ABB-Optical dissolved oxygen sensor ADS420

The ABB optical dissolved oxygen sensor ADS420 is an advanced solution designed to provide precise and reliable measurements of dissolved oxygen (DO) in various industrial and environmental applications. This optical sensor is built for performance in wastewater treatment plants, aquaculture systems, and process industries, where accurate DO monitoring is essential for process efficiency and environmental compliance.

Using cutting-edge optical measurement technology, the ABB optical dissolved oxygen sensor ADS420 eliminates the need for routine maintenance tasks like electrolyte replacement or membrane cleaning. It operates without drift, ensuring consistent accuracy over time. The sensor’s robust construction ensures reliable operation even in harsh conditions with high solids, fouling, or fluctuating temperatures.

The ABB optical dissolved oxygen sensor ADS420 features a factory-calibrated optical cap that provides years of maintenance-free operation. Its digital communication options (such as Modbus) and compatibility with ABB transmitters allow seamless integration into existing control systems. With built-in temperature compensation and advanced diagnostics, it enhances system performance and reduces troubleshooting time.

Installation of the sensor is quick and flexible—it supports both submersion and flow-through configurations. The device is ideal for continuous, real-time monitoring of oxygen levels, which is critical for energy-efficient aeration control and process optimization in biological treatment systems.

Choosing the ABB optical dissolved oxygen sensor ADS420 means choosing durability, low total cost of ownership, and reliable measurement in challenging environments. Its long service life, minimal maintenance needs, and stable performance make it the preferred choice for operators and engineers worldwide.