WL-K Multi User Prepaid Smart Energy Meter
KX prepaid control type 1.5-6A transformer type RS485 network/RF card network communication
product overview
This meter is a new type of prepaid energy meter independently developed by our company, which can be used by 36 households (39 households) single-phase or 12 households (13 households) three-phase users at the same time (single-phase and three-phase can also be mixed on the same meter). It uses a high-frequency RF card (Ml card) as the link for data transmission. The M1 card has the advantages of contactless, anti attack, large capacity, good encryption, stable data transmission, and long service life. This meter can also be connected to the network through RS485, and up to 256 meters can share a card reader. Users do not need to swipe their card at the meter after purchasing electricity, and can automatically copy the electricity consumption information of each household through a computer at any time, making it easy for management departments to timely calculate the electricity consumption of each month. It is an ideal product for electricity measurement and control in enterprises and institutions, urban residential areas, student apartments, old building meter renovation, high-rise buildings, and other areas.
Functional Features
Small size, low power consumption, and high precision.
◆ It has a prepaid function, power outage for overdue payments, and various payment forms.
Low battery alarm function: The alarm battery level can be set. When the user's electricity consumption is lower than the set value, the battery level display window of the meter will automatically flash or give a power-off prompt to the user.
Overload protection (current limiting) function: When the user's load exceeds the maximum allowable load, the user automatically loses power protection.
◆ It can simultaneously measure and detect 36 households (39 households) of single-phase or 12 households (13 households) of three-phase, as well as any combination of single-phase and three-phase for households below 36 households (39 households).
The metering circuit and communication/display circuit adopt a dual CPU structure, with one CPU responsible for metering and the other for communication, display, and indication. Communication does not affect metering.
According to user requirements, external card swiping type, built-in card swiping type, and networked remote control type can be produced.
Data security: Various parameters of the electricity meter are encrypted to ensure data security.

management style
RS485 dedicated line method: RS485 dedicated line method can be used to achieve remote management of various energy consumption data for users.
LAN mode: Utilizing the customer's intranet mode to achieve remote data transmission based on TCP/IP protocol and remote management of various energy consumption data.
Other communication methods: telephone network, fiber optic transmission network, etc., managed by computers.
Infrared handheld terminal method: Through the infrared handheld terminal, electricity meter data and information can be uploaded to the computer and managed by the management center computer.
◆ RF card method: Prepaid electronic control function can be achieved through card swiping terminals and readers, and managed through the management center computer.
GPRS/CDMA mode: mobile communication management, which can use mobile communication tools to achieve remote data transmission and remote management of various energy consumption data.