In pharmaceutical, biological or process systems for food production, all process-wetted system components must be cleaned and sterilized at regular intervals. For this reason, during the cleaning in place (CIP) and sterilization in place (SIP) all relevant tubes and containers are rinsed and disinfected with the alkaline and acidic cleaning agents compatible with the process.

In SIP, process systems are also sterilized with superheated steam for 100% sterilization.

The conductivity sensors for monitoring the cleaning process and cleaning agent concentration in the rinsing water must often resist extreme temperature fluctuations and aggressive cleaning agents.