Why Do You Need To Measure The Concentration Of Chlorine Dioxide?

The manufacture of ClO2 involves cost and monitoring the levels of ClO2 produced, validates the reaction for cost and safety reasons.

Chlorine Dioxide Controller – DioSense HR

Q: How Is Chlorine Dioxide Solution Made?

ClO2 in water is typically made by reacting sodium chlorite with another chemical, such as hydrochloric acid, although there are other methods using sodium chlorate as the starting chemical. In addition ClO2 can be made using the electrolysis of sodium chlorite.

Online Chlorine Dioxide measurement in water gets increasingly difficult as the concentrations increase. DioSense HR (High Range) is a new, photometric measurement of chlorine dioxide in water from 0-3500mg/L (0-0.35% ClO2). The DioSense HR works by shining a light of a particular wavelength through a continuously flowing water sample and the amount of light absorbed is proportional to the concentration of chlorine dioxide in the sample.

Easy To Install with Built In Control Options

The DioSense HR is designed to be installed in a flow through T fitting allowing for simple installation. When coupled with a CRIUS^®4.0 controller, with its built-in control options and its data collection and reporting capabilities, the DioSense HR is probably the worlds most capable online analyser sensor combination.

The DioSense HR is an optical sensor that uses the principle of Beer Lamberts law to relate the concentration of the chlorine dioxide in a water sample, to the absorption of light in a particular wavelength. The sensor is temperature dependent but that dependency is compensated for with an integral temperature measure.

Pi’s chlorine dioxide analysers are designed to have reduced maintenance, reduced calibration and reduced spares requirements. The DioSense HR is no exception. With no reagents or consumables, the high range chlorine dioxide sensor has an extremely low cost of ownership.

Chlorine Dioxide in Water Sensor 0-3500mg/l (0-0.35%)

Low purchase cost
Low cost of ownership
Stable and reliable
Bufferless
Reagentless

Chlorine dioxide is a gas that can dissolve in water to make an effective biocide solution.

ClO₂ in water is typically made by reacting sodium chlorite with another chemical, such as hydrochloric acid, although there are other methods using sodium chlorate as the starting chemical.

In addition ClO₂ can be made using the electrolysis of sodium chlorite.

The manufacture of ClO₂ involves cost and monitoring the levels of ClO₂ produced, validates the reaction for cost and safety reasons.

Yes. Many sensors are affected by temperature and the DioSense HR 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 dioxide 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 chlorine dioxide keeps the sensor clean, however in very dirty solutions it may be necessary to clean the sensor occasionally.

Yes. The measurement is based on the absorption of light and bubbles in the way will affect the reading. If you mount the sensor so the ClO₂ flow path is vertical then bubbles will be pushed out by the flow.

Document	Type	Size
DioSense HR	Brochure	650kB

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