What is the minimum resolution for the ammeter during the AC superimposed test?

The minimum resolution for the ammeter during the AC superimposed test is +/- 1 mA. This level of resolution is important because it allows for accurate measurements of small AC currents that might be superimposed on a DC signal. When conducting electrical tests, especially in marine applications, precise current readings are crucial for ensuring safety and compliance with regulatory standards. A resolution of +/- 1 mA strikes a balance between sufficient detail for detecting small fluctuations while avoiding the inaccuracies that can arise from too much granularity in the readings. It provides the necessary sensitivity to identify current variations without overwhelming the tester with unnecessary complexity or variability in the measurements.