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- brief introduction
- technical parameter
- Product size
Application
DDS450J series single-phase electronic watt-hour?meter adopts the latest MPU and low-power?consumption large-scale integrated circuit technology?as well as SMT technology, it has many features such?as high accuracy, high stability, visible display, adopts?LCD, can measure electric energy positively and?negatively, and has ability of anti-electricity theft, is?suitable for measuring AC single-phase active energy?of reference voltage 220V and reference frequency?50Hz, and its communication protocol has conformed ?to DL/T6451997 Multi-function Watt-hour Meter?Communication Protocol.?
Main Technical data
1. Executive standard: GB/T 17255-321-2008/ IEC 61036:2000, DL/T645-1997
2. Specified working voltage: 0.9Un~1.1Un
3. Power consumption: less than 2W (10VA)
4. Starting current: class 1 meter: 0.4%Ib; class 2 meter: 0.5%Ib
5. Creeping: anti-creeping logical circuit
6. Specified working temperature: -10℃~45℃
7. Utmost working temperature: -25℃~55℃
8. Strong overload capability: the meter overload ability can reach above 6 times within the accuracy class.
9. It can measure electric energy positively and negatively, can accumulate positively and has function of anti-electricity theft, luminescent tube indicates.
10. Accurate online measurement, strong ability of anti-interference, high reliability, the life can be more than 15 years.
11. Remote interruption of power supply function
12. Output interface RS485 and infrared communication
Remark: according to the requirement, this meter can be equipped with remote breaking function, power failure display function and infrared meter reading function.
External And Installation Size
