Water Quality Sensor 0-14PH by Boqu Instrument

Accurate, Portable, Easy-to-Use Residual Chlorine sensor 

The digital residual chlorine sensor is a new generation of intelligent water quality detection digital sensor independently developed by BOQU Instrument. Adopt advanced non-membrane constant voltage residual chlorine sensor, no need to change diaphragm and medicine, stable performance, simple maintenance. It has the characteristics of high sensitivity, fast response, accurate measurement, high stability, superior repeatability, easy maintenance, and multi-function. It can accurately measure the residual chlorine value in solution. It is widely used in self-controlled dosing of circulating water, chlorine control in swimming pools, and continuous monitoring and control of residual chlorine content in aqueous solutions in drinking water treatment plants, drinking water distribution networks, swimming pools, hospital wastewater, and water quality treatment projects.

Accurate Residual Chlorine Measurement

Accurate chlorine measurement, especially in water treatment or monitoring, is typically based on electrochemical or colorimetric methods. Below is an explanation of both approaches, which are widely used for measuring chlorine levels.

Electrochemical (Amperometric) Method

The electrochemical method uses a sensor or electrode to measure chlorine concentration. This technique involves the oxidation or reduction of chlorine at an electrode surface, generating a measurable electrical current proportional to the chlorine concentration.

• Free chlorine (Cl₂) or hypochlorous acid (HOCl) in the water sample reacts at the surface of the electrode.
• Two electrodes (a working electrode and a reference electrode) are immersed in the sample. Chlorine is reduced at the working electrode, creating an electric current.
• The magnitude of this current is directly proportional to the concentration of chlorine in the solution.

Electrochemical sensors often have a membrane that selectively allows chlorine to pass through and reach the electrodes. This method is sensitive and provides continuous real-time monitoring, commonly used in industrial and municipal water treatment systems.

Advantages:

• Continuous, real-time measurement.
• Good sensitivity for low levels of chlorine.
• Reliable for both free and total chlorine measurements.

Material Introduction

Residual Chlorine SENSOR is constructed using high-quality and durable materials to ensure long-lasting and reliable performance. The product features a sleek and sturdy design, with a sensor input connector and data storage capabilities for calibration and measurement data. With its durable construction and precision engineering, Conductivity SENSOR is an essential tool for continuous monitoring of ph levels in various industries, such as environmental protection, pharmaceutical, foodstuff, running water, and many more. Boqu Instrument Co., Ltd., a leading manufacturer, is dedicated to using advanced technologies to solve environmental problems, ensuring high-quality and reliable performance for its products.