Ultra-low oxygen measurements with metal flow-through cells

Oxygen Exchange Cap OEC-M10-PSt9

This oxygen exchange cap holds a PSt9 oxygen sensor (measurement range 0 - 200 ppmv O2, limit of detection 0.5 ppmv O2) for measurements of ultra-low oxygen traces in gas pipes. The OEC-M10 can be screwed to a FTM-M10 via its M10 thread. This way a used sensor coating in your flow-through cell can easily be replaced. A polymer optical fiber with protective metal spiral tube cover can be attached to this OEC. The PSt9 sensor is only suitable for measurements in the gas phase.

  • Replacement sensor for FTM-M10
  • Detect ultra-low oxygen traces in gas pipelines
  • Max. measurement range 0 - 200 ppmv O2, limit of detection 0.5 ppmv O2
  • Signal independent from flow velocity
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Specifications Gaseous O2
*at 20 °C, 960 - 980 hPa; humidified gas mixture
**determined changing from 20.9 % oxygen gas to nitrogen 5.0
Measurement range* 0 - 200 ppmv O2
Limit of detection* 0.5 ppmv O2
Resolution* 10 ± 0.5 ppmv O2
100 ± 0.8 ppmv O2
200 ± 1.5 ppmv O2
Response time (t90)** < 10 sec.
Compatibility Gas phase only!
No cross-sensitivity CO2, H2S, SO2
Cross-sensitivity Organic vapor
Chlorine gas
Calibration Two-point calibration with oxygen-free environment (nitrogen 6.0) and a second calibration value optimally between 100 and 200 ppmv gaseous oxygen
Temperature range operation Optimal: 0 °C to + 40 °C
Max.: - 20 °C to + 60 °C
Temperature range storage Optimal: room temperature (+ 20 °C ± 5 °C)
Max.: 0 °C to + 70 °C
Storage stability 5 years provided the sensor is stored at room temperature in dry conditions and in the dark

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