Product description DDSY pre-paid electricity form two-wire state grid meter case liquid crystal display card reader recharge meter using microelectronics technology to measure energy, in line with GB/T17215.321-2008 and GB/T18460.3-2001 standard meter, fully shielded, Fully sealed structure, using advanced SCM processing system for data acquisition, processing and preservation, with good anti-electromagnetic interference, low self-consumption and energy saving, high precision without calibration, anti-electricity, high overload, long life . Main features: Application of computer management, after the purchase of electricity, after the use of electricity; in the rated current range can limit the maximum use of power; a form of a card, special card, lost card without loss of electricity, make-up card reuse; electric card can be two-way transmission Data; can automatically power off the alarm users purchase electricity; when the electricity is zero, it will automatically switch off and power off; and it has a certain anti-theft software design. DDSY5188 electronic single-phase prepaid energy meter is suitable for active energy metering with a frequency of 50Hz or 60Hz. It is installed in indoor or outdoor meter boxes for use. Suitable for ambient temperature -20 ~ +50 °C, relative humidity does not exceed 85%, and the surrounding air should not have corrosive gases, to avoid dust, salt spray, condensation and other effects. ![2345_image_file_copy_4.jpg]() Specification Model | DDSY5188 | Accuracy | Class 1.0 | Reference voltage | 220V | Reference current | 5(20)A,10(40)A,15(60)A,20(80)A | Meter constant | See brand name callouts | Display method | LCD | Interface mode | pulse |
Basic error Load current(I) | Power factor cosΦ | Basic error(%) | Class 1.0 | 0.05Ib≤I<0.1Ib | 1.0 | ±1.5 | 0.1Ib≤I≤Imax | 1.0 | ±1.0 | 0.1Ib≤I<0.2Ib | 0.5L | ±1.5 | 0.8C | ±1.5 | 0.2Ib≤I≤Imax | 0.5L | ±1.0 | 0.8C | ±1.0 |
Ib is the rated current and Imax is the rated maximum current. Starting current: The meter has a reference voltage, a reference frequency, and a power factor of 1.0. When the load current is 0.4% Ib/1.0, the meter should have a pulsed output or a flashing light that represents the power output. Immersion: When the voltage loop adds the reference voltage and there is no current in the current loop, the meter will output no more than 1 pulse within 10 times of a pulse generated by the starting current. Power consumption: ≤ 2W (10VA) The main structure: a flame-retardant ABS shell, strong, sealed, and good shielding. Data processing: The energy metering pulse is sent to the CPU via an optocoupler and stored in the non-volatile EEPROM. From the computer management information system, an IC card reader/writer is used to write a certain amount of power and a microprocessor system that monitors the required IC card input table. After the CPU operation, the display, alarm, and cutoff status signals are prompted. ![.jpg]()
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