CIRCUIT AND DEVICE AND LOAD INFORMATION MONITOR CONTROL

PURPOSE:To manage electric energy by collecting and displaying load information of electric equipment and collecting consumed electric energy for each electric equipment. CONSTITUTION:In a monitor control circuit 1, a current transformer 5 performs current level conversion of an electric path 21 in non-contact manner, and a transformer 6 conducts level-conversion while the voltage at an electricity reception part insulated, and an operation processing part 7, after conducting A/D conversion with each analogue signal with its level converted, performs, at least four-rules-of-arithmetic calculations for electric energy, and then displays it on a display part 8.