भुगतान & नौवहन नियमों:
digital watt hour meter,
AC panel meter
Multi-rate Electronic Watt-hour Meter , waterproof digital watt hour meter
Type DDSF977 single phase DIN rail watt-hour meter is a kind of new style single phase electronic multi-rate watt-hour meter, energy data display adopt 4 digits wide tempera-ture type crystal display, with many functions of multi-rate (time-of use) energy measurement, infrared carrier wave communication and RS485 serial port communication reading meter, etc. The meter completely accord with relevant technical requirements of class 1 and class 2 single phase energy meter stipulated in National standard GB/T17215-2002 and international standard IEC1036. it has followeing features:Good reliability, small volume, light weight, specious nice appearance, convenient installation, etc.
Functions and features :
■ May select 35mm DIN rail installation or installation on the board.
■ Have 3 tariffs, 12 daily period of times, may select single tariff function in weekend.
■ Inner emplaced clock, after power cut down, the message is preserved forever,inner emplaceed
■ spare batteries and free of maintenance.
■ The direction of electric power can be distinguished automatically, accident is checked automatically.
■ Infrared carrier wave communication and RS485 serial port communication, meter is set up by
program and password is protected.
Technical parameters :
Rated voltage (V)
Rated current (A)
AC voltage 2KV for
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