Abstract: The present disclosure relates to a sensor cap for an optochemical sensor for determining or monitoring at least one analyte present in a medium having a substantially cylindrical plug-in component and a sleeve-shaped outer component. The plug-in component has an optical component with a convex-shaped surface region for optimal flow, and the optical component at least partially consists of a material transparent to measuring radiation. On the surface region of the optical component is an analyte-sensitive matrix having at least one functional layer. The plug-in component and the sleeve-shaped component are designed such that the connecting region coming into contact with the medium is between the plug-in component and the sleeve-shaped outer component in the edge region of the optical component or is at a radial distance from the edge region of the optical component, and is sealed, without a gap, facing the medium.

Abstract: The present disclosure relates to a retractable assembly for immersion, flow and attachment measuring systems in analytical process technology that includes an essentially hollow cylindrically shaped housing having a service chamber formed in its interior, where the housing includes an encircling groove open to its interior, where the groove includes an expansion space expanding the groove, where the expansion space is arranged on the side of the groove facing away from the interior, and where the housing includes a leakage path, which connects the expansion space with the environment.

Abstract: A measuring arrangement, which includes: a sensor, wherein the sensor is embodied to produce a measurement signal correlated with a measured variable, a first interface, an evaluation circuit least one computer system and a memory associated with the computer system, as well as a third interface, especially a third interface embodied as a fieldbus interface, a first superordinated data processing system, with which the evaluation circuit is connected via the third interface, wherein in the memory associated with the computer system of the evaluation circuit a computer program executable by the computer system is stored, wherein the computer program serves for additional processing of the measurement signal as well as serving for transmission of the further processed measurement signal via the third interface to the first superordinated data processing system; and a second superordinated data processing system connected wirelessly, especially via a radio connection, with the evaluation circuit.

Abstract: The present disclosure relates to a device for dispensing a liquid, including a vertically arranged, translucent pipe for guiding the liquid, wherein the pipe has an upper section and a lower section, wherein an inner diameter of the upper section is greater than an inner diameter of the lower section, at least two light barriers for detecting a rise in the liquid over two defined levels in the pipe, wherein a first light barrier detects a rise in the liquid in the upper section of the pipe, and wherein a second light barrier detects a rise in the liquid in the lower section of the pipe.

Abstract: A sensor arrangement for use in process automation, including a sensor with at least one sensor element for detecting a measurand of process automation, a first interface for transmitting a value that is a function of the measurand to a second interface, and a first coupling body having the first interface, the sensor further including a connection element for transmitting the value to a higher-level unit, the connection element including a first housing section with a second interface complementary to the first interface, wherein the first and second interfaces are designed for bi-directional communication between the sensor and the higher-level unit and to ensure the power supply to the sensor, a second housing section with a second coupling body complementary to the first coupling body and having an open and a locked condition, wherein the first housing section can be rotated in relation to the second housing section.

Abstract: A method for manufacturing an inductive conductivity sensor, wherein on both sides of a circuit board coils are placed surrounding an opening of the circuit board, and the circuit board with the coils is inserted into a housing. A sleeve is inserted through a first opening of the housing through the opening of the circuit board into the housing. The sleeve includes a first end section and a second end section and the sleeve is inserted with the first end section first into the housing, and wherein the sleeve is welded with the housing by means of a sonotrode by ultrasonic welding. Both the first end section as well as also the second end section of the sleeve are welded with the housing, wherein the sonotrode is applied exclusively on the sleeve on the side of the second end section. The invention relates further to an inductive conductivity sensor.

Abstract: The present disclosure relates to a method and a corresponding circuit for the fault detection of an electrical circuit, wherein the electrical circuit includes a first inductive interface, at least a first branch, and a second branch, wherein the first and the second branches are connected in parallel, wherein the first branch includes two parallel and counter-currently-connected diodes, and wherein the first and second branches are connected to the first inductive interface. The method includes applying an alternating voltage or an alternating current across the first inductive interface via a second inductive interface, wherein the applied voltage or current is low enough that essentially no current flows through either the first or the second diode; measuring the impedance across the first inductive interface via the second inductive interface; and determining whether a fault is present in the second branch.

Abstract: The present disclosure includes an electronic circuit for use in process automation for transferring electrical energy from a terminal element to a sensor over an inductively coupled interface. The sensor measures the power it receives over the inductive interface and compares this value to a target power value. The difference between the actual and target values is communicated back to the terminal element. The terminal element adjusts its power output to the sensor to minimize this difference. The disclosure includes the use of the electronic circuit and a sensor arrangement comprising the electronic circuit, as well as a method for transmitting power.

Abstract: The present disclosure relates to a method for determining the conductivity of a medium by means of a conductive conductivity sensor, comprising the steps of determining measured values of the conductivity sensor, determining reference measured values of a reference circuit integrated into the conductivity sensor, deriving at least one adjustment value from the reference measured values of the reference circuit, and correcting the measured values of the conductivity sensor by means of the at least one adjustment value.

Abstract: The present disclosure relates to a sensor arrangement for determining the turbidity of a liquid medium. The sensor arrangement includes a sensor section with at least one light source for sending transmission light into a measuring chamber, and at least one receiver associated with the light source for receiving reception light from the measuring chamber, wherein the transmission light is converted into the reception light in the measuring chamber by the medium by means of scattering at a measurement angle, and the reception light received by the receiver is a measure of the turbidity. The reception light is back reflected at a reflection element in contact with the medium, whereby an optical path from the light source through the measuring chamber to the reflection element and from the reflection element through the measuring chamber to the receiver results.

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: An apparatus for determining the content of at least one oxidizable constituent of an aqueous, liquid sample, comprising a high temperature reactor for decomposing the liquid sample and forming a gaseous mixture, which contains at least the constituent as a gaseous oxide, wherein the high temperature reactor has a liquid inlet for delivery of the liquid sample and a gas inlet for delivery of a carrier gas, and is connected via a gas discharge with an analysis chamber, wherein a condensing unit is placed in front of the analysis chamber for condensing water from the gas mixture, wherein, during operation of the apparatus, a gas stream of the carrier gas with the gas mixture of the high temperature reactor passes via the gas discharge and the condensing unit into the analysis chamber, and wherein, between the gas discharge and the condensing unit, a heatable filter unit is interposed for removal of salts and/or metal oxides from the gas mixture, and the gas discharge, the filter unit and optionally connecting e

Abstract: A method for contacting at least two metal electrodes, wherein the metal electrodes are located in a cavity of a basic body of sintered ceramic and frontal end faces of the metal electrodes. The metal electrodes are arranged essentially planparallel to an outer surface of the basic body. The method includes steps as follows: introducing a solder into at least one hole of the basic body, wherein the hole is so embodied that it leads to a rear portion of the metal electrode away from the frontal end face of the metal electrode wherein the solder can wet the rear portion of the metal electrode, wherein the metal electrodes are in their longitudinal direction shorter than the basic body, especially have only ? of the length of the basic body; introducing a cable into the hole at least until the cable extends into the solder; and heating the basic body with solder and cable above the solidification temperature of the solder.

Abstract: A method for automated in situ determining an analyte content of a liquid sample by means of a bioanalyzer, wherein a measurement duct has at least one substrate, comprising a repeatedly performable sequence of steps as follows: (i) preparing a sensor matrix, which has a plurality of receptors, which bind the analyte and/or a further target molecule, or bring about a chemical conversion of the analyte or of the further target molecule, leading through the measurement duct a preparation solution of at least a first chemical species, wherein a plurality of the first chemical species are bound on the substrate via the functional group binding on the substrate, wherein the other functional group of the plurality of the first chemical species bound on the substrate serves as a receptor or for subsequent binding of a receptor; (ii) leading the liquid sample, through the measurement duct, wherein analyte contained in the liquid sample or in the liquid to be measured, and/or other target molecules contained in the li

Abstract: A method for manufacturing an inductive conductivity sensor, with coils on both sides of a circuit board are placed surrounding an opening of the circuit board. The circuit board with the coils is inserted into a housing, wherein a sleeve is inserted in the housing through a second opening of the housing through the opening of the circuit board out to a first opening. The first opening, the second opening and the opening of the circuit board are aligned with one another, wherein the sleeve includes a first end section and a second end section and the sleeve is inserted with the first end section first in the housing, and wherein the sleeve is welded with the housing by means of a sonotrode by ultrasonic welding. The first end section of the sleeve is welded with the housing and with a counterpart inserted into the first opening. The invention relates further to an inductive conductivity sensor.

Abstract: An apparatus for determining a value that represents an amount of liquid in a vessel, wherein the vessel is configured to be a tube or a cuvette. The vessel for the liquid is basically transparent, with at least one radiation unit, that is arranged alongside the longitudinal axis of the vessel and that radiates light into the vessel, as well as at least one light detector with at least one light receiver that is assigned to the radiation unit and that receives the light that is coming through the vessel and forwards it to the light detector. The apparatus comprises a data processing unit that determines the value that represents the amount of the liquid in the vessel from the light that was detected by the light detector. The apparatus is characterized in that the light detector detects the sum total of the light that was radiated through the vessel and was received by all light receivers. Furthermore, the invention relates to the use of the apparatus in an analyzer.

Abstract: The present disclosure relates to an automatic analyzer for determining a parameter of a sample fluid, including a dosing device comprising at least one dosing chamber, a first fluid flow path connecting a sample receiving vessel to the dosing chamber via a first pump, a tank containing a dilution medium, a second fluid flow path connecting the tank to the dosing chamber via a second pump, a measuring cell in communication with the dosing chamber via a third fluid flow path via a third pump, and a measuring and control system connected to and configured to control the pumps, wherein the first, second, and third fluid flow paths can selectively be blocked or unblocked by at least one valve unit and the measuring and control system is configured to control the at least one valve unit to block or unblock the first, second, and third flow paths.

Abstract: A method for manufacturing a glass assembly comprises the steps: lowering of a dip pipe that gas may flow through vertically to the surface of a glass melt; determining when the surface of the glass melt is encountered by the dip pipe end showing towards the glass melt by detecting an increase of the gas pressure found inside the dip pipe; continued lowering of the dip pipe until a predetermined depth of entry of the dip pipe end showing towards the glass melt is reached; obtaining a predetermined pressure inside the dip pipe while the dip pipe first stays at the given immersion depth for the given duration and after the predetermined duration is completed, is lifted with a given speed vertically to the surface of the glass melt, thus creating a gas bubble in the glass melt whose walls are attached to the end of the dip pipe; continued lifting of the dip pipe vertically to the surface of the glass melt until the gas bubble is separated from the glass melt, with the wall of the gas bubble remaining at the dip

Abstract: An analytical device, including: a processing system for treating a liquid sample and for supplying the treated liquid sample to a measuring cell, to the liquid sample; a measuring transducer for registering a measured value of the treated liquid sample variable; a control unit to control the processing system; and an evaluating unit for determining the measured variable based on the measured value registered by the measuring transducer. The analytical device includes at least one first supply container containing a first reagent component, at least one second supply container containing a second reagent component and a mixing apparatus, for mixing a predetermined amount of the first reagent component contained in the first supply container with a predetermined amount of the second reagent component to form a predetermined amount of the reagent.

Abstract: A measuring system for determining the specific electrical conductivity of a medium in a vessel, comprising an inductive conductivity sensor with at least one transmitter coil that emits an input signal into the medium and a receiver coil connected to the transmitter coil via the medium that delivers the output signal, a temperature sensor for measuring the temperature of the medium, and a data processing unit that determines the conductivity of the medium using the input signal, the output signal, and the temperature provided. The system is characterized by the fact that the conductivity sensor and the temperature sensor are designed as non-invasive sensors.