Operation and Features 2Keysight U2722A/U2723A User’s Guide 35Sourcing and MeasurementThe fundamental concepts of the U2722A/U2723A are as shown in Figure 2-1.When programmed to source voltage mode, the ammeter (I meter) is connected inseries with the voltage source (V source) and the output. If the U2722A/U2723A isprogrammed to source current mode, the voltmeter (V meter ) is connected acrossthe current source (Isource ) and the output.Figure 2-1 U2722A/U2723A fundamental conceptsImeterVsource VmeterIsource