Idea Field Co., Ltd.

Single-Phase Energy Meter ECM91｜RS485 Communication & High-Precision Measurement

The ECM91 is a single-phase energy meter designed primarily for monitoring and managing energy consumption in residential and small commercial facilities. This meter supports AC low-voltage systems of 220V/230V/240V and accurately measures and displays voltage (U), current (I), power (P), and energy consumption (kWh). The LCD display shows up to 999,999.9 kWh with a 6+1 digit format, and it features an RS485 port supporting MODBUS RTU communication, enabling remote data collection and management.
Key Features
- Multi-Function Display: Measures and displays voltage, current, power, and energy consumption.
- LCD Display: 6+1 digit display for easy visualization of energy consumption.
- Password Protection: Prevents unauthorized operation with password protection.
- RS485 Communication: Supports MODBUS RTU protocol for remote data management.
- Compact Design: Small dimensions of 100mm x 36mm x 65mm, easily mountable on a 35mm DIN rail.
- Indicator LED: LED pulse output indicator.
Specifications
- Supported Voltage: 110V / 120V / 220V / 230V / 240V AC
- Measurement Range: Voltage (U), Current (I), Power (P), Energy Consumption (kWh)
- Display Format: 6+1 digit LCD display (up to 999,999.9 kWh)
- Dimensions: 100mm × 36mm × 65mm
- Mounting Method: DIN rail (35mm DIN standard ED5002)
- Communication Port: RS485 (supports MODBUS RTU)
- Standard Compliance: IEC62053-21
Applications
The ECM91 is ideal for monitoring and managing electricity consumption in residential and small commercial facilities. It is especially suited for environments requiring energy management, offering real-time data acquisition and remote monitoring capabilities.
The ECM91 provides a compact and highly functional solution, supporting accurate data collection and efficient energy management.
For more details, please download the PDF or feel free to contact us.

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