Measure O₂ in Liquids and Gases
 
OXYTRANS ATEX measures O₂ in deaerated water, wort, beer, beverages, liquid food products, CO₂ and inert gases. This version is documented for applications requiring maximum sensitivity and high accuracy.
 
Measuring Principle
 
Indicator molecules in the optical window are excited by blue-green LED light. Oxygen transfers energy from the excited molecules and reduces the detected signal. Other gases do not affect the measurement result.
 
Applications
 
 
 
Deaerated Water
 
 
Wort
 
 
Beer
 
 
Beverages
 
 
Liquid Food Products
 
 
CO₂
 
 
Inert Gases
 
 
ATEX Option
 
 
Optical technology requiring no replacement of electrolyte or membrane; hygienic design with various flange connections.
 
Technical Data
 
Measuring Ranges, Liquid Phase: I) 1 ppb - 2 ppm
II) 30 ppb - 35 ppm
 
Accuracies, Liquid Phase: I) ± 1 ppb
II) ± 30 ppb
 
Measuring Ranges, Gas Phase: I) 0 - 4,2 % O₂
II) 0 - 50 % O₂
 
Accuracies, Gas Phase: I) ± 0,002 % O₂
II) ± 0,03 % O₂
 
Response Time / Operating Pressure: t90 ≤ 10 s / max. 12 bar
 
Operating Temperature: -5 to +55 °C (Pt100); optional +98 °C
 
Material: 1.4404 / AISI 316L, silicone (FDA), PTFE (FDA)
 
Input: 1 x analog (4 - 20 mA) & 3 x digital (24 VDC)
 
Output / Fieldbus: 2 x analog (4 - 20 mA) & 3 x digital (24 VDC)
optional: PROFIBUS DP & PROFINET
 
Enclosure Rating: IP65; optional: ATEX (II 3G Ex ic IIC T6 Gc)
 
Power Supply: 24 VDC
 
Optical Technology: No replacement of electrolyte or membrane.
 
Short Response Time: t90 ≤ 10 s and high long-term stability.
 
Hygienic Design: Various flange connections available.