Application Note

Measuring The Chlorine Content In The Emergency Chlorination Of Waterworks

Source: KROHNE, Inc.


  • Determining the chlorine content in drinking water for measuring free chlorine in the emergency chlorination of a waterworks
  • 100% measurement availability thanks to low-maintenance, membrane-free sensor and automatic sensor cleaning
  • Uninterrupted calibration by comparison to the laboratory value after DPD


Many municipal waterworks perform no permanent disinfection of drinking water. However, in many cases a process known as emergency chlorination takes place. The process is switched on in case of need, adding chlorine to the drinking water as a disinfectant.