Advantages and disadvantages of digital voltmeter over analog voltmeter

Whenever you measure electrical equipment, you will need a meter that can measure volts, amperes, and ohms. Most meters can do all three and have a voltmeter, ohmmeter and ammeter for features uses. However, there are two kinds of meters: Analog and digital. Here this article gives the advantages and disadvantages of digital voltmeter over analog voltmeter to better understand this topic.


There are some advantages and disadvantages of digital voltmeter over an analog voltmeter are listed below :


Advantages of digital voltmeter:
  • A digital voltmeter gives good stability.
  • Digital voltmeter has an automatic range selection.
  • A digital voltmeter can be programmed so controlling by computer is achieved.
  • It provides a better resolution.
  • It has a high speed.
  • It is bipolar.
  • It is auto-ranging.
  • Extremely high input impedance.
  • The internal calibration does not depend on o the measuring circuit.
  • Reading can be taken very fast.
  • Digital voltmeter has an automatic range selection.
  • No moving part extremely rugged and able to be made impervious to drops and shock and vibration encountered with rough use handling.
  • Overrange protection.
Disadvantages of digital voltmeter:
  • It gives some extra feature are expensive.
  • This voltmeter is usually very hard to spot transient voltage spikes, etc.
  • The speed of operation is limited due to the digitizing circuit.
  • While we have to use the display depends on the external power source or battery.
  • Digital voltmeters are prone to damage if the voltage is too much increased beyond the limit.
  • It is very to spot the transient voltage spikes.
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