| 摘要 |
PURPOSE:To make it easy to control quality by enabling a plurality of timers to work successively and sequentially with extraction function and automatically switching to display the passing time on one display. CONSTITUTION:A first timer I starts at the time of receiving a selling signal by operation of an extraction switch, passing time after the extraction time is counted and at the same time the counted time of the timer I is displayed on a display 9. A second timer II starts when a selling signal is sent again at the time of the second extraction and the passing time is counted in the same way, but the passing time is not displayed. Like this, timers start successively at every time of receiving a selling signal and passing times after each extraction time are individually counted. The passing time of the timer I which starts prior is displayed on a display 9 and when the passing time becomes a predetermined time, an alarm means such as a buzzer is worked so as to urge an operator to throw coffee, not sold and left over, away. In this way, quality is controlled easily. |
