The ION9000 power meters feature 4-quadrant measurement capabilities, allowing for the import and export of active and reactive energy. They include active, reactive, and apparent energy meters per phase, as well as separate active energy meters with tariff selection via a weekly timer. The device provides voltage measurements (average and per phase), average current values, and displays active, reactive, and apparent power along with the power factor (total and per phase). It also shows average power values, frequency, minimum and maximum values of instantaneous readings, as well as maximum values of average current and power. Harmonic content is measured with THD I, THD U, and TDD, and harmonic analysis is available, with measured values per phase displayed in a bar chart, up to the 63rd harmonic on the device display and up to the 511th harmonic via software (1024 measured values per period). The supply voltage ranges from 20-60V DC and complies with the standards EN 50160, IEC 61000-4-30, and IEC 519.