Oxygen Probe for In-Line Measurement OIM-PSt6

Description

The PreSens OIM-PSt6 connects to an oxygen meter (oximeter) via optical fiber, has a standardized thread and length, and is compatible with most bioreactors and port adapters.

OIM-PSt6 in-line oxygen probe consists of a stainless steel fitting with an optical replaceable cap in which an oxygen sensor is integrated. The optical interchangeable cap is screwed onto the top of the metal fitting and can be easily replaced if required.

The PreSens sensor provides highly accurate oxygen measurements, very fast response times and is virtually maintenance-free as it contains no membranes or electrolytes. The sensor is fully autoclavable and sterilizable (CIP and SIP).

In-line oxygen sensors are ideal for use in harsh environments such as high pressure or oil / water mixtures. For example, to monitor and control production processes in biotechnology, pharmaceuticals, brewing and beverage industries.

Technical characteristics of the oxygen probe PreSens OIM-PSt6

• Measurement range:
  Gaseous and dissolved O2: 0 - 5% O2, 0 - 41.4 hPa
  Dissolved O2: 0 - 2 mg / L, 0 - 56.9 μmol / L
• Detection limit:
  Gaseous and dissolved O2: 0.002% oxygen
  Dissolved O2: 1 ppb
• Resolution:
  Gaseous and Dissolved O2:
  ± 0.0007% O2 at 0.002% O2
  ± 0.0015% O2 at 0.2% O2
  ± 0.007 hPa at 0.023 hPa
  ± 0.015 hPa at 2.0 hPa
  Dissolved O2:
  ± 0.0003 mg / L at 0.001 mg / L
  ± 0.0006 mg / L at 0.09 mg / L
  ± 0.010 μmol / L at 0.03 μmol / L
  ± 0.020 μmol / L at 2.8 μmol / L
• Accuracy: ± 1 ppb or ± 3% of the corresponding concentration
• Drift: at 0% oxygen less than 2 ppb for 30 days (sampling interval 1 min.)
• Temperature measurement range: from 0 to + 50 ° С
• Response time (t90):
  Gaseous and dissolved O2: less than 6 sec.
  Dissolved O2: less than 40 sec.
• Compatibility: aqueous solutions, ethanol, methanol
• No transverse sensitivity with: pH 1 - 14, CO2, H2S, SO2, ionic forms
• Cross-sensitivity: organic solvents such as acetone, toluene, chloroform or methylene chloride, chlorine gas
• Sterilization: Ethylene oxide (EtO), steam sterilization
• Cleaning: Cleaning in place (CIP, 2% NaOH, + 80 ° C, + 176 ° F), 3% H2O2, acids (HCl, H2SO4), max. 4-5%
• Calibration: 2-point calibration in an oxygen-free environment (nitrogen, sodium sulfite) and a second calibration value is optimal between 1% and 2% oxygen
• Shelf life when stored in the dark: 60 months