Memosens CPF82E

Summary

Product identification

Product Name: Memosens CPF82E Product Type: ORP sensor Technology: Memosens 2.0

Application

The Memosens CPF82E is designed for various applications in mining operations, industrial water, and wastewater treatment, including:

• Flotation
• Leaching
• Neutralization
• Outlet monitoring
• Inlet and outlet monitoring

Key Features and Benefits

• Electrolyte Bridge: Features a proven KNO₃ electrolyte bridge for enhanced protection against electrode poisons such as S²⁻ or CN⁻ ions.
• Installation: Equipped with threaded connections (NPT ¾") top and bottom for straightforward user installation.
• Temperature Range: Suitable for measurements within a temperature range of 0 to 80 °C (32 to 176 °F).
• Temperature Sensor: Includes an integrated NTC 30K temperature sensor.
• Protection: Comes with a protection guard to prevent damage.
• Memosens Technology Benefits:
  • Process Safety: Maximum safety through non-contact, inductive signal transmission.
  • Data Security: Secure digital data transmission.
  • Ease of Use: Sensor data (e.g., calibration data, operating hours) are saved in the sensor for easy handling and quick replacement.
  • Predictive Maintenance: Enables predictive maintenance by recording sensor load data.

Measuring Principle

• ORP Measurement: Measures the oxidation-reduction potential (ORP), indicating the equilibrium state between oxidizing and reducing components in a medium.
• Electrodes: Uses a platinum or gold electrode for ORP measurement, with an integrated Ag/AgCl reference system.

Measuring System Components

A complete measuring system comprises:

• Sensor CPF82E
• Transmitter (e.g., Liquiline CM44x/R or Liquiline M CM42)
• Memosens data cable (e.g., CYK10)

Communication and Data Storage

• Digital sensors with Memosens technology must be connected to a Memosens-compatible transmitter.
• The sensor can store various data, including:
  • Manufacturing data (serial number, order code, date of manufacture)
  • Calibration data (date, offset, history)
  • Application data (temperature/ORP range, first commissioning date, operational hours)
• This data can be accessed via transmitters like Liquiline CM42/CM44x or Memobase Plus CYZ71D.

Input

• Measured Variables:
  • ORP: -1500 mV to +1500 mV
  • Temperature
• Reference System: Double chamber reference system with 3 M KNO₃ gel and Ag/AgCl reference lead with 3 M KCl gel.

Environmental and Process Limits

• Ambient Temperature Range: Storage temperature is 0 to 50 °C (32 to 122 °F). (Note: Do not use below 0 °C due to frost risk).
• Degree of Protection: IP 68 (rated for 10 m water column, 25 °C, 45 days, 1 M KCl).
• Electromagnetic Compatibility (EMC): Complies with EN 61326-1, EN 61326-2-3, and NAMUR NE21.
• Process Temperature Range: 0 to 80 °C (32 to 176 °F).
• Process Pressure Range: 0.8 to 11 bar (11.6 to 159.5 psi) absolute. (Caution: Avoid rapid heating of pressurized sensors under reduced pressure).
• Minimum Conductivity: 50 μS/cm (at atmospheric pressure, without flow, minimized flow; pressure and temperature must remain constant).

Mechanical Construction

• Dimensions: See the provided diagram for detailed dimensions. The sensor features an NPT ¾" thread.
• Weight: 0.12 to 0.15 kg (0.26 to 0.33 lb), excluding cable.
• Materials:
  • Housing, sensor shaft: PPS
  • ORP sensor: Platinum
  • Double chamber reference system: KNO₃ and KCl/AgCl
  • Plug-in head: Memosens plug-in head (pressure resistance 16 bar relative).
• Process Connections: NPT ¾".

Certificates and Approvals

• CE mark
• TÜV certificate for Memosens plug-in head (pressure resistance 16 bar relative)
• EAC conformity

Ordering Information

Refer to the product page (www.endress.com/cpf82e) for configuration and to obtain a complete order code.

Scope of Delivery

• Sensor in the ordered version
• Operating Instructions

Accessories

• Assembly: Flexdip CYA112 (Immersion assembly)
• Measuring Cable: Memosens data cable CYK10, Measuring cable CPK9
• Buffer Solutions: ORP buffer solution CPY3

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror