The multimeter has the following controls:

  Parameter   Description
Measurement Options
Ammeter—Measures current flowing through the circuit in a branch. Insert the multimeter in series with the load to measure current flow, as shown below. To measure current at another node in the circuit, connect another multimeter in series at that point and activate the circuit again.
Voltmeter—Measures voltage between two nodes. Attach the voltmeter's probes in parallel with the load, as shown below.

Ohmmeter—Measures resistance between two nodes. The nodes and everything that lies between them are referred to as the “component network”. To measure the resistance, attach the multimeter's probes in parallel with the component network, in the same manner as shown for the voltmeter.

To get an accurate measurement, make sure that:

  • there is no source in the component network
  • the component or component network is grounded
  • there is nothing else in parallel with the component or component network.
Decibels—Measures decibel voltage loss between two nodes in a circuit. To measure the decibels, select this option and attach the multimeter's probes in parallel with the load, in the same manner as shown for the voltmeter.
Signal Mode
Sinewave—Measures the root-mean-square (RMS) voltage or current of an AC signal. Any DC component of the signal is eliminated so that only the AC component of the signal is measured.
DC—Measures the current or voltage value of a DC signal.

To measure the RMS voltage of a circuit with both AC and DC components, connect an AC voltmeter as well as a DC voltmeter across the appropriate nodes and measure the AC and DC voltage.

The following formula can be used to calculate RMS voltage when both AC and DC components are in the circuit. This is not a universal formula and should be used in conjunction with Multisim only.
Set Displays the Multimeter Settings dialog box.