Multimeter

A multimeter is a combined instrument for measuring several parameters in electrical circuits and changing electrical and electronic components. Multimeters are available in handheld and benchtop versions.

Pic. 1. Handheld Multimeter AM-1060

Pic. 2. Benchtop Multimeter

Benchtop multimeters typically have higher measurement accuracy and speed, a larger measurement range, and a larger number of measured quantities. Benchtop multimeters usually have the ability to measure using a 4-wire circuit.

To implement different measurement modes, a mode switch is used. In hand-held devices, the mode switch is usually located in the middle of the device. In the simplest models of multimeters, this same switch is used to select the measurement range. Benchtop devices use push-button controls.

Pic. 3. Mode Switch

Pic. 4. Push-Button Control

To implement different measurement modes, multimeters use different input jacks to connect the device to the circuit being measured. Most often, a separate set of connection sockets is available for the current measurement mode and when using a 4-wire connection scheme for measurement.

Pic. 5. Hanheld Multimeter Sockets

Pic. 6. Benchtop Multimeter Sockets