Summarization:
DDS949 single-phase LCD-display electronic meter uses large-scaled integrated circui

Summarization:
DDS949 single-phase LCD-display electronic meter uses large-scaled integrated circuit, SMT techniques, world-famous branded long-life components and 5+2 digits wide temperature LCD display, which protect the data from losing when powered off. It can measure 50Hz~60Hz single-phase AC active power consumption accurately. It meets the standard of GB/T17215-2002. It features good reliability, anti-tampering, wide load, low consumption, high accuracy, good anti-disturbance performance and working for a long time without calibration.

Main function and characteristics:
1) Can accumulate both direct and reverse consumption accurately
2) Has separate LED photo-emitter and electrical impulse outputs to show power consumption
3) Features good reliability, anti-tampering, wide load, low consumption, high accuracy, good anti-disturbance performance and working for a long time without calibration
4) LCD display shows data visually
5) Can offer RS485 and infrared communication according to customers' requirements

Technical parameter:
1) Accuracy class: class 1 or class 2
2) Voltage circuit consumption: ≤2W, 6VA
3) Reference voltage: 110V, 120V, 220V, 230V, 240V
4) Basic (max. rated) current: 1.5 (6) A, 2.5 (10) A, 5 (20) A, 5 (30) A, 10 (40) A, 10 (60) A, 15 (60A)
5) Limited working temperature: -30 ~ +65°C
6) Relative humidity: ≤85%
7) Other technical parameter: impulse width 80ms±20ms