0102030405
China SFM472 Series Three Phase Multifunction Meter - Reliable Suppliers & Factory for Power Monitoring Solutions
Product Description
⚡ Core Measurement Capabilities
The SFM472 series meter is calibrated to provide accurate readings of the following key electrical parameters, supporting both balanced and unbalanced load conditions:
- Voltage: Line-to-line (L1-L2, L1-L3, L2-L3) and line-to-neutral (L1-N, L2-N, L3-N) RMS voltage
- Current: RMS current for each of the three phases
- Power: Active power, reactive power, and apparent power (per phase and total system values)
- Frequency: Grid frequency fluctuations
- Energy: Import (consumed) and export (fed-back) active and reactive energy, with cumulative metering functionality
🔗 System Integration & Application Flexibility
Designed for versatility, the SFM472 series meter caters to dual operational modes to meet diverse on-site requirements:
- Local Display Function: The meter features an on-board display that provides real-time visualization of measured parameters, enabling field personnel to conduct quick spot checks and verify system performance without additional equipment.
- Centralized Measurement & Control System Integration: Beyond local monitoring, the meter's detection data can be seamlessly transmitted to industrial control equipment (such as PLCs, RTUs, and SCADA systems) and host computers via standard communication protocols. This integration enables the construction of a unified, centralized measurement and control network, supporting remote data acquisition, real-time load analysis, energy consumption auditing, and automated power system management.
Technical Parameters
| Parameters | Index | |
|---|---|---|
| Input | Voltage | Voltage (Un): 3×57.7/100…240/415 VAC |
| Voltage range: 0.8Un – 1.15Un | ||
| Current | Directly connected: 0.25 – 5(80) A Overcurrent withstand: 30Imax for 0.01s |
|
| Frequency | 50 / 60 Hz | |
| Wiring | Connecting capacity: from 16 to 25 mm² | |
| Display | LCD with white backlight Max reading: 999999 kWh |
|
| Accuracy | Active energy: Class 1, Class B | |
| Output | Communication | Interface: RS485 Protocol: Modbus RTU |
| Pulse | Pulse constant: 800 imp/kWh | |
| Power Consumption | < 2W / 10VA | |
| Withstand | AC Voltage | 4kV / 1 min |
| DC Impulse | 6kV – 1.2µs waveform | |
| Climate Environment | Temperature | Operating: -25°C ~ +55°C |
| Storage: -40°C ~ +70°C | ||
| Humidity | ≤ 95% non-condensing, no corrosive gas | |
| Altitude | ≤ 2000 m | |
| Mechanical Environment | M1 | |
| Electromagnetic Environment | E2 | |
Frequently Asked Questions
❓ What types of electrical parameters can the SFM472 series meter measure?
The SFM472 series meter measures a comprehensive range of electrical parameters including line-to-line and line-to-neutral RMS voltage, per-phase RMS current, active/reactive/apparent power, grid frequency, and both import and export active/reactive energy with cumulative metering.
❓ What communication protocol does the SFM472 support for system integration?
The SFM472 supports RS485 communication interface with Modbus RTU protocol, enabling seamless integration with PLCs, RTUs, SCADA systems, and host computers for centralized monitoring and control.
❓ What is the operating temperature range of the SFM472 series meter?
The SFM472 operates within a temperature range of -25°C to +55°C. For storage, it supports a wider range of -40°C to +70°C, making it suitable for demanding industrial environments.
❓ Is the SFM472 suitable for both balanced and unbalanced three-phase systems?
Yes. The SFM472 series meter is specifically designed and calibrated to provide accurate readings under both balanced and unbalanced 3P4W (three-phase four-wire) load conditions, making it versatile for real-world installations.
❓ What is the accuracy class of the SFM472 energy meter?
The SFM472 achieves Class 1 and Class B accuracy for active energy measurement, ensuring reliable and precise energy consumption data for billing, auditing, and load analysis applications.
❓ In which industries or applications is the SFM472 series meter most commonly used?
The SFM472 is ideally suited for real-time power monitoring in manufacturing facilities, commercial buildings, data centers, and utility substations. Its compact DIN-rail form factor and flexible integration capabilities make it a practical choice for a wide range of industrial and commercial power management applications.