(ABB: Stonehouse, U.K.) -- ABB has launched ChloroStar, a family of sensors, transmitters, and accessories for accurate and reliable chlorine measurement and analysis that enable users in water, wastewater, and other industries to control chlorine more efficiently, enhancing treatment and increasing process uptime.

Because the removal of potentially harmful pathogens is critical for both potable and wastewater quality, strict regulations govern chlorination treatment in utility and industrial applications. To date, chlorine measurement and analysis have been challenging, with many sensor technologies requiring time-consuming maintenance to resolve issues such as fouling and drift that have affected sensor performance.

The ChloroStar family of chlorine analyzers addresses this challenge. With self-cleaning and resilient sensors, modular installation, predictive maintenance, and diagnostics, the ChloroStar family makes it quicker and easier than ever to achieve accurate measurements and maximum uptime of the chlorine dosing process while ensuring that sensor maintenance costs are minimal.

“Accurate and effective chlorination is key to safe and efficient treatment of potable and wastewater supplies, making maximum availability of measuring devices a critical requirement,” says Nikodem Siwek, global product manager, Continuous Water Analysis, ABB Measurement & Analytics. “The new ChloroStar family enables users to count on maximum availability and reliability in their chlorine measurements whilst reducing maintenance.”

The ChloroStar comprises two components: the ChloroStar Digital Sensor and the ChloroStar Cell.

The ChloroStar Digital Sensor is an intelligent tri-electrode sensor for measuring free or total chlorine. Featuring in-built diagnostics, pH compensation, and EZLink connection technology, the unit provides reduced drift and increased accuracy, while the membrane-covered design minimizes cleaning and removes the need for additional sample buffering. The sensor is designed for use with ABB’s innovative InFlow Multi-Cell, a modular flow-cell system that delivers stable chlorine measurement independent of variations in sample flow. An industry-leading measurement of 1 L/hr (0.26 gal/hr) makes it ideal for applications in drinking water treatment, distribution, or closed-loop systems.

The ChloroStar Cell is a fast-reacting, direct-contact electrode sensor with self-cleaning technology for measuring disinfectants such as chlorine and chlorine dioxide. Its innovative open-cell, flow-through design uses the sample flow to continuously clean the electrodes, preventing blocking and clogging that affect other sensor types. The cell also reduces operational expenditure through 20% lower consumables cost compared to conventional solutions.

At the same time, the design ensures top sensitivity for reliable long-term deployment, even in high-fouling applications such as municipal and industrial wastewater.

Enhanced performance can be achieved by combining the ChloroStar family with other technologies in ABB’s continuous water quality portfolio.

The ChloroStar sensors can be used with ABB’s versatile AWT420 dual-channel transmitter, capable of measuring a wide variety of parameters in a single device. With the ability to mix and match traditional analog or smart digital EZLink sensors, the AWT420 enables users to create a tailored water analysis system to meet specific needs. Features such as Dynamic QR assistance, dual-sensor validation, dual PID control, and auto pH correction provide reliable control of disinfection measurement.

Convenient mobile access to essential chlorine sensor information can be achieved via the EZLink Connect App. Using Bluetooth to send data to a smartphone or tablet, users can view and share measurements, audit data rapidly, and track maintenance tasks’ status.

The handheld EZTest 100 chlorine photometer gives a fast and accurate analysis of process samples in the field, providing measurement verification to the industry standard DPD method. Lightweight yet robust, the waterproof EZTest 100 is supplied ready to use in a carrying case with key accessories.