The OxyProbe II dissolved oxygen sensor from Broadley-James has a new improved membrane design modelled on the 25 mm membrane cartridge. Suitable for biotechnology applications, it has an expandable inner silicone bladder that holds the electrolyte within a 316L stainless steel cage. During SIP processes or autoclaving the electrolyte turns to steam but does not distend the measurement membrane because the internal bladder expands first. This takes pressure off the sensitive measurement area and keeps the risk of damage to a minimum.
It comes with either a waterproof VarioPin connector or a D9 connector. The standard D9 connector has hermetically sealed gold plated contacts in a glass insulator, giving excellent signal isolation and transmission. The T-pull connector version allows easy removal from a fermenter and reduces strain on the cable.
The sensor can be autoclaved and steam sterilised and features accurate measurement and fast response. It is long lasting and easy to maintain, with FDA approved materials of construction and a hygienically polished N5 surface finish (maximum Ra15 in). The wetted O-rings comply with FDA and USP Class VI standards.
The membrane body and inner body can be changed quickly, saving time on maintenance. Because of the modular design, different sensors have the same spare parts so that inventory can be kept to a minimum. Existing 12 mm OxyProbe sensors can be updated to the OxyProbe II design during the rebuilding process.
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