Application
DDSY-121YF series single-phase electronic prepayment energy meter is developed on the base of excellent single-phase
electronic energy meter. It is a new type of IC card pre-paid meter,which has the functions like power measurement, load control and customer information management.This meter adopted high performance American special chip. It is an ideal product for reforming electric system, commercialize the electrical energy, slove the electric charge collection problem and adjusting load status in the electric network.The meter complies with the technical requirements of standard IEC62052-11 and IEC62053-21,GB/T18460.3-2001,and GB/T18460.3-2001《Prepayment Energy Meter》.This meter can installed in indoor or outdoor within the meter box, operating in the ambient temperature -25℃~+60℃，relative humidity not exceeding 85%.Functions and features
●International standard IC card encryption pre-charge hardware,the users has to purchase the electricity first before use. ●High reliability,intelligent anti-theft protection,tamper-proof.
●Load control, over-load switching automatically, cut-off the power when overload continuously 10-15 seconds.
●LCD 6+2 digits display
●One meter has one card,the card has re-charged function.
●The meter can set alarm kwh quantity,and indicated by alarm LED or automatically cut-off when the rest power reached the alarm quantity.
●Operation indicated by pulse LED
●Save the data automatically when power off.
●Anti-theft fuction,can list the suspected
user by analysis the record.
●Expansible with RS485 or infrared communication for option.
●Remote control power on and off function. (for the meter with communication interface)
