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Technical data

Oxymax COS22D

Hauser

10.4.3 Temperature-pressure chart

10.4.4 Minimum flow

COS22D-*1 (standard sensor): 0.02 m/s (0.07 ft/s)
COS22D-*3 (trace sensor): 0.1 m/s (0.33 ft/s)

10.4.5 Chemical resistance

Parts in contact with medium are chemically resistent against:
• Dissolved acids and bases
• Hot water and steam

max. 135

C (275

• CO

up to 100 %, with trace sensor COS22D-*3 only

NOTICE

Hydrogen sulfide and ammonia reduce the durability of the sensor

►

Do not use the sensor in applications, where the sensor is exposed to hydrogen sulfide and ammonia
vapors.

10.4.6 Cross-sensitivity

Molecular hydrogen causes at least lesser findings and can cause total sensor failure.

10.4.7 CIP compatibility

Versions COS22D-****2

a0015193

Fig. 13: Temperature-pressure diagram

Содержание Oxymax COS22D

Страница 1: ...BA00447C 07 EN 02 12 71153853 Operating Instructions Oxymax COS22D 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: ...s 15 4 2 Connection to the transmitter 17 4 3 Post connection check 17 5 Function 18 5 1 Measuring principle 18 5 2 Calibration 20 6 Commissioning 23 6 1 Function check 23 6 2 Polarization 23 6 3 Cali...

Страница 4: ...xygen content in carbonated fluids of the beverage industry Trace measurement in industrial applications such as inertizations Monitoring the residual oxygen content in boiler feedwater Monitoring mea...

Страница 5: ...ons are not damaged Do not operate damaged products and secure them against unintentional commissioning Mark the damaged product as being defective Measuring point faults may only be rectified by auth...

Страница 6: ...llowing items are included in the delivery Oxygen sensor with tap water filled cap for membrane protection Electrolyte 1 bottle 10 ml 0 34 fl oz Disassembly tool for membrane body Brief Operating Inst...

Страница 7: ...Oxymax COS22D Identification Endress Hauser 7 a0014925 Fig 1 EC declaration of conformity...

Страница 8: ...rtificates Note for Ex versions For use of these sensors in FDA applications an additional FDA compliant sealing e g CPA442 is required in front of the process sealing to separate the process from the...

Страница 9: ...ransport 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...

Страница 10: ...x COS22D A transmitter e g Liquiline CM42 An measuring cable CYK10 Optional an assembly e g fixed installation assembly CPA442 flow assembly CPA240 or retractable assembly CPA475 a0001398 Fig 3 Exampl...

Страница 11: ...nded from the cable Screw the sensor into the assembly so that the cable is not twisted Mounting or dismounting the sensor hold the sensor body only turn the threaded plug in head while screwing the s...

Страница 12: ...process connection Pg 13 5 It is very suitable for use in pipes or at hose connections During trace measurement in particular ensure the assembly is completely vented to avoid measuring errors a000572...

Страница 13: ...ies offers 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 a...

Страница 14: ...ipe 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 Do...

Страница 15: ...he certified oxygen sensor Oxymax H COS21D 12 1COS22D BA in combination with the measuring cable CYK10 G 1 may only be connected to certified intrinsically safe digital sensor circuits of the transmit...

Страница 16: ...Wiring Oxymax COS22D 16 Endress Hauser a0010056 Fig 8 Connection in hazardous locations...

Страница 17: ...120 C 5 70 C Reference temperature Tref 25 C a0003350 Fig 9 Special measuring cable CYK10 Instrument status and specifications Remarks Are the sensor assembly junction box or cable damaged Visual ins...

Страница 18: ...ctron acceptance at the anode Under constant conditions this flow is proportional to the oxygen content of the medium This current is converted in the transmitter and indicated on the display as an ox...

Страница 19: ...zation current is indicated on the display of the transmitter The current starts high but then drops over time The sensor can only be calibrated when the display is stable Reference value for practica...

Страница 20: ...example In doing so make sure the measured value has settled correctly 20 to 30 minutes to avoid incorrect measurements in the trace range at a later stage The available types of calibration depend o...

Страница 21: ...undeterminable use 1013 hPa 407 inH2O for an approximate calculation 2 Define the saturation value S acc 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...

Страница 22: ...titude m ft K Altitude m ft K 0 1 000 550 1800 0 938 1050 3450 0 885 1550 5090 0 834 50 160 0 994 600 1980 0 932 1100 3610 0 879 1600 5250 0 830 100 330 0 988 650 2130 0 927 1150 3770 0 874 1650 5410...

Страница 23: ...otect the sensor from strong sunlight Make sure you comply with the instructions for commissioning and calibration in the Operating Instructions of the transmitter The sensor was tested in the factory...

Страница 24: ...ld be 1 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 re...

Страница 25: ...t conditions 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 I...

Страница 26: ...7 4 Wear parts and consumables Parts of the sensor will suffer wear and tear during operation Suitable action can restore normal operating functionality This action includes Type of soiling Cleaning...

Страница 27: ...H2S NH3 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 COS22D 1 standard sensor 1...

Страница 28: ...e the membrane body To do so use the supplied disassembly tool for the membrane body 5 Decide a Do you want to replace the membrane body and not use it again Dispose of the electrolyte and the old mem...

Страница 29: ...t sleeve 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...

Страница 30: ...requirements Ordering per product structure Online configurator www products endress com cpa240 Technical Information TI00179C 07 EN Cleanfit CPA475 Retractable assembly for installation in tanks and...

Страница 31: ...Polarization 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 stretche...

Страница 32: ...on the internet site www services endress com return material 9 4 Disposal The device contains electronic components and must therefore be disposed of in accordance with regulations on the disposal o...

Страница 33: ...standard sensor 40 to 100 nA COS22D 3 trace sensor 210 to 451 nA 10 2 4 Zero current COS22D 1 standard sensor 0 1 of the signal current at air COS22D 3 trace sensor 0 03 of the signal current at air M...

Страница 34: ...hen operating under reduced oxygen conditions 4 Vol O2 10 2 9 Influence of medium pressure Pressure compensation not necessary 10 2 10 Polarization time COS22D 1 standard sensor 30 min for 98 of the s...

Страница 35: ...F 10 3 Environment 10 3 1 Storage temperature 5 to 50 C 20 to 120 F at 95 relative air humidity not condensing NOTICE Danger of drying out Only store the sensor with the protection cap filled with ta...

Страница 36: ...lved acids and bases Hot water and steam max 135 C 275 F CO2 up to 100 with trace sensor COS22D 3 only NOTICE Hydrogen sulfide and ammonia reduce the durability of the sensor Do not use the sensor in...

Страница 37: ...COS22D 1 standard sensor alkalescent electrolyte COS22D 3 trace sensor neutral electrolyte In contact with medium Sensor shaft depending on version Stainless steel 1 4435 AISI 316L Titane Alloy C22 E...

Страница 38: ...37 Environment 35 Errors 31 Ex approval 6 F FDA conformity 8 Flow operation 12 I Immersion operation 11 Incoming acceptance 9 Ingress protection 35 Input 33 Installation 5 9 10 Angle of 9 Check 14 Exa...

Страница 39: ...ing ring 27 Replacing the sealing ring 27 Response time 33 Retractable assembly 14 Return 32 S Scope of delivery 6 Sensor Cleaning 26 Measuring principle 18 Sensor design 18 Spare parts 32 Storage 9 S...

Страница 40: ...BA00447C 07 EN 02 12 FM9...

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