This product has high accuracy, high sensitivity, high reliability, wide load, low power consumption, small size, light weight, easy installation and management and so on. Circuit design, used by the components are carefully selected and have greater redundancy, ensure stable operation meters long, and accuracy is not affected by the frequency, temperature, voltage, higher harmonic effects, small start current, potential-free. The sea has bi-directional metering energy function, can accurately measure the positive and negative power in both directions, and accumulating energy in the same direction.

Details:
Specifications and main technical parameters
Specification model
DDS337
Reference voltage (v)
220
Reference current (a)
2.5(10) , 5(20) , 10(40) , 15(60) , 20(80)
Meter constant (imp/kWh)
3200 , 1600 , 800
Basic errors
Load current
Power factor
Basic error (%)
0.05Ib ≤ I ≤ 0.1Ib
1.0
± 1.5
0.1Ib ≤ I ≤ Imax
1.0
± 1.0
0.1Ib ≤ I ≤ 0.2Ib
0.5L 0.8C
± 1.5
0.2Ib ≤ I ≤ Imax
0.5L 0.8C
± 1.0
Starting
In the reference voltage, under terms of reference frequency and power factor is 1, when 0.4% Ib is the load current, and electric meter can start and continuous recording.
Dive move
When a 115% reference voltage, disconnect circuit, electric energy pulse output of not more than one.
Electrical parameters
Working voltage: 0.9 ~ 1.1 reference voltage
Limit operating voltage: 0.6 to 1.25 reference voltage
Insulation voltage: ≥ 2000VAC
Power consumption: < 1W , 5VA

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