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STS keypad Type Three Phase Prepayment Energy Meter
Model DDSY666-N STS three phase keypad prepayment energy meter is new type of single phase two wire prepayment meter. The meter has photoelectric communication port, according with the standard IEC62056-21. It can accurately measure total active energy consumption, remaining electricity quantity, voltage and so on. It is very easy to operate the meter. User will get a series of 20 bits code TOKEN after purchasing electricity from electricity selling department, then recharge successfully by correctly input 20-digit TOEKN code with the buttons on the meter. Besides, the meter can detect electricity theft, reverse connection, meter cover opening, terminal cover opening and etc, protecting meter from electricity theft.
The meter can measure forward active energy consumption, backward active energy consumption, voltage, current, instantaneous power and etc;.
The meter has 64K NV EEPROM, can record total energy consumption, remaining electricity quantity, events and recharge;
The LCD screen can show remaining electricity quantity, to remind user to purchase electricity;
Balance alarm can be set by user according to his own need;
With photoelectric communication port, user can read and set parameters of the meter through the PC software;
The meter can detect reverse connection of zero line and live line, take the absolute value and calculate the power consumption;
The meter can detect more than 400mT magnetic field, LCD shows status of electricity theft and record;
User can recharge successfully just by correctly input 20-digit TOEKN code with the buttons on the meter, not need any card.
| Model | Accuracy | Reference Voltage (V) | Current Specifications (A) | Starting Current | Pulse Constant (C) |
| DTSY666-N | Class 1 | 3X230/415V | 5(100) | 0.02 | 1000imp/kWh |
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