DDSF304 Single Phase Electronic Multi-rate Watt-hour Meter

Main Parameter:
Accuracy class:1.0
Basic Current:2.5(10)A，5（20）A，5（30）A，10（40）A，15（60）A，20（80）A
Scope of operation temperature:-20℃-+70℃
Scope of temperature for store and transport:-30℃-+70℃

Main Performance:
Precision is hardly chardly changed by electrified wire netting frequency and voltage fluctuation,enjoying strong flexibility to ambient temperature,good tightness and resistance to moisture,dust silicon and salt spray.

After power failure.lithium battery inside the meter acts as reserve power source and ensuress date stability.clock and controls program running in normal conditions.Ifconnected with external battery,meter reading can be realized.After power on ,it can be put into operation automatically while keeping failure records.

Meter running information is transmitted through infrared and RS485interface.Data inside the meter can be read out through load control or other data collecting device,thus making long-range electric quantity charging system.