Kwh Meter

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1. Brief Introduction DTSY-T01 is a single phase din-rail meter two wire split type prepayment keypad meter approved by STS. It can access to any STS standard system.Built-in 100A relay which can trip when over load or balance run out.The Din Rail Meter consist of Measurement and Control Unit (MCU) and Customer Interface Unit (CIU). MCU achieve data exchange with CIU through non polarity twisted pair cable and meanwhile supply power to CIU, CIU need not external power.Furthermore , customer can check the information in home and realize remote or SMS recharge. 2.Technical Parameter of 1P Din Rail Meter Ref. voltage 230V±20% Ref. current 5(80)A Impulse constant 1000imp/kWh LCD display LCD6+2 Operation temp. -20~+70? Storage temp. / Relative humidity 95% Average relative humidity 75% Accuracy class Cl.1 Starting current 0.004Ib Ref. frequency 50Hz Power consumption ? 1W,?8VA Standard compliant IEC62052-11,IEC62053-21,IEC62056-21,IEC62055-41 3. Function Description   3.1 Metering Function This single phase split prepayment meter is based on virtual medium. The data encryption process complies with international standard IEC62055 and certified by STS association. 3.2 Communication Function IR communication interface in MCU can set and read local parameter. MCU support IR and non polar twisted pair cable communication, IR complies to IEC62056-21(A) mode, protocol of non polar twisted pair cable is DLT645-2007. IR :Baud rate:2400, 7 data bits,1 even,1 stop bit. RS485 : Baud rate :9600,8 data bits,no even,1 stop bit. 3.3 Prepayment Function 3.3.1 Recharge After purchasing the credit, user will get a recharge token, enter 20 digits token through keypad, the token will scroll display from right to left. The interval typing time should within 20S. Type " clear button " to modify entering error. After confirmed, press “Enter”. If don’t type completely, the ty

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