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RS485 Modbus Meter

EM113016-04 1p RS485 Remote Control Postpaid Smart Energy Meter with Latching Relay

EM113016-04 is a mono-phase Din Rail meter and it is a RS485 meter. It supports RS485 Communication.This meter has two display modes: automatic scroll display and by pressing page-turning buttons. When overload, alarm will be sent by LED backlight and built-in relay will disconnect.This RS485 meter can read and write data via RS485 and realize remote control via relay. The meter is designed to measure AC active energy and variable parameter. All of its functions comply with the relative technical requirement for class 1 three phase watt hour meter in IEC61036 and its data communication rules obey the requirement of DL/T645. It is a long life meter with the advantage of high stability , high over load capability , low power loss and small volume.


1. Brief introduction

The EM113016-04 is a versatile electricity meter with latching relay designed for single-phase applications. It's equipped with a range of features that make it suitable for both residential and commercial use.

Multi-functional Measurement: Accurately measures active and reactive power, voltage, current, power factor, frequency, demand, and energy consumption.

RS485 Communication: Supports MODBUS, DLT645-1997, and DLT645-2007 protocols for seamless integration with various systems. Enables remote reading, control, and configuration.

LCD Display: Provides clear and customizable display of measured parameters. Users can configure the display sequence and interval to meet specific needs.

Built-in Latching Relay: Equipped with a relay for automatic disconnection in case of overloads or other abnormal conditions, ensuring the safety of connected equipment.

Alarm Function: Features a multi-level alarm system with visual and audible indicators to alert users of potential issues.

High Accuracy: Meets Class 1 accuracy standards for reliable measurement results.

Wide Operating Range: Designed to operate in a wide range of temperatures and humidity levels.


2. Function description

  • Nominal Voltage (220V/230V): The energy meter is designed for single-phase AC circuits with a nominal voltage of 220 volts or 230 volts. 

  • Rated Current 5(80)A: The meter has a rated current range of 5 to 80 amperes, making it suitable for a wide variety of residential and commercial applications. 

  • Pulse Constant: The meter generates 1600 pulses per kilowatt-hour, enabling precise energy measurement and data logging. 

  • Display: The energy meter features a 5+1 digit LCD display for clear and comprehensive readings of various parameters. 

  • Frequency: The meter is designed for 50 Hertz AC systems. 

  • Accuracy Class: The meter conforms to Class 1 accuracy standards, ensuring highly precise measurement results. 

  • Starting Current: The meter begins to register energy consumption when the current reaches 20 milliamperes. 

  • Power Consumption: The meter's power consumption is less than 8 volt-amperes and 0.4 watts, minimizing its impact on the overall system.

  • Post-paid type


3. Benefits

Accurate Measurement: Ensures reliable data for billing and energy management.

Remote Monitoring: Enables real-time monitoring of energy consumption and system status.

Flexibility: Supports multiple communication protocols and offers customizable settings.

Reliability: Built to withstand harsh environments and provide long-term performance.

Cost-effective: Offers a good balance of features and cost.


4. Application

Residential: Monitoring energy consumption for households.

Commercial: Sub-metering, demand management, and energy auditing in commercial buildings.

Industrial: Monitoring electrical loads in industrial processes.

Data Acquisition Systems: Integration into data acquisition systems for remote monitoring and control.

5. What's the benefits of 1p RS485 Energy Meter with Latching Relay?

1. Remote Control Function

  • Turn on/off the load: Through the RS485 interface, you can remotely control the relay built in the energy meter to turn the load on and off. This is very useful in scenarios where remote control of electrical equipment is required, such as:

  • Remote power off: When an abnormal situation occurs (such as overload, leakage), the load can be remotely disconnected to prevent accidents.

  • Remotely control lighting: In smart home systems, the on/off of lighting equipment can be controlled remotely based on time, light intensity, and other conditions.

  • Improve system automation: The remote control function can integrate the energy meter into the automated control system to realize unattended and automated energy management.


2. Data Acquisition and Monitoring

  • Real-time data acquisition: The energy meter can collect various electrical parameters in real time, such as voltage, current, power, power factor, etc., and transmit the data to the host computer through the RS485 interface.

  • Data analysis and monitoring: The host computer can analyze the collected data, generate various reports, help users understand the power consumption situation, find anomalies, and optimize.

  • Improve power efficiency: By analyzing the power consumption data, peak power consumption periods can be found, power loads can be optimized, and power efficiency can be improved.


3. Multifunctionality

  • Multiple protection functions: The energy meter has multiple protection functions, such as overload protection, short circuit protection, leakage protection, etc., which can effectively protect electrical equipment and personal safety.

  • Multi-rate metering: Supports multiple rate metering to meet the needs of different users.

  • Multiple communication methods: In addition to the RS485 interface, it can also support other communication methods, such as Modbus, DLT645 etc.


4. Easy Installation and Maintenance

  • Standardized interface: The RS485 interface is a standardized communication interface that is easy to connect with other devices.

  • Modular design: The energy meter adopts a modular design, which is convenient for replacement and maintenance.


5. Wide range of applications

  • Industrial automation: Used to monitor and control the power consumption of industrial production processes.

  • Building automation: Used to monitor and control the power consumption in buildings.

  • Smart home: Used to realize smart home power management.

  • New energy generation: Used to monitor and control the operation of solar, wind, and other new energy generation systems.


In summary

A 1P RS485 energy meter with a relay has many advantages such as remote control, data acquisition and monitoring, multifunctionality, easy installation and maintenance, and is widely used in modern energy management systems. With the continuous development of technologies such as the Internet of Things and big data, the intelligence level of energy meters will continue to improve, providing users with more convenient and efficient power services.

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