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DDS989/DTS989 series electronic kilowatt hour meters

● Standards: IEC 62053-21, IEC 62056-21
● Accuracy (class): 1.0
● Starting conditions: Nominal frequency, 1.0 power factor, load current >0.4 % nominal value. Equipped withelectrical pulses and continuous electrical pulse display
● No-load rotation: It is regulated that within given time, there is no pulse output, while the voltage is more than 115 % of reference value and current circuit is off
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Applications and functions

  • Standards: IEC 62053-21, IEC 62056-21

  • Accuracy (class): 1.0

  • Starting conditions: Nominal frequency, 1.0 power factor, load current > 0.4 % nominal value. Equipped withelectrical pulses and continuous electrical pulse display

  • No-load rotation: It is regulated that within given time, there is no pulse output, while the voltage is more  than 115 % of reference value and current circuit is off

  • Mistake linearity: 5 % lb~lmax

  • Rated voltage (V):

  • DDS989: 230

  • DTS989: 3x220/400

  • Rated current (A):

  • DDS989: 1.5 (6), 2.5 (10), 5 (20), 10 (40), 5 (30), 10 (60), 15 (60), 20 (80)

  • DTS989: 3x1.5 (6), 3x3 (6), 3x5 (20), 3x10 (40), 3x15 (60), 3x5 (30), 3x10 (60)

  • Frequency (Hz): 50/60

  • Ambient temperature (°C): -5 ~ +55

  • Storage and limit temperature (°C): -40 ~ +70

  • Power loss:

  • voltage circuit ≤ 3 W and 10 VA

  • current circuit ≤ 4.0 VA




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