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BA387C/07/en/06.05
51518696

Operating Instructions

Oxymax W COS61

Dissolved oxygen sensor

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Summary of Contents for Oxymax W COS61

Page 1: ...BA387C 07 en 06 05 51518696 Operating Instructions Oxymax W COS61 Dissolved oxygen sensor ...

Page 2: ...er to these pages for sensor wiring Æ Sensor design and measuring principle ä 16 ä 17 ä 17 Here you can read about the sensor design The measuring principle is explained on this page Here you can find the possible calibration methods Æ Maintenance ä 21 ä 26 Regular maintenance tasks such as cleaning the sensor are absolutely essential and prolong the operating time of the sensor Here you can find ...

Page 3: ... 1 Direct connection to the transmitter 14 4 2 Connection via junction box 15 4 3 Post connection check 15 5 Device description 16 5 1 Sensor design 16 5 2 Measuring principle 17 5 3 Calibration 17 6 Commissioning 20 6 1 Function check 20 6 2 Calibration 20 7 Maintenance 21 7 1 Cleaning the sensor 21 7 2 Regenerating 22 8 Accessories 23 8 1 Connection accessories 23 8 2 Installation accessories 23...

Page 4: ... technical personnel must be authorized for the specified activities by the system operator Technical personnel must have read and understood these Operating Instructions and must adhere to them Before commissioning the entire measuring point check all the connections for correctness Ensure that hose connections are not damaged Do not operate damaged products and secure them against unintentional ...

Page 5: ... completed Declaration of contamination 1 5 Notes on safety icons and symbols 1 6 Cross reference symbols Warning This symbol alerts you to hazards They can cause serious damage to the instrument or to persons if ignored Caution This symbol alerts you to possible faults which could arise from incorrect operation They could cause damage to the instrument if ignored Note This symbol indicates import...

Page 6: ...ou have any questions please contact your supplier or your sales center responsible Certificate A Version for non hazardous area Cable length incl extension cable 0 Cable length 1 5 m 4 9 ft 1 Cable length 7 m 23 ft 2 Cable length 15 m 49 ft 8 No cable for replacement for TOP 68 version 9 Special version upon request Sensor head F Thread G1 fixed cable with SXP connector S Thread G1 TOP68 connecto...

Page 7: ...d Check that the scope of delivery is complete and agrees with your order and the shipping documents The packaging material used to store or to transport the product must provide shock protection and humidity protection The original packaging offers the best protection Also keep to the approved ambient conditions see Technical data If you have any questions please contact your supplier or your sal...

Page 8: ...ation Select the installation location so that there is easy access for later calibration Make sure that upright posts and assemblies are secured safely and vibration free For immersed operation in an activated sludge basin select an installation location which produces a typical oxygen concentration 3 3 Installation instructions 3 3 1 Measuring system A complete measuring system comprises at leas...

Page 9: ...used into the process 2 Connect the water supply to the rinse connections if you use an assembly with cleaning function 3 Install and connect the oxygen sensor 4 Install an immersion or a suspension assembly if used into the process Caution For immersed operation the sensor must be installed in an immersion assembly e g CYA611 Do not install the sensor suspended from the cable Screw the sensor int...

Page 10: ...ht post A good self cleaning of the fluorescence caps is reached due to the swinging of the assembly According to this effect the sensor life time can be extended a0004103 en Fig 5 Universal assembly holder CYH101 with immersible pendulum assembly CYA611 1 Weather protection cover 2 Upright post square pipe SS 1 4301 AISI 304 3 Transverse pipe SS 1 4301 AISI 304 4 Star handle 5 Second fixing possi...

Page 11: ...ssembly holder CYH101 with immersion tube CYY105 1 Star handle 2 Pipe support 3 Fixing bracket 4 Immersion assembly immersion tube Basin rim mounting with immersion tube For fixing to the sides of the basin or channel we recommend immersion assembly basin rim mounting å 8 å 9 If there is strong turbulence or flow a second basin rim mounting must be used for the immersion assembly a0004106 Fig 8 Ho...

Page 12: ... 1 2 3 4 5 6 7 Cable route with strain relief and rain protection Mounting ring for ropes and chains with locking screw Lugs Ø15 3 x 120 for anchoring Saltwater resistant plastic float Pipe 40x1 stainless steel SS 1 4571 AISI 316Ti Shock absorber and weight Oxygen sensor a0004113 en Fig 11 Flow assembly COA250 B 1 Screw in part for sensor 2 Screw ring 3 Meter body 4 Connection thread G 5 Dummy plu...

Page 13: ...on 4 Overhead installation critical due to possible sediment buildup on fluorescence cap 5 Down pipe impermissible Note Do not install the assembly at places where air cushions or foam bubbles can be formed or where suspended particles can settle on the sensor optics å 13 Measuring errors can occur if the sensor is not immersed into the medium suspended particles are settled on the sensor membrane...

Page 14: ...gray wire 4 1 1 Field installation You connect the sensor directly to the transmitter COM253 WX WS by means of the special measuring cable with the SXP connector å 14 4 1 2 Panel mounting Remove the SXP connector transmitter side from the cable Refer to the following table for the cable assignment and the assigned terminals for Liquisys M COM223 WX WS Please note that the cable assignment changes ...

Page 15: ... transmitter OMK 4 Transmitter connection compartment Instrument status and specifications Remarks Are the sensor assembly junction box or cable damaged Visual inspection Electrical connection Remarks Does the supply voltage of the transmitter match the specifications on the nameplate 110 230 V AC 24 V AC DC Are the installed cables strain relieved and not twisted Is the cable type route completel...

Page 16: ...s emitter and detector Fluorescence cap Protection guard Note Alternatively to the protection guard you can use a spray head COR3 optional see Accessories for use in immersed operation with cleaning function a0004151 Fig 17 Sensor design 1 Sensor cable 2 Sensor shaft 3 O ring 4 Protection guard 5 Threaded connection 6 Detector 7 Emitter diode 8 Fluorescence cap 1 2 3 4 5 6 7 8 ...

Page 17: ...ls are shorter and less intense Measurement result The sensor returns a signal that is in proportion to the oxygen concentration in the medium The fluid temperature and air pressure are already calculated in the sensor 5 2 2 Fluorescence cap The oxygen dissolved in the medium is diffused into the fluorescence cap Suitable flow is not necessarily mandatory but it does improve the speed at which the...

Page 18: ...e intervals with the following method 2 Check the sensor one month after its being put into operation by taking it out of the fluid drying it and then measuring the oxygen saturation index at air after 10 minutes Decide using the results a If the measured value is not at 100 2 SAT you have to calibrate the sensor b Otherwise double the length of time to the next inspection 3 Proceed as per Point 1...

Page 19: ...8 73 32 90 7 30 2 36 13 83 13 55 10 51 23 73 8 57 33 91 7 18 3 38 13 45 14 57 10 28 24 75 8 41 34 93 7 06 4 39 13 09 15 59 10 06 25 77 8 25 35 95 6 94 5 41 12 75 16 61 9 85 26 79 8 11 36 97 6 83 6 43 12 42 17 63 9 64 27 81 7 96 37 99 6 72 7 45 12 11 18 64 9 45 28 82 7 82 38 100 6 61 8 46 11 81 19 66 9 26 29 84 7 69 39 102 6 51 9 48 11 53 20 68 9 08 30 86 7 55 40 104 6 41 10 50 11 25 Altitude m ft ...

Page 20: ...ith automatic cleaning check the correct water connection at the assembly rinse connection Warning Danger of medium leaking off Before applying compressed air to an assembly with cleaning facility make sure the connections are correctly fitted Otherwise the assembly may not be insert into the process 6 2 Calibration The sensor is calibrated at the factory A new calibration is only needed in specia...

Page 21: ...eaning we recommend equipping the measuring point with a fully automatic cleaning system e g Chemoclean see Accessories 7 1 Cleaning the sensor The measurement can be corrupted by sensor fouling or malfunction e g Buildup on the fluorescence cap causes longer response times and a reduced slope under certain circumstances To ensure reliable measurement the sensor must be cleaned at regular interval...

Page 22: ...g the sealing ring Replacing the sealing ring is only necessary when it is visibly damaged For replacement use only original sealing rings 7 2 2 Changing the fluorescence cap Removing the old fluorescence cap 1 Remove the sensor from the medium 2 Unscrew the protection guard 3 Clean the outside of the sensor 4 Unscrew the fluorescence cap 5 Clean and dry the optical surface if necessary Installing...

Page 23: ... pipe lines PVC Technical Information TI111C 07 en Retractable assembly Cleanfit COA451 Manual stainless steel retractable assembly with ball valve shutoff for oxygen sensors Ordering acc to product structure Technical Information TI368C 07 en Universal suspended assembly holder CYH101 for pH redox oxygen conductivity assemblies and oxygen and turbidity sensors Ordering acc to product structure Te...

Page 24: ...nitoring free configuration of alarm contact field or panel mounting HART or PROFIBUS possible Ordering acc to product structure see Technical Information TI199C 07 en Chemoclean Injector CYR10 and program sequencer CYR20 Technical Information TI046C 07 en Spray head COR3 for sensor cleaning in immersion operation Order No COR3 0 Calibration vessel for COS61 Order No 51518599 ...

Page 25: ...splay clearly too low Check sensor if necessary send sensor in for repair Displayed value too low With a TOP 68 connection Humidity or dirt in plug Clean connection cleaning alcohol and dry it Sensor calibrated Recalibrate Medium flow available Create flow Displayed temperature clearly too high Check sensor if necessary send sensor in for repair Buildup on the fluorescence cap Clean sensor Fluores...

Page 26: ...se use the original packaging if possible Please enclose the completed Declaration of contamination copy the second last page of these Operating Instructions with the packaging and the transportation documents No repair without completed Declaration of contamination 9 5 Disposal The device contains electronic components and must therefore be disposed of in accordance with regulations on the dispos...

Page 27: ...0 6 psi 10 2 Environment 10 2 1 Storage temperature 20 70 C 0 160 F at 95 relative air humidity not condensing 10 2 2 Ambient temperature range 20 60 C 0 140 F 10 2 3 Degree of protection IP 68 10 3 Process 10 3 1 Process pressure Max permitted overpressure 10 bar 150 psi 10 3 2 Process temperature 5 50 C 20 120 F 10 4 Performance characteristics 10 4 1 Response time t90 60 s 10 4 2 Maximum measur...

Page 28: ...g 0 66 lbs 10 5 2 Materials 10 5 3 Process connection G1 10 5 4 Sensor cable Shielded 7 core fixed cable or double shielded coaxial cable with 4 pilot wires for TOP68 connection 10 5 5 Cable connection to transmitter SXP connector field device Terminal connection panel mounted instrument 10 5 6 Maximum cable length Max 100 m 330 ft including cable extension 10 5 7 Temperature compensation Internal...

Page 29: ... Troubleshooting instructions 25 F Fault 25 Floating body 12 Flow assembly 12 23 Fluorescence cap 17 22 28 I Identification 6 Immersion assembly 10 23 Immersion tube 11 Incoming acceptance 7 Installation 4 7 Installation instructions 7 8 Examples 10 Flow operation 12 Immersion operation 10 Installing the measuring point 9 Mounting location 8 Orientation 8 Premounting 9 Retractable assembly 13 Inte...

Page 30: ...r Calibration 17 Cleaning 21 Design 16 Measuring principle 17 Monitoring 27 Sensor cable 28 Sensor cap 28 Sensor check 25 Slope 27 Spare parts 26 Storage 7 Storage temperature 27 Symbols 5 Cross references 5 T Technical data 27 Temperature compensation 28 Transmitter 24 Transport 7 Types of calibration 18 U Universal assembly holder 10 11 Use 4 W Weight 28 Weights 28 Wiring 14 Z Zero current 27 Ze...

Page 31: ...aktiv Please tick should one of the above be applicable include security sheet and if necessary special handling instructions Zutreffendes ankreuzen trifft einer der Warnhinweise zu Sicherheitsdatenblatt und ggf spezielle Handhabungsvorschriften beilegen Reason for return Grund zur Rücksendung _____________________________________________________________ ___________________________________________...

Page 32: ...www endress com worldwide BA387C 07 en 06 05 Printed in Germany FM SGML 6 0 DT 51518696 ...

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