DDSF105 single-phase electronic multi rate energy meterDetailed product description：

The DDSF105 single-phase electronic multi rate energy meter adopts advanced energy metering dedicated chips, mature multi rate technology, digital sampling processing technology, and SMT manufacturing technology, designed and manufactured according to the actual electricity consumption of users. Featuring RS485 communication, infrared communication, simple structure, high accuracy, low power consumption, and long lifespan, it can be used for measuring single-phase AC active energy with a rated frequency of 50Hz. Its performance indicators comply with the technical requirements for single-phase electronic active energy meters in GB/T 17215 "Level 1 and Level 2 Static AC Active Energy Meters", and meet the technical requirements for multi rate energy meters in GB/T 15284 "Special Requirements for Multi rate Energy Meters"; Its communication protocol complies with the requirements of DL/T645 "Multi functional Energy Meter Communication Protocol".

Main functions
Energy metering, event recording, alarm, power freezing, power outage display, light wake-up, infrared communication RS485、 Settlement, multiple rates, calendar clock
Main Features
This meter can achieve time-sharing measurement and can set 3 rates, 8 daily time periods, 2 time periods, and 12 digit meter numbers. It also has functions such as automatic data transfer for set days, handheld terminal or PC programming and meter reading, LCD display, power test pulse output, and clock second signal test output.

Technical parameters of DDSF105 single-phase electronic multi rate energy meter
Accuracy levels 1.0 and 2.0
Reference voltage 220V
Reference frequency 50Hz
Main current specifications: 5 (20) A, 5 (30) A, 10 (40) A, 10 (40) A, 10 (60) A, 20 (80) A
Starting current 0.004Ib
Normal operating temperature -25 ℃~+55 ℃
Extreme working temperature -40 ℃~+60 ℃
Storage and transportation temperature range -35 ℃~+70 ℃
The relative humidity can reach 95% for 30 days of the year and 85% for the rest of the time
Working voltage range 0.8Un~1.2Un (normal), 0.7Un~1.9Un (limit)
Power consumption voltage line active power ≤ 1.0W, apparent power ≤ 5.0VA
Weight 0.7kg