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BA446C/07/EN/01.11
71098071

Operating Instructions

Oxymax COS22

Dissolved oxygen sensor

Содержание Oxymax COS22 Series

Страница 1: ...BA446C 07 EN 01 11 71098071 Operating Instructions Oxymax COS22 Dissolved oxygen sensor...

Страница 2: ...WARNING Cause consequences Consequences if safety message is not heeded Corrective action This symbol alerts you to a dangerous situation Failure to avoid the situation can result in a fatal or serio...

Страница 3: ...ransmitter 13 4 2 Post connection check 13 5 Function 14 5 1 Measuring principle 14 5 2 Calibration 15 6 Commissioning 18 6 1 Function check 18 6 2 Polarization 18 6 3 Calibration 19 7 Maintenance 20...

Страница 4: ...er use than the one described here compromises the safety of persons and the entire measuring system and is not permitted The manufacturer is not liable for damage caused by improper or non designated...

Страница 5: ...Local prevailing standards and regulations 1 4 Return If the sensor has to be repaired please return it cleaned to the sales center responsible Please use the original packaging if possible Before re...

Страница 6: ...er filled cap for membrane protection Electrolyte 1 bottle 10 ml 0 34 fl oz Brief Operating Instructions Operating Instructions on CD If you have any questions please contact your supplier or your loc...

Страница 7: ...ck 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 su...

Страница 8: ...on instructions 3 3 1 Measuring system A complete measuring system comprises A digital oxygen sensor Oxymax COS22 A transmitter e g Liquisys COM223 253F An appropriate measuring cable e g COK21 Option...

Страница 9: ...mbly with cleaning function 3 Install and connect the oxygen sensor NOTICE Installation errors Cable breakage loss of the sensor unintended unscrewing of the membrane cap Do not install the sensor sus...

Страница 10: ...nner 3 4 2 Flow assembly CPA240 The CPA240 flow assembly offers up to three installation slots for sensors with a shaft diameter of 12 mm 0 47 a shaft length of 120 mm 4 72 and a process connection Pg...

Страница 11: ...ers space for a 12 mm sensor with a length of 120 mm The assembly has a low sampling volume and with the 6 mm connections it is best suited for residual oxygen measurement in water treatments and boil...

Страница 12: ...eral installation with permissible installation angle acc to sensor version 5 Down pipe impermissible NOTICE Incorrect measurements Sensor not in the medium all the way buildup overhead installation D...

Страница 13: ...tion check a0005583 en Fig 7 Special measuring cable COK21 Instrument status and specifications Remarks Are the sensor assembly junction box or cable damaged Visual inspection Electrical connection Re...

Страница 14: ...5 1 2 Sensor design 5 1 3 Polarization When the sensor is connected to the transmitter a fixed voltage is applied between the cathode and anode The polarization current this creates can be identified...

Страница 15: ...n most applications single point calibration suffices in the presence of oxygen calibration of measured value at air The additional calibration of the zero point two point calibration improves the pre...

Страница 16: ...to the first table the factor K acc to the second table T C F S mg l ppm T C F S mg l ppm T C F S mg l ppm T C F S mg l ppm 0 32 14 64 11 52 10 99 21 70 8 90 31 88 7 42 1 34 14 23 12 54 10 75 22 72 8...

Страница 17: ...pressure as the measured value Thus the formula for calculation is C S Labs 200 660 0 977 750 2460 0 916 1250 4100 0 864 1750 5740 0 815 250 820 0 971 800 2620 0 911 1300 4270 0 859 1800 5910 0 810 3...

Страница 18: ...id direct sunlight on the sensor Make sure you comply with the instructions for commissioning in the Operating Instructions of the transmitter The sensor has been tested at the factory for proper func...

Страница 19: ...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...

Страница 20: ...tions e g power plant long cycles 1 2 year Greatly varying conditions e g daily CIP cleaning short cycles 1 month or shorter The following method helps you determine the necessary intervals 1 Inspect...

Страница 21: ...ter 7 4 Wear parts and consumables Parts of the sensor are subject to wear during operation By taking suitable measures you can restore the normal operating function Type of soiling Cleaning Salt depo...

Страница 22: ...3 or high concentrations of CO2 The theoretical operating time of an electrolyte filling for use in air saturated potable water pO2 210 mbar at 25 C 77 F is as follows COS22 1 standard sensor 1 5 year...

Страница 23: ...d cathode 4 Remove the membrane body To do so use a suitable tool or carefully press it out of the shaft sleeve from the outside 5 Decide a Do you want to replace the membrane body and not use it agai...

Страница 24: ...e 2 If the membrane body remains on the glass body and not in the shaft sleeve remove it from the glass body 3 Flush the glass body along with the anode and cathode using distilled water 4 Pull the us...

Страница 25: ...9C 07 en Cleanfit CPA475 Retractable assembly for installation in tanks and pipework under sterile conditions Technical Information TI240C 07 en Unifit CPA442 Installation assembly for food biotechnol...

Страница 26: ...zation complete Wait until polarization time ends Sensor calibrated Recalibrate Temperature display clearly too low Check sensor if necessary send sensor in for repair Membrane visibly stretched Repla...

Страница 27: ...e transportation documents No repair without completed declaration 9 4 Disposal The device contains electronic components and must therefore be disposed of in accordance with regulations on the dispos...

Страница 28: ...ditions 10 2 3 Signal current in air COS22 1 standard sensor 40 to 100 nA COS22 3 trace sensor 210 to 451 nA 10 2 4 Zero current COS22 1 standard sensor 0 1 of the current at air COS22 3 trace sensor...

Страница 29: ...sary 10 2 10Polarization time COS22 1 standard sensor 30 min for 98 of the signal value 2 h for 100 COS22 3 trace sensor 3 h for 98 of the signal value 12 h for 100 10 2 11Oxygen depletion intrinsic c...

Страница 30: ...Ingress protection IP 68 10 m 33 ft water column at 25 C 77 F during 45 days 1 mol l KCl 10 4 Process 10 4 1 Process temperature 5 to 135 C 23 to 175 F 10 4 2 Process pressure ambient pressure to 12...

Страница 31: ...rs 10 4 6 Cross sensitivity Molecular hydrogen causes at least lesser findings and can cause total sensor failure 10 4 7 CIP compatibility Versions COS22 2 10 5 Mechanical construction 10 5 1 Weight D...

Страница 32: ...ical data 32 Endress Hauser 10 5 4 Surface roughness Ra 0 38 m 10 5 5 Temperature sensor NTC 22 k 10 5 6 Electrolyte COS22 1 standard sensor alkalescent electrolyte COS22 3 trace sensor neutral electr...

Страница 33: ...ation 10 I Immersion operation 10 Incoming acceptance 7 Ingress protection 30 Input 28 Installation 4 7 8 Angle of 7 Check 12 Examples 10 Flow operation 10 Immersion operation 10 Location 8 Measuring...

Страница 34: ...28 Retractable assembly 12 Return 5 27 S Scope of delivery 6 Sensor Cleaning 21 Measuring principle 14 Sensor design 14 Spare parts 27 Storage 7 Storage temperature 29 Surface roughness 32 T Technical...

Страница 35: ...ning Returned part cleaned with explosive oxidising dangerous for the environment biological risk radioactive Please tick should one of the above be applicable include safety data sheet and if necessa...

Страница 36: ...BA446C 07 EN 01 11 FM9 71098071...

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