| Brand | POWERTECH |
| Model NO. | Single-phase fee-controlled smart watt-hour meter DDZY71-Z |
| Rated voltage | 220V |
| Rated frequency | 50（Hz） |
| Series | DDZY71-Z |
Description
DDZY71-Z/DDZY71-J series single-phase fee-controlled smart energy meter is used to measure AC single-phase active energy with a rated frequency of 50Hz.
The product adopts national standards and industry standards such as GB/T 17215.321-2021 "Special Requirements for Electrical Measuring Equipment Part 21: Static Active Energy Meters (Class A, B, C, D and E)" and GB/T 15284-2002 "Special Requirements for Multi-rate Energy Meters" and 2020 Standard "Technical Specifications for Single-phase Smart Energy Meters".
The communication protocol complies with the DL/T698.45 standard.
Industry applications
It is used to measure the consumption of electrical energy and is generally widely used in household and industrial electricity consumption.
Features
It adopts a special metering chip with high quality, high precision, high sensitivity, high stability, wide range and low power consumption.
The voltage sampling loop adopts the resistor voltage divider method.
The current sampling loop adopts high-quality, high-precision, high-stability, wide-range manganese-copper shunt or transformer.
The display adopts an LCD display with wide viewing angle, high contrast, UV protection, and reliable performance.
Application of digital processing technology and SMT process.
The structure is firm, flame retardant, anti-aging, and has good sealing performance. The structure of the case is unified and simple, beautiful and exquisite, and easy to install.
Technical parameters
| The way the electric energy meter is connected to the line | Standard reference frequency |
Accuracy rating |
Voltage (V) Unom |
Current (Ah) Imin Itel (Imax) |
Direct |
50Hz | Active grade A |
220 | 0.25-0.5（60） |
| 220 | 0.5-1（100） |
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