Enter at least 2 characters to start the search.

Analog pH sensor
Orbipore CPS91

Orbipore CPS91 - Analog glass pH electrode for heavily soiled media ©Endress+Hauser
Orbipore CPS91 - Detail view open aperture ©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.

Glass electrode for heavily polluted media in chemical processes, paper or paint production

Orbipore CPS91 is the analog specialist for pH measurement in fibrous media or media with a high content of suspended solids such as dispersions, precipitation reactions or emulsions. The open aperture prevents fouling and guarantees you the most reliable measurement under extreme process conditions.

  • Simple products

  • Easy to select, install and operate

Technical excellence

Simplicity

  • Standard products

  • Reliable, robust and low-maintenance

Technical excellence

Simplicity

  • High-end products

  • Highly functional and convenient

Technical excellence

Simplicity

  • Specialized products

  • Designed for demanding applications

Technical excellence

Simplicity

Variable

FLEX selections Technical excellence Simplicity
  • F
  • L
  • E
  • X

Fundamental selection

Meet your basic measurement needs

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Lean selection

Handle your core processes easily

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Extended selection

Optimize your processes with innovative technologies

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Xpert selection

Master your most challenging applications

Technical excellence
Simplicity

Variable

  • Specs at a glance

    • Measurement range

      pH 0-14

    • Process temperature

      max. 110°C
      (230°F)

    • Process pressure

      max. 10 bar
      (145 psi)

Quick selection

Choose from our suggested options
Sales price
  • <%label%>
  • <%feature%>
  • Process Connection
  • <%message%>

or

Individual configuration

Continue your selection from all possible options
  • Benefits

    • Open aperture for application in heavily soiled media

    • Low maintenance and long service life due to stabilized gel filling

    • Not affected by fluctuations in pressure and temperature

  • Field of application

    • Chemical processes

    • Pulp and paper industry

    • Contaminated media and suspended solids
      - Dispersions
      - Precipitation
      - Emulsions

    With ATEX, FM, and CSA approval for application in hazardous areas.

Features and specifications

Back

Details

  • Measuring principle

    Potentiometric

  • Application

    - Process applications - media with high contamination: emulsions, suspensions, precipitation reactions - min. conductivity >500µS/cm.

  • Characteristic

    - rapid response - new, stabilised gel insensitive to contaminations

  • Measurement range

    pH 0-14

  • Measuring principle

    - Open aperture - double gel reference

  • Design

    - all shaft lengths with temperature sensor - advanced gel technology

  • Material

    Glass

  • Dimension

    Diameter: 12 mm (0.46 inch)
    Shaft lengths: 120, 225, 360 and 425 mm
    (4.68, 8.77, 14.04 and 16,57 inch)

  • Process temperature

    max. 110°C
    (230°F)

  • Process pressure

    max. 10 bar
    (145 psi)

  • Temperature sensor

    Optional with integrated Pt100 or Pt1000.

  • Ex certification

    Simple operational equipment, no certification necessary.

  • Connection

    TOP68 plug-in head

  • Ingres protection

    IP68

Documents / Manuals / Software