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5 Things to Consider Before Your Next Digital Multimeter Purchase

5 Things to Consider Before Your Next Digital Multimeter Purchase

Application Notes

There are various types of digital multimeters (DMM) on the market. So how do you determine which one is best for your application? Selecting a DMM with more capabilities than you need means spending more money than necessary, while selecting a device under-equipped for your application can expose technicians to life-threatening electrical hazards.

There are 5 key specs you need to consider before purchasing a digital multimeter:

  • NUMBER OF DISPLAY DIGITS
  • COUNTS
  • RANGE
  • RESOLUTION
  • ACCURACY

 

1. Display Digits

In general, most manufacturers specify a DMM display by digits of resolution. For example, the digits of resolution for Keysight digital multimeters goes from 3 ½ digits to 8 ½ digits. A 5 ½ DMM, for example, has five full digits that display values from 0 to 9 and a fractional digit. The fractional digit is the most significant digit in the display. It is the ratio of the maximum value the digit can attain over the number of possible states.

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