ST-60UI-K4 Digital Combined Voltage-Current Meter

Overview: The digital display single-phase intelligent meter uses a dedicated metering chip design, capable of accurately measuring the current in the circuit, featuring high measurement accuracy and stable performance. With 4-digit LED digital tube display, high visibility, optional RS485 communication, upper/lower limit out-of-limit alarm, circuit breaker switch status detection, analog transducer output and other functions, meeting the needs of various applications. The meter panel has four programming buttons, allowing users to conveniently set the meter current transformation ratio and other parameters on-site, providing great flexibility. Technical Parameters: Measurement Range | Voltage AC0-450V, Current AC0-5A, etc., expandable through transformer, special specifications customizable Overload | Continuous: voltage 1.2x, current 1.2x; Instantaneous: voltage 2x/10S, current 10x/1S Input Impedance | Voltage >200KΩ, Current <20mΩ Measurement Accuracy | ±0.5% RMS measurement Measurement Signal Frequency Range | 45-65Hz Auxiliary Power Supply | AC220V±10% (standard), AC/DC80-265V (optional), power consumption <5VA Communication Interface | RS-485 interface, MODBUS-RTU protocol (optional) Alarm Output | 2 or 4 channels of alarm, passive contacts, capacity AC250V/3A (optional) Switch Output | 4 passive dry contact inputs for detecting the on/off status of passive contacts (optional) Analog Output | 1-4 channels of 4-20mA transducer output (optional) Insulation Withstand Voltage | >20MΩ between input/output/power/meter housing, >2KV/1min Working Environment | ≤85%RH, no condensation, no corrosive gases; altitude <3000m