- They are more accurate than analog multimeters.
- They reduce reading and interpolation errors.
- The ‘auto-polarity’ function can prevent problems from connecting the meter to a test circuit with the wrong polarity.
- Parallax errors are eliminated. If the pointer of an analog multimeter is viewed from a different angle, you will see a different value. This is parallax error. A digital multimeter’s numerical display solves this problem
- Digital multimeter displays have no moving parts. This makes them free from wear and shock failures.
- The reading speed is increased as it is easier to read.
- Unlike analog multimeters, zero adjustment is not required.
- Digital output is suitable for further processing or recording and can be useful in a rapidly increasing range of computer controlled applications.
- With the advent of Integrated circuits, the size, cost and power requirements of digital multimeters has been drastically reduced.
- Accuracy is increased due to digital readout. You can make mistake in reading the scale in analog multimeter, but digital multimeters have a LCD display to show accurate reading.
- DMMs can be used in testing continuity, capacitors, diodes and transistors. More advanced digital multimeters can also measure frequency.
- The ‘auto-ranging’ feature of a digital multimeter helps in selecting different measurement ranges, which can prevent damage to the meter if the wrong range is selected.
- Portable size makes it easy to carry anywhere.
- They cause less meter loading effects on the circuits being tested.
- Some advanced digital multimeters have microprocessors and can store the readings for further processing.
- They have very high input impedance.
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