Class A Single-Phase Smart Prepayment Meter
(State Grid 20 Standard)
A smart electricity meter integrating metering, billing control, alarm, display, freezing, and communication functions.
Product Description
The DDZY208-M series Class A single-phase smart prepayment meter (remote, with built-in/external switch) uses advanced energy metering chips, a built-in hardware clock with temperature compensation, and an ESAM security encryption chip. Manufactured with advanced microelectronics technology and SMT processes, it integrates metering, prepayment, alarm, display, freezing, and communication functions to achieve residential electricity metering and consumption data storage. It features high accuracy, strong functionality, and excellent stability. It is available with built-in or external load switches and optional communication modules such as power line carrier and micro-power wireless. Its communication protocol complies with DL/T698.45 standard requirements.
Product Advantages
Metering Functions
Measures forward/reverse active energy, with configurable active energy combination, time-of-use metering, and tiered metering.
Freeze function
Daily freeze, hourly freeze, scheduled freeze, instantaneous freeze, preset freeze, and minute freeze.
Measurement and monitoring function
Measures operating parameters such as voltage, current, power, power factor, and neutral line current.
Event recording function
Records time calibration, programming, power failure, meter reset, cover opening, and switch on/off operations.
Display Functions
Features a large-screen LCD with Chinese characters and backlight. Display content can be toggled via buttons, and display items are flexibly configurable.
Fault indication function
Indicates faults through relevant symbols or characters on the LCD.
Remote demand control function
The meter receives remote commands such as breaker open, close, and power hold from the master station via communication, enabling effective demand control with secure authentication and encryption.
Local Prepayment Function (Optional)
The meter is equipped with an IC card slot and pre-loaded with tariff and balance information, supporting CPU card and remote electricity purchase.
Tariff
Multi-tariff metering with two sets of tariff time zones and time periods.
Communication Functions
Equipped with RS485 communication (1 port), infrared communication (1 port), and optional power line carrier communication.
Class A Single-Phase Smart Prepayment Meter
(State Grid 20 Standard)
DDZY208-M系列
DDZY208-M Series
| Standards | Q/GDW 10364-2020, DL/T698.45 |
| Rated Voltage | 220V |
| Current Specifications | 0.25-0.5(60)A, 0.5-1(100)A |
| Accuracy Class | Active Energy Class A |
| Frequency Range | 50Hz |
| Operating Voltage Range | 0.8Unom~1.15Unom |
| Operating Temp. Range | -40℃~+70℃ |
| MTTF | ≥16 years |
| Outline Dimensions | L×W×H=160mm×112mm×71mm |