JPS57160056A - Dissolved oxygen meter - Google Patents

Dissolved oxygen meter

Info

Publication number
JPS57160056A
JPS57160056A JP56046680A JP4668081A JPS57160056A JP S57160056 A JPS57160056 A JP S57160056A JP 56046680 A JP56046680 A JP 56046680A JP 4668081 A JP4668081 A JP 4668081A JP S57160056 A JPS57160056 A JP S57160056A
Authority
JP
Japan
Prior art keywords
cylinder
guard
dissolved oxygen
water
measured
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.)
Pending
Application number
JP56046680A
Other languages
Japanese (ja)
Inventor
Kenichi Sakata
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP56046680A priority Critical patent/JPS57160056A/en
Publication of JPS57160056A publication Critical patent/JPS57160056A/en
Pending 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

Abstract

PURPOSE:To calibrate a dissolved oxygen meter easily in the state that it is submerged in water by placing slidably the detection section of a dissolved oxygen meter into a cylindrical guard and sealing the detection section into the guard during its calibration and supplying air into the sealed space. CONSTITUTION:The oxygen sensing section 15 of a dissolved oxygen meter is placed slidably in a cylindrical guard 14 and the arm 18 of the covering ball 19 of the guard 14 is made slidable along a slide hole 14a of the cylinder 14. A seal 17 is provided between the cylinder 14 and a sensor section 15a, so that leakage of the liquid to be measured and air is prevented when the sensor section 15a is pulled up in the cylinder 14. During measurement the face 16 of the sensor lies under the lower end of the cylinder 14 and during calibration it is placed in the cylinder 14, and atmospheric air is supplied through a pipe 20 and the guard 14 stays submerged in the water to be measured. In this arrangement the temperature of the supplied air soon reaches that of the water to be measured and it is saturated with water vapor. Calibration of a dissolved exygen meter can be, therefore, made swiftly and without temperature compensation.
JP56046680A 1981-03-30 1981-03-30 Dissolved oxygen meter Pending JPS57160056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046680A JPS57160056A (en) 1981-03-30 1981-03-30 Dissolved oxygen meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046680A JPS57160056A (en) 1981-03-30 1981-03-30 Dissolved oxygen meter

Publications (1)

Publication Number Publication Date
JPS57160056A true JPS57160056A (en) 1982-10-02

Family

ID=12754085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046680A Pending JPS57160056A (en) 1981-03-30 1981-03-30 Dissolved oxygen meter

Country Status (1)

Country Link
JP (1) JPS57160056A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723436A (en) * 1985-06-15 1988-02-09 Dragerwerk Aktiengesellschaft Process for calibrating a gas metering instrument
WO2015025724A1 (en) * 2013-08-22 2015-02-26 株式会社堀場アドバンスドテクノ Dissolved oxygen measurement system and method for calibrating dissolved oxygen meter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5466890A (en) * 1977-11-08 1979-05-29 Agency Of Ind Science & Technol Electrode holder for fermenter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5466890A (en) * 1977-11-08 1979-05-29 Agency Of Ind Science & Technol Electrode holder for fermenter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723436A (en) * 1985-06-15 1988-02-09 Dragerwerk Aktiengesellschaft Process for calibrating a gas metering instrument
US4793173A (en) * 1985-06-15 1988-12-27 Dragerwerk Aktiengesellschaft Process for calibrating a gas metering instrument
WO2015025724A1 (en) * 2013-08-22 2015-02-26 株式会社堀場アドバンスドテクノ Dissolved oxygen measurement system and method for calibrating dissolved oxygen meter
KR20160046760A (en) * 2013-08-22 2016-04-29 가부시키가이샤 호리바 어드밴스트 테크노 Dissolved oxygen measurement system and method for calibrating dissolved oxygen meter
US20160131614A1 (en) * 2013-08-22 2016-05-12 Horiba Advanced Techno, Co., Ltd. Dissolved Oxygen Measurement System and Method of Calibrating Dissolved Oxygen Meter
JPWO2015025724A1 (en) * 2013-08-22 2017-03-02 株式会社 堀場アドバンスドテクノ Dissolved oxygen measuring system and calibration method of dissolved oxygen meter
US9897570B2 (en) * 2013-08-22 2018-02-20 Horiba Advanced Techno, Co., Ltd. Dissolved oxygen measurement system and method of calibrating dissolved oxygen meter

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