Digital Multimeter
Description
A Digital Multimeter (DMM) is an electronic testing instrument used to measure electrical parameters such as voltage, current, and resistance. It displays readings digitally, providing high accuracy and ease of use. It is widely used in electrical, electronic, and maintenance work.
Parts
- Display Screen: Shows measurement readings.
- Rotary Selector Switch: Selects measurement function.
- Test Leads: Probes used to connect to the circuit.
- Input Terminals: Ports for connecting test leads.
- Internal Circuit: Processes electrical signals.
Material
- Plastic Body
- Electronic Components
- Copper Test Leads with Insulation
Uses
- Measuring voltage, current, and resistance
- Testing electrical circuits
- Fault finding and troubleshooting
- Maintenance and repair work
Safety
- Use correct range before measurement.
- Do not measure beyond rated limits.
- Ensure proper connection of test leads.
- Avoid contact with live circuits.
- Switch off after use.
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