Single Phase Prepayment Watt-hour Meter

タイトルまたは説明

DDY***-F1T Single Phase Prepayment Watt-hour Meter General introduction： The DDY***-F1T meter can perform a two-way transmission of the electric quantity purchased and consumed between the energy meter and the vending system using IC card. It integrates a single-phase prepayment watt-hour meter and a large current earth- leakage circuit breaker to insure that the usage of electricity is safe and reliable. The meter also integrates many kinds of anti-tampering functions. Main technical parameters： Accuracy class 2.0 Voltage **0V Frequency *0Hz Current 5（*0A） Power consumption： ≤3W Operating temperature －*0℃～*5℃ Limit temperature of operation *0℃ Storage temperature －*0℃～*0℃ Relative humidity： ≤*5% Main functions： *Metering: meter accumulated energy, available energy, reserve energy and dysfunction energy; *Reserve （need to be set in advance） When available energy reaches zero and user can not purchase energy in time, the meter has reserved a certain amount of electricity for use in a case of emergency. *Load control function: Set a limit to load current for every meter, when a meter inspects the power consumption and detects that load exceeds the **0%***0% authorised maximum, the meter will automatically cut power after one minute. *Anti-tampering: *Inversion of direction of rotation：when the sensor detects that the metering disk rotates in an inverse direction for a certain number of revolutions, the meter cuts energy automatically. *No consumption for a certain specified period : When the sensor detects an absence of disk rotation for a certain period of time exceeding a predetermined value, the meter cuts the energy. This predetermined value is registered in the IC card when the IC card is inserted in the meter. This value is set to zero if the energy distribution authority decides not to use this function. *Alarm: When th