1.Usage and characteristic:
1.1 Product overview:
Single phase prepayment watt-hour meter uses imported specific large-scale integrated circuits, 16 bit A/D conversion, digital multiplier, digital sampling and processing technology and SMT technology. It can measure active power consumption in three-phase three-wire or three-phase four-wire AC grid which the measuring rated frequency is 50Hz or 60 Hz.
1.2 Main features:
It can be applied to computer management, first purchase electricity then consume electricity. Limit the maximum power within rated current range (defined by the electricity sector). Each meter has a card. The card is specialized. You can still use electricity if you lose the card, and you can fill the card to continue to use. The electric card can realize bidirectional data transmission. It can switch off automatically when the electricity is zero. It has anti-theft software design. It can be installed indoors. The applicable environmental temperature is -20~+55ºC , the relative humidity can not be over 85%. There is no corrosive gas in the air. Avoid dust, mold, insets etc.
2. Specifications and main technical parameters
2.1 Specifications
| Model | Precision
Grade | voltage specification(V) | current specification(A) |
| DDSY156 | 1.0 | 220 | 5(20),10(40) ,20(80) |
2.2 main technical parameters
| item | technical parameter |
| Precision grade | Active power 1.0 grade,2.0grade |
| Reference voltage(Un) | 220V |
| Reference current(In) | 5(40)A,10(60)A,20(100)A |
| Reference frequency | 50Hz |
| Working voltage range | stipulated working voltage range:0.9Un~1.1Un |
| Expanded working voltage range:0.8Un~1.2Un |
| Working temperature range | stipulated working voltage range:-25ºC ~+55ºC |
| limited working voltage range:-40ºC ~+70ºC |
| Storage and transportation limited temperature range:-40ºC ~+70ºC |
| Power consumption | Voltage circuit:≤2W/5VA;current circuit:≤1VA |
2.2.1 Basic error
| Load current | Power factor | percentage margin of error (%) |
| 0.05Ib≤I<0.1Ib | 1.0 | ±1.5 |
| 0.1Ib≤I≤Imax | ±1.0 |
| 0.1Ib≤I<0.2Ib | 0.5(lag) 0.8(lead) | ±1.5 |
| 0.2Ib≤I≤Imax | ±1.0 |
HAIXIN ELECTRONIC TECHNOLOGY Co., Ltd. is a technology-based enterprise committed to the R&D and production of new type power and electronic products. The company is mainly engaged in multifunctional electric power meters, single-phase current and voltage meters, active power meters, reactive power meters, frequency and power factor meters, CPS control and protective switches, electrical fire monitors and other series products. The company has always been people-oriented and adhered to the business philosophy of "harmony, aggressiveness, high efficiency and development". It has not only a pioneering R & D team composed of professional engineers and experts from research institutions, but also a highly qualified and aggressive sales and marketing team! In addition to the national electricity system intelligent distribution projects, our products are also widely used in petrochemical equipments, municipal environmental protection equipments, light industry and light textile equipments, food and medical equipments, rail transportation equipments, iron and steel metallurgy equipments, aerospace equipments and other industries. Our products apply advanced production equipments and strict management system in the manufacturing process. In accordance with national norms, the company has established debugging room, laboratory and aging room and is equipped with advanced detection equipments. The Company adheres to the market commitment of "stable and reliable products, high quality and high efficient services which is also taken as the company's core competitiveness. The Company continues to understand customer demand, strives to meet customer demand and provides customers with perfect products and high quality services.
