[General Introduction]
Aadopting high integrated circuit and SMT manufacture technology, DT(S)YS22Dx Three Phase Four Wire Prepayment Electric Energy Meter is featured with high accuracy, high overload, low power consumption.

[Functions and Characteristics]
* User purchases electricity through international standard IC card before usage.
* Meter reading CPU card
* Negative energy consumption record
* Automatic bill settlement
* Multi-tariff function.
* Residential energy alarm to remind users purchasing electricity in time.
* Load control and load can be setted.
* Self verifying.
* RS485 communication port (optional).
* Compatible with the energy vending management system.
* Infrared remote control.
* Two level alarm to hint special situation.
* Large LED display with large characters.