Single-phase IoT Bluetooth Parent-child Electricity Meter (Type DDZY2397)

DDZY2397 single-phase IoT Bluetooth parent-child electric energy meter consists of one parent meter and multiple child meters. It adopts digital signal processing chip, permanent storage of information, standard Bluetooth, LoRaWAN, Cat1 and WiFi communication interface, LCD and other technologies. The advanced SMT surface mounting process is adopted for the electric energy meter. The shell is made of high-strength, flame retardant and environment-friendly materials, which is novel, beautiful and applicable. It has high insulation strength and corrosion resistance. The meter integrates many functions, including electric energy metering, information storage and processing, information interaction, etc.

Product Selection Table

Product Features

The single-phase IoT Bluetooth child meters and parent meter exchange data wirelessly via Bluetooth. The transmitted data contains relevant information for the corresponding receiving meters, which are processed after comparing the information. This solution is suitable for situations where energy meters are installed densely, eliminating the need for RS485 wiring and making the overall deployment more convenient and cost-effective.

Example: the platform issues instructions that are sent to the corresponding parent meter through the communication interface of LoRaWAN/NB-IoT/Cat.1/WiFi (optional). The parent meter then transmits the instructions to the child meters via Bluetooth. Upon receiving the data, the child meters within multiple ranges will perform corresponding operations based on the child meter information in the data. When the child meters upload data through Bluetooth, the data also contains the entered parent meter information, and the corresponding parent meter sends back the data to the platform after receiving it.

Product Functions

1.Communication modes: Built-in Bluetooth/LoRaWAN/NB-IoT/Cat.1/WiFi communication modules and SIM cards, suitable for 4G/5G operator networks.

2.Electric energy metering: the function of measuring positive active and negative active electric energy. It can measure, store and display the voltage, current, power, power factor, frequency and other operating parameters and status of the current watt hour meter. 

3.Remote on-off: send power off command through Bluetooth/LoRaWAN/NB-IoT/Cat.1/WiFi communication modes to cut off the user's load circuit. Or send the power transmission command to connect the user load circuit.

4.Data communication: active upload/two-way transparent transmission function. Actively transmit data to the corresponding platform through Bluetooth/LoRaWAN/NB-IoT/Cat.1/WiFi (optional) wireless network. The default interval is 4 hours (settable).

5.Power Limitation: optional maximum power limitation and intelligent anti-theft electricity. It has overload protection function.

Technical Parameters

Display Description

After powering on, the LCD screen will fully display for 3 seconds. Then display the current active electrical energy and current active power alternately.

Wiring Diagram

The main terminal wiring is as shown in the figure: [1] is Phase In. [2] is Phase Out. [3] is Zero In. [4] is Zero Out. Above the main terminals of the electricity meter, there are auxiliary terminals. Among them, [9] and [10] are metering pulse outputs. 

Overall Dimension