DDSIF879 Type Carrier Single Phase Electronic Energy MeterDetailed product description：

1.1 Overview
The DDSIF879 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", GB/T17442-1998 "Acceptance and Inspection of Level 1 and Level 2 Directly Connected Static AC Active Energy Meters", and GB/T15284-2002 "Special Requirements for Multi Rate Energy Meters". The communication specifications comply with DL/T645-1997 "Communication Protocol for Multi functional Energy Meters" and the "2009 Heilongjiang Electric Power Co., Ltd. Energy Meter Terminal Acquisition Project Equipment Procurement/Energy Meter Terminal Acquisition Equipment Bidding Document".

1.2 Specifications, Models, and Technical Indicators
Specification, model and pulse constant of DDSIF879 carrier single-phase electronic energy meter

model	Category	Reference voltage Un	Rated current In	Pulse constant imp/kWh
DDSIF879	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

Clock parameters

Clock accuracy	0.5S/d（23℃）
battery capacity	≥1.2Ah

climatic conditions

Normal operating temperature range	-30℃～+55℃
Extreme operating temperature range	-45℃~+70℃
Storage and transportation temperature range	-45℃～+80℃
Storage and working humidity range	≤85%

technical parameters

measurement range	0～999999.99 kWh
Display	liquid crystal
Baud rate	Infrared: 1200bps

safety performance
AC insulation voltage test: The test voltage is 4kV, which meets the requirements of GB/T17215. Impulse voltage test: The impulse voltage is 6kV, which has passed the EMC test and meets the requirements of GB/T17215. Under the condition of 1.9Un, the electricity meter remains undamaged for 4 hours.