Main function and features:
1. It has two rate, three rate and four rate to measure electrical energy and demand, and can store current data and last month data.
2. Ten rate period, the minimum interval of time is 15 minutes, and can set two seasons interval of time.
3. Liquid crystal display(LCD) or digital display.
4. Use remote control and palm computer to set data and read data.
5. Photoelectricity output interface(RS485).
6. Power supply of three pahse, with phase failure test and record fuction.

Product Name	Type	Rated voltage (V)		Rated current (A)	Accuracy Class	Structure Desgin
3 phase 4 wire multi-rate electric kwh meter	DTSF633	3*220/380V		1.5(6)A	1.0	Electronic type
				3(6)A	1.0
				5(20)A	1.0
				10(40) A	1.0
				15(60)A	1.0
				20(80)A	1.0
				30(100)A	1.0
3phase 4 wire active multi-rate energy meter	DTF862	3*220/380V		3(6)A	2.0	Mechatronic
				1.5(6)A	2.0
				5(20)A	2.0
				10(40)A	2.0
				15(60)A	2.0
				20(80)A	2.0
				30(100)A	2.0
	DTF864	3*220/380V		3(6)A	1.0	Mechatronic
		3*57.7/110V		1.5(6)A	1.0
3phase 3 wire active multi-rate energy meter	DSF862	3*100V 3*380V		3(6)A	2.0	Mechatronic
				1.5(6)A	2.0
				5(20)A	2.0
				10(40)A	2.0
	DSF864	3*100V 3*380V		3(6)A	1.0
				1.5(6)A	1.0
3phase 4 wire reactive multi-rate energy meter	DXF862	3*220/380V		1.5(6)A	3.0	Mechatronic
				3(6)A	3.0
	DXF864	3*220/380V		1.5(6)A	2.0
				3(6)A	2.0
3phase 3 wire reactive multi-rate energy meter	DXF865	3*100V 3*380V		1.5(6)A	3.0	Mechatronic
				3(6)A	3.0
	DXF863	3*100V 3*380V		1.5(6)A	2.0
				3(6)A	2.0
Item			Technical Data
Clock error			≤0.3S/d
Error of changing time sections			0.1S
Rated frequency			50Hz
Working temperature			Active 1.0 class,reactive2.0 class: 0 - +40 centidegree Active 2.0 class,reactive3.0 class: -20 - +55 centidegree
Relative humidity			≤85%
Data retention time after power failure			≥10 years
Pulse output width			80 - 120ms
Power consumption of electronic control unit			0.6VA