Prepaid Electricity Meter

DDSY6789 single phase smart card electricity meter adopts micro-chip measuring energy. It conforms to IEC61036 and JB/T8382-96 s

DDSY6789 electronic meter used for frequency 50HZ or 60hz active energy measurement. Installing indoor or meter box of outdoor. The environment temperature is -20~50°C, relative humidity less than 85%. And there are no corrosive gases etc.

Main specification and parameter

Specification

Type	Class	Specification	Display	Connection mode
DDSY6789	1 or 2	220V 2.5(10)A	LED	Impulse
		220V 5(20)A	Or
		200V 10(40)A	LCD

Basic error

Load current	Power factor COSφ	Basic error(%)		Remark
		Class 1	Class 2	Ib means basic current; Imax means max current;
0.05Ib	1.0	±1.5	±2.5
0.11Ib-Imax	1.0	±1.0	±2.0
0.1Ib	0.5(L)0.8(C)	±1.5	±2.5
0.2Ib- Imax	0.5(L)0.8(C)	±1.0	±2.0

Start:

     Under the condition of refer voltage, frequency and power factor is 1 and class one meter is 0.004Ib, class 2 meter is 0.005Ib.

Running with no load: When voltage is 115% of refer voltage and no current, impulse outputs is less than 1pc.Power consumption:<2W,10VA

Main construction and work principle

Meter main construction

Meter out case use ABS material, hard and good sealing.

Work principle

The meter sampling the current and voltage through splitter and voltage divider, conversion by A/D,DSP multiplier, D/F transform, frequency division etc output impulse signal to CPU, after operation the data will display on the LCD and drive pulse indicator blink.

 

Prepaid Electricity Meter