Products description

A. Summarize      

DDSF949 Single-phase multi-tariff electronic meter uses large-scaled integrate circuit, SMT technics, world-famous branded long-life components, 5+2 digit LCD and hardware timer. It can measure the 50Hz~60Hz single-phase AC active time-sharing consumption accurately. It meets the standard of GB/T17215-2002 (idt IEC61036 international standard),GB/T15284-2002, DL/T614-1997 and some other relative national standard for multi-fee ratio electronic meter. It can be mainly used in the area of time-sharing measurement and can automatically read long-distance meter. Good reliability, anti-tampering, wide load, low consumption, high accuracy, good anti-disturbance performance and working for long time without calibration.

B. Main function and characteristic

1. Can measure the four different fee ratio consumption of tine, apex, flat and vale for 12 different period accurately.

2. Can store the tine, apex, flat and vale consumption of current, last months and the month before last.

3. Has a temperature shading circuit for the timer to ensure the high accuracy with the error less than 0.5s/d.

4. The data can be setup and read by RS485 and infrared interface, RS485 port is electric separated from the inside circuit of meter.

5. Uses import lithium battery with life of 10 years.

6. Can store data for 15 years when power off.

7. Has test function for maximum demand.

8. Can show all data recurrently and automatically or recurrently by pushing button.

9. Can setup the date of automatically reading meter.

10. Can judge the consumption direction and accumulate the reverse consumption to total consumption.

11. Adopts both protection of encrypted code and programming switch to setup the data, automatically record the programming time and times.

C. Technical parameter

Class	1 or 2
Voltage circuit consumption	≤1.5W & 6VA
Reference voltage	110V, 120V, 220V, 230V, 240V
Basic current (rated max, current)	1.5(6)A, 2.5(10)A, 5(20)A, 5(30)A,  10(40)A, 10(60)A, 15(60)A
Limited working temperature	-30℃～+65℃
Relative humidity	≤85%
Standard	GB/T17215-2002《Class 1 and Class 2 static AC active meter》idt IEC61036    GB/T15248-2002 《Special requiirement for Multi-fee ratio electronic meter》   DL/T614-1997《Multi-function electronic meter》   DL/645-1997 《The protocol for multi-function electronic meter》
Other technical parameter	Impulse width 80ms±20ms, second impulse frequency 1Hz, timer accuracy≤0.5s/d