Tytronics® Sentinel

Online Chemical Analysis and Monitoring of Potable Water & Wastewater

Accuracy, reliability, and long-term value.

Chemical analysis from PMA Ltd. Multi-stream capability (six maximum) to enable monitoring for the same chemical parameter at different concentration ranges with a single analyser. Our complete online chemical analyser is capable of both process chemical analysis and the monitoring of potable water and wastewater.


The Tytronics® Sentinel is the first on-line analyser capable of both process chemical analysis and the monitoring of potable water and wastewater. Offering an unmatched performance to-price ratio, the Tytronics® Sentinel provides measurement qualities and accuracies simply not seen before. There is built-in reliability, thanks to a simple and patented sample capture system and wide-bore tubing. This is an analyser that can handle difficult and dirty samples.

Featured Article

Alkalinity Monitoring in Wastewater

The Tytronics Sentinel Titrator was designed specifically for wastewater samples; hence it is less prone to blockages, downtime and high maintenance cost than clean water analysers and all without filtration.

Optimised Industrial Processes

Simple menu-driven operation and a modular design make the Tytronics® Sentinel easy to use and maintain. A user with little chemical background can use the analyser with minimal training. Simple step by step instructions are displayed to guide the operator through the procedure to complete a calibration and to set the unit in the automatic analysis mode.

Industry leading chemical analysis

Ideal Industries and Applications

  • Chloro-alkali analysers, brines,  Cyanide, thiocyanate, formaldehyde, copper, silica, chromium 3+, total chromium, urea, hardness, Nickel
  • Polymer production
  • Effluents
Food & Beverage
  • Food-process monitoring, hypochlorite, chlorine
  • Effluents
Municipal Water & Wastewater
  • Drinking / potable water − alkalinity, aluminum, chlorine, colour, copper, fluoride, hardness, iron, manganese, nitrate, nitrites, phosphates, zinc
  • Wastewater – alkalinity, ammonia, cyanide (free), Iron, nitrates, phosphate, zinc
Natural Gas Processing
  • Amine analysis − concentration, sulfide gas loading, total acid gas loading
Oil & Refining / Petrochemical
  • Acidity of hydrocarbon samples
  • Amine analysis − concentration, sulphide gas loading, total acid gas loading
  • Boiler waters
  • Process monitoring
  • Effluents
  • Wastewater – copper, nickel, chromium, cobalt Silver, and other metals
  • Silica, Hydrazine, Phosphate, Chloride, Sulphate, Chlorine in Seawater, Bromine
Pulp & Paper
  • Paper coatings
  • Wastewater
  • Etch – hydrogen bromides, hydrogen chlorides, hydrogen fluorides, hydrogen sulphides
  • Process water – acidity, alkalinity, Silica
  • Wastewater − Acidity, Copper, Sulphides, Fluorides, chlorides, bromides
  • Control plating operation – copper
Steel Manufacturing
  • Plating operation control
  • Effluents



Alkalinity Analysis on a Wastewater Treatment Plants

The concentration of Alkalinity in Sewage samples containing Ammonia/Ammonium is very important for correct Nitrogen removal via Nitrifying bacteria. Alkalinity is consumed in the conversion of Ammonia/Ammonium to Nitrate during the nitrification stage of treatment.

Because most waste waters contain eco harmful Phosphates it is common also to remove phosphorus by use of Ferric or Alum salts. These solutions are highly acidic and hence can strip the natural Alkalinity from the waste samples. To combat this, most plants that dose P removal chemicals will also dose Caustic or Lime to balance the pH value of the sample, and restore some of the lost Alkalinity prior to Ammonia removal.

How is Alkalinity measured?

Alkalinity (Total) in water is the sum of its Hydroxide/Carbonate/Bi-carbonate ion content. The classical detection method involves Titrating to pH 4.3 a known volume of the sample with dilute acid of a given strength, until all of the Alkalinity species in the sample have been neutralised. This detection method is generally unaffected by solids in the samples.

Measurements on line?

Find out more about how the Tytronics Sentinel Process Titration can help you.

The SENTINEL is also available to measure IRON or PHOSPHATE in the same samples.

Award-winning focus on delivering world-class customer service, no matter where you are located.

The IUG award is a prestigious honour that serves to recognise our commitment to our clients and is a testament to the hard work and devotion which our experienced team has.

Knowledgeable, experienced staff

Our team of dedicated field support group technicians are vastly experienced in applications and installations.  We therefore appreciate and understand how analysers work, why they were installed and what data they typically ought to produce.

Our experience, your world

We have the capability of repairing, servicing, troubleshooting or maintaining any analyser that you own and operate. We have over 43 years experience in the supply and support business for instrumentation in all industry types.

Spare and replacement parts?

Scroll down to use our contact form to enquire about spare and replacement parts. If you do not know the part number or name for a required spare part please simply describe the spare part. Our team of expert engineers are here to help.

Here to support you, nationwide.

With field engineers strategically located throughout the UK, we have the ability to deliver an outstanding customer service solution. Our engineers are capable of undertaking a wide range of tasks that require a competent, patient, technical and experienced mind to exceed your expectations.

Requesting technical documents?

Submit your details at the bottom of this page and your request will be processed immediately by our team of engineers at PMA. For technical documents please ensure to include details about your application so that our team can deliver a bespoke document for your specific requirements.

One of the keys to Galvanic Applied Science’s leadership in on-line analysis, is our commitment to consistent and accurate methodology — colorimetry, ISE, colorimetric or potentiometric titrations. Galvanic’s Sentinel™ analysers are easy to operate and maintain, even by novice users. With our expert support team to assist you with custom-configuration and training, you can be assured that your measurements of acids, ammonia, bases, metals, nitrate, phosphate, etc., are always precise … and cost-effective.

Whether you are currently analyzing or monitoring liquids, or looking to do so, the Tytronics® Sentinel is your first choice in on-line analysis or monitoring.

Need some advice or support? We’re here to help.

If you need a call back about how Process Measurement and Analysis can help you or have any questions at all please feel free to contact us at [email protected].  A member of our experienced team will contact you directly.

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