| 摘要 |
PURPOSE: A cooling water detecting device with a time relay is provided to prevent uncomfortable feeling of passengers because a buzzer and a cooling water warning lamp are not operated several times. CONSTITUTION: A cooling water detecting device comprises a power supply unit(100), a contact unit(200), a relay unit(300), an alarming unit(500), and a time relay(400). The time relay is formed between the relay unit and the alarming unit. The power supply to the alarming unit is controlled according to the time where the relay unit is switched on by the time relay. The alarming unit comprises a warning lamp and a buzzer for informing a cooling water injection timing. |
