Abstract: A method for adjusting, calibrating and/or checking a function of a photometric sensor, which is embodied for measuring at least one measured variable in a medium, wherein the sensor works with at least one measuring wavelength and at least one reference wavelength, comprising the steps as follows: mounting a calibration insert in a receptacle provided therefor at the sensor, adjusting, calibrating and/or performing the function check, and removing the calibration insert, characterized in that the transmittance of light of the measuring wavelength and the transmittance of light of the reference wavelength through the calibration insert are different. The invention relates further to a calibration insert.

Abstract: A measuring system having at least one field device with at least one display apparatus, wherein the display apparatus is embodied for displaying data, information and diagnostic reports of the field device, wherein the field device is supplied with voltage via a voltage input. A monitoring system is provided, which monitors the voltage at the voltage input and recognizes a voltage reduction, and the field device is embodied to execute a service program, which performs steps to shut down the field device in the case of a detected voltage reduction, characterized in that the service program is embodied, in the case of a detected voltage reduction, to show on the display apparatus a diagnostic report, which describes the state of the field device. The invention relates further to a method for operating the measuring system.

Abstract: An absorption measurement system, flexibly usable over a large measuring range, for measuring at least one property of a medium reflected in its absorption behavior, especially a property such as an absorption coefficient (?). The absorption measurement system comprises: a measuring chamber filled with the medium in measurement operation, in which radiatable beam paths usable as measuring paths and of different lengths, extend completely through the medium; a transmitting unit, which transmits radiation along the measuring paths through measuring chamber in measurement operation; a measuring and receiving unit, which receives radiation passing through measuring chamber on the measuring paths and measures its radiation intensities dependent on the property of the medium and the lengths of the measuring paths; and a measuring electronics, which determines the property based on the measured radiation intensities and the lengths of measuring paths.

Abstract: A method for performing automated affinity based assays for determining an analyte content of samples of a process medium, wherein individual samples are fed in time intervals sequentially to a measuring system, and wherein the measuring system, in each case, registers a measured value of a measured variable dependent on the analyte content of the samples, characterized in that at least one of the samples is diluted before it is fed to the measuring system, wherein a dilution factor to be applied for dilution of a sample is ascertained from a measured value registered based on a sample supplied earlier to the measuring system.

Abstract: An apparatus for automated determining of at least two different process parameters of a process liquid of a process, especially a bioprocess, comprising: a first measuring cell, which is embodied to provide a first measurement signal dependent on a first process parameter of a first sample of the process liquid; a second measuring cell, which is embodied to provide a second measurement signal dependent on a second process parameter of a second sample of the process liquid; and a control and evaluation system, which serves for monitoring and/or controlling the process, and which is embodied to receive and to process the first and second measurement signals, especially based on the first measurement signal to determine a measured value of the first process parameter and based on the second measurement signal to determine a measured value of the second process parameter; wherein the first measurement signal and the second measurement signal serve different functions in the context of the monitoring and/or contr

Abstract: A method for signal transmission between a first and a second system; wherein the first and the second system are connected with one another via a current loop. A direct current signal is transmitted in a first frequency range and an alternating current signal in a second frequency range via the current loop. The direct current signal and the alternating current signal are superimposed and the alternating current signal is used for digital signal transmission and the direct current signal is used for analog signal transmission. By means of a control unit, a first data stream is produced, in which the direct current signal and alternating current signal to be set in the current loop are digitally encrypted. The first data stream is transmitted to an electrical current output circuit and the transmitted first data stream is converted by the electrical current output circuit into an electrical current signal.

Abstract: A measuring system for measuring absorption or scattering of a medium at a plurality of different wavelengths, whereby the measurements for the different wavelengths are performable as simultaneously and as accurately as possible. The measuring system comprises: a measuring chamber; a transmitting unit, which sends light of its respective wavelength into the measuring chamber; a control, which operates each light source with a different time modulation of transmission intensity for each wavelength; a detector for measuring a total radiation intensity. The total radiation intensity corresponds to a superpositioning of each intensity portion striking the detector for each wavelength; and a signal processing system, which determines for each of the wavelengths the associated intensity portion based on the total radiation intensity measured by detector and the modulations.

Abstract: The invention relates to A sensor end module, comprising: a sensor cap having a first connecting element and a sensorially active element for contact with a medium; and a memory module, comprising: a housing having a second connecting element, wherein the second connecting element enters into a shape- and/or force interlocking connection with the first connecting element; a memory element, wherein the memory element contains information concerning the sensorially active element the memory element is arranged in or on the housing; a first communication interface for sending and/or receiving information and/or data, and wherein the first communication interface is in electrical contact with the memory element. Furthermore, the invention relates to a sensor and a measuring system.

Abstract: A tool and a retractable assembly for measuring at least one measured variable of a medium in a containment, comprising: an essentially cylindrical housing; an immersion tube, which is movable axially in the housing between a service position run out from the medium and a process position run into the medium; and an engagement apparatus secured on the housing; wherein a movable piston is provided in the engagement apparatus and at least a first position and a second position of the piston are provided. The engagement apparatus holds the immersion tube in the service position when the piston is located in the first position, especially when no energy supply is present, and the engagement apparatus holds the immersion tube in an intermediate position between the service position and the process position and prevents further movement of the immersion tube in the direction of the medium when the piston is located in the second position.

Abstract: A plug-in module for a liquid- or gas-sensor comprised of a sensor module (SM) and a sensor module head (SMH), which can be releasably connected together, and which, when connected, enable data and energy transfer via a galvanically decoupled transfer section, wherein the sensor module head (SMH) includes an energy supply unit for operating the sensor module head (SMH) and the sensor module (SM), as well as a data memory (MEM), in order to store sensor data received from the sensor module (SM).

Abstract: A transmitter and a method for mounting a transmitter on a panel, wherein the panel is a door or wall of an electrical cabinet, a display panel, a control panel or a diaphragm, wherein the transmitter includes a display module and a computer module, wherein the display module includes at least a first securement means and a cable, and the display module is connectable via the cable with the computer module. The method comprises the steps of: drilling at least a first hole in the panel, wherein the first hole is less than the area of the display module lying against the panel bringing the cable from a first side of the panel through the first hole to a second side of the panel securing the display module to the panel using a second securement means complementary to the first securement means securing the computer module to the second side, and connecting the computer module with the display module via the cable.

Abstract: In a method for servicing a field device of process automation technology having at least two measurement channels, with the assistance of an external service unit, separate device descriptions are provided in the service unit for the measurement channels. The individual measurement channels can be invoked on the service unit via the corresponding device descriptions as logical units, so that, in servicing, the field device appears to the user as at least two logically independent field devices.

Abstract: A conductive conductivity sensor, comprising: a probe immersible in a measured medium. The probe has an inner space, which is connected to an environment of the probe via at least one opening leading out from the inner space and in which are arranged two electrodes, which are supplied with an alternating voltage during measurement operation and which have inner surfaces facing into the inner space and outwardly facing outer surfaces covered by insulation, wherein the inner surfaces have edge surfaces adjoining the openings. Measuring characteristics of the conductivity sensor have a smallest possible dependence on objects arranged in the vicinity of the conductivity sensor. At least the edge surfaces adjoining one of the openings have a surface geometry directing thereon beginning or ending, electric field lines in a direction facing away from such opening and into the inner space.

Abstract: An arrangement with a superordinated control unit and at least one intelligent field device connectable with the control unit, wherein associated with the control unit is at least one interface with a connection element for accommodating a corresponding connection counterpart. The connection counterpart is associable with an interface module, wherein associated with the interface module is a software protection system securing accessing of the field device. The interface module permits communication between the corresponding field device and the superordinated control unit, wherein associated with the superordinated control unit is a software-protected processing program for the field device, and wherein the processing program is started or enabled via the software protection system, when the connection counterpart of the interface module of the field device is connected with the connection element of the control unit.

Abstract: A plug connecting unit for connecting a cable circuit in a cable circuit housing with a sensor module in a sensor module housing, comprising a wireless interface for energy- and/or data transmission between the cable circuit and the sensor module. A first section of the wireless interface is arranged in the cable circuit and a second section of the wireless interface is arranged in the sensor module. The wireless interface is surrounded by a magnetic shielding and the magnetic shielding is arranged in the cable circuit housing and/or in the sensor module housing.

Abstract: An arrangement for measuring process variables of a medium. The arrangement includes a housing embodied for accommodating a measuring apparatus for determining the physical and/or chemical process variable(s), wherein arranged in the housing is at least one window and at least the window contacts the medium, and wherein an oscillatory transducer is provided for transmitting sound waves, characterized in that the window is connected rigidly with the housing, the oscillatory transducer is arranged in a peripheral module having a module housing. The peripheral module is so arranged that the oscillatory transducer transmits the sound waves toward the window, wherein the sound waves pass through the module housing at an exit area, and the peripheral module is so arranged that medium is located in the region of the window and exit area.

Abstract: An electrochemical half cell for application in an electrochemical sensor, wherein a fill electrolyte of the half cell is in contact with an external medium via a liquid junction, characterized in that the liquid junction is controllable as regards its permeability and/or its flow.

Abstract: A potentiometric probe comprising: a housing, which has a first chamber, in which a reference half-cell is formed, which is in communication with a medium surrounding the housing via an electrolytic contact location arranged in a wall of the housing. The housing has a second chamber, in which a measuring half cell is formed, wherein the second chamber is closed on one end by a measuring membrane, such that a surface area of the measuring membrane facing away from the second chamber is in contact with the medium surrounding the housing, and wherein the measuring half cell has a lengthwise extension between the measuring membrane and a closure element bounding the measuring half cell on an end lying opposite the measuring membrane. A quotient of a separation of the measuring membrane from the closure element and an outer diameter of the housing amounts to less than 5, especially less than 2.

Abstract: A method for calibrating and/or adjusting a sensor, especially an electrochemical, electrophysical or optical sensor, wherein the sensor has an evaluating electronics, which is embodied in such a manner, that a signal produced by the sensor is essentially non-changeable by a subsequent transmission. The sensor is calibrated and/or adjusted at a site other than a later measuring location or a later measuring environment or the like.

Abstract: A measuring apparatus, comprising at least a first light source and a second light source for transmitting light; at least one light receiver for receiving light at least of a first received wavelength and a second received wavelength; at least one dispersing element for bending and/or refracting light; wherein the light transmitted by the light sources strikes the dispersing element and is so turned by the dispersing element that it strikes the light receiver. The first light source is arranged at a first angle relative to the dispersing element and the second light source at a second angle relative to the dispersing element, wherein the second angle differs from the first angle. The first angle is so embodied that the wavelength of the light turned by the dispersing element corresponds to the first received wavelength, and wherein the second angle is so embodied that the wavelength of the light turned by the dispersing element corresponds to the second received wavelength.