With wastewater or drinking water management, or for food processing, water quality and accurate chlorine levels are vital. The Thermo Scientific™ Orion™ Chlorine XP water analyser is designed to provide accurate, stable, multi parameter measurements all with minimal maintenance in the one unit. Design features help minimise the need for periodic cleaning and calibration, and offer compatibility with many applications and disinfectant processes. The XP utilises an optical DPD-reagent based measurement technology that can be configured to use the least amount of reagents while maintaining outstanding accuracy.

Reliable measurement for many applications

The Chlorine XP analyser provides reliable real-time chlorine measurement with features to suit clean water and dirty water alike. For potable water plants that do not operate 24 hours a day, the Chlorine XP will detect a loss of flow and “pause”. This will save on reagents, and avoiding spurious incorrect readings and nuisance operator call-out alarms until the flow is re-established.

For wastewater applications with turbid or coloured effluent, the analyser’s auto-clean function ensures that the measuring cell is cleaned after each measuring cycle. This provides reliable results without the need for manual intervention. As an added benefit, the Chlorine XP can measure free chlorine, total chlorine and pH in the one analyser, reducing the cost and need for multiple instruments.

In food and beverage industries with water treatment that uses reverse osmosis (RO), measuring the absence of chlorine prior to the water entering the RO membranes is essential to protect membrane integrity. The Chlorine XP analyser provides low level measurement (10ppb) without the potential detection delay experienced by some technologies such as amperometric probes.

Low maintenance and cost efficient

The Chlorine XP’s measuring cycle interval is flexible and can be set to suit the application, from two minutes to ten minutes, allowing the cost of reagents to be optimised. With a cycle that is under five minutes, you can start the unit and potentially come back eight weeks later to change the reagents. A “low reagent” alarm also helps monitor reagent levels. The “dry” electronics section is separated from the “wet” section, which assists with avoiding internal corrosion problems; coupled with light source self-calibration, these features support a long instrument life.

For more information, visit, or call 1300 735 292.

Lauren ‘LJ’ Butler is the Assistant Editor of Utility magazine and has been part of the team at Monkey Media since 2018.

After completing a Bachelor of Media, Communications and Professional Writing at the University of Wollongong in 2014, and prior to writing about the utility sector, LJ worked as a Journalist and Sub Editor across the horticulture, hardware, power equipment, construction and accommodation industries with publishers such as Glenvale Publications, Multimedia Publishing and Bean Media Group.

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