Product Introduction

The single-phase rail-type energy meter is a metering product launched by our company that can accurately measure the forward and reverse active energy. It adopts advanced dedicated bidirectional energy metering digital circuit chips and SMT manufacturing technology, highly integrated design and multiple anti-interference designs such as anti-static, lightning protection, transient interference suppression, etc. The key components are all low-power, long-life components of internationally renowned brands, anti-deformation, anti-corrosion, anti-aging, and good insulation and sealing performance. The key components include dedicated metering chips, CPU, crystal oscillator, circuit board, power transformer, etc. Its characteristics are bidirectional power measurement and counting, anti-theft, high precision, high reliability, high overload, low power consumption, light weight, low cost, and optical isolation of communication interface. With LCD display.

This product complies with all technical requirements for single-phase electronic energy meters in GB/T17215.321-2008 standard; at the same time, the optional Zigbee communication function can realize remote meter reading and monitoring, and the communication protocol supports DL/645-2007 “Multi-function Meter Communication Protocol”, and all performance indicators meet the requirements of DL/T614 “Multi-function Energy Meter”.

Functional features

1. Energy metering function
It has forward, reverse active energy and combined active energy metering, and the combined mode word is fixed to forward active + reverse active.

2. Data storage
When the power supply of the energy meter is cut off, the data in the meter can be saved for 10 years.

3. RS485 communication

• RS485 communication interface;
• The communication baud rate can be set, and the standard rate is 1200bps, 2400bps, 4800bps, 9600bps; the default baud rate of the RS485 interface design is 2400bps.
• The communication protocol of the electric energy meter complies with DL/T 645-2007 and its filing documents.
• The anti-interference performance of the RS485 communication interface complies with the requirements of DL/T 614-2007.
• The RS485 communication interface should be effectively electrically isolated from the internal circuit of the electric energy meter and have failure protection measures.
• Other communication methods are optional: the meter can be read by connecting the communication interface through the wireless zigbee module.

4. Electric energy pulse output

• It has optical pulse output and electrical pulse output that are proportional to the measured electric energy (active power).
• The optical pulse output uses ultra-bright, long-life LED devices, and the pulse width is: 80ms±20ms.
• The electrical pulse output has electrical isolation and can be collected from the front.

5. Measurement
It can measure total active power, current, voltage, and power factor.

6. Electricity control (optional)
The electric meter can be powered on and off remotely through software.