DE20306059U1 - laboratory thermostat - Google Patents

laboratory thermostat

Info

Publication number
DE20306059U1
DE20306059U1 DE20306059U DE20306059U DE20306059U1 DE 20306059 U1 DE20306059 U1 DE 20306059U1 DE 20306059 U DE20306059 U DE 20306059U DE 20306059 U DE20306059 U DE 20306059U DE 20306059 U1 DE20306059 U1 DE 20306059U1
Authority
DE
Germany
Prior art keywords
laboratory thermostat
thermostat according
acoustic
laboratory
warning
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 - Lifetime
Application number
DE20306059U
Other languages
German (de)
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.)
Julabo Labortechnik GmbH
Original Assignee
Julabo Labortechnik 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 Julabo Labortechnik GmbH filed Critical Julabo Labortechnik GmbH
Priority to DE20306059U priority Critical patent/DE20306059U1/en
Publication of DE20306059U1 publication Critical patent/DE20306059U1/en
Priority to US10/818,245 priority patent/US20040216862A1/en
Priority to CNB2004100348919A priority patent/CN100345636C/en
Priority to GB0408531A priority patent/GB2400665B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
    • G01F23/60—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • B01L7/02—Water baths; Sand baths; Air baths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
    • G01F23/36—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
    • G01F23/363—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means using electromechanically actuated indicating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
    • G01F23/60—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means
    • G01F23/603—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means using electromechanically actuated indicating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/14—Process control and prevention of errors

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Control Of Temperature (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (6)

1. Laborthermostat mit Heiz- und/oder Kühleinrichtung zum Temperieren eines in einem Badgefäß befindlichen, flüssigen Badmediums, dadurch gekennzeichnet, dass er ein Frühwarnsystem mit einer Kontrolleinrichtung für ein Flüssigkeits-Unterniveau in dem Badgefäß aufweist, und dass unter Beibehaltung des Temperiervorganges eine Aus­ werteeinrichtung zumindest für eine akustische und/oder optische Warnmeldung vorgesehen ist.1. Laboratory thermostat with heating and / or cooling device for tempering a liquid bath medium located in a bath vessel, characterized in that it has an early warning system with a control device for a low liquid level in the bath vessel, and that an evaluation device is maintained while maintaining the temperature control process is provided at least for an acoustic and / or visual warning message. 2. Laborthermostat nach Anspruch 1, dadurch gekennzeichnet, dass die Ansprechschwelle des Frühwarnsystems oberhalb der Ansprechschwelle eines Unterniveauschutzes liegt.2. Laboratory thermostat according to claim 1, characterized in that the response threshold of the early warning system is above the Response threshold of a low-level protection lies. 3. Laborthermostat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kontrolleinrichtung einen mit einem elektrischen Schaltelement (12) verbundenen Schwimm­ körper (10) aufweist und dass das elektrische Schalt­ element (12) vorzugsweise mit einem akustischen Warn­ element, zum Beispiel einem Summer (13) für eine akustische Warnmeldung elektrisch verbunden ist.3. Laboratory thermostat according to claim 1 or 2, characterized in that the control device has a floating body ( 10 ) connected to an electrical switching element ( 12 ) and that the electrical switching element ( 12 ) is preferably provided with an acoustic warning element, for example a buzzer ( 13 ) for an acoustic warning message is electrically connected. 4. Laborthermostat nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine impulsweise Warnmeldung mit einem akustischen Warnelement und/oder einer Kontroll- Leuchte (18) vorgesehen ist.4. Laboratory thermostat according to one of claims 1 to 3, characterized in that a pulsed warning message with an acoustic warning element and / or a control lamp ( 18 ) is provided. 5. Laborthermostat nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass eine Schnittstelle (21) mit einem anschließbaren Kabel zur Fernüberwachung der Warnfunktion von außen vorgesehen ist.5. Laboratory thermostat according to one of claims 1 to 4, characterized in that an interface ( 21 ) with a connectable cable for remote monitoring of the warning function from the outside is provided. 6. Laborthermostat nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass eine kreisförmig angeordnete Folien­ tastatur (14) und ein VFD-Info-Display (15) vorgesehen sind.6. Laboratory thermostat according to one of claims 1 to 5, characterized in that a circular foil keyboard ( 14 ) and a VFD info display ( 15 ) are provided.
DE20306059U 2003-04-16 2003-04-16 laboratory thermostat Expired - Lifetime DE20306059U1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE20306059U DE20306059U1 (en) 2003-04-16 2003-04-16 laboratory thermostat
US10/818,245 US20040216862A1 (en) 2003-04-16 2004-04-05 Laboratory thermostat
CNB2004100348919A CN100345636C (en) 2003-04-16 2004-04-15 Lab thermostat
GB0408531A GB2400665B (en) 2003-04-16 2004-04-16 Laboratory thermostat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20306059U DE20306059U1 (en) 2003-04-16 2003-04-16 laboratory thermostat

Publications (1)

Publication Number Publication Date
DE20306059U1 true DE20306059U1 (en) 2003-06-18

Family

ID=7981521

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20306059U Expired - Lifetime DE20306059U1 (en) 2003-04-16 2003-04-16 laboratory thermostat

Country Status (4)

Country Link
US (1) US20040216862A1 (en)
CN (1) CN100345636C (en)
DE (1) DE20306059U1 (en)
GB (1) GB2400665B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2407703A3 (en) * 2010-07-15 2012-05-02 Preston Industries, Inc. Movable constant temperature circulator assembly
EP3835688A1 (en) * 2019-12-09 2021-06-16 Friedhelm Selbach GmbH Cooling device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8469678B2 (en) * 2010-02-03 2013-06-25 Preston Industries, Inc. Constant temperature circulator
US10532359B2 (en) * 2011-10-28 2020-01-14 Thermo Neslab Llc Circulating liquid bath with dual reservoir level switch
US20150144300A1 (en) * 2013-11-22 2015-05-28 Thermo Fisher Scientific (Asheville) Llc Recirculating Bath With Global Voltage Compatibility
CN105115186B (en) * 2015-09-15 2017-09-26 江苏天舒电器有限公司 A kind of cold and hot bascule of heat pump water-heating machine laboratory
CN109361533B (en) * 2018-09-17 2022-12-23 视联动力信息技术股份有限公司 Temperature resistance testing method and device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB953122A (en) * 1961-02-06 1964-03-25 Denis Compton Luckham Improvements in or relating to water baths
US3992941A (en) * 1974-06-10 1976-11-23 Mcgoldrick Daniel J Liquid level measuring apparatus
US5111188A (en) * 1989-10-05 1992-05-05 Harry E. Turloff Electronic fluid-level sensor with three state indicator
US5283569A (en) * 1989-12-15 1994-02-01 U.S. Army Corps Of Engineers Float actuated flood warning system with remote telephone reporting
CN2079320U (en) * 1990-11-27 1991-06-19 北京光电设备厂 High precision controller constant temp.
DE29723390U1 (en) * 1997-05-02 1998-09-03 Lauda Dr R Wobser Gmbh & Co Kg Level monitoring device in a heated bath vessel, especially a laboratory thermostat
US6028521A (en) * 1997-12-16 2000-02-22 Issachar; David Liquid level sensor
JP3101941B2 (en) * 1998-04-10 2000-10-23 坂口電熱株式会社 Liquid heating heater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2407703A3 (en) * 2010-07-15 2012-05-02 Preston Industries, Inc. Movable constant temperature circulator assembly
US8616268B2 (en) 2010-07-15 2013-12-31 Preston Industries, Inc. Movable constant temperature circulator assembly
EP3835688A1 (en) * 2019-12-09 2021-06-16 Friedhelm Selbach GmbH Cooling device

Also Published As

Publication number Publication date
GB2400665A (en) 2004-10-20
CN1539554A (en) 2004-10-27
GB2400665B (en) 2006-09-13
CN100345636C (en) 2007-10-31
US20040216862A1 (en) 2004-11-04
GB0408531D0 (en) 2004-05-19

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20030724

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20060411

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20090428

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20110330

R071 Expiry of right
R071 Expiry of right