| 摘要 |
PROBLEM TO BE SOLVED: To obtain integrated power for each mode such as during standby and in operation when integrated power of a measuring apparatus is measured.SOLUTION: Instantaneous electric power is calculated from each data of a voltage and a current after A/D conversion and the instantaneous electric power is integrated for a predetermined period. When the integrated electric power is displayed at a predetermined display section, a plurality of electric power threshold levels are set for each predetermined power range that is not overlapped with each other by electric power filter circuits 21a to 21n. A power operation section 13 determines in which electric power threshold level calculated instantaneous electric power W is included. Sub-total accumulators 22a to 22n integrate instantaneous electric power for each electric power threshold level and obtain a separate electrical power sub-total integrated value (for example, an electric power integrated value during standby and an electric power integrated value during operation) to display it on a display section 30 and/or output it to an external apparatus.SELECTED DRAWING: Figure 1 |
