Full wave DC electrical instrument, a new generation multifunction DC electrical method instrument with the latest electronic technologies, e.g. full wave recording of current and potential, 32bit A/D, high power control, embedded real-time operation system and FPGA etc. The volume and weight of the instrument are obviously reduced. 

1、Full wave recording of current and potential 

       Measuring voltage range：±40V (32bit A/D)  

       Measuring voltage resolution：5nV 

       Voltage measure accuracy：When U＞3mV, accuracy≤0.1%; when U≤3mV, accuracy=±1uV  

       Apparent polarizability accuracy：Relative error≤±0.2%  

       Measuring current range：0 -6000 mA (32bit A/D)  

       Measuring current resolution：10nA  

       Current measure accuracy：When Ip≥10mA，±0.1%  

       Input impedance： ≥50MΩ  

       Input protection voltage：1000V 

       Interference Suppression on 50Hz Power Frequency：＞120dB 

       SP compensation range：±40V(real-time automatic digital compensation at the whole range) 

2、Transmitter 

       Maximum power supply voltage：1400V  

       Maximum power supply current：6A  

       Maximum power：7500W  

       Power supply time：1-64s  

       Power suspension time：1-64s  

       Protection：Overvoltage & overcurrent 

3、Other parts 

       Processor：ARM Cortex-A8  

      Operation system：Embedded Linux real-time system 

      Screen：6.4-inch 24bit true-color LCD 

      LCD brightness：1200cd/m2, visible in daylight  

      Storage capacity：16G-128G optional  

      Data Transmission：USB 2.0  

      Battery capacity：16.8V 12.5Ah, continuously working for 16h  

      Power interface：External battery or adapter  

      Waterproof level：IP66  

      Working temperature：-10-+50℃ 

      Volume：300 x 225 x 132 mm  

      Weight: 5.6Kg