OZONOTEC EC is an electrochemical Clark-cell sensor for continuous measurement of dissolved and gaseous ozone (O₃). It is designed for trace measurements in demanding process media and is particularly suitable for semiconductor / ultrapure-water, power and steam, pharmaceutical and chemical applications.
 
Applications
 
 
 
Semiconductor industry / Ultrapure Water
 
 
Power & Steam
 
 
Pharmaceuticals & Chemicals
 
 
In-line and at-line measurements
 
 
Measuring Principle
 
Ozone diffuses through a semi-permeable membrane to the gold cathode, where it is electrochemically reduced. The resulting current is proportional to the O₃ partial pressure. A guard ring minimizes interference from ozone already dissolved in the electrolyte.
 
Technical Data
 
 
 
Dissolved O₃: 1 ppb–50 ppm
 
 
O₃ partial pressure: 1 Pa–10 kPa
 
 
Response time (90 % @25 °C): 30 s
 
 
Accuracy: ±1 % of reading*
 
 
Temperature Compensation: −5 to +60 °C
 
 
Liquid flow rate: 350 ml/min
 
 
Linear flow rate: 30 cm/s
 
 
Gas flow rate: 0,01–3 l/min
 
 
Pressure rating: 50 bar
 
 
Wetted materials: 316L stainless steel, PFA
 
 
Enclosure rating: IP68 / NEMA 6P
 
 
Weight: 0,6 kg
 
 
Sensor cable: 3–100 m
 
 
Extension
 
Optionally with OZONOTEC ANALYZER as the evaluation unit for display, alarm functions and signal integration.
 
* 1 % of the reading or the minimum value, whichever is greater.