Endress+hauser Conducta Gmbh+co. Kg

Endress+hauser Conducta Gesellschaft Fur Mess- Und Regeltechnik Mbh+co. Kg

Ralf Steuerwald

Ulrich Kathe

Thomas Schipolowski

Tobias Zachmann

Michael Hanko

Thilo Krätschmer

Thomas Alber

Angela Eubisch

Joachim Albert

Thomas Baumgartner

Frank Müller

Christian Hirn

Guido Mennicken

Karl-Heinz Bareiss

Matthias Knoedler

Ralf Bernhard

Sebastian Schmidt

Anja Gerlinger

Dirk Steinmueller

Andrea Gross

Camiel Heffels

Matthias Knopp

Michael Oprea

Jurgen Erchinger

Maike Springmann

Matthias Knodler

Michael Ingelmann

Michael Kirchner

Norbert Wandrei

Karlheinz Barreis

A measuring apparatus for determining at least one measurand of a measuring medium includes a first measuring device including a first measuring sensor structured to contact the measuring medium and configured to detect measured values of the at least one measurand, the first measuring device embodied to determine a first measured value that is dependent on the at least one measurand of the measuring medium, a sampling device structured to remove a sample from the measuring medium, a second measuring device including a second measuring sensor and embodied to determine a second measured value that is dependent on the least one measurand of the sample, and an electronic control apparatus configured to receive and process the first and second measured value and to perform a verification, calibration and/or adjustment of the first measuring device using the second measured value.

Measuring device

The present disclosure relates to a diagnostic device for a field device from the field of automation technology, comprising a control unit, a sensor carrier, a stereo acoustic sensor, which is fastened to the sensor carrier, a first temperature sensor, which is fastened at a first position on the sensor carrier, and a second temperature sensor, which is fastened at a second position on the sensor carrier. The first position and the second position are remote from one another owing to a first spacing. The sensor carrier is suitable for being expanded such that the first spacing is changed.

Diagnostic device and diagnostic method for diagnosing a field device

The present disclosure includes to an analysis device for determining a measurand representing a silicate concentration in a sample liquid, including a housing divided into an electronics region and a fluidic region, wherein the electronics region is separated from the fluidic region by at least one wall. In the fluidic region are a measuring cell, a sample feed line connected to the measuring cell, at least one liquid container having a liquid therein and connected to the measuring cell via a liquid line, and at least one pump configured to transport at least a portion of the liquid from the liquid container into the measuring cell, in which the sample feed line is connected to an over-pressurized container containing the sample liquid, where the container is arranged outside the housing. The electronics region includes an electronic control system configured to control the operation of the analysis device.

Analysis device for determining a measurand representing a silicate concentration in a sample liquid

The disclosure includes an apparatus for determining a measured value in a liquid medium, comprising at least a light transmitter, at least one light receiver assigned to the transmitter, a measuring chamber that can be filled with the medium, wherein an optical path runs through the measuring chamber from the transmitter to the receiver. The apparatus includes a dosing apparatus for dosing at least one reagent and/or the medium, and for inserting the dosed reagent and/or the medium into the measuring chamber. The dosing apparatus is designed as a tube, and the tube includes at least a first control point, wherein the volume in the tube from a starting point to a first control point defines the amount of reagent or medium to be inserted into the measuring chamber. The disclosure further includes the use of the apparatus and a method for dosing the reagent.

Apparatus for determining a measured value of a measurand in process automation technology and its method of use

An analytical device for automated determining of a measured variable of a liquid sample comprises: a liquid storage, which includes one or more liquid containers for one or more liquids; a measuring cell for accommodating the liquid sample, especially a liquid sample, to which has been added one or more liquids from the liquid storage, and a measuring arrangement for providing one or more measurement signals correlated with the measured variable; an electronics unit, which includes a control unit for control of the analytical device and for determining the measured variable based on the measurement signals provided by the measuring arrangement; and a handling unit including a supply- and dosing, or metering, system for supplying and metering the liquid sample and liquids from the liquid storage into the measuring cell, wherein the analytical device includes at least one exchangeable cassette, into which are integrated at least parts of the liquid storage and/or at least parts of the handling unit.

Analytical device for automated determining of a measured variable of a liquid sample

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.

Analytical device for automated determination of a measured variable of a liquid sample

An analytical device for automated determining of a measured variable of a liquid sample, includes: a base module; a replaceable cassette connectable with the base module and having at least one liquid container connectable via a fluid line with a measuring cell and containing a reagent to be added to the liquid sample for forming a measured liquid; and a measuring transducer for registering measured values correlated with the measured variable for the measured liquid accommodated in the measuring cell. The cassette has, associated with the at least one liquid container, a fluid coupling apparatus having a primary component and a secondary component and serving for producing a connection of the fluid line with the liquid container.

Analytical device with base module and exchangeable cassette

A sample preparation system for an analytical system for determining a measured variable of a sample liquid, comprising: a transport unit connected with a sample taking location via a first fluid conducting line; a sample collecting unit, which serves the analytical system as a staging area for automated removal of liquid samples, based on which the measured variable is determined; a filter unit arranged between the sample taking location and the transport unit; and at least one reservoir connected via a second fluid conducting line with the filter unit for providing a cleaning medium for cleaning the filter unit; wherein the transport unit is embodied to transport sample liquid from the sample taking location through the filter unit into the sample collecting unit. The cleaning medium includes an oxidizing agent.

Sample preparation system for an analytical system for determining a measured variable of a liquid sample

The invention relates to a method for calibrating and/or adjusting an analytical device for chemical substances. A predetermined concentration of a chemical substance in a reference liquid is measured by mixing the reference liquid with a reagent for producing a color change, followed by irradiating with light of a predetermined wavelength. Based on the absorption of the light by the reference liquid, a concentration is determined, which is compared with the predetermined concentration of the reference liquid. In the case of which a calibrating and/or adjusting associated with the measurement process is possible without long interruptions of the measurement process, the predetermined concentration of the reference liquid is gained by mixing at least two standard, which contain different concentrations of the chemical substance.

Method for calibrating and/or adjusting an analytical device for chemical substances in liquids, especially in aqueous solutions

An analytical device for automated determining of a measured variable of a measured liquid, including: a measuring cell; a measuring transducer; a control unit; a system of liquid lines; a first liquid container which is connected to the measuring cell via a first liquid path; a second liquid container, which is connected to the measuring cell via a second liquid path, liquid path can be blocked by means of at least a second valve; wherein a first pump is associated with the first liquid container; and wherein a second pump (different from the first pump) for transport of liquid along the second liquid path is associated with the second liquid container; and wherein the analytical device has a central valve switching mechanism, especially controllable by the control unit, for actuating the first valve and the second valve.

Analytical device for automated determining of a measured variable of a measured liquid

An apparatus for handling a liquid sample, especially for automatic removal of a liquid sample from a sample-taking location, comprising: a control unit; a sample collecting unit; a supply and metering system, which is embodied to convey a liquid sample from the sample-taking location and to meter the sample into a liquid receptacle of the sample collecting unit; a housing with a first housing part, which at least partially surrounds at least the sample collecting unit, and a second housing part, which is separated from the first housing part, and which at least partially surrounds a metering space; wherein at least parts of the supply and metering system are arranged in the metering space; and wherein the apparatus furthermore includes a plate, which is releasably connected with the second housing part surrounding the metering space, and which divides the metering space into a first metering space part and a second metering space part.

Apparatus for handling a liquid sample

A sampler for automatic taking of liquid samples from a sample-taking location. The sampler includes: a housing with a door; an energy or power supply unit; a control/evaluation unit; a sample-taking unit, which, in a predeterminable time interval, takes a predetermined quantity of sample from the sample-taking location; a sample collecting unit arranged in a lower region of the housing of the sampler for storing taken samples; and a temperature-control unit, which controls at least the region of the sampler, in which the sample collecting unit is arranged, to a predetermined temperature.

Sampler

An on-line analyzer for analyzing a test sample, having a measuring device, which includes at least one measuring cell and at least one optoelectronic component. The measuring device determines, at at least one wavelength, the transmission or absorption of electromagnetic radiation passing through the test sample and provides measurement signals. The analyzer further includes a control/evaluation unit, which evaluates the measurement signals delivered by the measuring device and makes analysis data available. The measuring cell and the control/evaluation unit are located spatially separated from one another; the at least one optoelectronic component of the measuring device is assigned to the control/evaluation unit; the measuring cell and the at least one optoelectronic component are connected together via a light wave conductor.

Growing community of inventors

Eberdingen, Germany

Ralf Steuerwald