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Replacement Trace Oxygen Sensor for OXYPro® TR / TRM

Oxygen Exchange Cap OEC-PSt6-NAU

The Oxygen Exchange Cap with integrated sensor type PSt6 is made of stainless steel and can replace a used sensor on an OXYPro® TR / TRM. The sensor has a very fast response time (< 3 sec.) and a maximum measurement range of 0 - 10 % oxygen (detection limit of 0.002 % O2 / 1 ppb). This sensor can be calibrated with one fast barcode scan. It is not autoclavable.

  • Maximum measurement range of 0 - 10 % O2
  • Fast response time (< 3 sec.)
  • Easy exchange due to barcode calibration
  • Pressure resistant
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Technical

Specifications OEC-PSt6-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 - 5 % O2, 0 - 50 hPa, 0 - 2 mg/L
Max.**: 0 - 10 % O2, 0 - 100 hPa, 0 - 4.5 mg/L
Limit of detection* 0.002 % O2, 0.02 hPa, 1 ppb
Resolution* 0.002 % O2 ± 0.0006 % O2, 0.046 % O2 ± 0.0008 % O2, 0.2 % O2 ± 0.001 % O2
1 ppb  ± 0.3 ppb, 20 ppb  ± 0.4 ppb, 100 ppb  ± 0.5 ppb
Response time (t90)
Gaseous O2***
Dissolved O2****

< 4 sec.
< 4 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
Calibration Two-point calibration in oxygen-free environment (e. g. nitrogen 5.0, 1 % sodium sulfite solution) and a second calibration medium between 1 and 2 % oxygen
Cleaning procedure 3 % H2O2, acidic agents (HCl, H2SO4) max. 4 - 5 %
Ethanol, methanol, cleaning agents at room temperature
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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