The DDSY540 and DTSY540 series single-phase and three-phase RF card prepaid energy meters adopt advanced smart card technology and microelectronic metering technology, which have the advantages of high accuracy, multiple functions, low power consumption, security and confidentiality, and simple operation. The product complies with the standards of GB/T18460.3-2001 "Prepaid Energy Meters" and GB/T17215.321-2008 "Level 1 and Level 2 Static AC Active Energy Meters". This series of electric energy meters can be integrated with our company's smart water meter and smart gas meter one card. Users only need one card to manage the electricity meters, water meters, and gas meters used in their homes at the same time.

Function and characteristic

① Prepaid function: Pay first before using electricity, automatically cut off power if overdue, and automatically turn on power after swiping the card again for renewal.

② Constant display alarm function: Users can set their constant display alarm value. When the remaining battery level is below this value, users will be reminded to purchase electricity in a timely manner.

③ Power outage alarm function: Users can set their power outage alarm value. When the remaining power reaches the power outage alarm value, the meter will automatically power off. At this time, the card can still be plugged in to power on, reminding users to purchase electricity immediately.

④ Power off function: When the remaining power in the meter is zero, the meter will automatically cut off power.

⑤ Dynamic encryption: using dynamic encryption algorithms, with strong confidentiality, the data in the table can be retained for 10 years after power failure.

⑥ Current limiting power-off: When the current exceeds the set value, the electricity meter will be powered off for protection. When the load decreases, the electricity meter will automatically restore power.

⑦ Ladder pricing function: Ladder pricing function can be selected, supporting five types of ladder pricing.

⑧ Support multiple cards per table.

performance parameter