Oxymax COS22/22D. Technical Information

Transcription

1 Technical Information Oxymax COS22/22D Digital or analog sensor for measuring oxygen Sensor with long-term stability for frequent sterilization and autoclaving Application Pharma and biotechnology Process control in enzyme production Control of culture growth Food industry Beverages Chemical industry Water treatment Boiler feed water WFI (water for injection) Inertizations Residual oxygen measurement in processes Your benefits Sensor version suitable for the pharmaceutical industry: Stainless steel (AISI 316L) Sterilizable and autoclavable Application-specific versions: Sensor for standard applications, e.g. for fermenter monitoring Trace sensor, e.g. for power plant applications and as CO 2 compatible sensor for the beverage industry Versatile usage: Standard process connection Pg 13.5 Installation in standard ph assemblies possible Short response time: t 98 < 60 s Integrated temperature sensor Further benefits offered by Memosens technology Maximum process safety through contactless inductive signal transmission Data safety through digital data transmission Easy handling thanks to storage of sensor-specific data in the sensor Predictive maintenance possible thanks to registration of sensor load data in the sensor TI00446C/07/EN/

2 Function and system design Measuring principle Application in gaseous media Memosens technology The oxygen molecules diffused through the membrane are reduced to hydroxide ions (OH-) at the cathode. Silver is oxidized to silver ions (Ag+) at the anode (this forms a silver halogenide layer). A current flows due to the electron donation at the cathode and the electron 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 oxygen concentration in mg/l, μg/l, ppm, ppb or Vol%, as a saturation index in % SAT or as an oxygen partial pressure in hpa. The trace sensor version can be used in gaseous media, e.g. with inertizations and quality monitoring of traces. Process monitorings in gaseous media can be realized with the standard sensor version. The measured value will be displayed in Vol% or as an oxygen partial pressure in hpa. Sensors in dry media show an ingreased electrolyte consumption. This results in shorter maintenance intervals. Maximum process safety The inductive and non-contacting measured value transmission of Memosens guarantees maximum process safety and offers the following benefits: All problems caused by moisture are eliminated. The plug-in connection is free from corrosion. Measured value distortion from moisture is not possible. Correct transfer of minimum measured values, e.g. with amperometric sensors. The plug-in system can even be connected under water. The transmitter is galvanically decoupled from the medium. The result: No more need to ask about "symmetrically high-impedance" or "unsymmetrical" (for ph/orp measurement) or an impedance converter. EMC safety is guaranteed by screening measures for the digital measured value transmission. Application in explosion-hazardous areas is unproblematic; the integrated electronics are intrinsically safe. Data safety through digital data transfer The Memosens technology digitalizes the measured values in the sensor and transfers them to the transmitter contactlessly and free from interference potential. The result: An automatic error message is generated if the sensor fails or the connection between sensor and transmitter is interrupted. The availability of the measuring point is dramatically increased by immediate error detection. Easy handling Sensors with Memosens technology have integrated electronics that allow for saving calibration data and further information such as total hours of operation and operating hours under extreme measuring conditions. When the sensor is mounted, the calibration data are automatically transferred to the transmitter and used to calculate the current measured value. Storing the calibration data in the sensor allows for calibration away from the measuring point. The result: Sensors can be calibrated under optimum external conditions in the measuring lab. Wind and weather do neither affect the calibration quality nor the operator. The measuring point availability is dramatically increased by the quick and easy replacement of precalibrated sensors. The transmitter does not need to be installed close to the measuring point but can be placed in the control room. Maintenance intervals can be defined based on all stored sensor load and calibration data and predictive maintenance is possible. The sensor history can be documented on external data carriers and evaluation programs at any time. Thus, the current application of the sensors can be made to depend on their previous history. 2 Endress+Hauser

3 Measuring system A complete measuring system comprises: A digital oxygen sensor Oxymax COS22 or Oxymax COS22D A transmitter, see table An appropriate measuring cable, see table Optional: an assembly, e.g. fixed installation assembly CPA442, flow assembly CPA240 or retractable assembly CPA475 COS22D- Standard, Traces COS22- Standard COS22- Traces Liquiline CM44x Cable: CYK Liquiline CM42 Cable: CYK Liquisys COM2x3F - Cable: COK21 - Third party XMTR Memosens partners possible, cable: COK21 possible, cable: COK Example of a measuring system with COS22D-*1 1 Liquiline M CM42 2 Measuring cable CYK10 3 Digital oxygen sensor Oxymax COS22D-*1 4 Fixed installation assembly CPA442 2 a Endress+Hauser 3

4 CAL REL REL1 REL2 REL1 REL2 ALARM Oxymax COS22/22D 3 E Example of a measuring system with COS22 1 Oxygen sensor COS22 2 Retractable assembly CPA475 3 Measuring cable COK21 4 Transmitter Liquisys COM253F a Input Measured variable Measuring range Dissolved oxygen [mg/l, μg/l, ppm, ppb, % SAT or hpa] Temperature [ C, F) All ranges refer to 20 C (68 F) and 1013 hpa (15 psi). Measuring range Optimum operational range 1) COS22/22D-*1 COS22/22D-* to 60 mg/l 0 to 600 %SAT 0 to 1200 hpa 0 to 100 Vol% to 10 mg/l 0 to 120 %SAT 0 to 250 hpa 0 to 25 Vol% 0.01 to 20 mg/l 0 to 200 %SAT 0 to 400 hpa 0 to 40 Vol% to 2 mg/l 0 to 20 %SAT 0 to 40 hpa 0 to 4 Vol% 1) Applications in this range ensure long service life and minimum maintenance effort 4 Endress+Hauser

5 Wiring Electrical connection COS22D The sensor is electrically connected to the transmitter by means of the special measuring cable CYK10. Special measuring cable CYK10 a COS22 The electrical connection between the sensor and the transmitter uses the multi-core special measuring cable COK21. Assignment External shield Active internal shield (NTC temp. sensor) Cathode Anode NTC temp. sensor Terminal S GN / YE YE PK BN BU Special measuring cable COK21 a en Performance characteristics Response time From air to nitrogen at reference conditions t 90 : < 30 s t 98 : < 60 s Reference operating conditions Reference temperature: Reference pressure: 25 C (77 F) 1013 hpa (15 psi) Signal current at air 1) Zero current Measured value resolution COS22/22D-*1 (standard sensor): 40 to 100 na COS22/22D-*3 (trace sensor): 210 to 451 na COS22/22D-*1 (standard sensor): < 0.1 % of the signal current at air COS22/22D-*3 (trace sensor): < 0.03 % of the signal current at air COS22/22D-*1 (standard sensor): 10 ppb in liquids, 0.2 hpa or 0.02 Vol% in gaseous media COS22/22D-*3 (trace sensor): 1 ppb in liquids, 0.02 hpa or Vol% in gaseous media equals the recommended resolution at the transmitter Maximum measured error ±1.25 % of measuring range 2) Repeatability ±1 % of the measuring range end 1) For the reference operating conditions indicated 2) In accordance with IEC at nominal operating conditions Endress+Hauser 5

6 Long-term drift Influence of medium pressure < 4 % per month under reference operating conditions 1 % per month when operating under reduced oxygen conditions (<4 Vol% O 2 ) Pressure compensation not necessary Polarization time COS22/22D-*1 (standard sensor): < 30 min for 98% of the signal value, 2 h for 100% COS22/22D-*3 (trace sensor): < 3 h for 98% of the signal value, 12 h for 100% Oxygen intrinsic consumption Electrolyte durability Temperature compensation COS22/22D-*1 (standard sensor): approx. 20 ng/h at air at 25 C (77 F) COS22/22D-*3 (trace sensor): approx. 100 ng/h at air at 25 C (77 F) Theoretical durability at po 2 = 210 mbar and T=25 C (77 F) COS22/22D-*1 (standard sensor): > 1.5 years COS22/22D-*3 (trace ensor): > 3 months COS22D Compensation of the membrane properties is realized in the transmitter from -5 to 90 C (23 to 194 F), extrapolation from 90 C (194 F) Measured variable as partial pressure [hpa] or in Vol%: -5 to 90 C (23 to 194 F) Measured variable as concentration [mg/l]: 0 to 80 C (32 to 176 F) Measured variable as saturation [%SAT]: -5 to 90 C (23 to 194 F) Defined ranges of temperature compensation depending on the unit of measure COS22 Compensation of the membrane properties depends on the transmitter used, recommended: 2.4 % per K a Installation Installation instructions Installation into appropriate assembly necessary (depending on application) NOTICE Installation without assembly can cause cable break or damage of the sensor Do not install the sensor suspended from the cable. Angle of installation Permissible angle of installation Not permissible! Not permissible! Permitted angle of installation a en 6 Endress+Hauser

7 Environment Ambient temperature range Storage temperature Ingress protection 5 to +135 C (23 to 175 F) 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 tap water). IP 68 (10 m (33 ft) water column at 25 C (77 F) during 45 days, 1 mol/l KCl) Humidity 0 to 100% COS22D: condensing, COS22: not condensing in the plug-in connector T-82 Process Process temperature Process pressure 5 to +135 C (23 to 175 F), non-freezing ambient pressure to 12 bar (174 psi) Temperature-pressure diagram Temperature-pressure diagram a Minimum flow rate Chemical durability COS22/22D-*1 (standard sensor): 0.02 m/s (0.07 ft/s) COS22/22D-*3 (trace sensor): 0.1 m/s (0.33 ft/s) Parts in contact with medium are chemically resistent against: Dissolved acids and bases Hot water and steam max. 135 C (275 F) CO 2 up to 100 %, with trace sensor COS22/22D-*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. Interference CIP capability Molecular hydrogen causes at least lesser findings and can cause total sensor failure. Versions COS22/22D-****2 Endress+Hauser 7

8 Mechanical construction Design COS22: Exploded view a COS22D: Exploded view a Plug-in head Pressure ring Sensor shaft O-ring 8.5 x 1.5 mm Membrane body Shaft cover Glass body with cathode and anode 8 9 Process sealing x 2.62 mm Process connection Pg 13.5 Dimensions COS22: Dimensions a COS22D: Dimensions a Endress+Hauser

9 Flow assembly for sensors with Ø 12 mm (accessories) Flow assembly for 120 mm sensors a Weight Depending on version (length) 0.2 kg (0.44 lbs) to 0.7 kg (1.54 lbs) Material In contact with medium Sensor shaft (depending on version) Electrode combination Process seal Process sealing for ATEX/FM/CSA Sealings/O-rings Process seal Membrane Stainless steel (AISI 316L) Titane Alloy C22 Silver / platinum Viton (FDA compliant) Viton (not FDA compliant) Viton (FDA compliant) Perfluoro elastomer with USP88 Class VI Silicone (FDA compliant), PTFE, steel mesh Process connection Thread Pg 13.5 Surface roughness Temperature sensor Electrolyte R a < 0.38 μm NTC 22 kω COS22/22D-*1 (standard sensor): alkalescent electrolyte COS22/22D-*3 (trace sensor): neutral electrolyte Endress+Hauser 9

10 Ordering information Product page You can create a complete and valid order code by using the configurator on the internet product page. Enter the following address to access the product page: Product configurator 1. You can choose from the following options on the product page located on the right: 2. Click "Configure this product". 3. The configurator opens in a separate window. You can now configure your device and receive the complete order code that applies for the device. 4. Afterwards, export the order code as a PDF or Excel file. To do so, click the appropriate button at the top of the page. Scope of delivery The following 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 Instructions Operating Instructions on data storage medium Certificates and approvals Ex approval Material certificates Version COS22D-BA ATEX II 1G / IECEx Ex ia IIC T3/T4/T6 Ga Manufacturer s declaration of FDA conformity The manufacturer declares the FDA compliance of the materials used. Ask your local sales center for the certificates. Product COS22/22D-****22 COS22Z-*2*2 COS22/22D-****23 COS22Z-*2*3 FDA certificate for Membrane, O-rings, process sealing Membrane, O-rings, process sealing Membrane, O-rings Membrane, O-rings 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 Ex zone. Inspection certificate Depending on the version, an inspection certificate 3.1 acc. to EN10204 is supplied (--> product structure). 10 Endress+Hauser

11 Accessories In the following sections, you find the accessories available at the time of issue of this documentation. For information on accessories that are not listed here, please contact your local service or sales representation. Assemblies (selection) Measuring cable Flowfit CPA240 ph/redox flow assembly for processes with a high level of requirements Ordering as per product structure (-> online Configurator, Technical Information TI00179C/07/EN Cleanfit CPA450 Manual retractable assembly for installing 120 mm sensors in tanks and pipework Ordering as per product structure (-> online Configurator, Technical Information TI00183C/07/EN Cleanfit CPA475 Retractable assembly for installation in tanks and pipework under sterile conditions Ordering as per product structure (-> online Configurator, Technical Information TI00240C/07/EN Unifit CPA442 Installation assembly for food, biotechnology and pharmaceuticals, with EHEDG and 3A certificate Ordering as per product structure (-> online Configurator, Technical Information TI00306C/07/EN Flow assembly for sensors with Ø 12 mm and length 120 mm compact stainless steel assembly with low sample volume order no.: COS22D CYK10 Memosens data cable For digital sensors with Memosens technology ph, redox, oxygen (amperometric), chlorine, conductivity (conductive) Ordering as per product structure (-> online Configurator, CYK11 Memosens data cable Extension cable for digital sensoren with Memosens protocol Ordering as per product structure (-> Online configurator, COS22 Special measuring cable COK21 Cable length 3 m (9.8 ft), order no Cable length 10 m (33 ft), order no Junction box COS22D Junction box RM For cable extension (e.g. for Memosens sensors) 5 terminals Cable entries: 2 x Pg 13.5 Material: PC Ingress protection: IP 65 Order no.: COS22 Junction box VBM For cable extension 10 terminals Cable entries: 2 x Pg 13.5 or 2 x NPT ½" Material: aluminum Ingress protection: IP 65 (i NEMA 4X) Order numbers: cable entries Pg 13.5: cable entries NPT ½": Endress+Hauser 11

12 Zero solution 3 units to produce 3 x 1 liter oxygen-free solution order no Maintenance kit Number of membranes A 3 pieces B 10 pieces Material of O-rings 2 Fluoroelastomer FDA 5 Perfluoroelastomer USP Cl. VI Material of membrane ring B Stainless steel D Titanium E Alloy C22 Material of process sealing 2 Fluoro elastomer FDA 3 Fluoro elastomer Ex COS22Z- E1 E2 F1 F2 G1 G2 G3 Electrolyte (optional) Standard, 25 ml Traces, 25 ml Order code Inner glass body (optional) Standard Traces Material of the shaft sleeve (optional) Stainless steel Titanium Alloy C22 Test, Certificate (optional, multiple selection possible) HA 3.1 IA Additional approval (optional, multiple selection possible) Pharma Certificate of compliance To complete your order code, simply add the optional features to the end of the order code. If you have any questions, please contact your local sales office. TI00446C/07/EN/ FM9