Class B/C/D Three-Phase Smart IoT Energy Meter (State Grid)
A smart energy meter with functions including energy metering, data processing, real-time monitoring, automatic control, environmental sensing, information exchange, and communication routing.
Product Description
The DTZM208/DHZM208 series three-phase smart IoT energy meter consists of a metering module, a management module, and an expansion module. It features energy metering, data processing, real-time monitoring, automatic control, environmental sensing, information exchange, and communication routing, and is designed to meet IoT requirements. It is mainly used for various power data measurement and metering applications in power plants, large users, distribution transformers, substation transformers, and various enterprises and institutions. It offers harmonic monitoring, safe electricity usage, and precise computation. Manufactured with advanced microelectronics technology and SMT production processes, it features high accuracy, strong functionality, and excellent stability. Its communication protocol complies with DL/T698.45 “Electric Energy Information Acquisition and Management System Part 4-5: Communication Protocol – Object-Oriented Data Exchange Protocol” standard.
Product Advantages
Metering Functions
Forward/reverse active energy metering with configurable active energy combination mode.
Time-of-use metering.
Forward/reverse fundamental and harmonic energy metering.
Time-of-use metering.
Forward/reverse fundamental and harmonic energy 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 frequency.
Event recording function
Records events including time synchronization, programming, power failure, meter reset, cover opening, breaker open/close, clock battery replacement, self-monitoring error exceeding limits, residual current monitoring alarm, load switch misoperation, and terminal block temperature exceeding limits.
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.
Communication Functions
Supports Bluetooth communication, supporting at least two masters and three slaves in a master-slave coexistence mode.
Communication module interface
Supports 1 uplink module (e.g., carrier communication module, micro-power wireless communication module) and 2 expansion modules (e.g., load identification communication module, power quality communication module).
Remote upgrade
The metering module is separated from the management module, and the management module supports remote software upgrade.
Other functions
Terminal block temperature monitoring, multi-core modular operation monitoring, etc.
Class B/C/D Three-Phase Smart IoT Energy Meter (State Grid)
DTZM208/DHZM208系列
DTZM208/DHZM208 Series
| Standards | Q/GDW 10827-2020 |
| Rated Voltage | 3x57.7V/100V;3x100V;3x220/380V |
| Current Specifications | 0.015-0.075(6)A, 0.4-1(100)A |
| Accuracy Class | Active Energy B, C, D, E; Reactive Energy Class 2 |
| Frequency Range | Fundamental Active Energy B, C, D, E; Harmonic Active Energy Class 5 |
| Operating Voltage Range | 50Hz |
| Operating Temp. Range | 0.8Unom~1.15Unom |
| MTTF | -40°C~+70°C |
| Outline Dimensions | ≥16 years |
| Q/GDW 10827-2020 | Length x Width x Height = 290mm x 170mm x 85mm |