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Fast Response Time and Reduced Air Bubble Formation for OXYPro® MR / MRM
Oxygen Exchange Cap OEC30-PSt8-NAU
The Oxygen Exchange Cap with oxygen sensor type PSt8 is made of stainless steel and specifically designed for applications where a fast sensor response time is needed (< 3 sec.). It has a maximum measurement range of 0 - 20.9 % O2, and a detection limit of 0.007 % O2 / 3 ppb. The beveled tip reduces air bubble formation on the sensor during dissolved oxygen measurements. The cap is screwed to the top of the OXYPro® MR / MRM fitting to replace a used sensor. It is not autoclavable.
- Maximum measurement range of 0 - 20.9 % O2
- Fast response time (< 3 sec.)
- Reduced air bubble formation
- Easy exchange due to barcode calibration
- Pressure resistant
|*at 20 °C, 960 - 980 hPa; humidified gas mixture |
**after customized calibration
***determined changing from 10 % oxygen gas to nitrogen 5.0
****determined changing from air-saturated water to a freshly prepared 1 % sodium sulfite solution
|Measurement range*||Optimal: 0 - 10 % O2, 0 - 100 hPa, 0 - 4.5 mg/L |
Max.**: 0 - 20.9 % O2, 0 - 200 hPa, 0 - 9.0 mg/L
|Limit of detection*||0.007 % O2, 0.07 hPa, 3 ppb|
|Resolution*||0.007 % O2 ± 0.002 % O2, 0.023 % O2 ± 0.005 % O2, 2.314 % O2 ± 0.007 % O2 |
3 ppb ± 1 ppb, 10 ppb ± 2 ppb, 1000 ppb ± 3 ppb
|Response time (t90) |
< 3 sec.
< 3 sec.
|No cross-sensitivity to||pH 1 - 14, CO2, SO2, ionic species|
|Cross-sensitivity to||Chlorine gas |
Organic solvents such as pure acetone, toluene, chloroform or methylene chloride
|Cleaning procedure||3 % H2O2, acidic agents (HCl, H2SO4) max. 4 - 5 % |
Ethanol, methanol, cleaning agents at room temperature
|Calibration||Two-point calibration in oxygen-free environment (e. g. nitrogen 5.0, 1 % sodium sulfite solution) and a second calibration medium between 2 and 4 % oxygen|
|Storage stability||5 years provided the sensor material is stored at room temperature in dry conditions and in the dark|
|Pressure resistance*||- 1 bar to + 12 bar|
|Temperature range operation||Optimal: 0 °C to + 50 °C |
Max.: - 10 °C to + 70 °C
|Storage conditions||Optimal: room temperature (+ 20 °C ± 5 °C) |
Max.: 0 °C to + 70 °C, 80 % rel. humidity