AC+DC measurement

AC+DC measurement: Measure signals with AC and DC components (including various waveforms)
Ordinary multimeters can only measure pure AC/DC signals. If the measured AC signal is mixed with the DC signal, the AC signal reading is meaningless. For Uni-Trend’s multimeters with AC+DC function, the AC and DC components are measured together.
Importance of AC+DC signals: Reduce equipment failure caused by DC underamplitude. High frequency interference of AC can be observed during DC measurement.
Examples: Railway-transformation central control system, Power-photovoltaic inverter control cabinet, Medical-spiral CT