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Operating Instructions

Memosens COS81E

Hygienic, optical sensor with Memosens 2.0 technology

for the measurement of oxygen

BA02066C/07/EN/01.20

71496967

2020-09-02

Summary of Contents for Memosens COS81E

Page 1: ...Products Solutions Services Operating Instructions Memosens COS81E Hygienic optical sensor with Memosens 2 0 technology for the measurement of oxygen BA02066C 07 EN 01 20 71496967 2020 09 02 ...

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Page 3: ...2 5 Installation 13 5 1 Installation conditions 13 5 2 Mounting the sensor 14 5 3 Installation examples 16 5 4 Post installation check 19 6 Electrical connection 20 6 1 Connecting the sensor 20 6 2 Ensuring the degree of protection 20 6 3 Post connection check 20 7 Commissioning 21 7 1 Function check 21 7 2 Calibration and adjustment 21 8 Diagnostics and troubleshooting 25 8 1 General troubleshoot...

Page 4: ...rrective action This symbol alerts you to a dangerous situation Failure to avoid this situation can result in minor or more serious injuries NOTICE Cause situation If necessary Consequences of non compliance if applicable Action note This symbol alerts you to situations which may result in damage to property 1 2 Symbols used Symbol Meaning Additional information tips Permitted or recommended Not p...

Page 5: ... instructions for electrical apparatus in the hazardous area is also included with sensors for use in the hazardous area Please follow instructions on use in the hazardous area carefully Safety instructions for electrical apparatus in hazardous areas Memosens 2 0 optical oxygen for ATEX and IECEx approval XA02238C ...

Page 6: ...o the safety of people and of the entire measuring system and is therefore not permitted The manufacturer is not liable for damage caused by improper or non designated use 2 3 Workplace safety As the user you are responsible for complying with the following safety conditions Installation guidelines Local standards and regulations Regulations for explosion protection Electromagnetic compatibility T...

Page 7: ...uct safety 2 5 1 State of the art technology The product is designed to meet state of the art safety requirements has been tested and left the factory in a condition in which it is safe to operate The relevant regulations and international standards have been observed ...

Page 8: ...ignals are less intense Measurement result The sensor calculates the measurement result on the basis of the signal intensity and decay time using the Stern Volmer equation The air pressure can be either set statically or entered via an additional sensor The medium temperature is automatically recorded in the sensor Both values are taken into consideration in the calculation of the oxygen concentra...

Page 9: ...s consumed during measurement However flow improves the speed at which the measuring system reacts and ensures a more representative measured value compared to a measurement in a static medium The spot is permeable for dissolved gases only Other substances dissolved in the liquid phase such as ionic substances will not penetrate through the membrane Therefore medium conductivity has no impact on t...

Page 10: ...culate the measured value Call up the sensor data via the corresponding DIAG menu Digital sensors can store measuring system data in the sensor These include the following Manufacturer data Serial number Order code Date of manufacture Calibration data Calibration date Calibration values Number of calibrations Serial number of the transmitter used to perform the last calibration or adjustment Opera...

Page 11: ...e original packaging offers the best protection Make sure to comply with the permitted ambient conditions If you have any questions please contact your supplier or your local Sales Center 4 2 Product identification 4 2 1 Nameplate The nameplate provides you with the following information on your device Manufacturer identification Order code Extended order code Serial number Safety information and ...

Page 12: ... version as ordered 1 x Brief Operating Instructions Safety instructions for the hazardous area for sensors with Ex approval Optional certificates that have been ordered 4 4 Certificates and approvals 4 4 1 mark The product meets the requirements of the harmonized European standards As such it complies with the legal specifications of the EU directives The manufacturer confirms successful testing ...

Page 13: ...47 A0043883 3 Dimensions in mm inch 5 1 2 Orientation The sensor s spot cap can have either a c shaped or u shaped design 1 2 A0034733 4 Design of spot cap 1 u shaped 2 c shaped COS81E C c shaped 135 225 45 315 0 180 A0042948 5 Installation angle Memosens COS81E C c shaped spot cap The sensor can be installed at any installation angle 0 to 360 Recommended installation angle ...

Page 14: ...other than those mentioned are not permitted In order to avoid buildup and condensation on the spot do not install the COS81E U sensor upside down Follow the instructions for installing sensors in the Operating Instructions for the assembly used 5 1 3 Mounting location 1 Choose a mounting location that is easy to access 2 Ensure that upright posts and assemblies are fully secured and vibration fre...

Page 15: ...ication LWARNING Electrical voltage In the event of a fault non grounded metallic assemblies may be live and as such are not safe to touch When using metallic assemblies and installation equipment national grounding provisions must be observed For complete installation of a measuring point proceed as follows 1 Install the retractable assembly or a flow assembly if used into the process 2 Connect t...

Page 16: ...d 5 3 Installation examples 5 3 1 Permanent installation Unifit CPA842 The permanent installation assembly CPA842 enables easy adaptation of a sensor to nearly any process connections from Ingold nozzles to Varivent or Tri Clamp connections This kind of installation is very well suited for tanks and larger pipes This enables a defined immersion depth of the sensor into the medium in the simplest w...

Page 17: ... 4 A0014081 9 Flow assembly 1 Installed sensor Memosens COS81E 2 Drain 3 Wall mount clamp D29 4 Inflow 5 3 4 Retractable assembly Cleanfit CPA875 or Cleanfit CPA450 The assembly is designed for installation on tanks and pipes Suitable nozzles must be available for this Install the assembly in a place with uniform flow conditions The minimum pipe diameter is DN 80 ...

Page 18: ...COS81E C with c shaped spot cap A A 5 3 4 1 2 3 4 2 A0042965 11 Suitable and unsuitable installation positions for Memosens COS81E with c shaped spot cap and retractable assembly 1 Ascending pipe best position 2 Horizontal pipe sensor top down impermissible due to air cushion or foam bubble forming 3 Horizontal pipe lateral installation with permissible installation angle acc to sensor version 4 U...

Page 19: ...t installation check 1 Are the sensor and cable undamaged 2 Is the orientation correct 3 Is the sensor installed in an assembly and is not suspended from the cable 4 Avoid the penetration of moisture by fitting the protection cap on the immersion assembly ...

Page 20: ...delivered Exercise care when carrying out the work Otherwise the individual types of protection Ingress Protection IP electrical safety EMC interference immunity agreed for this product can no longer be guaranteed due for example to covers being left off or cable ends that are loose or insufficiently secured 6 3 Post connection check Device condition and specifications Action Are the sensor assemb...

Page 21: ... a calibration adjustment is necessary The oxygen measuring point is then ready to measure Following commissioning the sensor must be serviced at regular intervals as only then can reliable measurement be guaranteed Operating Instructions for the transmitter used such as BA01245C if using the Liquiline CM44x or CM44xR 7 2 Calibration and adjustment The sensor is calibrated and adjusted in the fact...

Page 22: ...zero point gel COY8 can be used for this purpose The oxygen depleting gel COY8 creates an oxygen free medium for zero point calibration Prior to sensor zero point calibration check the following Is the sensor signal stable Has the adjustment time of 30 min 40 min for the zero point gel COY8 elapsed Is the value displayed plausible 1 If the sensor signal is stable Calibrate the zero point 2 If nece...

Page 23: ... spot cap 7 2 4 Calculation example for the calibration value As a check you can calculate the expected calibration value transmitter display as shown in the following example salinity is 0 1 Determine the following Ambient temperature for the sensor air temperature in the case of the Air 100 rh or Air variable calibration methods water temperature in the case of the H2O air saturated calibration ...

Page 24: ... 1400 4600 0 849 1900 6230 0 801 400 1320 0 954 950 3120 0 895 1450 4760 0 844 1950 6400 0 796 450 1480 0 949 1000 3300 0 890 1500 4920 0 839 2000 6560 0 792 500 1650 0 943 3 Calculate factor L Relative air pressure at calibration L 1013 hPa 4 Determine the M factor M 1 02 for Air 100 rh calibration method M 1 00 for H2O air saturated calibration method 5 Calculate calibration value C C S K L M Ex...

Page 25: ...learly too low Check sensor if necessary send sensor in for repair Has salinity been taken into account Enter salinity value on transmitter Displayed value too low Is sensor calibrated adjusted Measured value in air not 100 2 SAT Recalibrate readjust When calibrating enter the current air pressure at the transmitter Displayed temperature clearly too high Check sensor if necessary send sensor in fo...

Page 26: ... the sensor from the medium and dry it carefully 2 Visually check the spot cap There should be no green coloration or air bubbles visible on the exterior Otherwise replace the spot cap 3 After 10 minutes measure the oxygen saturation index in air Decide using the results a Measured value not 100 2 SAT Service the sensor b Measured value 100 2 SAT Double the length of time to the next inspection 4 ...

Page 27: ...fter cleaning Rinse with copious amounts of clean water 9 2 2 Cleaning sensor optics The optics need to be cleaned only if there is visible buildup on the optical waveguide or boundary area A0043084 A0043085 A0043086 1 Unscrew the spot cap from the sensor head 2 Carefully clean the optical surface with a soft cloth until the buildup is fully removed If necessary wet the cloth with drinking water o...

Page 28: ...he swift safe and professional return of the device Refer to the website www endress com support return material for information on the procedure and conditions for returning devices The product must be returned if repairs or a factory calibration are required or if the wrong product was ordered or delivered To ensure safe professional and swift product returns please contact your local Sales Cent...

Page 29: ... conditions that go beyond the resistance range of the materials may shorten the operating life of the materials and make maintenance necessary The sensor s spot cap can have either a c shaped or u shaped design 1 2 A0034733 14 Design of spot cap 1 u shaped 2 c shaped 10 3 1 Replacing sealing rings It is compulsory to replace the sealing ring if it is visibly damaged Only use original sealing ring...

Page 30: ...the shaft 3 A0034715 Push the mounting tool from below onto the shaft until it sits over the thread 4 A0034717 Slide the O ring over the mounting tool into the position above the thread 5 A0043012 Remove the mounting tool 6 A0043015 Clean the sensor optics carefully using the cloth provided ...

Page 31: ...n of the spot cap 2 A0043014 Fit the new O ring over the spot cap and push it as far as the process connection 10 3 2 Replacing the spot cap The spot cap must be replaced if it is visibly damaged or the sensor measurement quality is not sufficient Only use original spot caps 1 A0043010 Unscrew the old spot cap and remove 2 A0043015 Clean the sensor optics carefully using the cloth provided ...

Page 32: ...or or check the measuring function 21 10 4 Disposal The device contains electronic components The product must be disposed of as electronic waste Observe the local regulations 10 5 Checking the measurement function 1 Remove the sensor from the medium 2 Clean and dry the spot cap 3 After about 10 minutes measure the oxygen saturation index in air without recalibration The measured value should be a...

Page 33: ...om cpa240 Technical Information TI00179C Unifit CPA842 Installation assembly for food biotechnology and pharmaceutics With EHEDG and 3A certificate Product Configurator on the product page www endress com cpa842 Technical Information TI00306C Cleanfit CPA450 Manual retractable assembly for installing sensors with a diameter of 12 mm and a length of 120 mm in tanks and pipes Product Configurator on...

Page 34: ...Memosens technology Product Configurator on the product page www endress com cyk20 11 1 3 Zero point gel COY8 Zero point gel for oxygen and disinfection sensors Oxygen free and chlorine free gel for the verification zero point calibration and adjustment of oxygen and disinfection measuring points Product Configurator on the product page www endress com coy8 Technical Information TI01244C 11 1 4 Tr...

Page 35: ... industries Product Configurator on the product page www endress com CM72 Technical Information TI01409C Memosens analog converter CYM17 Converter for Memosens sensors Enables the simple use of digital Memosens sensors in fermentation applications in the laboratory Product Configurator on the product page www endress com cym17 Operating Instructions BA01833C Memobase Plus CYZ71D PC software to sup...

Page 36: ...acy is not achieved at values above the maximum measuring range 12 2 Performance characteristics Response time From air to nitrogen at reference operating conditions t90 10 s t98 20 s Reference operating conditions Reference temperature 25 C 77 F Reference pressure 1013 hPa 15 psi Maximum measured error 1 At 25 C 77 F Measured value mg l Maximum measured error mg l Measured value hPa Maximum measu...

Page 37: ...s pressure range 0 02 to 13 bar 0 to 190 psi abs Temperature pressure ratings p abs T bar C 6 13 140 110 psi 188 87 T F 230 284 10 14 0 32 A0032287 EN Chemical resistance NOTICE Halogen containing solvents ketones and toluene Halogen containing solvents dichloromethane chloroform ketones e g acetone pentanone and toluene have a cross sensitive effect and result in decreased measured values or at w...

Page 38: ...ow assembly CYA21 for sensors with Ø 12 mm accessories 28 1 10 Ø6 0 24 39 1 54 160 6 30 30 1 18 Ø6 0 24 Ø 29 x 1 5 1 14 x 0 06 A0043025 17 Dimensions in mm inch Weight Depending on the design length Example 0 1 kg 0 20 lbs for version with 120 mm length Materials Parts in contact with medium Sensor shaft Stainless steel 1 4435 AISI 316L Process seal FKM USP 87 88 Class VI and FDA Process seal for ...

Page 39: ... USP 87 88 Class VI and FDA Spot cap Stainless steel 1 4435 AISI 316L or titanium or Hastelloy Spot layer Silicone USP 87 88 Class VI and FDA Process connection Pg 13 5 Torque max 3 Nm Surface roughness Ra 0 38 µm Temperature sensor Pt1000 Class A according to DIN IEC 60751 ...

Page 40: ...www addresses endress com 71496967 71496967 ...

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