| 摘要 |
PROBLEM TO BE SOLVED: To provide a timer device that can suppress power consumption of a backup power source and can display the time when electric power supply is resumed if electric power supply is resumed.SOLUTION: The timer device counts signals and does not conducts a carry-up calculation when the device is being operated by a backup power source, performs a carry-up calculation of the value having been counted when electric power supply from a hot-water supply device body is resumed, and displays the result of the carry-up calculation in a time display unit in second, minute, and time.SELECTED DRAWING: Figure 2 |
