Sensors & Transducers


Mettler Toledo's optical dissolved oxygen sensor

August 2012 Sensors & Transducers

Mettler Toledo Ingold’s new InPro 6860i optical dissolved oxygen (DO) sensor offers outstanding performance in biopharmaceutical applications. The InPro 6860i combines the advantages of optimal measurement techniques, with exceptional installation flexibility and the benefits of Mettler Toledo’s intelligent sensor management (ISM) technology, making it the ideal choice for DO measurement in the pharmaceutical industry.

The advantage of optical DO technology is low drift, which is vital for accurate DO determination throughout long fermentation runs. When drift occurs, the 6860i automatically compensates for it to keep measurements accurate. The fast response to changes in dissolved oxygen level means early correction of out-of-spec conditions.

The Inpro 6860i has no electrolyte so maintenance is low. The OptoCap which contains an oxygen sensitive layer, is the only element that requires periodic replacement. Teflon coating on the OptoCap prevents fouling and ensures easy cleaning.

Failure of a sensor during a fermentation run can lead to total batch loss. ISM prevents this by constantly monitoring the ‘health’ of the InPro 6860i. Historic and current process conditions are used by sophisticated algorithms to determine when sensor calibration and OptoCap replacement will be required.

The adaptive calibration timer and dynamic lifetime indicator displayed on the M800 transmitter and iSense Asset Suite software, allow proactive maintenance of the sensor and ensure accurate performance. ISM sensors retain calibration data in the sensor head. When connected to an ISM-equipped transmitter, this information is automatically uploaded and the transmitter configures itself appropriately. This plug and measure feature ensures measurement point start up is quick and error free.

For more information contact Chris de Jager, Microsep, +27 (0)11 553 2300, [email protected], www.microsep.co.za



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