How to use Digital Multimeter

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How To Use A Digital Multimeter. It is a complete Digital Multimeter Tutorial.
How to measure DC Voltage
How to measure AC voltage
How to test electronic components
How to use a multimeter
How to use a digital multimeter to test voltage.
How to measure current.
How to test continuity.
How to check components.
A multimeter or a multitester, also known as a VOM (volt-ohm-milliammeter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter can measure voltage, current, and resistance. Analog multimeters use a microammeter with a moving pointer to display readings. Digital multimeters (DMM, DVOM) have a numeric display, and may also show a graphical bar representing the measured value.
App contents:
✔️ What is a digital multimeter?
✔️ Multimeter Basic Definitions
✔️ Multimeter Measuring Functions
✔️ How a Digital Multimeter Works
✔️ Digital Multimeter symbols
✔️ Digital Multimeter Parts and functions
✔️ Safety Precaution
✔️ Test Continuity
✔️ Test Voltage
✔️ Test Resistance
✔️ Measure Current
✔️ How to Measure Frequency
✔️ Measure Capacitance
✔️ Test a Diode
✔️ Test a Transistor
✔️ Test a LED?
✔️ Test a Battery
✔️ Test a Speaker
✔️ Test a Fuse
✔️ Test a Charger
✔️ Test a Wire
✔️ Test a Switch
✔️ Test a Mic
✔️ Test a Mobile Vibrator
✔️ How to check a Relay
✔️ Test a Coil?
✔️ How to Test a Mobile Ringer
✔️ Short Mobile Checking
✔️ Transformer Checking
✔️ How to Check a DC Motor for Shorts?
✔️ Digital Multimeter FAQs
How to test electronics components using digital multimeter.
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It covers almost all functions of Multimeter.
Learn how to check electronics components
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What is a digital multimeter?
A digital multimeter (DMM) is a test tool used to measure two or more electrical values—principally voltage (volts), current (amps) and resistance (ohms). It is a standard diagnostic tool for technicians in the electrical/electronic industries.
Digital multimeters long ago replaced needle-based analog meters due to their ability to measure with greater accuracy, reliability and increased impedance. Fluke introduced its first digital multimeter in 1977.
Digital multimeters combine the testing capabilities of single-task meters—the voltmeter (for measuring volts), ammeter (amps) and ohmmeter (ohms). Often they include a number of additional specialized features or advanced options. Technicians with specific needs, therefore, can seek out a model targeted for particular tasks.
The face of a digital multimeter typically includes four components:
- Display: Where measurement readouts can be viewed.
- Buttons: For selecting various functions; the options vary by model.
- Dial (or rotary switch): For selecting primary measurement values (volts, amps, ohms).
- Input jacks: Where test leads are inserted.
Test leads are flexible, insulated wires (red for positive, black for negative) that plug into the DMM. They serve as the conductor from the item being tested to the multimeter. The probe tips on each lead are used for testing circuits.
The terms counts and digits are used to describe a digital multimeter's resolution—how fine a measurement a meter can make. By knowing a multimeter's resolution, a technician can determine if it is possible to see a small change in a measured signal.
Example: If a multimeter offers a resolution of 1 mV on the 4 V range, it is possible to see a change of 1 mV (1/1000th of a volt) while reading 1V.
Digital multimeters are typicaly grouped by their number of counts (up to 20,000) they display.
Broadly speaking, DMMs fall into one of a handful of categories:
1. General purpose (aka Testers)
2. Standard
3. Advanced
4. Compact
5. Wireless