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AccuSeries online titration

Controlled reagent addition and endpoint detection for defined water and process chemistry.

Bring a defined titration method online

Titration determines a result from the measured addition of a standard solution to a representative sample. AccuSeries can automate optical colour titration or potentiometric titration with an endpoint suited to the method and sample.

Define the result as a named analyte or titratable quantity. Free, total and other reporting bases can represent different operating decisions, even where the same process sample is used.

Wall-mounted AccuSeries online chemical analyser overlooking refinery water-treatment infrastructure.

Plan the analytical method

Define the analytical result

State the analyte, reporting units, normal and upset ranges, and reference method.

Match endpoint detection

Review optical colour change or electrode response with the sample matrix, titrant and endpoint.

Validate the programmed sequence

Agree sample volume, dilution, titrant checks, calibration, cleaning and comparison samples.

Typical application reviews

Acid concentration

Review a named acid, concentration range and neutralisation method for process control.

Alkalinity and hardness

Define the alkalinity basis and endpoint, or the appropriate hardness chemistry and units.

Caustic and scrubber liquor

Review direct caustic measurement alongside other constituents affecting the titration.

The selected chemistry, range and preparation must represent the actual sample. Online process information supports the agreed operating decision and verification plan.

Prepare an application review

Share the analyte and chemical form, reporting units, normal and upset range, sample composition, colour and solids, temperature, transport conditions, reference method, required result frequency, number of streams and outputs. Include maintenance access, reagent replenishment and waste handling.

Over 50 years of process measurement experience

PMA has supported process measurement and analysis since 1971. We connect your analytical objective with the sample, instrument, installation and operating team.

Talk to us about application review, commissioning, training, service and ongoing reagent supply.

Resources for your project

AccuSeries brochure

Read the public PMA brochure for the platform, measurement methods, configuration overview and UK support.

View brochure PDF

Specialist AccuSeries guidance

Continue with detailed technical and application guidance on our dedicated AccuSeries website.

Visit accuseries.co.uk

Find a parameter or product

Search PMA’s parameter, product and application finder using your analyte, method or operating duty.

Search parameters and products

Frequently asked questions

Is titration the same as measuring pH?

No. pH describes an electrode response at the sample conditions. A titration uses a defined reagent addition and endpoint to determine a specified titratable result.

Which endpoint can AccuSeries use?

Optical colour change or potentiometric electrode response can be configured where appropriate. The endpoint and calculation must match the analytical method.

What matters when measuring caustic concentration?

Define the caustic reporting basis, range, sample composition and interfering constituents. Confirm the titrant, endpoint and comparison method rather than relying on pH alone.

Continue exploring AccuSeries

AccuSeries analyser overview

Compare the platform, industries, technical overview and public application notes.

View the AccuSeries range

Online colorimetry

Automate a defined colour-development reaction for nutrients, selected metals and other compatible water and process chemistries.

Explore colorimetry

Ion-selective electrode analysis

Match the electrode, sample conditioning and calibration to the target ion and required reporting basis.

Explore ISE analysis

Multi-stream and multi-parameter analysis

Review whether one platform can serve several sample points and analytical duties with a suitable measurement sequence.

Explore multi-stream analysis

Let’s talk about your application.

Speak to the PMA team about your instruments, reagents or service requirements. Tell us what you need, and we’ll help you find the right next step.

  • Advice for your application. Find the right instruments, sensors and chemical reagents for your process.
  • Practical service support. Discuss commissioning, calibration, maintenance or an instrument issue with our team.
  • Clear next steps. Ask a technical question or request a callback, with your site and measurements in mind.
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