Main Features (Features)

The meter structure adopts modular design, with strong anti-interference ability and stable performance;

※ It has real-time power display function, which can display the user's electricity load in real time;

The electric meter adopts a dedicated three-phase energy metering chip, which has a short measurement cycle, high accuracy, stable performance, and long service life,

Each household's electricity meter measures independently, with high accuracy, centralized display, and no interference between households;

※ Can measure and detect simultaneously, 13 households (three-phase)

The meter box has a small volume and is easy to install, maintain, and upgrade;

Accurate measurement, long service life, effective prevention of electricity theft, and easy management;

The power supply adopts a filling transformer, which reduces the electromagnetic interference of the power supply on weak current circuits:

※ It has a power phase loss indication function;

The internal power supply is three-phase, but there is a phase loss in the power supply. The electricity meter works as usual;

Data Security: Various data parameters of the electricity meter are encrypted using encryption algorithms to ensure data security;

In the same meter, the outgoing current can be different. But the current size cannot exceed the maximum current in this table;

The incoming and outgoing lines of the electric meter use dedicated wiring terminals, which are convenient for on-site construction;

The communication circuit design of the electricity meter adopts lightning protection circuit and photoelectric isolation. The communication circuit is separated from the electricity meter circuit to reduce the damage of lightning strikes to the electricity meter;

The interface of the electric energy signal acquisition module adopts a computer specific interface, which has been specially processed to ensure reliable signal transmission;

The measurement circuit and communication/display circuit adopt a dual CPU mechanism, which does not affect the measurement during communication;

Effective prevention and control of electricity theft;

Add relay detection function inside the electric meter, which can detect the status of the relay online through software. The software can judge the quality of the relay by itself;

The electric meter has a phase loss protection function. For three-phase users, if there is a phase loss caused by power supply phase loss or relay failure, it can automatically perform phase loss protection to ensure the safe operation of the user's three-phase equipment;

The electric meter drive circuit adopts a dedicated chip, with a simple circuit, fewer fault points, strong anti-interference ability, and more reliable operation;

Main functional description:

2. Realize on/off control of the circuit through internal dedicated modules;

3. Multiple optional management modes based on prepaid management;

A)、 Prepaid management, purchasing electricity first and then using it;

B）、 First use electricity and then pay, users can pre-set the maximum power consumption;

C）、 Electricity usage statistics without power interruption;

4. Maximum power consumption setting and control management;

5. High measurement accuracy, reaching level 1.0 (according to national standards, secondary measurement is required to be 1.0-1.5);

6. Collect electricity consumption data for each room;

7. Fault diagnosis (software automatically prompts error codes);

8. The recharge query device is equipped with buttons, which can offline query various parameters of the on-site electricity meter, as well as a series of cost parameters such as total electricity consumption, purchased electricity consumption, remaining electricity, and real-time current, voltage, and power factor, completely avoiding electricity disputes.

9. Can achieve network query, telephone query, and printing;

10. Data storage, backup, running logs, password protection, hierarchical authorization;

11. When the load end is short circuited, it can achieve power-off protection, query the electricity information of each household, and achieve full or partial on-off, and the system automatically performs power on/off actions.

12. Electricity metering and billing: After pre paying the electricity bill through the computer sales management system, the computer saves the data in the equipment, and the system calculates the cumulative reduction of pre stored electricity for each household.

13. The electric meter has a low battery alarm function: it can set the alarm battery level. When the user's remaining battery level is lower than the alarm value, the electric meter will alarm and prompt the user to purchase electricity. Without the need to power off the unit.

1) The display screen shows an alarm

2) Using the user's room phone to call the alarm (SMS prompt after loading the SMS module)

3) The system automatically prints the report and posts it for publication

4) Buzzer alarm on data manager

14. Pre order electricity, no charge shutdown: When the user's remaining electricity is zero, the system automatically cuts off the user's electricity consumption. After the user purchases electricity again, the system immediately resumes power supply to the user.

15. Forced power outage: The system can control the forced power outage and transmission of electricity to users. It can control the on/off of all electricity users uniformly, or control the on/off of any user individually.

16. If the power exceeds the limit, it will automatically power off. If the number of power outages is within a certain range (which can be set), it can automatically power on as a warning. If it exceeds the set value, it will no longer power on and wait for the operator's handling.

17. It has the function of electricity consumption statistics report, and the prepaid meter should be able to calculate the monthly and cumulative electricity consumption of each household like the postpaid meter.

18. It has the function of adjusting electricity prices and electricity quantities (customized time of use meters are required), which means that when the current electricity price changes, the remaining electricity of the user should be automatically adjusted according to the electricity price.

19. In addition to networking functions, the card reader also has the ability to sell, query, and restore power to RF cards. The card reader has a LCD display screen, which can realize functions such as remaining power query, parameter setting, and power restoration.

20. Server data storage: In order to prevent client data loss and other situations, it is required that the database can store the database server separately from the client, and at the same time have query opening functions to facilitate multi-level management queries.

21. System security and data security facilities

A. Data statistical analysis: Monitoring interruptions can not only provide users with electricity consumption data and historical records such as purchased electricity and remaining electricity, but also enable data statistical analysis of electricity terminals and summary tables, facilitating property management work.

B. The system has data storage function: when the system loses power, the storage time of historical records is not less than 12 months, and it has data backup function. After restoring power, the system can automatically restore power to the equipment.

C. Load control and monitoring: In order to protect the safety of the main point network operation and prevent the main power grid from running under overload or full load conditions for a long time, the system can achieve load control and monitoring for each user.

D、 It has the function of automatic average allocation of public electricity.

22. Users' electricity usage status can be read online: By operating the management software, users' electricity usage status can be read online. If there is a power outage user, the system will automatically analyze user fees, identify malicious loads, over power, timing, etc., making it convenient for property management personnel to manage their work. (As shown in the figure)

23. Equipped with full screen monitoring function: Each user can be monitored through a computer, and the remaining power consumption information and malicious load situation of the user can be grasped in real time.

24. Real time power display function: By operating the management software, accurate data such as user's power consumption and functional factors can be displayed in real time, greatly facilitating the data export function. As the user's power consumption time increases, the user's power consumption data in the management center computer will also increase. In order not to affect the running speed of the computer, the user's power consumption data can be exported for easy data storage.

25. Data export function: As the user's electricity consumption time increases, the user's electricity consumption data in the management center computer will also increase. In order not to affect the running speed of the computer, the user's electricity consumption data can be exported for easy data storage.

Main technical indicators

※ Rated voltage: 3 * 220/380v

※ Operating voltage range: AC180~260V

Calibration current: 1.5（6）A

※ Pulse constant: 3200 imp/kWh

Accuracy constant: Level 1.0

Measurement division: 0.1 degrees

Data protection: Data will be retained for more than 10 years after a power outage.