Chint DDS666 Series Single-Phase Electronic Watt-Hour Meter

The Chint DDS666 Series Single-Phase Electronic Watt-Hour Meter is a metering device specifically designed for residential users, supporting high-precision electrical energy measurement and intelligent management.

I. Core Functions and Features

1. High-Precision Metering

– Supports metering of forward and reverse active electrical energy; reverse electrical energy is automatically accumulated as forward energy.

– Accuracy classes are available in Class 1 or Class 2, meeting metering requirements for different scenarios.

2. Flexible Display and Communication

Display Mode

– Meter counter display (mechanical digits) or LCD display (backlight optional).

Communication Interface

– The LCD version comes standard with infrared and RS485 interfaces, supporting the DL/T 645-1997/2007 communication protocol. It can be connected to power systems to realize remote meter reading and data management.

3. Wide-Range Adaptability

Voltage Range

– Supports 220V±20% (extended range: 0.8Un~1.2Un), adapting to power grid environments with large voltage fluctuations.

Current Specifications

– Multiple options are available, including 1.5(6)A, 5(40)A, 10(60)A, and 20(100)A, meeting the electricity needs of different households or small commercial users.

Temperature Range

– Operating temperature: -25℃~+55℃; extreme temperature: -40℃~+70℃, suitable for harsh environments.

4. Low Power Consumption and Reliability

– Power consumption of voltage circuit ≤ 2W/5VA; power consumption of current circuit ≤ 1VA, ensuring energy efficiency during long-term operation.

– Adopts industrial-grade components and SMT (Surface Mount Technology) process, featuring strong anti-interference capability and a service life of over 10 years.

II. Model and Price Reference

**Note**: Prices may fluctuate due to differences in sales channels and regions. For specific quotations, please refer to WhatsApp: 0086-13811255435.

III. Installation and Usage Guide

1. Installation Method

Dimensions

– The meter counter display model has dimensions of 150mm×118mm×59mm, and the LCD display model is 160mm×112mm×58mm, both compatible with standard meter boxes.

Wiring

– Adopts 4 terminal blocks (1 for live wire input, 2 for live wire output, 3 for neutral wire input, 4 for neutral wire output). Installation must be performed by a professional electrician to ensure secure wiring and no short circuits.

2. Usage Precautions

– Avoid installation in humid, high-temperature, or strong magnetic field environments; it is recommended to install the meter in a well-ventilated location.

– Clean the meter body regularly to prevent dust accumulation from affecting heat dissipation and display performance.

– If verification is required, contact a professional metering institution; do not disassemble the meter by yourself.

3. Remote Meter Reading Configuration

– Connect to a concentrator or intelligent meter management system via the RS485 interface, supporting batch data collection and analysis.

– Can be used with the Chint Cloud Platform to realize functions such as real-time electricity consumption monitoring and electricity fee statistics (additional communication module is required).

IV. Common Issues and Maintenance

1. Troubleshooting

No Display

– Check if the power supply is normal, if the fuse is blown, or try restarting the meter.

Communication Failure

– Confirm whether the RS485 wiring is correct and whether the baud rate setting matches the system.

Abnormal Metering

– If inaccurate metering is suspected, use verification equipment to test the pulse output or contact the power supply department for verification.

2. Maintenance Recommendations

– It is recommended to conduct a comprehensive inspection every 5 years to ensure metering accuracy and equipment stability.

– Disconnect the power supply when the meter is not in use for a long time to extend its service life.

V. Recommended Alternative Models

If the DDS666 cannot meet your needs, the following models can be considered:

1. DDSY666 Prepayment Watt-Hour Meter

– Supports Bluetooth recharge and payment via mobile app, suitable for scenarios requiring prepayment management.

– Equipped with over-load protection and balance alarm functions to avoid power outages due to unpaid fees.

2. DDSU666 DIN-Rail Watt-Hour Meter

– Compact size, can be installed on a 35mm DIN rail, suitable for scenarios with limited space in distribution boxes.

– Supports the Modbus protocol, facilitating integration into industrial automation systems.

VI. Purchase and After-Sales Service

Purchase Channel

– Chint Electric official website; WhatsApp: 0086-13811255435

With its high reliability, flexible configuration, and cost-effectiveness, the Chint DDS666 Series Meter is an ideal choice for household and small commercial users. Strictly following the operation specifications during installation and use ensures long-term stable operation of the equipment.