Class A Single-Phase Smart IoT Energy Meter (State Grid Standard)

A smart energy meter integrated with energy metering, data processing, real-time monitoring, automatic control, environmental awareness, information interaction, and communication routing functions.

Product Description

The DDZM208-M Series Class A Single-Phase Smart IoT Energy Meter consists of a metering module, a management module, and an expansion module. Integrated with energy metering, data processing, real-time monitoring, automatic control, environmental awareness, information interaction, and communication routing functions, it is an energy meter fully adaptable to Internet of Things (IoT) requirements. Manufactured with advanced microelectronics technology and SMT production processes, it is characterized by high precision, robust functionality, and excellent stability. Its communication protocol fully complies with the requirements of the DL/T 698.45 “Telecontrol Equipment and Systems – Part 4-5: Communications Protocol – Object-oriented Interoperability Data Exchange Protocol” standard.

Product Advantages

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Metering Functions

Forward/reverse active energy metering, with configurable active energy combination modes; Time-of-Use (TOU) metering; forward/reverse fundamental and harmonic energy metering functions.

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Freeze Function

Forward/reverse active energy metering, with configurable active energy combination modes; Time-of-Use (TOU) metering; forward/reverse fundamental and harmonic energy metering functions.

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Measurement and Monitoring Function

Measures operating parameters including voltage, current, power, power factor, and frequency.

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Event Logging Function

Records events such as time synchronization, programming, power failure, meter reset, cover opening, connect/disconnect operations, clock battery replacement, self-monitoring error exceeding limits, residual current monitoring alarms, load switch misoperation, and terminal block temperature exceeding limits.

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Display Functions

Featuring a large-screen Chinese-character LCD display with a backlit prompt, the displayed content can be switched via keys, and the display items can be flexibly configured.

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Fault Indication Function

Indicates faults via relevant symbols or characters on the LCD display.

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Remote Prepayment Control Function

The energy meter receives commands such as disconnection, connection, and power preservation dispatched from the remote master station via communication to perform effective prepayment control, equipped with secure authentication and encryption.

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Communication Functions

Supports Bluetooth communication, with the Bluetooth communication supporting a master-slave coexistence mode of at least two masters and three slaves.

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Communication Module Interface

Supports 1 uplink module (such as power line carrier communication modules, low-power wireless communication modules, etc.) and 2 expansion modules (such as load identification communication modules, power quality communication modules, etc.).

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Remote Upgrade

The metering module and management module are separated, and the management module supports remote software upgrade.

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Other Functions

Terminal block temperature monitoring, multi-core modular operational monitoring, etc.