| 摘要 |
<P>PROBLEM TO BE SOLVED: To make freely settable a measuring time zone, and to allow for comparison for used electric power using amount for every time zone and used daily electric power amount in each time zone. <P>SOLUTION: This electronic type watt-hour meter 1 is provided with a measuring means for measuring the used electric power amount, a clocking means for clocking a time and a date, a storage means for storing various kinds of data, a computing means for computing various kinds of computations, a liquid crystal panel 2 for displaying the data, and an operation button 3 for conducting switching, setting and the like for display for a displaying means. The used electric power amount in the time zone set optionally using the operation button 3 is measured by the measuring means and stored in the storage means, and the used electric power amount in the set time zone is integrated by the computing means to be displayed on the liquid crystal panel 2. The measured data in the past stored in the storage means can be selected by using the operation button 3 and can be displayed on the liquid crystal panel 2. <P>COPYRIGHT: (C)2004,JPO |
