Walchem disinfection sensors: free chlorine/ bromine, total chlorine, chlorine dioxide, peracetic acid, ozone & hydrogen peroxide
Walchem’s amperometric disinfection sensors offer a cost effective and reliable solution to your disinfection control requirements. The sensors continuously and directly measure the chemical concentration, without the use of reagents. The sensors are available in varying ranges of concentration, for free chlorine/bromine, total chlorine, chlorine dioxide, ozone, peracetic acid and hydrogen peroxide. Whether the application is a cooling tower, food and beverage, drinking water, wastewater, or swimming pool, these sensors are the ideal solution.
  • Low maintenance; no costly reagents or tubing to replace
  • Broad range of applications; wide variety of oxidisers and measurement ranges
  • Fast response; continuous measurement technique
  • No waste; the sample can be returned to the process
  • Long-lasting amperometric electrodes with rugged membranes
  • Integrated temperature compensation
  • Relatively insensitive to changes in sample flow rates
  • Large flow cell openings which prevent clogging
  • Excellent long-term stability
Walchem amperometric disinfection probe assembly
Walchem non-membrane free chlorine or chlorine dioxide disinfection sensors
Sensors for applications with high pressures & temperatures, e.g. cooling tower, food/ beverage, drinking water, wastewater & swimming pool.
  • The disinfection of hot potable water systems (up to 70 deg C) as currently required by the new ASHRAE standards for hospitals, schools, universities
  • High pressure (up to 8 bar/117 psi) sample loops where the water cannot be discharged to open atmosphere, such as hot tubs and cooling towers
  • Free chlorine and chlorine dioxide sensors
  • Designed for higher pressure & temp, clean water applications
  • Amperometric 3-electrode sensors
  • Measuring and counter electrodes are in direct contact with the sample
  • Low maintenance - no costly reagents/tubing to replace
  • Fast response, continuous measurement technique
  • No waste - sample can be returned to the process
Picture to right shows Walchem’s new disinfection flow cell.
  • Fraction of the price of previous matched design
  • Drop in replacement to older units
  • Accepts both metric & USA tubing
  • Works with non-membrane disinfection sensors
Wlachem disinfection sensor flow cell
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