SFM118 Series Single Phase Multifunction Meter

Expanded Technical Description: SFM118 Series Single-Phase DIN-Rail Multifunctional 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.

product details

Product Description

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