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Digital pH sensor
Orbipac CPF81D

Orbipac CPF81D - Compact digital pH sensor for harsh environments ©Endress+Hauser
Orbipac CPF81D - Compact Memosens pH sensor for primaries and industrial wastewater ©Endress+Hauser

The pH-value of a liquid can be calculated using the potentiometric measurement principle. This video shows what it is about and how this measuring principle works.

Memosens converts the measured value to a digital signal and transfers it to the transmitter without a contacting connection. This video shows how Memosens optimizes process control and maintenance.

Memosens compact electrode for wastewater, primaries and metal industries

Orbipac CPF81D is the digital, simple solution for harsh environments. It measures reliably and accurately even in fibrous media and at high flow rates. With its integrated assembly, the electrode saves space and time during flow or immersion installation. Thanks to Memosens digital technology, CPF81D combines maximum process and data integrity with simple operation. It resists corrosion and moisture, enables lab calibration and facilitates predictive maintenance.

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Meet your basic measurement needs

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Handle your core processes easily

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Optimize your processes with innovative technologies

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Variable

  • Specs at a glance

    • Measurement range

      pH 0 to 14

    • Process temperature

      Version LH: 0 to 110 °C (32 to 230 °F)
      Version NN: 0 to 80 °C (32 to 170 °F)

    • Process pressure

      1 to 10 bar abs at 80 °C
      (15 to 145 psi at 176 °F)

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  • Benefits

    • Suitable for flow and immersion installation

    • Long time stable: Second electrolyte bridge for better protection against electrode poisoning ions such as S2- or CN-

    • Robust polymer housing protects against mechanical damage

    • Optional flat membrane suitable...

  • Field of application

    Orbipac CPF81D is the robust pH sensor for processes in mining industries and treatment of industrial water and wastewater. It monitors:

    • Flotation

    • Leaching

    • Neutralization

    • Inlet and outlet

Features and specifications

Back

Details

  • Measuring principle

    Potentiometric

  • Application

    Flotation, leaching, neutralization, outlet monitoring

  • Characteristic

    Resistent against electrolyte poisoning and dirt repellent gel-electrode including process connection NPT 3/4"

  • Measurement range

    pH 0 to 14

  • Measuring principle

    Gel-compact electrode with double chamber reference system, kalium nitrate bridge electrolyte and PTFE-diaphragm

  • Design

    Compact electrode in PPS housing with NPT 3/4" process connection

  • Material

    Housing: PPS

    pH electrode: lead-free membrane glass

    Double chamber reference system: KNO3 and KCl/AgCl

  • Dimension

    Diameter: 22 mm (0.87 inch)
    Length (protcetion guard, long shaft): 150 mm (5.91 inch)
    Length (flat membrane): 140 mm (5.51 inch)

  • Process temperature

    Version LH: 0 to 110 °C (32 to 230 °F)

    Version NN: 0 to 80 °C (32 to 170 °F)

  • Process pressure

    1 to 10 bar abs at 80 °C
    (15 to 145 psi at 176 °F)

  • Temperature sensor

    Pt1000

  • Ex certification

    (optional) FM IS NI Cl. I Div.1&2, Groups A-D

  • Connection

    Memosens plug

  • Ingres protection

    IP68

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
    • Order code 71038228

      Memoclip label Memosens sensor

      for assignment of sensors to measuring loop. 100 sensor clips with printable labels

    • Order code CPY20-

      Technical buffer solution CPY20

      pH quality buffer solution, referenced to primary reference material of PTB and standard reference material of NIST. in DAkkS accredited buffer Laboratory.

    • Order code CPY4-

      KCL-Electrolyte solution CPY4

      For liquid filled electrodes

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