General introduction
DDSYF200 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(20)A, 10(40) A, 20(80)A
*Rated voltage (V) 220V
*Limiting voltage (V) 70%~120%Un
*Rated frequency (Hz) 50Hz
*Tolerant surge voltage 6kV
*Voltage circuit consumption ≤ 2W, 10VA
*Operation temperature(celsius) -25~+55 celsius
*Relative humidity <85%@23 celsius
*Pulse constant 1600imp/k Wh
*Battery life 10 years
*Clock accuracy ± 0.5s/d, 0.1s/d celsius
*Communication speed 1200 bps
*Communication distance IR: 3m; RS485: 1200m
*Pulse output width 80± 20ms
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: 24 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 departments to realize the functions of meter reading and electricity charge payment. When the available energy in the meter is consumed, the meter will automatically turn off power; Only when the users pay off electricity charge, and the new available energy in IC card is input into the meter, can the meter resume to supply power.
* Independent 485 communication interface and infrared communication interface.
The company's main product is "SEASUN" bland watt-hour meter, whose annual production is over 40 million pieces, including varieties series, such as such electromechanical watt-hour meter, electric watt-hour meter, single-phase watt-hour meter, three-phase watt-hour meter, prepayment watt-hour meter, multi-tariff watt-hour meter, multi-functional watt-hour meter to meet different needs from customers.
In terms of quality management, Seasun was granted ISO 9001 certification by British SGS Company in 1997, and successfully passed review in 2000. In 2003 Seasun passed the quality system certification of Loyld's Register Quality Assurance (LRQA), the 2000 edition again. Sessun has obtained exporting right. Seasun has signed formal contracts with many countries. The product export to Europe, Asia, Africa and so on.
