DDSY6789 single phase electronic prepaid
energy meter performance at the electron-type to prevent the thef of electric
energy meter based on the use of dedicated control prepaid chip developed. In
line with the national standard GB/T17215-2002,GB/T18460-2001.
Features
Measurement of active power, long-term use
without adjustment
High-strength eneryption algorithm, one
meter one card, mutual non-GM, has a good reliabilty
First purchase of electricity then uses
electricity. Set alarm levels, electricity consumption can be acousto-optic
alarm and power failure alarm
Power-down after more than 10 years dataretention

Insert the user card, the power meter to
the card information in the write-back of electricity, the sale of electricity
via a computer system can know the operation of electric energy meter
Maintain the use of large capacity magnetic
relays, wide operating voltage range, high reliability

Reference frequency:50Hz

Reference current: 1.5(6)A, 2.5(10)A,
5(20)A, 10(40)A, 20(80)A

Level accuracy: 1 or 2

Logic design with anti-submarine

Voltage range: 0.7Un~1.3Un

Power:< 1W/5VA

Environment conditions:

Standard working conditions: -3℃0~70℃

Extreme operating temperature: -40℃~75℃

Relative humidity: ≤85%