| 摘要 |
PURPOSE:To prevent difficintly in observation from outside from occurring due to gloss of display data with random reflection by bringing a display unit and a display selector close to a window plate provided at a door, and externally operating the selector out of the door. CONSTITUTION:A power managing meter 11a has a display unit 12a and a display selector 13a on its front surface, and an information setter on its back surface. A transparent window 3a of a window plate 3 is corresponded to the unit 12a, and a display selecting key position display unit 3b is fixed corresponding to the selector 13a. Since the display of the unit 12a of the meter 11a mounted at the door 2 can be selectively switched from outside of the plate 3, various power information can be observed without opening the door 2. The unit 12a selectively displays a plurality of power information to be displayed on the meter 11a such as a voltage value, a current value, and selects it by inputting the input of the selector 13a to a microcomputer via detecting means. |
