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DDS6868型单相液晶显示电子式电能表采用专用大规模集成电路以SMT生产工艺制造的产品，具有防窃电、防反接、高准确度、高可靠性、高过载、功耗小、体积小和重量轻等特点。适用于计量额定频率为50Hz~60Hz单相交流有功电能。本产品各项技术性能符合GB/T17215.321-2008《1级f,132级静止式交流有功电能表》中的技术要求。
DDS333 type single—phase electronic watt—hour meter(LCD)adopts large—scale integrated circuit and SMT,with many obvious features like electric larceny prevention，reverse connection prevention，high accuracy,high reliability,high over load，low power consum ption，small volume，light weight，etc．It is suitable for measuring single—phase AC active energy of rated frequency 50Hz．Each per—formance of this product is in line with the technical requirements of GB/T17215.321-2008 Alternating Current Static Watt—hour Meters for Active Energy(Classes 1 and 2)．
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