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Analog pH sensor
Orbisint CPS11

Glass electrode for standard applications

  • Orbisint CPS11 - Analog pH sensor with dirt-repellent PTFE diaphragm ©Endress+Hauser
  • Orbisint CPS11 - Detai view PTFE diaphragm ©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.

Orbisint CPS11 is the all-rounder for pH measurement in process and environmental applications. It performs reliably and accurately even in highly alkaline media or hazardous areas. Designed for low maintenance and a long operating life, the sensor offers you best value for money.


  • Robust electrode with long poison diffusion path, requires low maintenance due to large, dirt-repellent PTFE ring diaphragm

  • Suitable for harsh applications: Process glass for highly alkaline media and pressure-stable up to 16 bar (232 psi)

  • Optional salt ring for low conductivity applications such as boiler feed water and water for injection

Field of application

  • Long-term monitoring and limit monitoring of processes with stable process conditions:
    - Chemical industry
    - Pulp & paper industry
    - Power plants (e.g. flue gas washers, boiler feed water)
    - Incineration plants

  • Water treatment:
    - Drinking water
    - Cooling water
    - Well water

With ATEX, FM, CSA approval for use in hazardous areas.

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