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residual chlorine refers to the effective disinfectant components remaining in water after disinfection at a water treatment plant commonly using chlorine gas, sodium hypochlorite, etc. The function of residual chlorine sensors is to monitor the concentration of residual chlorine in the water in real time. Residual chlorine sensor commonly used in water treatment plants are primarily based on electrochemical methods and colorimetric methods. Delfino's CL4 residual chlorine sensor employs a membrane-covered amperometric dual-electrode system suitable for measuring free inorganic chlorine under constant pH conditions. If you are interested in the chlorine sensors, welcome to contact us: info@delfino.hk

Delfino online pH controller has two 4-20mA current outputs. It can not only realize the output of pH values, but also control the metering pump to realize the dosing of acid or base. This video shows how to connect the controller with the dosing pump, how to set the current on the pH controller. If you are interested in the online pH controller, do not hesitate to contact: info@delfino.hk