Chlorine Analysers For Residual Chlorine Monitoring – HypoSense
What is the best way to monitor the chlorine content of bleach online?
- Easy to install – the HypoSense is an optical measurement where light is shone into the sample and the amount of light absorbed is proportional to the amount of chlorine in the sample. This means that it is easy to install inline in a flow through fitting.
- Easy to use – for processes that require knowledge of the chlorine level in bleach such as in the Monochloramine (MCA) manufacture, the HypoSense is easy to use and get the best possible control, allowing the user to match the hypo dose to the MCA ammonium precursor using feed forward control available in the CRIUS®4.0.
- Easy to own – any process requiring a known amount of chlorine in sodium hypochlorite can benefit from a HypoSense. With calibration done via the front panel of the CRIUS®4.0, with temperature compensation built in and with no user serviceable parts, the HypoSense is particularly easy to own.
OCl– absorbs light at a particular wavelength with the amount of absorption being inversely proportional to the concentration.
This is true of all light absorbing chemicals in water and is described by Beer Lamberts Law.
In HypoSense a light is transmitted through the sample and the less light that reaches a detector at the other side from the light source, the higher the concentration of chlorine in the sample. The addition of inbuilt temperature compensation provides for enhanced accuracy when temperatures vary.
Chlorine in Sodium Hypochlorite Sensor 0-16%
- Low purchase cost
- Low cost of ownership
- Stable and reliable
- Bufferless
- Reagentless
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- Continuous online monitoring for chlorine in industrial bleach
- Feed forward control in the manufacture of Monochloramine (MCA)
- End point control in the manufacture of Sodium Hypochlorite
When coupled with the CRIUS®4.0 controller, with its remote access and built-in control capabilities, the HypoSense becomes an extremely powerful tool.
Sodium Hypochlorite is chemical NaOCl or NaClO. It is an unstable chemical that is normally stabilised with Caustic Soda or NaOH.
Bleach is the common name given to Sodium Hypochlorite. It is most commonly used in disinfection processes.
Industrial bleach is a solution of sodium hypochlorite and sodium hydroxide typically with up to 16% active chlorine.
Industrial bleach decays over time and so the amount of chlorine in the bleach changes.
Yes. Many sensors are affected by temperature and the HypoSense is no exception. Temperature is measured inside the sensor and the compensation is applied in the sensor ensuring the best measurement possible.
This depends on the application. The online chlorine sensor has a very low drift so most people calibrate it either once a week, once a month or even every six months.
Typically no maintenance is required as the bleach keeps the sensor clean, however in very dirty bleach it may be necessary to clean the sensor occasionally.
Yes. It is really important to mount the flow path vertically. In this orientation, any bubbles get dislodged by the flow of the sample.
Document | Type | Size |
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HypoSense | Brochure | 762kB |
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