Measurements. Applications. Halogen updates from PMA.

The latest thinking. Practical guidance from PMA.

Latest Halogen updates.

PMA colleagues walking alongside water-treatment tanks during a site discussion

Measurement

What is a reagentless chlorine analyser?

Understand reagentless chlorine analysers, amperometric measurement and the difference from reagent-based testing. Compare maintenance and installation needs.

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PMA colleagues comparing project information in a meeting room

Measurement

Free chlorine vs total chlorine vs monochloramine

What is the difference between free chlorine, total chlorine and monochloramine? Understand the measurements before selecting a drinking-water sensor.

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PMA colleague reviewing a wall-mounted D20 display inside a glazed room

Maintenance

Does a self-cleaning chlorine sensor need maintenance?

Learn which maintenance and verification tasks remain with a self-cleaning chlorine sensor, and what to ask about cleaning, wear parts and calibration.

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Halogen D20 mounted inside a light service room overlooking a treatment plant

Installation

Inline, immersion or flow cell: choosing a chlorine sensor installation

Compare inline, immersion and flow-cell chlorine monitoring. Consider sample-water waste, zero-flow duties, response, service access and plant integration.

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Explore the complete set of chlorine monitoring guides, or discuss your application with PMA.

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