Datasheet
8. Specifications 
8.1 Frequency Measurement 
Nominal frequency 
Measurement range 
Resolution 
Accuracy 
50Hz 
42.50~57.50 Hz 
0.01 Hz 
±0.1 Hz 
60Hz 
51.00~69.00 Hz 
0.01 Hz 
±0.1 Hz 
400 Hz 
340 ~460 Hz 
0.01 Hz 
±0.1 Hz 
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) 
 8.5 Display Mode 
Waveform display 
4 voltages and 4 currents signal waveforms can be displayed 
synchronously, displayable under Scope and Transient modes. 
Phasor Display 
Intuitively view voltage and current phases of each phase 
(Displayable under Unbalance) 
Table Screen 
Displayable under voltage/current/frequency, harmonic, power and 
energy, flicker, unbalance modes. 
Trend Display 
Display Trend record of measurement parameters changes over 
time (Displayable under voltage/current/frequency, power and 
energy, dips and swells, inrush current, flicker, monitoring modes) 
Events Table Display 
Display information of events exceeding limits value (Displayable 
under Dips&Swells, Transient, Inrush current, Monitoring modes.) 
Bar Graph Display 
Harmonic and interharmonic bar graph display mode is more 
intuitive (Displayable under harmonics and monitoring modes) 
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