DDSY105 single-phase electronic prepaid energy meterDetailed product description：

The DDSY105 single-phase electronic prepaid energy meter uses dedicated integrated circuits for energy measurement, dedicated CPU circuits for data processing, display, and control of relay actions. Its main characteristics are reliable performance, high accuracy, high overload, low power consumption, small size, light weight, and easy use. Provide AC single-phase active energy with a rated frequency of 50Hz for metering. Suitable for prepaid and computer networking, etc; This product meets all technical requirements of GB/T 17215.321-2008 "Level 1 and Level 2 Static AC Active Energy Meters" and GB/T18460-2001 "IC Card Prepaid Electricity Sales System" standards.

Main functions
Electricity metering, prepayment, alarm, infrared communication, RS485 communication, calendar clock, power outage display, electricity freezing, power off

Main Features
One table and one card cannot be copied, with logical encryption. Effectively prevent technical electricity theft.
Equipped with prepayment function, it can realize payment before electricity usage
Capable of measuring active energy in both directions and counting it in the forward direction in reverse
Equipped with functions such as early warning and overdrawn battery capacity
Adopting LCD display with Chinese character prompts, clear and intuitive, with backlight display function
Pulse output port for electrical energy testing with optoelectronic isolation
Equipped with infrared and RS485 communication functions

Technical parameters of DDSY105 single-phase electronic prepaid 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, 15 (60) A, 20 (80) A
Starting current level 1 0.4% Ib, level 2 0.5% Ib
Working voltage range 0.7Un~1.2Un
Normal operating temperature -25 ℃~+55 ℃
Extreme working temperature -30 ℃~+70 ℃
Storage and working humidity ≤ 85%
Lithium battery ≥ 1200mAh
Display LCD display