DSSD122,DTSD222 Electronic three-phase multifunctional energy meterDetailed product description：

The DSSD122 and DTSD222 fully electronic three-phase multifunctional energy meters are designed and manufactured using advanced ultra-low power solid-state integration technology and SMT process. They are used for measuring AC active and reactive energy in a three-phase power grid with a rated frequency of 50HZ in a time-sharing manner. This meter adopts high-performance 32-bit embedded RISC CPU, energy meter specific integrated circuit, non-volatile memory for permanent information storage, LCD digital display and other technologies, realizing functions such as active and reactive energy, maximum demand time-sharing measurement, RS485 serial data and far-infrared communication, preset, meter reading, etc. Using dedicated POS machines and PC serial data communication ports as media to achieve information transmission between users and power supply department computers, in accordance with the technical requirements of DL/T645, DL/T614, GB/T17215, GB/T17882, and GB/T17883.  

1. Time division metering of forward and reverse active power, four quadrant reactive power, can be displayed in any combination.  
2. Time division measurement of positive and negative active power, maximum demand and occurrence time of reactive power in four quadrants
3. Two sets of time periods for primary and secondary, automatic error correction, and a maximum of 12 months of historical records can be recorded.  
4. Automatically record and display three-phase voltage, current, and power. Record interval time of 1-100 minutes can be set arbitrarily.  
5. The meter can display, record, and remotely transmit the maximum and minimum values of three-phase voltage and current, as well as the corresponding time, on a daily basis. It can also automatically accumulate the time of overvoltage according to the predetermined upper and lower limits of voltage, providing all data for assessing the voltage qualification rate.  
6. It can achieve full voltage and current loss recording, alarm, and display functions according to the standards issued by the department, effectively preventing power loss caused by wiring errors or user theft.  
7. The electricity meter has a standard RS485 interface, which can remotely transmit data such as electrical energy, maximum demand, three-phase power, voltage, current, etc. The communication protocol and data structure comply with the DL/T645-1997 standard.  
8. You can choose from three options to set parameters: handheld computer infrared mode, RS485 interface, and manual mode.  
9. High precision, high overload, high reliability, low power consumption, small size, light weight, and good structural performance. 10. Large screen Chinese characters, super distorted, wide temperature LCD display, clear and comprehensive prompts.

DSSD122, DTSD222 electronic three-phase multifunctional electric energy meter main technical parameters:

model	DSSD122 (three-phase three wire) DTSD222 (three-phase four wire)
standard	GB/T17215-2002　 GB/T17882-1999 GB/T17883-1999　 DL/T614-1997
Precision level	Active power 0.5S/1.0 level, reactive power 2.0 level
power consumption	＜1W,4VA
rated voltage	3×100 3×380V 3×57.7/100V 3×220/380V
rated current	0.3（1.2）1.5（6）3（6）5（20）10（40）15（60）20（80）
Working voltage range	0.8Un～1.2Un, Extreme working voltage range: 0.7Un~1.3Un
Clock error	≤ 0.5s/d, Warm compensation
Working environment temperature	Working temperature (℃): -25~+60, extreme working temperature (℃): -40~+70
Working environment humidity	≤85%

DSSD122, DTSD222 electronic three-phase multifunctional energy meter