Why We Use Digital MultimeterWhy We Use Digital Multimeter

The Multimeter is mainly used to measure the three basic electrical characteristics of voltage, current, and resistance. A Multimeter is an electronic instrument, every electronic technician, and engineers widely used piece of test equipment. Some of them can equally be used to measure duty circle and temperature. However, the most advanced models are designed with more features. These can measure micro-amps, decibels, and rotations per minute. Others have graphing capabilities and waterproof castings. Multimeter also comes with a wide range of accessories such as leads, clamps, and probes.

The Multimeter is providing many measurements and tests; however, the most multimeter can record the following:

  1. Alternating Voltage,

  2. Direct Voltage

  3. Alternating Current

  4. Direct Current

  5. Resistance in Ohms

  6. Capacity (farads)

  7. Conductance (Siemens)

  8. Decibels

Importance Of Multimeter:-

The digital multimeter is better used as a voltmeter because it is resistance higher, 1 M or 10 M. Resistance measurements use a small battery inside the meter to measure the amount of current that flows from the meter into the circuit under test. The circuit under test must underpowered except for the small current supplied by the meter itself.

Some multimeter has a continuity check, resulting in a loud beep if two things are electrically connected. This is helpful if, for instance, you are building a circuit and connecting wires or soldering; the beep indicates everything is connected and nothing has come loose. You can also use it to help prevent short circuits.

Usually, the most multitester can measure a wide range of properties such as frequency, inductance, resistance, and conductance. Some of them can equally be used to measure duty circle and temperature. However, the most advanced models are designed with more features. These can measure micro-amps, decibels, and rotations per minute. Others have graphing capabilities and waterproof castings. Multimeter also comes with a wide range of accessories such as leads, clamps, and probes. Some multimeter even comes with extra batteries and product warranties that help them for a very long time.

To measure an unknown AC voltage, the voltage is first attenuated to get the suitable range and then rectified to DC signal and the analog DC signal is fed to A/D converter to get the display, which indicates the RMS value of the AC signal. The Advanced multimeter have the ability to measure the electrical components, like transistors or capacitors.

by Jassi Singh
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Author writes on multitester digital equipment which helps in the voltage measurement and testing of the electronic circuit board.  These multitester include digital multimeter, digital clamp meter, infrared thermometer.
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