Main function and features:
1. Can measure measurement data such as reverse active and reactive, forward active and reactive electric quantity, max. Demand and so on.
2. Can measure the voltage, current, active and reactive power of ABC phase accurately.
3. It has four rate, can set 12 time period per day, and 12 time zone per year. Four set of time period for choice.
4. Automatic read and store the measurement data of last two month on setting meter reading date. The max demand of that month automatic return to zero while storing and forwarding the data, it can also return to zero manually.
5. Can set 1-2 days as rest day every week.
6. Record and display loss-of-voltage information, power off information and data setting information, the use time of spare battery and parameter status.
7. Infrared remote control and palm computer for program and meter record, it can also communicate with computer.

Product Name	Type	Rated voltage (V)		Rated current (A)	Accuracy Class	Structure Desgin
3phase 4 wire multifunction electric meter	DTSD633	3*57.5/110V 3*220/380V		1.5(6)A	Active1.0 Reactive2.0	Electronic type
				3(6)A	Active0.5 Reactive2.0
3phase 3 wire multifunction electric meter	DSSD633	3*100V 3*380V		1.5(6)A	Active0.5 Reactive2.0	Electronic type
				3(6)A	Active0.5 Reactive2.0
Item			Technical Data
Impulse constant			3phase 4 wire: active5000imp/kwh,reactive5000 imp/kwh 3phase 3 wire: active2000imp/kwh,reactive2000 imp/kwh
Rated frequency			50Hz
Permissible Voltage Variation			3phase 4 wire:-30% - +20% 3phase 3 wire:-10% - +20%
Power Consumption			less than 2W,4VA
Working temperature			-20 - +60 centidegree
Storage and transport temperature			-45 - +75 centidegree
Relative humidity			≤75%
Data retention time after power failure			≥10 years
Pulse output data			Passive photoelectric isolation output Pulse width:(80±10)ms,current≤15Ma Voltage:DC(5 - 24)V(external provision)
Product size			276*170*77mm