DDS228 Single-phase Electronic Energy Meter
DDS228 Single-phase Electronic Energy Meter is a high-quality power metering product from Huabang Power Technology. Category: Wall-mounted Energy Meter Series. Model: DDS228. This product complies with relevant Chinese national standards (GB/T series) and is widely used in electrical metering, energy management, smart grid, industrial distribution and building energy monitoring applications. Features include high measurement accuracy, long service life, low power consumption and reliable operation in various environmental conditions. Multiple communication options (RS-485, MBUS, NB-IoT, 4G, LoRa) available depending on the model.
Key Features
- Brand: Huabang
- Category: Wall-mounted Energy Meter Series
- Model: DDS228
- 功耗：大规模集成电路技术及SMT工艺制造的高新技术产品，具有测量精度高、稳定性好、可靠性高、显示直观、过载能力强等显著优点。关键元器件选用国际知名品牌的长寿命器件，提高了产品的可靠性和使用寿命，数据显示采用液晶LCD，显示直观，同时具有红外通讯，方便用户对电能数据的管理。本仪表符合GB/T 17215.3
- 原理：:用户消耗的电能通过电流、电压采样;经过A/D转换送到乘法器相乘，乘积后信号再经过D/F转换器转换，分频电路输出的脉冲送入单片机CPU进行数据处理和计量，单片机CPU通过液晶进行电能数据的显示，通过485跟红外接口实现电能数据的抄读。
- 基本误差：见下表电流值功率因数COSΦ误差(%)1级2级0.05Ib≤I<0.1Ib1.0±1.5±2.50.1Ib≤I≤Imax1.0±1.0±2.00.1Ib≤I<0.2Ib0.5L±1.5±2.50.8C±1.5—0.2Ib≤I≤Imax0.5L±1.0±2.00.8C±1.0—
