Description
The EVALSTPM-3PHISO evaluation board implements a complete three-phase energy meter with low-cost shunt current sensors. The solution is based on the STPMS2 device, a double channel, 24-bits second

Features
■ Compliant to EN 50470-x, IEC 62053-2x, ANSI12.2x standard requirements for AC watt meters
■ Active wideband, active fundamental, reactive and apparent power/energy calculation for each phase and cumulative
■ Accuracy Class 0.5 according to IEC 62053-22 on 3-ph active/apparent power measurement
■ Accuracy Class 1 according to IEC 62053-21 on 3-ph reactive power measurement
■ 6 channels voltage and current decimated samples available @200 us
■ 5 kHz measurement bandwidth
■ RMS and THD (optional) calculation of each voltage and current signal
■ Selectable high pass filter for DC measurement
■ Line period and phase shift measurement for each phase
■ Phase voltage delays
■ Full calibration (amplitude, power offset and samples offset for DC measurement)
■ Two configurable LED for pulsed outputs
■ Communication through USB in virtual com port mode with shell commands
■ 6 kV galvanic isolation between the phases with 8 mm creepage and clearance