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Analog non-glass pH sensor
Tophit CPS491

Tophit CPS491- Analog non-glass pH electrode for heavily soiled media ©Endress+Hauser
Tophit CPS491- Analog non-glass pH sensor for chemical processes, paper and paint production ©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.

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

Tophit CPS491 is the analog specialist for fibrous media or media with a high content of suspended solids such as dispersions, precipitation reactions or emulsions. Its unbreakable shaft ensures a long operating life while the open aperture prevents fouling and guarantees reliable measurement under harsh process conditions.

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  • Specs at a glance

    • Measurement range

      pH 0-14

    • Process temperature

      max. 110°C
      (230°F)

    • Process pressure

      max. 10 bar
      (145 psi)

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  • Benefits

    • Unbreakable for highest product safety

    • Open aperture for application in heavily soiled media

    • Application possible at low temperatures

    • Low maintenance thanks to long calibration intervals

  • 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

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Details

  • Measuring principle

    ISFET

  • Application

    - process applications - non-glass, break-proof - low temperatures - min. conductivity >500µS/cm - emulsions, suspensions, organic solvents

  • Characteristic

    - rapid response at low temperatures - stabilised gel insensitive to contamination - lower amount of maintenance required than with glass - overhead installation

  • Measurement range

    pH 0-14

  • Measuring principle

    - open aperture - double gel reference

  • Design

    - all shaft lengths with temperature sensor - advanced gel technology

  • Material

    PEEK / metal oxide / Perfluorelastomere

  • 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 Pt1000.

  • Ex certification

    ATEX
    FM

  • Connection

    Top68 connection head

  • Ingres protection

    IP68

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