On the base of our excellent single phase electronic meter, DDSY446 series single phase electronic prepay meter is a new design researched for energy measure, loading control and user information etc. Multi-function, a new IC prepay meter and its energy sale management system. It emphasize on running reliability, electronic energy charge realization management modernization to change the using before payment or arrears situation, arriving at charge in advance, favorable to energy enterprise development
Advantages:
High precision: precision 1.0 level, operation control precision 0.5 level
Low wastage: circuit power consuming 0.1 to 0.2VA, mass using to reduce consuming a lot
Non-maintaining: meter precision invariableness up to 10 years, period maintaining not required
Small volume and weight
Theft against: Positive and negative measure function, very small sampling resistance value, effective energy theft against negative connection, short circuit and additive magnetic field
Charge in advance: accelerating power supply dept capital reclaiming to guarantee the energy commodity supply actually
Reading not required: energy using data logged automatically by IC card to reduce reading services
Capacity setting: power supply dept sets its maximal current dated on different user's capacity requirement. When the user is overloading, the circuit break down automatically and recover after a certain delay
Destroy against: inner EEPROM memory for data holding over 20 years to ensure no suddenness (dead-lock or other losing situations), without data missing to save meter operation information for ever
Data encrypt style: simulating telecoms SIM card encrypt style that is the operator running depends on its password to ensure system security, reliability fully
