To replace the portable recorder used by Hyundai Electric, a new data collection and analysis program based on LabVIEW was developed. To solve problems with existing portable equipment that is difficult for workers to use due to aging or performance issues, a more intuitive UI and better data processing functions can be provided. You can measure the voltage of generators, circuit breakers, etc. to collect voltage data in the field, and you can check the filtered data, RMS, and peak by channel. There is also a data storage function and a function to check the stored data as a graph.