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Replacement Oxygen Sensor for OXYPro® WR / WRM
Oxygen Exchange Cap OEC-PSt7-YAU
The Oxygen Exchange Cap is made of stainless steel and has an integrated sensor type PSt7. The sensor has a maximum measurement range of 0 - 100 % O2, and a detection limit of 0.03 % O2. It stands steam sterilization and cleaning in place. The OEC-PSt7-YAU is available in different versions: USP Class VI compatible (YOP) for bioprocess monitoring, safe for food applications (CAF), or with a hydrophobic Teflon coating (PTFE) for measurements in aggressive environments. The OEC can be screwed to the top of the OXYPro® WR / WRM fitting. Exchange of a used sensor is made easy as sensor calibration can be done via one fast barcode scan.
- Maximum measurement range of 0 - 100 % O2
- Different versions: USP Class VI compatible, food applications, aggressive environments
- Stands SIP (max. + 140 °C, 1.5 atm) & CIP (2 % NaOH, + 80 °C)
- Easy exchange due to barcode calibration
- Pressure resistant
Technical
| Specifications | OEC-PSt7-YAU-YOP | OEC-PSt7-YAU-CAF | OEC-PSt7-YAU-PTFE |
|---|---|---|---|
| *at 20 °C, 960 - 980 hPa; humidified gas mixture **after customized calibration ***determined changing from 20.9 % oxygen gas to nitrogen 5.0 ****determined changing from air-saturated water to a freshly prepared 1 % sodium sulfite solution | |||
| Measurement range* | Optimal: 0 - 50 % O2, 0 - 500 hPa, 0 - 22.5 mg/L Max.**: 0 - 100 % O2, 0 - 1000 hPa, 0 - 45.0 mg/L | ||
| Limit of detection* | 0.03 % O2, 0.3 hPa, 0.015 mg/L | ||
| Resolution* | 1 % O2 ± 0.02 % O2, 20.9 % O2 ± 0.1 % O2 | ||
| Response time (t90) Gaseous O2*** Dissolved O2**** | < 10 sec. < 30 sec. | < 15 sec. < 40 sec. | < 85 sec. < 100 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 | ||
| Steam sterilization (max. + 140 °C, 1.5 atm) | Yes | Yes | Yes |
| Cleaning in place (CIP) (+ 80 °C, 2 % NaOH) | Yes | Yes | Yes |
| 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 (e. g. nitrogen 5.0, 1 % sodium sulfite solution) and air-saturated environment (20.9 % oxygen, air-saturated water) | ||
| 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 + 90 °C | ||
| Storage conditions | Optimal: room temperature (+ 20 °C ± 5 °C) | ||
| Variants | USP Class VI compatible | Safe for food applications | Hydrophobic Teflon coating |
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