精度：stair
电流：5（60）A
电压：220V
主要功能：metering function, parameter monitoring, data storage, display function, load curve, communication function, anti-theft function, prepayment function
邮箱：2049334114@qq.com
电话：13532292694(微信同号)
QQ：2049334114
地址：Biaoji Building, Xiangzhou District, Zhuhai city, Guangdong Province
咨询在线客服 Overview of single-phase electronic prepaid energy meter：
DDSY668 single-phase electronic prepaid energy meter, referred to as single-phase smart card meter, is used to measure AC single-phase active energy with rated frequency of 50Hz and realize the management function of paying first and using electricity later. Single-phase electronic prepaid energy meter adopts CPU card (i.e. smart card) and advanced microelectronics technology for data collection, processing and preservation. Its performance index conforms to the national statute of electric card meter GB/T18460.3, IEC1036 and JB/T8382-1996 standard, with powerful function of non-decipherable and small volume, light weight and high reliability.
Working principle of single-phase electronic prepaid energy meter:
The single-phase electronic prepaid energy meter consists of four main functional blocks: one is the energy metering part; the second is the microprocessor control part; the third is the CPU card part; the fourth is the 485 communication part. The power metering part adopts a special large-scale integrated circuit chip, which can generate a pulse sequence indicating how much electricity is used and send it to the microprocessor for power metering. Measurements are stored in the CPU card；The microprocessor transfers information with the electric energy card (IC card) through the electric card interface to realize various control functions；The 485 communication part is under the control of microprocessor to realize setting the meter function parameters and reading and writing the data in the meter.
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地址：Biaoji Building, Xiangzhou District, Zhuhai city, Guangdong Province
手机：13532292694（微信同号）
邮箱：2049334114@qq.com
QQ：2049334114