Selec MFM383A-C Multi-Function Power Meter is an advanced electronic measuring device designed to monitor and display multiple key electrical parameters in 3-phase electrical systems. This product belongs to the MFM (Multi-Function Meter) series by Selec Controls Pvt. Ltd.
Specifications of Selec MFM383A-C
- Measured parameters: V, A, Hz, Pf, kW, kVA, kVAr and kWh, kVAh, kVArh
- Display: 3 rows, 4 digits, LCD type
- 4th row: 8 digits (for energy)
- CT ratio setting: 1A / 5A - 10,000A
- Network types: 3-phase 4-wire, 3-phase 3-wire, 2-phase 3-wire & 1-phase 2-wire
- Output: Pulse output 24VDC / 100mA
- Accuracy: Class 1 (for energy)
- PT Primary setting: 100V - 10 kV
- PT Secondary setting: 100 - 500V AC (L-L)
- Password protection
- Power supply: 85 - 270V AC
Key Features
- Precise Multi-Parameter Measurement: Integrates multiple electrical measurements into a single device for comprehensive system status. High accuracy, typically class 1.0 or 0.5 for energy.
- Analog Output (Model 'A'): Converts measured parameters into standard analog signals (e.g., 4-20 mA or 0-10 V) for easy integration with PLCs or data loggers.
- Modbus RTU Communication via RS-485 (Model 'C'): Enables connection to SCADA systems, Energy Management Systems (EMS), or central monitoring for remote data collection and large-scale energy analysis.
- Clear Digital Display: Bright LED/LCD screen for easy reading in low light or from a distance.
- Easy Setup and Operation: User-friendly interface with intuitive buttons.
- Standard Panel Cutout: 96x96 mm dimensions for standard industrial enclosures.
- High Reliability and Value: Excellent balance of quality, durability, and cost-effectiveness.
Installation & Usage Guide
- Proper Installation:
- Mount the meter into the standard cutout on the panel.
- Connect voltage lines directly to V1, V2, V3, VN terminals.
- Connect current lines via Current Transformers (CT) with correct polarity (P1-P2) and phase matching (IA, IB, IC).
- Connect RS-485 communication (A+, B-) and analog output if applicable.
- Configuration:
- Access setup mode to configure CT Ratio, PT Ratio, network type, Modbus address, and baud rate.
- Monitoring & Maintenance:
- Use front buttons to cycle through parameters or view via SCADA/EMS.
- Periodically check wire connections to ensure they remain tight and secure.
