ProMinent at ACHEMA 2015 - DULCOTEST® Ozone sensor OZR

June 2015

The continuous monitoring, even in difficult conditions such as long absence of ozone or in contaminated waters, is solved conveniently and reliably with the new amperometric DULCOTEST® sensor OZR from ProMinent.

Reliable monitoring of ozone concentration

Visitors of the ACHEMA 2015 will be able to view the integration of the sensor into a cooling water application on Stand J94 in Hall 8.

The sensor type OZR 1-mA-2-ppm with a measuring range of 0.02 to 2 mg/l is ideal to continuously determine low concentrations of the ozone. For the first time, this sensor type makes it possible to reliably monitor the absence of ozone, for example to display the breaking through the filter for the protection of reverse osmosis membranes. This is accomplished through permanent chemical self-activation of the measuring electrodes by the electrolytes. Due to these properties, OZR 1 is also used in batch processes with/without ozone, for example to treat potable water without occurrence of known problems associated with such sensors, from long run-in periods, necessary recalibration to sensor damage.

The second strength of the sensor type OZR lies in its tolerance against contamination, which makes it ideal for online measurements of ozone in contaminated waters such as cooling water, service water, process water and waste water.

This is ensured by a dirt resistant, poreless silicone membrane, which is permeable to ozone but not for soluble and insoluble components of the water. Cross sensitivities to chlorine do not exist. The sensor can be used with pH values of between 4 and 11 and for temperatures of between 5 and 40°C. The sensor version OZR 1-mA can be connected via a temperature compensated 4-20 mA signal directly to the 1/2 channel ProMinent controllers D1C and DAC as well as via an I module to the multi-channel device DULCOMARIN® II.

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