| 摘要 |
The invention relates to a method for monitoring the operational capability of a liquid transport device, such as a dispenser (10), whereby a response signal from a fluid transducer system, comprising a transducer (24) and a fluid-filled chamber (12), is compared with a reference value. The reference value is preferably recorded for a functioning, in other words, fault-free fluid transducer system. The response signal is different to the reference signal, for example, when air bubbles are located in the chamber (12). By means of comparing the response signal to the reference value, a corrective step, for example a cleaning cycle can be carried out on a threshold value being exceeded or not met.
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