DE69223640T2 - Ph-sensor mit selbstdiagnose-funktion - Google Patents

Ph-sensor mit selbstdiagnose-funktion

Info

Publication number
DE69223640T2
DE69223640T2 DE69223640T DE69223640T DE69223640T2 DE 69223640 T2 DE69223640 T2 DE 69223640T2 DE 69223640 T DE69223640 T DE 69223640T DE 69223640 T DE69223640 T DE 69223640T DE 69223640 T2 DE69223640 T2 DE 69223640T2
Authority
DE
Germany
Prior art keywords
self
sensor
diagnostic function
diagnostic
function
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69223640T
Other languages
English (en)
Other versions
DE69223640D1 (de
Inventor
Timothy J Forsythe
Roland H Koluvek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosemount Inc
Original Assignee
Rosemount Analytical Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rosemount Analytical Inc filed Critical Rosemount Analytical Inc
Application granted granted Critical
Publication of DE69223640D1 publication Critical patent/DE69223640D1/de
Publication of DE69223640T2 publication Critical patent/DE69223640T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/4163—Systems checking the operation of, or calibrating, the measuring apparatus
    • G01N27/4165—Systems checking the operation of, or calibrating, the measuring apparatus for pH meters
DE69223640T 1991-10-25 1992-10-14 Ph-sensor mit selbstdiagnose-funktion Expired - Fee Related DE69223640T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/781,312 US5268852A (en) 1991-10-25 1991-10-25 Self diagnostic pH sensor
PCT/US1992/008799 WO1993008477A1 (en) 1991-10-25 1992-10-14 SELF DIAGNOSTIC pH SENSOR

Publications (2)

Publication Number Publication Date
DE69223640D1 DE69223640D1 (de) 1998-01-29
DE69223640T2 true DE69223640T2 (de) 1998-07-02

Family

ID=25122337

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69223640T Expired - Fee Related DE69223640T2 (de) 1991-10-25 1992-10-14 Ph-sensor mit selbstdiagnose-funktion

Country Status (7)

Country Link
US (1) US5268852A (de)
EP (1) EP0609334B1 (de)
JP (1) JPH07500419A (de)
CA (1) CA2119435C (de)
DE (1) DE69223640T2 (de)
RU (1) RU94021696A (de)
WO (1) WO1993008477A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5502388A (en) * 1993-02-04 1996-03-26 Hoechst Aktiengesellschaft Method of measuring the pH value of a test solution with glass-electrode measuring cells and of simultaneously calibrating the measuring cells
US5644501A (en) * 1994-12-06 1997-07-01 Lin; Shengfu Method of using a computer to collect chemical signals directly
US5832410A (en) * 1994-12-06 1998-11-03 Lin; Shengfu Method of using a computer to collect chemical signals directly
US5980728A (en) * 1996-09-24 1999-11-09 Rosemont Analytical Inc. Diagnostic method and apparatus for solid electrolyte gas analyzer
DE19743979A1 (de) * 1997-10-06 1999-04-08 Conducta Endress & Hauser Verfahren zum Betreiben eines elektrochemischen Sensors sowie elektrische Schaltung für einen elektrochemischen Sensor
US5970428A (en) * 1997-10-08 1999-10-19 Elsag International N.V. Ground loop detector circuit and method
US6617488B1 (en) * 1997-10-14 2003-09-09 Indicator Technologies, Inc. Method and apparatus for indicating the conditions in an absorbent article
AU5500499A (en) * 1998-09-09 2000-03-27 Cominco Ltd. Apparatus for monitoring the operability of an electrochemical sensor
IL135309A0 (en) * 2000-03-28 2001-05-20 Ortal Apert Three-dimensional optical memory
EP1143239A1 (de) * 2000-04-04 2001-10-10 Metrohm Ag Verfahren zur Überwachung der Qualität von elektrochemischen Messsensoren und Messanordnung mit einem elektrochemischen Sensor
DE10119471A1 (de) * 2001-04-20 2002-10-31 Micronas Gmbh Verfahren und Zweidrahtsensor zur Messung einer physikalischen Größe
EP1421372B1 (de) * 2001-08-22 2010-11-03 Instrumentation Laboratory Company Verfahren und vorrichtung zur kalibrierung von sensoren
CA2470474A1 (en) * 2001-12-14 2003-06-26 Rosemount Analytical Inc. A ph sensor with internal solution ground
DE502004010111D1 (de) 2004-06-22 2009-11-05 Mettler Toledo Ag Potentiometrische Messsonde mit aussenseitiger Beschichtung als Zusatzelektrode
US7429865B2 (en) * 2005-10-05 2008-09-30 Roche Diagnostics Operations, Inc. Method and system for error checking an electrochemical sensor
WO2008021546A2 (en) * 2006-08-18 2008-02-21 Rosemount Analytical, Inc. Impedance measurement of a ph electrode
US8436621B2 (en) * 2009-01-16 2013-05-07 Kyungpook National University Industry-Academic Corporation Foundation pH measurement system using glass pH sensor
EP3594671B1 (de) 2018-07-10 2022-09-07 ABB Schweiz AG Verfahren zur überwachung der sensorfunktion eines potentiometrischen sensors und entsprechende potentiometrische sensoranordnung
CN111220674A (zh) * 2020-01-16 2020-06-02 上海博取环境技术有限公司 一种ph传感器故障监测装置及其监测方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013899A (en) * 1976-03-26 1977-03-22 Honeywell Inc. Apparatus for converting a potential signal developed between two high impedance electrodes to a current signal and for transmitting this current signal to a remote location over a two wire transmission
US4546441A (en) * 1982-07-22 1985-10-08 John Burch Method and apparatus for time based measurement of impedance
US4536274A (en) * 1983-04-18 1985-08-20 Diamond Shamrock Chemicals Company pH and CO2 sensing device and method of making the same
EP0241601B1 (de) * 1986-04-15 1990-02-07 Yokogawa Europe B.V. Vorrichtung zur Prüfung der Vollständigkeit einer Elektrode in einem potentiometrischen Elektrodensystem
US4829253A (en) * 1987-06-03 1989-05-09 Rosemount Inc. Three wire amplifier circuit with diagnostic capabilities
US5046028A (en) * 1989-02-06 1991-09-03 Bryan Avron I System for calibrating, monitoring and reporting the status of a pH sensor
US4998068A (en) * 1989-05-16 1991-03-05 In-Situ, Inc. Bias current control for providing accurate potentiometric measurements

Also Published As

Publication number Publication date
US5268852A (en) 1993-12-07
CA2119435C (en) 2001-05-01
JPH07500419A (ja) 1995-01-12
EP0609334A1 (de) 1994-08-10
RU94021696A (ru) 1996-04-27
EP0609334B1 (de) 1997-12-17
DE69223640D1 (de) 1998-01-29
EP0609334A4 (en) 1994-09-21
WO1993008477A1 (en) 1993-04-29
CA2119435A1 (en) 1993-04-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee
8370 Indication of lapse of patent is to be deleted
8339 Ceased/non-payment of the annual fee