It’s an instrument for monitoring and protection of electrical equipment for industrial, commercial and residential facilities. Using the true measurement method True-RMS*, it also monitors power quality and protects single / two / three phase loads against: under and over voltage, angular asymmetry, modular asymmetry, phase loss and phase sequence inversion. The internal datalogger stores the voltages of each phase of the electrical grid during periods of time determined by the user. Time and date of each sample is stored as well (internal realtime clock).

_ _* True-RMS: the real voltage value, considering the contribution generated by high-frequency noise in the network (harmonic distortion). The voltage can be measured precisely in any waveform through this method, whereas traditional methods only correctly measure when it has a perfect sinusoidal wave. _