Ddsy72-static Single-phase Pre-payment Watt-hour Meter

Main Features
Using IC card; Having compositive functions of energy measurement, load monitoring and information management
Reasonable structure, advanced craftwork; strong anti-jamming ability; high reliability; design against
voltage-interruption and over-voltage, small volume, multi-function
Meeting the electromagnetic compatibility requirement
Ideal products for energy monitoring and load adjustment of electricity network
All specification meeting standard GB/T17215-2002 (IEC61036-2000)on alternating current static
watt-hour meters for active energy (classes 1 and 2), GB/T18460.3- 2001 on pre-payment vending
system using integrated circuit (s) cards with contacts--part 3: Pre-payment electricity meters.
Structure
With sealed case of flame-retardant、water-proof, rust-proof and anti-aging
One red LED indicating power pulse and flashing once per pulse; Another LED indicating on-off state
of meter
Socket for IC card is designed in a small door with self-protective function; Open the door to plug the
card
One channel of optical pulse output for calibration with width of about 80ms
Displaying energy by LED. When remaining energy reaches the alarm quantity, LED flashes.
Energy quantity is transmitted through encrypted IC card
One card for one meter
Adopting FeRAM (Ferroelectric random-access memories) to ensure reliable storage
Large capacity magnetic-holding electrical relay, lower power consumption, high reliability
Technical Parameters
Rated Voltage (V): 220
Operation Voltage (v): 70%Un~120%Un
Rated Current (A): 5(20), 5(30), 10(40)
Rated Frequency (Hz): 50
Accuracy: class1, class2
Power Consumption: voltage circuit:≤2W/10VA;　current circuit: ≤1VA
Ambient Temperature(℃): -25~+55，limits of temperature(℃)：-45~+70
Relative Humidity: ≤75% (annual average)
Range of Display:0~9999kWh
Data can be stored for more than 10 years when power off
Size（mm）：187.6×127.5×63
Life(year):＞10
Function
Prepay the energy to be used with IC card and the remaining energy will reduce continuously
When there is not enough remaining energy, meter will alarm. When the remaining energy reaches
zero or one specified quantity, power supply is cut off to remind the user to buy energy.
Automatically cut off power supply when overloaded
Able to write back data
Able to display remaining energy and other information Scope of Use
220V 5(20) A----10 (40) A is for direct connected meters suitable for residential energy measurement
at urban or rural areas where energy prepayment has been or is to be realized

_________________
Contact Name: Lisa Huang
Company Name: Jiangsu Linyang Electronics Co., Ltd.
Email: Simmtea@gmail.com
Tel: 86-513-83300039
Fax: 86-0513-83321569
Street Address: No.666, Linyang Road, Qidong City, Jiangsu Province, China
Website: http://www.linyang.com