Three-Phase Multifunction Power Meter with Harmonic Analysis

Technical Specifications

Active Power / Power Factor Accuracy：Class 0.5

Reactive Power Accuracy：Class 1.0

Active Energy Accuracy：Class 0.5S (compliant with IEC 62053-22)

Reactive Energy Accuracy：Class 1 (compliant with IEC 62053-23)

Frequency Measurement Range & Accuracy：45 ~ 65 Hz, ±0.01 Hz

Harmonic Analysis Capability：2nd ~ 31st order harmonic; THD (Total Harmonic Distortion) calculation for voltage & current

Temperature Drift Coefficient：±50 ppm/℃ across full operating temperature range

Short-term Overload Capacity (Current)：2× rated continuous; 10× rated for 1 second; 50× rated for 1 cycle

Short-term Overload Capacity (Voltage)：1.2× rated continuous; 2× rated for 1 second

Inter-phase Consistency Deviation：< 0.05% FS, ensures accurate unbalance monitoring

Energy Pulse Output：Passive photoelectric isolation output; 3200 imp/kWh (default, configurable)

Digital Input (DI)：4 channels, passive dry contact input, photoelectric isolation; debounce time configurable

Relay Output (DO)：SPST-NO, 3 A @ 250 VAC resistive load; supports upper/lower limit alarm

Analog Transmitter Output Accuracy：±0.2% FS, 0~500 Ω load capacity (current output type)

Communication Protocol & Interface：RS485 interface, standard Modbus-RTU protocol; 1200~19200 bps software configurable

Maximum Communication Distance：1200 m @ 9600 bps (shielded twisted pair cable)

Data Retention：Built-in non-volatile memory; energy & setting data stored > 10 years after power loss

Dimension Chart