1. DDSY1675 single-phase electronic prepaid electric energy meter is a new type of C card prepaid electric energy meter developed by our company on the basis of single-phase electronic energy meter with excellent performance, which has multiple functions such as energy metering and load control. This meter is an ideal product for reforming the current electricity consumption system, realizing the commercialization of electric energy, and solving the difficulty of charging. The meter uses special large-scale integrated circuit, with fewer peripheral components, simple structure, high reliability, and low power consumption , long service life, etc. It can be used to measure single AC active electric energy with rated frequency of 50Hz. All performance indicators of the product comply with all technical requirements for single-phase sub type prepaid electric energy meters in GB/T17215.321-2008 Class 1 and Class 2 Static AC Active Energy Meters and GB/T18460.3-2001 IC Card Prepaid Electricity Selling System.

2. DTSY1675 three-phase four wire electronic prepaid watt hour meter is a new type IC card prepaid watt hour meter with multiple functions such as energy metering, load control and user information management. It is an ideal product for reforming the power consumption system, realizing the commercialization of electric energy, solving the difficulty of charging and regulating the load state of the power grid. There are two access modes for this series of three-phase four wire electronic prepaid electric energy meters: direct access type or through transformer access type. All performance indexes of the product meet all technical requirements for three-phase sub type prepaid watt hour meters in GB/T17215.321-2008 Class 1 and Class 2 Static AC Active Energy Meters and GB/T18460.3-2001 IC Card Prepaid Power Selling System.

1. DDSY1675 single-phase electronic prepaid electric energy meter
(1) Active electric energy measurement, no adjustment is required for long-term work.
(2) ADE7755 electric energy metering chip of American ADI company is adopted, with high precision, wide measuring range, high sensitivity and high stability.
(3) There are few peripheral components, low power consumption, and the meter is simple in structure. All components in the meter are electronic components with long life and high reliability, so they have the characteristics of long life and high reliability.
(4) When the remaining power is equal to the alarm power, the indicator lights up to remind the user to purchase power in time. Trip and power off when the remaining power is 0.
(5) Overload automatic power-off is convenient for power sector to implement capacity increase.
(6) High capacity magnetic latching relay, low power consumption and high reliability.
(7) Logic encryption IC card is adopted for power purchase card, and each power purchase card has a random password to prevent forgery.
(8) One meter (household) and one card, multiple encryption, with good security.
(9) With data write back function, it is convenient for power department management.
(10) The supporting IC card power sales management system has complete power sales management functions.
2. DTSY1675 three-phase four wire electronic prepaid electric energy meter
(1) Measure three-phase active electric energy.
(2) Three phase power supply and power failure of any two of the four lines will not affect the measurement accuracy.
(3) Using imported memory, the data of electricity meter can be saved for more than ten years without loss in case of power failure.
(4) ADE7752 electric energy metering chip of American ADI company is adopted, with high precision, wide measuring range, high sensitivity, high stability, and no need to adjust for long-term operation.
(5) There are few peripheral components, low power consumption, and the meter is simple in structure. All components in the meter are electronic components with long life and high reliability, so they have the characteristics of long life and high reliability.
(6) When the remaining power is equal to the alarm power, the indicator light will be on to remind the user to purchase power in time. Trip and power off when the remaining power is 0.
(7) Logic encryption IC card is adopted for power purchase card, and each power purchase card has a random password to prevent forgery. One meter (household) and one card, multiple encryption, with good security.
(8) Overload automatic power-off is convenient for power sector to implement capacity increase.
(9) With data write back function, it is convenient for power department management.
(10) The supporting IC card power sales management system has complete power sales management and power consumption monitoring functions.

Xi'an Yongming Instrument Technology Co., Ltd. was registered and founded in 2006. The company focuses on the instrument industry and is a diversified product comprehensive industry company committed to research and development, production and sales. At present, the company has three major product series: the first product series: electrical measuring instruments, especially lightning arrester monitor instruments, with good seismic resistance, good return to zero and good accuracy. The second product series: independently developed IC card prepaid water meter, underground full waterproof water meter, intelligent NB-IOT Internet of Things remote water meter, large caliber water meter. The third product series: prepaid electronic watt hour meter, intelligent NB-10T remote transmission watt hour meter, multi-user prepaid watt hour meter and other products. After more than ten years of development and accumulation, the company has a number of independent intellectual property rights in the main core technology links of intelligent water and electricity meters and software, and can provide users with a variety of products. Serialized professional instruments can be customized according to customer needs for scientific and reasonable use of intelligent instruments.

Wang Youquan

wyq4370@126.com

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