SFM236 Series Single Phase Multifunction Meter
SFM236 Series Single Phase Multifunction Meter
The SFM236 series single-phase multifunctional DIN-rail meter is a compact, high-precision electrical monitoring device engineered exclusively for single-phase two-wire (1P2W) power systems. Ideal for residential, light commercial, and small-scale industrial applications—such as apartment complexes, retail stores, and standalone machinery—the meter delivers reliable real-time data acquisition, making it a core component of efficient power monitoring and management solutions.
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:
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.
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...240VAC |
| Voltage rang e : 0.8Un -1.15Un | ||
| Current | directly connected: 0.25- 5(80) A Overcurrent with stand: 301max for 0.01s | |
| Frequency | 50 / 60Hz | |
| Wiring | Connecting capacity: from 16 to 25 mm2 | |
| Display | Display : LCD with white back- light Max reading: 999999kWh | |
| Accuracy | Active energy: Class 1,Class B | |
| Output | Commun1cat1on | Interface: RS485 Protocol : Modbus RTU |
| Pulse | Pulse constant : 800im p/ kWh | |
| Power consumption | < 2W/ 1OVA | |
| Withstand | AC voltage | 4kV/1 min |
| DC impulse | 6kV-1 .2µ s 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 | M1 | |
| electromagnetic environment | E2 | |