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Planar Oxygen Minisensor
16
5.2.4 Oxygen Probe for Inline Measurements in Fermenters (OIM)
OIM consists of a fitting made from stainless steel. The oxygen sensor is integrated in the top of the metal fitting (as shown
below). The metal fitting is connected to the instrument via a polymer optical fiber. The standard fiber cable length is 2.5 m.
OIM is available in different sizes (12 mm, 25 mm) and standard OIM fits to B. Braun Biostat B and B. Braun Biostat C
fermenters.
Polymer optical fiber
Steel housing (diameter: 12 mm)
DO Probe immobilized on a glass support
This chemo-optical DO probe has outstanding properties:

The system can be used after autoclavation without recalibration

The system is fully autoclavable up to 100 times

In contrast to classical oxygen electrodes, membrane cleaning and frequent replacement is not necessary

There are no electrolyte solutions to poison or replenish

No time for polarization is needed


Long shelf-life
measuring range: 0-250 % a.s.

limit of detection: 0.15 % a.s.
Please note: The OIM is only ready for use together with the Optical Exchange Cap (OEC, see page 17) containing the
oxygen sensor membrane.
Ordering information
OIM
D12 / L
L
Length of the
Oxygen Probe for
fiber cable
Inline Measurement
- 2.5: 2.5 m
Steel tube
- 5: 5 m
Diameter [mm] / Length [mm]
12 / 120
12 / 160
12 / 215
12 / 325