DDSF833 электронный однофазный разных скоростях ватт-хо

DDSF3333 electronic single phase multi-rate watt-hour meter Goods description: DDSF3333 watt-hour meter is made of electronic single-phase meter modules and rates modules, LCD display, high reliability and infrared communication fuctions.Its performance conforms to GB/T 15284-2002 multi-rate(TDM) meter, GB/T 17215.321-2008 1.0&2.0 Class static A.C active watt-hour meter, the communication protocol comply with DL/T645-1997 or DL/T645-2007. Goods fuction and feature: 1. Four rates, 12 time periods and 1 minute interval.2. It maypreserve 12 months electricity consumption. 2.It can measure total electrical energy and electrical energy of each rate. The reverse energy is measured and addedto the corresponding forward energy. 3. Reverse pulse test and indication fuctions. Main technical parameter: Rated current: 5(20), 5(30), 10(40), 15(60), 20(80) Rated voltage: 220v/240v Rated frequency: 50/60Hz Accuracy class: Class 1 or 2 Clock error: ≤0.5sec/per day(reference temperature) ≤1.0ssec/per day(the backup lithium battery working time) Battery: import environmental protection lithium battery; voltage is 3.0v/3.6v; capacitance≥1000mAh DDSF3333 electronic single phase multi-rate watt-hour meter