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Conductivity transmitter
Liquisys CLM253

Compact field device for all industries

  • ©Endress+Hauser

Liquisys CLM253 is a standard transmitter for all analog conductivity sensors. It improves your operational safety thanks to continuous plausibility, process and sensor checks. Select from numerous hardware and software modules, such as relays or fieldbus communication, to adapt it exactly to your measuring task. This modularity also allows you to upgrade the transmitter at any time. A simple menu and calibration make configuration and operation fast and easy.


  • More operational safety: Continuous process check system, customized alarm configuration, calibration plausibility check.

  • Broad functionality: Conductivity, resistivity and concentration measurement, ultrapure water monitoring according to USP and EP.

  • Easy to operate and service: Intuitive user interface, easy calibration, direct access for manual contact control.

  • Reduced maintenance: Automatic cleaning function (with Chemoclean) triggered by alarm or limit switch.

  • Fit for every application: Numerous extensions, such as P(ID) controller, timer, etc., allow for flexible adaption to all processes.

Field of application

The Liquisys CLM253 transmitter works with all analog conductivity sensors in non-hazardous areas, for example in these industries and their utilities:

  • Chemicals

  • Food & Beverages

  • Life Sciences

  • Power & Energy

  • Water &Wastewater

  • Primaries & Metal

Liquisys CLM253 features the following protocols and interfaces:

  • 0/4...20 mA

  • HART



Features and specifications

Documents / Manuals / Software

Accessories / Spare parts

Predecessor / Successor

Predecessor: CLM130, CLM141, CLM141S, CLM151, CLM170, CLM240, CLM252

Success stories


Endress+Hauser (Ireland) Ltd.
Embassy Office Park Exchequer House Kill County Kildare , Ireland
Tel.: +353 (45) 98 92 00
Fax: +353 (45) 86 81 82
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