| 摘要 |
PURPOSE: To visually confirm the motion process of operation condition and operation waiting condition by guidance indicating the operation waiting condition of a ventilation fan, and also indicating its motion process. CONSTITUTION: In an indication panel 1 for the operation monitor guidance for the ventilation fan of a tunnel or the like, an operation indicator, an indicator-in-protection, an initiation delay indicator, and a malfunction machine exclude indicator as well as various kinds of commander indication every ventilation fan. As such, all of present conditions of the ventilation fans are grasped visually so as to make an administration of operation easy, thus, enabling the reliability of an automatic control apparatus to be enhanced. |
