0102030405
SFM236 Series Single Phase Multifunction DIN-Rail Meter from China Suppliers - High Precision Factory Monitoring Solutions
Product Description
Core Measurement Capabilities
Calibrated for exceptional accuracy, the SFM236 series meter captures a complete set of critical single-phase power parameters to support comprehensive load analysis and energy auditing:
- Voltage: RMS line voltage (compatible with standard system voltages such as 100 V, 120 V, 220 V, 230 V, 240 V)
- Current: RMS load current (configurable for direct measurement or CT-connected applications with 1 A/5 A secondary ratings)
- Power: Active power (real power consumed/supplied), reactive power (power stored in inductive/capacitive loads), and apparent power
- Frequency: Grid frequency fluctuations (typically 50 Hz/60 Hz, with precise tracking of variations)
- Energy: Cumulative import energy (power drawn from the grid) and export energy (power fed back to the grid, suitable for distributed generation systems like rooftop solar)
Operational Versatility & System Integration
Designed to meet diverse on-site monitoring needs, the SFM236 series meter supports two flexible operational modes:
🖥️ Mode 1 — Local Display Mode
The meter is equipped with an on-board digital display that presents real-time readings of all measured parameters. This allows field technicians and facility managers to perform quick spot checks, verify system performance, and troubleshoot issues without relying on external equipment.
🔗 Mode 2 — Centralized Measurement & Control Integration
Beyond local monitoring, the meter's detection data can be seamlessly transmitted to industrial control devices (including PLCs, RTUs, and energy management controllers) and host computers via industry-standard communication protocols. This integration enables the construction of a unified, centralized measurement and control system, supporting remote data logging, energy consumption trend analysis, load profiling, and automated power management.
📌
With its space-saving DIN-rail mounting design, broad parameter measurement range, and flexible integration capabilities, the SFM236 series meter is perfectly suited for real-time power monitoring applications in single-phase two-wire systems, delivering actionable data to optimize energy usage and enhance system reliability.
Technical Parameters
| Parameters | Index | |
|---|---|---|
| Input | Voltage | Voltage (Un): 100...240 VAC |
| Voltage range: 0.8Un – 1.15Un | ||
| Current | Directly connected: 0.25 – 5(80) A | Overcurrent withstand: 30I max 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 | 4 kV / 1 min |
| DC Impulse | 6 kV – 1.2 µs waveform | |
| Climate Environment | Temperature | Operating temperature: -25°C ~ +55°C |
| Storage temperature: -40°C ~ +70°C | ||
| Humidity | ≤ 95% non-condensing, no corrosive gas | |
| Altitude | ≤ 2000 m | |
| Mechanical Environment | M1 | |
| Electromagnetic Environment | E2 | |
Frequently Asked Questions
❓ What parameters can the SFM236 series meter measure?
The SFM236 series meter measures a comprehensive range of single-phase power parameters, including RMS voltage, RMS current, active power, reactive power, apparent power, grid frequency, cumulative import energy, and export energy. This makes it suitable for complete load analysis and energy auditing tasks.
❓ What voltage and current inputs does the SFM236 support?
The meter supports a rated voltage (Un) of 100 to 240 VAC, with an operating range of 0.8Un to 1.15Un. For current input, it supports direct connection from 0.25 A to 5(80) A, with an overcurrent withstand capacity of 30I max for 0.01 seconds. It is also configurable for CT-connected applications with 1 A/5 A secondary ratings.
❓ Does the SFM236 support remote data communication?
Yes. The SFM236 series meter features an RS485 communication interface with Modbus RTU protocol support. This allows seamless integration with PLCs, RTUs, energy management controllers, and host computers, enabling remote data logging, energy trend analysis, load profiling, and automated power management within a centralized control system.
❓ How is the SFM236 meter installed?
The SFM236 series meter features a space-saving DIN-rail mounting design, making it easy to install in standard electrical panels and distribution boards. The wiring connecting capacity ranges from 16 to 25 mm², accommodating a variety of conductor sizes used in industrial and commercial installations.
❓ What are the operating temperature and environmental conditions for the SFM236?
The SFM236 meter operates reliably in temperatures ranging from -25°C to +55°C, with a storage temperature range of -40°C to +70°C. It is rated for humidity up to 95% non-condensing with no corrosive gas, and can be used at altitudes up to 2000 m. Its mechanical environment rating is M1 and electromagnetic environment rating is E2.
❓ What is the accuracy class of the SFM236 energy meter?
The SFM236 series meter achieves Class 1 and Class B accuracy for active energy measurement, meeting international standards for precision energy metering. This level of accuracy ensures reliable data for billing, energy auditing, and compliance monitoring in both residential and commercial applications.