Rohde & Schwarz has expanded the capabilities of its MXO series oscilloscopes with the new R&S MXO-K333 software option for three-phase power analysis. Designed for testing and troubleshooting three-phase power systems, drives, and inverters, the software provides advanced measurement and analysis tools.
Compatible with all four- and eight-channel models in the MXO 3, MXO 4, MXO 5, and MXO 5C families, the option enables detailed analysis of voltage and current signals in three-phase AC applications. It allows engineers to view captured waveforms alongside power measurements, making it easier to correlate electrical behavior with transient events. Users can also access built-in oscilloscope features such as math functions, spectrum analysis, measurement tracking, and zone triggering for deeper analysis.
A guided setup wizard assigns the oscilloscope channels to the voltage and current probes used for the three-phase analysis. It verifies the wiring and supports common two-wire, three-wire and four-wire configurations (2V2A, 3V3A and 3VN3A). After setup, the software provides cycle-by-cycle calculations for RMS values, power factor, active power, reactive power and total power. By defining the input and output configuration, users can also calculate the system’s three-phase efficiency. Additional analysis views include phasor display, harmonic analysis and THD measurements in line with IEC 61000-3-2 and MIL-STD-1399.
As an oscilloscope-based solution, the R&S MXO-K333 enables engineers to correlate three-phase power results directly with the underlying voltage and current waveforms in real time. This is especially valuable during R&D and debugging, when power behavior often must be analyzed alongside switching events, transients, control signals and communication activity. Users can combine the three-phase analysis with inherent MXO capabilities such as advanced triggering, FFT, automated measurements, track functions and protocol decoding. This allows engineers to move from power measurement to root-cause investigation in a single instrument.
The R&S MXO-K333 3-phase power analysis oscilloscope software is now available from Rohde & Schwarz.
