DDSIY879 Type Carrier Single Phase Electronic Prepaid Energy MeterDetailed product description：

1、 Product Overview
The DDSIY879 carrier single-phase electronic prepaid energy meter is based on an energy metering chip and microcontroller, absorbing and digesting the functional advantages of similar products at home and abroad. It uses an intelligent CPU card as the purchasing medium and has a bank financial card confidentiality level to ensure security; In addition, the product has a power line carrier communication interface, which can achieve carrier communication function. This electric energy meter has the characteristics of accurate measurement, low power consumption, strong overload capacity, long service life, good anti-interference performance, and high reliability.
The main indicators of this table are superior to GB/T18460.3-2001 Prepaid Electricity Meter and DL/T698-1999 Technical Conditions Standard for Low Voltage Power User Centralized Meter Reading System.

2、 Technical specifications of DDSIY879 carrier single-phase electronic prepaid energy meter

project	Main technical parameters and specifications
accuracy class	Level 1.0/Level 2.0
Reference frequency	50Hz
display range	000000.00――999999.99kWh
IC card encryption method	CPU card, ESAM module, 3DES encryption
prepaid	Adopting the residual power mode
carrier communication	PSK modulation, spread spectrum pseudocode 15 bits, center frequency 120K, bandwidth 15KHz
Infrared communication distance	≤10m
power consumption	Static less than 1.5W, carrier transmission less than 3W
MTBF	Better than 9 * 104 hours
power supply voltage	AC154-264V
Reference current	5 (20) A, 10 (40) A, 15 (60) A, 20 (80) A
pulse constant	3200imp/kWh 、1600imp/kWh、800imp/kWh、400imp/kWh
Trip control mode	External shunt release switch
Control relay capacity	5A/220V
Project	Main technical parameters and specifications
Power pulse output parameters	Pulse width of 80 ms ± 20%, 5-24V DC voltage provided externally
Overall dimensions	174mm×116 mm×68 mm
Operating Temperature	-20℃～50℃
relative humidity	45%～75%
Storage and transportation temperature	-25℃～75℃