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Steel Probe for Monitoring Ultra-Low Oxygen Traces in Gases

Oxygen Probe for In-Line Measurements OIM-PSt9

The OIM-PSt9 has a stainless steel housing with standardized thread, so it is compatible with most ports and port adapters. The optical ultra-trace oxygen sensor type PSt9 has a measurement range of 0 - 200 ppmv oxygen, and a detection limit of 0.5 ppmv O2. It is integrated in a removable sensor cap, which is screwed to the top of the metal housing and can be replaced if needed. The probe can be equipped with customized fittings for e. g. sight glasses. OIM-PSt9 is ideally suited for gaseous O2 monitoring in oxygen sensitive processes, and together with the OXY-1 WM trace it can also be applied in industrial environments or hazardous areas.

  • Measurement range of 0 - 200 ppmv O2, detection limit 0.5 ppmv O2
  • For gaseous O2 measurements only
  • Pressure resistant
  • Ultra-trace O2 monitoring in gases, sensitive processes, hazardous areas
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Technical

SpecificationsGaseous O2
Measurement range0 - 200 ppmv oxygen
Limit of detection0.5 ppmv oxygen
Resolution10 ± 0.5 ppmv oxygen
100 ± 0.8 ppmv oxygen
200 ± 1.5 ppmv oxygen
Accuracy at + 20 °C*± 2 ppmv oxygen or ± 5 %, whichever is higher
Measurement temperature rangefrom 0 to + 40 °C
Response time (t90)< 3 sec.
Properties
CompatibilityGas phase only
No cross-sensitivityCO2, SO2
Cross-sensitivityOrganic vapor, Chlorine gas
CalibrationTwo-point calibration with oxygen-free environment (nitrogen 6.0) and a second calibration value optimally between 100 and 200 ppmv gaseous oxygen
Storage stability24 months provided the sensor material is stored in the dark at room temperature
*after two-point calibration as described in the manual

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