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Compact conductivity device
Smartec CLD18

Compact conductivity device
Smartec CLD18 ©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.

Toroidal conductivity measuring system for hygienic applications

Smartec CLD18 is the cost-effective solution for all applications in beverage plants where small tubes are used and where the toroidal measurement is used as a switch function. The combination of a transmitter and a sensor is interference-free, easy-to-use and features a hygienic design that protects your products and processes from contamination. Smartec CLD18 ensures the Overall Equipment Effectiveness (OEE) of your plant thanks to fast and reliable CIP and phase separation measurements.

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  • Benefits

    • Unique hygienic design avoids contamination

    • 3-A approval

    • Compliant with EG 2023/2006 and 1935/2004

    • Suitable for cleaning-in-place (CIP)

    • Compact design permits installation in small tubes without restricting the flow

  • Field of application

    The hygienic Smartec CLD18 measures toroidal conductivity in beverage applications:

    • Control of CIP processes in the return channel

    • Concentration control in remaking of CIP cleaning agents

    • Product monitoring in pipe systems, bottling plants

    • Beer - Push...

Features and specifications



  • Measuring principle


  • Application

    Food and beverage industries

  • Characteristic

    Specifically intended for use in beverage industry applications and especially suitable for:
    Phase separation, control of CIP, concentration control, product monitoring, leakage monitoring

  • Measurement range

    200 µS/cm to 1000 mS/cm
    Cell constant k: 11.0 1/cm

  • Measuring principle

    Inductive conductivity measurement

  • Design

    Hygienic design with FDA certified virgin PEEK

  • Material

    Sensor: PEEK
    Process connection 1.4435 (316L)
    Seal: EPDM

  • Process temperature

    -10 °C to 110 °C (14 °F to 230 °F)
    Sterilization: max. 130 °C at 6 bar abs up to 60 min
    (Max. 266 °F at 87 psi up to 60 min)

  • Process pressure

    13 bar abs up to 50 °C (188.5 psi up to 122 °F)

    7.75 bar abs at 110 °C (112 psi at 230 °F)

    6.0 bar abs at 130 °C for max. 60 minutes
    (87 psi at 266 °F for max. 60 minutes)

  • Temperature sensor

    Pt 1000 (class B)

  • Connection

    Dairy pipe, aseptic-fitting DN40 and DN50, Clamp 2"
    ISO 2852, SMS-2", Varivent N DN 40-125
    Thread G1 1/2 SS, G1 1/2 PVC , Union nut 2 1/4 Inch PVC

  • Ingres protection


  • Output

    Conductivity and temperature.0/4-20 mA

  • Additional certifications

    3A, FDA, EHEDG
    EC Regulation No. 1935/2004

Documents / Manuals / Software

Accessories / Spare parts

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