General
DDSY168E is a single phase prepayment electricity meter in a compact, user-friendly, easy to install, with tamper detection capabilities. It is designed by advance computer and electromagnetic compatibility technology, adopting high accurate and high reliable IC. All its performances are conformity with the standard of IEC61036.
Features
Operate with two way smart card.
Easy installation
Low credit and No credit alarm with LED indication.
Programmable load limiting.
Tamper-proof design and construction.
Records the full energy consumed even if it is in tamper condition.
Symbolic annunciation is present on the LCD screen to indicate tamper and fraud, open meter cover and tariff information.


4. Technical Specifications
1) Accuracy: class 1.0
2) Reference voltage: 220 VAC
3) Operating Voltage Range: 176 to 253VAC
4) Rated Current: 10(40) A
5) Reference Frequency: 50 Hz ± 2%
6) Meter Constant: 1600 imp/kWh
7) Power consumption: Voltage circuit ≤2W, Current circuit ≤10VA
8) Environment conditions:
Operating Temperature Range: -10ºC to +70ºC
Store and Transport Temperature Range:-25ºC to +80ºC
Relative Humidity: annual mean value