SFM118 Series Single Phase Multifunction Meter
SFM118 Series Single Phase Multifunction Meter
The SFM118 series single-phase DIN-rail multifunctional meter is specifically engineered for seamless integration and operation within single-phase two-wire (1P2W) power grid systems. Tailored to the demands of modern electrical monitoring, this compact DIN-rail mounted device delivers high-precision measurement capabilities for a comprehensive suite of critical power parameters, making it an ideal solution for real-time power monitoring applications across residential, commercial, and light industrial settings.
At its core, the SFM118 series meter excels in accurately measuring key electrical characteristics, including:
● RMS voltage and RMS current
● Active power, reactive power, and apparent power
● Grid frequency
● Import (consumed) and export (fed-back) active/reactive energy
Beyond its robust local measurement and display functions, the SFM118 series meter is designed with flexible data communication capabilities. The monitoring data collected by the meter can be seamlessly transmitted to host computers, PLCs, and other industrial control equipment, enabling the construction of a centralized, integrated measurement and control system. This system architecture supports remote data acquisition, real-time load analysis, energy consumption statistics, and automated power management, thereby enhancing operational efficiency and facilitating data-driven decision-making for power system administrators.
Technical Parameters
| Parameters | Index | |
| Input | Voltage | Voltage(Un): 230VAC |
| Voltage range: 176-276VAC | ||
| Current | directly connected: 0.25-5(45)A Overcurrent with stand : 30Imax for 0.01s | |
| Frequency | 50Hz | |
| Wiring | Connecting capacity: from 0,5 to 10 mm2 | |
| Display | Display: LCD with white back-light Max reading: 99999.9kWh | |
| Accuracy | Active energy : Class 1,Class B | |
| Output | Communication | Interface: RS485 Protocol: Modbus RTU |
| Pulse | Pulse constant: 1000imp/kWh | |
| Power consumption | < 2W/ 25VA | |
| Withstand | AC voltage | 4kV/1 min |
| DC impulse | 6kV-1.2µs waveform | |
|
Climate environment | Temperature | Operating temperature: -25°C~ + 55 °C |
| Storage temperature: -40°C ~ + 70°C | ||
| Humidity | ≤ 95% non-condensing,no corrosive gas | |
| Altitude | ≤2000m | |
| mechanical environment | M 1 | |
| electromagnetic environment | E2 | |