overview

Suitable for power plants, substations, charging stations, and various enterprises and institutions that require high-precision energy measurement, stable and reliable operation;

main features

DTZ1778The 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, measure positive and negative active energy, four quadrant reactive energy, and demand data, and has power direction recognition and indication functions;

Ø The cumulative storage of electricity data and demand data can last up to 12 months, supporting up to 3 settlements within a month;

Ø Support any combination of active and reactive power, and can separately measure phase separated positive and negative active energy as well as four quadrant reactive energy;

Ø It has the function of time division multiple rate electricity metering, which measures positive and negative active power and four quadrant reactive power in a time-sharing manner, as well as the corresponding maximum demand;

Ø Maximum support for 4 rates, switching between two rate periods; The time slot rate parameters can be modified through parameter setting software;

Ø It can record and store 6 types of load records, multiple frozen records, and comprehensive event records, and has anti electricity theft and lid opening detection function;

Ø It has rich self checking, error correction, alarm and security prevention functions;

Ø Equipped with backlit LCD display, supporting rich status indicators and Chinese auxiliary information prompts;

Ø Equipped with two independent RS-485 communication interfaces and one infrared interface, supporting DL/T645-2007 and Modbus protocols (optional);

Ø After a power outage, the display meter reading can be awakened through buttons and handheld devices;

Ø The infrared baud rate is 1200bps, and the default baud rate for 485 is 2400bps. The baud rate can be modified to 1200-9600 through parameter setting software;

Ø Voltage signal power supply, no need for auxiliary power supply;

performance parameter

Product wiring diagram