WO2003098198A1 - Online-analysator - Google Patents
Online-analysator Download PDFInfo
- Publication number
- WO2003098198A1 WO2003098198A1 PCT/EP2003/005208 EP0305208W WO03098198A1 WO 2003098198 A1 WO2003098198 A1 WO 2003098198A1 EP 0305208 W EP0305208 W EP 0305208W WO 03098198 A1 WO03098198 A1 WO 03098198A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- online analyzer
- analyzer according
- measuring device
- opto
- control
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/251—Colorimeters; Construction thereof
- G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus
Definitions
- the invention relates to an online analyzer for analyzing a measurement sample.
- the analyzers are offered and sold by the applicant under the name 'STAMOLYS'.
- the analyzers are used e.g. in the monitoring and optimization of the cleaning performance of a sewage treatment plant, in the monitoring of aeration tanks and the sewage plant outlet or in the regulation of the filler dosage.
- the content of a measurement sample of ammonium, phosphate or nitrate is measured and monitored.
- the analysis of a test sample is carried out using known measurement methods, which are not discussed in more detail here.
- Online analyzers preferably continuously record daily trend lines. On the one hand, these reliably provide the desired information regarding the continuous operation of the Anaige; on the other hand, information is provided regarding any changes in process engineering that may be required. The analysis data can therefore lead to quite considerable savings in operating resources and operating costs.
- the workflow in an online analyzer with a colorimetric measuring device is roughly the following:
- the permeate - that is, the prepared measurement sample - is filled into a mixing container by means of a pump.
- a corresponding reagent is added to the measurement sample in a defined mixing ratio via a reagent pump.
- the reagent reacts with the test sample, causing the test sample to change color in a characteristic manner.
- a measurement of the absorbance or the transmission of radiation as it passes through the fully reacted measurement sample is determined using a photometer or a spectrometer.
- the absorbance or transmission measurement provides information about the content of a chemical element or a chemical compound in the measurement sample.
- the temperature of the photometer is preferably thermostatically controlled in the STAMOLYS.
- the photometer with the measuring cell is accommodated on a mounting frame together with the pumps for conveying the permeate, the reagent and / or the cleaning agent and the valves for switching internal cycles (calibration, cleaning).
- This is the electronics for amplifying the optical signals of the optoelectronic components, for. B. the photodiodes, in the so-called.
- Wet part of the online analyzer In order to protect the sensitive opto-electronic components of the photometer or spectrometer against moisture and against electromagnetic radiation, it is absolutely necessary with the known solutions to house the electronics in a separate, sealed protective housing.
- the known solution comprises a relatively large number of individual components: on the one hand, assembling them is rather complex; on the other hand, the space required in the known solution is relatively large.
- the object of the invention is to propose an online analyzer in which the wet part and electronic part are completely decoupled from one another.
- the analyzer comprises a measuring device which determines the transmission or the extinction of electromagnetic radiation when passing through the measuring sample at at least one wavelength and provides the measuring signals, and a control / evaluation unit which evaluates the measuring signals supplied by the measuring device and provides analysis data provides.
- the measuring device consists of at least one measuring cell and at least one opto-electronic component. Measuring cell and control / evaluation unit are spaced apart from each other. The at least one opto-electronic component of the measuring device is assigned to the control / evaluation unit. Furthermore, at least one optical waveguide is provided, by means of which the measuring cell and the at least one optoelectronic component are connected to one another.
- the online analyzer has excellent EMC properties.
- the measuring device is preferably a single-channel or a multi-channel photometer.
- a spectrometer can also be used in connection with the online analyzer according to the invention.
- Light-emitting diodes, a photodiodes or a diode array spectrometer are used as opto-electronic components.
- At least one connector is provided, via which the at least one opto-electronic component can be connected to the optical waveguide.
- the optical fibers being combined in an optical fiber bundle. This configuration serves for a clear arrangement of the optical waveguides.
- two optical fibers are used, one optical fiber or channel for the measuring wavelength and another optical fiber or channel for the reference wavelength.
- fiber-optic light coupling is provided, via which the opto-electronic components of the spectrometer and the optical fibers are connected to one another.
- fiber optic technology it is possible to use a broadband light source to illuminate the measuring cell instead of colored light-emitting diodes or photodetectors.
- a diode array spectrometer with fiber optic light coupling is then used for the spectrally resolved measurement. In this way, the different measured variables in a test sample can be determined with hardware.
- some measurands in the UV / VIS or NIR spectral range can also be measured directly, i.e. without reagents.
- a preferred development of the analyzer according to the invention provides that the opto-electronic components and the electronic or electrical components of the measuring device and / or the analyzer are arranged on at least one circuit board.
- the opto-electronic components and the electronic or electrical components of the measuring device and / or the analyzer are arranged on at least one circuit board.
- all opto-electronic components are arranged on the main board, on which the components of the amplifier electronics can also be found. This can reduce the manufacturing costs.
- At least one pump unit is provided, via which the measuring sample and / or a reagent and / or a cleaning agent is conveyed into the measuring cell.
- control / evaluation unit takes over the complete sequence control of the online analyzer.
- the control / evaluation unit the so-called electronics part, is preferably arranged in the upper area and / or in the rear area of the online analyzer; Furthermore, at least one partition is provided, which separates the electronic part from the wet part, in which, among other things, the measuring cell and / or the pump unit can be found. Since the electronic part is well sealed from the wet part anyway, the previously required separate protective housing for the sensitive electronic parts of the photometer can be omitted.
- Fig. 1 a plan view of an embodiment of the online analyzer according to the invention.
- FIG. 2 an illustration of the configuration of the measuring device shown in FIG. 1.
- FIG. 1 shows a top view of an embodiment of the online analyzer 1 according to the invention.
- FIG. 2 shows the configuration of the measuring device 3 shown in FIG. 1 separately.
- the housing 10 of the online analyzer 1 according to the invention is divided by an intermediate wall 20 into an electronic part 7 and a wet part 21.
- the intermediate wall 20 is carried out horizontally and separates the electronic part 7 arranged in the upper region of the housing 10 from the wet part 21 arranged in the lower part of the housing 10 Measurement sample come into direct contact.
- these are the channel changeover valves 14, the pumps 11, the shut-off valves 13, the metering loop 12, the measuring cell 3 and the receptacle 15.
- the measuring device 2 consists of a measuring cell 3 and several optoelectronic components 4. While the measuring cell 3 can be found in the wet part 21 of the online analyzer 1, the optoelectronic components 4 are arranged in the electronic part 7.
- the measuring cell 3 and the optoelectronic components 4 are connected according to the invention via optical waveguides 5.
- the optical waveguides 5 and the opto-electronic components 4, like the optical waveguides 5 and the measuring cell 3, are connected to one another via plug connectors 6. This enables, for example, the simple replacement of a measuring cell 3 by another measuring cell 3 with a different thickness.
- the optical fibers 5 can also be permanently connected to the optoelectronic components 4 or the measuring cell 3. In the case shown, it is a so-called two-channel photometer: the measuring radiation and the reference radiation are coupled in or out via separate optical fibers 5.
- the control / evaluation unit 19 which is responsible for the sequence control of the online analyzer 1 and for the evaluation and provision of the analysis data, is also arranged in the electronics part 7. Both the sequence control and the measurement value acquisition are already known from the prior art, so that a new description can be omitted here. All electronic and electrical components 4; 19 arranged on a circuit board 18.
- the receptacles 15 are located in the lower region of the wet part 21.
- the reagent and the cleaning agents are stored in the receptacles 15.
- the fully reacted measurement samples and the used cleaning agents are discharged via the outlet pipe 17.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003247282A AU2003247282A1 (en) | 2002-05-21 | 2003-05-17 | Online analyzer |
EP03752762A EP1506389A1 (de) | 2002-05-21 | 2003-05-17 | Online-analysator |
US10/515,306 US8268248B2 (en) | 2002-05-21 | 2003-05-17 | Online analyzer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10222822A DE10222822A1 (de) | 2002-05-21 | 2002-05-21 | Online-Analysator |
DE10222822.1 | 2002-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003098198A1 true WO2003098198A1 (de) | 2003-11-27 |
Family
ID=29414059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/005208 WO2003098198A1 (de) | 2002-05-21 | 2003-05-17 | Online-analysator |
Country Status (6)
Country | Link |
---|---|
US (1) | US8268248B2 (de) |
EP (1) | EP1506389A1 (de) |
CN (1) | CN100541173C (de) |
AU (1) | AU2003247282A1 (de) |
DE (1) | DE10222822A1 (de) |
WO (1) | WO2003098198A1 (de) |
Cited By (2)
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US8347742B2 (en) * | 2005-11-17 | 2013-01-08 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Sampler |
US9222883B2 (en) | 2010-07-26 | 2015-12-29 | Endress + Hauser Conducta Gesellschaft für Mess—und Regeltechnik mbH + Co. KG | Optical measuring system having a cell holder to accommodate flow through cells of different dimensions in the direction of optical path |
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DE102008050092A1 (de) * | 2008-10-06 | 2010-04-08 | Hach Lange Gmbh | Mobile Wasser-Analyseanordnung |
DE102009029305A1 (de) | 2009-09-09 | 2011-03-10 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Analysegerät zur automatisierten Bestimmung einer Messgröße einer Flüssigkeitsprobe |
DE102010030489A1 (de) | 2010-03-25 | 2011-09-29 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | System zu Behandlung von Flüssigkeiten |
CN102822680B (zh) | 2010-03-25 | 2015-10-21 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | 用于处理液体的系统 |
DE102011007011B4 (de) | 2011-04-07 | 2024-02-01 | Endress+Hauser Conducta Gmbh+Co. Kg | Analysegerät zur automatisierten Bestimmung einer Messgröße einer Flüssigkeitsprobe und Verfahren zur Überwachung einer Messgröße |
DE102011075762A1 (de) | 2011-05-12 | 2012-11-15 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Analysegerät zur automatisierten Bestimmung einer Messgröße einer Messflüssigkeit |
DE102011088235A1 (de) | 2011-12-12 | 2013-06-13 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Probenvorbereitungseinrichtung für eine Analyseeinrichtung zur Bestimmung einer Messgröße einer flüssigen Probe |
DE102011088678A1 (de) | 2011-12-15 | 2013-06-20 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Ventilanordnung und Analysegerät zur automatisierten Bestimmung einer Messgröße einer Messflüssigkeit mit einer solchen Ventilanordnung |
DE102011088959B4 (de) | 2011-12-19 | 2022-08-04 | Endress+Hauser Conducta Gmbh+Co. Kg | Vorrichtung zum Entgasen einer Flüssigkeit und Verwendung dieser Vorrichtung in einem Analysegerät |
DE102012102256B4 (de) | 2012-03-16 | 2024-05-29 | Endress+Hauser Conducta Gmbh+Co. Kg | Analysegerät mit Basismodul und austauschbarer Kassette |
DE102012102296A1 (de) | 2012-03-19 | 2013-09-19 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Messanordnung umfassend mindestens ein erstes Analysegerät zur automatisierten Bestimmung einer Messgröße einer Flüssigkeit und eine Probenvorbereitungseinrichtung |
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DE102012110319A1 (de) | 2012-10-29 | 2014-04-30 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung der Automatisierungstechnik mit Umweltfreundlichem Gehäuse |
DE102012112917A1 (de) | 2012-12-21 | 2014-06-26 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung der Prozessautomatisierungstechnik |
DE102014115594A1 (de) | 2014-10-27 | 2016-04-28 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Probennahmevorrichtung |
WO2016130964A1 (en) | 2015-02-13 | 2016-08-18 | Abbott Laboratories | Decapping and capping apparatus, systems and methods for use in diagnostic analyzers |
DE102015103484A1 (de) * | 2015-03-10 | 2016-09-15 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | In-Line-Messeinrichtung |
DE102016105773A1 (de) | 2016-03-30 | 2017-10-05 | Endress+Hauser Conducta Gmbh+Co. Kg | Verfahren zum Betreiben eines automatischen Analysegeräts |
DE102016105770B4 (de) | 2016-03-30 | 2018-10-11 | Endress+Hauser Conducta Gmbh+Co. Kg | Automatisches Analysegerät und Verfahren |
DE102016123227A1 (de) | 2016-12-01 | 2018-06-07 | Endress+Hauser Conducta Gmbh+Co. Kg | Verfahren zur Bestimmung einer Konzentration einer Messgröße einer Flüssigkeitsprobe und Analysator |
US11480553B2 (en) * | 2017-01-16 | 2022-10-25 | Shimadzu Corporation | Liquid chromatography detector |
DE102017111366A1 (de) | 2017-05-24 | 2018-11-29 | Endress+Hauser Conducta Gmbh+Co. Kg | Schwebekörper-Durchflussmessgerät |
DE102018103530A1 (de) * | 2018-02-16 | 2019-08-22 | Endress+Hauser Conducta Gmbh+Co. Kg | Analysegerät zur Bestimmung einer eine Silikatkonzentration in einer Probenflüssigkeit repräsentierenden Messgröße |
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2002
- 2002-05-21 DE DE10222822A patent/DE10222822A1/de not_active Withdrawn
-
2003
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- 2003-05-17 AU AU2003247282A patent/AU2003247282A1/en not_active Abandoned
- 2003-05-17 WO PCT/EP2003/005208 patent/WO2003098198A1/de not_active Application Discontinuation
- 2003-05-17 CN CNB038145618A patent/CN100541173C/zh not_active Expired - Fee Related
- 2003-05-17 US US10/515,306 patent/US8268248B2/en not_active Expired - Fee Related
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8347742B2 (en) * | 2005-11-17 | 2013-01-08 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Sampler |
US9222883B2 (en) | 2010-07-26 | 2015-12-29 | Endress + Hauser Conducta Gesellschaft für Mess—und Regeltechnik mbH + Co. KG | Optical measuring system having a cell holder to accommodate flow through cells of different dimensions in the direction of optical path |
Also Published As
Publication number | Publication date |
---|---|
EP1506389A1 (de) | 2005-02-16 |
AU2003247282A1 (en) | 2003-12-02 |
CN100541173C (zh) | 2009-09-16 |
DE10222822A1 (de) | 2003-12-04 |
US8268248B2 (en) | 2012-09-18 |
US20060051238A1 (en) | 2006-03-09 |
CN1662809A (zh) | 2005-08-31 |
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