Electrician Jobsite English & Troubleshooting
Multimeter Basics
Use a dead receptacle case to understand voltage, continuity, and resistance measurements and their limits.
Page highlights
- Recognize meter jacks, dial positions, and probes.
- Know when to measure voltage and when to measure continuity.
- Avoid using resistance or continuity mode on energized circuits.
- Voltage is measured in parallel, across two points.
- Continuity/resistance uses the meter's internal battery and must be used only on de-energized circuits.
- Readings must be interpreted with symptoms, not as isolated numbers.
This site provides learning materials and does not replace local rules, permits, site procedures, or qualified judgment.