Multimeter
study, testing of electronics components using multimeter
Multimeter
- The meter used for measuring and checking various of values , functions related to electric and electronics is called multi meter or Multimeter.
- A Multimeter can be used as volt meter, Ohm meter and ampere meter. Multimeter is a very useful instrument which can also be used for checking various electronic components like diode, transistor resistance etc.
- it can also be used for checking continuity, volt, ohm and ampere.
Analog Multimeter
Analog multimeters use a microammeter with a moving pointer to
display readings.
Reading an Analog Multimeter
Ø
Find the right scale on an analog multimeter.
Ø
Make a voltage scale reading based on your range.
Ø
Estimate the value between numbers.
Ø
Multiply the resistance reading on an analog
multimeter.
Ø
Find out more about the dB scale.
Measuring Resistance
Ø Set the multimeter to Ohms or Resistance.
Ø Observe the meter indication.
Ø Connect the test leads.
Ø Hold the probes at the end of the test leads together.
Ø
Measure the resistance of something like a light
bulb that you know is good.
Ø Try different ranges.
Ø Test resistance between hands.
Digital Multimeter
Ø Rating and reading of all functions of a Multimeter
are displayed on the display screen in digital form which are more accurate and
can be easily read by users.
Ø
This multimeter tests AC/DC voltage, DC
current, resistance, transistor and diode, battery test. Features an
easy-to-read digital LCD display and automatic zero adjust.
Ø
AC-DC Volt, AC-DC Current, checking of components
and digital gate operation (high / low, pulse) etc can be done more accurately
by a digital Multimeter.
Ø
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.
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