Smart Card Prepayment Energy Meter
Single-phase Prepayment Energy Meter
Single Phase Smart Card Prepaid Energy Meter

DDSY283 single phase multi-tariff PLC communication split meter has the features such as high precision, low power consumption and long service life because of applying advanced single-chip processing system and microelectronic technology. The meter adopts top brand components and exquisite producing techniques which assure the stability during the service. The multi-tariff meter has extra functions like anti-tamper, monthly billing, infrared and RS485 communication etc., it’s widely used in the international markets.

The meters conform to IEC62052-11, IEC62053-21 etc. international standards for class 1 and 2 active energy meters. Multi-tariff and prepayment function comply with GB/T15284-2002 and GB/T18460-2001. 


1. General 

  1. Accuracy: Active energy Class 1 and 2  

  2. Reference voltage: 220V/230V/240V

  3. Rated current: 1.5(6)A, 2.5(10), 5(20)A, 10(40)A, 15(60)A, 20(80)A, 30(100)A

  4. Reference frequency: 50Hz

  5. Starting current: For Class 1 meter: Less than 0.004In; For Class 2 meter: Less than 0.005In 

  6. Creeping: With anti-potential logical design         

  7. Dimension: 170mm*112mm*73mm

  8. Weight: Approx. 1.0 kg 

2. Electronic Parameters

Normal working voltage range


Limit working voltage range


Power consumption in voltage circuit

Less than 2W and 5VA

Power consumption in current circuit

Less than 1VA

Battery voltage


Battery capacity


Data store without power

More than 10 years

Daily clock error

Less than 0.5S (23℃)



Daily tariff timetable




Normal working temperature


Limit working temperature


Store and transportation temperature


Working and store humidity


Measurement range

0~999999.99 kWh


LCD with backlight

Communication rate

RS485:1200bps~9600 bps、Infrared:1200bps

Communication protocol

According to standard《DL/T645-1997》


  1. Bi-directional active energy measurement
  2. Pulse output indicates by LED
  3. Prepayment before energy consumption
  4. Encrypted and secured memory card enables bi-directional data exchange between vending system and meters through memory card.
  5. Non-switch off period setting, such as public holiday and weekend, allows credit consumption in emergency situation.
  6. Power limitation
  7. Monthly Billing data for settlement
  8. Maximum 2 seasons, 4 step price, 4 tariff and 12 daily tariff periods
  9. Infrared communication port supports Hand Hold Unit Communication.
  10. Buttons for LCD manual display
  11. Months total and 4 tariff active energy record
  12. Output for alarm (optional)
  13. Terminal Cover open detection
  14. Backlight LCD display (one minute light and extinguish cyclically)
  15. Audible, LED alarm and automatically switch off
  • Overload alarm and switch off setting.
  • Low balance alarm and switch off setting
  • Power use up switch off setting