我的公强要了我在线观看_欧美特级黄片一级_在线午夜免费视频_综合网欧美亚洲10页_成Av人片狼友最新扒开_特黄特色的视频免费观看_亚洲国产成α人v在线观看_亚洲国产欧美日韩精品一区二区

適用范圍 Application

DDS2121單相智能表系我公司研制開發的單相全電子式電能表。該表性能符合 GB/T17215.321-2008 國家標準和標準 IEC62053-21 中 1 或 2 級單相電能表的相關技術要求，可直接精確地測量額定頻率為 50Hz 或 60Hz 的單相交流電網中有功電能，由 LCD 液晶顯示總用電量；具有可靠性好、體積小、重量輕、外形美觀、安裝靈活方便等特點。

Model DDS2121 single phase electronic DIN rail active energy meter is a kind of new style single phase two wire active energy meter, it adopts micro-electronics technique, and imported large scale integrate circuit,uses advanced technique of digital and SMT techniques,etc. The meter completely accords with relevant technical requirements of class 1 single phase active technical requirements of class 1 single phase active energy meter stipulated in international standard IEC62053-21. It can accurately and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net, This meter has seven digits LCD monitors shows the active energy power consumption.It has following features: Good reliability, small volume,light weight, specious nice appearance, convenient installation, etc.