What is a multimeter?

Before we know how to use a multimeter,we must understand a safety information about multimeter.

To avoid possible electric shock or personal injury,PLEASE follow these guideline

• Do not use the meter  or test lead if they appear damage or not operating properly.
• Always use proper terminal,switch position and range for measurements.
• Verify the meter`s operation by measuring a known voltage.
• Do not apply more than the rated voltage,between terminals or any terminal and earth ground.
• Use caution with voltage above 30 VAC rms,42 VAC peak or 60 VDC.It pose a shock hazard.
• Disconnect circuit power supply and discharge all high-voltage capacitor before testing RESISTANCE,CONTINUITY,DIODE OR CAPACITANCE.
• Do not use the meter around explosive gas and vapor
• When using test lead,keep your finger behind the finger guard.
• Avoid working alone
• Use only the replacement fuse specified.
• Check the test lead  for continuity before use.Do not use if the reading are high or noisy. read more