Measurement
Total chlorine: free and combined chlorine in the water.
Halogen MP Total
Black self-cleaning chlorine monitoring for the total residual in your water.
Follow total chlorine with MP Total.
Total chlorine includes free chlorine and combined chlorine. Choose the black MP Total sensor when the total residual is the measurement your operators need to follow.
Continuous self-cleaning and reagentless measurement support routine monitoring. PMA will confirm the total-chlorine model, range and suitability for your water chemistry, then match the installation, D20 controller and site outputs.
Cleaning built into the measurement
A small motor drives a magnetically coupled impeller. Its movement circulates water at the sensing end and agitates cleaning beads across the measuring surfaces.
The beads help keep the electrodes and pH element clean while the sensor works. Electrochemical cleaning supports the mechanical action. There are no analysis reagents to replenish and no sensing membrane or electrolyte to replace.
This local movement supports measurement at low bulk-flow velocities. The sensor still needs representative water, a suitable installation and planned reference checks.
Built for demanding water conditions
Iron-rich water can leave heavy deposits on a sensor. Halogen’s continuous self-cleaning helps keep the measuring surfaces working, reducing routine cleaning in challenging conditions.
These photographs show an MP5 after five months in high-iron borehole water, without cleaning, recalibration or other intervention during the published trial.
Discuss your application
Plan your total-chlorine measurement
Sensor selection
Confirm the total-chlorine variant and required range with PMA.
Self-cleaning
Integrated cleaning helps keep the measuring surfaces clear during operation.
Water conditions
Provide expected residual, pH, conductivity, temperature and pressure.
Installation
Choose a representative monitoring point and appropriate mounting accessories.
Power and data
Review D20 integration, available power, site signals and planned reference checks.
A clean sensor still needs a representative location
At a works, decide whether the reading is intended to describe a particular treated-water outlet, a blend or another process point. At a reservoir, relate it to the inlet, outlet or immersed location.
Choose a flow cell, in-pipe fitting or immersion arrangement that suits the sensor variant. Include isolation, drainage, sample transit time and maintenance access in the site review.
Applications for UK water operators
Practical guidance for choosing the monitoring point and using the resulting trend.
Chlorine residual at treatment works
Follow a defined treated-water point, reference checks and signal quality.
Reservoir chlorine monitoring
Connect residual trends to inlet, outlet and storage operating conditions.
Chloraminated-water monitoring
Keep monochloramine and free-chlorine trends in a clear investigation record.
Review the technical requirements
PMA will confirm the model-specific total-chlorine specification and compatible controller for your application.
Choose the residual your process needs
Free chlorine, total chlorine and monochloramine answer different monitoring questions. Total chlorine includes free and combined chlorine; a monochloramine measurement follows one specific combined-chlorine species.
Your questions, answered
What does total chlorine include?
Total chlorine includes free chlorine and combined chlorine in the water. MP Total is the option on this page for operators who need to follow that total residual.
Does total chlorine identify monochloramine?
A total-chlorine value does not identify monochloramine on its own. Monochloramine is one specific combined-chlorine species; agree the measurements and exact sensor variant with PMA.
Does reagentless mean no maintenance?
No. The sensing approach avoids analytical reagents, membranes and electrolyte, but the installation still needs planned reference checks, inspection and model-specific servicing.
How does self-cleaning work?
A motor-driven impeller circulates water and moves cleaning beads across the measuring surfaces. Electrochemical cleaning supports the mechanical action during operation.
Which mounting arrangement is suitable?
Review an appropriate flow cell, in-pipe fitting or immersion arrangement for the supplied variant. Include representative water, isolation, drainage and maintenance access in the site assessment.
What should be agreed with PMA?
Confirm the total-chlorine model and range, water chemistry, monitoring location, power and site signals. PMA will then review the compatible controller, mounting accessories and verification plan.
Looking after your world since 1971
PMA connects the measurement, installation and operating team. We help you review the application, select suitable instrumentation and plan commissioning, training and ongoing service.
Build your system
Start with your water chemistry. Choose the installation and connections, then see how your sensor and controller work together.
Self-cleaning. Reagentless.
Choose a sensor to begin
Find the right fit for your water.
Tell us about your disinfectant, water chemistry and installation. PMA can help you work through the sensor, controller and integration requirements.
Start a conversation.
01484 843 708sales@pma.uk.comBrook Mills House, Carr Lane
Slaithwaite, Huddersfield, HD7 5BG