Description

DDSYF**0 Single Phase Static Multi-tariff Prepayment Watt-hour Meter General introduction DDSYF**0 serial adopts the latest special electric energy measuring chips developed by ADI Company and uses Σ-△ sampling conversion technology to realize high accurate, high overloading single-phase active multi-rate energy measurement. The meter can measure four tariffs energy at best and can finish meter reading, fees collection and energy assumption control through IC card. Main technical parameter: *Accuracy Class 1.0 *Current : 5(*0)A, *0(*0) A, *0(*0)A *Rated voltage (V) **0V *Limiting voltage (V) *0%~**0%Un *Rated frequency (Hz) *0Hz *Tolerant surge voltage 6kV *Voltage circuit consumption ≤ 2W, *0VA *Operation temperature(℃) **5~**5℃ *Relative humidity &*;*%@********************lse constant ***0imp/k Wh *Battery life *0 years *Clock accuracy ±0.5s/d, 0.1s/d℃ *Communication speed ***0 bps *Communication distance IR: 3m; RS**5: ***0m *Pulse output width *0±*0ms Main functions *Timing function The real-time clock chip is built in the meter, so the meter can display calendar and clock. The clock within the meter still can normally work when power is off. *Multi-rate electric energy measurement function: *4 hours in a day can be divided into 8 periods of time at most, and different rates is charged for different periods. Four tariffs can be set at most, which are T1, T2, T3 and T4 respectively. The Consumed energies under different tariffs are counted into the corresponding electric energy registers, which are E1, E2, E3 and E4 respectively. When the actual tariff quantity is less than four, the corresponding electric energy values under those tariffs can be shielded from displaying. * Power consumption control function: Through adopting IC card, the power consumption data of the users and control information of electricity vending system can be mutually transmitted between the meter and the vending system under power supply management departm