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Analog conductivity sensor
Condumax CLS13

Analog conductivity sensor
Condumax CLS13 ©Endress+Hauser

The conductivity of a liquid can be measured using the conductive or toroidal measuring principles. This video shows what it is about and how these measuring principles work.

Conductive conductivity sensor for high temperature applications in the power & energy industry

Condumax CLS13 is a robust conductivity sensor for steam/water cycles in power plants. It is optimized for low conductivities (even under very high temperatures and pressures) to protect your processes from deposits and corrosion. Low maintenance and simple to commission (large connection compartment), this is the ideal sensor for tough environments.

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  • Benefits

    • Reliable and accurate measuring values at low conductivities

    • Optimized for high pressures and temperatures up to 250°C (482°F)

    • Easy cleaning thanks to stainless steel body and removable outer electrode

    • Robust design for high durability

    • Quality certificate...

  • Field of application

    Condumax CLS13 measures conductivity in the steam/water cycle in the power & energy industry:

    • Condensate monitoring

    • Boiler feedwater monitoring

    • Boiler blowdown control

    The sensor can be used in all low conductivity applications with very high...

Features and specifications



  • Measuring principle


  • Application

    Process, power plant

  • Characteristic

    2-electrode conductivity cell for high temperature applications.

  • Measurement range

    k=0,01: 0-20,0 µS/cm
    k=0,1: 0-200,0 µS/cm

  • Measuring principle

    Coaxially arranged electrodes for high temperature applications

  • Design

    2-electrode conductivity cell with coaxially arranged electrodes
    Connection head and cooling body made of casting aluminium with fixed cable connection PG16

  • Material

    Electrode: 1.4571
    Sealing: Kalrez, ceramic

  • Dimension

    Electrode diameter: 25 mm (0.984 inch)
    Immersion depth: 50 to 115 mm (1.97 to 4.48 inch)
    Weight: 3kg

  • Process temperature

    max. 250 °C (482 °F)

  • Process pressure

    max. 40 bar (580 psi)

  • Temperature sensor

    Integrated Pt100

  • Ex certification


  • Connection

    Process connection: G1"

  • Ingres protection


  • Additional certifications

    Calibration certificate with cellconstant

Documents / Manuals / Software

Accessories / Spare parts

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