適用范圍Application

DDSF877嗦列單相電子式多費率電能表用千測量單相220V、50Hz有功電能，它采用微處理器技術和高精度寬量程數字化電能計量芯片，設計具有高精度、寬蛋程、穩定性高、低功耗，結構端莊穩重。采用專用LCD或高亮度專用LED顯示，以及元器件生產，從而使電能表具有使用壽命長，免維護，抄表方便。該產品能正反雙向計量，具有—定防竊電能力，并提供脈沖輸出，方便用戶檢測，是國家推行分時電價政策的優選產品。

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.