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Product Name: Single-Phase Static Multi-Tariff Prepayment MeterModel Number: DDSYF200Place of Origin: ChinaGeneral introduction:DDSYF200 serial single-phase Static Multi-tariff prepayment watt-hour meter (which is abbreviated to DDSYF200 hereafter) is a new-model electric energy measurement meter, independently designed by Seasun Electronic Industrial CO., Ltd. The meter adopts the latest special electric energy measuring chips developed by ADI Company and uses ¦І-Ўч sampling conversion technology to realize high accurate, high overloading single-phase active multi-rate electric energy measurement. The meter can measure fourЁCrate electric energy at best and can finish meter reading , fees collection and energy assumption control through IC card. The product is an indispensable measuring instrument for electric energy department to reform the fees collection mode and to achieve the management of prepayment time-sharing power use.Main technical index:1) Accuracy class: 1.02) Current specifications: 10(40)A3) Rated voltage: 220V4) Limited voltage: 70% ~ 120% Un5) Rated frequency: 50Hz6) Tolerant surge voltage: 6kV7) Voltage circuit consumption: ≤2W, 10VA8) Operation temperature: -25 ~ +55oC9) Relative humidity in operating mode:oC10) Pulse constant: 1,600imp/k Wh11) Battery life: 10 years12) Clock accuracy: ±0.5s/d, 0.1s/doC13) Communication speed: 1,200bps14) Communication distance:a) IR: 3mb) RS485: 1,200m15) Pulse output width: 80±20msMain functions:1) Timing function: the real-time clock chip is built in the meter, so the meter candisplay calendar and clock. The clock within the meter still can normally work whenpower is off2) Multi-rate electric energy measurement function: 24 hours in a day can be dividedinto 8 periods of time at most, and different rates is charged for different periods.Four rates can be set at most, which are T1, T2, T3 and T4 respectively. Theconsumed electric energies under different rates are counted into thecorresponding electric energy registers, which are E1, E2, E3 and E4 respectively.When the actual rate quantity is less than four, the corresponding electric energyvalues under those rates can be shielded from displaying3) Power consumption control function: through adopting IC card, the powerconsumption data of the users and control information of electricity selling systemcan be mutually transmitted between the meter and the electricity selling systemunder power supply management departments to realize the functions of meterreading and electricity charge payment. When the available electric quantity in themeter is consumed, the meter will automatically turn off power; only when the userspay off electricity charge, and the new available electric quantity in IC card is inputinto the meter, can the meter resume to supply power
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