适用范围Application

DDSF877嗦列单相电子式多费率电能表用千测量单相220V、50Hz有功电能，它采用微处理器技术和高精度宽量程数字化电能计量芯片，设计具有高精度、宽蛋程、稳定性高、低功耗，结构端庄稳重。采用专用LCD或高亮度专用LED显示，以及军用元器件生产，从而使电能表具有使用寿命长，免维护，抄表方便。该产品能正反双向计量，具有—定防窃电能力，并提供脉冲输出，方便用户检测，是国家推行分时电价政策的优选产品。

DDSF8777series single-phase electronic multi-tariff watt-hour meter is for measuring active energy of single phase 220V and 50Hz, it adopts the latest MPU tech-nology and digital energy measurement chip of high accuracy and wide range, it has many features such as high accuracy, wide range, high stability, low power consumption and graceful appearance. Because LCD or LED and military components are used, it is characterized with long service life, free maintenance and convenient meter reading. It can measure positively and negatively, and has ability of anti-electricity theft and output pulse, to take convenience for detecting. It is the first selection product for implementing national time-sharing electricity price policy.