ORP (Oxidation-Reduction Potential) is a term used for the measurement of oxidation or reduction reactions in a liquid. pH-controlled dosing systems are systems used to keep the pH value of the solution within a certain range. These systems are often used in industrial processes, water treatment plants and laboratory environments.pH-controlled dosing systems are often integrated with automatic control systems. These systems continuously monitor the pH value of the liquid, which is measured by a pH sensor. When the pH value goes out of a certain range, the system automatically adds a specific chemical or acid/base via a dosing pump to bring the pH value to the desired range.The advantages of these systems include increasing process stability, improving product quality and extending the life of the equipment. They can also constantly maintain optimal pH levels without the need for human intervention. This can reduce operating costs and increase efficiency.However, pH-controlled dosing systems must be designed and calibrated correctly. Otherwise, they may lead to undesirable consequences and cause problems in operations. Therefore, it is important that these systems are professionally installed and maintained regularly.