overview
Suitable for residential use of electric fields
main features
DDZ1778The model adopts high-precision MCU and high-precision circuit design, which has the characteristics of stable performance, rich functions, and strong anti-interference ability. It adopts a fully sealed structure and shell, which can meet the application of harsh high and low temperature alternation and humid environment, and has a longer service life;
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 It has the function of time division and multiple rate electricity metering, and can modify the time period rate parameters through parameter setting software;
Ø Equipped with backlit LCD display, supporting rich status indicators and Chinese auxiliary information prompts;
Ø Equipped with one RS-485 communication interface, supporting DL/T645-2007 and Modbus protocol (optional);
Ø After a power outage, the display can be awakened by pressing the button for meter reading;
Ø 485The 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 |
70%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 levels: Active 0.5, 1, 2; Resolution: 0.01KWh |
Working power supply |
No need for external power supply (direct power supply) |
operation temperature |
-25℃~+60 ℃, maximum operating temperature:- 40℃~+70℃ |
Frequency range |
(50±2.5)Hz |
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: 160mm x 112mm x 58mm |
Product wiring diagram