【General Introduction】
Adopting special large-scale integrated circuit and manufactured with advanced SMT process , DDYS*2Dx Single Phase Prepayment Electronic Meter is featured whit high degree of measuring accuracy, reliable and stable performance, long service life and low power dissipation. 

【Functions and Characteristics】
* LCD display ,LED indicators and mechanical register . Register displays the total amount of consumed power, LCD displays status of the meter and total and residual energy are displayed alternatively by LED indicators.
* IC card prepayment, purchasing before using.
* Meter reading card to monitor and control **5 meters simultaneously.
* Negative energy consumption record and deduction.
* Residential energy alarm to remind users purchasing electricity in time.
* Self verifying. 
* Special unit against tamper and fraud. 
* RS**5 communication port (optional).
* In sync with the electricity vending network software, the meter is convenient to both operator and customer.

 

【Technical Specifications】

Contents		Technical Specifications
Standard		GB/T*********2、GB/T****0.*****1
Measurement	Active	Positive active energy consumption measurement
		Negative active energy consumption measurement(will be counted into positive active energy consumption)
Specification	Rated voltage（V）	**0
	Rated current（A）	2(*0) 5(*5) 5(*0) *0(*0)
	Constant（imp/kWh）	***0　***0　***0
	Accuracy class	1.0
	Rated frequency	*0Hz
Output	Output Test	Active Pulse width：*0ms±*0%
Electrical Parameters	Normal working voltage	0.8Un ～ 1.*5Un
	Limit working voltage	0.7Un ～ 1.2Un
	Power consumption	Voltage Circuit LCD <1.0W 5.0VA LED< 1.5W 5.0VA Current Circuit <1.0VA
	Display	Total ****9.9 kWh Residential 0～****9.9 kWh
	Storage after outage	＞*0years
	Service life of CPU Card	＞***0 operations
	Accuracy of clock	<0.5s/day
Communication Protocol	Rs**5