The DDSY121 single-phase electronic prepaid tiered billing energy meter (RF card) is a new generation of energy meter developed and researched by our company, which has functions such as non-contact prepaid recharge, tiered billing, usage display, and fault alarm. High tech products utilizing large-scale integrated circuit technology and advanced microcontroller and RF IC card technology. This product complies with all technical requirements of GB/T17215-2008 "Special Requirements for AC Measuring Equipment - Static Active Energy Meters - Levels 1 and 2" and GB/T18460.3-2001 "IC Card Prepaid Electricity Sales System".

RF card single-phase electronic prepaid energy meter

The RF card single-phase electronic prepaid energy meter adopts a prepaid management mode. Users can purchase electricity with the RF card, and the meter can automatically power off after the electricity is used up to remind users to purchase electricity in a timely manner;

Using high-frequency RF card communication, it has the characteristics of fast read and write speed, strong anti-interference ability, and large storage capacity, and can achieve a one card management mode of "one power and three water" for one card;

Support two modes of tiered billing and electricity billing: tiered billing deducts based on the amount, while electricity billing deducts based on the amount of electricity. Up to four rates and four tiers can be set;

It has a two-level alarm function to remind users to purchase electricity in a timely manner, and can set hoarding amount values and overdraft amount values for meters to meet various management needs of users;

Automatically cut off power when overloaded and record the number of overload occurrences, and prevent accidental overload when capacitive loads are started;

The meter has RS485/M-BUS and infrared interfaces, which can achieve remote monitoring and handheld data reading;

Adopting LCD display with clear and intuitive backlight, users can query various usage data information;

The single rate price, multi rate price, and tiered billing price of the RF card single-phase electronic prepaid energy meter can all be converted through the function card, making the operation very convenient;

The RF card single-phase electronic prepaid energy meter is equipped with a high steady-state magnetic holding relay, which can realize alarm power on/off, and can also remotely control the user's electricity meter on/off through calculation.