Technique parameter:
1. Rated voltage: 220V
2. Startup current: <0.4%lb
3. Marked current: 5(30)A, 10(40)A, 5(40)A, 10(60)A
4. Power dissipation: <1w
5. Precision: 1.0
6. Normal working temperature: -10 c-45c
7. Limit working temperature: -40 c-70 c
8. Meter constant: 3200imp/KWH 1600imp/KWH
9. External dimension: 170 x110 x61mm 185x116x67mm

Performance feature:
1. It adopts logic encrypted IC card as user electricity purchasing card, one card just for one meter, fake card is completely avoided.
2. Display by both mechanical calculating device and numeral tube, with two alarm grade to remind purchasing electricity.
3. Computation the electricity normally, even it is short of phase. Two ways to control the overload cutoff.
4. Have a good self-checking fault function, in case of the incorrect measure due to defaults, it will automatically break the electricity.
5. Embedded large power latching bi-stable relay is used to cut off the power supply directly.
6. Meter copy with the card it records electricity surplus, total electricity consumption of last month and the month before last month, and other data to the system. The system compares such data, computes the electricity loss and balance.
7. It's able to carry out self checkup current power is displayed when the card is inserted