•A probe is used in a fermenter to detect various process values to ensure an effective fermentation process. The probe is calibrated externally and then mounted in the fermentation vessel.

•SAM GUARD detected a problem with dissolved oxygen probe which delivered false values. 

•An alert was generated on 08/02 when there was change in the behavior of the oxygen profile.


If left undetected, incorrect oxygen values could affect the quality of the fermentation.


The probe was then replaced with a redundant probe to regulate the oxygen flow.


Product loss was prevented.