My DMM Is Giving Inconsistent Measurements

Updated Sep 26, 2019

Reported In

Hardware

  • Digital Multimeter Device

Issue Details

I am trying to take measurements and I am getting inconsistent readings on my DMM. What can I do?

Solution

If you are using Direct Current (DC) and have active components then you are likely to experience a change because the components will be charging as you run the test.

Therefore, take 3 measurements in quick, timed succession. Then use these to predict when the current would settle and which would enable more accurate measurements to be taken. By taking three measurements to estimate the settling rate of the current within the system, it would be possible to calculate a period where the current would have settled and where a more consistent reading could be taken by the DMM.