GB2335044A - Apparatus for monitoring substances in an aqueous stream - Google Patents
Apparatus for monitoring substances in an aqueous stream Download PDFInfo
- Publication number
- GB2335044A GB2335044A GB9804616A GB9804616A GB2335044A GB 2335044 A GB2335044 A GB 2335044A GB 9804616 A GB9804616 A GB 9804616A GB 9804616 A GB9804616 A GB 9804616A GB 2335044 A GB2335044 A GB 2335044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- monitoring apparatus
- substance
- control means
- monitoring
- aqueous stream
- 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
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 69
- 239000000126 substance Substances 0.000 title claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- -1 ammonium ions Chemical class 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910001431 copper ion Inorganic materials 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- FCWVWCUHRVQDLW-UHFFFAOYSA-N manganese;methane Chemical compound C.C.[Mn].[Mn].[Mn].[Mn].[Mn] FCWVWCUHRVQDLW-UHFFFAOYSA-N 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 230000006870 function Effects 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 101100313003 Rattus norvegicus Tanc1 gene Proteins 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
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
- G01N33/1893—Water using flow cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00594—Quality control, including calibration or testing of components of the analyser
- G01N35/00712—Automatic status testing, e.g. at start-up or periodic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Quality & Reliability (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The apparatus comprises a substance detector cell 16, a fluid pump 18 arranged to pump selectively either calibration liquid or sample from the fluid stream to the detector, and a control means which controls the monitoring apparatus and collects information from the detector. In a first embodiment, the control means includes a first memory area storing a plurality of driver routines, and a second memory storing a plurality of task operators, each of the latter selectively operating one or more driver routines in a predetermined manner. In a second embodiment, the detector monitors samples over time, and an output device displays either a single result (ie the most recent), or a plurality of results at one time. In a third embodiment, the control includes a flash memory device and a communications port, so that the apparatus can be easily programmed. The apparatus may monitor contaminants in water.
Description
1 is 2335044 A Monitoring Apparatus The present invention relates to a
monitoring apparatus f or monitoring the level of a substance in an aqueous stream. In particular, but not exclusivelyr the present invention relates to a monitoring apparatus which monitors the level of contaminants in an aqueous stream.
There are a number of known apparatus f or monitoring the levels of a substance within an aqueous stream such as the EIL 8230 Series produced by ABB Kent-Taylor Limited and the Tytronics FPA 800.
The present invention seeks to provide further monitoring apparatus.
According to a first aspect of the present invention there is provided a monitoring apparatus f or monitoring the level of a substance in an aqueous stream, comprising a substance-detector means, a f luid pump arranged to pump selectively either a calibration-aliquot or a samplealiquot f rom the aqueous stream to the substance-detector means, and a control means arranged to control the monitoring apparatus and collect information fro m the substance-detector means. wherein the control means includes a first memory area arranged to store a plurality of driver-routines and a second memory area arranged to store a plurality of task-operators, each task-operator selectively operating one or more driver-routines in a predetermined manner.
A monitoring apparatus of the above described type has the significant advantage that the control of the apparatus is split between generic functions and task specific functions. This allows the generic functions to be contained within a structure that can be incorporated into a range of dif f erent monitors and only the task-specif ic control element having to be specifically designed for the 1 particular monitor. This can significantly reduce production costs.
Preferably the driver-routines are generic for a plurality of substances and/or a plurality of detection principles. The task-operators will normally be specific for the substance being monitored. The present invention is particularly advantageous when the driver-routines are generic for different types of detection principle, for example for ion selective electrodes and for colorimetric measurements. This allows the various monitors to share components on seemingly quite diverse monitors.
It is particularly preferred if the substance to be monitored is selected from the group consisting of ammonia or ammonium ions; chlorine or chloride ions; colour; conductivity; copper or copper ions; dissolved oxygen; oxygen or oxygen ions; flow; fluorine or fluoride ions; hydrazine; iron or iron ions; manganese; methane; nitrate; pH; phosphate; Redox (ORP); silica; suspended solids; temperature; turbidity; and water hardness. The first memory area will preferably include drive-routines fo - r more than one of said group of substances, e.g. 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 or 23 of said substances. In fact the monitoring apparatus of the present invention may monitor any one of the fifty six water supply parameters set forth in the Water Supply (Water Quality) Regulation 1989 which are listed in Appendix F.
Preferably, the monitoring apparatus further includes a user input device arranged to transfer user commands to the control means. As the driverroutines are common regardless of the specific type of monitor, this has the advantage that the user input will inherently follow the same format which is advantageous with users using a variety of the monitor.
is According to a second aspect of the present invention there is provided a monitoring apparatus for monitoring the level of a substance in an aqueous stream, comprising a subs tanc e -detector means,' -a fluid pump arranged to pump selectively either a calibration-aliquot or a samplealiquot from the aqueous stream to the substance-detector means, and a control means arranged to control the monitoring apparatus and collect information from the substance-detector means, wherein the subs tanc e -detector means monitors samples over time and the control stores a number predetermined of monitored results. the apparatus further including an output device arranged to selectively display either a single result (e.g.the most recent result) or a plurality of said results at one time.
The monitoring apparatus according to the second aspect of the present invention has the advantage that the user can control how the results are displayed. Although previously the known monitoring apparatus could output the results to a chart plotter or the like, this did not allow ready manipulation on the data. The present invention thus provides a way that the user can manipulate the historical information or merely display current information.
In a preferred embodiment of the second aspect of the invention, the plurality of said results is selected from the results collected over a first time period and the results collected over a second time period. Thus, the user can choose to display, for example, the results over a twenty-four hour time period and can then make an assessment whether there is a particular trend to daily levels of the monitored substance and if there are any abnormalities in this trend. Alternatively, the user can display a shorter time period, e.g. two hours, to see if an abnormal situation which is being corrected is reversing towards the normal levels for the monitored substance or if further correction is necessary. Such manipulations were not readily undertaken when the monitoring apparatus had to be hooked to a discrete device and the data manipulated on this discrete device. The time periods may of course be varied depending upon the particular application.
Preferably, the plurality of said results are displayed as a graph; such a graphical output is preferred because the user can then readily interpret the information.
According to a third aspect of the present invention. there is provided a monitoring apparatus having features of both the first aspect and the second aspect of the invention.
Preferably, the monitoring apparatus according to the third aspect of the present invention or the first aspect of the present invention further includes a graphical interface arranged to display information for a user. This is particular advantageous because the graphical interface will inherently be very similar between different monitoring apparatus which share the generic platform of the first embodiment of the present invention. This is preferred by users of the apparatus.
According to a fourth aspect of the present invention there is provided a monitoring apparatus for monitoring the level of a substance in an aqueous stream, comprising a sub st anc e -detector means, a fluid pump arranged to pump selectively either a calibration-aliquot or a samplealiquot from the aqueous stream to the substance-detector means, and a control means arranged to control the monitoring apparatus and collect information from the substance-detector means, wherein control means includes a flash memory device and a communications port. This allows for easy maintenance and updating of the apparatus.
It is preferable that the control means includes a is flash memory device and a communications port in all aspects of the invention.
Advantageously, the control means includes means to interrogate peripheral devices and automatically incorporate peripheral devices into the monitoring apparatus.
The invention will now be described with reference to the accompanying drawings, in which:
Fig. 1 illustrates a monitoring apparatus of the present invention; Fig. 2 is an exploded view of a flow cell assembly for use with the present invention; Fig. 3 shows a cross section through the flow cell assembly of Fig. 2 along the section AA of Fig. 4; Fig. 4 shows a top plan view of the flow cell assembly of Fig. 2 with the heating element and heat sensor shown in dotted outline; Fig. 5 shows a side view of the flow cell assembly of Fig. 2; Fig. 6 shows a sample pot holder f or use with the present invention; Fig. 7 shows a pump assembly suitable for use with the present invention; Fig. 8 depicts the modular design of software used with a preferred embodiment of the present invention and gives details of the task- operators assigned to the task specific system; Fig. 9 depicts the menu screen structure for a preferred embodiment of the present invention which can be adapted dependent upon the particular monitoring activity undertaken by the monitoring apparatus but the basic screen format remaining the same.
Figure 1 shows a particularly preferred design of the is present monitoring apparatus incorporating all aspects of the present invention. The apparatus is housed within housing 10. This housing includes a recessed portion 28 which is covered by a transparent door 32 mounted on hinges 30. Within this recessed portion 28 the main mechanical components of the monitoring apparatus are contained, namely the flow cell 16 fluidly connected to the pump 18 which has selective input means 20. The various components are thus easily accessible for maintenance operations through the door 32.
The housing 10 also includes the device 12 which comprises the graphical output device and graphical user interface. This will normally have three or more lines of display. User inputs 14 are provided below the graphical output device 12. External connector ports 24, 26 are shown illustratively on the side of the housing 10.
Turning now to Figures 2 to 5 which show details of the flow cell assembly 16. The assembly 16 comprises a support bracket 54 through which a temperature sensor 64 and a heater element 62 are fitted. The aluminium heater elements 52 are split into two parts, namely a lower element 52L and an upper element 52U. The lower element is shaped to fit on the support bracket 54 juxtaposed to a flow cell housing 50 also fitted to the support housing 54.
The flow cell housing 50 is sealed by 0-rings 68. The lower heater element 52L and the flow cell housing 50 are fixed to the support bracket 54 by means of a finger ring 56 which tightens on to the lower heater element 52L. The upper heating element 52U fits within the finger ring 56 and is surrounded by an insulating ring 58 to reduce heat transferral from the upper heater element 52U to the finger ring 56 and is also covered by an insulating plate 60 to reduce hot parts which could be touched by an operator. A probe can be fitted through openings in the insulating is cover 60, 52U and 52L to extend into the flow cell 50 in a channel formed therein. In the present example this probe would be in the f orm of an ion selective electrode which can then be brought into contact with the aqueous stream for monitoring the presence of the substance, for example in a sample pot as shown in Figure 6. The Figures 3 to 5 show various constructional details of the flow cell assembly which is particularly preferred in the present invention. One of the major advantages of this flow cell assembly 16 in the present invention is that routine maintenance to the heating elements, flow cell, etc. can be undertaken without the need for removal of the flow cell from the monitor apparatus. This does not require any tools as the flow cell can be disassembled to a sufficient degree simply by undoing the finger ring 56.
The flow cell assembly 16 is mounted on to the housing 10 with gasket 66 extending therebetween. As you will see, the flow cell does not have any electronics contained therewithin but the heater element is operatively connected to the control means (described in detail hereinafter) as is the temperature sensor 64.
Of course, previously known flow cells could also be used but this is not preferred. Advantageously, embodiments of the invention (not shown) will adopt other detection principles such as colorimetric measurement.
The pump assembly is shown in Figure 7 and comprises a peristaltic pump, though of course a diaphragm pump could alternatively be used or any other suitable pump apparatus. Suitable pumps are readily available, for example Watson Marlow Limited produce a "micro cassette" pump head, manufacturers reference 304MC3 can be used and preferably this would be modified to a two-channel device as a threechannel device is not required for the present invention. Preferably the pump will be mounted in a way that it can be 1 simply removed from within the recessed portion 28 without the need f or tools, for example it can be mounted on a bayonet fitting. The pump will be supplied with the fluid to be monitored through tubing arrangement shown as item 20 in Figure 1. Normally these tubing arrangements will selectively provide a first calibration fluid (for low end calibration), a second calibration supply (for high end calibration) and normally would supply the samples from the aqueous stream being monitored. Please note that the calibration supplies will normally be permanently connected to the apparatus to facilitate automatic calibration on a regular basis.
Turning now to Figures 8 and 9, and Appendix A, Appendix B, Appendix C, Appendix D and Appendix E. The control of the monitoring apparatus is controlled by control means (not shown) except by means of the input/output device connected thereto as Unit 12, 14. The control means comprises a process instrumentation platform which provides a standard CPU, LCD display, four button input, Ram, Rom, real-time clock, RS232/485 port, SPI, and I1C f acilities. This stand alone unit contains all the necessary control functions for running the monitoring apparatus. Many of the control functions are implemented via software as this provides a convenient way to allow for updating and implementing these routines. The invention is described with reference to a particular range of ion selective electrode monitors (ISE Series 1000) though of course other measurement principles and adaptations can be readily made by the skilled person.
The control means operate by interactions of two distinct programme parts, as shown in Figure 8. Firstly there is a generic range of software applications provided as a library of functions within the software "kernel,, described in detail in Appendix D. The various drivers and is control routines provided within the kernel are designed to be generic through a great variety of different monitors.
Each monitor is then provided with application software tailored for the particular monitoring activity of a particular installation. These application software will call upon routines f rom. the kernel as required by the monitoring activity and will be controllable by user input. Important in providing the user with information to control the apparatus, the graphical interface 12 will provide information on options available to the user who can then select the appropriate options by means of the input devices 14. There is the inherent advantage of using the common platform that the nature of inputting commands and the types of inputs to be made will be standardised across all types of monitors using the generic platform. An example of the screen format used is given in Appendix E.
The routines given in the Appendices can be readily adapted by the skilled person for other particular applications, though of course each Appendices describes the software structure in relation to a particular embodiment of the present invention, namely an ion electrode monitoring apparatus.
The generic platform provides a communication port 24 for connection to an output chart logger or the like. In addition, the control means also includes a communication port 26 which allows communication to the control panel via a PC or even modem linkup. This is particularly advantageous when the control means, as in the present embodiment, is provided with as flash memory for containing the various programme structures. In this way the apparatus can be maintained, updated or inspected by remote linkup through a modem. This is of particular importance in the present invention as often the devices of the present invention are located in geographically diverse places and do not have operators who can attend to these high level maintenance operations. The use of flash memory thus allows many of these functions to be done remotely without the need for on site presence. Clearly this is economically and commercially advantageous to both users and suppliers of the monitoring apparatus.
Preferably, the control means is also provided with I1C functionality although units may be connected by simple peripheral interface. The I'C interface will allow units to be introduced into the unit and be automatically recognised and incorporated within the control structure without specific input from a user. This is of particular importance if, for example, a further function is required to the unit which was not required when first produced. For example, if the unit requires "fieldbus" functionality such a I'fieldbus" unit can be mounted in the housing 10, connected to the control board which would then interrogate this new unit, determine its purpose and incorporate it to within the control structure. This greatly simplifies updating and renovation of the equipment.
The details of the software implementation, for example the software presentation of the kernel, can be amended, expanded upon or altered as required for a particular monitoring apparatus or a range of monitoring apparatus. The present invention has been implemented from software products available to the skilled person. The basic programming of the platform may, for example, be accomplished using software available from Accelerated Technology, Inc., Nucleus PLUS - Borland Paradigm Port80186. Individual designs of screens, etc. was undertaken by graphic designers to present the information in a userfriendly way.
Details of the basic operation and control of the preferred embodiment of the invention will be readily apparent in the Appendices A to E which the skilled person can readily adapt for other monitoring applications.
n
Claims (1)
- CLAIMS:1. A monitoring apparatus for monitoring the level of a substance in an aqueous stream, comprising a sub stance -detector means, a f luid pump arranged to pump selectively either a calibration-aliquot or a samplealiquot from the aqueous stream to the substance-detector means, and a control means arranged to control the monitoring apparatus and collect information from the substance-detector means, wherein the control means includes a first memory area arranged to store a plurality of driverroutines and a second memory area arranged to store a plurality of taskoperators, each task-operator selectively operating one or more driverroutines in a predetermined manner.2.The monitoring apparatus according to claim 1, wherein the driverroutines are generic f or a plurality of substances and/or a plurality of detection principles.The monitoring apparatus according to claim 1 or 2, wherein the taskoperators are specific for the substance being monitored.The monitoring apparatus according to any one of the preceding claims, wherein the substance to be monitored is selected from the- group consisting of:ammonia or ammonium ions; chlorine or chloride ions; colour; conductivity; copper or copper ions; dissolved oxygen; oxygen or oxygen ions; flow; fluorine or fluoride ions; hydrazine; iron or iron ions; manganese; methane; nitrate; pH; phosphate; Redox (ORP); silica; suspended solids; temperature; turbidity; and water hardness; is 5. The monitoring apparatus according to claim 4, wherein the first memory area includes dkiver-routines for more than one of said group of substances.6. The monitoring apparatus according to any one of the preceding claims, further including a user input device arranged to transfer user commands to the control means.7 A monitoring apparatus for monitoring the level of a substance in an aqueous stream, comprising a sub stance -detector means, a fluid pump arranged to pump selectively either a calibration-aliquot or a samplealiquot from the aqueous stream to the substance-detector means, and a control means arranged to control the monitoring apparatus and collect information from the substance-detector means, wherein the substancedetector means monitors samples over time and the control stores a number predetermined of monitored results, the apparatus further including an output device arranged to selectively display either a single result (e.g. the most recent result) or a plurality of said results at one time.8. The monitoring apparatus according to claim 10, wherein the plurality of said result is selected from the results collected over a first period and the results collected over a second time period.9. The monitoring apparatus according to claim 6 or claim 7, wherein the plurality of said results is displayed as a graph.10. A monitoring apparatus according to any one of claims 1 to 6 and according to any one of claims 7 to 9.is 11. A monitoring apparatus for monitoring the level of a substance in an aqueous stream, comprising a sub st anc e -detector means, a f luid pump arranged to pump selectively either a calibration-aliquot or a sample- aliquot from the aqueous stream to the sub st anc e -detector means, and a control means arranged to control the monitoring apparatus and collect information from the substance-detector means, wherein control means includes a f lash memory device and a communications port.12. A monitoring apparatus according to any one of claims 1 to 10, wherein the control means includes a f lash memory device and a communications port.13. The monitoring apparatus according to any one of the preceding claims, wherein the control means includes means to interrogate peripheral devices and automatically incorporate peripheral devices into the monitoring apparatus.14. The monitoring apparatus according to any one of the preceding claims, wherein the apparatus includes a flow cell arranged to hold a fluid sample and a heater element arranged to heat the fluid sample to a predetermined temperature; the f low cell and the heater element being assembled together by assembly means in an assembly-position, wherein the assembly means is manually transferable to a disassembly position.15. The monitoring apparatus according to claim 14, wherein the assembly means comprises a threaded ring which engages a threaded portion of the heater element or flow cell.16. The monitoring apparatus according to claim 14 or Claim 15, further including a support housing on which the heater element and flow cell are mounted.17. The monitoring apparatus according to claim 14, claim 15 or Claim 16, wherein the heater element comprises a two-part element.18. The monitoring apparatus according to any one of claims 14 to 17, wherein the assembly means is thermally insulated from the heating element.19. The monitoring apparatus according to any one of claims 14 to 18, wherein the heating element is thermally insulated on all surfaces which would otherwise be externally exposed.20. A monitoring apparatus as hereinbefore described and/or illustrated in the accompanying drawings and/or described in one or more of the appendices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9804616A GB2335044B (en) | 1998-03-04 | 1998-03-04 | A monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9804616A GB2335044B (en) | 1998-03-04 | 1998-03-04 | A monitoring apparatus |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| GB9804616D0 GB9804616D0 (en) | 1998-04-29 |
| GB2335044A true GB2335044A (en) | 1999-09-08 |
| GB2335044B GB2335044B (en) | 2002-10-16 |
| GB2335044A8 GB2335044A8 (en) | 2003-05-13 |
Family
ID=10827983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9804616A Expired - Fee Related GB2335044B (en) | 1998-03-04 | 1998-03-04 | A monitoring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2335044B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002101372A3 (en) * | 2001-02-09 | 2003-10-30 | United States Filter Corp | System for optimized control of multiple oxidizer feedstreams |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410322A (en) * | 2020-02-28 | 2020-07-14 | 华电电力科学研究院有限公司 | Online intelligent circulating water softening treatment device and working method thereof |
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| GB2222681A (en) * | 1987-04-24 | 1990-03-14 | Smithkline Diagnostics Inc | Enzymatic electrode and electrode module and method of use |
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| US5299141A (en) * | 1989-12-22 | 1994-03-29 | American Sigma, Inc. | Automatic fluid monitoring and sampling apparatus and method |
| WO1995002189A1 (en) * | 1993-07-07 | 1995-01-19 | Abaxis, Inc. | System and method for incorporating analytical instruments within personal computers |
| WO1995002426A1 (en) * | 1993-07-13 | 1995-01-26 | Sims Deltec, Inc. | Medical pump and method of programming |
| EP0637808A2 (en) * | 1993-07-27 | 1995-02-08 | Bayer Corporation | Buttonless memory system for an electronic measurement device |
| WO1995004355A1 (en) * | 1993-07-29 | 1995-02-09 | Atmel Corporation | Remotely re-programmable program memory for a microcontroller |
| WO1997014039A1 (en) * | 1995-10-09 | 1997-04-17 | Korea Ocean Research & Development Institute | An automated analyzing apparatus for measuring water quality with a cylinder-shaped syringe unit |
| WO1997037218A2 (en) * | 1996-03-29 | 1997-10-09 | Byk Gulden Italia S.P.A. | Automatic diagnostic apparatus |
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1998
- 1998-03-04 GB GB9804616A patent/GB2335044B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2222681A (en) * | 1987-04-24 | 1990-03-14 | Smithkline Diagnostics Inc | Enzymatic electrode and electrode module and method of use |
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| WO1997014039A1 (en) * | 1995-10-09 | 1997-04-17 | Korea Ocean Research & Development Institute | An automated analyzing apparatus for measuring water quality with a cylinder-shaped syringe unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002101372A3 (en) * | 2001-02-09 | 2003-10-30 | United States Filter Corp | System for optimized control of multiple oxidizer feedstreams |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2335044B (en) | 2002-10-16 |
| GB2335044A8 (en) | 2003-05-13 |
| GB9804616D0 (en) | 1998-04-29 |
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