| 摘要 |
The timer device(1) comprises a first timer (12) in communication with control means(11), said control means (11) being in communication with an external component (15) and said first timer (12) sending an order to the control means (11) after a first preset time period is counted by the first timer (12), and it is characterized in that the timer device also comprises a second timer (13) in communication with said control means (11), said second timer (13) counting a second preset time period that is a portion of said first preset time period. It permits an accurate operation, even with changes of temperature and voltage and with a reduced cost. |
