CPS61E

CPS61E EH | Alldatasheet

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Technical content

Digital with Memosens 2.0 technology For hygienic production processes with ion trap for long-term stable reference Application Hygienic and sterile applications (sterilizable, autoclavable):

• Bioreactor/fermenter
• Biotechnology
• Pharmaceutical industry
• Foods With the following approvals for use in explosive atmospheres in Zone 0, Zone 1 and Zone 2: ATEX, IECEx, CSA C/US, NEPSI, JPN Ex, INMETRO. Your benefits
• Biocompatibility with regard to biological reactivity in vitro (cytotoxicity) and in vivo successfully tested for the relevant parts in contact with the process medium
• Suitable for CIP/SIP cleaning and autoclavable at temperatures up to 140 °C (284 °F)
• Pressurized reference, specially for fermentation processes (TP reference system)
• Alternatively, TU reference system for upside-down installation, solidified gel in the internal reference lead
• Integrated pressure indicator (TP reference system)
• Very long service life thanks to poison-resistant reference with improved ion trap
• Bridging electrolyte free of silver ions, acrylamide-free
• Integrated NTC 30K temperature sensor for effective temperature compensation
• Parts in contact with the process medium not made from materials derived from animals. Minimized TSE/BSE risk in accordance with EMA. Other advantages provided by Memosens technology
• Maximum process safety thanks to non-contact, inductive signal transmission
• Data security thanks to digital data transmission
• Very easy to use as sensor data are saved in the sensor
• Predictive maintenance can be performed by recording sensor load data in the sensor Products Solutions Services Technical Information Memosens CPS61E pH sensor for bioreactors in life sciences and for the food industry TI01566C/07/EN/02.21 71542851 2021-10-08

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Function and system design Measuring principle pH measurement The pH value is used as a unit of measurement for the acidity or alkalinity of a medium. The membrane glass of the electrode delivers an electrochemical potential that depends on the pH value of the medium. This potential is generated by the selective accumulation of H+ ions on the outer layer of the membrane. As a result, an electrochemical boundary layer with an electrical potential difference forms at this point. An integrated Ag/AgCl reference system serves as the required reference electrode. The measured voltage is converted to the corresponding pH value using the Nernst equation. Measuring system A complete measuring system comprises:

• pH sensor CPS61E
• Memosens data cable CYK10 or CYK20
• Transmitter, e.g. Liquiline CM44, Liquiline CM42
• Assembly
• Retractable assembly, e.g. Cleanfit CPA875
• Permanent installation assembly, e.g. Unifit CPA842 Additional options are available depending on the application: Automatic cleaning and calibration system, e.g. Liquiline Control CDC90 A0044431  1 Example of a measuring system for pH measurement

1 Transmitter Liquiline CM44x

2 Memosens data cable CYK10

4 Permanent installation assembly CPA842

Communication with the transmitter Always connect digital sensors with Memosens technology to a transmitter with Memosens technology. Data transmission to a transmitter for analog sensors is not possible.

Digital sensors can store measuring system data in the sensor. This includes the following:

• Manufacturer data
• Serial number
• Order code
• Date of manufacture
• Calibration data
• Calibration date
• Slope at 25 °C (77 °F)
• Zero point at 25 °C (77 °F)
• Offset of integrated temperature sensor
• Number of calibrations
• Calibration history
• Serial number of the transmitter used to perform the last calibration or adjustment
• Operating data
• Temperature application range
• pH application range
• Date of initial commissioning
• Maximum temperature value
• Hours of operation under extreme conditions
• Number of sterilizations
• CIP counter
• Sensor load The data listed above can be displayed with the Liquiline CM42, CM44x, CM44x/R and Memobase Plus CYZ71D. Dependability Reliability Easy handling Sensors with Memosens technology have integrated electronics that store calibration data and other information (e.g. total hours of operation or operating hours under extreme measuring conditions). Once the sensor has been connected, the sensor data are transferred automatically to the transmitter and used to calculate the current measured value. As the calibration data are stored in the sensor, the sensor can be calibrated and adjusted independently of the measuring point. The result:
• Easy calibration in the measuring lab under optimum external conditions increases the quality of the calibration.
• Pre-calibrated sensors can be replaced quickly and easily, resulting in a dramatic increase in the availability of the measuring point.
• Thanks to the availability of the sensor data, maintenance intervals can be accurately defined and predictive maintenance is possible.
• The sensor history can be documented on external data carriers and evaluation programs, e.g. Memobase Plus CYZ71D,.
• The saved application data of the sensor can be used to determine the continued use of the sensor in a targeted manner. Integrity Data security thanks to digital data transmission Memosens technology digitizes the measured values in the sensor and transmits the data to the transmitter via a non-contact connection that is free from potential interference. The result:
• If the sensor fails or there is an interruption in the connection between the sensor and transmitter, this is reliably detected and reported.
• The availability of the measuring point is reliably detected and reported.

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With inductive transmission of the measured value using a non-contact connection, Memosens guarantees maximum process safety and offers the following benefits:

• All problems caused by moisture are eliminated:
• No corrosion at the connection
• Measured values cannot be distorted by moisture
• The transmitter is galvanically decoupled from the medium. Issues concerning "symmetrical high- impedance" or "asymmetry" or the type of impedance converter are a thing of the past.
• Electromagnetic compatibility (EMC) is guaranteed by screening measures for the digital transmission of measured values.
• Intrinsically safe electronics mean operation in hazardous areas is not a problem. Complete flexibility thanks to individual Ex approvals for all components, such as sensors, cables and transmitters. Input Measured variable pH value Temperature Measuring range Application range M and N
• pH: 0 to 14
• Temperature: 0 to 100 °C (32 to 212 °F) Pay attention to the operating conditions in the process. Power supply Electrical connection GN/YE YE GN BN WH GND Com A Com B GY A0024019  2 Measuring cable CYK10 or CYK20 ‣ Connect the Memosens measuring cable, e.g. CYK10 or CYK20 to the sensor. For further information on cable CYK10, see BA00118C Performance characteristics Reference system TP reference system: Ag/AgCl reference lead with ion trap, reference and bridging electrolyte 3 M KCl, acrylamide-free, flowable gel electrolyte, pressurized 7 bar (102 psi) (absolute); display via pressure indicator TU reference system: Ag/AgCl reference lead with ion trap, reference and bridging electrolyte 3 M KCl, acrylamide-free, solidified gel electrolyte Pay attention to the operating conditions in the process.

Orientation TP reference system

• Do not install the sensor upside-down.
• The angle of inclination from the horizontal must be at least 15°. An installation angle < 15° is not permitted, as otherwise an air bubble will form. Contact between the reference and membrane glass is then no longer guaranteed. 15° 15° A B A0028039  3 Installation angle at least 15° from the horizontal A Permitted orientation B Forbidden orientation TU reference system
• The sensor is suitable for upside-down installation.
• Install the sensor at any angle. 360° A0024597  4 Any installation angle Installation instructions For detailed installation instructions for the assembly: refer to the Operating Instructions of the assembly used. 1. Before screwing in the sensor, make sure the assembly thread, the O-rings and the sealing surface are clean and undamaged and that the thread runs smoothly. 2. Screw in the sensor and tighten by hand with a torque of 3 Nm (2.21 lbf ft) (specifications only apply if installing in Endress+Hauser assemblies). For detailed information on removing the moistening cap, see BA01988C TP reference system LCAUTION Glass sensor with pressurized reference Possibility of sudden rupture and injury from glass splinters! ‣ Always wear protective goggles when working with these sensors.

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For correct pH measurement: 1. Before commissioning, open the modified atmosphere packaging (MAP) by pulling the red tear tab. 2. Completely remove the MAP. 3. Remove the moistening cap with the bayonet lock. 4. Remove the reusable protective netting from the sensor. 5. For optimum accuracy, insert the sensor into a calibration buffer solution with pH 4 to 9 for 15 to 20 min before calibration. 6. Put the sensor into operation. For detailed information on removing the moistening cap, see BA01988C Hygienic requirements The following must be observed for easy-to-clean installation that complies with 3-A or EHEDG requirements:

• Use a certified process assembly
• Use a process assembly with a protective guard around the sensor to prevent the glass sensors from breaking in the process
• The installation must be self-draining
• Dead areas should be avoided Environment Ambient temperature range NOTICE Risk of damage from frost! ‣ Do not use the sensor at temperatures below 0 °C (32 °F). Storage temperature 0 to 50 °C (32 to 122 °F) Degree of protection IP 68 (10 m (33 ft) water column, 25 °C (77 °F), 45 days, 1 M KCl) Electromagnetic compatibility (EMC) Interference emission and interference immunity as per:
• EN 61326-1:2013
• EN 61326-2-3:2013
• NAMUR NE21:2017 Process Process temperature range Application M: 0 to 100 °C (32 to 212 °F) Up to 130 °C (266 °F) for sterilization Application N: 0 to 100 °C (32 to 212 °F) Up to 140 °C (284 °F) for sterilization Process pressure range Application M and N 0.8 to 7 bar (11.6 to 101.5 psi) absolute LCAUTION Pressurization of sensor due to prolonged use under increased process pressure Possibility of sudden rupture and injury from glass splinters! ‣ Avoid fast heating of these pressurized sensors if they are used under reduced process pressure or under atmospheric pressure. ‣ When handling these sensors, always wear protective goggles and appropriate protective gloves.

Conductivity Minimum 100 μS/cm (minimized flow; pressure and temperature must remain constant) Pressure-temperature ratings N A 212 0 100 [°C] T [°F] 140 284 20 40 60 80 120 24832 68 104 140 176 [psi] p [bar] 116 145 174 0 0 x A0044422-EN  5 Pressure-temperature diagram A Short periods for SIP and autoclaving for application N N Application M and N x Atmospheric pressure

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Design, dimensions 120 / 225 / 360 / 425 Ø 11.9 (0.47) 50 (1.97) A0042541  6 CPS61E TP reference system. Engineering unit: mm (in)

1 Memosens plug-in head with process connection

2 O-ring with thrust collar

3 Pressure indicator with air bubble (only for TP reference

system)

4 Ag/AgCl reference lead

5 Ion trap

6 Ceramic junction

7 Temperature sensor

Ø 11.9 (0.47) 50 (1.97) A0045225  7 CPS61E TU reference system. Engineering unit: mm (in)

1 Memosens plug-in head with process

3 Ag/AgCl reference lead with ion trap

4 Ceramic junction

5 Temperature sensor

Weight Installed length 120 mm (4.72 in) 225 mm (8.86 in) 360 mm (14.17 in) 425 mm (16.73 in) Weight 40 g (1.4 oz) 60 g (2.1 oz) 90 g (3.2 oz) 100 g (3.5 oz) Materials Sensor shaft Glass to suit process pH membrane glass Type N Metal lead Ag/AgCl Open aperture Ceramic junction, zirconium dioxide O-ring FKM Process coupling PPS fiber-glass reinforced Nameplate Ceramic metal oxide Temperature sensor NTC 30K Plug-in head Memosens plug-in head for digital, non-contact data transmission, pressure resistance 16 bar (232 psi) (relative) Process connections Pg 13.5

Certificates and approvals Current certificates and approvals for the product are available via the Product Configurator at www.endress.com. 1. Select the product using the filters and search field. 2. Open the product page. The Configuration button opens the Product Configurator.

Ordering information

Product page www.endress.com/cps61e Product Configurator On the product page there is a Configure button to the right of the product image. 1. Click this button.  The Configurator opens in a separate window. 2. Select all the options to configure the device in line with your requirements.  In this way, you receive a valid and complete order code for the device. 3. Export the order code as a PDF or Excel file. To do so, click the appropriate button on the right above the selection window. For many products you also have the option of downloading CAD or 2D drawings of the selected product version. Click the CAD tab for this and select the desired file type using picklists. Scope of delivery The delivery comprises:

• Sensor in the version ordered
• Operating Instructions
• Safety instructions for the hazardous area (for sensors with Ex approval) Accessories The following are the most important accessories available at the time this documentation was issued. ‣ For accessories not listed here, please contact your Service or Sales Center. Device-specific accessories Assemblies 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 TI01367C Cleanfit CPA875
• Retractable process assembly for sterile and hygienic applications
• For in-line measurement with standard sensors with 12 mm diameter, e.g. for pH, ORP, oxygen
• Product Configurator on the product page: www.endress.com/cpa875 Technical Information TI01168C Buffer solutions High-quality buffer solutions from Endress+Hauser - CPY20 The secondary buffer solutions have been referenced to primary reference material of the PTB (German Federal Physico-technical Institute) or to standard reference material of NIST (National

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Institute of Standards and Technology) according to DIN 19266 by a laboratory accredited by the DAkkS (German accreditation body) according to DIN 17025. Product Configurator on the product page: www.endress.com/cpy20 Measuring cable Memosens data cable CYK10

• For digital sensors with Memosens technology
• Product Configurator on the product page: www.endress.com/cyk10 Technical Information TI00118C Memosens laboratory cable CYK20
• For digital sensors with Memosens technology
• Product Configurator on the product page: www.endress.com/cyk20

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