Input Unit: Three-channel
Basic Accuracy: Class 0.1, ±(0.1% of reading + 0.05% of full scale)
Measurement Bandwidth: DC & 0.5Hz-100KHz
Input Range: 
Voltage: 0.3V-1000V

Voltage has 6 ranges: 1000V, 600V, 300V, 150V, 60V, 30V.  

Current: 0.005A-50A, 0.5mA-5A (expandable current sensor)  

Standard 50A board, 6 ranges: 50A, 20A, 10A, 5A, 2A, 1A

Optional 5A board (specify when ordering), with 6 voltage settings: 5A, 2A, 1A, 500mA, 200mA, 100mA.  

External current sensor maximum range selectable at 10V, with 6 voltage settings: 10V, 5V, 2V, 1V, 0.5V, 0.2V. 

Measurement parameters:  
Voltage U, current I, frequency f, active power P, reactive power Q, apparent power S, power factor PF,  

peak voltage U±PK, peak current I±PK, peak factor CF, cumulative energy E, harmonic distortion, harmonic components, efficiency, etc.

Allowed overload: 120% of voltage and current range
Sampling rate: 100,000 times/second (16-bit simultaneous sampling of voltage and current)
Filtering:     
Line filtering: cutoff frequencies of 500 Hz and 5.5 kHz;

Frequency filtering: cutoff frequency of 500 Hz;

Harmonic measurement: Maximum 1st to 50th harmonics; accuracy grade: A(I) class (GB/T14549-93 Appendix D)  
Efficiency measurement: Optional: speed and torque interface, capable of measuring efficiency  
Display mode: Seven-window LED display  
Data display update: Display refresh cycle adjustable from 0.1 seconds to 20 seconds
Communication interface: Standard interfaces: USB, RS232/485; optional interface: Ethernet port  
Operating environment: Temperature (0–40)°C  
Humidity (20%–75%) RH  
Atmospheric pressure (86–106) kPa  
Instrument weight: Approximately 5.0 kg
Total power consumption: <10 VA  
Operating voltage: AC 85 V to 265 V, 50/60 Hz  
Dimensions: Width × Height × Depth 223.5 × 151.5 × 384 mm  
Cutout dimensions: Width × Height 209 × 128 mm