Electronic digital display meter with highly innovative design

Three phase electronic multifunctional digital display meter (also known as panel meter, embedded meter), designed according to GBT/IEC standards, has various functions such as power parameter measurement, power statistics, power quality analysis, event alarm, event recording, network communication, etc; In addition, it is equipped with rich DI/DO modules and extended communication interfaces, which can flexibly achieve switch status monitoring and environmental element monitoring. This product is mainly used for monitoring the quality of power supply in the power grid, and is suitable for various types of distribution room control cabinets, secondary distribution cabinets, photovoltaic storage grid connected cabinets, etc.

1、 Performance Description of Electronic Digital Display Meter
1. Electronic digital display function
Electronic digital display meter communication method: RS485 communication, communication protocol supports Modbus and DTL645-2007 dual protocols, with a  baud rate of 115200bps;
Y-Bus communication, capable of connecting various sensors (temperature and humidity sensors, leakage current sensors, insulation resistance sensors, wire temperature sensors, water level sensors, smoke sensors, human body sensing sensors, etc.)
Electronic digital display meter measurement data: current, voltage, active power, reactive power, apparent power, power factor, demand (power/current), neutral line voltage and current; Support bidirectional measurement
Electronic digital display meter rate function: measures active rate electricity, reactive rate electricity, active power rate demand, reactive power rate demand, and apparent power rate demand, supporting 6 rates and 10 time periods.
Electronic digital display meter harmonic function: voltage total harmonic, current total harmonic, supports 2-63rd harmonic division
Electronic digital display meter DI input interface: Four way DI (switch quantity) input interface, detecting the status of related components
Electronic digital display meter DO output interface: Two DO output interfaces, normally open contact AC250V/5A (DC30V/5A) can control the action of external devices
Electronic digital display meter event alarm: overvoltage, overcurrent, overload, low power factor, frequency deviation, phase loss, phase sequence detection, voltage imbalance, current imbalance, etc. When the alarm occurs, the LCD backlight flashes
Electronic digital display event recording: overvoltage, overcurrent, overload, low power factor, frequency deviation, phase loss, phase sequence detection, voltage imbalance, current imbalance, Soe event; Record the date, time, and related parameters of the occurrence.
Electronic digital display: dot matrix LCD display with backlight
Electronic digital display function buttons: Various data queries and parameter settings can be performed through the buttons. CT/PT ratio, communication parameters, Modbus communication address, and alarm threshold can all be set through the function buttons.

2. Technical parameters
Working voltage: AC 85~276V/DC 95~350V
Sampling voltage: 57.7-400V AC (L-N) 100-690V AC (L-L) three-phase three wire/three-phase four wire compatible
Sampling current: 5 (6) A (allowing 1.2 times overload)
Accuracy level: active 0.5S, reactive 2.0
Standard: IEC 62052-11   2020、IEC 62053-22  2020、IEC 61557-12  2021、GB/T 17215.211—2021 The GB/T 17215.321—2021
Frequency: 50/60Hz
Protection level: Level II
Temperature range: -40~70 ℃
Humidity range: ≤ 95%
Altitude: ≤ 2000 meters

2、 Installation instructions for electronic digital display meter
The installation of electronic digital displays requires experienced electricians or professionals who have completed reading this user guide;
During the installation process, if there are obvious signs of damage to the shell caused by severe impact or falling, please do not install or power on, and contact our company in a timely manner;
Electronic digital displays should be installed in an environment with no corrosive gases in the air;
Electronic digital displays should be wired according to the wiring diagram on the terminal box, preferably using copper wire or copper wire connectors.
3、 Installation instructions for electronic digital display meter
1) The opening size for the installation position of the distribution cabinet is 87mm × 87mm
2) Take out the electronic digital display and remove the fixed buckle
3) The electronic digital display meter is installed through the front mounting hole, as shown in Figure 4
4) Insert the electronic digital display meter fixing buckle and fix the electronic digital display meter as shown in the following figure

4、 Explanation of Characteristics of Electronic Digital Display Meter
1. Y-Bus communication can connect various sensors, with the  common being temperature and humidity sensors, to control the heating and dehumidification devices inside the control cabinet; Eliminating the temperature and humidity control device can save costs of over 100 yuan and simplify the installation process.
2. The applicable temperature range is -40~70 ℃, which basically meets the environmental requirements of various provinces and cities

Electronic digital displays have the core advantages of high precision, intuitive display, multifunctionality, low maintenance costs, and strong environmental adaptability, and are widely used in industries such as power, scientific research, and healthcare. Its technical characteristics not only improve measurement efficiency, but also provide basic support for intelligent and remote monitoring, making it an indispensable key equipment in modern measurement and control systems.