Adopting special large-scale integrated circuit and manufactured with advanced SMT process, DDYS22Dx Single Phase Prepayment Electronic Meter is featured whit high degree of measuring accuracy, reliable and stable performance, long service life and low power dissipation.
Functions and Characteristics:
* LCD display, LED indicators and mechanical register. Register displays the total amount of consumed power, LCD displays status of the meter and total and residual energy are displayed alternatively by LED indicators.
* IC card prepayment, purchasing before using.
* Meter reading card to monitor and control 125 meters simultaneously.
* Negative energy consumption record and deduction
* Residential energy alarm to remind users purchasing electricity in time.
* Self verifying
* Special unit against tamper and fraud
* RS485 communication port (optional).
* In sync with the electricity vending network software, the meter is convenient to both operator and customer.
| Contents | Technical Specifications |
| Standard | GB/T17215-2002, GB/T18460.3-2001 |
| Measurement | Active | Positive active energy consumption measurement |
| Negative active energy consumption measurement(will be counted into positive active energy consumption) |
| Specification | Rated voltage (V) | 220 |
| Rated current (A) | 2(10) 5(25) 5(30) 10(50) |
| Constant(imp/kWh) | 6400 3200 1600 |
| Accuracy class | 1.0 |
| Rated frequency | 50Hz |
| Output | Output Test | Active Pulse width: 80ms±20% |
| Electrical Parameters | Normal working voltage | 0.8Un --1.15Un |
| Limit working voltage | 0.7Un --1.2Un |
| Power consumption | Voltage Circuit LCD <1.0W 5.0VA LED< 1.5W 5.0VA
Current Circuit <1.0VA |
| Display | Total 99999.9 kWh
Residential 0--99999.9 kWh |
| Storage after outage | >20years |
| Service life of CPU Card | >5000 operations |
| Accuracy of clock | <0.5s/day |
| Communication Protocol | Rs485 | In accordance with DL/T645-1997 |
| Carrier Wave communication | In accordance with DL/T698-1999 |
| Climatical Condition | Normal working temperature | -25--55 |
| Limit working temperature | -30--60 |
| Storage temperature | -40--70 |
| Storage and working humidity | ≤85% |
Established in 1968, Ningxia LGG Instrument Co., Ltd. Specialized in researching & developing, designing, manufacturing and marketing of various smart energy measuring meters. It is the one who manufactured the first electronic energy meter of China. With more than 1, 000 of staffs and over 10 millions of smart energy meters production capacity, as well as 6 millions of smart water, heating and gas meter in total, LGG is already the largest smart energy measuring meters foundation of western China. LGG is growing up along with the China Smart Energy Grid all the time, with the leading technology products and constantly improvement of the systematic service, the company is able to create the best value for all the customers in the field of electricity, water, gas, heat metering and energy efficiency management all the time. Now it has formed series products such as watt-hour meter, water meter, heat meter, gas meter, etc. Meanwhile, the load control terminal devices, collectors, concentrator and comprehensive energy management system are available to be provided as well, the company is already a leading supplier of energy metering products and system solutions in China.
Besides maintaining compact strategic cooperation relationship with the State Grid Corporation of China, LGG never stops on the exploration and pursuit of the international market, parts of LGG products has been applied in the countries of India, Philippines, Bangladesh, Australia, France, South Africa, Morocco, Ghana and Mongolia etc.
Adherence to the "customer satisfaction" as the enterprise objective, LGG will become the backbone of the construction of the smart grid.
To create intelligent life, LGG together with you!
