Modification of hardware and software to achieve the following measuring ranges:

Current high voltage DC:
10 µA / 0.001 µA / ±1% vMW ±3 digits
100 µA / 0.01 µA / ±1% vMW ±3 digits
1 mA / 0.0001 mA /±1% vMW ±3 digits
5 mA / 0.001 mA / ±1% vMW ±3 digits
1A / 0.0001 A / ±1% vMW ±3 digits

Voltage High voltage DC:
8000 V / 0.1 V / ±1% ±3 digits

Current high voltage AC, RMS measurement:
10 µA / 0.001 µA / ±1% vMW ±3 digits
100 µA / 0.01 µA / ±1% vMW ±3 digits
1 mA / 0.0001 mA /±1% vMW ±3 digits
5 mA / 0.001 mA / ±1% vMW ±3 digits
1A / 0.0001 A / ±1% vMW ±3 digits

Voltage High voltage AC:
6000 V / 0.1 V / ±1% ±3 digits

Legend:
Measuring range / resolution (digit) / accuracy in % of measured value ± counts of least significant digit)