socomec 4145 - Page 86

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8. Specifications
8.1 Frequency Measurement
Nominal
frequency
Measurement
range
Resolution
Accuracy
50Hz
42.50~57.50 Hz
0.01Hz
±0.1%
60Hz
51.00~69.00 Hz
0.01Hz
±0.1%
Note: measured on Reference Voltage Input A/L1.
8.2 Voltage Input
Numbers of input
4 (3 phase + neutral) DC coupling
Max continuous input voltage
1000Vrms
Range of nominal voltage
50 to 500V
Max pulse peak voltage
6kV
Input impedance
4MΩ/5pF
8.3 Current Input
Numbers of input
4 (3 phase + neutral) DC coupling
Type
Clamp Current Sensor, with mV output
Nominal input range
0~±5.625Vpeak, 0~3.97Vrms sinewave
Input range
1 to 3000Arms with supplied current clamp
Input impedance
50kΩ
8.4 Sampling System
Resolution
8 channels 16 bits AD
Sampling rate
20kS/s for each channel, 8 channels sample synchronously
RMS sampling
5000 points for 10/12 cycles (according to IEC 61000-4-30)
PLL sync
4096 points for 10/12 cycles (according to IEC61000-4-7)