Digital current meter and methods of use thereof for leakage/touch current and device interoperability testing

A method for testing a device under test comprising:

• connecting at least one probe to a device under test, wherein the at least one probe is electrically connected to touch probe circuitry;
• detecting, via the at least one probe and using the touch probe circuitry, an analog leakage or touch current of the device under test while the device under test is connected to a power source;
• converting, using analog to digital converter circuitry, the analog leakage or touch current of the device under test to at least one digital value representative of the analog leakage or touch current of the device under test;
• and
• displaying, on a user interface, the at least one digital value representative of the analog leakage or touch current of the device under test.

A method for testing a device under test comprising:

• connecting a test apparatus to a power source;
• connecting a device under test to the test apparatus;
• detecting, using current monitoring circuitry of the test apparatus, an analog differential current flowing through power wiring of the test apparatus that electrically connects the power source to the device under test;
• converting, using analog to digital converter circuitry, the analog differential current to at least one digital value representative of the analog differential current;
• and
• displaying, on a user interface, the at least one digital value representative of the analog leakage or touch current of the device under test.