| 摘要 |
<p>The device has a measuring device provided for measuring the liquid quantity in a liquid container (22), and a time recording device. A data storage unit stores reference value representing the liquid quantity. An evaluation unit (40) evaluates actual values, which represent the liquid taken of over defined time intervals, where the actual values are compared with the reference values. A signaling device (48) is provided for displaying the result from the comparison of the actual values with the reference values.</p> |
