The rail type three-phase four wire multifunctional electric meter is designed with an advanced single-chip processing system, which makes the electric energy meter have the advantages of high safety, reliability, and accuracy. Its internal structure combines software and hardware for structural design, with advanced technology and high measurement accuracy. It can be used in conjunction with the single-chip processing system to achieve active and reactive energy time-sharing measurement. This electric meter can measure multiple electrical parameters such as real-time three-phase current, voltage, active and reactive power, and power factors. Most importantly, it has unique communication functions and outstanding anti-interference and anti attack performance. Its strong adaptability to the environment makes the working temperature range wider, ensuring long-term stable and reliable operation and extending the use time.

The rail type three-phase four wire multifunctional electric meter adopts modular design, with a small overall volume and light weight, which facilitates the handling and transportation work. The simple structural design saves a lot of time and money during installation and disassembly, and makes it easy to achieve terminal distribution energy metering. Electric meters can be directly installed together with air switches, circuit breakers, and contactors, serving as signal acquisition units for factories, schools, hospitals, shopping malls, and other areas with power phase management requirements. The cumulative running time statistics of the electric energy meter and the data of the running power during the cumulative time can be reset to zero. When a power outage occurs, the battery can be used for power supply.

2015.8.12

Technical parameter project	Project Content
accuracy class	Active Level 1Reactive power level 2 or active power level 0.5s Reactive power level 2
reference voltage	AC3x220/380V (DTS238-7 ZN type three-phase four wire) AC3x380V 、 3x100V (DSS238-7 ZN type three-phase three wire)
Current specifications	1.5 (6) A, 2.5 (10) A、5(20)A、10(40)A、5(40)A、15(60)A,20(80)A,30(100)A,10(100)A
Overall Power Consumption	≤1.5W/8VA
reference frequency	50Hz
Working voltage range	80%Un～115%Un
operation temperature	-20℃～+55℃
working temperature limit	-25℃～+70℃
Product standards	GB/T17215.321-2008, IEC62053-21,DIN43864,DIN43880，DL/T645-2007
RS485 serial port	DL/T645-2007 is even parity, MODBUS-RTU is parity free
Dimensions (mm)	88mm×125mm×73mm

DT（S）S238-7 ZNThree phase multifunctional rail mounted electric energy meter（7PType)size

Wiring diagram