Open up a new world of chlorine analysis

Chlorine is key to water treatment around the world. Getting the dose right is essential to stay safe and comply with regulations. This demands accurate and dependable measurement solutions, which can be costly and time-consuming. But ABB’s new chlorine management range is changing that – making maintenance quick and easy.

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Introducing ChloroStar™ - Chlorine measurement made easy!

The ChloroStar™ family of chlorine analyzers can be installed, operated, and maintained more easily than ever before. With features like EZLink™ technology, durable membrane technology, self-cleaning electrodes, modular installation, and wireless access via a mobile device, the solutions make water treatment smarter and more efficient.

ChloroStar™ Sensor

Take next-generation digital measurements

The ChloroStar™ tri-electrode chlorine sensor offers a resilient, plug-and-play design that’s easy to install. Offering measurements for free or total chlorine with in-built pH compensation for added accuracy, it’s easy to use and low-cost to maintain.

Key features

Measurement: Free chlorine, total chlorine
Measurement range: 0 to 20 mg/l (ppm)
Sample pH: 4 to 11
Sample flow rate: >1 l/h (0.26 galUS/h)*
Approvals: CE, ATEX/IECEx

* For flow rates <10 l/hr (2.6 galUS/h) the steady flow stirrer module is required.

ChloroStar™ Cell

Fast reaction direct-contact electrode sensor

The ChloroStar™ Cell has a unique open-cell flow-through design that uses the sample flow to continuously clean the electrodes preventing blocking and clogging.

Key features

Measurement: Free chlorine, chlorine dioxide, total chlorine*
Measurement range: 0 to 20 mg/l (ppm)
Sample pH: 4 to 7.5*
Sample flow rate: 60-75 l/h (0.26-0.33 galUS/min)
Approvals: CE

* For waters with high (>8 pH) or variable pH levels or for total chlorine measurement an additional buffer is required.

InFlow Multi-Cell

Designed for a range of different sensor types

InFlow Multi-Cell ensures consistent flow in applications with variable and low flow rates with this device. Measurement accuracy and stability are preserved at the lowest flow conditions, enabling users to conserve water.

Key features

Loss of sample alarm prevents sensors from drying out and needing replacement
‘U’ shaped flow cell holds sample in the event of sample loss
Easy access ports on the bottom for cleaning

AWT420 Transmitter

Dual-channel transmitter with EZLink™

The AWT420 smart digital transmitter features auto pH correction, with built-in Bluetooth™ connectivity and ABB’s EZLink™ Connect mobile app giving easy and immediate data access.

Key features

Dynamic QR assistance
Dual-sensor validation
Dual PID control

EZTest 100 Chlorine

Make veri?cation quick and easy

The EZTest 100 Chlorine on-site chlorine handheld calibrator makes verification simple. One-time zero function allows users to keep the calibration factors without having to adjust the zero prior to each measurement.

Key features

Fast, accurate verification in the field for improved measurement accuracy
Convenient all-in-one travel case with device, reagents, measuring vials and cleaning accessories

Your challenges, our solutions

Here’s how ABB’s chlorine measurement range can help you.

Your challenge:

Minimizing the amount of water required for sample testing, yet making sure that your measurements are accurate, repeatable and dependable.

Our solution:

The ChloroStar™ Sensor with InFlow Multi-Cell can handle ultra-low flow rates when equipped with the Steady Flow adaptor. So you can take measurements below 1/h (0.26 galUS/h) with no danger of drifting.

Your challenge:

Chlorine monitoring is notorious for drifting which causes headaches for operation and maintenance crews, costing you time and money.

Our solution:

The ChloroStar™ Sensor has three electrodes to compensate for measurement drift. It also has a protective membrane that keeps the electrodes free from fouling and working effectively.

Your challenge:

You want to boost your process efficiency with data-driven insights, but you’re feeling the strain of having to regularly service a growing number of instruments.

Our solution:

ChloroStar™ analyzers offer reagent- less operation that doesn’t need refurbishing for at least 3 months. Freeing you up to focus on other maintenance tasks.

Your challenge:

Your process conditions are prone to change unexpectedly, so you need to be able to adapt fast – now and in the future.

Our solution:

The AWT420 dual-channel transmitter is modular, so you can easily expand its functionality at any time. It also works with a wide range of sensors and is simple to scale.

Your challenge:

When it comes to support, you need the right information fast to ensure your process is continually operating at maximum efficiency.

Our solution:

Get a wealth of knowledge in the palm of your hand with the EZLink™ Connect App for your smartphone. This includes real-time data as well as supporting information for all devices.

How can we support your organization?

Here are some of the ways our chlorine management tools can benefit your industry.

Sensor or Cell?

Find out which sensor is right for your needs

You need the
Sensor if...

The ChloroStar™ Sensor has a membrane covering, making it ideal for:

Drinking water disinfection
Distribution monitoring
Power plant and industrial water cooling

This smart digital sensor is designed for use with our InFlow Multi-Cell, allowing a number of sensors to be connected in series for a true plug and play measurement solution.

The membrane-covered design makes it ideal for measuring either free or total chlorine without the need for any additional sample buffering – even in applications where the pH may fluctuate! Its ability to cope with minimal sample flow makes it ideal for applications such as drinking water treatment or distribution.

Delivering outstanding measurement stability, this smart sensor is easy to use thanks to ABB’s EZLink™ technology. Combined with the InFlow Multi-Cell, it provides stable measurement independent of variations in sample flow even down to >1 l/h (0.26 galUS/h)*

Key specifications

Measurement: Free chlorine, total chlorine
Measurement range: 0 to 20 mg/l (ppm)
Sample pH: 4 to 11
Sample flow rate: >1 l/h (0.26 galUS/h)*
Approvals: CE, ATEX/IECEx

* For flow rates <10 l/min the Steady Flow module is required.

You need the
Cell if...

The ChloroStar™ Cell measures accurately even when there is a lot of fouling, such as:

Tertiary wastewater applications
High particulate load (sand)
Fruit and vegetable disinfection baths

This compact self-contained chlorine measurement solution comes complete with integral pressure regulation and the ability to directly connect up to two additional sensors. The self-cleaning, open-cell, flow-through design means that it won’t block or clog like other types of sensors, making it ideal for high-fouling applications like wastewaters or when you need to measure chlorine or chlorine dioxide under stable pH conditions*

It offers outstanding reliability and durability thanks to its unique self-cleaning design that uses the sample flow to clean the electrodes, ensuring tip-top sensitivity even in high- fouling applications.

Key specifications

Measurement: Free chlorine, chlorine dioxide, total chlorine*
Measurement range: 0 to 20 mg/l (ppm)
Sample pH: 4 to 7.5*
Sample flow rate: 60-75 l/h (0.26-0.33 galUS/min)
Approvals: CE

* For waters with high (>8 pH) or variable pH levels, or for total chlorine measurement, an additional buffer is required.

This smart digital sensor is designed for use with our InFlow Multi-Cell, allowing a number of sensors to be connected in series for a true plug and play measurement solution.

The membrane-covered design makes it ideal for measuring either free or total chlorine without the need for any additional sample buffering – even in applications where the pH may fluctuate! Its ability to cope with minimal sample flow makes it ideal for applications such as drinking water treatment or distribution.

Delivering outstanding measurement stability, this smart sensor is easy to use thanks to ABB’s EZLink™ technology. Combined with the InFlow Multi-Cell, it provides stable measurement independent of variations in sample flow even down to >1 l/h (0.26 galUS/h)*

Key specifications

Measurement: Free chlorine, total chlorine
Measurement range: 0 to 20 mg/l (ppm)
Sample pH: 4 to 11
Sample flow rate: >1 l/h (0.26 galUS/h)*
Approvals: CE, ATEX/IECEx

* For flow rates <10 l/min the Steady Flow module is required.

This compact self-contained chlorine measurement solution comes complete with integral pressure regulation and the ability to directly connect up to two additional sensors. The self-cleaning, open-cell, flow-through design means that it won’t block or clog like other types of sensors, making it ideal for high-fouling applications like wastewaters or when you need to measure chlorine or chlorine dioxide under stable pH conditions*

It offers outstanding reliability and durability thanks to its unique self-cleaning design that uses the sample flow to clean the electrodes, ensuring tip-top sensitivity even in high- fouling applications.

Key specifications

Measurement: Free chlorine, chlorine dioxide, total chlorine*
Measurement range: 0 to 20 mg/l (ppm)
Sample pH: 4 to 7.5*
Sample flow rate: 60-75 l/h (0.26-0.33 galUS/min)
Approvals: CE

* For waters with high (>8 pH) or variable pH levels, or for total chlorine measurement, an additional buffer is required.

A platform for precision performance

Designed with EZLink™ technology to work the way you want to work, the AWT420 makes chlorine analysis easy. You can build a better connected management system, which sends data direct to your phone using the EZLink™ Connect App. Additional measurements including pH/ORP, conductivity, DO, and turbidity can be added easily via expandable modules to improve your overall water quality control.