ME131Multi-Circuit Smart Energy Meter DIN Rail 

Model Name: ME131 Multi-Circuit Smart Energy Meter DIN Rail

The ME131 Multi-Circuit Smart Energy Meter DIN Rail is a versatile energy meter designed for measuring and monitoring electrical parameters in various applications. It is designed to provide accurate and comprehensive electrical parameter measurements for power analysis and energy monitoring in various industrial and commercial applications. Its compatibility with RS485 communication and Modbus-RTU protocol allows for seamless integration into existing energy management systems.

Here's a breakdown of its features and specifications:

General Information: 

Supported Systems: Three-phase three-wire and three-phase four-wire systems.
Measurable Parameters: Current, voltage, power factor, harmonic content, power, and energy for electric network phases L1, L2, and L3.
Communication: RS485 communication interface with Modbus-RTU protocol for real-time data transmission to a data center.

Feature Description: 

Mounting Type: Din Rail.
Models: Master Meter ME131M & Submeter ME131S.
Current Sensor Types: Rogowski coil and Voltage-output current transformer.
Wiring Systems: Supports various wiring configurations, including 3P4W_3CT, 3P3W_3CT, 3P3W_2CT, 1P3W, and 1P2W.
Application Field: Power analysis and energy consumption monitoring.
Display Screen: None.
Weight: ME131M - 122g, ME131S - 59g.
Dimensions: ME131M - 9.3 x 8.0 x 3.6 cm &  ME131S - 9.3 x 8.0 x 1.81 cm.
Color: White.

Current Measurement: 

Voltage Range: 0-900mVAC peak, 636 mV RMS.
Measurement Range: Varies depending on the current sensor used (Rogowski Coil or Voltage-output).
Voltage Output: 0~99999A.

Voltage Measurement: Measurement Range: 0~600VAC. Maximum Measured Value: 720VAC.

Digital Signal: Switching Output: 1-circuit electromagnetic relay output (3A 30V DC, 3A 250V AC). Switching Value Input: Optocoupler isolation (5kVrms).

Communication:RS485 Communication: One RS485 communication interface, two-wire half-duplex, baud rate: 2400bps~38400bps, Protocol: Modbus-RTU.

Power Supply: Power Supply Range: 85~265VAC/110~370VDC, 45~60Hz, (24V DC power supply version could be customized), Maximum Power Consumption: ≤3.5VA.

Measurement Parameters: 

Instantaneous Values: Phase voltage, line voltage, current, grid frequency, power factor, fundamental power factor, active power, reactive power, apparent power.
Energy: Active and reactive energy measurements, tariff energy.
Harmonics: Voltage and current harmonic distortion and values.
Phase: Phase sequence, voltage and current angles.
Demand: Maximum demand for active, reactive, and apparent power.
Unbalance: Voltage and current unbalance.
Max. & Min: Maximum and minimum values for voltage, current, active power, reactive power, and apparent power.

Accuracy: 

Current Measurement Accuracy: 0.1% + Current sensor accuracy.
Voltage Measurement Accuracy: ±0.2% (60V~600V AC).
Grid Frequency Accuracy: ±0.01% (45~65Hz).
Power Factor Accuracy: ±0.005.
IEC Standards: Meets various IEC standards for accuracy.

Environmental Conditions: 

Operating Temperature: -25°C to +60°C.
Storage Temperature: -40°C to +85°C.
Humidity Range: 5~95% RH, 50°C (non-condensing).
Pollution Class: 2.
Overvoltage Capacity: III, suitable for power distribution systems below 277/480VAC.
Altitude: Up to 3000m.
Anti-pollution Grade: IP20.

EMC (Electromagnetic Compatibility): 

Meets various EMC standards for electrostatic discharge, radiated immunity, EFT electrical fast burst immunity, surge immunity, conducted disturbance immunity, and power frequency magnetic field immunity.

Measurement Standards: 

Complies with various international measurement standards, including EN 62052-11, EN 61557-12, EN 62053-21, EN 62053-22, EN 62053-23, EN 50470-1, EN 50470-3, EN 61010-1, EN 61010-2, and EN 61010-031.