Evotec Oia Ag

Axel Ehlert

Hartwig Preckel

Oliver Wendt

In a method for monitoring the operability of a liquid delivery device such as a dispenser (), a response signal of a liquid-transformer system consisting of a transformer () and a chamber () containing a liquid is compared with a reference value. Preferably, the reference value is determined when the liquid-transformer system is operative, i.e., non-disturbed. The response signal differs from the reference value if there are air bubbles in the chamber (), for example. By comparing the response signal with the reference value, a correction step such as a cleaning cycle can be performed when a limit value is exceeded or fallen short of.

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Hamburg, Germany

Axel Ehlert