Online Chlorine Dioxide in Water Controller – DioSense
How is chlorine dioxide in water measured online? Online, continuous Chlorine Dioxide Analyzers and Controllers make up the DioSense range, which utilizes the best and most recent chlorine dioxide sensors available worldwide.
The DioSense chlorine dioxide sensors are membraned electrochemical sensors that don’t respond to chlorine, use no reagents, are incredibly stable and have less maintenance and reduced maintenance costs.
ClO2 is often used in challenging environments where sample preparation is key to making the sensors work reliably and for a long time between maintenance. Pi specializes in sample preparation.
The DioSense Residual Chlorine Dioxide Analyzer is used in numerous applications, wherever the residual ClO2 is controlled to ensure effective disinfection.
Pi’s chlorine dioxide analyzers are designed to have reduced maintenance, reduced calibration and reduced spares requirements. Often used to control both chlorine dioxide generators and also the levels of residual chlorine dioxide in water, DioSense is suitable for all applications in all industries.
Chlorine dioxide monitors are often used to monitor the residual ClO2 in difficult ‘dirty’ applications such as in hospitals or the food industry. In these cases, in order to maintain an appropriate chlorine dioxide residual it is necessary to automatically clean the sensor using the AutoFlush.
If you think your application could need the AutoFlush, please contact us and discuss it with our experienced technical sales people.
| Document | Type | Size |
|---|---|---|
| DioSense | Brochure | 675kB |
| Chlorine Dioxide Measurements – A Technology Review | Article | 625kB |
| Using Open Flow Cells with Membraned Sensors | Technical Note | 762kB |
| DPD Checklist | Technical Note | 487kB |
| Probe Fouling | Technical Note | 459kB |
FAQs
How is chlorine dioxide different to chlorine?
Although it contains the word ‘chlorine’, there are distinct chemical differences between chlorine dioxide and what is normally referred to as chlorine disinfectant (hypochlorite).
If I need help with a chlorine dioxide measurement application, what should I do?
We have many years of experience with chlorine dioxide applications at Process Instruments. If you are in any doubt, please do not hesitate to contact us via phone or email; details can be found on the ‘Contact Us’ page.
Why should I use chlorine dioxide for water treatment?
While chlorine disinfectant is used the world over and is effective at maintaining drinking water safety, chorine dioxide does have a number of advantages:
- It is possible to generate chlorine dioxide on site, making transport and storage unnecessary.
- Because chlorine dioxide disinfects via an oxidative reaction rather than a chlorinating one, disinfection by-products are not produced. This avoids the presence of compounds such as trihalomethanes (THMs) which have been linked to an increase risk of cancer.
How should I use chlorine dioxide for water treatment?
When surface waters have taste and odor problems, chlorine dioxide can be an ideal primary disinfectant. Effective at concentrations as low as 0.1ppm and across a wide pH range, chlorine dioxide effectively penetrates bacterial cell walls to rapidly cause cell death. Industrial water applications (e.g. hot water loops, food washing) often use chlorine dioxide because of this.
Is chlorine dioxide dangerous?
Chlorine dioxide, when stored and handled properly, is perfectly safe to use. Like many disinfectant chemicals, chlorine dioxide has the potential to be harmful; this is what makes them effective at their intended purpose, and so prolonged exposure, contact or consumption is to be avoided.
Is chlorine dioxide harmful to the environment?
It is appropriate to consider chlorine dioxide as environmentally friendly, as it effectively eliminates bacteria and doesn’t produce some of the harmful by-products associated with chlorine disinfection.
How should chlorine dioxide be stored?
Chlorine dioxide solutions should be stored in the absence of light, in an airtight container and at low temperatures (around 5°C). Under these conditions, solutions around 1% (10g/l) can be stored safely for several months with only a small change in concentration.
How do you make chlorine dioxide?
Chlorine dioxide can be generated electrochemically, or chemically with either sodium chlorite or sodium chlorate.
Is chlorine dioxide expensive?
The cost of chlorine dioxide will depend upon the method used to generate it and the price of the chemicals used (sodium chlorite or sodium chlorate). While the equipment used for chlorine dioxide generation is less expensive compared to that for other options, chlorine dioxide has a greater cost than chlorine. However, for some applications chlorine dioxide is more appropriate, and so end users choose ClO2 for its different properties.
Is a chlorine dioxide monitor the same as a chlorine dioxide analyzer or a chlorine dioxide controller?
The terms ‘monitor’ and ‘analyzer’ are basically interchangeable and refer to an instrument that can measure/display certain parameters. A ‘controller’, as the name suggests, refers to an instrument that also has onboard control functionality. All Pi systems can have this functionality, and so a DioSense can be considered a monitor/analyzer and also a controller.
"The Pi products provide excellent value for money and represent the best municipal drinking water analyzers available."
John Clark
Chemtrac - Atlanta
"The support from Pi and its partners is superb. They go above and beyond to ensure that, not only is their equipment perfect but that the process is working great too. Five Stars!"
Anthony Glitto
Equip Solutions - Illinois, USA
"Going from ORP control to amperometric chlorine sensor control has undoubtedly improved the pool water immensely!"
Chris Tedeschi
Link Automation - USA
"We've been using these analyzers since 2008. They're easy to use and very stable. Calibration and maintenance is quick and simple."
Lloyd Gruginski
Chehalis WTP - Chehalis, WA
"We at Scottish Water have been using the excellent Pi LabSense 3 and portable UV254 instruments in the field for optimizing our Water Treatment processes for some years now. We find them easy to use and invaluable for detecting and resolving issues in a timely, efficient and effective manner. Two great pieces of kit!”
Paul Weir
Scottish Water - UK
"I want to thank you and all at Process Instruments for all the assistance, information and handholding during the year. The help that was so freely given was very much appreciated. Can you please extend my appreciation to all at Pi and let me wish you all a happy, safe and wonderful Christmas and I look forward to working with you again in 2021."
Michael Bailey
Wexford Co. Co. - Ireland
"Excellent level of support and always so much more prompt than a lot of our suppliers."
Phill Tuxford
Detectronic - UK
"The plant can’t produce good quality water without the CoagSense."
Mick Murphy
Wexford Co. Co. - Ireland
"We started using Process Instruments 10 years ago and they worked so well that when we were looking at expanding, Process Instruments were our "go to" company."
Rebecca - Pool Manager
Woodland Spa - Burnley, UK
"We've been installing pools and spa controllers from Pi for more than 10 years and they just are the best on the market."
Dr. Lester Symmonds
Pool Sentry - UK
"We've used the CRIUS® with chlorine, pH and conductivity sensors for several years and confirm quality, performance and reliability has been wholly satisfactory to date."
David Kerr
Karis Technical Services Ltd. - UK
"We in ECM ECO Monitoring can only recommend Process Instruments products and services to all other potential clients. They have very complex portfolio of products for water quality monitoring in various types of industries, friendly attitude, very quick delivery time and prompt reaction to all our needs and inquires. Our clients especially appreciate the particle counters and sizers allowing identification of drinking water treatment problems. The Streaming Current Monitors are a great tool for optimisation of expensive chemicals.”
Branislav
ECM ECO Monitoring - Slovakia
"Simply the best turbidity available."
John Clark
Chemtrac - Atlanta, GA
"In 2019, we purchased 29 particle counters which were installed in our water plants. So far, their performance has been perfect."
Li Yongjun
Jinan Hongquan Water Company - China
"We have installed hundreds of ozone analyzers from Pi over the years. They are just accurate, reliable and require low maintenance."
Jiao Tumei
Qingdao Guolin Environmental Technology Co., Ltd., - China
"Over the last few years we've purchased chlorine and turbidity analyzers from Chemtrac and with routine calibration the probes measure the chlorine and turbidity without any issue. We are very happy with this product and would highly recommend them."
Daniel "Buck" Owen
Ocoee Utility District - Ocoee TN
“Servicing customers is much more than just solving problems or addressing complaints and Pi does that very competently with technical and quick efforts providing a good experience."
Clovis Tuchapski
Buckman - Latin America
"Pi's technical team has enabled us to be one step ahead of our competitors by adding value to our projects thanks to their fast and excellent support from the moment you first reach out.
Ibrahim Kaplin
Thermomed - Turkey
"The Streaming Current Monitor from Pi is the best SCM I have ever used. The analyser responds quickly and has many powerful functions, which helps me save a lot of money."
Ye Yancong
Xiamen Xishan Water Plant - China
“Process Instruments has a broad range of high quality and user-friendly solutions for water-industry problems. The short lead times and great customer support make Pi a reliable partner.”
Péter Szabó
SC KATALIN NOHSE CHIMIST IMPORT SRL - Romania
"Process Instruments UK always have a high level of customer service. All our interactions with Pi have exceeded our expectations. It is always a pleasure working with you.”
Iñaki Seisdedos Rodríguez
Izasa Scientific - Spain
"Process Instruments UK always have a high level of customer service. All our interactions with Pi have exceeded our expectations. It is always a pleasure working with you.”
Rudi Tuffek
Allpronix - South Africa
Ho bisogno di aiuto?
Daniel Nearney
Contatto sede centrale
Tel: +44 (0)7908 765113
daniel.nearney@processinstruments.net
