Application
DD958 series single phase watt-hour meter is a kind of directly input induction meter, which is used to measure active energy in the alternating current of 50 Hz. This series of product conforms to the national standard GB/T15283-1994.

Normal Service Condition
This kind of watt-hour meter works in normal working condition and temperature; Reference temperature is +23º C, limited temperature is 0~+40º C, temperature is 25%--80%RH. In the condition of no mould, insect, salt and dew, but allows slight dust.