overview
Suitable for applications such as power distribution automation systems, industrial control and automation systems, small charging stations, energy management systems, and residential power monitoring;
main features
DDSU1778-4PThe series of rail type electric energy meters adopt high-performance metering chips, manufactured using advanced microelectronics technology and SMT production process, and have the characteristics of high accuracy error, stable performance, rich functions, and strong anti-interference ability, which can meet the stable operation of long-term hanging on the grid;
major function
Ø It can measure voltage, current, and power, and can measure positive and negative active energy. It can be stored cumulatively for up to 12 months and has power direction recognition and indication functions;
Ø The optional time division rate electricity metering function allows for the modification of time period rate parameters through parameter setting software;
Ø Equipped with LCD display, supporting commonly used voltage, current, power, battery level, and prompts;
Ø Equipped with one RS-485 communication interface, supporting DL/T645-2007 and Modbus protocol (optional);
Ø Equipped with built-in relay control and supporting prepayment function in the background;
Ø The default baud rate is 2400bps, which can be modified to 1200-9600 through parameter setting software;
Ø Voltage signal power supply, no need for auxiliary power supply;
performance parameter
project |
TECHNICAL INDEX |
Main technical standards |
GB/T17215.321-2008 |
reference voltage |
AC 220VResolution: 0.1V |
Working voltage range |
80%Un~120%Un |
Common current specifications |
Direct access type 5 (60) A; Resolution: 0.001A (specifications can be customized according to requirements) |
active power |
Resolution: 0.0001KW |
active electrical energy |
Accuracy level: active level 1, 2; Resolution: 0.01KWh |
Working power supply |
No need for external power supply (direct power supply) |
Load switch |
Built in 1 relay, controlled on/off through 485 remote command |
operation temperature |
-25℃~+60 ℃, maximum operating temperature:- 40℃~+70℃ |
Clock Error |
Clock optional, 23 ℃, ≤ 0.5s/d;- 25℃~+60℃,≤ 1.0s/d |
Communication protocol |
DL/T645-2007Or Modbus RTU (optional) |
External dimensions |
Length x Width x Thickness: 100mm x 82mm x 64mm |
Product wiring diagram