| 摘要 |
In a method for monitoring the operability of a liquid delivery device such as a dispenser (10), a response signal of a liquid-transformer system consisting of a transformer (24) and a chamber (12) 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 (12), 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.
|
