Top 3 Mistakes When Using a Multimeter — and How to Avoid Them

10/27/2025

A digital multimeter is one of the most common tools for any engineer or student. But even experienced users sometimes make mistakes that lead to incorrect readings or equipment damage.

• Mistake 1: Measuring voltage in the wrong mode
  Always check whether the multimeter is set to AC or DC before connecting.
• Mistake 2: Ignoring the probe polarity
  Incorrect probe connection may cause negative readings or even short circuits.
• Mistake 3: Skipping continuity test
  Before measuring resistance or voltage, always test your probes in OHM mode. Zero resistance confirms good leads.

Tip: Make it a habit to do a quick two-step check: probe continuity + three-point voltage test. This simple routine can save your device and your life.

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