CA2019728A1 - Safe failure ion selective combination electrode - Google Patents

Safe failure ion selective combination electrode

Info

Publication number
CA2019728A1
CA2019728A1 CA2019728A CA2019728A CA2019728A1 CA 2019728 A1 CA2019728 A1 CA 2019728A1 CA 2019728 A CA2019728 A CA 2019728A CA 2019728 A CA2019728 A CA 2019728A CA 2019728 A1 CA2019728 A1 CA 2019728A1
Authority
CA
Canada
Prior art keywords
combination electrode
ion selective
selective combination
safe failure
safe
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.)
Granted
Application number
CA2019728A
Other languages
French (fr)
Other versions
CA2019728C (en
Inventor
Mark David Kaganov
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.)
Terumo BCT Inc
Original Assignee
Cobe Laboratories 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 Cobe Laboratories Inc filed Critical Cobe Laboratories Inc
Publication of CA2019728A1 publication Critical patent/CA2019728A1/en
Application granted granted Critical
Publication of CA2019728C publication Critical patent/CA2019728C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Abstract

A safe failure ion selective combination electrode in which a signal unit provides a signal if combination electrode output falls outside a predetermined range.
CA002019728A 1989-07-10 1990-06-25 Safe failure ion selective combination electrode Expired - Fee Related CA2019728C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37788789A 1989-07-10 1989-07-10
US377,887 1989-07-10

Publications (2)

Publication Number Publication Date
CA2019728A1 true CA2019728A1 (en) 1991-01-10
CA2019728C CA2019728C (en) 1995-01-17

Family

ID=23490917

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002019728A Expired - Fee Related CA2019728C (en) 1989-07-10 1990-06-25 Safe failure ion selective combination electrode

Country Status (6)

Country Link
JP (1) JPH0346554A (en)
CA (1) CA2019728C (en)
DE (1) DE4021853C2 (en)
FR (1) FR2649486A1 (en)
GB (1) GB2233768B (en)
IT (1) IT1240484B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6148196B2 (en) 2014-03-31 2017-06-14 株式会社クボタ Working machine hydraulic system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4331198Y1 (en) * 1965-03-04 1968-12-18
JPS4838890B1 (en) * 1968-12-16 1973-11-20
GB1337544A (en) * 1969-12-19 1973-11-14 Ple Sey Co Ltd Fluid testing apparatus
US3661748A (en) * 1970-04-07 1972-05-09 Instrumentation Labor Inc Fault sensing instrumentation
GB1368823A (en) * 1972-05-10 1974-10-02 Activion Glass Ltd Ion-responsive electrodes
DE2706942A1 (en) * 1976-03-17 1977-09-29 Owens Illinois Inc COMBINATION ELECTRODE
US4039933A (en) * 1976-03-25 1977-08-02 Instrumentation Laboratory, Inc. Continuous calibration system and method for analytical instruments
US4189367A (en) * 1978-10-19 1980-02-19 Leeds & Northrup Company Method for testing ion selective electrodes in continuous measuring systems
JPS58178410A (en) * 1982-04-14 1983-10-19 Fuji Electric Co Ltd Warning circuit
DE3516018A1 (en) * 1985-05-02 1986-12-18 Holger 1000 Berlin Kruse PORTABLE DEVICE FOR DETERMINING THE STOMACH FUNCTION ON THE BASIS OF THE ACIDIC ACID
US4822456A (en) * 1987-06-05 1989-04-18 Bryan Avron I Ion measuring apparatus and monitoring system
US4900422A (en) * 1988-07-05 1990-02-13 Bryan Avron I System for monitoring and reporting the operability and calibration status of a dissolved oxygen sensor

Also Published As

Publication number Publication date
GB9015209D0 (en) 1990-08-29
JPH0346554A (en) 1991-02-27
DE4021853A1 (en) 1991-01-24
GB2233768B (en) 1994-01-05
IT9067507A1 (en) 1992-01-09
IT9067507A0 (en) 1990-07-09
GB2233768A (en) 1991-01-16
IT1240484B (en) 1993-12-17
DE4021853C2 (en) 1995-03-09
CA2019728C (en) 1995-01-17
FR2649486A1 (en) 1991-01-11

Similar Documents

Publication Publication Date Title
AU2918689A (en) Fault detection
AU3080989A (en) Solid electrolyte devices
AU1459788A (en) Cross-coupled checking circuit
AU3916989A (en) Float switch
AU4218589A (en) Separator
AU2581684A (en) Alarm check valve
AU4059589A (en) Warning device
CA2019728A1 (en) Safe failure ion selective combination electrode
AU4933290A (en) Low energy fuse
GB2219572B (en) Cashbox
EP0336707A3 (en) Pressure indicator
GB2218282B (en) Fuse unit
AU2192488A (en) A low energy fuse multi-connector
GB2223834B (en) An arming mechanism
AU3682989A (en) Level indicator
GB2217704B (en) Membrane for barium ion selective electrode
DE58900853D1 (en) Sensor.
AU7051591A (en) Safety circuit
HK107393A (en) Microprocessor providing selectable alignment checking on memory references
AU3877489A (en) Signal conditioning device
AU104933S (en) Alarm unit housing
AU2289588A (en) A low energy fuse multi-connector
AU636938B2 (en) An acoustic barrier
AU3377289A (en) Housing construction
PH30814A (en) Low energy fuse.

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed