Walchem LPR Corrosion Sensor

LPR Corrosion Sensor

LPR monitor corrosion in industrial systems, piping, cooling towers, and more that are exposed to the flow of conductive water

Key benefits:

Linear polarisation resistance (LPR) is an electrochemical technique used to monitor corrosion in several industrial systems, piping, cooling towers, and more that are exposed to the flow of conductive water. This is done with LPR corrosion probes or sensors, which measure the rate of corrosion. Walchem offers LPR sensor input/output cards in equipment capable of feeding chemicals for corrosion control, especially in cooling towers. The electrodes used on these sensors must be the same material as those in the system.
  • Reliable 4-wire design
  • Corrosion rate and imbalance
  • Dual corrosion sensor input
  • Automatically measures conductivity and compensates for it each cycle
  • Able to set a control delay during the initial stabilisation time
  • Automatic electrode replacement reminder
  • Disturbance control algorithms that take advantage of the corrosion signal
    • Target PPM mode with disturbance
    • Adjusts the target PPM higher if corrosion increases
  • On/Off disturbance mode


Alternative products

Pyxis: CR-200
Pyxis: CR-300

Alternative product advice needed?



Custom build solutions

Redefine simplicity and flexibility in cooling tower solutions with our plug-and-play service that delivers rapid installation.

We offer standard layout that serves as a solid foundation but we can be customise to meet the unique needs of any client site. We tailor the build to achieve optimal performance.

Our custom builds are popular as a comprehensive solution that's wired and seamlessly integrated meeting any site requirements. Email us today to learn more about our bespoke custom built solutions to speed up your installation and reduce operation or project downtime.


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