A special option, called "ZERO FLOATING" is needed for measuring this leakage current because it is not significant compared to the current the generator can deliver. Thus, reading it on the displays of front panel is not accurate at all.
With this option 3 outputs are available for the customer:
- HV output
- Measurement output
- Ground output
Measurement of leakage current is made by using an external ampere meter inserted between Measurement Output and Ground Output. With an appropriate ampere meter, very small current can be measured. Thus the accuracy of the current measurement depends on the accuracy of the Ampere meter.