| 摘要 |
PURPOSE:To provide a data logger which can automatically correct the measured value which is proportional to the consumed electric power and makes it possible to measure electric power highly precisely. CONSTITUTION:The output value proportional to the consumed electric power value obtained through an analog input circuit 52 is integrated by an instant electric power integrating counter 54. A computing circuit 55 computes the error of the consumed electric power value based on the integrated value, the count value of an integration time counter 56, and the measured value proportional to the consumed electric power obtained through a pulse input circuit 51 and corresponding to the error computed by a correction circuit 57, the consumed electric power value is automatically corrected. |
