Multi-channel energy analyzer | data logger | DIN rail mounted | 85–240 V AC | high accuracy class | MODBUS RS485 | ME531

Technical Specifications

Type: Multifunctional energy data logger
Model: ME531
Mounting: DIN rail
Display: none (NO LCD)
Power supply: 85–240 V AC
Communication: MODBUS RS485
Harmonic analysis: up to the 51st harmonic (THD)
Digital inputs: 2
Digital outputs: 2
Accuracy class: high (depends on selected current sensor)
Supported current sensors: Rogowski coils; 333 mV CT transformers
Configurable rated current ranges: 100 A / 600 A / 1000 A / 3000 A / 6000 A
Recommended Rogowski coils:
• 100 A – MRC-24
• 600 A – MRC-36
• 1000 A – NRC-100
• 3000 A – NRC-150
• 6000 A – NRC-200
Voltage measurement: Direct or via VT – up to 500 kV
Recorded parameters: Current; Voltage; Active and reactive power; Electrical energy; Power factor (cos φ); Demand; Harmonic spectrum

Functions

Energy and power data collection without a local display
Operation with Rogowski coils – installation without power interruption
Harmonic analysis up to the 51st order
MODBUS RS485 – integration into BMS, SCADA, EMS
Digital inputs / outputs – for status monitoring and signaling
DIN rail mounting – compact installation in panels

Applications

For engineers / energy specialists: Centralized data acquisition from multiple points, integration into SCADA, EMS, or IoT platforms, energy consumption and power quality analysis
For industrial and commercial facilities: Monitoring of production lines, building energy management systems (BMS), data collection for optimization and reporting
Projects without a local display: When all data is monitored remotely, where compactness and cost efficiency are important, and a centralized visualization system is used

Advantages

No display – lower cost and smaller size
Harmonic analysis up to the 51st order (THD)
MODBUS RS485 – proven industrial standard
Digital I/O for additional control
Wide current range up to 6000 A
Suitable for centralized systems

Disadvantages

No local LCD display
Rogowski coil not included
Designed for system-level, not household use