Product Name: Single Phase Multi-tariff Electronic Watt-hour Meter
Model Number: DDSF256

Application:
Type DDSF256 single phase electronic multi-rate watt-hour meter is a kind of new-style meter and absorb domestic and overseas new techniques. It is a kind of potent measuring instrument for adjusting electric power load and reasonably prepare electric power source. It can measure user electric energy consumption by use-of -time. Its technical performance are completely conform to the stipulated requirements of National Standard GB/T17215-1998<>and international standard IEC61036. The meter is used for measuring rated frequency 50Hz or 60Hz three phase AC active energy electric power consumption and can realize many tariffs calculating cost and collecting transcription meter functions.
Functions and features:
1. Have 4 tariffs, 12 daily period of times, may select single tariff function in weekend.
2. Inner emplaced clock, after power cut down, the message is preserved forever, inner emplaced spare batteries and free of maintenance.
3. The direction of electric power can be distinguished automatically, accident is inspected automatically.
4. Infrared carrier wave communication and RS485 serial port communication, meter is set up by program and password is protected.

Technical parameters:
Accuracy: Class 1.0 or Class 2.0
Rated current(A): 1.5(6), 1.5(9), 2.5(10), 3(12), 5(20), 5(30), 10(40), 15(60), 20(80), 20(100), 30(100)
Starting Current: 0.4%lb or 0.5%lb
Insulation Performance: AC voltage 2KV for 1 minute impulse voltage 6kv