GB2005420A - Powering a gas detector - Google Patents

Powering a gas detector

Info

Publication number
GB2005420A
GB2005420A GB7835503A GB7835503A GB2005420A GB 2005420 A GB2005420 A GB 2005420A GB 7835503 A GB7835503 A GB 7835503A GB 7835503 A GB7835503 A GB 7835503A GB 2005420 A GB2005420 A GB 2005420A
Authority
GB
United Kingdom
Prior art keywords
energy supply
measuring
supply unit
chassis
gas
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
GB7835503A
Other versions
GB2005420B (en
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Publication of GB2005420A publication Critical patent/GB2005420A/en
Application granted granted Critical
Publication of GB2005420B publication Critical patent/GB2005420B/en
Expired 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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
    • 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
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Emergency Alarm Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Gas measuring apparatus, in particular portable apparatus powered by a built-in current source, of the kind having gas-detecting elements, operating and indicating elements and alarm means and comprising an energy supply unit having a chargeable battery as its current source, a measuring unit and a chassis, which items are releasably and exchangeably connected together. Energy is supplied from the battery 2 via switching means 4 in the energy supply unit to the measuring unit 3, and in the energy supply unit, the voltage feed to a plug-in connection 5, 5', 6, 6' thereon is interrupted by switching means 4 when the measuring and energy supply units are not engaged via the chassis 1. <IMAGE>
GB7835503A 1977-09-02 1978-09-04 Gas measuring apparatus Expired GB2005420B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772740159 DE2740159A1 (en) 1977-09-02 1977-09-02 GAS DETECTOR

Publications (2)

Publication Number Publication Date
GB2005420A true GB2005420A (en) 1979-04-19
GB2005420B GB2005420B (en) 1982-03-24

Family

ID=6018259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835503A Expired GB2005420B (en) 1977-09-02 1978-09-04 Gas measuring apparatus

Country Status (3)

Country Link
DE (1) DE2740159A1 (en)
FR (1) FR2402329A1 (en)
GB (1) GB2005420B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444517A (en) * 1981-12-18 1984-04-24 Terumo Kabushiki Kaisha Electronic clinical thermometer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012013656C5 (en) * 2012-07-10 2019-08-01 Dräger Safety AG & Co. KGaA Battery operated blower filter system for use in potentially explosive atmospheres

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL302625A (en) * 1962-12-28
FR1427765A (en) * 1964-11-27 1966-02-11 Avon Electrical Heanor Ltd Improvements to electrical control or signaling equipment and electrical switches for these equipment
GB1459704A (en) * 1975-03-27 1976-12-31 Gas Measurement Instr Ltd Gas detection apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444517A (en) * 1981-12-18 1984-04-24 Terumo Kabushiki Kaisha Electronic clinical thermometer

Also Published As

Publication number Publication date
GB2005420B (en) 1982-03-24
FR2402329A1 (en) 1979-03-30
DE2740159A1 (en) 1979-03-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee