Using a multimeter to measure
A digital multimeter, or DMM is a useful measuring voltage, current and resistance instrument, and meters have a system for testing transistors and capacitors. It can also be used to check the continuity of cables and fuses. If you like DIY, making the car maintenance or troubleshooting electronics and electrical equipment, a multimeter is a useful accessory to have in your toolbox home.
If you have any questions, just leave a comment at the end of the “how”. Also, if you find this article useful, please share it on Facebook or other social networks with easy buttons.
Using a multimeter – Basic Definitions
V – This is the pressure in an electric circuit
Amp – This is a measure of the current flowing in an electrical circuit
Ohm – Measurement of the resistance to flow in a circuit
voltage source – This produces a current flow in a circuit. It could be a source of battery, generator or grid power bank
Support – A device or component that is powered by a voltage source. This could be an electronic resistance, bulb, electric heating, motor or any electrical device
Plant – This is usually the point in a circuit to which the negative terminal of a source or battery power is connected
DC – DC. The current flows only one way from a DC source, an example of which is a battery
AC – alternating current. The current flows in one direction from a reverse source and flows in the other direction. This occurs many times per second at a speed determined by the frequency which is typically 50 or 60 Hz. The feed network in a home is AC
For more detailed information on these amounts, a visit to this center is taken:
Volts, watts, amps, Kilowatts hours, it all mean? – The fundamentals of electricity
Using a multimeter – measurement functions in the instrument
A basic multimeter facilitates measurement of:
Continuity – indicated by a timbre or tone
Some basic meter does not have a power of the current range.
Further meters may have the following functions:
HFE transistor or DC current gain
Temperature with an additional probe
voltage ranges, current and resistance are generally selected by turning a rotary dial, and the measurement is displayed on a liquid crystal screen or the ladder. DMM laboratory bench sometimes seven segment LED displays.