Walchem’s Amperometric Disinfection Sensors offer a cost-effective and reliable solution to your disinfection control requirements. Compatible with the WDIS and WebMaster® series controllers, the sensors continuously and directly measure the chemical concentration, without the use of reagents.

Key Benefits:

We offer sensors, 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 oxidizers and measurement ranges
Fast response – continuous measurement technique
No waste – the sample can be returned to the process

Non-Membrane Disinfection Sensors

  • The disinfection of hot potable water systems as currently required by the new ASHRAE standardsUp to 70 °C (158 °F)
    • Hospitals, schools, universities
  • High pressure sample loops where the water cannot be discharged to open atmosphere
    • Up to 8 bar (117 psi)
    • Hot tubs, cooling towers

Featuring:

  • Free Chlorine and ClO2 sensors
  • Designed for higher pressure and temperature, clean water applications
  • Amperometric 3-electrode sensors
  • The measuring and counter electrodes are in direct contact with the sample
  • The reference electrode is isolated from the water by an electrolyte-filled housing

Non-Membrane Sensors

Stabilized Bromine Sensors

Walchem’s Stabilized Bromine Sensors offer a cost-effective and reliable solution to your control requirements. The sensors continuously and directly measure the chemical concentration, without the use of reagents. Where ORP sensors and other amperometric sensors cannot reliably and repeatably measure bromine that is stabilized with sulfamate, this sensor can!