CA2524364A1 - Controlling chemical dispense operations based on a conductivity offset - Google Patents

Controlling chemical dispense operations based on a conductivity offset Download PDF

Info

Publication number
CA2524364A1
CA2524364A1 CA002524364A CA2524364A CA2524364A1 CA 2524364 A1 CA2524364 A1 CA 2524364A1 CA 002524364 A CA002524364 A CA 002524364A CA 2524364 A CA2524364 A CA 2524364A CA 2524364 A1 CA2524364 A1 CA 2524364A1
Authority
CA
Canada
Prior art keywords
conductivity
chemical solution
water
solution
storage tank
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
CA002524364A
Other languages
French (fr)
Other versions
CA2524364C (en
Inventor
Ronald Bruce Howes, Jr.
Robert Eugene May
Jeff W. Peterson
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.)
Ecolab Inc
Original Assignee
Ecolab Inc.
Ronald Bruce Howes, Jr.
Robert Eugene May
Jeff W. Peterson
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 Ecolab Inc., Ronald Bruce Howes, Jr., Robert Eugene May, Jeff W. Peterson filed Critical Ecolab Inc.
Publication of CA2524364A1 publication Critical patent/CA2524364A1/en
Application granted granted Critical
Publication of CA2524364C publication Critical patent/CA2524364C/en
Anticipated expiration legal-status Critical
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
    • G05D11/138—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture by sensing the concentration of the mixture, e.g. measuring pH value
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0055—Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0063—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control using remote monitoring or controlling of the dishwasher operation, e.g. networking systems
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • 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
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
    • A47L15/241—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors the dishes moving in a horizontal plane
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4436—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of a detergent solution made by gradually dissolving a powder detergent cake or a solid detergent block
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/02—Consumable products information, e.g. information on detergent, rinsing aid or salt; Dispensing device information, e.g. information on the type, e.g. detachable, or status of the device
    • A47L2401/023—Quantity or concentration of the consumable product
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/30—Variation of electrical, magnetical or optical quantities
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/07—Consumable products, e.g. detergent, rinse aids or salt
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/12—Washing temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/14—Time settings
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity

Abstract

A system and method is disclosed for controlling chemical dispense operations based on a conductivity offset determined for a chemical solution. The chemical dispense operations are performed by or in conjunction with operation of a utility device, such as a warewashing machine. The chemical solution is formed in a solution tank device by combining water with at least one component chemical product. The conductivity offset, which is the conductivity of the water, is used to normalize the conductivity estimated for the chemical solution relative to the component chemical product in the solution. During various points in time during operation of the utility device, the normalized conductivity is compared to a conductivity setpoint, and if the normalized conductivity falls below the conductivity setpoint, a specified volume of the component chemical product is supplied to the solution tank.

Claims (60)

1. In a computer system, a method for controlling conductivity of a chemical solution situated in a solution storage tank, the chemical solution being formed by combining at least one component chemical product with water in the solution storage tank, the method comprising:
determining a conductivity measurement associated with the water;
after the chemical solution is formed in the solution storage tank, calculating a conductivity measurement for the chemical solution, wherein the conductivity measurement indicates a percent concentration of the component chemical product relative to water in the chemical solution; and analyzing the conductivity measurement associated with the water, the conductivity measurement of the chemical solution and a conductivity setpoint specified for the chemical solution to determine whether the component chemical product should be supplied to the solution storage tank, wherein the conductivity setpoint indicates a desired percent concentration of the component chemical product relative to water in the chemical solution.
2. A method as defined in claim 1, wherein the act of determining a conductivity measurement associated with the water comprises:
prior to supplying the component chemical product to the solution storage tank, filling the solution storage tank with the water and analyzing one or more samples of the water to generate information related to the conductivity of the water.
3. A method as defined in claim 2, wherein the act of determining a conductivity measurement associated with the water further comprises:
analyzing the information related to the conductivity of the water to render the conductivity measurement associated with the water.
4. A method as defined in claim 3, further comprising:

following the act of determining the conductivity measurement associated with the water, supplying the component chemical product to the solution storage tank to begin formation of the chemical solution therein.
5. A method as defined in claim 4, wherein the act of calculating a conductivity measurement of the chemical solution comprises:
analyzing one or more samples of the chemical solution to generate information related to conductivity of the chemical solution; and analyzing the information related to the conductivity of the chemical solution to render the conductivity measurement for the chemical solution.
6. A method as defined in claim 1, wherein the analyzing act comprises:
subtracting the conductivity measurement associated with the water from the conductivity measurement of the chemical solution to render an actual conductivity reading for the chemical solution; and comparing the actual conductivity reading of the chemical solution to the conductivity setpoint.
7. A method as defined in claim 6, further comprising:
if the actual conductivity reading for the chemical solution is less than the conductivity setpoint, requesting that a specified volume of component chemical product be supplied to the solution storage tank.
8. A method as defined in claim 7, wherein the specified volume is defined based on a relative discrepancy between the actual conductivity reading and the conductivity setpoint.
9. A method as defined in claim 7, wherein the specified volume is a predetermined volume that is to be supplied to the solution storage tank each time the actual conductivity reading of the chemical solution is less than the conductivity setpoint.
10. A method as defined in claim 7, further comprising:

if the actual conductivity reading for the chemical solution is greater than the conductivity setpoint, requesting that a specified volume of water be supplied to the solution storage tank.
11. A method as defined in claim 10, wherein the specified volume of water is defined based on a relative discrepancy between the conductivity measurement and the normalized conductivity setpoint.
12. A method as defined in claim 1, wherein the analyzing act comprises:
adding the conductivity measurement associated with the water to the conductivity setpoint to render an normalized conductivity setpoint for the chemical solution; and comparing the conductivity measurement of the chemical solution to the normalized conductivity setpoint.
13. A method as defined in claim 12, further comprising:
if the conductivity measurement of the chemical solution is less than the normalized conductivity setpoint, requesting that a specified volume of component chemical product be supplied to the solution storage tank.
14. A method as defined in claim 13, wherein the specified volume is defined based on a relative discrepancy between the conductivity measurement and the normalized conductivity setpoint.
15. A method as defined in claim 13, wherein the specified volume is a predetermined volume that is to be supplied to the solution storage tank each time the conductivity measurement of the chemical solution is less than the normalized conductivity setpoint.
16. A method as defined in claim 13, further comprising:
if the conductivity measurement of the chemical solution is greater than the normalized conductivity setpoint, requesting that a specified volume of water be supplied to the solution storage tank.
17. A method as defined in claim 16, wherein the specified volume of water is defined based on a relative discrepancy between the conductivity measurement and the normalized conductivity setpoint.
18. A method as defined in claim 1, wherein the chemical solution in the solution storage tank is used by a warewashing machine for application to articles placed therein during one or more wash processes performed in the warewashing machine.
19. A method as defined in claim 18, wherein the act of determining conductivity measurement associated with the water is performed prior to any of the one or more wash processes being performed in the warewashing machine.
20. A method as defined in claim 19, further comprising:
repeating the calculating and analyzing acts during each of the one or more wash processes performed in the warewashing machine.
21. A method as defined in claim 20, further comprising:
requesting supply of the component chemical product to the solution storage tank if the sum of the conductivity measurement associated with the water and the conductivity setpoint is greater than the conductivity measurement of the chemical solution.
22. A method as defined in claim 21, wherein the requesting act is repeated for each of the one or more wash processes performed in the warewashing machine.
23. A method as defined in claim 20, further comprising:
requesting supply of the component chemical product to the solution storage tank if the conductivity setpoint is greater than a relative difference between the conductivity measurement associated with the water and the conductivity measurement of the chemical solution.
24. A method as defined in claim 23, wherein the requesting act is repeated for each of the one or more wash processes performed in the warewashing machine.
25. A method as defined in claim 1, further comprising:
transmitting at least one of the conductivity measurement for the chemical solution and the conductivity measurement associated with the water to a remote computer over a network connection.
26. A method as defined in claim 1, further comprising:
transmitting results rendered by the analyzing act to a remote computer over a network connection.
27. A system for controlling conductivity of a chemical solution situated in a solution storage tank, the chemical solution being formed by combining at least one component chemical product with water in the solution storage tank, the system comprising:
a sensor sensing first information related to inherent conductivity of the water and second information related to conductivity of the chemical solution, wherein the conductivity of the chemical solution indicates percent concentration of the component chemical product relative to water in the chemical solution; and a controller communicatively coupled to the sensor for receiving the first and second information and analyzing the first information to render a conductivity reading for the water and the second information to render a conductivity reading for the chemical solution, wherein the controller analyzes the conductivity reading for the water, the conductivity reading for the chemical solution and a conductivity setpoint specified for the chemical solution to determine whether the component chemical product should be supplied to the solution storage tank, wherein the conductivity setpoint indicates a desired percent concentration of the component chemical product relative to water in the chemical solution.
28. A system as defined in claim 27, wherein the sensor comprises an inductive probe.
29. A system as defined in claim 27, wherein the sensor comprises a conductive cell.
30. A system as defined in claim 27, wherein the controller comprises a solid state, non-volatile memory device.
31. A system as defined in claim 27, wherein the chemical solution in the solution storage tank is used by a utility device to perform a task comprising one or more wash processes, wherein the chemical solution is applied to one or more objects during the one or more wash processes.
32. A system as defined in claim 31, wherein the sensor senses the first information and the controller analyzes the first information to render the conductivity reading for the water prior to any of the one or more wash processes being performed.
33. A system as defined in claim 32, wherein the sensor senses the second information, the controller analyzes the second information to render the conductivity reading for the chemical solution, and the controller analyzes the conductivity reading for the water, the conductivity reading for the chemical solution and the conductivity setpoint specified for the chemical solution to determine whether the component chemical product should be supplied to the solution storage tank during each of the one or more wash processes.
34. A system as defined in claim 33, wherein the utility device is a warewashing machine that applies the chemical solution to articles placed therein during the one or more wash processes.
35. A system as defined in claim 27, wherein the controller determines that the component chemical product should be supplied to the solution storage tank if the conductivity setpoint is greater than a relative difference between the conductivity reading for the water and the conductivity reading for the chemical solution.
36. A system as defined in claim 27, wherein the controller determines that the component chemical product should be supplied to the solution storage tank if the sum of the conductivity reading for the water and the conductivity setpoint is greater than the conductivity reading for the chemical solution.
37. A system as defined in claim 27, wherein the controller is connected by a network interface to a communication network, wherein data generated from analyses performed by the controller is transmitted by the network interface to a server computer over the communication network.
38. A system as defined in claim 27, wherein the controller is connected by a network interface to a communication network, wherein the first information and the second information are transmitted by the network interface to a server computer over the communication network.
39. A computer program storage device accessible to a computing system and encoding a computer program for executing a computer process for controlling conductivity of a chemical solution situated in a solution storage tank, the chemical solution being formed by combining at least one component chemical product with water in the solution storage tank, the computer process comprising acts of:
determining a conductivity measurement associated with the water;
after the chemical solution is formed in the solution storage tank, calculating a conductivity measurement for the chemical solution, wherein the conductivity measurement indicates a percent concentration of the component chemical product relative to water in the chemical solution; and analyzing the conductivity measurement associated with the water, the conductivity measurement of the chemical solution and a conductivity setpoint specified for the chemical solution to determine whether the component chemical product should be supplied to the solution storage tank, wherein the conductivity setpoint indicates a desired percent concentration of the component chemical product relative to water in the chemical solution.
40. A computer program storage device as defined in claim 39, wherein the act of determining a conductivity measurement associated with the water comprises:
prior to supplying the component chemical product to the solution storage tank, filling the solution storage tank with the water and analyzing one or more samples of the water to generate information related to the conductivity of the water.
41. A computer program storage device as defined in claim 40, wherein the act of determining a conductivity measurement associated with the water further comprises:
analyzing the information related to the conductivity of the water to render the conductivity measurement associated with the water.
42. A computer program storage device as defined in claim 41, the computer process further comprising:
following the act of determining the conductivity measurement associated with the water, supplying the component chemical product to the solution storage tank to begin formation of the chemical solution therein.
43. A computer program storage device as defined in claim 42, wherein the act of calculating a conductivity measurement of the chemical solution comprises:
analyzing one or more samples of the chemical solution to generate information related to conductivity of the chemical solution; and analyzing the information related to the conductivity of the chemical solution to render the conductivity measurement for the chemical solution.
44. A computer program storage device as defined in claim 39, wherein the analyzing act comprises:
subtracting the conductivity measurement associated with the water from the conductivity measurement of the chemical solution to render an actual conductivity reading for the chemical solution; and comparing the actual conductivity reading of the chemical solution to the conductivity setpoint.
45. A computer program storage device as defined in claim 44, the computer process comprising:
if the actual conductivity reading for the chemical solution is less than the conductivity setpoint, requesting that a specified volume of component chemical product be supplied to the solution storage tank.
46. A computer program storage device as defined in claim 45, wherein the specified volume is defined based on a relative discrepancy between the actual conductivity reading and the conductivity setpoint.
47. A computer program storage device as defined in claim 45, wherein the specified volume is a predetermined volume that is to be supplied to the solution storage tank each time the actual conductivity reading of the chemical solution is less than the conductivity setpoint.
48. A computer program storage device as defined in claim 39, wherein the analyzing act comprises:
adding the conductivity measurement associated with the water to the conductivity setpoint to render an normalized conductivity setpoint for the chemical solution; and comparing the conductivity measurement of the chemical solution to the normalized conductivity setpoint.
49. A computer program storage device as defined in claim 48, the computer process further comprising:
if the conductivity measurement of the chemical solution is less than the normalized conductivity setpoint, requesting that a specified volume of component chemical product be supplied to the solution storage tank.
50. A computer program storage device as defined in claim 49, wherein the specified volume is defined based on a relative discrepancy between the conductivity measurement and the normalized conductivity setpoint.
51. A computer program storage device as defined in claim 49, wherein the specified volume is a predetermined volume that is to be supplied to the solution storage tank each time the conductivity measurement of the chemical solution is less than the normalized conductivity setpoint.
52. A computer program storage device as defined in claim 39, wherein the chemical solution in the solution storage tank is used by a utility device to perform a task comprising one or more wash processes, wherein the chemical solution is applied to one or more objects during the one or more wash processes.
53. A computer program storage device as defined in claim 52, wherein the act of determining conductivity measurement associated with the water is performed prior to any of the one or more wash processes being performed.
54. A computer program storage device as defined in claim 53, the computer process further comprising:
repeating the calculating and analyzing acts during each of the one or more wash processes.
55. A computer program storage device as defined in claim 54, the computer process further comprising:
requesting supply of the component chemical product to the solution storage tank if the sum of the conductivity measurement associated with the water and the conductivity setpoint is greater than the conductivity measurement of the chemical solution.
56. A computer program storage device as defined in claim 55, wherein the requesting act is repeated for each of the one or more wash processes.
57. A computer program storage device as defined in claim 54, the computer process further comprising:
requesting supply of the component chemical product to the solution storage tank if the conductivity setpoint is greater than a relative difference between the conductivity measurement associated with the water and the conductivity measurement of the chemical solution.
58. A computer program storage device as defined in claim 57, wherein the requesting act is repeated for each of the one or more wash processes.
59. A computer program storage device as defined in claim 39, the computer process further comprising:
transmitting at least one of the conductivity measurement for the chemical solution and the conductivity measurement associated with the water to a remote computer over a network connection.
60. A computer program storage device as defined in claim 39, the computer process further comprising:
transmitting results rendered by the analyzing act to a remote computer over a network connection.
CA2524364A 2003-05-22 2004-04-20 Controlling chemical dispense operations based on a conductivity offset Active CA2524364C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/444,823 2003-05-22
US10/444,823 US6892143B2 (en) 2003-05-22 2003-05-22 Controlling chemical dispense operations based on conductivity offset
PCT/US2004/012260 WO2004107074A1 (en) 2003-05-22 2004-04-20 Controlling chemical dispense operations based on a conductivity offset

Publications (2)

Publication Number Publication Date
CA2524364A1 true CA2524364A1 (en) 2004-12-09
CA2524364C CA2524364C (en) 2010-02-09

Family

ID=33450759

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2524364A Active CA2524364C (en) 2003-05-22 2004-04-20 Controlling chemical dispense operations based on a conductivity offset

Country Status (8)

Country Link
US (2) US6892143B2 (en)
JP (2) JP4550826B2 (en)
CN (1) CN100533321C (en)
AU (1) AU2004244177B2 (en)
BR (1) BRPI0410399A (en)
CA (1) CA2524364C (en)
MX (1) MXPA05012470A (en)
WO (1) WO2004107074A1 (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7499810B1 (en) * 2003-09-29 2009-03-03 Knight, Llc. Inductive probe controller/conductive probe emulator
US20060080041A1 (en) * 2004-07-08 2006-04-13 Anderson Gary R Chemical mixing apparatus, system and method
US7281840B2 (en) * 2004-07-09 2007-10-16 Tres-Ark, Inc. Chemical mixing apparatus
WO2006094219A2 (en) * 2005-03-03 2006-09-08 Knight, Llc. Modular dual-purpose chemical dispensing system for laundry or warewash
KR101203847B1 (en) * 2005-06-30 2012-11-21 엘지전자 주식회사 dish washing machine having avatar image processing unit
GB2437555B (en) * 2006-04-28 2008-09-24 Brightwell Dispensers Ltd Control and monitoring apparatus for fluid dispensing means
US7818083B2 (en) * 2006-10-31 2010-10-19 Resurgent Health & Medical, Llc Automated washing system with compliance verification and automated compliance monitoring reporting
US7757700B2 (en) * 2006-10-31 2010-07-20 Resurgent Health & Medical, Llc Wash chamber for automated appendage-washing apparatus
US7698770B2 (en) * 2006-10-31 2010-04-20 Resurgent Health & Medical, Llc Automated appendage cleaning apparatus with brush
US7659824B2 (en) * 2006-10-31 2010-02-09 Resurgent Health & Medical, Llc Sanitizer dispensers with compliance verification
KR20100072233A (en) 2007-09-07 2010-06-30 존슨디버세이, 인크. Material delivery systems and methods
US8002898B2 (en) * 2007-12-19 2011-08-23 Diversey, Inc. Material delivery systems and methods
US8146613B2 (en) * 2008-04-29 2012-04-03 Resurgent Health & Medical, Llc Wash chamber for surgical environment
KR101692719B1 (en) * 2008-04-30 2017-01-04 엘지전자 주식회사 Control methed of washing machine
US20100025338A1 (en) * 2008-08-01 2010-02-04 Delaware Capital Formation, Inc. Chemical additive apparatus and methods
US8206512B2 (en) * 2009-08-10 2012-06-26 General Electric Company Automatic and manual detergent type identification to select a wash algorithm based on detergent type
EP2289385B1 (en) * 2009-08-24 2019-07-17 ELECTROLUX PROFESSIONAL S.p.A. Dishwasher comprising a descaling arrangement
JP5550364B2 (en) * 2010-01-26 2014-07-16 シスメックス株式会社 Reagent preparation device
EP2366322B1 (en) * 2010-03-18 2015-11-04 Electrolux Home Products Corporation N.V. A method for regenerating a water softener resin in a dishwasher
EP2547247B1 (en) 2010-03-18 2021-08-18 Electrolux Home Products Corporation N.V. A method for filling a wash tub of a dishwasher with water
EP2447405B1 (en) * 2010-10-28 2017-07-19 Candy S.p.A. Method and device for washing laundry
CN102432901A (en) * 2011-08-05 2012-05-02 巨化集团公司 Method for treating surface of polytetrafluoroethylene product with sodium naphthalene solution
WO2015167574A1 (en) 2014-05-02 2015-11-05 Electrolux Home Products, Inc. Methods, systems, and apparatuses for performing a quick cycle in a dishwasher
ITUB20152349A1 (en) 2015-07-21 2017-01-21 Seko Spa SELF-CALIBRATED DOSAGE METHOD
GB2567693A (en) * 2017-10-23 2019-04-24 Selden Res Ltd A chemical dosing system
CN107874727B (en) * 2017-10-24 2020-03-24 苏州菩提树智能清洗设备有限公司 Liquid medicine feeding control method for dish washing machine and dish washing machine
CN108814498B (en) * 2018-06-21 2019-12-06 安徽科恒电力科技有限公司 Ground pot chicken is with quick brush pot equipment of iron pan based on food and beverage
CN108983728B (en) * 2018-08-10 2021-04-30 青海盐湖工业股份有限公司 System for realizing automatic control of lithium washing process by using conductivity meter
CN109452916A (en) * 2018-08-15 2019-03-12 浙江绍兴苏泊尔生活电器有限公司 Dishwasher and rinsing method thereof
JP2021534911A (en) 2018-08-27 2021-12-16 エコラボ ユーエスエー インコーポレイティド Systems and technologies for extracting fine particle-containing liquid samples without filtration
JP2020092975A (en) * 2018-12-14 2020-06-18 シーバイエス株式会社 Electronic apparatus and washing system
GB201910415D0 (en) * 2019-07-19 2019-09-04 Deb Ip Ltd Liquid supply system
US20220018051A1 (en) * 2020-07-14 2022-01-20 Thomas Recine System and method for providing sanitary towels for restaurants and bars
WO2022076500A1 (en) 2020-10-08 2022-04-14 Ecolab Usa Inc. System and technique for detecting cleaning chemical usage to control cleaning efficacy
DE102021117314B4 (en) 2021-07-05 2023-07-20 Winterhalter Product & Technology GmbH Commercial dishwashing machine and method of operating such
CN114271753B (en) * 2021-12-17 2023-08-25 华帝股份有限公司 Dishwasher washing method and dishwasher

Family Cites Families (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US556478A (en) * 1896-03-17 Printing-machine
US3223108A (en) * 1962-08-21 1965-12-14 Whirlpool Co Control for laundry apparatus
US3645669A (en) * 1969-02-28 1972-02-29 Gerhard Rausch Method and arrangement for testing the liquid in washing machines
US3774056A (en) * 1971-04-29 1973-11-20 Design And Manuf Corp Digital electronic control circuit for cyclically operable appliances and the like
US4334270A (en) * 1972-08-11 1982-06-08 Towers Frederic C Securities valuation system
JPS5315303B2 (en) * 1973-12-26 1978-05-24
AU497740B2 (en) 1974-11-25 1979-01-04 Gibson Chemicals International Dishwashers and detergent dispensers
US4194242A (en) * 1976-09-22 1980-03-18 Patricia Ann Cotts Method and system for determining interest rates
US4241400A (en) * 1978-12-18 1980-12-23 General Electric Company Microprocessor based control circuit for washing appliances
US4597046A (en) * 1980-10-22 1986-06-24 Merrill Lynch, Pierce Fenner & Smith Securities brokerage-cash management system obviating float costs by anticipatory liquidation of short term assets
US4482785A (en) * 1982-09-23 1984-11-13 Finnegan Christopher D Refrigeration monitor system with remote signalling of alarm indications
US4509543A (en) * 1983-09-12 1985-04-09 Beta Technology, Inc. Industrial dishwasher monitor/controller with speech capability
US4739478A (en) * 1984-11-21 1988-04-19 Lazard Freres & Co. Methods and apparatus for restructuring debt obligations
US4756321A (en) * 1985-11-22 1988-07-12 Beta Technology, Inc. Industrial dishwasher chemical dispenser
US4682113A (en) * 1985-12-03 1987-07-21 Tbi Pure water conductivity sensor
US4733798A (en) * 1986-02-05 1988-03-29 Ecolab Inc. Method and apparatus for controlling the concentration of a chemical solution
US5043860A (en) * 1989-05-12 1991-08-27 Technology Licensing Corporation Cooking appliance interface
US5014211A (en) * 1989-06-16 1991-05-07 Diversey Corporation Microprocessor controlled liquid chemical delivery system and method
US5031258A (en) * 1989-07-12 1991-07-16 Bauer Industries Inc. Wash station and method of operation
US5301553A (en) * 1989-12-20 1994-04-12 Tjs Development Corporation Apparatus for remote sensing and receiving
US5077525A (en) * 1990-01-24 1991-12-31 Rosemount Inc. Electrodeless conductivity sensor with inflatable surface
US5038807A (en) * 1990-04-16 1991-08-13 Ecolab, Inc. Performance monitoring system for warewashing machines
SE9003557L (en) * 1990-11-08 1992-05-09 Bernt Griverus METHODS AND DEVICES FOR CONTROL AND MONITORING OF A GAS OR WELL-SUPPLY SYSTEM WITH SENSORS USING SENSORS OF PHYSICAL SIZES SUCH AS MOISTURE, PRESSURE, TEMPERATURE ETC
US5222027A (en) * 1990-12-14 1993-06-22 Titan Industries, Inc. Injector communications system
US5345379A (en) * 1991-06-17 1994-09-06 Brous James H System for controlling access to subsystems
JPH05215703A (en) * 1992-01-21 1993-08-24 Supiide Fuamu Clean Syst Kk Method and device for controlling detergent concentration
US5203366A (en) * 1992-02-05 1993-04-20 Ecolab Inc. Apparatus and method for mixing and dispensing chemical concentrates at point of use
US5404893A (en) * 1992-03-12 1995-04-11 Ecolab Inc. Self-optimizing detergent controller
US5681400A (en) * 1992-03-12 1997-10-28 Ecolab Inc. Self-optimizing detergent controller for controlling variable additive concentration level in a warewashing machine
US5397028A (en) * 1992-04-29 1995-03-14 Jesadanont; Mongkol Automatic fluid dispenser and method
US5370267A (en) * 1993-10-04 1994-12-06 Gojo Industries Inc. Method and apparatus for measuring dispenser usage
JP3494756B2 (en) * 1994-05-25 2004-02-09 富士写真フイルム株式会社 Monitoring method of washing water for developing photosensitive material
US5745381A (en) * 1994-06-27 1998-04-28 Matsushita Electric Industrial Apparatus and method for evaluating operability of appliances and an apparatus for improving the operability of the appliances
US5757664A (en) * 1996-06-04 1998-05-26 Warren Rogers Associates, Inc. Method and apparatus for monitoring operational performance of fluid storage systems
US5491791A (en) * 1995-01-13 1996-02-13 International Business Machines Corporation System and method for remote workstation monitoring within a distributed computing environment
US5694323A (en) * 1995-04-04 1997-12-02 Persyst, Inc. Monitoring system with particular application to monitoring a cash-basis operation
US5625659A (en) * 1995-05-19 1997-04-29 Gojo Industries, Inc. Method and apparatus for electronically measuring dispenser usage
JPH0924016A (en) * 1995-07-11 1997-01-28 T Paul Kk Automatic dish washer
US6618754B1 (en) * 1995-10-23 2003-09-09 Sun Microsystems, Inc. System for transmission of embedded applications over a network
US5695091A (en) * 1995-10-25 1997-12-09 The Path-X Corporation Automated dispenser for disinfectant with proximity sensor
US5724261A (en) * 1996-02-05 1998-03-03 Rent Roll, Inc. Data processing system and method for compiling data during property inspection and maintenance operations
US5826749A (en) * 1996-02-22 1998-10-27 Nova Controls Multiplexed system for dispensing multiple chemicals to multiple destinations
DE19615840A1 (en) * 1996-04-20 1997-10-30 Bosch Gmbh Robert Household electrical appliance
US5875430A (en) * 1996-05-02 1999-02-23 Technology Licensing Corporation Smart commercial kitchen network
JPH1052590A (en) * 1996-05-28 1998-02-24 Samsung Electron Co Ltd Washing machine and washing control method therefor
US5810201A (en) * 1996-07-22 1998-09-22 Ecolab Inc. Interactive dispenser for personal use chemical or personal care chemical that provides a message prompted by user proximity
EP0853788A1 (en) * 1996-08-08 1998-07-22 Agranat Systems, Inc. Embedded web server
US5956487A (en) * 1996-10-25 1999-09-21 Hewlett-Packard Company Embedding web access mechanism in an appliance for user interface functions including a web server and web browser
US6003070A (en) * 1997-02-25 1999-12-14 Intervvoice Limited Partnership E-mail system and interface for equipment monitoring and control
JPH10240813A (en) * 1997-02-26 1998-09-11 Honda Motor Co Ltd Work management system
US5967202A (en) * 1997-06-05 1999-10-19 Ecolab Inc. Apparatus and method for dispensing a sanitizing formulation
US6389464B1 (en) * 1997-06-27 2002-05-14 Cornet Technology, Inc. Device management system for managing standards-compliant and non-compliant network elements using standard management protocols and a universal site server which is configurable from remote locations via internet browser technology
US5975352A (en) * 1997-08-28 1999-11-02 Ecolab Inc. Dispenser
US6133847A (en) * 1997-10-09 2000-10-17 At&T Corp. Configurable remote control device
US6061668A (en) * 1997-11-10 2000-05-09 Sharrow; John Anthony Control system for pay-per-use applications
US5980090A (en) * 1998-02-10 1999-11-09 Gilbarco., Inc. Internet asset management system for a fuel dispensing environment
US5945910A (en) * 1998-02-11 1999-08-31 Simoniz Usa, Inc. Method and apparatus for monitoring and reporting handwashing
US5939974A (en) * 1998-02-27 1999-08-17 Food Safety Solutions Corp. System for monitoring food service requirements for compliance at a food service establishment
US6356205B1 (en) * 1998-11-30 2002-03-12 General Electric Monitoring, diagnostic, and reporting system and process
JP3095002B2 (en) * 1998-12-02 2000-10-03 松下電器産業株式会社 Dishwasher
US6133555A (en) * 1999-02-09 2000-10-17 Brenn; Eric Walter Zero defect management system for restaurant equipment and environment equipment
US6330499B1 (en) * 1999-07-21 2001-12-11 International Business Machines Corporation System and method for vehicle diagnostics and health monitoring
US6377868B1 (en) * 1999-10-28 2002-04-23 Ecolab Inc. Data processing system for managing chemical product usage
US6498567B1 (en) * 1999-12-20 2002-12-24 Xerox Corporation Generic handheld remote control device
CA2407534A1 (en) * 2000-04-25 2001-11-01 Johnsondiversey, Inc. System for monitoring an industrial cleaning process or machine
AU2001258354A1 (en) * 2000-04-25 2001-11-07 Johnsondiversey, Inc. Method and system for supplying management services from a service centre for a plurality of industrial cleaning processes or machines
CA2407583A1 (en) * 2000-04-25 2001-11-01 Johnsondiversey, Inc. Method for supplying maintenance and operational support services from a service centre for a plurality of industrial cleaning processes or machines and system for monitoring a plurality of industrial cleaning processes or machines
WO2001084258A1 (en) * 2000-04-25 2001-11-08 Johnsondiversey, Inc. Method for supplying management services from a service centre for a plurality of industrial cleaning processes or machines and system for monitoring a plurality of industrial cleaning processes or machines

Also Published As

Publication number Publication date
US20040236522A1 (en) 2004-11-25
JP4550826B2 (en) 2010-09-22
US20050149273A1 (en) 2005-07-07
CN1795423A (en) 2006-06-28
AU2004244177B2 (en) 2010-09-16
JP2009244281A (en) 2009-10-22
BRPI0410399A (en) 2006-07-04
JP2007514132A (en) 2007-05-31
MXPA05012470A (en) 2006-02-22
CN100533321C (en) 2009-08-26
WO2004107074A1 (en) 2004-12-09
US6892143B2 (en) 2005-05-10
AU2004244177A1 (en) 2004-12-09
JP5270483B2 (en) 2013-08-21
US6990411B2 (en) 2006-01-24
CA2524364C (en) 2010-02-09

Similar Documents

Publication Publication Date Title
CA2524364A1 (en) Controlling chemical dispense operations based on a conductivity offset
CN101147060B (en) Method and system for measuring water hardness
Machesky et al. Potentiometric titrations of rutile suspensions to 250 C
US6668922B2 (en) Method of optimizing the design, stimulation and evaluation of matrix treatment in a reservoir
CN103380370B (en) Karl Fischer titration apparatus and Karl Fischer titration method
US11186935B2 (en) Flushing compartment for storage monitoring
EP3485077A1 (en) Method and device for supply monitoring
CN114236068B (en) Chloride ion concentration analysis method and system based on circulating water system
CN110440888A (en) A kind of truck scale stable state automatic judging method and device
CN106415294A (en) Test method and test apparatus of sensing module
CN111352058A (en) Method for in-process calibration of a potentiometric sensor of a measuring device
CN111270478A (en) Detergent feeding method and washing machine
CN109376045A (en) A kind of BIOS parameter automatization verifying device and verification method
CN206057607U (en) A kind of evaluation system based on reservoir
CN204584732U (en) Wheel automatic processing system
CN113335825B (en) Dynamic positioning method and device for goods location and electronic equipment
Kremenetsky et al. Quantum-Chemical Study of the Charge Transfer Mechanism in the MgTiF6–12MgCl2 System
JP2012192512A (en) Electric discharge machine
CN110878411B (en) Control method and device of vapor deposition process, medium and electronic equipment
Bosma et al. Simulation and areal interpolation of reactive solute transport
KR19990016616A (en) Plating solution automatic analysis and control device
Kangas et al. Multi-phase thermodynamic modelling of pulp suspensions: Review of the methodology
Balter et al. Effect of nonlinearity in hybrid kinetic Monte Carlo–continuum models
Delbari et al. Trend analysis and spatial distribution pattern of groundwater quality in Khash region
Shayegani et al. Mild steel carbon dioxide corrosion modelling in aqueous solutions

Legal Events

Date Code Title Description
EEER Examination request