Analysers for smart chlorine measurement
ABB has launched ChloroStar, a family of sensors, transmitters and accessories for accurate and reliable chlorine measurement and analysis that enable users in the water, wastewater and other industries to control chlorine more efficiently, enhancing treatment and increasing process uptime.
With the removal of potentially harmful pathogens being critical for both potable and wastewater quality, strict regulations govern chlorination treatment in utility and industrial applications. To date, chlorine measurement and analysis has 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 analysers 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 kept to a minimum.
The ChloroStar comprises two components – the ChloroStar Digital Sensor and the ChloroStar Cell.
The ChloroStar Digital Sensor is an intelligent tri-electrode sensor for the measurement of 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 minimises 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 which delivers stable chlorine measurement independent of variations in sample flow. An industry-leading measurement of 1 L/hr (0.26 gal/hr) makes it suitable 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 the measurement of 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 percent 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 wastewaters.
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 either 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 onnect App. Using Bluetooth connectivity to send data to a smartphone or tablet, users can view and share measurement and audit data rapidly, as well as track the status of maintenance tasks.
The handheld EZTest 100 chlorine photometer gives 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.
