What should you pay attention to when measuring the current with a multimeter? -Solutions - Huaqiang Electronic Network

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Before measuring current, it's essential to determine whether the current is AC or DC. Adjust the multimeter's selector switch accordingly to either the DC or AC current setting. Next, choose an appropriate range that matches the expected current value. Then, connect the multimeter in series with the circuit you are testing.

The measured current can be calculated using the formula: I = (Range / Full Scale) × Pointer Index. This helps ensure accurate readings when using an analog multimeter.

When measuring DC current, always make sure the polarity of the meter is correct. Reversing the positive and negative leads can damage the meter or give incorrect readings. Also, remember that the multimeter must be connected in series with the circuit, not in parallel. This is crucial for both safety and accuracy during measurements.

Always double-check the settings before starting any measurement. If you're unsure about the current type or magnitude, start with the highest range and work your way down to avoid overloading the meter. Proper handling and understanding of the multimeter's functions will help you achieve reliable and safe results every time.