Single-Phase Prepayment Smart Energy Meter

The single-phase prepayment smart energy meter is an intelligent energy metering product developed and produced to meet the requirements of the national grid. It utilizes imported main control chips and advanced SMT technology, featuring advantages such as remote power disconnection/connection, remote meter reading, high reliability, high accuracy, long lifespan, anti-tampering, multifunctionality, and security. It operates over a wide voltage range and requires no adjustment after leaving the factory, making it widely suitable for urban, rural, or industrial single-phase AC power applications. It is compatible with DL/T645-1997 and DL/T698.1-2007 protocols.

Features:

Capable of measuring forward, reverse, and combined active energy.

Equipped with RS485, infrared, and carrier communication interfaces; the carrier module is pluggable and supports modules from Neusoft, Xiaocheng, and Topstar.
Rich LCD display with power-off display and backlight functions.
Supports time-of-use billing with four tariffs, 14 time periods, and two annual time zones; allows setting special tariff periods for holidays and public rest days.
Supports settlement function with up to three settlement points per month and records historical data for the last 12 settlements.
Cover opening alarm and recording function, with each event recorded up to 10 times.
Multiple measurement, detection, and freezing functions; supports remote meter reading, power disconnection, power connection, and query.
Alarm functions for over-power, reverse power, and hardware faults.
Automatic cycle display and button-activated display, with configurable display items.
Network payment options, such as online banking, bank counters, or mobile payments via WeChat, APP, and query (extended).

Main Technical Parameters

Rated voltage: 220V

Rated current: 1.5A

Rated frequency: 50Hz, operates within a grid frequency range of 45Hz to 65Hz

Basic error: Complies with GB/T17215.321-2008 requirements

Creep: With 115% of rated voltage applied and no current in the current circuit, the meter's test output shall not produce more than one pulse; equipped with logical anti-creep function.

Power consumption: Voltage circuit (non-communication state): 1.5W, 10VA

Voltage circuit (communication state): 3W, 12VA

Current circuit consumption: 1VA (Ib)

Temperature and humidity range: