Parameters Parameter Specification Product Series Power Quality & Energy Metering Series Device Type Multi-function Power Quality Analyzer / Energy Meter Commercial Reference METSEPM2125C2DI2RO Measurement Inputs Voltage: Single-Phase or Three-Phase + Neutral. Current: Via external Current Transformers (CTs). Key Measurements • Fundamental Parameters: V, A, Hz, kW, kVAR, kVA, PF, Energy (kWh, kVARh). • Demand: Real-time and historical profiles. • Power Quality: Voltage & Current THD, Individual harmonics (e.g., up to 31st), Voltage sags/swells/interruptions, Unbalance, Flicker. Accuracy Class (Critical) Active Energy: Class 0.2 per IEC 62053-22 (as indicated by "C2"). Digital Inputs 2 Digital Inputs (as per "DI2") for dry contact status monitoring or pulse counting from external devices. Relay Outputs 0 Relay Outputs (as per "RO"). For alarm/control outputs, a different variant (e.g., R1, R2) is required. Display Integrated LCD or graphical display for local data viewing and configuration. Communication Ports Typically includes RS-485 (Modbus RTU) and may support additional protocols (e.g., Ethernet via optional module). Data Logging Internal memory for storing logged data (trends, events, waveforms). Power Supply Wide-range AC/DC supply (e.g., 85-265 V AC/DC). Mounting DIN-rail or panel mounting. Operating Temperature -25°C to +70°C. Standards & Certifications CE, UL, cUL, IEC 62053-22, IEC 61000-4-30 (for power quality), RoHS.