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  • Professional Manufacturer Of Electric meter,Electronic meter,kwh meter,Prepaid meter.

LCD kwh meter

    Name:DDSY450 single phase prepaid kwh meter

  • LCD kwh meter

  • The model DDSY450 single phase prepaid electronic meter, briefly named as single-phase intelligent card watt-hour meter, is used for measuring single-phase AC active energy with rated frequency of 50Hz to realize using electric power after prepayment. The product adopts CPU card (named as smart card) and advanced micro-electronic technique to collect, process and memorize data. Its technical performances are complying with the requirements of national standards of IEC62053-21,IEC62052-11. It has strong function of preventing the meter from decoding, compatibility as well as features of small size, light weight and high reliability.
  • Work principle
  • There are two basic function modules in the meter separately named the energy metering module and the MPU controller module. The energy-metering module adopts well-selected special integrated circuits as will send the pules frequency to the MPU to accumulate the consumption of the electric.
  • The MPU controller module transfers message between the prepaid card and the port of card to realize the prepaid metering function and other appointed function.
  • The working principle of DDSY450 that has basic functions is as follows:
  • Basic functions
  • 1. Bi-directional active energy measurement
  • 2. LED display or LCD display
  • 3. Pulse output with optical -coupling isolated
  • 4. Over-load alarm
  • 5. Precaution alarm
  • 6. Power down alarm
  • 7. Purchase reminding
  • Technical Data
  • Applicable Standard    IEC61036-2000
    Service Lifetime  10years
    Accuracy Class  Class1,Class2
    Working temperature     -30℃~+65℃
    Working voltage range  0.7~12Un
    Power loss       less than 2w or 10VA
  • Specifications

  • Rated voltage     		220V,230V
    Reference Frequency 50Hz
    Class class1, class2
    Basic Current
    (Maximum current) A    		 1.5(6)
    2.5(10)    		 5(20)
    5(30)    		 10(40)
    15(60)    		 20(80)
    30(100)
    Or design other specified meter
  • Outline & installation size
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  • Connection
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