DDSI879 Type Carrier Single Phase Electronic Energy MeterDetailed product description：

1.1 Overview

The DDSI879 carrier single-phase electronic energy meter is an energy meter designed and manufactured based on the actual electricity consumption of residents, using advanced specialized chips for energy measurement and carrier communication, digital sampling processing technology, and SMT technology. All components in the electricity meter are made of electronic components with long lifespan and high reliability, thus possessing the characteristics of long lifespan and high reliability.
This meter can achieve functions such as metering, carrier or infrared programming and meter reading, LCD display, etc. This meter has independent programming passwords and valve control passwords, which can protect the internal data of the meter and have the function of pulse output for electrical energy testing.
This meter has significant advantages such as high measurement accuracy, good stability, strong overload capacity, and high reliability. Can provide advanced and reliable measurement tools for the power sector. Its performance indicators comply with the technical requirements for single-phase electronic energy meters in GB/T17215-321-2008 "Level 1 and Level 2 Static AC Active Energy Meters" and GB/T17442-1998 "Acceptance Inspection of Level 1 and Level 2 Directly Connected Static AC Active Energy Meters", as well as the "2009 Heilongjiang Electric Power Co., Ltd. Electric Energy Meter Terminal Collection Project Equipment Procurement/Electric Energy Meter Terminal Collection Equipment Bidding Document".

1.2 Specifications, Models, and Technical Indicators
Specification, model and pulse constant of DDSI879 carrier single-phase electronic energy meter

model	Category	Reference voltage Un	Rated current In	Pulse constant imp/kWh
DDSI879	single-phase	220V	5(30)A	one thousand and six hundred
			5(40)A	one thousand and six hundred
			5(50)A	one thousand and six hundred
			10(40)A	one thousand and six hundred
			10(50)A	one thousand and six hundred
			10(60)A	one thousand and six hundred
			15(60)A	one thousand and six hundred
			20(80)A	eight hundred

Accuracy Level 1 Level 2
Rated frequency 50Hz
Dimensions 160mm ～ 125mm ～ 62mm
Weight approximately 0.6kg
Starting current active ≤ 0.5% Ib (level 2), active ≤ 0.4% Ib (level 1)
The submersible has anti submersible logic design.

Electrical parameters

working voltage	0.7 Un≤U≤1.2 Un
Voltage line power consumption	≤ 1.5W and 6VA
Backup battery voltage	3.6VDC