the measuring signal is measured, an amplitude of the excitation signal and an amplitude of the measuring signal are determined, and the property of the medium is determined using the amplitude of the excitation signal and the amplitude of the measuring signal. To provide a method in which the accuracy of determination of the property of the medium is improved, the amplitude of the excitation signal is determined by digitizing the excitation signal and applying a lock-in method to the digitized excitation signal and determining the amplitude of the measuring signal by digitizing the measuring signal and applying the lock-in method to the digitized measuring signal.

Abstract: A magnetic-inductive flowmeter for measuring the flow of a conductive medium having a measuring tube, a magnetic field generator, a magnetic circuit device for guiding the measuring magnetic field, electrodes for detecting a flow-dependent electrical measuring voltage when the conductive medium flows through the measuring tube, and an electronic control and evaluation unit, and a method for operating the magnetic-inductive flowmeter. To make the magnetic-inductive flowmeter which smaller and cheaper, a sensor for detecting a physical disturbance variable acting on the magnetic circuit device is arranged on the magnetic circuit device, wherein the measuring magnetic field is influenced by the physical disturbance variable and wherein the control and evaluation unit is designed such that it detects and signals an exceeding or falling below of a pre-definable limit value of the physical disturbance variable and/or performs a correction of the effect of the physical disturbance variable on the flow measurement.

Abstract: A method for operating a resonant measurement system has at least one: adjustment device, electric actuation device, electromagnetic vibration generator, vibrating element, and vibration recorder. The adjustment device generates an output signal to trigger the electric actuation device, the electric actuation device provides an electric excitation signal to the electromagnetic drive, the electromagnetic drive excites the vibrating element to the same vibration in at least one normal mode, and the excited vibration is sensed by the vibration recorder and is output as an output signal. To approach, maintain and readjust a resonant point as an operating point of the resonant measurement system, the phase difference between the output signal of the vibration recorder and the adjustment device output signal is acquired, an adjustment deviation is calculated from a predefined phase difference and the acquired phase difference, and the adjustment deviation provided to the adjustment device as an input signal.

Abstract: A method for secure communication with a field measuring device of process measuring technology is described and shown. Upon contact by an external communication means with a web server via a communication interface, a first authenticity check of an external communication means is carried out by the field measuring device and a second authenticity check of the external communication means is carried out. After successful completion of the first authenticity check and the second authenticity check, further communication of the external communication means with the web server is authorized by the field measuring device.

Abstract: A measuring arrangement and a measuring device having a sensor device, a processing device, a storage device, an interface and a control device that allows for a simplified testing of the functionality of the measuring device is achieved in that the control device retrieves externally provided data via the interface and performs a test of the measuring device. The test thereby involves the control device determining a reference value from the externally provided data, comparing the reference value to a measured value generated by the processing device and generating a comparison result based thereupon. Alternatively, the test involves the control device using the externally provided data for the generation of new calculation data to be stored in the storage device and storing the new calculation data in the storage device.

Abstract: A field device and a method for parameterization of a field device are disclosed. The method includes transmitting a parameter value to the field device from a parameterization unit. The method also includes generating a feedback character string from the received parameter value by the field device and the transmitting feedback character string to the parameterization unit. The method further includes outputting the received feedback character string by the parameterization unit so that it is understandable for the user.

Abstract: A method for operating an inductive conductivity meter having a transmitting coil, a receiving coil and a terminating impedance device, the transmitting coil having a transmitting coil terminal, the receiving coil having a receiving coil terminal and the terminating impedance device having a terminating impedance, wherein the receiving coil is terminated with the terminating impedance device and wherein the transmitting coil and the receiving coil are inductively coupled with one another by an electrically conductive medium. To provide an improved accuracy of a determination of a conductivity of a medium a setpoint input impedance is specified, an input impedance is determined at the transmitting coil terminal, the terminating impedance is set such that the input impedance is matched to the setpoint input impedance, and a conductivity of the medium is determined using the adjusted input impedance and the set termination impedance.

Abstract: A method for operating a measuring site (1), wherein a measured variable is determined by a sensor (5) that can be calibrated and in which an exact as possible planning of activities, to which, for example, calibration or sensor replacement belong, is possible is obtained, in accordance with the method, in that the sensor (5) is calibrated at presettable calibration points in time, that at least one parameter in conjunction with calibration is stored as a part of reference data of the sensor (5) and that at least one aging-dependent variable of a sensor (8, 6) differing from the sensor (5) is estimated based on reference data of the sensor (5).

Abstract: A device for receiving an electronics assembly having a closed housing with a housing wall, at least one electronic component, a holder and a fan with a fan housing, wherein the electronic component, the holder and the fan are arranged within the housing, and the fan is arranged in the holder. To provide a device for receiving an electronics assembly that enables an alternative cooling of the electronics assembly in a closed housing is achieved in that the fan is designed as a revolving blade fan and by the fact that the fan generates a continuous air flow for cooling the electronic unit during operation.

Abstract: A fill level switch for determining a level limit of a medium in a container, has a sensor unit having an antenna unit, a process window for protecting the sensor unit and for connection to a container wall, an electronic unit and a sensor housing. The antenna unit has at least a first emitting element for emitting a first electromagnetic transmission signal, at least a feed line, at least a reference surface having a reference potential and at least a dielectric layer, wherein the dielectric layer is arranged between the reference surface and the emitting element. an aperture coupling is provided via which the emitting element is fed by the feed line during operation. The reference surface has an opening for passage of the electromagnetic transmission signal, and the first emitting element is arranged such that it has direct contact with the medium during operation.