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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)
 
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                                |  |  
                                | 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℃
 
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                                | 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)
 
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                                | 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
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