December 6, 2025
66From an electrician’s perspective, multimeter ranges must align with real-world tasks. For wiring checks, a 600V AC range is crucial. Testing car batteries requires 20V DC and 10A DC ranges. Resistance ranges up to 2MΩ handle most insulation tests. Look for CAT III/IV safety ratings for reliability. Brands like Fluke and Klein Tools dominate this space.
49The ranges of a multimeter include resistance range, diode and transistor value range, DC voltage and current range, AC current and voltage range, capacitance range, and measurement range. Here are some precautions for using a multimeter:
Check battery power before use:
Before using, check if the battery power is sufficient, as insufficient power can affect test results.
Do not change ranges arbitrarily during measurement:
During measurement, do not change ranges arbitrarily as it can easily damage the multimeter. If a range change is necessary, turn off the power first, then change the range before resuming measurement.
Avoid touching metal parts during the process:
During measurement, avoid touching the metal parts of the probes as it can easily affect the measurement results and may cause safety hazards.
33A multimeter typically measures voltage (AC/DC), current (AC/DC), and resistance, with ranges varying by model. For voltage, common ranges are 200mV to 1000V. Current ranges often span 200µA to 10A. Resistance ranges usually cover 200Ω to 20MΩ. Some advanced models include capacitance (100pF to 100µF), temperature, and continuity testing.
When selecting a multimeter, consider:
Entry-level models like the Fluke 101 offer basic ranges, while professional tools like the Fluke 87V provide higher precision and broader ranges. Always check the specifications for your specific use case.
