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 DDS566-L01

 DDS566-L02

 DDS566-L03

 DDS566-L04

Single phase electronic watt-hour meter (LCD)
   
    
    
DDS566 single phase electronic watt-hour meter adopts LSI, latest micro-electronic technology & SMT technique, with advanced processing and simple structure and modern special IC chip to raise the meter’s dynamic working scope. Long-life and high-reliability components are adopted to ensure the long-term operation stability of the energy meter. It used for measuring rated frequency 50Hz/60Hz active energy with high accuracy and little power loss. DDS566 series Single Phase electronic watt-hour meter has the features of anti-tamper, high allowable overload & light weight etc.
     DDS566 series Single Phase electronic watt-hour meter conforms to the standards as follow: GB/T 17215-2002 (IEC61036-2000)
 
Technical parameters
     
     class:           1.0 or 2.0
     rated voltage:   100V, 110V, 120V, 220V, 230V, 240V  (three wire 100/220V)
     rated current:   1.5(6)A, 5(30)A, 10(40)A, 15(60)A, 20(80)A, 10(100)A
     power loss:      0.5W
     operating temperature: -30℃-+60℃
     
Main features
     Excellent against tamper and fraud function
     Good electromagnetic compatibility (EMC)
     High reliability, high precision under low load. 
     Program and meter reading through RS-485 communication interface (optional)
     Infrared communication interface (optional)

       
Special tamper and fraud proof function (Customer specified)
    The meter can continue to register active energy accurately under conditions a, b, c, d & e
    a) On reversal (Interchange) of input (line) and output (load) terminals.
    b) On reversal (Interchange) of phase and neutral at the mains or incoming supply side of meter terminals
    c) Using earth in place of neutral (i.e. when load is not terminated back to the meter and instead current is drawn partially or fully through a local earth) irrespective of the phase and neutral connections to the meter.
    d) The meter shall be immune to tampering through application of external magnetic field (A.C Electro-Magnet or D.C magnet)
    e) When Neutral is absent from both side (Supply side as well as load side) and load is operated through earth.
    f) Any combination of the conditions described above under (a), (b), (c), (d) & (e). The accuracy of the meter should not differ with main accuracy