Non-Membrane Disinfection Sensor

Disinfection sensors are used to detect the level of oxidisers in water treatment processes

Types of disinfection sensors and what they measure:

Chlorine sensors: Our chlorine sensors measure a wide range of concentrations of chemicals in water, and indirectly help prevent the growth of microorganisms. This is done without the use of reagents. These amperometric chlorine sensors can be used with all of our controllers for chlorine residual measurements in accordance with EPA Method 334.0.

Chlorine dioxide sensors: These are specialised sensors used to measure the concentrations of chlorine dioxide in water.

Stabilised bromine sensors: The sensors continuously and directly measure the chemical concentration, without the use of reagents. These sensors can work effectively even where ORP sensors and other amperometric sensors cannot reliably and repeatedly measure bromine that is stabilised with sulfamate. These are amperometric 3-electrode sensors and are widely used for cooling tower applications. They can withstand temperatures up to 45 °C (113 °F) and pressure up to 90 psi.

Total Chlorine: Our total chlorine sensors use microporous, hydrophilic membranes that allow measurement of all chlorine molecules, free or combined.
Peracetic Acid: The peracetic acid sensors are frequently used in food processing applications and can measure up 20,000 mg/l in water with a pH below 6.

Non-membrane sensors are used for the disinfection of hot potable water systems as currently required by the new ASHRAE standards of up to 70 °C (158 °F) in hospitals, schools, universities. The sensors support high pressure sample loops where the water cannot be discharged to open atmosphere (up to 8 bar (117 psi)) such as hot tubs and cooling towers.
  • Free Chlorine and ClO2 sensors
  • Designed for higher pressure and temperature, clean water applications
  • Amperometric 3-electrode sensors
  • The measuring and counter electrodes are in direct contact with the sample
  • The reference electrode is isolated from the water by an electrolyte-filled housing

Key benefits:

Various chemicals such as chlorine and bromine are used in specific limits in water treatment. However, if used in large or insufficient amounts they may affect human health. There are various types of disinfection sensors that can successfully detect the level of a number of chemicals. Amperometric disinfection sensors offer a cost-effective and reliable solution to your disinfection control requirements.

The sensors are compatible with Walchem controllers, and continuously and directly measure the chemical concentration, without the use of reagents.

Sensors have varying ranges of concentration, for free chlorine/bromine, total chlorine, chlorine dioxide, ozone, peracetic acid and hydrogen peroxide. Whether the application is a cooling tower, food and beverage, drinking water, wastewater, or swimming pool, these sensors are the ideal solution.

  • Low maintenance – no costly reagents or tubing to replace
  • Broad range of applications – wide variety of oxidizers and measurement ranges
  • Fast response – continuous measurement technique
  • No waste – the sample can be returned to the process

Categories of Disinfection Sensors:

Sensors are available with and without membranes to detect varying ranges of concentration of chemicals such as free chlorine/bromine, total chlorine, chlorine dioxide, ozone, peracetic acid, chlorine gas, sodium hypochlorite, calcium hypochlorite, stabilised bromine products, and ozone among others.

Non-membrane sensors: Non-membrane chlorine and chlorine dioxide sensors that comprise an amperometric sensor assembly, cable, and a flow cell. They measure the disinfectant level in drinking water. The disinfection of hot potable water systems as currently required by the new ASHRAE standards is up to 70 °C (158 °F), especially for hospitals, schools, and universities.

Downloads

Key Features of Non-Membrane Sensors:

Here are some benefits of using non-membrane sensors, especially for chlorine applications and high pressure sample loops where the water cannot be discharged to open atmosphere:
  • These sensors are extremely efficient when measuring free chlorine and ClO2 levels in drinking water.
  • Non-membrane amperometric chlorine sensors can be used for chlorine residual measurements in accordance with EPA Method 334.0.
  • An electrical signal which is proportional to the concentration of the disinfectant is generated at the measuring electrode. The measuring signal is temperature compensated.
  • Amperometric sensors perform best in drinking water or any clean water application with near neutral pH, and are typically used in higher pressure and/or temperature installations.
  • These are amperometric 3-electrode sensors, wherein the measuring and counter electrodes are in direct contact with the sample.
  • These sensors can withstand pressure up to to 8 bar (117 psi).
  • The reference electrode is isolated from the water by an electrolyte-filled housing.

Typical applications:

If you need to measure the chemical levels in your process or even drinking water, these disinfection sensors are extremely useful. They're an integral part of our water treatment controllers.

We can provide various types of disinfection sensors that can be integrated to water treatment controllers as part of an effective water treatment process. These can be customised to suit specific client requirements.
Here are some application areas of our disinfection sensors, depending on their type:
  • Drinking water
  • Food processing
  • Reuse and process water
  • Swimming pools
  • Cooling towers
  • Bottle washing

Alternative products

Pyxis: ST-765ss

Alternative product advice needed?

Request

Support

Custom build solutions

Redefine simplicity and flexibility in cooling tower solutions with our plug-and-play service that delivers rapid installation.

We offer standard layout that serves as a solid foundation but we can be customise to meet the unique needs of any client site. We tailor the build to achieve optimal performance.

Our custom builds are popular as a comprehensive solution that's wired and seamlessly integrated meeting any site requirements. Email us today to learn more about our bespoke custom built solutions to speed up your installation and reduce operation or project downtime.

Training

We specialise in delivering tailored product training to empower your team and enhance operational efficiency. Whether you prefer on-site sessions, at your company's location or the convenience of video conferencing, we've got you covered.

Our focus revolves around installation best practices, ensuring seamless product connectivity, and optimising maintenance procedures. Take the first step towards maximising your team's potential. Email us today to learn more about our bespoke training offerings, check availability, and embark on a journey to enhance your team's expertise.

Request support

Follow us on LinkedIn

Sensys Ltd

Head Office
Unit 9 Pond Close
Walkern Road
Stevenage
Hertfordshire
SG1 3QP
United Kingdom

01438 759 595
enquiries@sensys.co.uk

Join our mailing list

Sensys icon

Enquire Now