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Mid-Range Oxygen Sensor with Fast Response Time
Oxygen Exchange Cap OEC-PSt8-NAU
The Oxygen Exchange Cap with oxygen sensor type PSt8 is made of stainless steel. It has a maximum measurement range of 0 - 20.9 % O2, and a detection limit of 0.007 % O2. This sensor cap is specifically designed for applications where a fast sensor response time (< 3 sec.) is needed. It is screwed to the top of the OXYPro® MR / MRM fitting to replace a used sensor. It can easily be calibrated with one fast barcode scan. OEC-PSt8-NAU-OIW is not autoclavable.
- Maximum measurement range of 0 - 20.9 % O2
- Fast response time (< 3 sec.)
- Easy exchange due to barcode calibration
- Pressure resistant
Technical
| Specifications | OEC-PSt8-NAU-OIW |
|---|---|
| *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) Gaseous O2*** Dissolved O2**** | < 3 sec. < 3 sec. |
| Properties | |
| Compatibility | Aqueous solutions |
| 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 |
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