MFM Meter

Description

An MFM (Multi Function Meter) is a digital instrument designed to measure and display multiple electrical parameters such as voltage, current, frequency, power factor, active/reactive/apparent power, and energy consumption in a single unit. Widely used in industrial panels, substations, and automation systems, it provides comprehensive monitoring and analysis with PLC and SCADA integration.

Specifications

      Input Voltage: 0–500V AC (1Ø / 3Ø)

• Input Current: Up to 200A (via CTs)

• Parameters Measured: V, A, kW, kVA, kVAr, PF, Hz, kWh, demand, THD (in advanced models)

• Accuracy: Class 0.5 / Class 1 as per IEC standards

• Communication: RS485 Modbus RTU / Ethernet (advanced versions)

• Display: Multi-line LED / LCD with backlight

• Mounting: Panel mount / DIN rail

• Power Supply: 24 VDC / 110–230 VAC

• Integration: PLC, SCADA, EMS, BMS

Key Features

✅ Measures all key electrical parameters in one device
✅ Digital display with multiple scrolling screens
✅ High accuracy and fast sampling rate
✅ Modbus / Ethernet output for PLC & SCADA connectivity
✅ Demand monitoring & load profiling
✅ Compact panel-mounted design

Applications

    Energy Management Systems (EMS)

• Industrial Process Plants (monitoring power usage)

• Power Distribution Panels & Substations

• HVAC & Building Management Systems (BMS)

• Renewable Energy Monitoring (solar/wind plants)

• Manufacturing Automation & Machine Monitoring

Advantages

✔ Consolidates multiple meters into one unit
✔ Cost-effective compared to separate devices
✔ Provides real-time monitoring & logging
✔ Easy integration with PLC/SCADA
✔ Improves power quality & energy efficiency

Disadvantages

✖ More expensive than single-function meters
✖ Requires CT/PT for high-voltage applications
✖ Needs skilled personnel for configuration
✖ Advanced models may require periodic calibration