| 摘要 |
Provided is an electronic watthour meter (50) that is equipped with: a watthour meter main body unit (51) having a built-in measuring unit that measures electricity in an electric path, said electricity being to be measured; a transmission element (3) and a reception element (4), which are disposed on the watthour meter main body unit (51) by being separated from each other; a front cover (1) that is provided on the upper surface of the watthour meter main body unit (51) to cover the transmission element (3) and the reception element (4), said front cover being configured from a transparent member; and a light blocking unit (5), which is formed on a front cover (1) surface to protrude therefrom, said surface facing the transmission element (3) and the reception element (4), and which is disposed to have a function of blocking light when the front cover (1) is mounted, said light being emitted from the transmission element (3) to the reception element (4). |
