DDS67: Single-Phase Static Watt-Hour Meter (RS-485)


DDS67 single phase static watt-hour meter, class 1, bidirectional measurement.


Conformed standards:

  • Chinese GB/T 17215-2002 Alternating current static watt-hour meters for active energy (class 1 and 2) equivalent to IEC 1036.
  • Chinese JJG596-1999 Static meter.
  • Chinese DL/T 698-1999 Low voltage automatic meter reading system specification.     
  • Chinese DL/T 645-1997 Multi-function watt-hour meter communication protocol equivalent to IEC 1107.


DDS67 Table 2



  • Communication: RS-584 port which fits the DL/T 645 1997 standard and supports automatic meter reading.
  • Communication port protection: The RS-584 port is resistible to the 8kv ESD and 5 minutes resistible to 380V alternating current concussion.
  • Display: the 8 digitals, with 2 decimals displaying LCD.
  • Clock: built in clock keeps operating even meter power is cut.
  • Low Power: circuit active power less than 0.8 W