LPR Corrosion Sensors

Linear polarization or plane polarization occurs when an electromagnetic wave propagates in the same plane in a single direction. The resistance to this polarization is used to measure corrosion rate with the help of these probes. The probes use the LPR technique to measure corrosion resistance, wherein voltage is applied to the electrodes. They are scanned considering a certain range which may be from 0-2 mm/year to 0-200 mm per year. The voltage produces current which is used for calculating polarization resistance. This resistance is inversely proportional to corrosion rate. Hence, if the polarization resistance is low, the corrosion rate is high.

Linear Polarization Resistance (LPR) is an electrochemical method widely used to measure and monitor corrosion in industrial systems such as pipelines, cooling towers, and other equipment exposed to conductive water flow. LPR corrosion probes or sensors determine the corrosion rate, providing valuable data for system maintenance and protection.

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  • LPR Corrosion Sensor

    Walchem

    191951-20 Walchem CORROSION SENSOR, Mounting Fitting, 20 FT

    $268.00
    191951-20 Walchem CORROSION SENSOR, Mounting Fitting, 20 FT Cost effective and reliable solution to your corrosion monitoring and controlling needs. Each card provides two Linear Polarization Resistance (LPR) sensor Inputs to measure or control the...
    $268.00

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  • LPR Corrosion Sensor

    Walchem

    191951-06 Walchem Corrosion Sensor, Mounting Fitting 6 FT

    $245.00
    191951-06 Walchem Corrosion Sensor, Mounting Fitting 6 FT Cost effective and reliable solution to your corrosion monitoring and controlling needs. Each card provides two Linear Polarization Resistance (LPR) sensor Inputs to measure or control the...
    $245.00

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  • 191935-20 Walchem CORROSION SENSOR

    Walchem

    191935-20 Walchem CORROSION SENSOR, 20 FT

    $224.00
    191935-20 Walchem CORROSION SENSOR, 20 FT Cost effective and reliable solution to your corrosion monitoring and controlling needs. Each card provides two Linear Polarization Resistance (LPR) sensor Inputs to measure or control the corrosion rate and...
    $224.00

    Add to Cart The item has been added
  • 191935-06 Walchem CORROSION SENSOR

    Walchem

    191935-06 Walchem CORROSION SENSOR, 6 FT

    $201.00
    191935-06 Walchem CORROSION SENSOR, 6 FT Cost effective and reliable solution to your corrosion monitoring and controlling needs. Each card provides two Linear Polarization Resistance (LPR) sensor Inputs to measure or control the corrosion rate and...
    $201.00

    Add to Cart The item has been added

Walchem offers LPR sensor input/output cards integrated into equipment designed for precise chemical dosing and corrosion control-particularly suited for cooling tower applications. To ensure accurate readings, the electrodes in these sensors must be made from the same material as the system they monitor.

Key Benefits:

  • 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 stabilization time
  • Automatic electrode replacement reminder
  • On/Off Disturbance mode
  • Disturbance Control Algorithms that take advantage of the corrosion signal
  1. Target PPM mode with Disturbance
  2. Adjusts the target PPM higher if corrosion increases

Applications of LPR Probes or Sensor”

Here are some application areas of our LPR sensor.

  • Cooling towers
  • Industrial water processing
  • Domestic water treatment