JPS57146142A - Water quality analizer - Google Patents

Water quality analizer

Info

Publication number
JPS57146142A
JPS57146142A JP2989781A JP2989781A JPS57146142A JP S57146142 A JPS57146142 A JP S57146142A JP 2989781 A JP2989781 A JP 2989781A JP 2989781 A JP2989781 A JP 2989781A JP S57146142 A JPS57146142 A JP S57146142A
Authority
JP
Japan
Prior art keywords
change
over valve
solution tank
pressurized air
constant volume
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
JP2989781A
Other languages
Japanese (ja)
Inventor
Osamu Uchida
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2989781A priority Critical patent/JPS57146142A/en
Publication of JPS57146142A publication Critical patent/JPS57146142A/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
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE:To increase reliability of operation by a construction wherein pressurized air is introduced into a correction liquid undiluted solution tank and diluted solution tank provided upstream of a change-over valve in a water quality analizer in which both measured liquid and correction liquid are supplied to a measurement chamber via the change-over valve, thereby to mix the solutions in both tanks. CONSTITUTION:Pressurized air is introduced into a correction liquid undiluted solution tank 1 and diluted solution tank 2. Both tanks 1 and 2 are connected with a change-over valve 6 via a constant volume tube 13. In accordance with a switching operation of the change-over valve 6, a measured liquid or a solution having passed the constant volume tube 13 is fed to a measurement chamber 7. In this manner, the sample is moved by virtue of the pressurized air without using any part which includes a mechanically movable portion, such as a constant volume pump, thus resulting in very high reliability in operation.
JP2989781A 1981-03-04 1981-03-04 Water quality analizer Pending JPS57146142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2989781A JPS57146142A (en) 1981-03-04 1981-03-04 Water quality analizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2989781A JPS57146142A (en) 1981-03-04 1981-03-04 Water quality analizer

Publications (1)

Publication Number Publication Date
JPS57146142A true JPS57146142A (en) 1982-09-09

Family

ID=12288760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2989781A Pending JPS57146142A (en) 1981-03-04 1981-03-04 Water quality analizer

Country Status (1)

Country Link
JP (1) JPS57146142A (en)

Similar Documents

Publication Publication Date Title
JPS57111441A (en) Electrochemical sensor for detecting density of reactant contained in fluid mixture and mixing ratio adjusting system of air fuel mixture using the same
GB1323492A (en) Apparatus for the saturation of liquids with gas particularly for the apparatus for the saturation of liquids wit gas particularly for the production of aerated water
GB1526359A (en) Liquid-material mixing apparatus
JPS57146142A (en) Water quality analizer
JPS57196014A (en) Apparatus for supplying combustion auxiliary agent
US3980435A (en) Method for controllng boric acid concentration in an aqueous stream
EP0072038A3 (en) Fuel cell
JPS56139127A (en) Mixed liquid supplyer
JPS56113333A (en) Fluid mixer
JPS56159558A (en) Fuel supply system for engine
JPS5639456A (en) Calibration method for measuring device of ultralow concentration ion
JPS55112891A (en) Roller pump apparatus
JPS57169667A (en) Measurement cell
JPS57196147A (en) Measurement of ammonium ion concentration
JPS5551427A (en) Automatic mixer for liquids
GB890285A (en) Improvements relating to the mixing of liquids
JPS57209316A (en) Grout injection work and pipe therefor
GB1428943A (en) Method of and apparatus for dissolving gases in liquids
JPS6450947A (en) Method for measuring bod in drainage
JPS5530629A (en) Reagent pump mechanism for automatic chemical analyzer
JPS571620A (en) Discharge processing device
JPS5575735A (en) Constant ratio mixer for liquid
JPS5531416A (en) Preparing accurately controlled concentration ratio mixed liquid
JPS5584572A (en) Switcher for supply or discharge of chemical liquid
JPS57191536A (en) Residual ozone concentration meter